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Handle synthetic nodes correctly as namespace identifiers in system transform (#19623)

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* Handle synthetic nodes correctly as namespace identifiers in system transform

* Add ref to issue in comment

* Lock newline for ci
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Wesley Wigham 2017-11-08 18:15:23 -08:00 committed by GitHub
parent e9841f3899
commit 235356e6ff
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3 changed files with 46 additions and 1 deletions
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2
src/compiler/factory.ts
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@ -4319,7 +4319,7 @@ namespace ts {
const namespaceDeclaration = getNamespaceDeclarationNode(node);
if (namespaceDeclaration && !isDefaultImport(node)) {
const name = namespaceDeclaration.name;
return isGeneratedIdentifier(name) ? name : createIdentifier(getSourceTextOfNodeFromSourceFile(sourceFile, namespaceDeclaration.name));
return isGeneratedIdentifier(name) ? name : createIdentifier(getSourceTextOfNodeFromSourceFile(sourceFile, name) || idText(name));
}
if (node.kind === SyntaxKind.ImportDeclaration && (<ImportDeclaration>node).importClause) {
return getGeneratedNameForNode(node);

32
src/harness/unittests/transform.ts
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@ -192,6 +192,38 @@ namespace ts {
};
}
});
// https://github.com/Microsoft/TypeScript/issues/19618
testBaseline("transformAddImportStar", () => {
return ts.transpileModule("", {
transformers: {
before: [transformAddImportStar],
},
compilerOptions: {
target: ts.ScriptTarget.ES5,
module: ts.ModuleKind.System,
newLine: NewLineKind.CarriageReturnLineFeed,
}
}).outputText;
function transformAddImportStar(_context: ts.TransformationContext) {
return (sourceFile: ts.SourceFile): ts.SourceFile => {
return visitNode(sourceFile);
};
function visitNode(sf: ts.SourceFile) {
// produce `import * as i0 from './comp';
const importStar = ts.createImportDeclaration(
/*decorators*/ undefined,
/*modifiers*/ undefined,
/*importClause*/ ts.createImportClause(
/*name*/ undefined,
ts.createNamespaceImport(ts.createIdentifier("i0"))
),
/*moduleSpecifier*/ ts.createLiteral("./comp1"));
return ts.updateSourceFileNode(sf, [importStar]);
}
}
});
});
}

13
tests/baselines/reference/transformApi/transformsCorrectly.transformAddImportStar.js Normal file
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@ -0,0 +1,13 @@
System.register(["./comp1"], function (exports_1, context_1) {
var __moduleName = context_1 && context_1.id;
var i0;
return {
setters: [
function (i0_1) {
i0 = i0_1;
}
],
execute: function () {
}
};
});