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Move 'use strict' directive out of generator for async function.

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This commit is contained in:
Ron Buckton
2016-06-27 13:48:47 -07:00
parent 4a16f65c00
commit 393ee28fb0
6 changed files with 76 additions and 8 deletions
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11
src/compiler/transformers/generators.ts
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@@ -572,10 +572,12 @@ namespace ts {
operationLocations = undefined;
state = createTempVariable(/*recordTempVariable*/ undefined);
const statementOffset = addPrologueDirectives(statements, body.statements);
// Build the generator
startLexicalEnvironment();
transformAndEmitStatements(body.statements);
transformAndEmitStatements(body.statements, statementOffset);
const buildResult = build();
addNodes(statements, endLexicalEnvironment());
@@ -1117,9 +1119,10 @@ namespace ts {
return visitEachChild(node, visitor, context);
}
function transformAndEmitStatements(statements: Statement[]) {
for (const statement of statements) {
transformAndEmitStatement(statement);
function transformAndEmitStatements(statements: Statement[], start = 0) {
const numStatements = statements.length;
for (let i = start; i < numStatements; i++) {
transformAndEmitStatement(statements[i]);
}
}

10
src/compiler/transformers/ts.ts
View File

@@ -2181,11 +2181,13 @@ namespace ts {
return transformFunctionBodyWorker(node.body);
}
function transformFunctionBodyWorker(body: Block) {
function transformFunctionBodyWorker(body: Block, start = 0) {
const savedCurrentScope = currentScope;
currentScope = body;
startLexicalEnvironment();
const visited = visitEachChild(body, visitor, context);
const statements = visitNodes(body.statements, visitor, isStatement, start);
const visited = updateBlock(body, statements);
const declarations = endLexicalEnvironment();
currentScope = savedCurrentScope;
return mergeFunctionBodyLexicalEnvironment(visited, declarations);
@@ -2233,14 +2235,14 @@ namespace ts {
if (!isArrowFunction) {
const statements: Statement[] = [];
const statementOffset = addPrologueDirectives(statements, (<Block>node.body).statements);
statements.push(
createReturn(
createAwaiterHelper(
currentSourceFileExternalHelpersModuleName,
hasLexicalArguments,
promiseConstructor,
transformFunctionBodyWorker(<Block>node.body)
transformFunctionBodyWorker(<Block>node.body, statementOffset)
)
)
);