@prisma-next/contract-authoring - npm Package Compare versions

Comparing version 0.14.0 to 0.15.0-dev.1

src/enum-type.ts

+import type { ColumnTypeDescriptor } from '@prisma-next/framework-components/codec';
+import { blindCast } from '@prisma-next/utils/casts';
+
+/**
+ * A single enum member produced by `member()`. The `Name` and `Value` generics
+ * are preserved as literal types so `enumType()` can carry the ordered value
+ * tuple in its return type. `Value` is whatever the codec dictates — its type
+ * is constrained at `enumType` against the codec's input type, not here.
+ */
+export interface EnumMember<Name extends string, Value> {
+  readonly name: Name;
+  readonly value: Value;
+}
+
+/**
+ * Declare an enum member. The `value` defaults to `name` when omitted. The
+ * value is an unconstrained literal here; `enumType` constrains it against the
+ * codec's input type. Both generics are preserved as literals so downstream
+ * `enumType` carries the value union in its type; the value is serialized to its
+ * codec string form only at lowering.
+ */
+export function member<const Name extends string>(name: Name): EnumMember<Name, Name>;
+export function member<const Name extends string, const Value>(
+  name: Name,
+  value: Value,
+): EnumMember<Name, Value>;
+export function member<const Name extends string, const Value = Name>(
+  name: Name,
+  value?: Value,
+): EnumMember<Name, Value> {
+  return {
+    name,
+    value: blindCast<
+      Value,
+      'overload signatures enforce Value=Name when value is omitted; default generic Value=Name makes this safe'
+    >(value === undefined ? name : value),
+  };
+}
+
+type MembersToValues<Members extends readonly EnumMember<string, unknown>[]> = {
+  readonly [K in keyof Members]: Members[K] extends EnumMember<string, infer V> ? V : never;
+};
+
+type MembersToNames<Members extends readonly EnumMember<string, unknown>[]> = {
+  readonly [K in keyof Members]: Members[K] extends EnumMember<infer N, unknown> ? N : never;
+};
+
+type MembersAccessorMap<Members extends readonly EnumMember<string, unknown>[]> = {
+  readonly [M in Members[number] as M['name']]: M['value'];
+};
+
+// String-key brand rather than unique symbol: tsdown inlines a fresh unique
+// symbol into each extension's .d.mts when the source package is transitive,
+// breaking nominal type identity across chunk boundaries. A string constant
+// survives .d.mts de-duplication because string equality is preserved by value.
+// Mirrors the FILTER_EXPR_BRAND pattern in mongo-query-ast/filter-expressions.ts.
+export const ENUM_TYPE_HANDLE_BRAND = '__prismaNextEnumTypeHandle__';
+
+/** Authoring handle returned by `enumType()`. Generic over the ordered value tuple so `const Role = enumType(...)` retains literal types. */
+export interface EnumTypeHandle<
+  Name extends string = string,
+  Values extends readonly unknown[] = readonly unknown[],
+  Names extends readonly string[] = readonly string[],
+  MembersMap extends Record<string, unknown> = Record<string, unknown>,
+> {
+  /** Internal brand for lowering-pipeline detection. */
+  readonly [ENUM_TYPE_HANDLE_BRAND]: true;
+
+  /** The enum's declared name (used as the key in domain `enum` / storage `valueSet`). */
+  readonly enumName: Name;
+
+  /** codecId from the codec passed to `enumType`. */
+  readonly codecId: string;
+
+  /** nativeType from the codec passed to `enumType`. */
+  readonly nativeType: string;
+
+  /** Ordered member list for lowering (name + value pairs). */
+  readonly enumMembers: readonly { readonly name: string; readonly value: Values[number] }[];
+
+  /** Ordered literal value tuple. Declaration order is preserved. */
+  readonly values: Values;
+
+  /** Ordered literal name tuple. Declaration order is preserved. */
+  readonly names: Names;
+
+  /**
+   * Namespaced accessor map: `Role.members.User === 'user'`.
+   * Namespaced under `.members` to avoid collisions with `.values` / `.has`.
+   */
+  readonly members: MembersMap;
+
+  /** Returns `true` if `v` is a declared member value. */
+  has(v: Values[number]): boolean;
+
+  /** Returns the member name for a value, or `undefined` if not found. */
+  nameOf(v: Values[number]): string | undefined;
+
+  /** Returns the zero-based declaration index of a value, or `-1` if not found. */
+  ordinalOf(v: Values[number]): number;
+}
+
+/**
+ * A codec typemap: codecId → `{ input, output }`, the same shape the query
+ * lanes consume. The bound `enumType` wrappers supply the target pack's
+ * typemap; the core defaults to an empty map (no codec is known), so member
+ * values stay unconstrained.
+ */
+export type CodecTypeMap = Record<string, { readonly input?: unknown }>;
+
+/**
+ * The application input type the codec dictates for an enum's member values:
+ * looks `Codec['codecId']` up in the supplied codec typemap. When the codecId
+ * isn't in the map the input is unconstrained, so any member-value literal is
+ * accepted and inferred verbatim.
+ */
+export type CodecInput<
+  CodecTypes extends CodecTypeMap,
+  Codec extends { readonly codecId: string },
+> = Codec['codecId'] extends keyof CodecTypes
+  ? CodecTypes[Codec['codecId']] extends { readonly input: infer In }
+    ? In
+    : unknown
+  : unknown;
+
+/**
+ * Declare a domain enum for use in TS-authoring contracts.
+ *
+ * - The codec is an explicit required argument — the `codecId` and
+ *   `nativeType` are taken from the passed `ColumnTypeDescriptor` (e.g.
+ *   `{ codecId: 'pg/text@1', nativeType: 'text' }` from a field preset
+ *   output or a direct inline object).
+ * - `const` generics on the members spread preserve the ordered literal
+ *   value tuple so `Role.values` is `readonly ['user','admin']`, not
+ *   `string[]`.
+ * - Well-formedness assertions at construction: non-empty member list;
+ *   unique names; unique values.
+ *
+ * The returned handle wires into `field.namedType(handle)` to set
+ * `valueSet` refs on both the domain field and the storage column.
+ *
+ * @example
+ * ```ts
+ * const Role = enumType('Role', { codecId: 'pg/text@1', nativeType: 'text' },
+ *   member('User', 'user'),
+ *   member('Admin', 'admin'),
+ * );
+ * // Role.values → readonly ['user', 'admin']
+ * // Role.members.User → 'user'
+ * ```
+ */
+export function enumType<
+  CodecTypes extends CodecTypeMap = Record<string, never>,
+  const Name extends string = string,
+  const Codec extends Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'> = Pick<
+    ColumnTypeDescriptor,
+    'codecId' | 'nativeType'
+  >,
+  const Members extends readonly [
+    EnumMember<string, CodecInput<CodecTypes, Codec>>,
+    ...EnumMember<string, CodecInput<CodecTypes, Codec>>[],
+  ] = readonly [EnumMember<string, CodecInput<CodecTypes, Codec>>],
+>(
+  name: Name,
+  codec: Codec,
+  ...members: Members
+): EnumTypeHandle<
+  Name,
+  MembersToValues<[...Members]>,
+  MembersToNames<[...Members]>,
+  MembersAccessorMap<[...Members]>
+>;
+export function enumType(
+  name: string,
+  codec: Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>,
+  ...members: EnumMember<string, unknown>[]
+): EnumTypeHandle;
+export function enumType(
+  name: string,
+  codec: Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>,
+  ...members: EnumMember<string, unknown>[]
+): EnumTypeHandle {
+  if (members.length === 0) {
+    throw new Error(`enumType("${name}"): must have at least one member.`);
+  }
+
+  const seenNames = new Set<string>();
+  const seenValues = new Set<string>();
+  for (const m of members) {
+    if (seenNames.has(m.name)) {
+      throw new Error(
+        `enumType("${name}"): duplicate member name "${m.name}". Member names must be unique.`,
+      );
+    }
+    seenNames.add(m.name);
+
+    const loweredValue = String(m.value);
+    if (seenValues.has(loweredValue)) {
+      throw new Error(
+        `enumType("${name}"): duplicate member value "${loweredValue}". Member values must be unique.`,
+      );
+    }
+    seenValues.add(loweredValue);
+  }
+
+  const values = Object.freeze(members.map((m) => m.value));
+  const names = Object.freeze(members.map((m) => m.name));
+  const enumMembers = Object.freeze(members.map((m) => ({ name: m.name, value: m.value })));
+
+  const membersAccessor = Object.freeze(Object.fromEntries(members.map((m) => [m.name, m.value])));
+
+  const valueSet = new Set(values);
+  const valueToName = new Map(members.map((m) => [m.value, m.name]));
+  const valueToOrdinal = new Map(values.map((v, i) => [v, i]));
+
+  return {
+    [ENUM_TYPE_HANDLE_BRAND]: true,
+    enumName: name,
+    codecId: codec.codecId,
+    nativeType: codec.nativeType,
+    enumMembers,
+    values,
+    names,
+    members: membersAccessor,
+    has: (v: unknown) => valueSet.has(v),
+    nameOf: (v: unknown) => valueToName.get(v),
+    ordinalOf: (v: unknown) => valueToOrdinal.get(v) ?? -1,
+  };
+}
+
+/**
+ * The signature of an `enumType` whose codec typemap is already bound — the
+ * shape a target-bound wrapper (e.g. `@prisma-next/postgres/contract-builder`)
+ * exposes. The member values are constrained to the codec's input type drawn
+ * from `CodecTypes`, while `Name`, `Codec`, and the member tuple still infer
+ * from the call.
+ */
+export type BoundEnumType<CodecTypes extends CodecTypeMap> = <
+  const Name extends string,
+  const Codec extends Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>,
+  const Members extends readonly [
+    EnumMember<string, CodecInput<CodecTypes, Codec>>,
+    ...EnumMember<string, CodecInput<CodecTypes, Codec>>[],
+  ],
+>(
+  name: Name,
+  codec: Codec,
+  ...members: Members
+) => EnumTypeHandle<
+  Name,
+  MembersToValues<[...Members]>,
+  MembersToNames<[...Members]>,
+  MembersAccessorMap<[...Members]>
+>;
+
+/**
+ * Bind `enumType` to a target's codec typemap. The returned function is the
+ * same runtime `enumType`, retyped so member values are constrained to the
+ * codec's input type. Target packages call this with their pack's
+ * `ExtractCodecTypesFromPack<Pack>` to expose a codec-aware `enumType`.
+ */
+export function bindEnumType<CodecTypes extends CodecTypeMap>(): BoundEnumType<CodecTypes> {
+  return enumType;
+}
+
+/**
+ * Returns true when the value is an `EnumTypeHandle` produced by
+ * `enumType()`. Used in the lowering pipeline to detect enum handles
+ * in field state without importing the brand key at every call site.
+ */
+export function isEnumTypeHandle(value: unknown): value is EnumTypeHandle {
+  return (
+    typeof value === 'object' &&
+    value !== null &&
+    Reflect.get(value, ENUM_TYPE_HANDLE_BRAND) === true
+  );
+}

dist/index.d.mts

 import { AuthoringEntityContext, AuthoringEntityTypeDescriptor, AuthoringEntityTypeNamespace } from "@prisma-next/framework-components/authoring";
+import { ColumnTypeDescriptor } from "@prisma-next/framework-components/codec";
 
@@ -85,3 +86,128 @@ //#region src/capability-registry.d.ts
 //#endregion
-export { type AuthoringNamespaceKey, type CapabilityMatrix, type EntityHelperFactoryOptions, type EntityHelperFunction, type EntityHelpersFromNamespace, type ExtractAuthoringNamespaceFromPack, type ForeignKeyDefaultsState, type IndexDef, type MergeExtensionAuthoringNamespaces, type UnionToIntersection, createEntityHelpersFromNamespace, mergeCapabilityMatrices };
+//#region src/enum-type.d.ts
+/**
+ * A single enum member produced by `member()`. The `Name` and `Value` generics
+ * are preserved as literal types so `enumType()` can carry the ordered value
+ * tuple in its return type. `Value` is whatever the codec dictates — its type
+ * is constrained at `enumType` against the codec's input type, not here.
+ */
+interface EnumMember<Name extends string, Value> {
+  readonly name: Name;
+  readonly value: Value;
+}
+/**
+ * Declare an enum member. The `value` defaults to `name` when omitted. The
+ * value is an unconstrained literal here; `enumType` constrains it against the
+ * codec's input type. Both generics are preserved as literals so downstream
+ * `enumType` carries the value union in its type; the value is serialized to its
+ * codec string form only at lowering.
+ */
+declare function member<const Name extends string>(name: Name): EnumMember<Name, Name>;
+declare function member<const Name extends string, const Value>(name: Name, value: Value): EnumMember<Name, Value>;
+type MembersToValues<Members extends readonly EnumMember<string, unknown>[]> = { readonly [K in keyof Members]: Members[K] extends EnumMember<string, infer V> ? V : never };
+type MembersToNames<Members extends readonly EnumMember<string, unknown>[]> = { readonly [K in keyof Members]: Members[K] extends EnumMember<infer N, unknown> ? N : never };
+type MembersAccessorMap<Members extends readonly EnumMember<string, unknown>[]> = { readonly [M in Members[number] as M['name']]: M['value'] };
+declare const ENUM_TYPE_HANDLE_BRAND = "__prismaNextEnumTypeHandle__";
+/** Authoring handle returned by `enumType()`. Generic over the ordered value tuple so `const Role = enumType(...)` retains literal types. */
+interface EnumTypeHandle<Name extends string = string, Values extends readonly unknown[] = readonly unknown[], Names extends readonly string[] = readonly string[], MembersMap extends Record<string, unknown> = Record<string, unknown>> {
+  /** Internal brand for lowering-pipeline detection. */
+  readonly [ENUM_TYPE_HANDLE_BRAND]: true;
+  /** The enum's declared name (used as the key in domain `enum` / storage `valueSet`). */
+  readonly enumName: Name;
+  /** codecId from the codec passed to `enumType`. */
+  readonly codecId: string;
+  /** nativeType from the codec passed to `enumType`. */
+  readonly nativeType: string;
+  /** Ordered member list for lowering (name + value pairs). */
+  readonly enumMembers: readonly {
+    readonly name: string;
+    readonly value: Values[number];
+  }[];
+  /** Ordered literal value tuple. Declaration order is preserved. */
+  readonly values: Values;
+  /** Ordered literal name tuple. Declaration order is preserved. */
+  readonly names: Names;
+  /**
+   * Namespaced accessor map: `Role.members.User === 'user'`.
+   * Namespaced under `.members` to avoid collisions with `.values` / `.has`.
+   */
+  readonly members: MembersMap;
+  /** Returns `true` if `v` is a declared member value. */
+  has(v: Values[number]): boolean;
+  /** Returns the member name for a value, or `undefined` if not found. */
+  nameOf(v: Values[number]): string | undefined;
+  /** Returns the zero-based declaration index of a value, or `-1` if not found. */
+  ordinalOf(v: Values[number]): number;
+}
+/**
+ * A codec typemap: codecId → `{ input, output }`, the same shape the query
+ * lanes consume. The bound `enumType` wrappers supply the target pack's
+ * typemap; the core defaults to an empty map (no codec is known), so member
+ * values stay unconstrained.
+ */
+type CodecTypeMap = Record<string, {
+  readonly input?: unknown;
+}>;
+/**
+ * The application input type the codec dictates for an enum's member values:
+ * looks `Codec['codecId']` up in the supplied codec typemap. When the codecId
+ * isn't in the map the input is unconstrained, so any member-value literal is
+ * accepted and inferred verbatim.
+ */
+type CodecInput<CodecTypes extends CodecTypeMap, Codec extends {
+  readonly codecId: string;
+}> = Codec['codecId'] extends keyof CodecTypes ? CodecTypes[Codec['codecId']] extends {
+  readonly input: infer In;
+} ? In : unknown : unknown;
+/**
+ * Declare a domain enum for use in TS-authoring contracts.
+ *
+ * - The codec is an explicit required argument — the `codecId` and
+ *   `nativeType` are taken from the passed `ColumnTypeDescriptor` (e.g.
+ *   `{ codecId: 'pg/text@1', nativeType: 'text' }` from a field preset
+ *   output or a direct inline object).
+ * - `const` generics on the members spread preserve the ordered literal
+ *   value tuple so `Role.values` is `readonly ['user','admin']`, not
+ *   `string[]`.
+ * - Well-formedness assertions at construction: non-empty member list;
+ *   unique names; unique values.
+ *
+ * The returned handle wires into `field.namedType(handle)` to set
+ * `valueSet` refs on both the domain field and the storage column.
+ *
+ * @example
+ * ```ts
+ * const Role = enumType('Role', { codecId: 'pg/text@1', nativeType: 'text' },
+ *   member('User', 'user'),
+ *   member('Admin', 'admin'),
+ * );
+ * // Role.values → readonly ['user', 'admin']
+ * // Role.members.User → 'user'
+ * ```
+ */
+declare function enumType<CodecTypes extends CodecTypeMap = Record<string, never>, const Name extends string = string, const Codec extends Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'> = Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>, const Members extends readonly [EnumMember<string, CodecInput<CodecTypes, Codec>>, ...EnumMember<string, CodecInput<CodecTypes, Codec>>[]] = readonly [EnumMember<string, CodecInput<CodecTypes, Codec>>]>(name: Name, codec: Codec, ...members: Members): EnumTypeHandle<Name, MembersToValues<[...Members]>, MembersToNames<[...Members]>, MembersAccessorMap<[...Members]>>;
+declare function enumType(name: string, codec: Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>, ...members: EnumMember<string, unknown>[]): EnumTypeHandle;
+/**
+ * The signature of an `enumType` whose codec typemap is already bound — the
+ * shape a target-bound wrapper (e.g. `@prisma-next/postgres/contract-builder`)
+ * exposes. The member values are constrained to the codec's input type drawn
+ * from `CodecTypes`, while `Name`, `Codec`, and the member tuple still infer
+ * from the call.
+ */
+type BoundEnumType<CodecTypes extends CodecTypeMap> = <const Name extends string, const Codec extends Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>, const Members extends readonly [EnumMember<string, CodecInput<CodecTypes, Codec>>, ...EnumMember<string, CodecInput<CodecTypes, Codec>>[]]>(name: Name, codec: Codec, ...members: Members) => EnumTypeHandle<Name, MembersToValues<[...Members]>, MembersToNames<[...Members]>, MembersAccessorMap<[...Members]>>;
+/**
+ * Bind `enumType` to a target's codec typemap. The returned function is the
+ * same runtime `enumType`, retyped so member values are constrained to the
+ * codec's input type. Target packages call this with their pack's
+ * `ExtractCodecTypesFromPack<Pack>` to expose a codec-aware `enumType`.
+ */
+declare function bindEnumType<CodecTypes extends CodecTypeMap>(): BoundEnumType<CodecTypes>;
+/**
+ * Returns true when the value is an `EnumTypeHandle` produced by
+ * `enumType()`. Used in the lowering pipeline to detect enum handles
+ * in field state without importing the brand key at every call site.
+ */
+declare function isEnumTypeHandle(value: unknown): value is EnumTypeHandle;
+//#endregion
+export { type AuthoringNamespaceKey, type BoundEnumType, type CapabilityMatrix, type CodecInput, type CodecTypeMap, ENUM_TYPE_HANDLE_BRAND, type EntityHelperFactoryOptions, type EntityHelperFunction, type EntityHelpersFromNamespace, type EnumMember, type EnumTypeHandle, type ExtractAuthoringNamespaceFromPack, type ForeignKeyDefaultsState, type IndexDef, type MergeExtensionAuthoringNamespaces, type UnionToIntersection, bindEnumType, createEntityHelpersFromNamespace, enumType, isEnumTypeHandle, member, mergeCapabilityMatrices };
 //# sourceMappingURL=index.d.mts.map

dist/index.d.mts.map

@@ -1,1 +0,1 @@
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dist/index.mjs

 import { instantiateAuthoringEntityType } from "@prisma-next/framework-components/authoring";
+import { blindCast } from "@prisma-next/utils/casts";
 //#region src/capability-registry.ts
@@ -58,4 +59,65 @@ /**
 //#endregion
-export { createEntityHelpersFromNamespace, mergeCapabilityMatrices };
+//#region src/enum-type.ts
+function member(name, value) {
+	return {
+		name,
+		value: blindCast(value === void 0 ? name : value)
+	};
+}
+const ENUM_TYPE_HANDLE_BRAND = "__prismaNextEnumTypeHandle__";
+function enumType(name, codec, ...members) {
+	if (members.length === 0) throw new Error(`enumType("${name}"): must have at least one member.`);
+	const seenNames = /* @__PURE__ */ new Set();
+	const seenValues = /* @__PURE__ */ new Set();
+	for (const m of members) {
+		if (seenNames.has(m.name)) throw new Error(`enumType("${name}"): duplicate member name "${m.name}". Member names must be unique.`);
+		seenNames.add(m.name);
+		const loweredValue = String(m.value);
+		if (seenValues.has(loweredValue)) throw new Error(`enumType("${name}"): duplicate member value "${loweredValue}". Member values must be unique.`);
+		seenValues.add(loweredValue);
+	}
+	const values = Object.freeze(members.map((m) => m.value));
+	const names = Object.freeze(members.map((m) => m.name));
+	const enumMembers = Object.freeze(members.map((m) => ({
+		name: m.name,
+		value: m.value
+	})));
+	const membersAccessor = Object.freeze(Object.fromEntries(members.map((m) => [m.name, m.value])));
+	const valueSet = new Set(values);
+	const valueToName = new Map(members.map((m) => [m.value, m.name]));
+	const valueToOrdinal = new Map(values.map((v, i) => [v, i]));
+	return {
+		[ENUM_TYPE_HANDLE_BRAND]: true,
+		enumName: name,
+		codecId: codec.codecId,
+		nativeType: codec.nativeType,
+		enumMembers,
+		values,
+		names,
+		members: membersAccessor,
+		has: (v) => valueSet.has(v),
+		nameOf: (v) => valueToName.get(v),
+		ordinalOf: (v) => valueToOrdinal.get(v) ?? -1
+	};
+}
+/**
+* Bind `enumType` to a target's codec typemap. The returned function is the
+* same runtime `enumType`, retyped so member values are constrained to the
+* codec's input type. Target packages call this with their pack's
+* `ExtractCodecTypesFromPack<Pack>` to expose a codec-aware `enumType`.
+*/
+function bindEnumType() {
+	return enumType;
+}
+/**
+* Returns true when the value is an `EnumTypeHandle` produced by
+* `enumType()`. Used in the lowering pipeline to detect enum handles
+* in field state without importing the brand key at every call site.
+*/
+function isEnumTypeHandle(value) {
+	return typeof value === "object" && value !== null && Reflect.get(value, "__prismaNextEnumTypeHandle__") === true;
+}
+//#endregion
+export { ENUM_TYPE_HANDLE_BRAND, bindEnumType, createEntityHelpersFromNamespace, enumType, isEnumTypeHandle, member, mergeCapabilityMatrices };
 
 //# sourceMappingURL=index.mjs.map

dist/index.mjs.map

@@ -1,1 +0,1 @@
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The per-namespace shape (`field`, `type`,\n * `entityTypes`) is parameterized by the discriminator key so each\n * namespace can reuse the same extractor + cross-pack merger without\n * re-deriving the template per family. Call sites flatten merged\n * `entityTypes` onto the user-facing top-level helpers surface\n * alongside the built-in `model` / `rel` (e.g. `helpers.enum(...)`).\n * The contribution data structure stays as\n * `authoring.entityTypes.<name>` — pack authors keep contributing\n * through the namespace; the composed-helpers template performs the\n * rename in the type system.\n *\n * SQL-specific composition (the `field` / `model` / `rel` / `type` core\n * helpers, the SQL index-types merge) lives in the SQL contract-ts\n * package and imports from here.\n */\n\nexport type UnionToIntersection<U> = (U extends unknown ? (value: U) => void : never) extends (\n  value: infer I,\n) => void\n  ? I\n  : never;\n\nexport type AuthoringNamespaceKey = 'field' | 'type' | 'entityTypes';\n\nexport type ExtractAuthoringNamespaceFromPack<\n  Pack,\n  Key extends AuthoringNamespaceKey,\n  EmptyNamespace,\n> = Pack extends {\n  readonly authoring?: { readonly [P in Key]?: infer Namespace };\n}\n  ? Namespace extends Record<string, unknown>\n    ? Namespace\n    : EmptyNamespace\n  : EmptyNamespace;\n\nexport type MergeExtensionAuthoringNamespaces<\n  ExtensionPacks,\n  Key extends AuthoringNamespaceKey,\n  EmptyNamespace = Record<never, never>,\n> =\n  ExtensionPacks extends Record<string, unknown>\n    ? keyof ExtensionPacks extends never\n      ? EmptyNamespace\n      : UnionToIntersection<\n          {\n            [K in keyof ExtensionPacks]: ExtractAuthoringNamespaceFromPack<\n              ExtensionPacks[K],\n              Key,\n              EmptyNamespace\n            >;\n          }[keyof ExtensionPacks]\n        >\n    : EmptyNamespace;\n\n/**\n * Entity-helper shape derivation. 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+{"version":3,"file":"index.mjs","names":[],"sources":["../src/capability-registry.ts","../src/composed-helpers-scaffolding.ts","../src/enum-type.ts"],"sourcesContent":["export type CapabilityMatrix = Readonly<Record<string, Readonly<Record<string, boolean>>>>;\n\n/**\n * Deep-merges any number of capability matrices into a single matrix.\n *\n * Merge is purely structural — namespaces and capability flags from later\n * sources overlay earlier ones. Undefined entries are skipped so callers\n * can pass optional sources without pre-filtering.\n *\n * The helper is target-agnostic: it contains no SQL or family-specific\n * knowledge. Higher layers contribute their own capability matrices (for\n * example, a target pack, an extension pack, or the contract author's\n * own `capabilities` block) and call this helper to fold them together.\n */\nexport function mergeCapabilityMatrices(\n  ...sources: ReadonlyArray<CapabilityMatrix | undefined>\n): Record<string, Record<string, boolean>> {\n  const result: Record<string, Record<string, boolean>> = {};\n  for (const source of sources) {\n    if (source === undefined) continue;\n    for (const [namespace, capabilities] of Object.entries(source)) {\n      const existing = result[namespace];\n      result[namespace] = existing ? { ...existing, ...capabilities } : { ...capabilities };\n    }\n  }\n  return result;\n}\n","import type {\n  AuthoringEntityContext,\n  AuthoringEntityTypeDescriptor,\n  AuthoringEntityTypeNamespace,\n} from '@prisma-next/framework-components/authoring';\nimport { instantiateAuthoringEntityType } from '@prisma-next/framework-components/authoring';\n\n/**\n * Family-agnostic merge / instantiation scaffolding for pack-bag-driven\n * authoring contributions. The per-namespace shape (`field`, `type`,\n * `entityTypes`) is parameterized by the discriminator key so each\n * namespace can reuse the same extractor + cross-pack merger without\n * re-deriving the template per family. Call sites flatten merged\n * `entityTypes` onto the user-facing top-level helpers surface\n * alongside the built-in `model` / `rel` (e.g. `helpers.enum(...)`).\n * The contribution data structure stays as\n * `authoring.entityTypes.<name>` — pack authors keep contributing\n * through the namespace; the composed-helpers template performs the\n * rename in the type system.\n *\n * SQL-specific composition (the `field` / `model` / `rel` / `type` core\n * helpers, the SQL index-types merge) lives in the SQL contract-ts\n * package and imports from here.\n */\n\nexport type UnionToIntersection<U> = (U extends unknown ? (value: U) => void : never) extends (\n  value: infer I,\n) => void\n  ? I\n  : never;\n\nexport type AuthoringNamespaceKey = 'field' | 'type' | 'entityTypes';\n\nexport type ExtractAuthoringNamespaceFromPack<\n  Pack,\n  Key extends AuthoringNamespaceKey,\n  EmptyNamespace,\n> = Pack extends {\n  readonly authoring?: { readonly [P in Key]?: infer Namespace };\n}\n  ? Namespace extends Record<string, unknown>\n    ? Namespace\n    : EmptyNamespace\n  : EmptyNamespace;\n\nexport type MergeExtensionAuthoringNamespaces<\n  ExtensionPacks,\n  Key extends AuthoringNamespaceKey,\n  EmptyNamespace = Record<never, never>,\n> =\n  ExtensionPacks extends Record<string, unknown>\n    ? keyof ExtensionPacks extends never\n      ? EmptyNamespace\n      : UnionToIntersection<\n          {\n            [K in keyof ExtensionPacks]: ExtractAuthoringNamespaceFromPack<\n              ExtensionPacks[K],\n              Key,\n              EmptyNamespace\n            >;\n          }[keyof ExtensionPacks]\n        >\n    : EmptyNamespace;\n\n/**\n * Entity-helper shape derivation. Mirrors `FieldHelpersFromNamespace` /\n * `TypeHelpersFromNamespace` in the SQL package: leaf descriptors become\n * callable helpers; nested namespaces recurse.\n */\ntype ExtractFactoryInputAndOutput<Descriptor extends AuthoringEntityTypeDescriptor> =\n  Descriptor['output'] extends {\n    readonly factory: (input: infer Input, ctx: AuthoringEntityContext) => infer Output;\n  }\n    ? { input: Input; output: Output }\n    : { input: unknown; output: unknown };\n\nexport type EntityHelperFunction<Descriptor extends AuthoringEntityTypeDescriptor> =\n  ExtractFactoryInputAndOutput<Descriptor> extends { input: infer Input; output: infer Output }\n    ? (input: Input) => Output\n    : never;\n\nexport type EntityHelpersFromNamespace<Namespace> = {\n  readonly [K in keyof Namespace]: Namespace[K] extends AuthoringEntityTypeDescriptor\n    ? EntityHelperFunction<Namespace[K]>\n    : Namespace[K] extends Record<string, unknown>\n      ? 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Each leaf\n * descriptor becomes a function `(input) => factory(input, ctx)`;\n * nested namespace objects recurse.\n */\nexport function createEntityHelpersFromNamespace(\n  namespace: AuthoringEntityTypeNamespace,\n  options: EntityHelperFactoryOptions,\n  path: readonly string[] = [],\n): Record<string, unknown> {\n  const result: Record<string, unknown> = {};\n  for (const [key, value] of Object.entries(namespace)) {\n    const currentPath = [...path, key];\n    if (isLeafEntityDescriptor(value)) {\n      result[key] = createEntityHelper(currentPath.join('.'), value, options);\n      continue;\n    }\n    if (typeof value === 'object' && value !== null && !Array.isArray(value)) {\n      result[key] = createEntityHelpersFromNamespace(\n        value as AuthoringEntityTypeNamespace,\n        options,\n        currentPath,\n      );\n    }\n  }\n  return result;\n}\n\nfunction isLeafEntityDescriptor(value: unknown): value is AuthoringEntityTypeDescriptor {\n  if (\n    typeof value !== 'object' ||\n    value === null ||\n    (value as { kind?: unknown }).kind !== 'entity'\n  ) {\n    return false;\n  }\n  const discriminator = (value as { discriminator?: unknown }).discriminator;\n  return typeof discriminator === 'string' && discriminator.length > 0;\n}\n\nfunction createEntityHelper(\n  helperPath: string,\n  descriptor: AuthoringEntityTypeDescriptor,\n  options: EntityHelperFactoryOptions,\n): (...args: readonly unknown[]) => unknown {\n  return (...args: readonly unknown[]) =>\n    instantiateAuthoringEntityType(helperPath, descriptor, args, options.ctx);\n}\n","import type { ColumnTypeDescriptor } from '@prisma-next/framework-components/codec';\nimport { blindCast } from '@prisma-next/utils/casts';\n\n/**\n * A single enum member produced by `member()`. The `Name` and `Value` generics\n * are preserved as literal types so `enumType()` can carry the ordered value\n * tuple in its return type. `Value` is whatever the codec dictates — its type\n * is constrained at `enumType` against the codec's input type, not here.\n */\nexport interface EnumMember<Name extends string, Value> {\n  readonly name: Name;\n  readonly value: Value;\n}\n\n/**\n * Declare an enum member. The `value` defaults to `name` when omitted. The\n * value is an unconstrained literal here; `enumType` constrains it against the\n * codec's input type. Both generics are preserved as literals so downstream\n * `enumType` carries the value union in its type; the value is serialized to its\n * codec string form only at lowering.\n */\nexport function member<const Name extends string>(name: Name): EnumMember<Name, Name>;\nexport function member<const Name extends string, const Value>(\n  name: Name,\n  value: Value,\n): EnumMember<Name, Value>;\nexport function member<const Name extends string, const Value = Name>(\n  name: Name,\n  value?: Value,\n): EnumMember<Name, Value> {\n  return {\n    name,\n    value: blindCast<\n      Value,\n      'overload signatures enforce Value=Name when value is omitted; default generic Value=Name makes this safe'\n    >(value === undefined ? name : value),\n  };\n}\n\ntype MembersToValues<Members extends readonly EnumMember<string, unknown>[]> = {\n  readonly [K in keyof Members]: Members[K] extends EnumMember<string, infer V> ? V : never;\n};\n\ntype MembersToNames<Members extends readonly EnumMember<string, unknown>[]> = {\n  readonly [K in keyof Members]: Members[K] extends EnumMember<infer N, unknown> ? N : never;\n};\n\ntype MembersAccessorMap<Members extends readonly EnumMember<string, unknown>[]> = {\n  readonly [M in Members[number] as M['name']]: M['value'];\n};\n\n// String-key brand rather than unique symbol: tsdown inlines a fresh unique\n// symbol into each extension's .d.mts when the source package is transitive,\n// breaking nominal type identity across chunk boundaries. A string constant\n// survives .d.mts de-duplication because string equality is preserved by value.\n// Mirrors the FILTER_EXPR_BRAND pattern in mongo-query-ast/filter-expressions.ts.\nexport const ENUM_TYPE_HANDLE_BRAND = '__prismaNextEnumTypeHandle__';\n\n/** Authoring handle returned by `enumType()`. Generic over the ordered value tuple so `const Role = enumType(...)` retains literal types. */\nexport interface EnumTypeHandle<\n  Name extends string = string,\n  Values extends readonly unknown[] = readonly unknown[],\n  Names extends readonly string[] = readonly string[],\n  MembersMap extends Record<string, unknown> = Record<string, unknown>,\n> {\n  /** Internal brand for lowering-pipeline detection. */\n  readonly [ENUM_TYPE_HANDLE_BRAND]: true;\n\n  /** The enum's declared name (used as the key in domain `enum` / storage `valueSet`). */\n  readonly enumName: Name;\n\n  /** codecId from the codec passed to `enumType`. */\n  readonly codecId: string;\n\n  /** nativeType from the codec passed to `enumType`. */\n  readonly nativeType: string;\n\n  /** Ordered member list for lowering (name + value pairs). */\n  readonly enumMembers: readonly { readonly name: string; readonly value: Values[number] }[];\n\n  /** Ordered literal value tuple. Declaration order is preserved. */\n  readonly values: Values;\n\n  /** Ordered literal name tuple. Declaration order is preserved. */\n  readonly names: Names;\n\n  /**\n   * Namespaced accessor map: `Role.members.User === 'user'`.\n   * Namespaced under `.members` to avoid collisions with `.values` / `.has`.\n   */\n  readonly members: MembersMap;\n\n  /** Returns `true` if `v` is a declared member value. */\n  has(v: Values[number]): boolean;\n\n  /** Returns the member name for a value, or `undefined` if not found. */\n  nameOf(v: Values[number]): string | undefined;\n\n  /** Returns the zero-based declaration index of a value, or `-1` if not found. */\n  ordinalOf(v: Values[number]): number;\n}\n\n/**\n * A codec typemap: codecId → `{ input, output }`, the same shape the query\n * lanes consume. The bound `enumType` wrappers supply the target pack's\n * typemap; the core defaults to an empty map (no codec is known), so member\n * values stay unconstrained.\n */\nexport type CodecTypeMap = Record<string, { readonly input?: unknown }>;\n\n/**\n * The application input type the codec dictates for an enum's member values:\n * looks `Codec['codecId']` up in the supplied codec typemap. When the codecId\n * isn't in the map the input is unconstrained, so any member-value literal is\n * accepted and inferred verbatim.\n */\nexport type CodecInput<\n  CodecTypes extends CodecTypeMap,\n  Codec extends { readonly codecId: string },\n> = Codec['codecId'] extends keyof CodecTypes\n  ? CodecTypes[Codec['codecId']] extends { readonly input: infer In }\n    ? In\n    : unknown\n  : unknown;\n\n/**\n * Declare a domain enum for use in TS-authoring contracts.\n *\n * - The codec is an explicit required argument — the `codecId` and\n *   `nativeType` are taken from the passed `ColumnTypeDescriptor` (e.g.\n *   `{ codecId: 'pg/text@1', nativeType: 'text' }` from a field preset\n *   output or a direct inline object).\n * - `const` generics on the members spread preserve the ordered literal\n *   value tuple so `Role.values` is `readonly ['user','admin']`, not\n *   `string[]`.\n * - Well-formedness assertions at construction: non-empty member list;\n *   unique names; unique values.\n *\n * The returned handle wires into `field.namedType(handle)` to set\n * `valueSet` refs on both the domain field and the storage column.\n *\n * @example\n * ```ts\n * const Role = enumType('Role', { codecId: 'pg/text@1', nativeType: 'text' },\n *   member('User', 'user'),\n *   member('Admin', 'admin'),\n * );\n * // Role.values → readonly ['user', 'admin']\n * // Role.members.User → 'user'\n * ```\n */\nexport function enumType<\n  CodecTypes extends CodecTypeMap = Record<string, never>,\n  const Name extends string = string,\n  const Codec extends Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'> = Pick<\n    ColumnTypeDescriptor,\n    'codecId' | 'nativeType'\n  >,\n  const Members extends readonly [\n    EnumMember<string, CodecInput<CodecTypes, Codec>>,\n    ...EnumMember<string, CodecInput<CodecTypes, Codec>>[],\n  ] = readonly [EnumMember<string, CodecInput<CodecTypes, Codec>>],\n>(\n  name: Name,\n  codec: Codec,\n  ...members: Members\n): EnumTypeHandle<\n  Name,\n  MembersToValues<[...Members]>,\n  MembersToNames<[...Members]>,\n  MembersAccessorMap<[...Members]>\n>;\nexport function enumType(\n  name: string,\n  codec: Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>,\n  ...members: EnumMember<string, unknown>[]\n): EnumTypeHandle;\nexport function enumType(\n  name: string,\n  codec: Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>,\n  ...members: EnumMember<string, unknown>[]\n): EnumTypeHandle {\n  if (members.length === 0) {\n    throw new Error(`enumType(\"${name}\"): must have at least one member.`);\n  }\n\n  const seenNames = new Set<string>();\n  const seenValues = new Set<string>();\n  for (const m of members) {\n    if (seenNames.has(m.name)) {\n      throw new Error(\n        `enumType(\"${name}\"): duplicate member name \"${m.name}\". Member names must be unique.`,\n      );\n    }\n    seenNames.add(m.name);\n\n    const loweredValue = String(m.value);\n    if (seenValues.has(loweredValue)) {\n      throw new Error(\n        `enumType(\"${name}\"): duplicate member value \"${loweredValue}\". Member values must be unique.`,\n      );\n    }\n    seenValues.add(loweredValue);\n  }\n\n  const values = Object.freeze(members.map((m) => m.value));\n  const names = Object.freeze(members.map((m) => m.name));\n  const enumMembers = Object.freeze(members.map((m) => ({ name: m.name, value: m.value })));\n\n  const membersAccessor = Object.freeze(Object.fromEntries(members.map((m) => [m.name, m.value])));\n\n  const valueSet = new Set(values);\n  const valueToName = new Map(members.map((m) => [m.value, m.name]));\n  const valueToOrdinal = new Map(values.map((v, i) => [v, i]));\n\n  return {\n    [ENUM_TYPE_HANDLE_BRAND]: true,\n    enumName: name,\n    codecId: codec.codecId,\n    nativeType: codec.nativeType,\n    enumMembers,\n    values,\n    names,\n    members: membersAccessor,\n    has: (v: unknown) => valueSet.has(v),\n    nameOf: (v: unknown) => valueToName.get(v),\n    ordinalOf: (v: unknown) => valueToOrdinal.get(v) ?? -1,\n  };\n}\n\n/**\n * The signature of an `enumType` whose codec typemap is already bound — the\n * shape a target-bound wrapper (e.g. `@prisma-next/postgres/contract-builder`)\n * exposes. The member values are constrained to the codec's input type drawn\n * from `CodecTypes`, while `Name`, `Codec`, and the member tuple still infer\n * from the call.\n */\nexport type BoundEnumType<CodecTypes extends CodecTypeMap> = <\n  const Name extends string,\n  const Codec extends Pick<ColumnTypeDescriptor, 'codecId' | 'nativeType'>,\n  const Members extends readonly [\n    EnumMember<string, CodecInput<CodecTypes, Codec>>,\n    ...EnumMember<string, CodecInput<CodecTypes, Codec>>[],\n  ],\n>(\n  name: Name,\n  codec: Codec,\n  ...members: Members\n) => EnumTypeHandle<\n  Name,\n  MembersToValues<[...Members]>,\n  MembersToNames<[...Members]>,\n  MembersAccessorMap<[...Members]>\n>;\n\n/**\n * Bind `enumType` to a target's codec typemap. The returned function is the\n * same runtime `enumType`, retyped so member values are constrained to the\n * codec's input type. 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package.json

 {
   "name": "@prisma-next/contract-authoring",
-  "version": "0.14.0",
+  "version": "0.15.0-dev.1",
   "license": "Apache-2.0",
@@ -9,10 +9,11 @@ "type": "module",
   "dependencies": {
-    "@prisma-next/framework-components": "0.14.0"
+    "@prisma-next/framework-components": "0.15.0-dev.1",
+    "@prisma-next/utils": "0.15.0-dev.1"
   },
   "devDependencies": {
-    "@prisma-next/tsconfig": "0.14.0",
-    "@prisma-next/tsdown": "0.14.0",
-    "tsdown": "0.22.1",
+    "@prisma-next/tsconfig": "0.15.0-dev.1",
+    "@prisma-next/tsdown": "0.15.0-dev.1",
+    "tsdown": "0.22.3",
     "typescript": "5.9.3",
-    "vitest": "4.1.8"
+    "vitest": "4.1.10"
   },
@@ -19,0 +20,0 @@ "peerDependencies": {

src/index.ts

@@ -14,1 +14,15 @@ export type { CapabilityMatrix } from './capability-registry';
 export type { ForeignKeyDefaultsState, IndexDef } from './descriptors';
+export type {
+  BoundEnumType,
+  CodecInput,
+  CodecTypeMap,
+  EnumMember,
+  EnumTypeHandle,
+} from './enum-type';
+export {
+  bindEnumType,
+  ENUM_TYPE_HANDLE_BRAND,
+  enumType,
+  isEnumTypeHandle,
+  member,
+} from './enum-type';

No alert changes

Improved metrics

Total package byte prevSize

72337

90.82%

Number of package files

12

9.09%

Lines of code

561

136.71%

Worsened metrics

Dependency count

3

50%

Dependency changes

• + Added

  @prisma-next/utils@0.15.0-dev.1

• + Added

  @prisma-next/contract@0.15.0-dev.1
  (transitive)

• + Added

  @prisma-next/framework-components@0.15.0-dev.1
  (transitive)

• + Added

  @prisma-next/operations@0.15.0-dev.1
  (transitive)

• + Added

  @prisma-next/ts-render@0.15.0-dev.1
  (transitive)

• + Added

  @prisma-next/utils@0.15.0-dev.1
  (transitive)

• - Removed

  @prisma-next/contract@0.14.0
  (transitive)

• - Removed

  @prisma-next/framework-components@0.14.0
  (transitive)

• - Removed

  @prisma-next/operations@0.14.0
  (transitive)

• - Removed

  @prisma-next/ts-render@0.14.0
  (transitive)

• - Removed

  @prisma-next/utils@0.14.0
  (transitive)

• Updated

  @prisma-next/framework-components@0.15.0-dev.1