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@babel/helper-create-class-features-plugin

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@babel/helper-create-class-features-plugin - npm Package Compare versions

Comparing version 7.19.0 to 7.20.2

41

lib/decorators.js

@@ -9,7 +9,4 @@ "use strict";

exports.hasOwnDecorators = hasOwnDecorators;
var _core = require("@babel/core");
var _helperReplaceSupers = require("@babel/helper-replace-supers");
var _helperFunctionName = require("@babel/helper-function-name");

@@ -20,7 +17,5 @@

}
function hasDecorators(node) {
return hasOwnDecorators(node) || node.body.body.some(hasOwnDecorators);
}
function prop(key, value) {

@@ -30,18 +25,13 @@ if (!value) return null;

}
function method(key, body) {
return _core.types.objectMethod("method", _core.types.identifier(key), [], _core.types.blockStatement(body));
}
function takeDecorators(node) {
let result;
if (node.decorators && node.decorators.length > 0) {
result = _core.types.arrayExpression(node.decorators.map(decorator => decorator.expression));
}
node.decorators = undefined;
return result;
}
function getKey(node) {

@@ -53,21 +43,17 @@ if (node.computed) {

} else {
return _core.types.stringLiteral(String(node.key.value));
return _core.types.stringLiteral(String(
node.key.value));
}
}
function extractElementDescriptor(file, classRef, superRef, path) {
const isMethod = path.isClassMethod();
if (path.isPrivate()) {
throw path.buildCodeFrameError(`Private ${isMethod ? "methods" : "fields"} in decorated classes are not supported yet.`);
}
if (path.node.type === "ClassAccessorProperty") {
throw path.buildCodeFrameError(`Accessor properties are not supported in 2018-09 decorator transform, please specify { "version": "2021-12" } instead.`);
}
if (path.node.type === "StaticBlock") {
throw path.buildCodeFrameError(`Static blocks are not supported in 2018-09 decorator transform, please specify { "version": "2021-12" } instead.`);
}
const {

@@ -77,3 +63,2 @@ node,

} = path;
if (!path.isTSDeclareMethod()) {

@@ -88,10 +73,6 @@ new _helperReplaceSupers.default({

}
const properties = [prop("kind", _core.types.stringLiteral(_core.types.isClassMethod(node) ? node.kind : "field")), prop("decorators", takeDecorators(node)), prop("static", node.static && _core.types.booleanLiteral(true)), prop("key", getKey(node))].filter(Boolean);
if (_core.types.isClassMethod(node)) {
const id = node.computed ? null : node.key;
const transformed = _core.types.toExpression(node);
properties.push(prop("value", (0, _helperFunctionName.default)({

@@ -107,7 +88,5 @@ node: transformed,

}
path.remove();
return _core.types.objectExpression(properties);
}
function addDecorateHelper(file) {

@@ -120,7 +99,5 @@ try {

}
throw err;
}
}
function buildDecoratedClass(ref, path, elements, file) {

@@ -140,3 +117,2 @@ const {

let superId;
if (superClass) {

@@ -146,7 +122,6 @@ superId = scope.generateUidIdentifierBasedOnNode(node.superClass, "super");

}
const classDecorators = takeDecorators(node);
const definitions = _core.types.arrayExpression(elements.filter(element => !element.node.abstract && element.node.type !== "TSIndexSignature").map(path => extractElementDescriptor(file, node.id, superId, path)));
const definitions = _core.types.arrayExpression(elements.filter(element =>
!element.node.abstract && element.node.type !== "TSIndexSignature").map(path => extractElementDescriptor(file, node.id, superId,
path)));
const wrapperCall = _core.template.expression.ast`

@@ -162,10 +137,7 @@ ${addDecorateHelper(file)}(

`;
if (!isStrict) {
wrapperCall.arguments[1].body.directives.push(_core.types.directive(_core.types.directiveLiteral("use strict")));
}
let replacement = wrapperCall;
let classPathDesc = "arguments.1.body.body.0";
if (isDeclaration) {

@@ -175,6 +147,4 @@ replacement = _core.template.statement.ast`let ${ref} = ${wrapperCall}`;

}
return {
instanceNodes: [_core.template.statement.ast`${_core.types.cloneNode(initializeId)}(this)`],
wrapClass(path) {

@@ -184,3 +154,2 @@ path.replaceWith(replacement);

}
};

@@ -187,0 +156,0 @@ }

39

lib/features.js

@@ -10,5 +10,3 @@ "use strict";

exports.shouldTransform = shouldTransform;
var _decorators = require("./decorators");
const FEATURES = Object.freeze({

@@ -23,14 +21,16 @@ fields: 1 << 1,

const featuresSameLoose = new Map([[FEATURES.fields, "@babel/plugin-proposal-class-properties"], [FEATURES.privateMethods, "@babel/plugin-proposal-private-methods"], [FEATURES.privateIn, "@babel/plugin-proposal-private-property-in-object"]]);
const featuresKey = "@babel/plugin-class-features/featuresKey";
const looseKey = "@babel/plugin-class-features/looseKey";
const looseLowPriorityKey = "@babel/plugin-class-features/looseLowPriorityKey/#__internal__@babel/preset-env__please-overwrite-loose-instead-of-throwing";
function enableFeature(file, feature, loose) {
if (!hasFeature(file, feature) || canIgnoreLoose(file, feature)) {
file.set(featuresKey, file.get(featuresKey) | feature);
if (loose === "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error") {
if (
loose === "#__internal__@babel/preset-env__prefer-true-but-false-is-ok-if-it-prevents-an-error") {
setLoose(file, feature, true);
file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);
} else if (loose === "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error") {
} else if (
loose === "#__internal__@babel/preset-env__prefer-false-but-true-is-ok-if-it-prevents-an-error") {
setLoose(file, feature, false);

@@ -42,10 +42,7 @@ file.set(looseLowPriorityKey, file.get(looseLowPriorityKey) | feature);

}
let resolvedLoose;
let higherPriorityPluginName;
for (const [mask, name] of featuresSameLoose) {
if (!hasFeature(file, mask)) continue;
const loose = isLoose(file, mask);
if (canIgnoreLoose(file, mask)) {

@@ -60,3 +57,2 @@ continue;

}
if (resolvedLoose !== undefined) {

@@ -71,11 +67,8 @@ for (const [mask, name] of featuresSameLoose) {

}
function hasFeature(file, feature) {
return !!(file.get(featuresKey) & feature);
}
function isLoose(file, feature) {
return !!(file.get(looseKey) & feature);
}
function setLoose(file, feature, loose) {

@@ -85,7 +78,5 @@ if (loose) file.set(looseKey, file.get(looseKey) | feature);else file.set(looseKey, file.get(looseKey) & ~feature);

}
function canIgnoreLoose(file, feature) {
return !!(file.get(looseLowPriorityKey) & feature);
}
function shouldTransform(path, file) {

@@ -97,7 +88,5 @@ let decoratorPath = null;

let staticBlockPath = null;
if ((0, _decorators.hasOwnDecorators)(path.node)) {
decoratorPath = path.get("decorators.0");
}
for (const el of path.get("body.body")) {

@@ -107,15 +96,11 @@ if (!decoratorPath && (0, _decorators.hasOwnDecorators)(el.node)) {

}
if (!publicFieldPath && el.isClassProperty()) {
publicFieldPath = el;
}
if (!privateFieldPath && el.isClassPrivateProperty()) {
privateFieldPath = el;
}
if (!privateMethodPath && el.isClassPrivateMethod != null && el.isClassPrivateMethod()) {
privateMethodPath = el;
}
if (!staticBlockPath && el.isStaticBlock != null && el.isStaticBlock()) {

@@ -125,35 +110,27 @@ staticBlockPath = el;

}
if (decoratorPath && privateFieldPath) {
throw privateFieldPath.buildCodeFrameError("Private fields in decorated classes are not supported yet.");
}
if (decoratorPath && privateMethodPath) {
throw privateMethodPath.buildCodeFrameError("Private methods in decorated classes are not supported yet.");
}
if (decoratorPath && !hasFeature(file, FEATURES.decorators)) {
throw path.buildCodeFrameError("Decorators are not enabled." + "\nIf you are using " + '["@babel/plugin-proposal-decorators", { "version": "legacy" }], ' + 'make sure it comes *before* "@babel/plugin-proposal-class-properties" ' + "and enable loose mode, like so:\n" + '\t["@babel/plugin-proposal-decorators", { "version": "legacy" }]\n' + '\t["@babel/plugin-proposal-class-properties", { "loose": true }]');
}
if (privateMethodPath && !hasFeature(file, FEATURES.privateMethods)) {
throw privateMethodPath.buildCodeFrameError("Class private methods are not enabled. " + "Please add `@babel/plugin-proposal-private-methods` to your configuration.");
}
if ((publicFieldPath || privateFieldPath) && !hasFeature(file, FEATURES.fields) && !hasFeature(file, FEATURES.privateMethods)) {
if ((publicFieldPath || privateFieldPath) && !hasFeature(file, FEATURES.fields) &&
!hasFeature(file, FEATURES.privateMethods)) {
throw path.buildCodeFrameError("Class fields are not enabled. " + "Please add `@babel/plugin-proposal-class-properties` to your configuration.");
}
if (staticBlockPath && !hasFeature(file, FEATURES.staticBlocks)) {
throw path.buildCodeFrameError("Static class blocks are not enabled. " + "Please add `@babel/plugin-proposal-class-static-block` to your configuration.");
}
if (decoratorPath || privateMethodPath || staticBlockPath) {
return true;
}
if ((publicFieldPath || privateFieldPath) && hasFeature(file, FEATURES.fields)) {
return true;
}
return false;

@@ -160,0 +137,0 @@ }

182

lib/fields.js

@@ -10,20 +10,11 @@ "use strict";

exports.transformPrivateNamesUsage = transformPrivateNamesUsage;
var _core = require("@babel/core");
var _helperReplaceSupers = require("@babel/helper-replace-supers");
var _helperEnvironmentVisitor = require("@babel/helper-environment-visitor");
var _helperMemberExpressionToFunctions = require("@babel/helper-member-expression-to-functions");
var _helperOptimiseCallExpression = require("@babel/helper-optimise-call-expression");
var _helperAnnotateAsPure = require("@babel/helper-annotate-as-pure");
var ts = require("./typescript");
function buildPrivateNamesMap(props) {
const privateNamesMap = new Map();
for (const prop of props) {

@@ -39,3 +30,2 @@ if (prop.isPrivate()) {

};
if (prop.isClassPrivateMethod()) {

@@ -50,13 +40,9 @@ if (prop.node.kind === "get") {

}
privateNamesMap.set(name, update);
}
}
return privateNamesMap;
}
function buildPrivateNamesNodes(privateNamesMap, privateFieldsAsProperties, state) {
const initNodes = [];
for (const [name, value] of privateNamesMap) {

@@ -70,7 +56,4 @@ const {

const isAccessor = getId || setId;
const id = _core.types.cloneNode(value.id);
let init;
if (privateFieldsAsProperties) {

@@ -81,3 +64,2 @@ init = _core.types.callExpression(state.addHelper("classPrivateFieldLooseKey"), [_core.types.stringLiteral(name)]);

}
if (init) {

@@ -88,7 +70,6 @@ (0, _helperAnnotateAsPure.default)(init);

}
return initNodes;
}
function privateNameVisitorFactory(visitor) {
const nestedVisitor = _core.traverse.visitors.merge([Object.assign({}, visitor), _helperEnvironmentVisitor.default]);
const privateNameVisitor = Object.assign({}, visitor, {

@@ -102,3 +83,2 @@ Class(path) {

const redeclared = [];
for (const prop of body) {

@@ -123,12 +103,8 @@ if (!prop.isPrivate()) continue;

}));
path.skipKey("body");
}
});
const nestedVisitor = _core.traverse.visitors.merge([Object.assign({}, visitor), _helperEnvironmentVisitor.default]);
return privateNameVisitor;
}
const privateNameVisitor = privateNameVisitorFactory({

@@ -146,3 +122,2 @@ PrivateName(path, {

} = path;
if (!parentPath.isMemberExpression({

@@ -155,3 +130,2 @@ property: node

}
const {

@@ -164,3 +138,2 @@ name

}
});

@@ -171,3 +144,2 @@

var _scope;
scope.rename(name);

@@ -177,3 +149,2 @@ scope = scope.parent;

}
const privateInVisitor = privateNameVisitorFactory({

@@ -198,4 +169,4 @@ BinaryExpression(path) {

if (redeclared && redeclared.includes(name)) return;
unshadow(this.classRef.name, path.scope, this.innerBinding);
if (privateFieldsAsProperties) {

@@ -210,3 +181,2 @@ const {

}
const {

@@ -216,3 +186,2 @@ id,

} = privateNamesMap.get(name);
if (isStatic) {

@@ -222,6 +191,4 @@ path.replaceWith(_core.template.expression.ast`${right} === ${this.classRef}`);

}
path.replaceWith(_core.template.expression.ast`${_core.types.cloneNode(id)}.has(${right})`);
}
});

@@ -237,10 +204,7 @@ const privateNameHandlerSpec = {

const memo = scope.maybeGenerateMemoised(object);
if (!memo) {
return;
}
this.memoiser.set(object, memo, count);
},
receiver(member) {

@@ -250,10 +214,7 @@ const {

} = member.node;
if (this.memoiser.has(object)) {
return _core.types.cloneNode(this.memoiser.get(object));
}
return _core.types.cloneNode(object);
},
get(member) {

@@ -278,9 +239,8 @@ const {

const isAccessor = getId || setId;
if (isStatic) {
const helperName = isMethod && !isAccessor ? "classStaticPrivateMethodGet" : "classStaticPrivateFieldSpecGet";
unshadow(classRef.name, member.scope, innerBinding);
return _core.types.callExpression(file.addHelper(helperName), [this.receiver(member), _core.types.cloneNode(classRef), _core.types.cloneNode(id)]);
}
if (isMethod) {

@@ -292,15 +252,10 @@ if (isAccessor) {

}
console.warn(`@babel/helpers is outdated, update it to silence this warning.`);
}
return _core.types.callExpression(file.addHelper("classPrivateFieldGet"), [this.receiver(member), _core.types.cloneNode(id)]);
}
return _core.types.callExpression(file.addHelper("classPrivateMethodGet"), [this.receiver(member), _core.types.cloneNode(id), _core.types.cloneNode(methodId)]);
}
return _core.types.callExpression(file.addHelper("classPrivateFieldGet"), [this.receiver(member), _core.types.cloneNode(id)]);
},
boundGet(member) {

@@ -310,3 +265,2 @@ this.memoise(member, 1);

},
set(member, value) {

@@ -329,3 +283,2 @@ const {

const isAccessor = getId || setId;
if (isStatic) {

@@ -335,3 +288,2 @@ const helperName = isMethod && !isAccessor ? "classStaticPrivateMethodSet" : "classStaticPrivateFieldSpecSet";

}
if (isMethod) {

@@ -341,9 +293,6 @@ if (setId) {

}
return _core.types.sequenceExpression([this.receiver(member), value, _core.types.callExpression(file.addHelper("readOnlyError"), [_core.types.stringLiteral(`#${name}`)])]);
}
return _core.types.callExpression(file.addHelper("classPrivateFieldSet"), [this.receiver(member), _core.types.cloneNode(id), value]);
},
destructureSet(member) {

@@ -362,3 +311,2 @@ const {

} = privateNamesMap.get(name);
if (isStatic) {

@@ -370,9 +318,6 @@ try {

}
return _core.types.memberExpression(_core.types.callExpression(helper, [this.receiver(member), _core.types.cloneNode(classRef), _core.types.cloneNode(id)]), _core.types.identifier("value"));
}
return _core.types.memberExpression(_core.types.callExpression(file.addHelper("classPrivateFieldDestructureSet"), [this.receiver(member), _core.types.cloneNode(id)]), _core.types.identifier("value"));
},
call(member, args) {

@@ -382,3 +327,2 @@ this.memoise(member, 1);

},
optionalCall(member, args) {

@@ -388,3 +332,2 @@ this.memoise(member, 1);

}
};

@@ -409,29 +352,21 @@ const privateNameHandlerLoose = {

},
set() {
throw new Error("private name handler with loose = true don't need set()");
},
boundGet(member) {
return _core.types.callExpression(_core.types.memberExpression(this.get(member), _core.types.identifier("bind")), [_core.types.cloneNode(member.node.object)]);
},
simpleSet(member) {
return this.get(member);
},
destructureSet(member) {
return this.get(member);
},
call(member, args) {
return _core.types.callExpression(this.get(member), args);
},
optionalCall(member, args) {
return _core.types.optionalCallExpression(this.get(member), args, true);
}
};
function transformPrivateNamesUsage(ref, path, privateNamesMap, {

@@ -461,3 +396,2 @@ privateFieldsAsProperties,

}
function buildPrivateFieldInitLoose(ref, prop, privateNamesMap) {

@@ -477,3 +411,2 @@ const {

}
function buildPrivateInstanceFieldInitSpec(ref, prop, privateNamesMap, state) {

@@ -504,3 +437,2 @@ const {

}
function buildPrivateStaticFieldInitSpec(prop, privateNamesMap) {

@@ -516,3 +448,2 @@ const privateName = privateNamesMap.get(prop.node.key.id.name);

if (!prop.isProperty() && (initAdded || !isAccessor)) return;
if (isAccessor) {

@@ -532,3 +463,2 @@ privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {

}
const value = prop.node.value || prop.scope.buildUndefinedNode();

@@ -544,3 +474,2 @@ return _core.template.statement.ast`

}
function buildPrivateMethodInitLoose(ref, prop, privateNamesMap) {

@@ -556,3 +485,2 @@ const privateName = privateNamesMap.get(prop.node.key.id.name);

if (initAdded) return;
if (methodId) {

@@ -568,5 +496,3 @@ return _core.template.statement.ast`

}
const isAccessor = getId || setId;
if (isAccessor) {

@@ -587,3 +513,2 @@ privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {

}
function buildPrivateInstanceMethodInitSpec(ref, prop, privateNamesMap, state) {

@@ -598,10 +523,7 @@ const privateName = privateNamesMap.get(prop.node.key.id.name);

const isAccessor = getId || setId;
if (isAccessor) {
return buildPrivateAccessorInitialization(ref, prop, privateNamesMap, state);
}
return buildPrivateInstanceMethodInitalization(ref, prop, privateNamesMap, state);
}
function buildPrivateAccessorInitialization(ref, prop, privateNamesMap, state) {

@@ -637,3 +559,2 @@ const privateName = privateNamesMap.get(prop.node.key.id.name);

}
function buildPrivateInstanceMethodInitalization(ref, prop, privateNamesMap, state) {

@@ -655,3 +576,2 @@ const privateName = privateNamesMap.get(prop.node.key.id.name);

}
function buildPublicFieldInitLoose(ref, prop) {

@@ -665,3 +585,2 @@ const {

}
function buildPublicFieldInitSpec(ref, prop, state) {

@@ -675,3 +594,2 @@ const {

}
function buildPrivateStaticMethodInitLoose(ref, prop, state, privateNamesMap) {

@@ -688,3 +606,2 @@ const privateName = privateNamesMap.get(prop.node.key.id.name);

const isAccessor = getId || setId;
if (isAccessor) {

@@ -704,3 +621,2 @@ privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {

}
return _core.template.statement.ast`

@@ -715,3 +631,2 @@ Object.defineProperty(${ref}, ${id}, {

}
function buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties = false) {

@@ -737,3 +652,2 @@ const privateName = privateNamesMap.get(prop.node.key.id.name);

let declId = methodId;
if (isGetter) {

@@ -752,6 +666,5 @@ privateNamesMap.set(prop.node.key.id.name, Object.assign({}, privateName, {

}
return _core.types.functionDeclaration(_core.types.cloneNode(declId), params, body, generator, async);
return _core.types.functionDeclaration(_core.types.cloneNode(declId),
params, body, generator, async);
}
const thisContextVisitor = _core.traverse.visitors.merge([{

@@ -762,3 +675,2 @@ ThisExpression(path, state) {

},
MetaProperty(path) {

@@ -770,3 +682,2 @@ const meta = path.get("meta");

} = path;
if (meta.isIdentifier({

@@ -780,5 +691,3 @@ name: "new"

}
}, _helperEnvironmentVisitor.default]);
const innerReferencesVisitor = {

@@ -791,8 +700,5 @@ ReferencedIdentifier(path, state) {

}
};
function replaceThisContext(path, ref, getSuperRef, file, isStaticBlock, constantSuper, innerBindingRef) {
var _state$classRef;
const state = {

@@ -809,3 +715,2 @@ classRef: ref,

getSuperRef,
getObjectRef() {

@@ -815,6 +720,4 @@ state.needsClassRef = true;

}
});
replacer.replace();
if (isStaticBlock || path.isProperty()) {

@@ -827,6 +730,4 @@ path.traverse(thisContextVisitor, state);

}
return state.needsClassRef;
}
function isNameOrLength({

@@ -839,10 +740,7 @@ key,

}
if (key.type === "StringLiteral") {
return key.value === "name" || key.value === "length";
}
return false;
}
function buildFieldsInitNodes(ref, superRef, props, privateNamesMap, state, setPublicClassFields, privateFieldsAsProperties, constantSuper, innerBindingRef) {

@@ -856,9 +754,8 @@ let needsClassRef = false;

var _injectSuperRef;
(_injectSuperRef = injectSuperRef) != null ? _injectSuperRef : injectSuperRef = props[0].scope.generateUidIdentifierBasedOnNode(superRef);
return injectSuperRef;
};
for (const prop of props) {
prop.isClassProperty() && ts.assertFieldTransformed(prop);
const isStatic = !(_core.types.isStaticBlock != null && _core.types.isStaticBlock(prop.node)) && prop.node.static;

@@ -871,3 +768,2 @@ const isInstance = !isStatic;

const isStaticBlock = prop.isStaticBlock == null ? void 0 : prop.isStaticBlock();
if (isStatic || isMethod && isPrivate || isStaticBlock) {

@@ -882,3 +778,2 @@ const replaced = replaceThisContext(prop, ref, getSuperRef, state, isStaticBlock, constantSuper, innerBindingRef);

const blockBody = prop.node.body;
if (blockBody.length === 1 && _core.types.isExpressionStatement(blockBody[0])) {

@@ -889,16 +784,14 @@ staticNodes.push(blockBody[0]);

}
break;
}
case isStatic && isPrivate && isField && privateFieldsAsProperties:
needsClassRef = true;
staticNodes.push(buildPrivateFieldInitLoose(_core.types.cloneNode(ref), prop, privateNamesMap));
staticNodes.push(
buildPrivateFieldInitLoose(_core.types.cloneNode(ref), prop, privateNamesMap));
break;
case isStatic && isPrivate && isField && !privateFieldsAsProperties:
needsClassRef = true;
staticNodes.push(buildPrivateStaticFieldInitSpec(prop, privateNamesMap));
staticNodes.push(
buildPrivateStaticFieldInitSpec(prop, privateNamesMap));
break;
case isStatic && isPublic && isField && setPublicClassFields:

@@ -910,46 +803,48 @@ if (!isNameOrLength(prop.node)) {

}
case isStatic && isPublic && isField && !setPublicClassFields:
needsClassRef = true;
staticNodes.push(buildPublicFieldInitSpec(_core.types.cloneNode(ref), prop, state));
staticNodes.push(
buildPublicFieldInitSpec(_core.types.cloneNode(ref), prop, state));
break;
case isInstance && isPrivate && isField && privateFieldsAsProperties:
instanceNodes.push(buildPrivateFieldInitLoose(_core.types.thisExpression(), prop, privateNamesMap));
instanceNodes.push(
buildPrivateFieldInitLoose(_core.types.thisExpression(), prop, privateNamesMap));
break;
case isInstance && isPrivate && isField && !privateFieldsAsProperties:
instanceNodes.push(buildPrivateInstanceFieldInitSpec(_core.types.thisExpression(), prop, privateNamesMap, state));
instanceNodes.push(buildPrivateInstanceFieldInitSpec(_core.types.thisExpression(),
prop, privateNamesMap, state));
break;
case isInstance && isPrivate && isMethod && privateFieldsAsProperties:
instanceNodes.unshift(buildPrivateMethodInitLoose(_core.types.thisExpression(), prop, privateNamesMap));
pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
instanceNodes.unshift(buildPrivateMethodInitLoose(_core.types.thisExpression(),
prop, privateNamesMap));
pureStaticNodes.push(buildPrivateMethodDeclaration(
prop, privateNamesMap, privateFieldsAsProperties));
break;
case isInstance && isPrivate && isMethod && !privateFieldsAsProperties:
instanceNodes.unshift(buildPrivateInstanceMethodInitSpec(_core.types.thisExpression(), prop, privateNamesMap, state));
pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
instanceNodes.unshift(buildPrivateInstanceMethodInitSpec(_core.types.thisExpression(),
prop, privateNamesMap, state));
pureStaticNodes.push(buildPrivateMethodDeclaration(
prop, privateNamesMap, privateFieldsAsProperties));
break;
case isStatic && isPrivate && isMethod && !privateFieldsAsProperties:
needsClassRef = true;
staticNodes.unshift(buildPrivateStaticFieldInitSpec(prop, privateNamesMap));
pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
staticNodes.unshift(
buildPrivateStaticFieldInitSpec(prop, privateNamesMap));
pureStaticNodes.push(buildPrivateMethodDeclaration(
prop, privateNamesMap, privateFieldsAsProperties));
break;
case isStatic && isPrivate && isMethod && privateFieldsAsProperties:
needsClassRef = true;
staticNodes.unshift(buildPrivateStaticMethodInitLoose(_core.types.cloneNode(ref), prop, state, privateNamesMap));
pureStaticNodes.push(buildPrivateMethodDeclaration(prop, privateNamesMap, privateFieldsAsProperties));
staticNodes.unshift(buildPrivateStaticMethodInitLoose(_core.types.cloneNode(ref),
prop, state, privateNamesMap));
pureStaticNodes.push(buildPrivateMethodDeclaration(
prop, privateNamesMap, privateFieldsAsProperties));
break;
case isInstance && isPublic && isField && setPublicClassFields:
instanceNodes.push(buildPublicFieldInitLoose(_core.types.thisExpression(), prop));
break;
case isInstance && isPublic && isField && !setPublicClassFields:
instanceNodes.push(buildPublicFieldInitSpec(_core.types.thisExpression(), prop, state));
instanceNodes.push(
buildPublicFieldInitSpec(_core.types.thisExpression(), prop, state));
break;
default:

@@ -959,3 +854,2 @@ throw new Error("Unreachable.");

}
return {

@@ -965,3 +859,2 @@ staticNodes: staticNodes.filter(Boolean),

pureStaticNodes: pureStaticNodes.filter(Boolean),
wrapClass(path) {

@@ -971,3 +864,2 @@ for (const prop of props) {

}
if (injectSuperRef) {

@@ -979,5 +871,3 @@ path.scope.push({

}
if (!needsClassRef) return path;
if (path.isClassExpression()) {

@@ -991,6 +881,4 @@ path.scope.push({

}
return path;
}
};

@@ -997,0 +885,0 @@ }

40

lib/index.js

@@ -25,22 +25,12 @@ "use strict";

});
var _core = require("@babel/core");
var _helperFunctionName = require("@babel/helper-function-name");
var _helperSplitExportDeclaration = require("@babel/helper-split-export-declaration");
var _fields = require("./fields");
var _decorators = require("./decorators");
var _misc = require("./misc");
var _features = require("./features");
var _typescript = require("./typescript");
const version = "7.19.0".split(".").reduce((v, x) => v * 1e5 + +x, 0);
const version = "7.20.2".split(".").reduce((v, x) => v * 1e5 + +x, 0);
const versionKey = "@babel/plugin-class-features/version";
function createClassFeaturePlugin({

@@ -60,14 +50,10 @@ name,

const noDocumentAll = api.assumption("noDocumentAll");
if (loose === true) {
const explicit = [];
if (setPublicClassFields !== undefined) {
explicit.push(`"setPublicClassFields"`);
}
if (privateFieldsAsProperties !== undefined) {
explicit.push(`"privateFieldsAsProperties"`);
}
if (explicit.length !== 0) {

@@ -77,3 +63,2 @@ console.warn(`[${name}]: You are using the "loose: true" option and you are` + ` explicitly setting a value for the ${explicit.join(" and ")}` + ` assumption${explicit.length > 1 ? "s" : ""}. The "loose" option` + ` can cause incompatibilities with the other class features` + ` plugins, so it's recommended that you replace it with the` + ` following top-level option:\n` + `\t"assumptions": {\n` + `\t\t"setPublicClassFields": true,\n` + `\t\t"privateFieldsAsProperties": true\n` + `\t}`);

}
return {

@@ -83,6 +68,4 @@ name,

inherits,
pre(file) {
(0, _features.enableFeature)(file, feature, loose);
if (!file.get(versionKey) || file.get(versionKey) < version) {

@@ -92,3 +75,2 @@ file.set(versionKey, version);

},
visitor: {

@@ -109,8 +91,7 @@ Class(path, {

const body = path.get("body");
for (const path of body.get("body")) {
if ((path.isClassProperty() || path.isClassMethod()) && path.node.computed) {
if (
(path.isClassProperty() || path.isClassMethod()) && path.node.computed) {
computedPaths.push(path);
}
if (path.isPrivate()) {

@@ -122,3 +103,2 @@ const {

const setName = `set ${name}`;
if (path.isClassPrivateMethod()) {

@@ -129,3 +109,2 @@ if (path.node.kind === "get") {

}
privateNames.add(getName).add(name);

@@ -136,3 +115,2 @@ } else if (path.node.kind === "set") {

}
privateNames.add(setName).add(name);

@@ -144,7 +122,5 @@ }

}
privateNames.add(name);
}
}
if (path.isClassMethod({

@@ -156,3 +132,2 @@ kind: "constructor"

elements.push(path);
if (path.isProperty() || path.isPrivate() || path.isStaticBlock != null && path.isStaticBlock()) {

@@ -163,3 +138,2 @@ props.push(path);

}
{

@@ -170,3 +144,2 @@ if (!props.length && !isDecorated) return;

let ref;
if (!innerBinding || path.isClassExpression()) {

@@ -204,3 +177,2 @@ (0, _helperFunctionName.default)(path);

}
if (instanceNodes.length > 0) {

@@ -211,3 +183,2 @@ (0, _misc.injectInitialization)(path, constructor, instanceNodes, (referenceVisitor, state) => {

}
for (const prop of props) {

@@ -222,7 +193,5 @@ if (_core.types.isStaticBlock != null && _core.types.isStaticBlock(prop.node) || prop.node.static) continue;

wrappedPath.insertBefore([...privateNamesNodes, ...keysNodes]);
if (staticNodes.length > 0) {
wrappedPath.insertAfter(staticNodes);
}
if (pureStaticNodes.length > 0) {

@@ -232,3 +201,2 @@ wrappedPath.find(parent => parent.isStatement() || parent.isDeclaration()).insertAfter(pureStaticNodes);

},
ExportDefaultDeclaration(path, {

@@ -240,3 +208,2 @@ file

const decl = path.get("declaration");
if (decl.isClassDeclaration() && (0, _decorators.hasDecorators)(decl.node)) {

@@ -251,3 +218,2 @@ if (decl.node.id) {

}
}

@@ -254,0 +220,0 @@ };

25

lib/misc.js

@@ -8,7 +8,4 @@ "use strict";

exports.injectInitialization = injectInitialization;
var _core = require("@babel/core");
var _helperEnvironmentVisitor = require("@babel/helper-environment-visitor");
const findBareSupers = _core.traverse.visitors.merge([{

@@ -20,3 +17,2 @@ Super(path) {

} = path;
if (parentPath.isCallExpression({

@@ -28,5 +24,3 @@ callee: node

}
}, _helperEnvironmentVisitor.default]);
const referenceVisitor = {

@@ -36,3 +30,2 @@ "TSTypeAnnotation|TypeAnnotation"(path) {

},
ReferencedIdentifier(path, {

@@ -46,11 +39,7 @@ scope

}
};
function handleClassTDZ(path, state) {
if (state.classBinding && state.classBinding === path.scope.getBinding(path.node.name)) {
const classNameTDZError = state.file.addHelper("classNameTDZError");
const throwNode = _core.types.callExpression(classNameTDZError, [_core.types.stringLiteral(path.node.name)]);
path.replaceWith(_core.types.sequenceExpression([throwNode, path.node]));

@@ -60,14 +49,10 @@ path.skip();

}
const classFieldDefinitionEvaluationTDZVisitor = {
ReferencedIdentifier: handleClassTDZ
};
function injectInitialization(path, constructor, nodes, renamer) {
if (!nodes.length) return;
const isDerived = !!path.node.superClass;
if (!constructor) {
const newConstructor = _core.types.classMethod("constructor", _core.types.identifier("constructor"), [], _core.types.blockStatement([]));
if (isDerived) {

@@ -77,6 +62,4 @@ newConstructor.params = [_core.types.restElement(_core.types.identifier("args"))];

}
[constructor] = path.get("body").unshiftContainer("body", newConstructor);
}
if (renamer) {

@@ -87,3 +70,2 @@ renamer(referenceVisitor, {

}
if (isDerived) {

@@ -93,3 +75,2 @@ const bareSupers = [];

let isFirst = true;
for (const bareSuper of bareSupers) {

@@ -107,3 +88,2 @@ if (isFirst) {

}
function extractComputedKeys(path, computedPaths, file) {

@@ -115,6 +95,4 @@ const declarations = [];

};
for (const computedPath of computedPaths) {
const computedKey = computedPath.get("key");
if (computedKey.isReferencedIdentifier()) {

@@ -125,5 +103,3 @@ handleClassTDZ(computedKey, state);

}
const computedNode = computedPath.node;
if (!computedKey.isConstantExpression()) {

@@ -139,3 +115,2 @@ const ident = path.scope.generateUidIdentifierBasedOnNode(computedNode.key);

}
return declarations;

@@ -142,0 +117,0 @@ }

2

lib/typescript.js

@@ -7,4 +7,4 @@ "use strict";

exports.assertFieldTransformed = assertFieldTransformed;
function assertFieldTransformed(path) {
function assertFieldTransformed(path) {
if (path.node.declare) {

@@ -11,0 +11,0 @@ throw path.buildCodeFrameError(`TypeScript 'declare' fields must first be transformed by ` + `@babel/plugin-transform-typescript.\n` + `If you have already enabled that plugin (or '@babel/preset-typescript'), make sure ` + `that it runs before any plugin related to additional class features:\n` + ` - @babel/plugin-proposal-class-properties\n` + ` - @babel/plugin-proposal-private-methods\n` + ` - @babel/plugin-proposal-decorators`);

8

package.json
{
"name": "@babel/helper-create-class-features-plugin",
"version": "7.19.0",
"version": "7.20.2",
"author": "The Babel Team (https://babel.dev/team)",

@@ -26,3 +26,3 @@ "license": "MIT",

"@babel/helper-optimise-call-expression": "^7.18.6",
"@babel/helper-replace-supers": "^7.18.9",
"@babel/helper-replace-supers": "^7.19.1",
"@babel/helper-split-export-declaration": "^7.18.6"

@@ -34,6 +34,6 @@ },

"devDependencies": {
"@babel/core": "^7.19.0",
"@babel/core": "^7.20.2",
"@babel/helper-plugin-test-runner": "^7.18.6",
"@babel/plugin-syntax-class-static-block": "^7.14.5",
"@babel/preset-env": "^7.19.0"
"@babel/preset-env": "^7.20.2"
},

@@ -40,0 +40,0 @@ "engines": {

lib/decorators.js.map

Sorry, the diff of this file is not supported yet

lib/features.js.map

Sorry, the diff of this file is not supported yet

lib/fields.js.map

Sorry, the diff of this file is not supported yet

lib/index.js.map

Sorry, the diff of this file is not supported yet

lib/misc.js.map

Sorry, the diff of this file is not supported yet

lib/typescript.js.map

Sorry, the diff of this file is not supported yet

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