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TypeScript Botandrewbranch
TypeScript Bot
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🤖 Pick PR #54450 (Resolve tslib re-exports before che...) into release-5.1 (#54457)
Co-authored-by: Andrew Branch <andrew@wheream.io>
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lines changed

5 files changed

+241
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lines changed

‎src/compiler/checker.ts

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@@ -46984,7 +46984,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
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if (requestedExternalEmitHelperNames.has(name)) continue;
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requestedExternalEmitHelperNames.add(name);
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const symbol = getSymbol(getExportsOfModule(helpersModule), escapeLeadingUnderscores(name), SymbolFlags.Value);
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const symbol = resolveSymbol(getSymbol(getExportsOfModule(helpersModule), escapeLeadingUnderscores(name), SymbolFlags.Value));
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if (!symbol) {
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error(location, Diagnostics.This_syntax_requires_an_imported_helper_named_1_which_does_not_exist_in_0_Consider_upgrading_your_version_of_0, externalHelpersModuleNameText, name);
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}

‎tests/baselines/reference/tslibReExportHelpers2.js

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//// [tests/cases/compiler/tslibReExportHelpers2.ts] ////
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//// [index.d.ts]
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export declare function __classPrivateFieldGet<T extends object, V>(
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receiver: T,
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state: { has(o: T): boolean, get(o: T): V | undefined },
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kind?: "f"
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): V;
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export declare function __classPrivateFieldGet<T extends new (...args: any[]) => unknown, V>(
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receiver: T,
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state: T,
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kind: "f",
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f: { value: V }
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): V;
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//// [index.d.mts]
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export { __classPrivateFieldGet } from "./index.js";
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//// [package.json]
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{
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"name": "tslib",
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"version": "1.0.0",
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"types": "index.d.ts",
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"exports": {
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".": {
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"types": {
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"import": "./index.d.mts",
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"default": "./index.d.ts"
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}
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}
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}
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}
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//// [index.mts]
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export class Foo {
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constructor() {
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console.log(Foo.#test());
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}
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static #test() {
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return 'success';
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}
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}
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//// [index.mjs]
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var _a, _Foo_test;
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import { __classPrivateFieldGet } from "tslib";
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export class Foo {
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constructor() {
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console.log(__classPrivateFieldGet(Foo, _a, "m", _Foo_test).call(Foo));
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}
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}
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_a = Foo, _Foo_test = function _Foo_test() {
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return 'success';
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};

‎tests/baselines/reference/tslibReExportHelpers2.symbols

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=== /node_modules/tslib/index.d.ts ===
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export declare function __classPrivateFieldGet<T extends object, V>(
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>__classPrivateFieldGet : Symbol(__classPrivateFieldGet, Decl(index.d.ts, 0, 0), Decl(index.d.ts, 4, 5))
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>T : Symbol(T, Decl(index.d.ts, 0, 47))
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>V : Symbol(V, Decl(index.d.ts, 0, 64))
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receiver: T,
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>receiver : Symbol(receiver, Decl(index.d.ts, 0, 68))
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>T : Symbol(T, Decl(index.d.ts, 0, 47))
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state: { has(o: T): boolean, get(o: T): V | undefined },
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>state : Symbol(state, Decl(index.d.ts, 1, 14))
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>has : Symbol(has, Decl(index.d.ts, 2, 10))
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>o : Symbol(o, Decl(index.d.ts, 2, 15))
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>T : Symbol(T, Decl(index.d.ts, 0, 47))
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>get : Symbol(get, Decl(index.d.ts, 2, 30))
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>o : Symbol(o, Decl(index.d.ts, 2, 35))
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>T : Symbol(T, Decl(index.d.ts, 0, 47))
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>V : Symbol(V, Decl(index.d.ts, 0, 64))
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kind?: "f"
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>kind : Symbol(kind, Decl(index.d.ts, 2, 58))
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): V;
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>V : Symbol(V, Decl(index.d.ts, 0, 64))
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export declare function __classPrivateFieldGet<T extends new (...args: any[]) => unknown, V>(
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>__classPrivateFieldGet : Symbol(__classPrivateFieldGet, Decl(index.d.ts, 0, 0), Decl(index.d.ts, 4, 5))
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>T : Symbol(T, Decl(index.d.ts, 5, 47))
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>args : Symbol(args, Decl(index.d.ts, 5, 62))
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>V : Symbol(V, Decl(index.d.ts, 5, 89))
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receiver: T,
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>receiver : Symbol(receiver, Decl(index.d.ts, 5, 93))
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>T : Symbol(T, Decl(index.d.ts, 5, 47))
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state: T,
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>state : Symbol(state, Decl(index.d.ts, 6, 14))
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>T : Symbol(T, Decl(index.d.ts, 5, 47))
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kind: "f",
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>kind : Symbol(kind, Decl(index.d.ts, 7, 11))
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f: { value: V }
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>f : Symbol(f, Decl(index.d.ts, 8, 12))
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>value : Symbol(value, Decl(index.d.ts, 9, 6))
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>V : Symbol(V, Decl(index.d.ts, 5, 89))
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): V;
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>V : Symbol(V, Decl(index.d.ts, 5, 89))
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=== /node_modules/tslib/index.d.mts ===
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export { __classPrivateFieldGet } from "./index.js";
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>__classPrivateFieldGet : Symbol(__classPrivateFieldGet, Decl(index.d.mts, 0, 8))
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=== /index.mts ===
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export class Foo {
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>Foo : Symbol(Foo, Decl(index.mts, 0, 0))
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constructor() {
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console.log(Foo.#test());
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>Foo.#test : Symbol(Foo.#test, Decl(index.mts, 3, 3))
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>Foo : Symbol(Foo, Decl(index.mts, 0, 0))
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}
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static #test() {
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>#test : Symbol(Foo.#test, Decl(index.mts, 3, 3))
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return 'success';
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}
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}
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‎tests/baselines/reference/tslibReExportHelpers2.types

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=== /node_modules/tslib/index.d.ts ===
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export declare function __classPrivateFieldGet<T extends object, V>(
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>__classPrivateFieldGet : { <T extends object, V>(receiver: T, state: { has(o: T): boolean; get(o: T): V | undefined; }, kind?: "f"): V; <T extends new (...args: any[]) => unknown, V>(receiver: T, state: T, kind: "f", f: { value: V; }): V; }
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receiver: T,
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>receiver : T
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state: { has(o: T): boolean, get(o: T): V | undefined },
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>state : { has(o: T): boolean; get(o: T): V | undefined; }
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>has : (o: T) => boolean
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>o : T
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>get : (o: T) => V | undefined
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>o : T
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kind?: "f"
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>kind : "f"
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): V;
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export declare function __classPrivateFieldGet<T extends new (...args: any[]) => unknown, V>(
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>__classPrivateFieldGet : { <T extends object, V>(receiver: T, state: { has(o: T): boolean; get(o: T): V; }, kind?: "f"): V; <T extends new (...args: any[]) => unknown, V>(receiver: T, state: T, kind: "f", f: { value: V;}): V; }
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>args : any[]
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receiver: T,
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>receiver : T
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state: T,
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>state : T
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kind: "f",
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>kind : "f"
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f: { value: V }
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>f : { value: V; }
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>value : V
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): V;
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=== /node_modules/tslib/index.d.mts ===
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export { __classPrivateFieldGet } from "./index.js";
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>__classPrivateFieldGet : { <T extends object, V>(receiver: T, state: { has(o: T): boolean; get(o: T): V; }, kind?: "f"): V; <T extends new (...args: any[]) => unknown, V>(receiver: T, state: T, kind: "f", f: { value: V; }): V; }
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=== /index.mts ===
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export class Foo {
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>Foo : Foo
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constructor() {
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console.log(Foo.#test());
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>console.log(Foo.#test()) : void
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>console.log : (...data: any[]) => void
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>console : Console
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>log : (...data: any[]) => void
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>Foo.#test() : string
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>Foo.#test : () => string
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>Foo : typeof Foo
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}
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static #test() {
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>#test : () => string
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return 'success';
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>'success' : "success"
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}
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}
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‎tests/cases/compiler/tslibReExportHelpers2.ts

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// @module: nodenext
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// @importHelpers: true
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// @target: es2021
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// @Filename: /node_modules/tslib/index.d.ts
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export declare function __classPrivateFieldGet<T extends object, V>(
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receiver: T,
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state: { has(o: T): boolean, get(o: T): V | undefined },
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kind?: "f"
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): V;
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export declare function __classPrivateFieldGet<T extends new (...args: any[]) => unknown, V>(
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receiver: T,
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state: T,
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kind: "f",
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f: { value: V }
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): V;
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// @Filename: /node_modules/tslib/index.d.mts
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export { __classPrivateFieldGet } from "./index.js";
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// @Filename: /node_modules/tslib/package.json
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{
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"name": "tslib",
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"version": "1.0.0",
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"types": "index.d.ts",
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"exports": {
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".": {
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"types": {
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"import": "./index.d.mts",
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"default": "./index.d.ts"
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}
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}
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}
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}
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// @Filename: /index.mts
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export class Foo {
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constructor() {
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console.log(Foo.#test());
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}
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static #test() {
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return 'success';
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}
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}

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