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Move with checks to the grammar checker.

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This commit is contained in:
Cyrus Najmabadi
2014-11-19 14:07:25 -08:00
parent 67afd6d570
commit 9ca17f9b29
3 changed files with 31 additions and 13 deletions
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27
src/compiler/parser.ts
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@@ -2896,20 +2896,12 @@ module ts {
function parseWithStatement(): WithStatement {
var node = <WithStatement>createNode(SyntaxKind.WithStatement);
var startPos = scanner.getTokenPos();
parseExpected(SyntaxKind.WithKeyword);
var endPos = scanner.getStartPos();
parseExpected(SyntaxKind.OpenParenToken);
node.expression = parseExpression();
parseExpected(SyntaxKind.CloseParenToken);
node.statement = parseStatement();
node = finishNode(node);
if (isInStrictMode) {
// Strict mode code may not include a WithStatement. The occurrence of a WithStatement in such
// a context is an
grammarErrorAtPos(startPos, endPos - startPos, Diagnostics.with_statements_are_not_allowed_in_strict_mode);
}
return node;
return finishNode(node);
}
function parseCaseClause(): CaseOrDefaultClause {
@@ -4019,6 +4011,7 @@ module ts {
case SyntaxKind.TypeReference: return visitTypeReference(<TypeReferenceNode>node);
case SyntaxKind.VariableDeclaration: return visitVariableDeclaration(<VariableDeclaration>node);
case SyntaxKind.VariableStatement: return visitVariableStatement(<VariableStatement>node);
case SyntaxKind.WithStatement: return visitWithStatement(<WithStatement>node);
}
}
@@ -4630,8 +4623,8 @@ module ts {
}
}
function allowLetAndConstDeclarations(node: Node): boolean {
switch (node.kind) {
function allowLetAndConstDeclarations(parent: Node): boolean {
switch (parent.kind) {
case SyntaxKind.IfStatement:
case SyntaxKind.DoStatement:
case SyntaxKind.WhileStatement:
@@ -4640,11 +4633,19 @@ module ts {
case SyntaxKind.ForInStatement:
return false;
case SyntaxKind.LabeledStatement:
return allowLetAndConstDeclarations(node.parent);
return allowLetAndConstDeclarations(parent.parent);
}
return true;
}
}
function visitWithStatement(node: WithStatement): void {
if (node.flags & NodeFlags.ParsedInStrictMode) {
// Strict mode code may not include a WithStatement. The occurrence of a WithStatement in such
// a context is an
grammarErrorOnFirstToken(node, Diagnostics.with_statements_are_not_allowed_in_strict_mode);
}
}
}
export function createProgram(rootNames: string[], options: CompilerOptions, host: CompilerHost): Program {

13
tests/baselines/reference/methodInAmbientClass1.errors.txt Normal file
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@@ -0,0 +1,13 @@
tests/cases/compiler/methodInAmbientClass1.ts(2,20): error TS1037: A function implementation cannot be declared in an ambient context.
tests/cases/compiler/methodInAmbientClass1.ts(2,12): error TS2355: A function whose declared type is neither 'void' nor 'any' must return a value or consist of a single 'throw' statement.
==== tests/cases/compiler/methodInAmbientClass1.ts (2 errors) ====
declare class Foo {
fn(): boolean {
~
!!! error TS1037: A function implementation cannot be declared in an ambient context.
~~~~~~~
!!! error TS2355: A function whose declared type is neither 'void' nor 'any' must return a value or consist of a single 'throw' statement.
}
}

4
tests/cases/compiler/methodInAmbientClass1.ts Normal file
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@@ -0,0 +1,4 @@
declare class Foo {
fn(): boolean {
}
}