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Merge pull request #29242 from Kingwl/attach_property_to_default_export

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add transformer for emit add property to default export
This commit is contained in:
Daniel Rosenwasser
2019-04-18 23:30:48 -04:00
committed by GitHub
parent b6a0988052 e8b6615c2c
commit 2eea21636b
5 changed files with 98 additions and 4 deletions
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44
src/compiler/transformers/declarations.ts
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@@ -63,7 +63,7 @@ namespace ts {
let enclosingDeclaration: Node;
let necessaryTypeReferences: Map<true> | undefined;
let lateMarkedStatements: LateVisibilityPaintedStatement[] | undefined;
let lateStatementReplacementMap: Map<VisitResult<LateVisibilityPaintedStatement>>;
let lateStatementReplacementMap: Map<VisitResult<LateVisibilityPaintedStatement | ExportAssignment>>;
let suppressNewDiagnosticContexts: boolean;
let exportedModulesFromDeclarationEmit: Symbol[] | undefined;
@@ -701,12 +701,12 @@ namespace ts {
}
}
function isExternalModuleIndicator(result: LateVisibilityPaintedStatement) {
function isExternalModuleIndicator(result: LateVisibilityPaintedStatement | ExportAssignment) {
// Exported top-level member indicates moduleness
return isAnyImportOrReExport(result) || isExportAssignment(result) || hasModifier(result, ModifierFlags.Export);
}
function needsScopeMarker(result: LateVisibilityPaintedStatement) {
function needsScopeMarker(result: LateVisibilityPaintedStatement | ExportAssignment) {
return !isAnyImportOrReExport(result) && !isExportAssignment(result) && !hasModifier(result, ModifierFlags.Export) && !isAmbientModule(result);
}
@@ -1047,7 +1047,43 @@ namespace ts {
return createVariableStatement(/*modifiers*/ undefined, createVariableDeclarationList([varDecl]));
});
const namespaceDecl = createModuleDeclaration(/*decorators*/ undefined, ensureModifiers(input, isPrivate), input.name!, createModuleBlock(declarations), NodeFlags.Namespace);
return [clean, namespaceDecl];
if (!hasModifier(clean, ModifierFlags.ExportDefault)) {
return [clean, namespaceDecl];
}
const modifiers = createModifiersFromModifierFlags((getModifierFlags(clean) & ~ModifierFlags.ExportDefault) | ModifierFlags.Ambient);
const cleanDeclaration = updateFunctionDeclaration(
clean,
/*decorators*/ undefined,
modifiers,
/*asteriskToken*/ undefined,
clean.name,
clean.typeParameters,
clean.parameters,
clean.type,
/*body*/ undefined
);
const namespaceDeclaration = updateModuleDeclaration(
namespaceDecl,
/*decorators*/ undefined,
modifiers,
namespaceDecl.name,
namespaceDecl.body
);
const exportDefaultDeclaration = createExportAssignment(
/*decorators*/ undefined,
/*modifiers*/ undefined,
/*isExportEquals*/ false,
namespaceDecl.name
);
resultHasExternalModuleIndicator = true;
resultHasScopeMarker = true;
return [cleanDeclaration, namespaceDeclaration, exportDefaultDeclaration];
}
else {
return clean;