@angular/core - npm Package Compare versions

Comparing version 22.0.0-next.12 to 22.0.0-rc.0

schematics/bundles/index-DxFMpcXS.cjs

+'use strict';
+/**
+ * @license Angular v22.0.0-rc.0
+ * (c) 2010-2026 Google LLC. https://angular.dev/
+ * License: MIT
+ */
+'use strict';
+
+var ts = require('typescript');
+var compilerCli = require('@angular/compiler-cli');
+var migrations = require('@angular/compiler-cli/private/migrations');
+require('node:path');
+var project_paths = require('./project_paths-D2V-Uh2L.cjs');
+var compiler = require('@angular/compiler');
+
+function getMemberName(member) {
+    if (member.name === undefined) {
+        return null;
+    }
+    if (ts.isIdentifier(member.name) || ts.isStringLiteralLike(member.name)) {
+        return member.name.text;
+    }
+    if (ts.isPrivateIdentifier(member.name)) {
+        return `#${member.name.text}`;
+    }
+    return null;
+}
+
+/** Checks whether the given node can be an `@Input()` declaration node. */
+function isInputContainerNode(node) {
+    return (((ts.isAccessor(node) && ts.isClassDeclaration(node.parent)) ||
+        ts.isPropertyDeclaration(node)) &&
+        getMemberName(node) !== null);
+}
+
+/**
+ * Detects `query(By.directive(T)).componentInstance` patterns and enhances
+ * them with information of `T`. This is important because `.componentInstance`
+ * is currently typed as `any` and may cause runtime test failures after input
+ * migrations then.
+ *
+ * The reference resolution pass leverages information from this pattern
+ * recognizer.
+ */
+class DebugElementComponentInstance {
+    checker;
+    cache = new WeakMap();
+    constructor(checker) {
+        this.checker = checker;
+    }
+    detect(node) {
+        if (this.cache.has(node)) {
+            return this.cache.get(node);
+        }
+        if (!ts.isPropertyAccessExpression(node)) {
+            return null;
+        }
+        // Check for `<>.componentInstance`.
+        if (!ts.isIdentifier(node.name) || node.name.text !== 'componentInstance') {
+            return null;
+        }
+        // Check for `<>.query(..).<>`.
+        if (!ts.isCallExpression(node.expression) ||
+            !ts.isPropertyAccessExpression(node.expression.expression) ||
+            !ts.isIdentifier(node.expression.expression.name) ||
+            node.expression.expression.name.text !== 'query') {
+            return null;
+        }
+        const queryCall = node.expression;
+        if (queryCall.arguments.length !== 1) {
+            return null;
+        }
+        const queryArg = queryCall.arguments[0];
+        let typeExpr;
+        if (ts.isCallExpression(queryArg) &&
+            queryArg.arguments.length === 1 &&
+            ts.isIdentifier(queryArg.arguments[0])) {
+            // Detect references, like: `query(By.directive(T))`.
+            typeExpr = queryArg.arguments[0];
+        }
+        else if (ts.isIdentifier(queryArg)) {
+            // Detect references, like: `harness.query(T)`.
+            typeExpr = queryArg;
+        }
+        else {
+            return null;
+        }
+        const symbol = this.checker.getSymbolAtLocation(typeExpr);
+        if (symbol?.valueDeclaration === undefined ||
+            !ts.isClassDeclaration(symbol?.valueDeclaration)) {
+            // Cache this as we use the expensive type checker.
+            this.cache.set(node, null);
+            return null;
+        }
+        const type = this.checker.getTypeAtLocation(symbol.valueDeclaration);
+        this.cache.set(node, type);
+        return type;
+    }
+}
+
+/**
+ * Recognizes `Partial<T>` instances in Catalyst tests. Those type queries
+ * are likely used for typing property initialization values for the given class `T`
+ * and we have a few scenarios:
+ *
+ *   1. The API does not unwrap signal inputs. In which case, the values are likely no
+ *      longer assignable to an `InputSignal`.
+ *   2. The API does unwrap signal inputs, in which case we need to unwrap the `Partial`
+ *      because the values are raw initial values, like they were before.
+ *
+ * We can enable this heuristic when we detect Catalyst as we know it supports unwrapping.
+ */
+class PartialDirectiveTypeInCatalystTests {
+    checker;
+    knownFields;
+    constructor(checker, knownFields) {
+        this.checker = checker;
+        this.knownFields = knownFields;
+    }
+    detect(node) {
+        // Detect `Partial<...>`
+        if (!ts.isTypeReferenceNode(node) ||
+            !ts.isIdentifier(node.typeName) ||
+            node.typeName.text !== 'Partial') {
+            return null;
+        }
+        // Ignore if the source file doesn't reference Catalyst.
+        if (!node.getSourceFile().text.includes('angular2/testing/catalyst')) {
+            return null;
+        }
+        // Extract T of `Partial<T>`.
+        const cmpTypeArg = node.typeArguments?.[0];
+        if (!cmpTypeArg ||
+            !ts.isTypeReferenceNode(cmpTypeArg) ||
+            !ts.isIdentifier(cmpTypeArg.typeName)) {
+            return null;
+        }
+        const cmpType = cmpTypeArg.typeName;
+        const symbol = this.checker.getSymbolAtLocation(cmpType);
+        // Note: Technically the class might be derived of an input-containing class,
+        // but this is out of scope for now. We can expand if we see it's a common case.
+        if (symbol?.valueDeclaration === undefined ||
+            !ts.isClassDeclaration(symbol.valueDeclaration) ||
+            !this.knownFields.shouldTrackClassReference(symbol.valueDeclaration)) {
+            return null;
+        }
+        return { referenceNode: node, targetClass: symbol.valueDeclaration };
+    }
+}
+
+/**
+ * Attempts to look up the given property access chain using
+ * the type checker.
+ *
+ * Notably this is not as safe as using the type checker directly to
+ * retrieve symbols of a given identifier, but in some cases this is
+ * a necessary approach to compensate e.g. for a lack of TCB information
+ * when processing Angular templates.
+ *
+ * The path is a list of properties to be accessed sequentially on the
+ * given type.
+ */
+function lookupPropertyAccess(checker, type, path, options = {}) {
+    let symbol = null;
+    for (const propName of path) {
+        // Note: We support assuming `NonNullable` for the pathl This is necessary
+        // in some situations as otherwise the lookups would fail to resolve the target
+        // symbol just because of e.g. a ternary. This is used in the signal input migration
+        // for host bindings.
+        type = options.ignoreNullability ? type.getNonNullableType() : type;
+        const propSymbol = type.getProperty(propName);
+        if (propSymbol === undefined) {
+            return null;
+        }
+        symbol = propSymbol;
+        type = checker.getTypeOfSymbol(propSymbol);
+    }
+    if (symbol === null) {
+        return null;
+    }
+    return { symbol, type };
+}
+
+/**
+ * AST visitor that iterates through a template and finds all
+ * input references.
+ *
+ * This resolution is important to be able to migrate references to inputs
+ * that will be migrated to signal inputs.
+ */
+class TemplateReferenceVisitor extends compiler.TmplAstRecursiveVisitor {
+    result = [];
+    /**
+     * Whether we are currently descending into HTML AST nodes
+     * where all bound attributes are considered potentially narrowing.
+     *
+     * Keeps track of all referenced inputs in such attribute expressions.
+     */
+    templateAttributeReferencedFields = null;
+    expressionVisitor;
+    seenKnownFieldsCount = new Map();
+    constructor(typeChecker, templateTypeChecker, componentClass, knownFields, fieldNamesToConsiderForReferenceLookup) {
+        super();
+        this.expressionVisitor = new TemplateExpressionReferenceVisitor(typeChecker, templateTypeChecker, componentClass, knownFields, fieldNamesToConsiderForReferenceLookup);
+    }
+    checkExpressionForReferencedFields(activeNode, expressionNode) {
+        const referencedFields = this.expressionVisitor.checkTemplateExpression(activeNode, expressionNode);
+        // Add all references to the overall visitor result.
+        this.result.push(...referencedFields);
+        // Count usages of seen input references. We'll use this to make decisions
+        // based on whether inputs are potentially narrowed or not.
+        for (const input of referencedFields) {
+            this.seenKnownFieldsCount.set(input.targetField.key, (this.seenKnownFieldsCount.get(input.targetField.key) ?? 0) + 1);
+        }
+        return referencedFields;
+    }
+    descendAndCheckForNarrowedSimilarReferences(potentiallyNarrowedInputs, descend) {
+        const inputs = potentiallyNarrowedInputs.map((i) => ({
+            ref: i,
+            key: i.targetField.key,
+            pastCount: this.seenKnownFieldsCount.get(i.targetField.key) ?? 0,
+        }));
+        descend();
+        for (const input of inputs) {
+            // Input was referenced inside a narrowable spot, and is used in child nodes.
+            // This is a sign for the input to be narrowed. Mark it as such.
+            if ((this.seenKnownFieldsCount.get(input.key) ?? 0) > input.pastCount) {
+                input.ref.isLikelyNarrowed = true;
+            }
+        }
+    }
+    visitTemplate(template) {
+        // Note: We assume all bound expressions for templates may be subject
+        // to TCB narrowing. This is relevant for now until we support narrowing
+        // of signal calls in templates.
+        // TODO: Remove with: https://github.com/angular/angular/pull/55456.
+        this.templateAttributeReferencedFields = [];
+        compiler.tmplAstVisitAll(this, template.attributes);
+        compiler.tmplAstVisitAll(this, template.templateAttrs);
+        // If we are dealing with a microsyntax template, do not check
+        // inputs and outputs as those are already passed to the children.
+        // Template attributes may contain relevant expressions though.
+        if (template.tagName === 'ng-template') {
+            compiler.tmplAstVisitAll(this, template.inputs);
+            compiler.tmplAstVisitAll(this, template.outputs);
+        }
+        const referencedInputs = this.templateAttributeReferencedFields;
+        this.templateAttributeReferencedFields = null;
+        this.descendAndCheckForNarrowedSimilarReferences(referencedInputs, () => {
+            compiler.tmplAstVisitAll(this, template.children);
+            compiler.tmplAstVisitAll(this, template.references);
+            compiler.tmplAstVisitAll(this, template.variables);
+        });
+    }
+    visitIfBlockBranch(block) {
+        if (block.expression) {
+            const referencedFields = this.checkExpressionForReferencedFields(block, block.expression);
+            this.descendAndCheckForNarrowedSimilarReferences(referencedFields, () => {
+                super.visitIfBlockBranch(block);
+            });
+        }
+        else {
+            super.visitIfBlockBranch(block);
+        }
+    }
+    visitForLoopBlock(block) {
+        this.checkExpressionForReferencedFields(block, block.expression);
+        if (block.trackBy !== null) {
+            this.checkExpressionForReferencedFields(block, block.trackBy);
+        }
+        super.visitForLoopBlock(block);
+    }
+    visitSwitchBlock(block) {
+        const referencedFields = this.checkExpressionForReferencedFields(block, block.expression);
+        this.descendAndCheckForNarrowedSimilarReferences(referencedFields, () => {
+            super.visitSwitchBlock(block);
+        });
+    }
+    visitSwitchBlockCase(block) {
+        if (block.expression) {
+            const referencedFields = this.checkExpressionForReferencedFields(block, block.expression);
+            this.descendAndCheckForNarrowedSimilarReferences(referencedFields, () => {
+                super.visitSwitchBlockCase(block);
+            });
+        }
+        else {
+            super.visitSwitchBlockCase(block);
+        }
+    }
+    visitDeferredBlock(deferred) {
+        if (deferred.triggers.when) {
+            this.checkExpressionForReferencedFields(deferred, deferred.triggers.when.value);
+        }
+        if (deferred.prefetchTriggers.when) {
+            this.checkExpressionForReferencedFields(deferred, deferred.prefetchTriggers.when.value);
+        }
+        super.visitDeferredBlock(deferred);
+    }
+    visitBoundText(text) {
+        this.checkExpressionForReferencedFields(text, text.value);
+    }
+    visitBoundEvent(attribute) {
+        this.checkExpressionForReferencedFields(attribute, attribute.handler);
+    }
+    visitBoundAttribute(attribute) {
+        const referencedFields = this.checkExpressionForReferencedFields(attribute, attribute.value);
+        // Attributes inside templates are potentially "narrowed" and hence we
+        // keep track of all referenced inputs to see if they actually are.
+        if (this.templateAttributeReferencedFields !== null) {
+            this.templateAttributeReferencedFields.push(...referencedFields);
+        }
+    }
+    visitLetDeclaration(decl) {
+        this.checkExpressionForReferencedFields(decl, decl.value);
+    }
+}
+/**
+ * Expression AST visitor that checks whether a given expression references
+ * a known `@Input()`.
+ *
+ * This resolution is important to be able to migrate references to inputs
+ * that will be migrated to signal inputs.
+ */
+class TemplateExpressionReferenceVisitor extends compiler.RecursiveAstVisitor {
+    typeChecker;
+    templateTypeChecker;
+    componentClass;
+    knownFields;
+    fieldNamesToConsiderForReferenceLookup;
+    activeTmplAstNode = null;
+    detectedInputReferences = [];
+    isInsideObjectShorthandExpression = false;
+    insideConditionalExpressionsWithReads = [];
+    constructor(typeChecker, templateTypeChecker, componentClass, knownFields, fieldNamesToConsiderForReferenceLookup) {
+        super();
+        this.typeChecker = typeChecker;
+        this.templateTypeChecker = templateTypeChecker;
+        this.componentClass = componentClass;
+        this.knownFields = knownFields;
+        this.fieldNamesToConsiderForReferenceLookup = fieldNamesToConsiderForReferenceLookup;
+    }
+    /** Checks the given AST expression. */
+    checkTemplateExpression(activeNode, expressionNode) {
+        this.detectedInputReferences = [];
+        this.activeTmplAstNode = activeNode;
+        expressionNode.visit(this, []);
+        return this.detectedInputReferences;
+    }
+    visit(ast, context) {
+        super.visit(ast, [...context, ast]);
+    }
+    // Keep track when we are inside an object shorthand expression. This is
+    // necessary as we need to expand the shorthand to invoke a potential new signal.
+    // E.g. `{bla}` may be transformed to `{bla: bla()}`.
+    visitLiteralMap(ast, context) {
+        for (const [idx, key] of ast.keys.entries()) {
+            this.isInsideObjectShorthandExpression =
+                key.kind === 'property' && !!key.isShorthandInitialized;
+            ast.values[idx].visit(this, context);
+            this.isInsideObjectShorthandExpression = false;
+        }
+    }
+    visitPropertyRead(ast, context) {
+        this._inspectPropertyAccess(ast, false, context);
+        super.visitPropertyRead(ast, context);
+    }
+    visitSafePropertyRead(ast, context) {
+        this._inspectPropertyAccess(ast, false, context);
+        super.visitPropertyRead(ast, context);
+    }
+    visitBinary(ast, context) {
+        if (ast.operation === '=' && ast.left instanceof compiler.PropertyRead) {
+            this._inspectPropertyAccess(ast.left, true, [...context, ast, ast.left]);
+        }
+        else {
+            super.visitBinary(ast, context);
+        }
+    }
+    visitConditional(ast, context) {
+        this.visit(ast.condition, context);
+        this.insideConditionalExpressionsWithReads.push(ast.condition);
+        this.visit(ast.trueExp, context);
+        this.visit(ast.falseExp, context);
+        this.insideConditionalExpressionsWithReads.pop();
+    }
+    /**
+     * Inspects the property access and attempts to resolve whether they access
+     * a known field. If so, the result is captured.
+     */
+    _inspectPropertyAccess(ast, isAssignment, astPath) {
+        if (this.fieldNamesToConsiderForReferenceLookup !== null &&
+            !this.fieldNamesToConsiderForReferenceLookup.has(ast.name)) {
+            return;
+        }
+        const isWrite = !!(isAssignment ||
+            (this.activeTmplAstNode && isTwoWayBindingNode(this.activeTmplAstNode)));
+        this._checkAccessViaTemplateTypeCheckBlock(ast, isWrite, astPath) ||
+            this._checkAccessViaOwningComponentClassType(ast, isWrite, astPath);
+    }
+    /**
+     * Checks whether the node refers to an input using the TCB information.
+     * Type check block may not exist for e.g. test components, so this can return `null`.
+     */
+    _checkAccessViaTemplateTypeCheckBlock(ast, isWrite, astPath) {
+        // There might be no template type checker. E.g. if we check host bindings.
+        if (this.templateTypeChecker === null) {
+            return false;
+        }
+        const symbol = this.templateTypeChecker.getSymbolOfNode(ast, this.componentClass);
+        if (symbol?.kind !== migrations.SymbolKind.Expression) {
+            return false;
+        }
+        const tsSymbol = this.templateTypeChecker.getTsSymbolOfSymbol(symbol);
+        if (tsSymbol === null) {
+            return false;
+        }
+        // Dangerous: Type checking symbol retrieval is a totally different `ts.Program`,
+        // than the one where we analyzed `knownInputs`.
+        // --> Find the input via its input id.
+        const targetInput = this.knownFields.attemptRetrieveDescriptorFromSymbol(tsSymbol);
+        if (targetInput === null) {
+            return false;
+        }
+        this.detectedInputReferences.push({
+            targetNode: targetInput.node,
+            targetField: targetInput,
+            read: ast,
+            readAstPath: astPath,
+            context: this.activeTmplAstNode,
+            isLikelyNarrowed: this._isPartOfNarrowingTernary(ast),
+            isObjectShorthandExpression: this.isInsideObjectShorthandExpression,
+            isWrite,
+        });
+        return true;
+    }
+    /**
+     * Simple resolution checking whether the given AST refers to a known input.
+     * This is a fallback for when there is no type checking information (e.g. in host bindings).
+     *
+     * It attempts to resolve references by traversing accesses of the "component class" type.
+     * e.g. `this.bla` is resolved via `CompType#bla` and further.
+     */
+    _checkAccessViaOwningComponentClassType(ast, isWrite, astPath) {
+        // We might check host bindings, which can never point to template variables or local refs.
+        const expressionTemplateTarget = this.templateTypeChecker === null
+            ? null
+            : this.templateTypeChecker.getExpressionTarget(ast, this.componentClass);
+        // Skip checking if:
+        // - the reference resolves to a template variable or local ref. No way to resolve without TCB.
+        // - the owning component does not have a name (should not happen technically).
+        if (expressionTemplateTarget !== null || this.componentClass.name === undefined) {
+            return;
+        }
+        const property = traverseReceiverAndLookupSymbol(ast, this.componentClass, this.typeChecker);
+        if (property === null) {
+            return;
+        }
+        const matchingTarget = this.knownFields.attemptRetrieveDescriptorFromSymbol(property);
+        if (matchingTarget === null) {
+            return;
+        }
+        this.detectedInputReferences.push({
+            targetNode: matchingTarget.node,
+            targetField: matchingTarget,
+            read: ast,
+            readAstPath: astPath,
+            context: this.activeTmplAstNode,
+            isLikelyNarrowed: this._isPartOfNarrowingTernary(ast),
+            isObjectShorthandExpression: this.isInsideObjectShorthandExpression,
+            isWrite,
+        });
+    }
+    _isPartOfNarrowingTernary(read) {
+        // Note: We do not safe check that the reads are fully matching 1:1. This is acceptable
+        // as worst case we just skip an input from being migrated. This is very unlikely too.
+        return this.insideConditionalExpressionsWithReads.some((r) => (r instanceof compiler.PropertyRead || r instanceof compiler.SafePropertyRead) && r.name === read.name);
+    }
+}
+/**
+ * Emulates an access to a given field using the TypeScript `ts.Type`
+ * of the given class. The resolved symbol of the access is returned.
+ */
+function traverseReceiverAndLookupSymbol(readOrWrite, componentClass, checker) {
+    const path = [readOrWrite.name];
+    let node = readOrWrite;
+    while (node.receiver instanceof compiler.PropertyRead) {
+        node = node.receiver;
+        path.unshift(node.name);
+    }
+    if (!(node.receiver instanceof compiler.ImplicitReceiver)) {
+        return null;
+    }
+    const classType = checker.getTypeAtLocation(componentClass.name);
+    return (lookupPropertyAccess(checker, classType, path, {
+        // Necessary to avoid breaking the resolution if there is
+        // some narrowing involved. E.g. `myClass ? myClass.input`.
+        ignoreNullability: true,
+    })?.symbol ?? null);
+}
+/** Whether the given node refers to a two-way binding AST node. */
+function isTwoWayBindingNode(node) {
+    return ((node instanceof compiler.TmplAstBoundAttribute && node.type === compiler.BindingType.TwoWay) ||
+        (node instanceof compiler.TmplAstBoundEvent && node.type === compiler.ParsedEventType.TwoWay));
+}
+
+/** Possible types of references to known fields detected. */
+exports.ReferenceKind = void 0;
+(function (ReferenceKind) {
+    ReferenceKind[ReferenceKind["InTemplate"] = 0] = "InTemplate";
+    ReferenceKind[ReferenceKind["InHostBinding"] = 1] = "InHostBinding";
+    ReferenceKind[ReferenceKind["TsReference"] = 2] = "TsReference";
+    ReferenceKind[ReferenceKind["TsClassTypeReference"] = 3] = "TsClassTypeReference";
+})(exports.ReferenceKind || (exports.ReferenceKind = {}));
+/** Whether the given reference is a TypeScript reference. */
+function isTsReference(ref) {
+    return ref.kind === exports.ReferenceKind.TsReference;
+}
+/** Whether the given reference is a template reference. */
+function isTemplateReference(ref) {
+    return ref.kind === exports.ReferenceKind.InTemplate;
+}
+/** Whether the given reference is a host binding reference. */
+function isHostBindingReference(ref) {
+    return ref.kind === exports.ReferenceKind.InHostBinding;
+}
+/**
+ * Whether the given reference is a TypeScript `ts.Type` reference
+ * to a class containing known fields.
+ */
+function isTsClassTypeReference(ref) {
+    return ref.kind === exports.ReferenceKind.TsClassTypeReference;
+}
+
+/**
+ * Checks host bindings of the given class and tracks all
+ * references to inputs within bindings.
+ */
+function identifyHostBindingReferences(node, programInfo, checker, reflector, result, knownFields, fieldNamesToConsiderForReferenceLookup) {
+    if (node.name === undefined) {
+        return;
+    }
+    const decorators = reflector.getDecoratorsOfDeclaration(node);
+    if (decorators === null) {
+        return;
+    }
+    const angularDecorators = migrations.getAngularDecorators(decorators, ['Directive', 'Component'], 
+    /* isAngularCore */ false);
+    if (angularDecorators.length === 0) {
+        return;
+    }
+    // Assume only one Angular decorator per class.
+    const ngDecorator = angularDecorators[0];
+    if (ngDecorator.args?.length !== 1) {
+        return;
+    }
+    const metadataNode = migrations.unwrapExpression(ngDecorator.args[0]);
+    if (!ts.isObjectLiteralExpression(metadataNode)) {
+        return;
+    }
+    const metadata = migrations.reflectObjectLiteral(metadataNode);
+    if (!metadata.has('host')) {
+        return;
+    }
+    let hostField = migrations.unwrapExpression(metadata.get('host'));
+    // Special-case in case host bindings are shared via a variable.
+    // e.g. Material button shares host bindings as a constant in the same target.
+    if (ts.isIdentifier(hostField)) {
+        let symbol = checker.getSymbolAtLocation(hostField);
+        // Plain identifier references can point to alias symbols (e.g. imports).
+        if (symbol !== undefined && symbol.flags & ts.SymbolFlags.Alias) {
+            symbol = checker.getAliasedSymbol(symbol);
+        }
+        if (symbol !== undefined &&
+            symbol.valueDeclaration !== undefined &&
+            ts.isVariableDeclaration(symbol.valueDeclaration)) {
+            hostField = symbol?.valueDeclaration.initializer;
+        }
+    }
+    if (hostField === undefined || !ts.isObjectLiteralExpression(hostField)) {
+        return;
+    }
+    const hostMap = migrations.reflectObjectLiteral(hostField);
+    const expressionResult = [];
+    const expressionVisitor = new TemplateExpressionReferenceVisitor(checker, null, node, knownFields, fieldNamesToConsiderForReferenceLookup);
+    for (const [rawName, expression] of hostMap.entries()) {
+        if (!ts.isStringLiteralLike(expression)) {
+            continue;
+        }
+        const isEventBinding = rawName.startsWith('(');
+        const isPropertyBinding = rawName.startsWith('[');
+        // Only migrate property or event bindings.
+        if (!isPropertyBinding && !isEventBinding) {
+            continue;
+        }
+        const parser = compiler.makeBindingParser();
+        const sourceSpan = new compiler.ParseSourceSpan(
+        // Fake source span to keep parsing offsets zero-based.
+        // We then later combine these with the expression TS node offsets.
+        new compiler.ParseLocation({ content: '', url: '' }, 0, 0, 0), new compiler.ParseLocation({ content: '', url: '' }, 0, 0, 0));
+        const name = rawName.substring(1, rawName.length - 1);
+        let parsed = undefined;
+        if (isEventBinding) {
+            const result = [];
+            parser.parseEvent(name.substring(1, name.length - 1), expression.text, false, sourceSpan, sourceSpan, [], result, sourceSpan);
+            parsed = result[0].handler;
+        }
+        else {
+            const result = [];
+            parser.parsePropertyBinding(name, expression.text, true, 
+            /* isTwoWayBinding */ false, sourceSpan, 0, sourceSpan, [], result, sourceSpan);
+            parsed = result[0].expression;
+        }
+        if (parsed != null) {
+            expressionResult.push(...expressionVisitor.checkTemplateExpression(expression, parsed));
+        }
+    }
+    for (const ref of expressionResult) {
+        result.references.push({
+            kind: exports.ReferenceKind.InHostBinding,
+            from: {
+                read: ref.read,
+                readAstPath: ref.readAstPath,
+                isObjectShorthandExpression: ref.isObjectShorthandExpression,
+                isWrite: ref.isWrite,
+                file: project_paths.projectFile(ref.context.getSourceFile(), programInfo),
+                hostPropertyNode: ref.context,
+            },
+            target: ref.targetField,
+        });
+    }
+}
+
+/**
+ * Attempts to extract the `TemplateDefinition` for the given
+ * class, if possible.
+ *
+ * The definition can then be used with the Angular compiler to
+ * load/parse the given template.
+ */
+function attemptExtractTemplateDefinition(node, checker, reflector, resourceLoader) {
+    const classDecorators = reflector.getDecoratorsOfDeclaration(node);
+    const evaluator = new migrations.PartialEvaluator(reflector, checker, null);
+    const ngDecorators = classDecorators !== null
+        ? migrations.getAngularDecorators(classDecorators, ['Component'], /* isAngularCore */ false)
+        : [];
+    if (ngDecorators.length === 0 ||
+        ngDecorators[0].args === null ||
+        ngDecorators[0].args.length === 0 ||
+        !ts.isObjectLiteralExpression(ngDecorators[0].args[0])) {
+        return null;
+    }
+    const properties = migrations.reflectObjectLiteral(ngDecorators[0].args[0]);
+    const templateProp = properties.get('template');
+    const templateUrlProp = properties.get('templateUrl');
+    const containingFile = node.getSourceFile().fileName;
+    // inline template.
+    if (templateProp !== undefined) {
+        const templateStr = evaluator.evaluate(templateProp);
+        if (typeof templateStr === 'string') {
+            return {
+                isInline: true,
+                expression: templateProp,
+                preserveWhitespaces: false,
+                resolvedTemplateUrl: containingFile,
+                templateUrl: containingFile,
+            };
+        }
+    }
+    try {
+        // external template.
+        if (templateUrlProp !== undefined) {
+            const templateUrl = evaluator.evaluate(templateUrlProp);
+            if (typeof templateUrl === 'string') {
+                return {
+                    isInline: false,
+                    preserveWhitespaces: false,
+                    templateUrlExpression: templateUrlProp,
+                    templateUrl,
+                    resolvedTemplateUrl: resourceLoader.resolve(templateUrl, containingFile),
+                };
+            }
+        }
+    }
+    catch (e) {
+        console.error(`Could not parse external template: ${e}`);
+    }
+    return null;
+}
+
+/**
+ * Checks whether the given class has an Angular template, and resolves
+ * all of the references to inputs.
+ */
+function identifyTemplateReferences(programInfo, node, reflector, checker, evaluator, templateTypeChecker, resourceLoader, options, result, knownFields, fieldNamesToConsiderForReferenceLookup) {
+    const template = templateTypeChecker.getTemplate(node, compilerCli.OptimizeFor.WholeProgram) ??
+        // If there is no template registered in the TCB or compiler, the template may
+        // be skipped due to an explicit `jit: true` setting. We try to detect this case
+        // and parse the template manually.
+        extractTemplateWithoutCompilerAnalysis(node, checker, reflector, resourceLoader, evaluator, options);
+    if (template !== null) {
+        const visitor = new TemplateReferenceVisitor(checker, templateTypeChecker, node, knownFields, fieldNamesToConsiderForReferenceLookup);
+        template.forEach((node) => node.visit(visitor));
+        for (const res of visitor.result) {
+            const templateFilePath = res.context.sourceSpan.start.file.url;
+            // Templates without an URL are non-mappable artifacts of e.g.
+            // string concatenated templates. See the `indirect` template
+            // source mapping concept in the compiler. We skip such references
+            // as those cannot be migrated, but print an error for now.
+            if (templateFilePath === '') {
+                // TODO: Incorporate a TODO potentially.
+                console.error(`Found reference to field ${res.targetField.key} that cannot be ` +
+                    `migrated because the template cannot be parsed with source map information ` +
+                    `(in file: ${node.getSourceFile().fileName}).`);
+                continue;
+            }
+            result.references.push({
+                kind: exports.ReferenceKind.InTemplate,
+                from: {
+                    read: res.read,
+                    readAstPath: res.readAstPath,
+                    node: res.context,
+                    isObjectShorthandExpression: res.isObjectShorthandExpression,
+                    originatingTsFile: project_paths.projectFile(node.getSourceFile(), programInfo),
+                    templateFile: project_paths.projectFile(compilerCli.absoluteFrom(templateFilePath), programInfo),
+                    isLikelyPartOfNarrowing: res.isLikelyNarrowed,
+                    isWrite: res.isWrite,
+                },
+                target: res.targetField,
+            });
+        }
+    }
+}
+/**
+ * Attempts to extract a `@Component` template from the given class,
+ * without relying on the `NgCompiler` program analysis.
+ *
+ * This is useful for JIT components using `jit: true` which were not
+ * processed by the Angular compiler, but may still have templates that
+ * contain references to inputs that we can resolve via the fallback
+ * reference resolutions (that does not use the type check block).
+ */
+function extractTemplateWithoutCompilerAnalysis(node, checker, reflector, resourceLoader, evaluator, options) {
+    if (node.name === undefined) {
+        return null;
+    }
+    const tmplDef = attemptExtractTemplateDefinition(node, checker, reflector, resourceLoader);
+    if (tmplDef === null) {
+        return null;
+    }
+    return migrations.extractTemplate(node, tmplDef, evaluator, null, resourceLoader, {
+        enableBlockSyntax: true,
+        enableLetSyntax: true,
+        usePoisonedData: true,
+        enableI18nLegacyMessageIdFormat: options.enableI18nLegacyMessageIdFormat !== false,
+        i18nNormalizeLineEndingsInICUs: options.i18nNormalizeLineEndingsInICUs === true,
+        enableSelectorless: false,
+    }, migrations.CompilationMode.FULL).nodes;
+}
+
+/** Gets the pattern and property name for a given binding element. */
+function resolveBindingElement(node) {
+    const name = node.propertyName ?? node.name;
+    // If we are discovering a non-analyzable element in the path, abort.
+    if (!ts.isStringLiteralLike(name) && !ts.isIdentifier(name)) {
+        return null;
+    }
+    return {
+        pattern: node.parent,
+        propertyName: name.text,
+    };
+}
+/** Gets the declaration node of the given binding element. */
+function getBindingElementDeclaration(node) {
+    while (true) {
+        if (ts.isBindingElement(node.parent.parent)) {
+            node = node.parent.parent;
+        }
+        else {
+            return node.parent.parent;
+        }
+    }
+}
+
+/**
+ * Expands the given reference to its containing expression, capturing
+ * the full context.
+ *
+ * E.g. `traverseAccess(ref<`bla`>)` may return `this.bla`
+ *   or `traverseAccess(ref<`bla`>)` may return `this.someObj.a.b.c.bla`.
+ *
+ * This helper is useful as we will replace the full access with a temporary
+ * variable for narrowing. Replacing just the identifier is wrong.
+ */
+function traverseAccess(access) {
+    if (ts.isPropertyAccessExpression(access.parent) && access.parent.name === access) {
+        return access.parent;
+    }
+    else if (ts.isElementAccessExpression(access.parent) &&
+        access.parent.argumentExpression === access) {
+        return access.parent;
+    }
+    return access;
+}
+
+/**
+ * Unwraps the parent of the given node, if it's a
+ * parenthesized expression or `as` expression.
+ */
+function unwrapParent(node) {
+    if (ts.isParenthesizedExpression(node.parent)) {
+        return unwrapParent(node.parent);
+    }
+    else if (ts.isAsExpression(node.parent)) {
+        return unwrapParent(node.parent);
+    }
+    return node;
+}
+
+/**
+ * List of binary operators that indicate a write operation.
+ *
+ * Useful for figuring out whether an expression assigns to
+ * something or not.
+ */
+const writeBinaryOperators = [
+    ts.SyntaxKind.EqualsToken,
+    ts.SyntaxKind.BarBarEqualsToken,
+    ts.SyntaxKind.BarEqualsToken,
+    ts.SyntaxKind.AmpersandEqualsToken,
+    ts.SyntaxKind.AmpersandAmpersandEqualsToken,
+    ts.SyntaxKind.SlashEqualsToken,
+    ts.SyntaxKind.MinusEqualsToken,
+    ts.SyntaxKind.PlusEqualsToken,
+    ts.SyntaxKind.CaretEqualsToken,
+    ts.SyntaxKind.PercentEqualsToken,
+    ts.SyntaxKind.AsteriskEqualsToken,
+    ts.SyntaxKind.ExclamationEqualsToken,
+];
+
+/**
+ * Checks whether given TypeScript reference refers to an Angular input, and captures
+ * the reference if possible.
+ *
+ * @param fieldNamesToConsiderForReferenceLookup List of field names that should be
+ *   respected when expensively looking up references to known fields.
+ *   May be null if all identifiers should be inspected.
+ */
+function identifyPotentialTypeScriptReference(node, programInfo, checker, knownFields, result, fieldNamesToConsiderForReferenceLookup, advisors) {
+    // Skip all identifiers that never can point to a migrated field.
+    // TODO: Capture these assumptions and performance optimizations in the design doc.
+    if (fieldNamesToConsiderForReferenceLookup !== null &&
+        !fieldNamesToConsiderForReferenceLookup.has(node.text)) {
+        return;
+    }
+    let target = undefined;
+    try {
+        // Resolve binding elements to their declaration symbol.
+        // Commonly inputs are accessed via object expansion. e.g. `const {input} = this;`.
+        if (ts.isBindingElement(node.parent)) {
+            // Skip binding elements that are using spread.
+            if (node.parent.dotDotDotToken !== undefined) {
+                return;
+            }
+            const bindingInfo = resolveBindingElement(node.parent);
+            if (bindingInfo === null) {
+                // The declaration could not be resolved. Skip analyzing this.
+                return;
+            }
+            const bindingType = checker.getTypeAtLocation(bindingInfo.pattern);
+            const resolved = lookupPropertyAccess(checker, bindingType, [bindingInfo.propertyName]);
+            target = resolved?.symbol;
+        }
+        else {
+            target = checker.getSymbolAtLocation(node);
+        }
+    }
+    catch (e) {
+        console.error('Unexpected error while trying to resolve identifier reference:');
+        console.error(e);
+        // Gracefully skip analyzing. This can happen when e.g. a reference is named similar
+        // to an input, but is dependant on `.d.ts` that is not necessarily available (clutz dts).
+        return;
+    }
+    noTargetSymbolCheck: if (target === undefined) {
+        if (ts.isPropertyAccessExpression(node.parent) && node.parent.name === node) {
+            const propAccessSymbol = checker.getSymbolAtLocation(node.parent.expression);
+            if (propAccessSymbol !== undefined &&
+                propAccessSymbol.valueDeclaration !== undefined &&
+                ts.isVariableDeclaration(propAccessSymbol.valueDeclaration) &&
+                propAccessSymbol.valueDeclaration.initializer !== undefined) {
+                target = advisors.debugElComponentInstanceTracker
+                    .detect(propAccessSymbol.valueDeclaration.initializer)
+                    ?.getProperty(node.text);
+                // We found a target in the fallback path. Break out.
+                if (target !== undefined) {
+                    break noTargetSymbolCheck;
+                }
+            }
+        }
+        return;
+    }
+    let targetInput = knownFields.attemptRetrieveDescriptorFromSymbol(target);
+    if (targetInput === null) {
+        return;
+    }
+    const access = unwrapParent(traverseAccess(node));
+    const accessParent = access.parent;
+    const isWriteReference = ts.isBinaryExpression(accessParent) &&
+        accessParent.left === access &&
+        writeBinaryOperators.includes(accessParent.operatorToken.kind);
+    // track accesses from source files to known fields.
+    result.references.push({
+        kind: exports.ReferenceKind.TsReference,
+        from: {
+            node,
+            file: project_paths.projectFile(node.getSourceFile(), programInfo),
+            isWrite: isWriteReference,
+            isPartOfElementBinding: ts.isBindingElement(node.parent),
+        },
+        target: targetInput,
+    });
+}
+
+/**
+ * Phase where we iterate through all source file references and
+ * detect references to known fields (e.g. commonly inputs).
+ *
+ * This is useful, for example in the signal input migration whe
+ * references need to be migrated to unwrap signals, given that
+ * their target properties is no longer holding a raw value, but
+ * instead an `InputSignal`.
+ *
+ * This phase detects references in all types of locations:
+ *    - TS source files
+ *    - Angular templates (inline or external)
+ *    - Host binding expressions.
+ */
+function createFindAllSourceFileReferencesVisitor(programInfo, checker, reflector, resourceLoader, evaluator, templateTypeChecker, knownFields, fieldNamesToConsiderForReferenceLookup, result) {
+    const debugElComponentInstanceTracker = new DebugElementComponentInstance(checker);
+    const partialDirectiveCatalystTracker = new PartialDirectiveTypeInCatalystTests(checker, knownFields);
+    const perfCounters = {
+        template: 0,
+        hostBindings: 0,
+        tsReferences: 0,
+        tsTypes: 0,
+    };
+    // Schematic NodeJS execution may not have `global.performance` defined.
+    const currentTimeInMs = () => typeof global.performance !== 'undefined' ? global.performance.now() : Date.now();
+    const visitor = (node) => {
+        let lastTime = currentTimeInMs();
+        // Note: If there is no template type checker and resource loader, we aren't processing
+        // an Angular program, and can skip template detection.
+        if (ts.isClassDeclaration(node) && templateTypeChecker !== null && resourceLoader !== null) {
+            identifyTemplateReferences(programInfo, node, reflector, checker, evaluator, templateTypeChecker, resourceLoader, programInfo.userOptions, result, knownFields, fieldNamesToConsiderForReferenceLookup);
+            perfCounters.template += (currentTimeInMs() - lastTime) / 1000;
+            lastTime = currentTimeInMs();
+            identifyHostBindingReferences(node, programInfo, checker, reflector, result, knownFields, fieldNamesToConsiderForReferenceLookup);
+            perfCounters.hostBindings += (currentTimeInMs() - lastTime) / 1000;
+            lastTime = currentTimeInMs();
+        }
+        lastTime = currentTimeInMs();
+        // find references, but do not capture input declarations itself.
+        if (ts.isIdentifier(node) &&
+            !(isInputContainerNode(node.parent) && node.parent.name === node)) {
+            identifyPotentialTypeScriptReference(node, programInfo, checker, knownFields, result, fieldNamesToConsiderForReferenceLookup, {
+                debugElComponentInstanceTracker,
+            });
+        }
+        perfCounters.tsReferences += (currentTimeInMs() - lastTime) / 1000;
+        lastTime = currentTimeInMs();
+        // Detect `Partial<T>` references.
+        // Those are relevant to be tracked as they may be updated in Catalyst to
+        // unwrap signal inputs. Commonly people use `Partial` in Catalyst to type
+        // some "component initial values".
+        const partialDirectiveInCatalyst = partialDirectiveCatalystTracker.detect(node);
+        if (partialDirectiveInCatalyst !== null) {
+            result.references.push({
+                kind: exports.ReferenceKind.TsClassTypeReference,
+                from: {
+                    file: project_paths.projectFile(partialDirectiveInCatalyst.referenceNode.getSourceFile(), programInfo),
+                    node: partialDirectiveInCatalyst.referenceNode,
+                },
+                isPartialReference: true,
+                isPartOfCatalystFile: true,
+                target: partialDirectiveInCatalyst.targetClass,
+            });
+        }
+        perfCounters.tsTypes += (currentTimeInMs() - lastTime) / 1000;
+    };
+    return {
+        visitor,
+        debugPrintMetrics: () => {
+            console.info('Source file analysis performance', perfCounters);
+        },
+    };
+}
+
+exports.createFindAllSourceFileReferencesVisitor = createFindAllSourceFileReferencesVisitor;
+exports.getBindingElementDeclaration = getBindingElementDeclaration;
+exports.getMemberName = getMemberName;
+exports.isHostBindingReference = isHostBindingReference;
+exports.isInputContainerNode = isInputContainerNode;
+exports.isTemplateReference = isTemplateReference;
+exports.isTsClassTypeReference = isTsClassTypeReference;
+exports.isTsReference = isTsReference;
+exports.traverseAccess = traverseAccess;
+exports.unwrapParent = unwrapParent;

fesm2022/_attribute-chunk.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/_effect-chunk.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/_not_found-chunk.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/_resource-chunk.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/_resource-chunk.mjs.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"_resource-chunk.mjs","sources":["../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/packages/core/src/authoring/output/output_emitter_ref.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/packages/core/src/hydration/cache.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/packages/core/src/render3/reactivity/computed.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/packages/core/src/render3/reactivity/untracked.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/packages/core/src/resource/api.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/packages/core/src/render3/reactivity/linked_signal.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/packages/core/src/resource/resource.ts"],"sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {setActiveConsumer} from '../../../primitives/signals';\n\nimport {inject} from '../../di/injector_compatibility';\nimport {ErrorHandler} from '../../error_handler';\nimport {formatRuntimeError, RuntimeError, RuntimeErrorCode} from '../../errors';\nimport {DestroyRef} from '../../linker/destroy_ref';\n\nimport {OutputRef, OutputRefSubscription} from './output_ref';\n\n/**\n * An `OutputEmitterRef` is created by the `output()` function and can be\n * used to emit values to consumers of your directive or component.\n *\n * Consumers of your directive/component can bind to the output and\n * subscribe to changes via the bound event syntax. For example:\n *\n * ```html\n * <my-comp (valueChange)=\"processNewValue($event)\" />\n * ```\n *\n * @see [Custom events with outputs](guide/components/outputs)\n *\n * @publicAPI\n */\nexport class OutputEmitterRef<T> implements OutputRef<T> {\n  private destroyed = false;\n  private listeners: Array<(value: T) => void> | null = null;\n  private errorHandler = inject(ErrorHandler, {optional: true});\n\n  /** @internal */\n  destroyRef: DestroyRef = inject(DestroyRef);\n\n  constructor() {\n    // Clean-up all listeners and mark as destroyed upon destroy.\n    this.destroyRef.onDestroy(() => {\n      this.destroyed = true;\n      this.listeners = null;\n    });\n  }\n\n  subscribe(callback: (value: T) => void): OutputRefSubscription {\n    if (this.destroyed) {\n      throw new RuntimeError(\n        RuntimeErrorCode.OUTPUT_REF_DESTROYED,\n        ngDevMode &&\n          'Unexpected subscription to destroyed `OutputRef`. ' +\n            'The owning directive/component is destroyed.',\n      );\n    }\n\n    (this.listeners ??= []).push(callback);\n\n    return {\n      unsubscribe: () => {\n        const idx = this.listeners?.indexOf(callback);\n        if (idx !== undefined && idx !== -1) {\n          this.listeners?.splice(idx, 1);\n        }\n      },\n    };\n  }\n\n  /** Emits a new value to the output. */\n  emit(value: T): void {\n    if (this.destroyed) {\n      console.warn(\n        formatRuntimeError(\n          RuntimeErrorCode.OUTPUT_REF_DESTROYED,\n          ngDevMode &&\n            'Unexpected emit for destroyed `OutputRef`. ' +\n              'The owning directive/component is destroyed.',\n        ),\n      );\n      return;\n    }\n\n    if (this.listeners === null) {\n      return;\n    }\n\n    const previousConsumer = setActiveConsumer(null);\n    try {\n      for (const listenerFn of this.listeners) {\n        try {\n          listenerFn(value);\n        } catch (err: unknown) {\n          this.errorHandler?.handleError(err);\n        }\n      }\n    } finally {\n      setActiveConsumer(previousConsumer);\n    }\n  }\n}\n\n/** Gets the owning `DestroyRef` for the given output. */\nexport function getOutputDestroyRef(ref: OutputRef<unknown>): DestroyRef | undefined {\n  return ref.destroyRef;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {InjectionToken} from '../di';\n\n/**\n * Token used to the determine if the transfer cache should be used, for example for resources.\n */\nexport const CACHE_ACTIVE = new InjectionToken<{isActive: boolean}>(\n  typeof ngDevMode !== 'undefined' && ngDevMode ? 'STATE_CACHE_ACTIVE' : '',\n);\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {createComputed, SIGNAL} from '../../../primitives/signals';\n\nimport {Signal, ValueEqualityFn} from './api';\n\n/**\n * Options passed to the `computed` creation function.\n */\nexport interface CreateComputedOptions<T> {\n  /**\n   * A comparison function which defines equality for computed values.\n   */\n  equal?: ValueEqualityFn<T>;\n\n  /**\n   * A debug name for the computed signal. Used in Angular DevTools to identify the signal.\n   */\n  debugName?: string;\n}\n\n/**\n * Create a computed `Signal` which derives a reactive value from an expression.\n * @see [Computed signals](guide/signals#computed-signals)\n */\nexport function computed<T>(computation: () => T, options?: CreateComputedOptions<T>): Signal<T> {\n  const getter = createComputed(computation, options?.equal);\n\n  if (typeof ngDevMode !== 'undefined' && ngDevMode) {\n    const debugName = options?.debugName;\n    getter[SIGNAL].debugName = debugName;\n    getter.toString = () => `[Computed${debugName ? ' (' + debugName + ')' : ''}: ${getter()}]`;\n  }\n\n  return getter;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {untracked as untrackedPrimitive} from '../../../primitives/signals';\n\n/**\n * Execute an arbitrary function in a non-reactive (non-tracking) context. The executed function\n * can, optionally, return a value.\n * @see [Reading without tracking dependencies](guide/signals#reading-without-tracking-dependencies)\n */\nexport function untracked<T>(nonReactiveReadsFn: () => T): T {\n  return untrackedPrimitive(nonReactiveReadsFn);\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {Injector} from '../di/injector';\nimport {Signal, ValueEqualityFn} from '../render3/reactivity/api';\nimport {WritableSignal} from '../render3/reactivity/signal';\n\n/** Error thrown when a `Resource` dependency of another resource errors. */\nexport class ResourceDependencyError extends Error {\n  /** The dependency that errored. */\n  readonly dependency: Resource<unknown>;\n\n  constructor(dependency: Resource<unknown>) {\n    super('Dependency error', {cause: dependency.error()});\n    this.name = 'ResourceDependencyError';\n    this.dependency = dependency;\n  }\n}\n\n/**\n * Special status codes that can be thrown from a resource's `params` or `request` function to\n * indicate that the resource should transition to that status.\n */\nexport class ResourceParamsStatus extends Error {\n  private readonly _brand: undefined;\n  private constructor(msg: string) {\n    super(msg);\n  }\n\n  /** Status code that transitions the resource to `idle` status. */\n  static readonly IDLE = new ResourceParamsStatus('IDLE');\n\n  /** Status code that transitions the resource to `loading` status. */\n  static readonly LOADING = new ResourceParamsStatus('LOADING');\n}\n\n/** Context received by a resource's `params` or `request` function. */\nexport interface ResourceParamsContext {\n  /**\n   * Chains the current params off of the value of another resource, returning the value\n   * of the other resource if it is available, or propagating the status to the current resource by\n   * throwing the appropriate status code if the value is not available.\n   */\n  readonly chain: <T>(resource: Resource<T>) => T;\n}\n\n/**\n * String value capturing the status of a `Resource`.\n *\n * Possible statuses are:\n *\n * `idle` - The resource has no valid request and will not perform any loading. `value()` will be\n * `undefined`.\n *\n * `loading` - The resource is currently loading a new value as a result of a change in its reactive\n * dependencies. `value()` will be `undefined`.\n *\n * `reloading` - The resource is currently reloading a fresh value for the same reactive\n * dependencies. `value()` will continue to return the previously fetched value during the reloading\n * operation.\n *\n * `error` - Loading failed with an error. `value()` will be `undefined`.\n *\n * `resolved` - Loading has completed and the resource has the value returned from the loader.\n *\n * `local` - The resource's value was set locally via `.set()` or `.update()`.\n *\n * @publicApi 22.0\n */\nexport type ResourceStatus = 'idle' | 'error' | 'loading' | 'reloading' | 'resolved' | 'local';\n\n/**\n * A Resource is an asynchronous dependency (for example, the results of an API call) that is\n * managed and delivered through signals.\n *\n * The usual way of creating a `Resource` is through the `resource` function, but various other APIs\n * may present `Resource` instances to describe their own concepts.\n *\n * @publicApi 22.0\n */\nexport interface Resource<T> {\n  /**\n   * The current value of the `Resource`, or throws an error if the resource is in an error state.\n   */\n  readonly value: Signal<T>;\n\n  /**\n   * The current status of the `Resource`, which describes what the resource is currently doing and\n   * what can be expected of its `value`.\n   */\n  readonly status: Signal<ResourceStatus>;\n\n  /**\n   * When in the `error` state, this returns the last known error from the `Resource`.\n   */\n  readonly error: Signal<Error | undefined>;\n\n  /**\n   * Whether this resource is loading a new value (or reloading the existing one).\n   */\n  readonly isLoading: Signal<boolean>;\n\n  /**\n   * The current state of this resource, represented as a `ResourceSnapshot`.\n   */\n  readonly snapshot: Signal<ResourceSnapshot<T>>;\n\n  /**\n   * Whether this resource has a valid current value.\n   *\n   * This function is reactive.\n   */\n  hasValue(this: T extends undefined ? this : never): this is Resource<Exclude<T, undefined>>;\n\n  hasValue(): boolean;\n}\n\n/**\n * A `Resource` with a mutable value.\n *\n * Overwriting the value of a resource sets it to the 'local' state.\n *\n * @publicApi 22.0\n */\nexport interface WritableResource<T> extends Resource<T> {\n  readonly value: WritableSignal<T>;\n  hasValue(\n    this: T extends undefined ? this : never,\n  ): this is WritableResource<Exclude<T, undefined>>;\n\n  hasValue(): boolean;\n\n  /**\n   * Convenience wrapper for `value.set`.\n   */\n  set(value: T): void;\n\n  /**\n   * Convenience wrapper for `value.update`.\n   */\n  update(updater: (value: T) => T): void;\n  asReadonly(): Resource<T>;\n\n  /**\n   * Instructs the resource to re-load any asynchronous dependency it may have.\n   *\n   * Note that the resource will not enter its reloading state until the actual backend request is\n   * made.\n   *\n   * @returns true if a reload was initiated, false if a reload was unnecessary or unsupported\n   */\n  reload(): boolean;\n}\n\n/**\n * A `WritableResource` created through the `resource` function.\n *\n * @publicApi 22.0\n */\nexport interface ResourceRef<T> extends WritableResource<T> {\n  hasValue(this: T extends undefined ? this : never): this is ResourceRef<Exclude<T, undefined>>;\n\n  hasValue(): boolean;\n  /**\n   * Manually destroy the resource, which cancels pending requests and returns it to `idle` state.\n   */\n  destroy(): void;\n}\n\n/**\n * Parameter to a `ResourceLoader` which gives the request and other options for the current loading\n * operation.\n *\n * @publicApi 22.0\n */\nexport interface ResourceLoaderParams<R> {\n  params: NoInfer<Exclude<R, undefined>>;\n  abortSignal: AbortSignal;\n  previous: {\n    status: ResourceStatus;\n  };\n}\n\n/**\n * Loading function for a `Resource`.\n *\n * @publicApi 22.0\n */\nexport type ResourceLoader<T, R> = (param: ResourceLoaderParams<R>) => PromiseLike<T>;\n\n/**\n * Streaming loader for a `Resource`.\n *\n * @publicApi 22.0\n */\nexport type ResourceStreamingLoader<T, R> = (\n  param: ResourceLoaderParams<R>,\n) => Signal<ResourceStreamItem<T>> | PromiseLike<Signal<ResourceStreamItem<T>>> | undefined;\n\n/**\n * Options to the `resource` function, for creating a resource.\n *\n * @publicApi 22.0\n */\nexport interface BaseResourceOptions<T, R> {\n  /**\n   * A reactive function which determines the request to be made. Whenever the request changes, the\n   * loader will be triggered to fetch a new value for the resource.\n   *\n   * If a params function isn't provided, the loader won't rerun unless the resource is reloaded.\n   */\n  params?: (ctx: ResourceParamsContext) => R;\n\n  /**\n   * The value which will be returned from the resource when a server value is unavailable, such as\n   * when the resource is still loading.\n   */\n  defaultValue?: NoInfer<T>;\n\n  /**\n   * Equality function used to compare the return value of the loader.\n   */\n  equal?: ValueEqualityFn<T>;\n\n  /**\n   * Overrides the `Injector` used by `resource`.\n   */\n  injector?: Injector;\n\n  /**\n   * Identifier used to cache the resource data in the `TransferState` during server-side rendering and to retrieve it on the client side.\n   * This value value needs to be identical for both the client and server.\n   */\n  id?: string;\n}\n\n/**\n * Options to the `resource` function, for creating a resource.\n *\n * @publicApi 22.0\n */\nexport interface PromiseResourceOptions<T, R> extends BaseResourceOptions<T, R> {\n  /**\n   * Loading function which returns a `Promise` of the resource's value for a given request.\n   */\n  loader: ResourceLoader<T, R>;\n\n  /**\n   * Cannot specify `stream` and `loader` at the same time.\n   */\n  stream?: never;\n}\n\n/**\n * Options to the `resource` function, for creating a resource.\n *\n * @publicApi 22.0\n */\nexport interface StreamingResourceOptions<T, R> extends BaseResourceOptions<T, R> {\n  /**\n   * Loading function which returns a `Promise` of a signal of the resource's value for a given\n   * request, which can change over time as new values are received from a stream.\n   */\n  stream: ResourceStreamingLoader<T, R>;\n\n  /**\n   * Cannot specify `stream` and `loader` at the same time.\n   */\n  loader?: never;\n}\n\n/**\n * @publicApi 22.0\n */\nexport type ResourceOptions<T, R> = (\n  | PromiseResourceOptions<T, R>\n  | StreamingResourceOptions<T, R>\n) & {\n  /**\n   * A debug name for the reactive node. Used in Angular DevTools to identify the node.\n   */\n  debugName?: string;\n};\n\n/**\n * @publicApi 22.0\n */\nexport type ResourceStreamItem<T> = {value: T} | {error: Error};\n\n/**\n * An explicit representation of a resource's state.\n *\n * @publicApi 22.0\n * @see [Resource composition with snapshots](guide/signals/resource#resource-composition-with-snapshots)\n */\nexport type ResourceSnapshot<T> =\n  | {readonly status: 'idle'; readonly value: T}\n  | {readonly status: 'loading' | 'reloading'; readonly value: T}\n  | {readonly status: 'resolved' | 'local'; readonly value: T}\n  | {readonly status: 'error'; readonly error: Error};\n\n/**\n * Options for `debounced`.\n *\n * @see [Debouncing signals with `debounced`](guide/signals/debounced)\n *\n * @experimental 22.0\n */\nexport interface DebouncedOptions<T> {\n  /** The `Injector` to use for the debounced resource. */\n  injector?: Injector;\n  /** The equality function to use for comparing values. */\n  equal?: ValueEqualityFn<T>;\n}\n\n/**\n * Represents the wait condition for item debouncing.\n * Can be a number of milliseconds or a function that returns a Promise.\n *\n * @see [Debouncing signals with `debounced`](guide/signals/debounced)\n *\n * @experimental 22.0\n */\nexport type DebounceTimer<T> =\n  | number\n  | ((value: T, lastValue: ResourceSnapshot<T>) => Promise<void> | void);\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {\n  ComputationFn,\n  createLinkedSignal,\n  LinkedSignalGetter,\n  LinkedSignalNode,\n  linkedSignalSetFn,\n  linkedSignalUpdateFn,\n  SIGNAL,\n} from '../../../primitives/signals';\nimport {Signal, ValueEqualityFn} from './api';\nimport {signalAsReadonlyFn, WritableSignal} from './signal';\n\nconst identityFn = <T>(v: T) => v;\n\n/**\n * Creates a writable signal whose value is initialized and reset by the linked, reactive computation.\n *\n * @publicApi 20.0\n */\nexport function linkedSignal<D>(\n  computation: () => D,\n  options?: {equal?: ValueEqualityFn<NoInfer<D>>; debugName?: string},\n): WritableSignal<D>;\n\n/**\n * Creates a writable signal whose value is initialized and reset by the linked, reactive computation.\n * This is an advanced API form where the computation has access to the previous value of the signal and the computation result.\n *\n * Note: The computation is reactive, meaning the linked signal will automatically update whenever any of the signals used within the computation change.\n *\n * @publicApi 20.0\n * @see [Dependent state with linkedSignal](guide/signals/linked-signal)\n */\nexport function linkedSignal<S, D>(options: {\n  source: () => S;\n  computation: (source: NoInfer<S>, previous?: {source: NoInfer<S>; value: NoInfer<D>}) => D;\n  equal?: ValueEqualityFn<NoInfer<D>>;\n  debugName?: string;\n}): WritableSignal<D>;\n\nexport function linkedSignal<S, D>(\n  optionsOrComputation:\n    | {\n        source: () => S;\n        computation: ComputationFn<S, D>;\n        equal?: ValueEqualityFn<D>;\n        debugName?: string;\n      }\n    | (() => D),\n  options?: {equal?: ValueEqualityFn<D>; debugName?: string},\n): WritableSignal<D> {\n  if (typeof optionsOrComputation === 'function') {\n    const getter = createLinkedSignal<D, D>(\n      optionsOrComputation,\n      identityFn<D>,\n      options?.equal,\n    ) as LinkedSignalGetter<D, D> & WritableSignal<D>;\n    return upgradeLinkedSignalGetter(getter, options?.debugName);\n  } else {\n    const getter = createLinkedSignal<S, D>(\n      optionsOrComputation.source,\n      optionsOrComputation.computation,\n      optionsOrComputation.equal,\n    );\n    return upgradeLinkedSignalGetter(getter, optionsOrComputation.debugName);\n  }\n}\n\nfunction upgradeLinkedSignalGetter<S, D>(\n  getter: LinkedSignalGetter<S, D>,\n  debugName?: string,\n): WritableSignal<D> {\n  if (typeof ngDevMode !== 'undefined' && ngDevMode) {\n    getter[SIGNAL].debugName = debugName;\n    getter.toString = () => `[LinkedSignal${debugName ? ' (' + debugName + ')' : ''}: ${getter()}]`;\n  }\n\n  const node = getter[SIGNAL] as LinkedSignalNode<S, D>;\n  const upgradedGetter = getter as LinkedSignalGetter<S, D> & WritableSignal<D>;\n\n  upgradedGetter.set = (newValue: D) => linkedSignalSetFn(node, newValue);\n  upgradedGetter.update = (updateFn: (value: D) => D) => linkedSignalUpdateFn(node, updateFn);\n  upgradedGetter.asReadonly = signalAsReadonlyFn.bind(getter as any) as () => Signal<D>;\n\n  return upgradedGetter;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {isSignal, Signal, ValueEqualityFn} from '../render3/reactivity/api';\nimport {computed} from '../render3/reactivity/computed';\nimport {effect, EffectRef} from '../render3/reactivity/effect';\nimport {signal, signalAsReadonlyFn, WritableSignal} from '../render3/reactivity/signal';\nimport {untracked} from '../render3/reactivity/untracked';\nimport {\n  Resource,\n  ResourceDependencyError,\n  ResourceOptions,\n  ResourceParamsStatus,\n  ResourceSnapshot,\n  ResourceStatus,\n  ResourceStreamingLoader,\n  ResourceStreamItem,\n  StreamingResourceOptions,\n  type ResourceParamsContext,\n  type ResourceRef,\n  type WritableResource,\n} from './api';\n\nimport {assertInInjectionContext} from '../di/contextual';\nimport {Injector} from '../di/injector';\nimport {inject} from '../di/injector_compatibility';\nimport {RuntimeError, RuntimeErrorCode} from '../errors';\nimport {CACHE_ACTIVE} from '../hydration/cache';\nimport {DestroyRef} from '../linker/destroy_ref';\nimport {PendingTasks} from '../pending_tasks';\nimport {linkedSignal} from '../render3/reactivity/linked_signal';\nimport {StateKey, TransferState} from '../transfer_state';\n\n/**\n * Constructs a `Resource` that projects a reactive request to an asynchronous operation defined by\n * a loader function, which exposes the result of the loading operation via signals.\n *\n * Note that `resource` is intended for _read_ operations, not operations which perform mutations.\n * `resource` will cancel in-progress loads via the `AbortSignal` when destroyed or when a new\n * request object becomes available, which could prematurely abort mutations.\n *\n * @see [Async reactivity with resources](guide/signals/resource)\n *\n * @experimental 19.0\n */\nexport function resource<T, R>(\n  options: ResourceOptions<T, R> & {defaultValue: NoInfer<T>},\n): ResourceRef<T>;\n\n/**\n * Constructs a `Resource` that projects a reactive request to an asynchronous operation defined by\n * a loader function, which exposes the result of the loading operation via signals.\n *\n * Note that `resource` is intended for _read_ operations, not operations which perform mutations.\n * `resource` will cancel in-progress loads via the `AbortSignal` when destroyed or when a new\n * request object becomes available, which could prematurely abort mutations.\n *\n * @experimental 19.0\n * @see [Async reactivity with resources](guide/signals/resource)\n */\nexport function resource<T, R>(options: ResourceOptions<T, R>): ResourceRef<T | undefined>;\nexport function resource<T, R>(options: ResourceOptions<T, R>): ResourceRef<T | undefined> {\n  if (ngDevMode && !options?.injector) {\n    assertInInjectionContext(resource);\n  }\n\n  const oldNameForParams = (\n    options as ResourceOptions<T, R> & {request: ResourceOptions<T, R>['params']}\n  ).request;\n  const params = options.params ?? oldNameForParams ?? (() => null!);\n  return new ResourceImpl<T | undefined, R>(\n    params,\n    getLoader(options),\n    options.defaultValue,\n    options.equal ? wrapEqualityFn(options.equal) : undefined,\n    options.debugName,\n    options.injector ?? inject(Injector),\n    options.id as StateKey<T>,\n  );\n}\n\ntype ResourceInternalStatus = 'idle' | 'loading' | 'resolved' | 'local';\n\n/**\n * Internal state of a resource.\n */\ninterface ResourceProtoState<T> {\n  extRequest: WrappedRequest;\n\n  // For simplicity, status is internally tracked as a subset of the public status enum.\n  // Reloading and Error statuses are projected from Loading and Resolved based on other state.\n  status: ResourceInternalStatus;\n}\n\ninterface ResourceState<T> extends ResourceProtoState<T> {\n  previousStatus: ResourceStatus;\n  stream: Signal<ResourceStreamItem<T>> | undefined;\n}\n\ntype WrappedRequest = {\n  request?: unknown;\n  reload: number;\n  status?: ResourceInternalStatus;\n  error?: Error;\n};\n\n/**\n * Base class which implements `.value` as a `WritableSignal` by delegating `.set` and `.update`.\n */\nabstract class BaseWritableResource<T> implements WritableResource<T> {\n  readonly value: WritableSignal<T>;\n  abstract readonly status: Signal<ResourceStatus>;\n  abstract readonly error: Signal<Error | undefined>;\n\n  abstract reload(): boolean;\n\n  readonly isLoading: Signal<boolean>;\n\n  constructor(value: Signal<T>, debugName: string | undefined) {\n    this.value = value as WritableSignal<T>;\n    this.value.set = this.set.bind(this);\n    this.value.update = this.update.bind(this);\n    this.value.asReadonly = signalAsReadonlyFn;\n\n    this.isLoading = computed(\n      () => this.status() === 'loading' || this.status() === 'reloading',\n      ngDevMode ? createDebugNameObject(debugName, 'isLoading') : undefined,\n    );\n  }\n\n  abstract set(value: T): void;\n\n  private readonly isError = computed(() => this.status() === 'error');\n\n  update(updateFn: (value: T) => T): void {\n    this.set(updateFn(untracked(this.value)));\n  }\n\n  // Use a computed here to avoid triggering reactive consumers if the value changes while staying\n  // either defined or undefined.\n  private readonly isValueDefined = computed(() => {\n    // Check if it's in an error state first to prevent the error from bubbling up.\n    if (this.isError()) {\n      return false;\n    }\n\n    return this.value() !== undefined;\n  });\n\n  private _snapshot: Signal<ResourceSnapshot<T>> | undefined;\n  get snapshot(): Signal<ResourceSnapshot<T>> {\n    return (this._snapshot ??= computed(() => {\n      const status = this.status();\n      if (status === 'error') {\n        return {status: 'error', error: this.error()!};\n      } else {\n        return {status, value: this.value()};\n      }\n    }));\n  }\n\n  hasValue(): this is ResourceRef<Exclude<T, undefined>> {\n    return this.isValueDefined();\n  }\n\n  asReadonly(): Resource<T> {\n    return this;\n  }\n}\n\n/**\n * Implementation for `resource()` which uses a `linkedSignal` to manage the resource's state.\n */\nexport class ResourceImpl<T, R> extends BaseWritableResource<T> implements ResourceRef<T> {\n  private readonly pendingTasks: PendingTasks;\n\n  /**\n   * The current state of the resource. Status, value, and error are derived from this.\n   */\n  private readonly state: WritableSignal<ResourceState<T>>;\n\n  /**\n   * Combines the current request with a reload counter which allows the resource to be reloaded on\n   * imperative command.\n   */\n  protected readonly extRequest: WritableSignal<WrappedRequest>;\n  private readonly effectRef: EffectRef;\n\n  private pendingController: AbortController | undefined;\n  private resolvePendingTask: (() => void) | undefined = undefined;\n  private destroyed = false;\n  private unregisterOnDestroy: () => void;\n\n  override readonly status: Signal<ResourceStatus>;\n  override readonly error: Signal<Error | undefined>;\n  private readonly transferState: TransferState | undefined;\n\n  constructor(\n    request: (ctx: ResourceParamsContext) => R,\n    private readonly loaderFn: ResourceStreamingLoader<T, R>,\n    defaultValue: T,\n    private readonly equal: ValueEqualityFn<T> | undefined,\n    private readonly debugName: string | undefined,\n    injector: Injector,\n    private transferCacheKey: StateKey<T> | undefined,\n    getInitialStream?: (request: R) => Signal<ResourceStreamItem<T>> | undefined,\n  ) {\n    if (isInParamsFunction()) {\n      throw invalidResourceCreationInParams();\n    }\n\n    super(\n      // Feed a computed signal for the value to `BaseWritableResource`, which will upgrade it to a\n      // `WritableSignal` that delegates to `ResourceImpl.set`.\n      computed(\n        () => {\n          const streamValue = this.state().stream?.();\n\n          if (!streamValue) {\n            return defaultValue;\n          }\n\n          // Prevents `hasValue()` from throwing an error when a reload happened in the error state\n          if (this.state().status === 'loading' && this.error()) {\n            return defaultValue;\n          }\n\n          if (!isResolved(streamValue)) {\n            throw new ResourceValueError(this.error()!);\n          }\n\n          return streamValue.value;\n        },\n        {equal, ...(ngDevMode ? createDebugNameObject(debugName, 'value') : undefined)},\n      ),\n      debugName,\n    );\n\n    const cacheState = injector.get(CACHE_ACTIVE, undefined, {optional: true}) ?? {isActive: false};\n\n    this.transferState = injector.get(TransferState, undefined, {optional: true}) ?? undefined;\n\n    this.extRequest = linkedSignal<WrappedRequest>(\n      () => {\n        try {\n          setInParamsFunction(true);\n          return {request: request(paramsContext), reload: 0};\n        } catch (error) {\n          rethrowFatalErrors(error);\n          if (error === ResourceParamsStatus.IDLE) {\n            return {status: 'idle', reload: 0};\n          } else if (error === ResourceParamsStatus.LOADING) {\n            return {status: 'loading', reload: 0};\n          }\n          return {error: error as Error, reload: 0};\n        } finally {\n          setInParamsFunction(false);\n        }\n      },\n      ngDevMode ? createDebugNameObject(debugName, 'extRequest') : undefined,\n    );\n\n    // The main resource state is managed in a `linkedSignal`, which allows the resource to change\n    // state instantaneously when the request signal changes.\n    this.state = linkedSignal<WrappedRequest, ResourceState<T>>({\n      // Whenever the request changes,\n      source: this.extRequest,\n      // Compute the state of the resource given a change in status.\n      computation: (extRequest, previous) => {\n        let {request, status, error} = extRequest;\n        let stream: Signal<ResourceStreamItem<T>> | undefined;\n\n        if (error) {\n          status = 'resolved';\n          stream = signal(\n            {error: encapsulateResourceError(error)},\n            ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n          );\n        } else if (!status) {\n          if (!previous) {\n            const transferState = this.transferState;\n            const cacheKey = this.transferCacheKey;\n            if (cacheState.isActive && cacheKey && transferState && request !== undefined) {\n              const key = this.transferCacheKey;\n              if (transferState.hasKey(cacheKey)) {\n                stream = signal(\n                  {value: transferState.get(cacheKey, defaultValue)},\n                  ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n                );\n              }\n            }\n\n            if (!stream) {\n              stream = getInitialStream?.(extRequest.request as R);\n            }\n            // Clear getInitialStream so it doesn't hold onto memory\n            getInitialStream = undefined;\n            status = request === undefined ? 'idle' : stream ? 'resolved' : 'loading';\n          } else {\n            status = request === undefined ? 'idle' : 'loading';\n            if (previous.value.extRequest.request === request) {\n              stream = previous.value.stream;\n            }\n          }\n        }\n\n        return {\n          extRequest,\n          status,\n          previousStatus: previous ? projectStatusOfState(previous.value) : 'idle',\n          stream,\n        };\n      },\n      ...(ngDevMode ? createDebugNameObject(debugName, 'state') : undefined),\n    });\n\n    this.effectRef = effect(this.loadEffect.bind(this), {\n      injector,\n      manualCleanup: true,\n      ...(ngDevMode ? createDebugNameObject(debugName, 'loadEffect') : undefined),\n    });\n\n    this.pendingTasks = injector.get(PendingTasks);\n\n    // Cancel any pending request when the resource itself is destroyed.\n    this.unregisterOnDestroy = injector.get(DestroyRef).onDestroy(() => this.destroy());\n\n    this.status = computed(\n      () => projectStatusOfState(this.state()),\n      ngDevMode ? createDebugNameObject(debugName, 'status') : undefined,\n    );\n\n    this.error = computed(\n      () => {\n        const stream = this.state().stream?.();\n        return stream && !isResolved(stream) ? stream.error : undefined;\n      },\n      ngDevMode ? createDebugNameObject(debugName, 'error') : undefined,\n    );\n  }\n\n  /**\n   * Called either directly via `WritableResource.set` or via `.value.set()`.\n   */\n  override set(value: T): void {\n    if (this.destroyed) {\n      return;\n    }\n\n    const error = untracked(this.error);\n    const state = untracked(this.state);\n\n    if (!error) {\n      const current = untracked(this.value);\n      if (\n        state.status === 'local' &&\n        (this.equal ? this.equal(current, value) : current === value)\n      ) {\n        return;\n      }\n    }\n\n    // Enter Local state with the user-defined value.\n    this.state.set({\n      extRequest: state.extRequest,\n      status: 'local',\n      previousStatus: 'local',\n      stream: signal(\n        {value},\n        ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n      ),\n    });\n\n    // We're departing from whatever state the resource was in previously, so cancel any in-progress\n    // loading operations.\n    this.abortInProgressLoad();\n  }\n\n  override reload(): boolean {\n    // We don't want to restart in-progress loads.\n    const {status} = untracked(this.state);\n    if (status === 'idle' || status === 'loading') {\n      return false;\n    }\n\n    // Increment the request reload to trigger the `state` linked signal to switch us to `Reload`\n    this.extRequest.update(({request, reload}) => ({request, reload: reload + 1}));\n    return true;\n  }\n\n  destroy(): void {\n    this.destroyed = true;\n    this.unregisterOnDestroy();\n    this.effectRef.destroy();\n    this.abortInProgressLoad();\n\n    // Destroyed resources enter Idle state.\n    this.state.set({\n      extRequest: {request: undefined, reload: 0},\n      status: 'idle',\n      previousStatus: 'idle',\n      stream: undefined,\n    });\n  }\n\n  private async loadEffect(): Promise<void> {\n    const extRequest = this.extRequest();\n\n    // Capture the previous status before any state transitions. Note that this is `untracked` since\n    // we do not want the effect to depend on the state of the resource, only on the request.\n    const {status: currentStatus, previousStatus} = untracked(this.state);\n\n    if (extRequest.request === undefined) {\n      // Nothing to load (and we should already be in a non-loading state).\n      return;\n    } else if (currentStatus !== 'loading') {\n      // We're not in a loading or reloading state, so this loading request is stale.\n      return;\n    }\n\n    // Cancel any previous loading attempts.\n    this.abortInProgressLoad();\n\n    // Capturing _this_ load's pending task in a local variable is important here. We may attempt to\n    // resolve it twice:\n    //\n    //  1. when the loading function promise resolves/rejects\n    //  2. when cancelling the loading operation\n    //\n    // After the loading operation is cancelled, `this.resolvePendingTask` no longer represents this\n    // particular task, but this `await` may eventually resolve/reject. Thus, when we cancel in\n    // response to (1) below, we need to cancel the locally saved task.\n    let resolvePendingTask: (() => void) | undefined = (this.resolvePendingTask =\n      this.pendingTasks.add());\n\n    const {signal: abortSignal} = (this.pendingController = new AbortController());\n\n    try {\n      // The actual loading is run through `untracked` - only the request side of `resource` is\n      // reactive. This avoids any confusion with signals tracking or not tracking depending on\n      // which side of the `await` they are.\n      const stream = untracked(() => {\n        return this.loaderFn({\n          params: extRequest.request as Exclude<R, undefined>,\n          abortSignal,\n          previous: {\n            status: previousStatus,\n          },\n        });\n      });\n\n      // If this request has been aborted, or the current request no longer\n      // matches this load, then we should ignore this resolution.\n      const shouldDiscard = () => abortSignal.aborted || untracked(this.extRequest) !== extRequest;\n\n      if (isSignal(stream)) {\n        if (shouldDiscard()) {\n          return;\n        }\n\n        this.state.set({\n          extRequest,\n          status: 'resolved',\n          previousStatus: 'resolved',\n          stream,\n        });\n\n        const result = untracked(stream);\n        if (typeof ngServerMode !== 'undefined' && ngServerMode) {\n          saveToTransferState(result, this.transferCacheKey, this.transferState);\n        }\n      } else {\n        const resolvedStream = await stream;\n        if (shouldDiscard()) {\n          return;\n        }\n\n        this.state.set({\n          extRequest,\n          status: 'resolved',\n          previousStatus: 'resolved',\n          stream: resolvedStream,\n        });\n\n        // Use a local variable for the result so TypeScript can narrow `resolvedStream` correctly.\n        const result = resolvedStream ? untracked(resolvedStream) : undefined;\n        if (typeof ngServerMode !== 'undefined' && ngServerMode) {\n          saveToTransferState(result, this.transferCacheKey, this.transferState);\n        }\n      }\n    } catch (err) {\n      rethrowFatalErrors(err);\n      if (abortSignal.aborted || untracked(this.extRequest) !== extRequest) {\n        return;\n      }\n\n      this.state.set({\n        extRequest,\n        status: 'resolved',\n        previousStatus: 'error',\n        stream: signal(\n          {error: encapsulateResourceError(err)},\n          ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n        ),\n      });\n    } finally {\n      // Resolve the pending task now that the resource has a value.\n      resolvePendingTask?.();\n      resolvePendingTask = undefined;\n    }\n  }\n\n  private abortInProgressLoad(): void {\n    untracked(() => this.pendingController?.abort());\n    this.pendingController = undefined;\n\n    // Once the load is aborted, we no longer want to block stability on its resolution.\n    this.resolvePendingTask?.();\n    this.resolvePendingTask = undefined;\n  }\n}\n\nfunction saveToTransferState<R, T>(\n  result: ResourceStreamItem<T> | undefined,\n  transferCacheKey: StateKey<T> | undefined,\n  transferState: TransferState | undefined,\n): void {\n  if (transferCacheKey && transferState && result && isResolved(result)) {\n    transferState.set(transferCacheKey, result.value);\n  }\n}\n\n/**\n * Wraps an equality function to handle either value being `undefined`.\n */\nfunction wrapEqualityFn<T>(equal: ValueEqualityFn<T>): ValueEqualityFn<T | undefined> {\n  return (a, b) => (a === undefined || b === undefined ? a === b : equal(a, b));\n}\n\nfunction getLoader<T, R>(options: ResourceOptions<T, R>): ResourceStreamingLoader<T, R> {\n  if (isStreamingResourceOptions(options)) {\n    return options.stream;\n  }\n\n  return async (params) => {\n    try {\n      return signal(\n        {value: await options.loader(params)},\n        ngDevMode ? createDebugNameObject(options.debugName, 'stream') : undefined,\n      );\n    } catch (err) {\n      return signal(\n        {error: encapsulateResourceError(err)},\n        ngDevMode ? createDebugNameObject(options.debugName, 'stream') : undefined,\n      );\n    }\n  };\n}\n\nfunction isStreamingResourceOptions<T, R>(\n  options: ResourceOptions<T, R>,\n): options is StreamingResourceOptions<T, R> {\n  return !!(options as StreamingResourceOptions<T, R>).stream;\n}\n\n/**\n * Project from a state with `ResourceInternalStatus` to the user-facing `ResourceStatus`\n */\nfunction projectStatusOfState(state: ResourceState<unknown>): ResourceStatus {\n  switch (state.status) {\n    case 'loading':\n      return state.extRequest.reload === 0 ? 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Check this error's .cause for the actual error.`\n        : String(error),\n      {cause: error},\n    );\n  }\n}\n\n/**\n * Chains the value of another resource into the params of the current resource, returning the value\n * of the other resource if it is available, or propagating the status to the current resource if it\n * is not.\n */\nexport function chain<T>(resource: Resource<T>): T {\n  switch (resource.status()) {\n    case 'idle':\n      throw ResourceParamsStatus.IDLE;\n    case 'error':\n      throw new ResourceDependencyError(resource);\n    case 'loading':\n    case 'reloading':\n      throw ResourceParamsStatus.LOADING;\n  }\n  return resource.value();\n}\n\nexport const paramsContext: ResourceParamsContext = {\n  chain,\n};\n\nlet inParamsFunction = false;\n\nexport function isInParamsFunction() {\n  return inParamsFunction;\n}\n\nexport function setInParamsFunction(value: boolean) {\n  inParamsFunction = value;\n}\n\nexport function invalidResourceCreationInParams(): 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For example:\n *\n * ```html\n * <my-comp (valueChange)=\"processNewValue($event)\" />\n * ```\n *\n * @see [Custom events with outputs](guide/components/outputs)\n *\n * @publicAPI\n */\nexport class OutputEmitterRef<T> implements OutputRef<T> {\n  private destroyed = false;\n  private listeners: Array<(value: T) => void> | null = null;\n  private errorHandler = inject(ErrorHandler, {optional: true});\n\n  /** @internal */\n  destroyRef: DestroyRef = inject(DestroyRef);\n\n  constructor() {\n    // Clean-up all listeners and mark as destroyed upon destroy.\n    this.destroyRef.onDestroy(() => {\n      this.destroyed = true;\n      this.listeners = null;\n    });\n  }\n\n  subscribe(callback: (value: T) => void): OutputRefSubscription {\n    if (this.destroyed) {\n      throw new RuntimeError(\n        RuntimeErrorCode.OUTPUT_REF_DESTROYED,\n        ngDevMode &&\n          'Unexpected subscription to destroyed `OutputRef`. ' +\n            'The owning directive/component is destroyed.',\n      );\n    }\n\n    (this.listeners ??= []).push(callback);\n\n    return {\n      unsubscribe: () => {\n        const idx = this.listeners?.indexOf(callback);\n        if (idx !== undefined && idx !== -1) {\n          this.listeners?.splice(idx, 1);\n        }\n      },\n    };\n  }\n\n  /** Emits a new value to the output. */\n  emit(value: T): void {\n    if (this.destroyed) {\n      console.warn(\n        formatRuntimeError(\n          RuntimeErrorCode.OUTPUT_REF_DESTROYED,\n          ngDevMode &&\n            'Unexpected emit for destroyed `OutputRef`. ' +\n              'The owning directive/component is destroyed.',\n        ),\n      );\n      return;\n    }\n\n    if (this.listeners === null) {\n      return;\n    }\n\n    const previousConsumer = setActiveConsumer(null);\n    try {\n      for (const listenerFn of this.listeners) {\n        try {\n          listenerFn(value);\n        } catch (err: unknown) {\n          this.errorHandler?.handleError(err);\n        }\n      }\n    } finally {\n      setActiveConsumer(previousConsumer);\n    }\n  }\n}\n\n/** Gets the owning `DestroyRef` for the given output. */\nexport function getOutputDestroyRef(ref: OutputRef<unknown>): DestroyRef | undefined {\n  return ref.destroyRef;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {InjectionToken} from '../di';\n\n/**\n * Token used to the determine if the transfer cache should be used, for example for resources.\n */\nexport const CACHE_ACTIVE = new InjectionToken<{isActive: boolean}>(\n  typeof ngDevMode !== 'undefined' && ngDevMode ? 'STATE_CACHE_ACTIVE' : '',\n);\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {createComputed, SIGNAL} from '../../../primitives/signals';\n\nimport {Signal, ValueEqualityFn} from './api';\n\n/**\n * Options passed to the `computed` creation function.\n */\nexport interface CreateComputedOptions<T> {\n  /**\n   * A comparison function which defines equality for computed values.\n   */\n  equal?: ValueEqualityFn<T>;\n\n  /**\n   * A debug name for the computed signal. Used in Angular DevTools to identify the signal.\n   */\n  debugName?: string;\n}\n\n/**\n * Create a computed `Signal` which derives a reactive value from an expression.\n * @see [Computed signals](guide/signals#computed-signals)\n */\nexport function computed<T>(computation: () => T, options?: CreateComputedOptions<T>): Signal<T> {\n  const getter = createComputed(computation, options?.equal);\n\n  if (typeof ngDevMode !== 'undefined' && ngDevMode) {\n    const debugName = options?.debugName;\n    getter[SIGNAL].debugName = debugName;\n    getter.toString = () => `[Computed${debugName ? ' (' + debugName + ')' : ''}: ${getter()}]`;\n  }\n\n  return getter;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {untracked as untrackedPrimitive} from '../../../primitives/signals';\n\n/**\n * Execute an arbitrary function in a non-reactive (non-tracking) context. The executed function\n * can, optionally, return a value.\n * @see [Reading without tracking dependencies](guide/signals#reading-without-tracking-dependencies)\n */\nexport function untracked<T>(nonReactiveReadsFn: () => T): T {\n  return untrackedPrimitive(nonReactiveReadsFn);\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {Injector} from '../di/injector';\nimport {Signal, ValueEqualityFn} from '../render3/reactivity/api';\nimport {WritableSignal} from '../render3/reactivity/signal';\n\n/** Error thrown when a `Resource` dependency of another resource errors. */\nexport class ResourceDependencyError extends Error {\n  /** The dependency that errored. */\n  readonly dependency: Resource<unknown>;\n\n  constructor(dependency: Resource<unknown>) {\n    super('Dependency error', {cause: dependency.error()});\n    this.name = 'ResourceDependencyError';\n    this.dependency = dependency;\n  }\n}\n\n/**\n * Special status codes that can be thrown from a resource's `params` or `request` function to\n * indicate that the resource should transition to that status.\n */\nexport class ResourceParamsStatus extends Error {\n  private readonly _brand: undefined;\n  private constructor(msg: string) {\n    super(msg);\n  }\n\n  /** Status code that transitions the resource to `idle` status. */\n  static readonly IDLE = new ResourceParamsStatus('IDLE');\n\n  /** Status code that transitions the resource to `loading` status. */\n  static readonly LOADING = new ResourceParamsStatus('LOADING');\n}\n\n/** Context received by a resource's `params` or `request` function. */\nexport interface ResourceParamsContext {\n  /**\n   * Chains the current params off of the value of another resource, returning the value\n   * of the other resource if it is available, or propagating the status to the current resource by\n   * throwing the appropriate status code if the value is not available.\n   */\n  readonly chain: <T>(resource: Resource<T>) => T;\n}\n\n/**\n * String value capturing the status of a `Resource`.\n *\n * Possible statuses are:\n *\n * `idle` - The resource has no valid request and will not perform any loading. `value()` will be\n * `undefined`.\n *\n * `loading` - The resource is currently loading a new value as a result of a change in its reactive\n * dependencies. `value()` will be `undefined`.\n *\n * `reloading` - The resource is currently reloading a fresh value for the same reactive\n * dependencies. `value()` will continue to return the previously fetched value during the reloading\n * operation.\n *\n * `error` - Loading failed with an error. `value()` will be `undefined`.\n *\n * `resolved` - Loading has completed and the resource has the value returned from the loader.\n *\n * `local` - The resource's value was set locally via `.set()` or `.update()`.\n *\n * @publicApi 22.0\n */\nexport type ResourceStatus = 'idle' | 'error' | 'loading' | 'reloading' | 'resolved' | 'local';\n\n/**\n * A Resource is an asynchronous dependency (for example, the results of an API call) that is\n * managed and delivered through signals.\n *\n * The usual way of creating a `Resource` is through the `resource` function, but various other APIs\n * may present `Resource` instances to describe their own concepts.\n *\n * @publicApi 22.0\n */\nexport interface Resource<T> {\n  /**\n   * The current value of the `Resource`, or throws an error if the resource is in an error state.\n   */\n  readonly value: Signal<T>;\n\n  /**\n   * The current status of the `Resource`, which describes what the resource is currently doing and\n   * what can be expected of its `value`.\n   */\n  readonly status: Signal<ResourceStatus>;\n\n  /**\n   * When in the `error` state, this returns the last known error from the `Resource`.\n   */\n  readonly error: Signal<Error | undefined>;\n\n  /**\n   * Whether this resource is loading a new value (or reloading the existing one).\n   */\n  readonly isLoading: Signal<boolean>;\n\n  /**\n   * The current state of this resource, represented as a `ResourceSnapshot`.\n   */\n  readonly snapshot: Signal<ResourceSnapshot<T>>;\n\n  /**\n   * Whether this resource has a valid current value.\n   *\n   * This function is reactive.\n   */\n  hasValue(this: T extends undefined ? this : never): this is Resource<Exclude<T, undefined>>;\n\n  hasValue(): boolean;\n}\n\n/**\n * A `Resource` with a mutable value.\n *\n * Overwriting the value of a resource sets it to the 'local' state.\n *\n * @publicApi 22.0\n */\nexport interface WritableResource<T> extends Resource<T> {\n  readonly value: WritableSignal<T>;\n  hasValue(\n    this: T extends undefined ? this : never,\n  ): this is WritableResource<Exclude<T, undefined>>;\n\n  hasValue(): boolean;\n\n  /**\n   * Convenience wrapper for `value.set`.\n   */\n  set(value: T): void;\n\n  /**\n   * Convenience wrapper for `value.update`.\n   */\n  update(updater: (value: T) => T): void;\n  asReadonly(): Resource<T>;\n\n  /**\n   * Instructs the resource to re-load any asynchronous dependency it may have.\n   *\n   * Note that the resource will not enter its reloading state until the actual backend request is\n   * made.\n   *\n   * @returns true if a reload was initiated, false if a reload was unnecessary or unsupported\n   */\n  reload(): boolean;\n}\n\n/**\n * A `WritableResource` created through the `resource` function.\n *\n * @publicApi 22.0\n */\nexport interface ResourceRef<T> extends WritableResource<T> {\n  hasValue(this: T extends undefined ? this : never): this is ResourceRef<Exclude<T, undefined>>;\n\n  hasValue(): boolean;\n  /**\n   * Manually destroy the resource, which cancels pending requests and returns it to `idle` state.\n   */\n  destroy(): void;\n}\n\n/**\n * Parameter to a `ResourceLoader` which gives the request and other options for the current loading\n * operation.\n *\n * @publicApi 22.0\n */\nexport interface ResourceLoaderParams<R> {\n  params: NoInfer<Exclude<R, undefined>>;\n  abortSignal: AbortSignal;\n  previous: {\n    status: ResourceStatus;\n  };\n}\n\n/**\n * Loading function for a `Resource`.\n *\n * @publicApi 22.0\n */\nexport type ResourceLoader<T, R> = (param: ResourceLoaderParams<R>) => PromiseLike<T>;\n\n/**\n * Streaming loader for a `Resource`.\n *\n * @publicApi 22.0\n */\nexport type ResourceStreamingLoader<T, R> = (\n  param: ResourceLoaderParams<R>,\n) => Signal<ResourceStreamItem<T>> | PromiseLike<Signal<ResourceStreamItem<T>>> | undefined;\n\n/**\n * Options to the `resource` function, for creating a resource.\n *\n * @publicApi 22.0\n */\nexport interface BaseResourceOptions<T, R> {\n  /**\n   * A reactive function which determines the request to be made. Whenever the request changes, the\n   * loader will be triggered to fetch a new value for the resource.\n   *\n   * If a params function isn't provided, the loader won't rerun unless the resource is reloaded.\n   */\n  params?: (ctx: ResourceParamsContext) => R;\n\n  /**\n   * The value which will be returned from the resource when a server value is unavailable, such as\n   * when the resource is still loading.\n   */\n  defaultValue?: NoInfer<T>;\n\n  /**\n   * Equality function used to compare the return value of the loader.\n   */\n  equal?: ValueEqualityFn<T>;\n\n  /**\n   * Overrides the `Injector` used by `resource`.\n   */\n  injector?: Injector;\n\n  /**\n   * Identifier used to cache the resource data in the `TransferState` during server-side rendering and to retrieve it on the client side.\n   * This value value needs to be identical for both the client and server.\n   */\n  id?: string;\n}\n\n/**\n * Options to the `resource` function, for creating a resource.\n *\n * @publicApi 22.0\n */\nexport interface PromiseResourceOptions<T, R> extends BaseResourceOptions<T, R> {\n  /**\n   * Loading function which returns a `Promise` of the resource's value for a given request.\n   */\n  loader: ResourceLoader<T, R>;\n\n  /**\n   * Cannot specify `stream` and `loader` at the same time.\n   */\n  stream?: never;\n}\n\n/**\n * Options to the `resource` function, for creating a resource.\n *\n * @publicApi 22.0\n */\nexport interface StreamingResourceOptions<T, R> extends BaseResourceOptions<T, R> {\n  /**\n   * Loading function which returns a `Promise` of a signal of the resource's value for a given\n   * request, which can change over time as new values are received from a stream.\n   */\n  stream: ResourceStreamingLoader<T, R>;\n\n  /**\n   * Cannot specify `stream` and `loader` at the same time.\n   */\n  loader?: never;\n}\n\n/**\n * @publicApi 22.0\n */\nexport type ResourceOptions<T, R> = (\n  | PromiseResourceOptions<T, R>\n  | StreamingResourceOptions<T, R>\n) & {\n  /**\n   * A debug name for the reactive node. Used in Angular DevTools to identify the node.\n   */\n  debugName?: string;\n};\n\n/**\n * @publicApi 22.0\n */\nexport type ResourceStreamItem<T> = {value: T} | {error: Error};\n\n/**\n * An explicit representation of a resource's state.\n *\n * @publicApi 22.0\n * @see [Resource composition with snapshots](guide/signals/resource#resource-composition-with-snapshots)\n */\nexport type ResourceSnapshot<T> =\n  | {readonly status: 'idle'; readonly value: T}\n  | {readonly status: 'loading' | 'reloading'; readonly value: T}\n  | {readonly status: 'resolved' | 'local'; readonly value: T}\n  | {readonly status: 'error'; readonly error: Error};\n\n/**\n * Options for `debounced`.\n *\n * @see [Debouncing signals with `debounced`](guide/signals/debounced)\n *\n * @experimental 22.0\n */\nexport interface DebouncedOptions<T> {\n  /** The `Injector` to use for the debounced resource. */\n  injector?: Injector;\n  /** The equality function to use for comparing values. */\n  equal?: ValueEqualityFn<T>;\n}\n\n/**\n * Represents the wait condition for item debouncing.\n * Can be a number of milliseconds or a function that returns a Promise.\n *\n * @see [Debouncing signals with `debounced`](guide/signals/debounced)\n *\n * @experimental 22.0\n */\nexport type DebounceTimer<T> =\n  | number\n  | ((value: T, lastValue: ResourceSnapshot<T>) => Promise<void> | void);\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {\n  ComputationFn,\n  createLinkedSignal,\n  LinkedSignalGetter,\n  LinkedSignalNode,\n  linkedSignalSetFn,\n  linkedSignalUpdateFn,\n  SIGNAL,\n} from '../../../primitives/signals';\nimport {Signal, ValueEqualityFn} from './api';\nimport {signalAsReadonlyFn, WritableSignal} from './signal';\n\nconst identityFn = <T>(v: T) => v;\n\n/**\n * Creates a writable signal whose value is initialized and reset by the linked, reactive computation.\n *\n * @publicApi 20.0\n */\nexport function linkedSignal<D>(\n  computation: () => D,\n  options?: {equal?: ValueEqualityFn<NoInfer<D>>; debugName?: string},\n): WritableSignal<D>;\n\n/**\n * Creates a writable signal whose value is initialized and reset by the linked, reactive computation.\n * This is an advanced API form where the computation has access to the previous value of the signal and the computation result.\n *\n * Note: The computation is reactive, meaning the linked signal will automatically update whenever any of the signals used within the computation change.\n *\n * @publicApi 20.0\n * @see [Dependent state with linkedSignal](guide/signals/linked-signal)\n */\nexport function linkedSignal<S, D>(options: {\n  source: () => S;\n  computation: (source: NoInfer<S>, previous?: {source: NoInfer<S>; value: NoInfer<D>}) => D;\n  equal?: ValueEqualityFn<NoInfer<D>>;\n  debugName?: string;\n}): WritableSignal<D>;\n\nexport function linkedSignal<S, D>(\n  optionsOrComputation:\n    | {\n        source: () => S;\n        computation: ComputationFn<S, D>;\n        equal?: ValueEqualityFn<D>;\n        debugName?: string;\n      }\n    | (() => D),\n  options?: {equal?: ValueEqualityFn<D>; debugName?: string},\n): WritableSignal<D> {\n  if (typeof optionsOrComputation === 'function') {\n    const getter = createLinkedSignal<D, D>(\n      optionsOrComputation,\n      identityFn<D>,\n      options?.equal,\n    ) as LinkedSignalGetter<D, D> & WritableSignal<D>;\n    return upgradeLinkedSignalGetter(getter, options?.debugName);\n  } else {\n    const getter = createLinkedSignal<S, D>(\n      optionsOrComputation.source,\n      optionsOrComputation.computation,\n      optionsOrComputation.equal,\n    );\n    return upgradeLinkedSignalGetter(getter, optionsOrComputation.debugName);\n  }\n}\n\nfunction upgradeLinkedSignalGetter<S, D>(\n  getter: LinkedSignalGetter<S, D>,\n  debugName?: string,\n): WritableSignal<D> {\n  if (typeof ngDevMode !== 'undefined' && ngDevMode) {\n    getter[SIGNAL].debugName = debugName;\n    getter.toString = () => `[LinkedSignal${debugName ? ' (' + debugName + ')' : ''}: ${getter()}]`;\n  }\n\n  const node = getter[SIGNAL] as LinkedSignalNode<S, D>;\n  const upgradedGetter = getter as LinkedSignalGetter<S, D> & WritableSignal<D>;\n\n  upgradedGetter.set = (newValue: D) => linkedSignalSetFn(node, newValue);\n  upgradedGetter.update = (updateFn: (value: D) => D) => linkedSignalUpdateFn(node, updateFn);\n  upgradedGetter.asReadonly = signalAsReadonlyFn.bind(getter as any) as () => Signal<D>;\n\n  return upgradedGetter;\n}\n","/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.dev/license\n */\n\nimport {isSignal, Signal, ValueEqualityFn} from '../render3/reactivity/api';\nimport {computed} from '../render3/reactivity/computed';\nimport {effect, EffectRef} from '../render3/reactivity/effect';\nimport {signal, signalAsReadonlyFn, WritableSignal} from '../render3/reactivity/signal';\nimport {untracked} from '../render3/reactivity/untracked';\nimport {\n  Resource,\n  ResourceDependencyError,\n  ResourceOptions,\n  ResourceParamsStatus,\n  ResourceSnapshot,\n  ResourceStatus,\n  ResourceStreamingLoader,\n  ResourceStreamItem,\n  StreamingResourceOptions,\n  type ResourceParamsContext,\n  type ResourceRef,\n  type WritableResource,\n} from './api';\n\nimport {assertInInjectionContext} from '../di/contextual';\nimport {Injector} from '../di/injector';\nimport {inject} from '../di/injector_compatibility';\nimport {RuntimeError, RuntimeErrorCode} from '../errors';\nimport {CACHE_ACTIVE} from '../hydration/cache';\nimport {DestroyRef} from '../linker/destroy_ref';\nimport {PendingTasks} from '../pending_tasks';\nimport {linkedSignal} from '../render3/reactivity/linked_signal';\nimport {StateKey, TransferState} from '../transfer_state';\n\n/**\n * Constructs a `Resource` that projects a reactive request to an asynchronous operation defined by\n * a loader function, which exposes the result of the loading operation via signals.\n *\n * Note that `resource` is intended for _read_ operations, not operations which perform mutations.\n * `resource` will cancel in-progress loads via the `AbortSignal` when destroyed or when a new\n * request object becomes available, which could prematurely abort mutations.\n *\n * @see [Async reactivity with resources](guide/signals/resource)\n *\n * @publicApi 22.0\n */\nexport function resource<T, R>(\n  options: ResourceOptions<T, R> & {defaultValue: NoInfer<T>},\n): ResourceRef<T>;\n\n/**\n * Constructs a `Resource` that projects a reactive request to an asynchronous operation defined by\n * a loader function, which exposes the result of the loading operation via signals.\n *\n * Note that `resource` is intended for _read_ operations, not operations which perform mutations.\n * `resource` will cancel in-progress loads via the `AbortSignal` when destroyed or when a new\n * request object becomes available, which could prematurely abort mutations.\n *\n * @publicApi 22.0\n * @see [Async reactivity with resources](guide/signals/resource)\n */\nexport function resource<T, R>(options: ResourceOptions<T, R>): ResourceRef<T | undefined>;\nexport function resource<T, R>(options: ResourceOptions<T, R>): ResourceRef<T | undefined> {\n  if (ngDevMode && !options?.injector) {\n    assertInInjectionContext(resource);\n  }\n\n  const oldNameForParams = (\n    options as ResourceOptions<T, R> & {request: ResourceOptions<T, R>['params']}\n  ).request;\n  const params = options.params ?? oldNameForParams ?? (() => null!);\n  return new ResourceImpl<T | undefined, R>(\n    params,\n    getLoader(options),\n    options.defaultValue,\n    options.equal ? wrapEqualityFn(options.equal) : undefined,\n    options.debugName,\n    options.injector ?? inject(Injector),\n    options.id as StateKey<T>,\n  );\n}\n\ntype ResourceInternalStatus = 'idle' | 'loading' | 'resolved' | 'local';\n\n/**\n * Internal state of a resource.\n */\ninterface ResourceProtoState<T> {\n  extRequest: WrappedRequest;\n\n  // For simplicity, status is internally tracked as a subset of the public status enum.\n  // Reloading and Error statuses are projected from Loading and Resolved based on other state.\n  status: ResourceInternalStatus;\n}\n\ninterface ResourceState<T> extends ResourceProtoState<T> {\n  previousStatus: ResourceStatus;\n  stream: Signal<ResourceStreamItem<T>> | undefined;\n}\n\ntype WrappedRequest = {\n  request?: unknown;\n  reload: number;\n  status?: ResourceInternalStatus;\n  error?: Error;\n};\n\n/**\n * Base class which implements `.value` as a `WritableSignal` by delegating `.set` and `.update`.\n */\nabstract class BaseWritableResource<T> implements WritableResource<T> {\n  readonly value: WritableSignal<T>;\n  abstract readonly status: Signal<ResourceStatus>;\n  abstract readonly error: Signal<Error | undefined>;\n\n  abstract reload(): boolean;\n\n  readonly isLoading: Signal<boolean>;\n\n  constructor(value: Signal<T>, debugName: string | undefined) {\n    this.value = value as WritableSignal<T>;\n    this.value.set = this.set.bind(this);\n    this.value.update = this.update.bind(this);\n    this.value.asReadonly = signalAsReadonlyFn;\n\n    this.isLoading = computed(\n      () => this.status() === 'loading' || this.status() === 'reloading',\n      ngDevMode ? createDebugNameObject(debugName, 'isLoading') : undefined,\n    );\n  }\n\n  abstract set(value: T): void;\n\n  private readonly isError = computed(() => this.status() === 'error');\n\n  update(updateFn: (value: T) => T): void {\n    this.set(updateFn(untracked(this.value)));\n  }\n\n  // Use a computed here to avoid triggering reactive consumers if the value changes while staying\n  // either defined or undefined.\n  private readonly isValueDefined = computed(() => {\n    // Check if it's in an error state first to prevent the error from bubbling up.\n    if (this.isError()) {\n      return false;\n    }\n\n    return this.value() !== undefined;\n  });\n\n  private _snapshot: Signal<ResourceSnapshot<T>> | undefined;\n  get snapshot(): Signal<ResourceSnapshot<T>> {\n    return (this._snapshot ??= computed(() => {\n      const status = this.status();\n      if (status === 'error') {\n        return {status: 'error', error: this.error()!};\n      } else {\n        return {status, value: this.value()};\n      }\n    }));\n  }\n\n  hasValue(): this is ResourceRef<Exclude<T, undefined>> {\n    return this.isValueDefined();\n  }\n\n  asReadonly(): Resource<T> {\n    return this;\n  }\n}\n\n/**\n * Implementation for `resource()` which uses a `linkedSignal` to manage the resource's state.\n */\nexport class ResourceImpl<T, R> extends BaseWritableResource<T> implements ResourceRef<T> {\n  private readonly pendingTasks: PendingTasks;\n\n  /**\n   * The current state of the resource. Status, value, and error are derived from this.\n   */\n  private readonly state: WritableSignal<ResourceState<T>>;\n\n  /**\n   * Combines the current request with a reload counter which allows the resource to be reloaded on\n   * imperative command.\n   */\n  protected readonly extRequest: WritableSignal<WrappedRequest>;\n  private readonly effectRef: EffectRef;\n\n  private pendingController: AbortController | undefined;\n  private resolvePendingTask: (() => void) | undefined = undefined;\n  private destroyed = false;\n  private unregisterOnDestroy: () => void;\n\n  override readonly status: Signal<ResourceStatus>;\n  override readonly error: Signal<Error | undefined>;\n  private readonly transferState: TransferState | undefined;\n\n  constructor(\n    request: (ctx: ResourceParamsContext) => R,\n    private readonly loaderFn: ResourceStreamingLoader<T, R>,\n    defaultValue: T,\n    private readonly equal: ValueEqualityFn<T> | undefined,\n    private readonly debugName: string | undefined,\n    injector: Injector,\n    private transferCacheKey: StateKey<T> | undefined,\n    getInitialStream?: (request: R) => Signal<ResourceStreamItem<T>> | undefined,\n  ) {\n    if (isInParamsFunction()) {\n      throw invalidResourceCreationInParams();\n    }\n\n    super(\n      // Feed a computed signal for the value to `BaseWritableResource`, which will upgrade it to a\n      // `WritableSignal` that delegates to `ResourceImpl.set`.\n      computed(\n        () => {\n          const streamValue = this.state().stream?.();\n\n          if (!streamValue) {\n            return defaultValue;\n          }\n\n          // Prevents `hasValue()` from throwing an error when a reload happened in the error state\n          if (this.state().status === 'loading' && this.error()) {\n            return defaultValue;\n          }\n\n          if (!isResolved(streamValue)) {\n            throw new ResourceValueError(this.error()!);\n          }\n\n          return streamValue.value;\n        },\n        {equal, ...(ngDevMode ? createDebugNameObject(debugName, 'value') : undefined)},\n      ),\n      debugName,\n    );\n\n    const cacheState = injector.get(CACHE_ACTIVE, undefined, {optional: true}) ?? {isActive: false};\n\n    this.transferState = injector.get(TransferState, undefined, {optional: true}) ?? undefined;\n\n    this.extRequest = linkedSignal<WrappedRequest>(\n      () => {\n        try {\n          setInParamsFunction(true);\n          return {request: request(paramsContext), reload: 0};\n        } catch (error) {\n          rethrowFatalErrors(error);\n          if (error === ResourceParamsStatus.IDLE) {\n            return {status: 'idle', reload: 0};\n          } else if (error === ResourceParamsStatus.LOADING) {\n            return {status: 'loading', reload: 0};\n          }\n          return {error: error as Error, reload: 0};\n        } finally {\n          setInParamsFunction(false);\n        }\n      },\n      ngDevMode ? createDebugNameObject(debugName, 'extRequest') : undefined,\n    );\n\n    // The main resource state is managed in a `linkedSignal`, which allows the resource to change\n    // state instantaneously when the request signal changes.\n    this.state = linkedSignal<WrappedRequest, ResourceState<T>>({\n      // Whenever the request changes,\n      source: this.extRequest,\n      // Compute the state of the resource given a change in status.\n      computation: (extRequest, previous) => {\n        let {request, status, error} = extRequest;\n        let stream: Signal<ResourceStreamItem<T>> | undefined;\n\n        if (error) {\n          status = 'resolved';\n          stream = signal(\n            {error: encapsulateResourceError(error)},\n            ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n          );\n        } else if (!status) {\n          if (!previous) {\n            const transferState = this.transferState;\n            const cacheKey = this.transferCacheKey;\n            if (cacheState.isActive && cacheKey && transferState && request !== undefined) {\n              const key = this.transferCacheKey;\n              if (transferState.hasKey(cacheKey)) {\n                stream = signal(\n                  {value: transferState.get(cacheKey, defaultValue)},\n                  ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n                );\n              }\n            }\n\n            if (!stream) {\n              stream = getInitialStream?.(extRequest.request as R);\n            }\n            // Clear getInitialStream so it doesn't hold onto memory\n            getInitialStream = undefined;\n            status = request === undefined ? 'idle' : stream ? 'resolved' : 'loading';\n          } else {\n            status = request === undefined ? 'idle' : 'loading';\n            if (previous.value.extRequest.request === request) {\n              stream = previous.value.stream;\n            }\n          }\n        }\n\n        return {\n          extRequest,\n          status,\n          previousStatus: previous ? projectStatusOfState(previous.value) : 'idle',\n          stream,\n        };\n      },\n      ...(ngDevMode ? createDebugNameObject(debugName, 'state') : undefined),\n    });\n\n    this.effectRef = effect(this.loadEffect.bind(this), {\n      injector,\n      manualCleanup: true,\n      ...(ngDevMode ? createDebugNameObject(debugName, 'loadEffect') : undefined),\n    });\n\n    this.pendingTasks = injector.get(PendingTasks);\n\n    // Cancel any pending request when the resource itself is destroyed.\n    this.unregisterOnDestroy = injector.get(DestroyRef).onDestroy(() => this.destroy());\n\n    this.status = computed(\n      () => projectStatusOfState(this.state()),\n      ngDevMode ? createDebugNameObject(debugName, 'status') : undefined,\n    );\n\n    this.error = computed(\n      () => {\n        const stream = this.state().stream?.();\n        return stream && !isResolved(stream) ? stream.error : undefined;\n      },\n      ngDevMode ? createDebugNameObject(debugName, 'error') : undefined,\n    );\n  }\n\n  /**\n   * Called either directly via `WritableResource.set` or via `.value.set()`.\n   */\n  override set(value: T): void {\n    if (this.destroyed) {\n      return;\n    }\n\n    const error = untracked(this.error);\n    const state = untracked(this.state);\n\n    if (!error) {\n      const current = untracked(this.value);\n      if (\n        state.status === 'local' &&\n        (this.equal ? this.equal(current, value) : current === value)\n      ) {\n        return;\n      }\n    }\n\n    // Enter Local state with the user-defined value.\n    this.state.set({\n      extRequest: state.extRequest,\n      status: 'local',\n      previousStatus: 'local',\n      stream: signal(\n        {value},\n        ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n      ),\n    });\n\n    // We're departing from whatever state the resource was in previously, so cancel any in-progress\n    // loading operations.\n    this.abortInProgressLoad();\n  }\n\n  override reload(): boolean {\n    // We don't want to restart in-progress loads.\n    const {status} = untracked(this.state);\n    if (status === 'idle' || status === 'loading') {\n      return false;\n    }\n\n    // Increment the request reload to trigger the `state` linked signal to switch us to `Reload`\n    this.extRequest.update(({request, reload}) => ({request, reload: reload + 1}));\n    return true;\n  }\n\n  destroy(): void {\n    this.destroyed = true;\n    this.unregisterOnDestroy();\n    this.effectRef.destroy();\n    this.abortInProgressLoad();\n\n    // Destroyed resources enter Idle state.\n    this.state.set({\n      extRequest: {request: undefined, reload: 0},\n      status: 'idle',\n      previousStatus: 'idle',\n      stream: undefined,\n    });\n  }\n\n  private async loadEffect(): Promise<void> {\n    const extRequest = this.extRequest();\n\n    // Capture the previous status before any state transitions. Note that this is `untracked` since\n    // we do not want the effect to depend on the state of the resource, only on the request.\n    const {status: currentStatus, previousStatus} = untracked(this.state);\n\n    if (extRequest.request === undefined) {\n      // Nothing to load (and we should already be in a non-loading state).\n      return;\n    } else if (currentStatus !== 'loading') {\n      // We're not in a loading or reloading state, so this loading request is stale.\n      return;\n    }\n\n    // Cancel any previous loading attempts.\n    this.abortInProgressLoad();\n\n    // Capturing _this_ load's pending task in a local variable is important here. We may attempt to\n    // resolve it twice:\n    //\n    //  1. when the loading function promise resolves/rejects\n    //  2. when cancelling the loading operation\n    //\n    // After the loading operation is cancelled, `this.resolvePendingTask` no longer represents this\n    // particular task, but this `await` may eventually resolve/reject. Thus, when we cancel in\n    // response to (1) below, we need to cancel the locally saved task.\n    let resolvePendingTask: (() => void) | undefined = (this.resolvePendingTask =\n      this.pendingTasks.add());\n\n    const {signal: abortSignal} = (this.pendingController = new AbortController());\n\n    try {\n      // The actual loading is run through `untracked` - only the request side of `resource` is\n      // reactive. This avoids any confusion with signals tracking or not tracking depending on\n      // which side of the `await` they are.\n      const stream = untracked(() => {\n        return this.loaderFn({\n          params: extRequest.request as Exclude<R, undefined>,\n          abortSignal,\n          previous: {\n            status: previousStatus,\n          },\n        });\n      });\n\n      // If this request has been aborted, or the current request no longer\n      // matches this load, then we should ignore this resolution.\n      const shouldDiscard = () => abortSignal.aborted || untracked(this.extRequest) !== extRequest;\n\n      if (isSignal(stream)) {\n        if (shouldDiscard()) {\n          return;\n        }\n\n        this.state.set({\n          extRequest,\n          status: 'resolved',\n          previousStatus: 'resolved',\n          stream,\n        });\n\n        const result = untracked(stream);\n        if (typeof ngServerMode !== 'undefined' && ngServerMode) {\n          saveToTransferState(result, this.transferCacheKey, this.transferState);\n        }\n      } else {\n        const resolvedStream = await stream;\n        if (shouldDiscard()) {\n          return;\n        }\n\n        this.state.set({\n          extRequest,\n          status: 'resolved',\n          previousStatus: 'resolved',\n          stream: resolvedStream,\n        });\n\n        // Use a local variable for the result so TypeScript can narrow `resolvedStream` correctly.\n        const result = resolvedStream ? untracked(resolvedStream) : undefined;\n        if (typeof ngServerMode !== 'undefined' && ngServerMode) {\n          saveToTransferState(result, this.transferCacheKey, this.transferState);\n        }\n      }\n    } catch (err) {\n      rethrowFatalErrors(err);\n      if (abortSignal.aborted || untracked(this.extRequest) !== extRequest) {\n        return;\n      }\n\n      this.state.set({\n        extRequest,\n        status: 'resolved',\n        previousStatus: 'error',\n        stream: signal(\n          {error: encapsulateResourceError(err)},\n          ngDevMode ? createDebugNameObject(this.debugName, 'stream') : undefined,\n        ),\n      });\n    } finally {\n      // Resolve the pending task now that the resource has a value.\n      resolvePendingTask?.();\n      resolvePendingTask = undefined;\n    }\n  }\n\n  private abortInProgressLoad(): void {\n    untracked(() => this.pendingController?.abort());\n    this.pendingController = undefined;\n\n    // Once the load is aborted, we no longer want to block stability on its resolution.\n    this.resolvePendingTask?.();\n    this.resolvePendingTask = undefined;\n  }\n}\n\nfunction saveToTransferState<R, T>(\n  result: ResourceStreamItem<T> | undefined,\n  transferCacheKey: StateKey<T> | undefined,\n  transferState: TransferState | undefined,\n): void {\n  if (transferCacheKey && transferState && result && isResolved(result)) {\n    transferState.set(transferCacheKey, result.value);\n  }\n}\n\n/**\n * Wraps an equality function to handle either value being `undefined`.\n */\nfunction wrapEqualityFn<T>(equal: ValueEqualityFn<T>): ValueEqualityFn<T | undefined> {\n  return (a, b) => (a === undefined || b === undefined ? a === b : equal(a, b));\n}\n\nfunction getLoader<T, R>(options: ResourceOptions<T, R>): ResourceStreamingLoader<T, R> {\n  if (isStreamingResourceOptions(options)) {\n    return options.stream;\n  }\n\n  return async (params) => {\n    try {\n      return signal(\n        {value: await options.loader(params)},\n        ngDevMode ? createDebugNameObject(options.debugName, 'stream') : undefined,\n      );\n    } catch (err) {\n      return signal(\n        {error: encapsulateResourceError(err)},\n        ngDevMode ? createDebugNameObject(options.debugName, 'stream') : undefined,\n      );\n    }\n  };\n}\n\nfunction isStreamingResourceOptions<T, R>(\n  options: ResourceOptions<T, R>,\n): options is StreamingResourceOptions<T, R> {\n  return !!(options as StreamingResourceOptions<T, R>).stream;\n}\n\n/**\n * Project from a state with `ResourceInternalStatus` to the user-facing `ResourceStatus`\n */\nfunction projectStatusOfState(state: ResourceState<unknown>): ResourceStatus {\n  switch (state.status) {\n    case 'loading':\n      return state.extRequest.reload === 0 ? 'loading' : 'reloading';\n    case 'resolved':\n      return isResolved(state.stream!()) ? 'resolved' : 'error';\n    default:\n      return state.status;\n  }\n}\n\nfunction isResolved<T>(state: ResourceStreamItem<T>): state is {value: T} {\n  return (state as {error: unknown}).error === undefined;\n}\n\n/**\n * Creates a debug name object for an internal signal.\n */\nfunction createDebugNameObject(\n  resourceDebugName: string | undefined,\n  internalSignalDebugName: string,\n): {debugName?: string} {\n  return {\n    debugName: `Resource${resourceDebugName ? '#' + resourceDebugName : ''}.${internalSignalDebugName}`,\n  };\n}\n\nexport function encapsulateResourceError(error: unknown): Error {\n  if (isErrorLike(error)) {\n    return error;\n  }\n\n  return new ResourceWrappedError(error);\n}\n\nexport function isErrorLike(error: unknown): error is Error {\n  return (\n    error instanceof Error ||\n    (typeof error === 'object' &&\n      typeof (error as Error).name === 'string' &&\n      typeof (error as Error).message === 'string')\n  );\n}\n\nexport class ResourceValueError extends Error {\n  constructor(error: Error) {\n    super(\n      ngDevMode\n        ? `Resource is currently in an error state (see Error.cause for details): ${error.message}`\n        : error.message,\n      {cause: error},\n    );\n  }\n}\n\nclass ResourceWrappedError extends Error {\n  constructor(error: unknown) {\n    super(\n      ngDevMode\n        ? `Resource returned an error that's not an Error instance: ${String(error)}. Check this error's .cause for the actual error.`\n        : String(error),\n      {cause: error},\n    );\n  }\n}\n\n/**\n * Chains the value of another resource into the params of the current resource, returning the value\n * of the other resource if it is available, or propagating the status to the current resource if it\n * is not.\n */\nexport function chain<T>(resource: Resource<T>): T {\n  switch (resource.status()) {\n    case 'idle':\n      throw ResourceParamsStatus.IDLE;\n    case 'error':\n      throw new ResourceDependencyError(resource);\n    case 'loading':\n    case 'reloading':\n      throw ResourceParamsStatus.LOADING;\n  }\n  return resource.value();\n}\n\nexport const paramsContext: ResourceParamsContext = {\n  chain,\n};\n\nlet inParamsFunction = false;\n\nexport function isInParamsFunction() {\n  return inParamsFunction;\n}\n\nexport function setInParamsFunction(value: boolean) {\n  inParamsFunction = value;\n}\n\nexport function invalidResourceCreationInParams(): Error {\n  return new RuntimeError(\n    RuntimeErrorCode.INVALID_RESOURCE_CREATION_IN_PARAMS,\n    ngDevMode && `Cannot create a resource inside the \\`params\\` of another resource`,\n  );\n}\n\nexport function rethrowFatalErrors(error: unknown) {\n  if (\n    error instanceof RuntimeError &&\n    error.code === RuntimeErrorCode.INVALID_RESOURCE_CREATION_IN_PARAMS\n  ) {\n    throw error;\n  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fesm2022/_untracked-chunk.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/_weak_ref-chunk.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/primitives-di.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/primitives-event-dispatch.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/primitives-signals.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

fesm2022/rxjs-interop.mjs

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

package.json

 {
   "name": "@angular/core",
-  "version": "22.0.0-next.12",
+  "version": "22.0.0-rc.0",
   "description": "Angular - the core framework",
@@ -53,3 +53,3 @@ "author": "angular",
   "peerDependencies": {
-    "@angular/compiler": "22.0.0-next.12",
+    "@angular/compiler": "22.0.0-rc.0",
     "rxjs": "^6.5.3 || ^7.4.0",
@@ -56,0 +56,0 @@ "zone.js": "~0.15.0 || ~0.16.0"

schematics/bundles/apply_import_manager-CxA_YYgB.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/can-match-snapshot-required.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/change-detection-eager.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/cleanup-unused-imports.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/common-to-standalone-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/compiler_host-CY14HvaP.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/http-xhr-backend.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/imports-CKV-ITqD.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/incremental-hydration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/inject-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/leading_space-BTPRV0wu.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/model-output.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/ng_component_template-DPAF1aEA.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/ng_decorators-IVztR9rk.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/ngclass-to-class-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/ngstyle-to-style-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/nodes-ZSQ7WZRB.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/output-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -16,3 +16,3 @@ * License: MIT
 var apply_import_manager = require('./apply_import_manager-CxA_YYgB.cjs');
-var index = require('./index-DcezkXLN.cjs');
+var index = require('./index-DxFMpcXS.cjs');
 require('@angular-devkit/core');
@@ -19,0 +19,0 @@ require('node:path/posix');

schematics/bundles/parse_html-C8eKA9px.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/project_paths-D2V-Uh2L.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/project_tsconfig_paths-DkkMibv-.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/property_name-BCpALNpZ.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/route-lazy-loading.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/router-testing-module-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/safe-optional-chaining.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -522,3 +522,3 @@ * License: MIT
         block.expression.visit(this.exprMigrator, false);
-        block.trackBy.visit(this.exprMigrator, false);
+        block.trackBy?.visit(this.exprMigrator, false);
         super.visitForLoopBlock(block);
@@ -525,0 +525,0 @@ }

schematics/bundles/self-closing-tags-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/signal-queries-migration.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -15,5 +15,5 @@ * License: MIT
 var apply_import_manager = require('./apply_import_manager-CxA_YYgB.cjs');
-var migrate_ts_type_references = require('./migrate_ts_type_references-xRTTASnu.cjs');
+var migrate_ts_type_references = require('./migrate_ts_type_references-DMv-GSuu.cjs');
 var assert = require('assert');
-var index = require('./index-DcezkXLN.cjs');
+var index = require('./index-DxFMpcXS.cjs');
 var compiler = require('@angular/compiler');
@@ -20,0 +20,0 @@ require('@angular-devkit/core');

schematics/bundles/signals.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -22,5 +22,5 @@ * License: MIT
 require('./apply_import_manager-CxA_YYgB.cjs');
-require('./migrate_ts_type_references-xRTTASnu.cjs');
+require('./migrate_ts_type_references-DMv-GSuu.cjs');
 require('assert');
-require('./index-DcezkXLN.cjs');
+require('./index-DxFMpcXS.cjs');
 require('@angular/compiler');
@@ -27,0 +27,0 @@ require('./leading_space-BTPRV0wu.cjs');

schematics/bundles/strict-safe-navigation-narrow.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

schematics/bundles/strict-templates-default.cjs

 'use strict';
 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -5,0 +5,0 @@ * License: MIT

types/_api-chunk.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/_chrome_dev_tools_performance-chunk.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/_effect-chunk.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/_event_dispatcher-chunk.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/_formatter-chunk.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/_weak_ref-chunk.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/primitives-di.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/primitives-event-dispatch.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/primitives-signals.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/rxjs-interop.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

types/testing.d.ts

 /**
- * @license Angular v22.0.0-next.12
+ * @license Angular v22.0.0-rc.0
  * (c) 2010-2026 Google LLC. https://angular.dev/
@@ -4,0 +4,0 @@ * License: MIT

schematics/bundles/index-DcezkXLN.cjs

-'use strict';
-/**
- * @license Angular v22.0.0-next.12
- * (c) 2010-2026 Google LLC. https://angular.dev/
- * License: MIT
- */
-'use strict';
-
-var ts = require('typescript');
-var compilerCli = require('@angular/compiler-cli');
-var migrations = require('@angular/compiler-cli/private/migrations');
-require('node:path');
-var project_paths = require('./project_paths-D2V-Uh2L.cjs');
-var compiler = require('@angular/compiler');
-
-function getMemberName(member) {
-    if (member.name === undefined) {
-        return null;
-    }
-    if (ts.isIdentifier(member.name) || ts.isStringLiteralLike(member.name)) {
-        return member.name.text;
-    }
-    if (ts.isPrivateIdentifier(member.name)) {
-        return `#${member.name.text}`;
-    }
-    return null;
-}
-
-/** Checks whether the given node can be an `@Input()` declaration node. */
-function isInputContainerNode(node) {
-    return (((ts.isAccessor(node) && ts.isClassDeclaration(node.parent)) ||
-        ts.isPropertyDeclaration(node)) &&
-        getMemberName(node) !== null);
-}
-
-/**
- * Detects `query(By.directive(T)).componentInstance` patterns and enhances
- * them with information of `T`. This is important because `.componentInstance`
- * is currently typed as `any` and may cause runtime test failures after input
- * migrations then.
- *
- * The reference resolution pass leverages information from this pattern
- * recognizer.
- */
-class DebugElementComponentInstance {
-    checker;
-    cache = new WeakMap();
-    constructor(checker) {
-        this.checker = checker;
-    }
-    detect(node) {
-        if (this.cache.has(node)) {
-            return this.cache.get(node);
-        }
-        if (!ts.isPropertyAccessExpression(node)) {
-            return null;
-        }
-        // Check for `<>.componentInstance`.
-        if (!ts.isIdentifier(node.name) || node.name.text !== 'componentInstance') {
-            return null;
-        }
-        // Check for `<>.query(..).<>`.
-        if (!ts.isCallExpression(node.expression) ||
-            !ts.isPropertyAccessExpression(node.expression.expression) ||
-            !ts.isIdentifier(node.expression.expression.name) ||
-            node.expression.expression.name.text !== 'query') {
-            return null;
-        }
-        const queryCall = node.expression;
-        if (queryCall.arguments.length !== 1) {
-            return null;
-        }
-        const queryArg = queryCall.arguments[0];
-        let typeExpr;
-        if (ts.isCallExpression(queryArg) &&
-            queryArg.arguments.length === 1 &&
-            ts.isIdentifier(queryArg.arguments[0])) {
-            // Detect references, like: `query(By.directive(T))`.
-            typeExpr = queryArg.arguments[0];
-        }
-        else if (ts.isIdentifier(queryArg)) {
-            // Detect references, like: `harness.query(T)`.
-            typeExpr = queryArg;
-        }
-        else {
-            return null;
-        }
-        const symbol = this.checker.getSymbolAtLocation(typeExpr);
-        if (symbol?.valueDeclaration === undefined ||
-            !ts.isClassDeclaration(symbol?.valueDeclaration)) {
-            // Cache this as we use the expensive type checker.
-            this.cache.set(node, null);
-            return null;
-        }
-        const type = this.checker.getTypeAtLocation(symbol.valueDeclaration);
-        this.cache.set(node, type);
-        return type;
-    }
-}
-
-/**
- * Recognizes `Partial<T>` instances in Catalyst tests. Those type queries
- * are likely used for typing property initialization values for the given class `T`
- * and we have a few scenarios:
- *
- *   1. The API does not unwrap signal inputs. In which case, the values are likely no
- *      longer assignable to an `InputSignal`.
- *   2. The API does unwrap signal inputs, in which case we need to unwrap the `Partial`
- *      because the values are raw initial values, like they were before.
- *
- * We can enable this heuristic when we detect Catalyst as we know it supports unwrapping.
- */
-class PartialDirectiveTypeInCatalystTests {
-    checker;
-    knownFields;
-    constructor(checker, knownFields) {
-        this.checker = checker;
-        this.knownFields = knownFields;
-    }
-    detect(node) {
-        // Detect `Partial<...>`
-        if (!ts.isTypeReferenceNode(node) ||
-            !ts.isIdentifier(node.typeName) ||
-            node.typeName.text !== 'Partial') {
-            return null;
-        }
-        // Ignore if the source file doesn't reference Catalyst.
-        if (!node.getSourceFile().text.includes('angular2/testing/catalyst')) {
-            return null;
-        }
-        // Extract T of `Partial<T>`.
-        const cmpTypeArg = node.typeArguments?.[0];
-        if (!cmpTypeArg ||
-            !ts.isTypeReferenceNode(cmpTypeArg) ||
-            !ts.isIdentifier(cmpTypeArg.typeName)) {
-            return null;
-        }
-        const cmpType = cmpTypeArg.typeName;
-        const symbol = this.checker.getSymbolAtLocation(cmpType);
-        // Note: Technically the class might be derived of an input-containing class,
-        // but this is out of scope for now. We can expand if we see it's a common case.
-        if (symbol?.valueDeclaration === undefined ||
-            !ts.isClassDeclaration(symbol.valueDeclaration) ||
-            !this.knownFields.shouldTrackClassReference(symbol.valueDeclaration)) {
-            return null;
-        }
-        return { referenceNode: node, targetClass: symbol.valueDeclaration };
-    }
-}
-
-/**
- * Attempts to look up the given property access chain using
- * the type checker.
- *
- * Notably this is not as safe as using the type checker directly to
- * retrieve symbols of a given identifier, but in some cases this is
- * a necessary approach to compensate e.g. for a lack of TCB information
- * when processing Angular templates.
- *
- * The path is a list of properties to be accessed sequentially on the
- * given type.
- */
-function lookupPropertyAccess(checker, type, path, options = {}) {
-    let symbol = null;
-    for (const propName of path) {
-        // Note: We support assuming `NonNullable` for the pathl This is necessary
-        // in some situations as otherwise the lookups would fail to resolve the target
-        // symbol just because of e.g. a ternary. This is used in the signal input migration
-        // for host bindings.
-        type = options.ignoreNullability ? type.getNonNullableType() : type;
-        const propSymbol = type.getProperty(propName);
-        if (propSymbol === undefined) {
-            return null;
-        }
-        symbol = propSymbol;
-        type = checker.getTypeOfSymbol(propSymbol);
-    }
-    if (symbol === null) {
-        return null;
-    }
-    return { symbol, type };
-}
-
-/**
- * AST visitor that iterates through a template and finds all
- * input references.
- *
- * This resolution is important to be able to migrate references to inputs
- * that will be migrated to signal inputs.
- */
-class TemplateReferenceVisitor extends compiler.TmplAstRecursiveVisitor {
-    result = [];
-    /**
-     * Whether we are currently descending into HTML AST nodes
-     * where all bound attributes are considered potentially narrowing.
-     *
-     * Keeps track of all referenced inputs in such attribute expressions.
-     */
-    templateAttributeReferencedFields = null;
-    expressionVisitor;
-    seenKnownFieldsCount = new Map();
-    constructor(typeChecker, templateTypeChecker, componentClass, knownFields, fieldNamesToConsiderForReferenceLookup) {
-        super();
-        this.expressionVisitor = new TemplateExpressionReferenceVisitor(typeChecker, templateTypeChecker, componentClass, knownFields, fieldNamesToConsiderForReferenceLookup);
-    }
-    checkExpressionForReferencedFields(activeNode, expressionNode) {
-        const referencedFields = this.expressionVisitor.checkTemplateExpression(activeNode, expressionNode);
-        // Add all references to the overall visitor result.
-        this.result.push(...referencedFields);
-        // Count usages of seen input references. We'll use this to make decisions
-        // based on whether inputs are potentially narrowed or not.
-        for (const input of referencedFields) {
-            this.seenKnownFieldsCount.set(input.targetField.key, (this.seenKnownFieldsCount.get(input.targetField.key) ?? 0) + 1);
-        }
-        return referencedFields;
-    }
-    descendAndCheckForNarrowedSimilarReferences(potentiallyNarrowedInputs, descend) {
-        const inputs = potentiallyNarrowedInputs.map((i) => ({
-            ref: i,
-            key: i.targetField.key,
-            pastCount: this.seenKnownFieldsCount.get(i.targetField.key) ?? 0,
-        }));
-        descend();
-        for (const input of inputs) {
-            // Input was referenced inside a narrowable spot, and is used in child nodes.
-            // This is a sign for the input to be narrowed. Mark it as such.
-            if ((this.seenKnownFieldsCount.get(input.key) ?? 0) > input.pastCount) {
-                input.ref.isLikelyNarrowed = true;
-            }
-        }
-    }
-    visitTemplate(template) {
-        // Note: We assume all bound expressions for templates may be subject
-        // to TCB narrowing. This is relevant for now until we support narrowing
-        // of signal calls in templates.
-        // TODO: Remove with: https://github.com/angular/angular/pull/55456.
-        this.templateAttributeReferencedFields = [];
-        compiler.tmplAstVisitAll(this, template.attributes);
-        compiler.tmplAstVisitAll(this, template.templateAttrs);
-        // If we are dealing with a microsyntax template, do not check
-        // inputs and outputs as those are already passed to the children.
-        // Template attributes may contain relevant expressions though.
-        if (template.tagName === 'ng-template') {
-            compiler.tmplAstVisitAll(this, template.inputs);
-            compiler.tmplAstVisitAll(this, template.outputs);
-        }
-        const referencedInputs = this.templateAttributeReferencedFields;
-        this.templateAttributeReferencedFields = null;
-        this.descendAndCheckForNarrowedSimilarReferences(referencedInputs, () => {
-            compiler.tmplAstVisitAll(this, template.children);
-            compiler.tmplAstVisitAll(this, template.references);
-            compiler.tmplAstVisitAll(this, template.variables);
-        });
-    }
-    visitIfBlockBranch(block) {
-        if (block.expression) {
-            const referencedFields = this.checkExpressionForReferencedFields(block, block.expression);
-            this.descendAndCheckForNarrowedSimilarReferences(referencedFields, () => {
-                super.visitIfBlockBranch(block);
-            });
-        }
-        else {
-            super.visitIfBlockBranch(block);
-        }
-    }
-    visitForLoopBlock(block) {
-        this.checkExpressionForReferencedFields(block, block.expression);
-        this.checkExpressionForReferencedFields(block, block.trackBy);
-        super.visitForLoopBlock(block);
-    }
-    visitSwitchBlock(block) {
-        const referencedFields = this.checkExpressionForReferencedFields(block, block.expression);
-        this.descendAndCheckForNarrowedSimilarReferences(referencedFields, () => {
-            super.visitSwitchBlock(block);
-        });
-    }
-    visitSwitchBlockCase(block) {
-        if (block.expression) {
-            const referencedFields = this.checkExpressionForReferencedFields(block, block.expression);
-            this.descendAndCheckForNarrowedSimilarReferences(referencedFields, () => {
-                super.visitSwitchBlockCase(block);
-            });
-        }
-        else {
-            super.visitSwitchBlockCase(block);
-        }
-    }
-    visitDeferredBlock(deferred) {
-        if (deferred.triggers.when) {
-            this.checkExpressionForReferencedFields(deferred, deferred.triggers.when.value);
-        }
-        if (deferred.prefetchTriggers.when) {
-            this.checkExpressionForReferencedFields(deferred, deferred.prefetchTriggers.when.value);
-        }
-        super.visitDeferredBlock(deferred);
-    }
-    visitBoundText(text) {
-        this.checkExpressionForReferencedFields(text, text.value);
-    }
-    visitBoundEvent(attribute) {
-        this.checkExpressionForReferencedFields(attribute, attribute.handler);
-    }
-    visitBoundAttribute(attribute) {
-        const referencedFields = this.checkExpressionForReferencedFields(attribute, attribute.value);
-        // Attributes inside templates are potentially "narrowed" and hence we
-        // keep track of all referenced inputs to see if they actually are.
-        if (this.templateAttributeReferencedFields !== null) {
-            this.templateAttributeReferencedFields.push(...referencedFields);
-        }
-    }
-    visitLetDeclaration(decl) {
-        this.checkExpressionForReferencedFields(decl, decl.value);
-    }
-}
-/**
- * Expression AST visitor that checks whether a given expression references
- * a known `@Input()`.
- *
- * This resolution is important to be able to migrate references to inputs
- * that will be migrated to signal inputs.
- */
-class TemplateExpressionReferenceVisitor extends compiler.RecursiveAstVisitor {
-    typeChecker;
-    templateTypeChecker;
-    componentClass;
-    knownFields;
-    fieldNamesToConsiderForReferenceLookup;
-    activeTmplAstNode = null;
-    detectedInputReferences = [];
-    isInsideObjectShorthandExpression = false;
-    insideConditionalExpressionsWithReads = [];
-    constructor(typeChecker, templateTypeChecker, componentClass, knownFields, fieldNamesToConsiderForReferenceLookup) {
-        super();
-        this.typeChecker = typeChecker;
-        this.templateTypeChecker = templateTypeChecker;
-        this.componentClass = componentClass;
-        this.knownFields = knownFields;
-        this.fieldNamesToConsiderForReferenceLookup = fieldNamesToConsiderForReferenceLookup;
-    }
-    /** Checks the given AST expression. */
-    checkTemplateExpression(activeNode, expressionNode) {
-        this.detectedInputReferences = [];
-        this.activeTmplAstNode = activeNode;
-        expressionNode.visit(this, []);
-        return this.detectedInputReferences;
-    }
-    visit(ast, context) {
-        super.visit(ast, [...context, ast]);
-    }
-    // Keep track when we are inside an object shorthand expression. This is
-    // necessary as we need to expand the shorthand to invoke a potential new signal.
-    // E.g. `{bla}` may be transformed to `{bla: bla()}`.
-    visitLiteralMap(ast, context) {
-        for (const [idx, key] of ast.keys.entries()) {
-            this.isInsideObjectShorthandExpression =
-                key.kind === 'property' && !!key.isShorthandInitialized;
-            ast.values[idx].visit(this, context);
-            this.isInsideObjectShorthandExpression = false;
-        }
-    }
-    visitPropertyRead(ast, context) {
-        this._inspectPropertyAccess(ast, false, context);
-        super.visitPropertyRead(ast, context);
-    }
-    visitSafePropertyRead(ast, context) {
-        this._inspectPropertyAccess(ast, false, context);
-        super.visitPropertyRead(ast, context);
-    }
-    visitBinary(ast, context) {
-        if (ast.operation === '=' && ast.left instanceof compiler.PropertyRead) {
-            this._inspectPropertyAccess(ast.left, true, [...context, ast, ast.left]);
-        }
-        else {
-            super.visitBinary(ast, context);
-        }
-    }
-    visitConditional(ast, context) {
-        this.visit(ast.condition, context);
-        this.insideConditionalExpressionsWithReads.push(ast.condition);
-        this.visit(ast.trueExp, context);
-        this.visit(ast.falseExp, context);
-        this.insideConditionalExpressionsWithReads.pop();
-    }
-    /**
-     * Inspects the property access and attempts to resolve whether they access
-     * a known field. If so, the result is captured.
-     */
-    _inspectPropertyAccess(ast, isAssignment, astPath) {
-        if (this.fieldNamesToConsiderForReferenceLookup !== null &&
-            !this.fieldNamesToConsiderForReferenceLookup.has(ast.name)) {
-            return;
-        }
-        const isWrite = !!(isAssignment ||
-            (this.activeTmplAstNode && isTwoWayBindingNode(this.activeTmplAstNode)));
-        this._checkAccessViaTemplateTypeCheckBlock(ast, isWrite, astPath) ||
-            this._checkAccessViaOwningComponentClassType(ast, isWrite, astPath);
-    }
-    /**
-     * Checks whether the node refers to an input using the TCB information.
-     * Type check block may not exist for e.g. test components, so this can return `null`.
-     */
-    _checkAccessViaTemplateTypeCheckBlock(ast, isWrite, astPath) {
-        // There might be no template type checker. E.g. if we check host bindings.
-        if (this.templateTypeChecker === null) {
-            return false;
-        }
-        const symbol = this.templateTypeChecker.getSymbolOfNode(ast, this.componentClass);
-        if (symbol?.kind !== migrations.SymbolKind.Expression) {
-            return false;
-        }
-        const tsSymbol = this.templateTypeChecker.getTsSymbolOfSymbol(symbol);
-        if (tsSymbol === null) {
-            return false;
-        }
-        // Dangerous: Type checking symbol retrieval is a totally different `ts.Program`,
-        // than the one where we analyzed `knownInputs`.
-        // --> Find the input via its input id.
-        const targetInput = this.knownFields.attemptRetrieveDescriptorFromSymbol(tsSymbol);
-        if (targetInput === null) {
-            return false;
-        }
-        this.detectedInputReferences.push({
-            targetNode: targetInput.node,
-            targetField: targetInput,
-            read: ast,
-            readAstPath: astPath,
-            context: this.activeTmplAstNode,
-            isLikelyNarrowed: this._isPartOfNarrowingTernary(ast),
-            isObjectShorthandExpression: this.isInsideObjectShorthandExpression,
-            isWrite,
-        });
-        return true;
-    }
-    /**
-     * Simple resolution checking whether the given AST refers to a known input.
-     * This is a fallback for when there is no type checking information (e.g. in host bindings).
-     *
-     * It attempts to resolve references by traversing accesses of the "component class" type.
-     * e.g. `this.bla` is resolved via `CompType#bla` and further.
-     */
-    _checkAccessViaOwningComponentClassType(ast, isWrite, astPath) {
-        // We might check host bindings, which can never point to template variables or local refs.
-        const expressionTemplateTarget = this.templateTypeChecker === null
-            ? null
-            : this.templateTypeChecker.getExpressionTarget(ast, this.componentClass);
-        // Skip checking if:
-        // - the reference resolves to a template variable or local ref. No way to resolve without TCB.
-        // - the owning component does not have a name (should not happen technically).
-        if (expressionTemplateTarget !== null || this.componentClass.name === undefined) {
-            return;
-        }
-        const property = traverseReceiverAndLookupSymbol(ast, this.componentClass, this.typeChecker);
-        if (property === null) {
-            return;
-        }
-        const matchingTarget = this.knownFields.attemptRetrieveDescriptorFromSymbol(property);
-        if (matchingTarget === null) {
-            return;
-        }
-        this.detectedInputReferences.push({
-            targetNode: matchingTarget.node,
-            targetField: matchingTarget,
-            read: ast,
-            readAstPath: astPath,
-            context: this.activeTmplAstNode,
-            isLikelyNarrowed: this._isPartOfNarrowingTernary(ast),
-            isObjectShorthandExpression: this.isInsideObjectShorthandExpression,
-            isWrite,
-        });
-    }
-    _isPartOfNarrowingTernary(read) {
-        // Note: We do not safe check that the reads are fully matching 1:1. This is acceptable
-        // as worst case we just skip an input from being migrated. This is very unlikely too.
-        return this.insideConditionalExpressionsWithReads.some((r) => (r instanceof compiler.PropertyRead || r instanceof compiler.SafePropertyRead) && r.name === read.name);
-    }
-}
-/**
- * Emulates an access to a given field using the TypeScript `ts.Type`
- * of the given class. The resolved symbol of the access is returned.
- */
-function traverseReceiverAndLookupSymbol(readOrWrite, componentClass, checker) {
-    const path = [readOrWrite.name];
-    let node = readOrWrite;
-    while (node.receiver instanceof compiler.PropertyRead) {
-        node = node.receiver;
-        path.unshift(node.name);
-    }
-    if (!(node.receiver instanceof compiler.ImplicitReceiver)) {
-        return null;
-    }
-    const classType = checker.getTypeAtLocation(componentClass.name);
-    return (lookupPropertyAccess(checker, classType, path, {
-        // Necessary to avoid breaking the resolution if there is
-        // some narrowing involved. E.g. `myClass ? myClass.input`.
-        ignoreNullability: true,
-    })?.symbol ?? null);
-}
-/** Whether the given node refers to a two-way binding AST node. */
-function isTwoWayBindingNode(node) {
-    return ((node instanceof compiler.TmplAstBoundAttribute && node.type === compiler.BindingType.TwoWay) ||
-        (node instanceof compiler.TmplAstBoundEvent && node.type === compiler.ParsedEventType.TwoWay));
-}
-
-/** Possible types of references to known fields detected. */
-exports.ReferenceKind = void 0;
-(function (ReferenceKind) {
-    ReferenceKind[ReferenceKind["InTemplate"] = 0] = "InTemplate";
-    ReferenceKind[ReferenceKind["InHostBinding"] = 1] = "InHostBinding";
-    ReferenceKind[ReferenceKind["TsReference"] = 2] = "TsReference";
-    ReferenceKind[ReferenceKind["TsClassTypeReference"] = 3] = "TsClassTypeReference";
-})(exports.ReferenceKind || (exports.ReferenceKind = {}));
-/** Whether the given reference is a TypeScript reference. */
-function isTsReference(ref) {
-    return ref.kind === exports.ReferenceKind.TsReference;
-}
-/** Whether the given reference is a template reference. */
-function isTemplateReference(ref) {
-    return ref.kind === exports.ReferenceKind.InTemplate;
-}
-/** Whether the given reference is a host binding reference. */
-function isHostBindingReference(ref) {
-    return ref.kind === exports.ReferenceKind.InHostBinding;
-}
-/**
- * Whether the given reference is a TypeScript `ts.Type` reference
- * to a class containing known fields.
- */
-function isTsClassTypeReference(ref) {
-    return ref.kind === exports.ReferenceKind.TsClassTypeReference;
-}
-
-/**
- * Checks host bindings of the given class and tracks all
- * references to inputs within bindings.
- */
-function identifyHostBindingReferences(node, programInfo, checker, reflector, result, knownFields, fieldNamesToConsiderForReferenceLookup) {
-    if (node.name === undefined) {
-        return;
-    }
-    const decorators = reflector.getDecoratorsOfDeclaration(node);
-    if (decorators === null) {
-        return;
-    }
-    const angularDecorators = migrations.getAngularDecorators(decorators, ['Directive', 'Component'], 
-    /* isAngularCore */ false);
-    if (angularDecorators.length === 0) {
-        return;
-    }
-    // Assume only one Angular decorator per class.
-    const ngDecorator = angularDecorators[0];
-    if (ngDecorator.args?.length !== 1) {
-        return;
-    }
-    const metadataNode = migrations.unwrapExpression(ngDecorator.args[0]);
-    if (!ts.isObjectLiteralExpression(metadataNode)) {
-        return;
-    }
-    const metadata = migrations.reflectObjectLiteral(metadataNode);
-    if (!metadata.has('host')) {
-        return;
-    }
-    let hostField = migrations.unwrapExpression(metadata.get('host'));
-    // Special-case in case host bindings are shared via a variable.
-    // e.g. Material button shares host bindings as a constant in the same target.
-    if (ts.isIdentifier(hostField)) {
-        let symbol = checker.getSymbolAtLocation(hostField);
-        // Plain identifier references can point to alias symbols (e.g. imports).
-        if (symbol !== undefined && symbol.flags & ts.SymbolFlags.Alias) {
-            symbol = checker.getAliasedSymbol(symbol);
-        }
-        if (symbol !== undefined &&
-            symbol.valueDeclaration !== undefined &&
-            ts.isVariableDeclaration(symbol.valueDeclaration)) {
-            hostField = symbol?.valueDeclaration.initializer;
-        }
-    }
-    if (hostField === undefined || !ts.isObjectLiteralExpression(hostField)) {
-        return;
-    }
-    const hostMap = migrations.reflectObjectLiteral(hostField);
-    const expressionResult = [];
-    const expressionVisitor = new TemplateExpressionReferenceVisitor(checker, null, node, knownFields, fieldNamesToConsiderForReferenceLookup);
-    for (const [rawName, expression] of hostMap.entries()) {
-        if (!ts.isStringLiteralLike(expression)) {
-            continue;
-        }
-        const isEventBinding = rawName.startsWith('(');
-        const isPropertyBinding = rawName.startsWith('[');
-        // Only migrate property or event bindings.
-        if (!isPropertyBinding && !isEventBinding) {
-            continue;
-        }
-        const parser = compiler.makeBindingParser();
-        const sourceSpan = new compiler.ParseSourceSpan(
-        // Fake source span to keep parsing offsets zero-based.
-        // We then later combine these with the expression TS node offsets.
-        new compiler.ParseLocation({ content: '', url: '' }, 0, 0, 0), new compiler.ParseLocation({ content: '', url: '' }, 0, 0, 0));
-        const name = rawName.substring(1, rawName.length - 1);
-        let parsed = undefined;
-        if (isEventBinding) {
-            const result = [];
-            parser.parseEvent(name.substring(1, name.length - 1), expression.text, false, sourceSpan, sourceSpan, [], result, sourceSpan);
-            parsed = result[0].handler;
-        }
-        else {
-            const result = [];
-            parser.parsePropertyBinding(name, expression.text, true, 
-            /* isTwoWayBinding */ false, sourceSpan, 0, sourceSpan, [], result, sourceSpan);
-            parsed = result[0].expression;
-        }
-        if (parsed != null) {
-            expressionResult.push(...expressionVisitor.checkTemplateExpression(expression, parsed));
-        }
-    }
-    for (const ref of expressionResult) {
-        result.references.push({
-            kind: exports.ReferenceKind.InHostBinding,
-            from: {
-                read: ref.read,
-                readAstPath: ref.readAstPath,
-                isObjectShorthandExpression: ref.isObjectShorthandExpression,
-                isWrite: ref.isWrite,
-                file: project_paths.projectFile(ref.context.getSourceFile(), programInfo),
-                hostPropertyNode: ref.context,
-            },
-            target: ref.targetField,
-        });
-    }
-}
-
-/**
- * Attempts to extract the `TemplateDefinition` for the given
- * class, if possible.
- *
- * The definition can then be used with the Angular compiler to
- * load/parse the given template.
- */
-function attemptExtractTemplateDefinition(node, checker, reflector, resourceLoader) {
-    const classDecorators = reflector.getDecoratorsOfDeclaration(node);
-    const evaluator = new migrations.PartialEvaluator(reflector, checker, null);
-    const ngDecorators = classDecorators !== null
-        ? migrations.getAngularDecorators(classDecorators, ['Component'], /* isAngularCore */ false)
-        : [];
-    if (ngDecorators.length === 0 ||
-        ngDecorators[0].args === null ||
-        ngDecorators[0].args.length === 0 ||
-        !ts.isObjectLiteralExpression(ngDecorators[0].args[0])) {
-        return null;
-    }
-    const properties = migrations.reflectObjectLiteral(ngDecorators[0].args[0]);
-    const templateProp = properties.get('template');
-    const templateUrlProp = properties.get('templateUrl');
-    const containingFile = node.getSourceFile().fileName;
-    // inline template.
-    if (templateProp !== undefined) {
-        const templateStr = evaluator.evaluate(templateProp);
-        if (typeof templateStr === 'string') {
-            return {
-                isInline: true,
-                expression: templateProp,
-                preserveWhitespaces: false,
-                resolvedTemplateUrl: containingFile,
-                templateUrl: containingFile,
-            };
-        }
-    }
-    try {
-        // external template.
-        if (templateUrlProp !== undefined) {
-            const templateUrl = evaluator.evaluate(templateUrlProp);
-            if (typeof templateUrl === 'string') {
-                return {
-                    isInline: false,
-                    preserveWhitespaces: false,
-                    templateUrlExpression: templateUrlProp,
-                    templateUrl,
-                    resolvedTemplateUrl: resourceLoader.resolve(templateUrl, containingFile),
-                };
-            }
-        }
-    }
-    catch (e) {
-        console.error(`Could not parse external template: ${e}`);
-    }
-    return null;
-}
-
-/**
- * Checks whether the given class has an Angular template, and resolves
- * all of the references to inputs.
- */
-function identifyTemplateReferences(programInfo, node, reflector, checker, evaluator, templateTypeChecker, resourceLoader, options, result, knownFields, fieldNamesToConsiderForReferenceLookup) {
-    const template = templateTypeChecker.getTemplate(node, compilerCli.OptimizeFor.WholeProgram) ??
-        // If there is no template registered in the TCB or compiler, the template may
-        // be skipped due to an explicit `jit: true` setting. We try to detect this case
-        // and parse the template manually.
-        extractTemplateWithoutCompilerAnalysis(node, checker, reflector, resourceLoader, evaluator, options);
-    if (template !== null) {
-        const visitor = new TemplateReferenceVisitor(checker, templateTypeChecker, node, knownFields, fieldNamesToConsiderForReferenceLookup);
-        template.forEach((node) => node.visit(visitor));
-        for (const res of visitor.result) {
-            const templateFilePath = res.context.sourceSpan.start.file.url;
-            // Templates without an URL are non-mappable artifacts of e.g.
-            // string concatenated templates. See the `indirect` template
-            // source mapping concept in the compiler. We skip such references
-            // as those cannot be migrated, but print an error for now.
-            if (templateFilePath === '') {
-                // TODO: Incorporate a TODO potentially.
-                console.error(`Found reference to field ${res.targetField.key} that cannot be ` +
-                    `migrated because the template cannot be parsed with source map information ` +
-                    `(in file: ${node.getSourceFile().fileName}).`);
-                continue;
-            }
-            result.references.push({
-                kind: exports.ReferenceKind.InTemplate,
-                from: {
-                    read: res.read,
-                    readAstPath: res.readAstPath,
-                    node: res.context,
-                    isObjectShorthandExpression: res.isObjectShorthandExpression,
-                    originatingTsFile: project_paths.projectFile(node.getSourceFile(), programInfo),
-                    templateFile: project_paths.projectFile(compilerCli.absoluteFrom(templateFilePath), programInfo),
-                    isLikelyPartOfNarrowing: res.isLikelyNarrowed,
-                    isWrite: res.isWrite,
-                },
-                target: res.targetField,
-            });
-        }
-    }
-}
-/**
- * Attempts to extract a `@Component` template from the given class,
- * without relying on the `NgCompiler` program analysis.
- *
- * This is useful for JIT components using `jit: true` which were not
- * processed by the Angular compiler, but may still have templates that
- * contain references to inputs that we can resolve via the fallback
- * reference resolutions (that does not use the type check block).
- */
-function extractTemplateWithoutCompilerAnalysis(node, checker, reflector, resourceLoader, evaluator, options) {
-    if (node.name === undefined) {
-        return null;
-    }
-    const tmplDef = attemptExtractTemplateDefinition(node, checker, reflector, resourceLoader);
-    if (tmplDef === null) {
-        return null;
-    }
-    return migrations.extractTemplate(node, tmplDef, evaluator, null, resourceLoader, {
-        enableBlockSyntax: true,
-        enableLetSyntax: true,
-        usePoisonedData: true,
-        enableI18nLegacyMessageIdFormat: options.enableI18nLegacyMessageIdFormat !== false,
-        i18nNormalizeLineEndingsInICUs: options.i18nNormalizeLineEndingsInICUs === true,
-        enableSelectorless: false,
-    }, migrations.CompilationMode.FULL).nodes;
-}
-
-/** Gets the pattern and property name for a given binding element. */
-function resolveBindingElement(node) {
-    const name = node.propertyName ?? node.name;
-    // If we are discovering a non-analyzable element in the path, abort.
-    if (!ts.isStringLiteralLike(name) && !ts.isIdentifier(name)) {
-        return null;
-    }
-    return {
-        pattern: node.parent,
-        propertyName: name.text,
-    };
-}
-/** Gets the declaration node of the given binding element. */
-function getBindingElementDeclaration(node) {
-    while (true) {
-        if (ts.isBindingElement(node.parent.parent)) {
-            node = node.parent.parent;
-        }
-        else {
-            return node.parent.parent;
-        }
-    }
-}
-
-/**
- * Expands the given reference to its containing expression, capturing
- * the full context.
- *
- * E.g. `traverseAccess(ref<`bla`>)` may return `this.bla`
- *   or `traverseAccess(ref<`bla`>)` may return `this.someObj.a.b.c.bla`.
- *
- * This helper is useful as we will replace the full access with a temporary
- * variable for narrowing. Replacing just the identifier is wrong.
- */
-function traverseAccess(access) {
-    if (ts.isPropertyAccessExpression(access.parent) && access.parent.name === access) {
-        return access.parent;
-    }
-    else if (ts.isElementAccessExpression(access.parent) &&
-        access.parent.argumentExpression === access) {
-        return access.parent;
-    }
-    return access;
-}
-
-/**
- * Unwraps the parent of the given node, if it's a
- * parenthesized expression or `as` expression.
- */
-function unwrapParent(node) {
-    if (ts.isParenthesizedExpression(node.parent)) {
-        return unwrapParent(node.parent);
-    }
-    else if (ts.isAsExpression(node.parent)) {
-        return unwrapParent(node.parent);
-    }
-    return node;
-}
-
-/**
- * List of binary operators that indicate a write operation.
- *
- * Useful for figuring out whether an expression assigns to
- * something or not.
- */
-const writeBinaryOperators = [
-    ts.SyntaxKind.EqualsToken,
-    ts.SyntaxKind.BarBarEqualsToken,
-    ts.SyntaxKind.BarEqualsToken,
-    ts.SyntaxKind.AmpersandEqualsToken,
-    ts.SyntaxKind.AmpersandAmpersandEqualsToken,
-    ts.SyntaxKind.SlashEqualsToken,
-    ts.SyntaxKind.MinusEqualsToken,
-    ts.SyntaxKind.PlusEqualsToken,
-    ts.SyntaxKind.CaretEqualsToken,
-    ts.SyntaxKind.PercentEqualsToken,
-    ts.SyntaxKind.AsteriskEqualsToken,
-    ts.SyntaxKind.ExclamationEqualsToken,
-];
-
-/**
- * Checks whether given TypeScript reference refers to an Angular input, and captures
- * the reference if possible.
- *
- * @param fieldNamesToConsiderForReferenceLookup List of field names that should be
- *   respected when expensively looking up references to known fields.
- *   May be null if all identifiers should be inspected.
- */
-function identifyPotentialTypeScriptReference(node, programInfo, checker, knownFields, result, fieldNamesToConsiderForReferenceLookup, advisors) {
-    // Skip all identifiers that never can point to a migrated field.
-    // TODO: Capture these assumptions and performance optimizations in the design doc.
-    if (fieldNamesToConsiderForReferenceLookup !== null &&
-        !fieldNamesToConsiderForReferenceLookup.has(node.text)) {
-        return;
-    }
-    let target = undefined;
-    try {
-        // Resolve binding elements to their declaration symbol.
-        // Commonly inputs are accessed via object expansion. e.g. `const {input} = this;`.
-        if (ts.isBindingElement(node.parent)) {
-            // Skip binding elements that are using spread.
-            if (node.parent.dotDotDotToken !== undefined) {
-                return;
-            }
-            const bindingInfo = resolveBindingElement(node.parent);
-            if (bindingInfo === null) {
-                // The declaration could not be resolved. Skip analyzing this.
-                return;
-            }
-            const bindingType = checker.getTypeAtLocation(bindingInfo.pattern);
-            const resolved = lookupPropertyAccess(checker, bindingType, [bindingInfo.propertyName]);
-            target = resolved?.symbol;
-        }
-        else {
-            target = checker.getSymbolAtLocation(node);
-        }
-    }
-    catch (e) {
-        console.error('Unexpected error while trying to resolve identifier reference:');
-        console.error(e);
-        // Gracefully skip analyzing. This can happen when e.g. a reference is named similar
-        // to an input, but is dependant on `.d.ts` that is not necessarily available (clutz dts).
-        return;
-    }
-    noTargetSymbolCheck: if (target === undefined) {
-        if (ts.isPropertyAccessExpression(node.parent) && node.parent.name === node) {
-            const propAccessSymbol = checker.getSymbolAtLocation(node.parent.expression);
-            if (propAccessSymbol !== undefined &&
-                propAccessSymbol.valueDeclaration !== undefined &&
-                ts.isVariableDeclaration(propAccessSymbol.valueDeclaration) &&
-                propAccessSymbol.valueDeclaration.initializer !== undefined) {
-                target = advisors.debugElComponentInstanceTracker
-                    .detect(propAccessSymbol.valueDeclaration.initializer)
-                    ?.getProperty(node.text);
-                // We found a target in the fallback path. Break out.
-                if (target !== undefined) {
-                    break noTargetSymbolCheck;
-                }
-            }
-        }
-        return;
-    }
-    let targetInput = knownFields.attemptRetrieveDescriptorFromSymbol(target);
-    if (targetInput === null) {
-        return;
-    }
-    const access = unwrapParent(traverseAccess(node));
-    const accessParent = access.parent;
-    const isWriteReference = ts.isBinaryExpression(accessParent) &&
-        accessParent.left === access &&
-        writeBinaryOperators.includes(accessParent.operatorToken.kind);
-    // track accesses from source files to known fields.
-    result.references.push({
-        kind: exports.ReferenceKind.TsReference,
-        from: {
-            node,
-            file: project_paths.projectFile(node.getSourceFile(), programInfo),
-            isWrite: isWriteReference,
-            isPartOfElementBinding: ts.isBindingElement(node.parent),
-        },
-        target: targetInput,
-    });
-}
-
-/**
- * Phase where we iterate through all source file references and
- * detect references to known fields (e.g. commonly inputs).
- *
- * This is useful, for example in the signal input migration whe
- * references need to be migrated to unwrap signals, given that
- * their target properties is no longer holding a raw value, but
- * instead an `InputSignal`.
- *
- * This phase detects references in all types of locations:
- *    - TS source files
- *    - Angular templates (inline or external)
- *    - Host binding expressions.
- */
-function createFindAllSourceFileReferencesVisitor(programInfo, checker, reflector, resourceLoader, evaluator, templateTypeChecker, knownFields, fieldNamesToConsiderForReferenceLookup, result) {
-    const debugElComponentInstanceTracker = new DebugElementComponentInstance(checker);
-    const partialDirectiveCatalystTracker = new PartialDirectiveTypeInCatalystTests(checker, knownFields);
-    const perfCounters = {
-        template: 0,
-        hostBindings: 0,
-        tsReferences: 0,
-        tsTypes: 0,
-    };
-    // Schematic NodeJS execution may not have `global.performance` defined.
-    const currentTimeInMs = () => typeof global.performance !== 'undefined' ? global.performance.now() : Date.now();
-    const visitor = (node) => {
-        let lastTime = currentTimeInMs();
-        // Note: If there is no template type checker and resource loader, we aren't processing
-        // an Angular program, and can skip template detection.
-        if (ts.isClassDeclaration(node) && templateTypeChecker !== null && resourceLoader !== null) {
-            identifyTemplateReferences(programInfo, node, reflector, checker, evaluator, templateTypeChecker, resourceLoader, programInfo.userOptions, result, knownFields, fieldNamesToConsiderForReferenceLookup);
-            perfCounters.template += (currentTimeInMs() - lastTime) / 1000;
-            lastTime = currentTimeInMs();
-            identifyHostBindingReferences(node, programInfo, checker, reflector, result, knownFields, fieldNamesToConsiderForReferenceLookup);
-            perfCounters.hostBindings += (currentTimeInMs() - lastTime) / 1000;
-            lastTime = currentTimeInMs();
-        }
-        lastTime = currentTimeInMs();
-        // find references, but do not capture input declarations itself.
-        if (ts.isIdentifier(node) &&
-            !(isInputContainerNode(node.parent) && node.parent.name === node)) {
-            identifyPotentialTypeScriptReference(node, programInfo, checker, knownFields, result, fieldNamesToConsiderForReferenceLookup, {
-                debugElComponentInstanceTracker,
-            });
-        }
-        perfCounters.tsReferences += (currentTimeInMs() - lastTime) / 1000;
-        lastTime = currentTimeInMs();
-        // Detect `Partial<T>` references.
-        // Those are relevant to be tracked as they may be updated in Catalyst to
-        // unwrap signal inputs. Commonly people use `Partial` in Catalyst to type
-        // some "component initial values".
-        const partialDirectiveInCatalyst = partialDirectiveCatalystTracker.detect(node);
-        if (partialDirectiveInCatalyst !== null) {
-            result.references.push({
-                kind: exports.ReferenceKind.TsClassTypeReference,
-                from: {
-                    file: project_paths.projectFile(partialDirectiveInCatalyst.referenceNode.getSourceFile(), programInfo),
-                    node: partialDirectiveInCatalyst.referenceNode,
-                },
-                isPartialReference: true,
-                isPartOfCatalystFile: true,
-                target: partialDirectiveInCatalyst.targetClass,
-            });
-        }
-        perfCounters.tsTypes += (currentTimeInMs() - lastTime) / 1000;
-    };
-    return {
-        visitor,
-        debugPrintMetrics: () => {
-            console.info('Source file analysis performance', perfCounters);
-        },
-    };
-}
-
-exports.createFindAllSourceFileReferencesVisitor = createFindAllSourceFileReferencesVisitor;
-exports.getBindingElementDeclaration = getBindingElementDeclaration;
-exports.getMemberName = getMemberName;
-exports.isHostBindingReference = isHostBindingReference;
-exports.isInputContainerNode = isInputContainerNode;
-exports.isTemplateReference = isTemplateReference;
-exports.isTsClassTypeReference = isTsClassTypeReference;
-exports.isTsReference = isTsReference;
-exports.traverseAccess = traverseAccess;
-exports.unwrapParent = unwrapParent;

New alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Environment variable access

Supply chain risk

Package accesses environment variables, which may be a sign of credential stuffing or data theft.

Found 3 instances in 1 package

Filesystem access

Supply chain risk

Accesses the file system, and could potentially read sensitive data.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Found 1 instance in 1 package

Fixed alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Environment variable access

Supply chain risk

Package accesses environment variables, which may be a sign of credential stuffing or data theft.

Found 3 instances in 1 package

Filesystem access

Supply chain risk

Accesses the file system, and could potentially read sensitive data.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

7073451

0.07%

Lines of code

70777

0.05%

No dependency changes