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This commit is contained in:
Vladimir Matveev 2015-03-14 18:50:05 -07:00
parent d163205da6
commit fac3cf8b55
1 changed files with 5 additions and 4 deletions
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9
src/compiler/checker.ts
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@ -8625,18 +8625,19 @@ module ts {
localDeclarationSymbol !== symbol &&
localDeclarationSymbol.flags & SymbolFlags.BlockScopedVariable) {
if (getDeclarationFlagsFromSymbol(localDeclarationSymbol) & NodeFlags.BlockScoped) {
let varDeclList = getAncestor(localDeclarationSymbol.valueDeclaration, SyntaxKind.VariableDeclarationList);
let container =
varDeclList.parent.kind === SyntaxKind.VariableStatement &&
varDeclList.parent.parent;
varDeclList.parent.kind === SyntaxKind.VariableStatement && varDeclList.parent.parent
? varDeclList.parent.parent
: undefined;
// names of block-scoped and function scoped variables can collide only
// if block scoped variable is defined in the function\module\source file scope (because of variable hoisting)
let namesShareScope =
container &&
(container.kind === SyntaxKind.Block && isFunctionLike(container.parent) ||
(container.kind === SyntaxKind.ModuleBlock && container.kind === SyntaxKind.ModuleDeclaration) ||
container.kind === SyntaxKind.ModuleBlock ||
container.kind === SyntaxKind.ModuleDeclaration ||
container.kind === SyntaxKind.SourceFile);
// here we know that function scoped variable is shadowed by block scoped one