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Merge pull request #6597 from plantain-00/use_const_rather_than_var_when_target_es6

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Use const rather than var when target es6
This commit is contained in:
Daniel Rosenwasser
2016-01-25 14:14:05 -08:00
parent f947f6abb4 d06d66cf5d
commit 6ff1bbee4c
11 changed files with 34 additions and 31 deletions
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9
src/compiler/emitter.ts
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@@ -6100,6 +6100,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
if (contains(externalImports, node)) {
const isExportedImport = node.kind === SyntaxKind.ImportEqualsDeclaration && (node.flags & NodeFlags.Export) !== 0;
const namespaceDeclaration = getNamespaceDeclarationNode(node);
const varOrConst = (languageVersion <= ScriptTarget.ES5) ? "var " : "const ";
if (modulekind !== ModuleKind.AMD) {
emitLeadingComments(node);
@@ -6107,7 +6108,9 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
if (namespaceDeclaration && !isDefaultImport(node)) {
// import x = require("foo")
// import * as x from "foo"
if (!isExportedImport) write("var ");
if (!isExportedImport) {
write(varOrConst);
};
emitModuleMemberName(namespaceDeclaration);
write(" = ");
}
@@ -6119,7 +6122,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
// import d, { x, y } from "foo"
const isNakedImport = SyntaxKind.ImportDeclaration && !(<ImportDeclaration>node).importClause;
if (!isNakedImport) {
write("var ");
write(varOrConst);
write(getGeneratedNameForNode(<ImportDeclaration>node));
write(" = ");
}
@@ -6146,7 +6149,7 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
}
else if (namespaceDeclaration && isDefaultImport(node)) {
// import d, * as x from "foo"
write("var ");
write(varOrConst);
emitModuleMemberName(namespaceDeclaration);
write(" = ");
write(getGeneratedNameForNode(<ImportDeclaration>node));