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Merge pull request #30734 from andrewbranch/bug/30664

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Fall back from `globalReadonlyArrayType` to `globalArrayType` when transpiling
This commit is contained in:
Andrew Branch
2019-04-04 11:57:08 -07:00
committed by GitHub
parent 586ecbf1d7 6c4b5ef8f2
commit 8c51115be1
6 changed files with 17 additions and 1 deletions
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2
src/compiler/checker.ts
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@@ -30307,7 +30307,7 @@ namespace ts {
autoArrayType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
}
globalReadonlyArrayType = <GenericType>getGlobalTypeOrUndefined("ReadonlyArray" as __String, /*arity*/ 1);
globalReadonlyArrayType = <GenericType>getGlobalTypeOrUndefined("ReadonlyArray" as __String, /*arity*/ 1) || globalArrayType;
anyReadonlyArrayType = globalReadonlyArrayType ? createTypeFromGenericGlobalType(globalReadonlyArrayType, [anyType]) : anyArrayType;
globalThisType = <GenericType>getGlobalTypeOrUndefined("ThisType" as __String, /*arity*/ 1);

8
src/testRunner/unittests/services/transpile.ts
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@@ -445,5 +445,13 @@ var x = 0;`, {
}
}
});
transpilesCorrectly("Supports readonly keyword for arrays", "let x: readonly string[];", {
options: { compilerOptions: { module: ModuleKind.CommonJS } }
});
transpilesCorrectly("Supports 'as const' arrays", `([] as const).forEach(k => console.log(k));`, {
options: { compilerOptions: { module: ModuleKind.CommonJS } }
});
});
}

2
tests/baselines/reference/transpile/Supports as const arrays.js Normal file
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@@ -0,0 +1,2 @@
[].forEach(function (k) { return console.log(k); });
//# sourceMappingURL=file.js.map

2
tests/baselines/reference/transpile/Supports as const arrays.oldTranspile.js Normal file
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@@ -0,0 +1,2 @@
[].forEach(function (k) { return console.log(k); });
//# sourceMappingURL=file.js.map

2
tests/baselines/reference/transpile/Supports readonly keyword for arrays.js Normal file
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@@ -0,0 +1,2 @@
var x;
//# sourceMappingURL=file.js.map

2
tests/baselines/reference/transpile/Supports readonly keyword for arrays.oldTranspile.js Normal file
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@@ -0,0 +1,2 @@
var x;
//# sourceMappingURL=file.js.map