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fix(TemplateParser): report empty expression (#10391)

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fixes #3754
This commit is contained in:
Victor Berchet
2016-08-01 11:24:49 -07:00
committed by GitHub
parent e18626b7a2
commit e73d0511cf
3 changed files with 33 additions and 17 deletions
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12
modules/@angular/compiler/src/expression_parser/parser.ts
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@ -43,8 +43,8 @@ export class Parser {
input: string, location: any,
interpolationConfig: InterpolationConfig = DEFAULT_INTERPOLATION_CONFIG): ASTWithSource {
this._checkNoInterpolation(input, location, interpolationConfig);
var tokens = this._lexer.tokenize(this._stripComments(input));
var ast = new _ParseAST(input, location, tokens, true, this.errors).parseChain();
const tokens = this._lexer.tokenize(this._stripComments(input));
const ast = new _ParseAST(input, location, tokens, true, this.errors).parseChain();
return new ASTWithSource(ast, input, location, this.errors);
}
@ -155,15 +155,15 @@ export class Parser {
}
private _stripComments(input: string): string {
let i = this._commentStart(input);
const i = this._commentStart(input);
return isPresent(i) ? input.substring(0, i).trim() : input;
}
private _commentStart(input: string): number {
var outerQuote: number = null;
for (var i = 0; i < input.length - 1; i++) {
let char = StringWrapper.charCodeAt(input, i);
let nextChar = StringWrapper.charCodeAt(input, i + 1);
for (let i = 0; i < input.length - 1; i++) {
const char = StringWrapper.charCodeAt(input, i);
const nextChar = StringWrapper.charCodeAt(input, i + 1);
if (char === chars.$SLASH && nextChar == chars.$SLASH && isBlank(outerQuote)) return i;