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feat(parser): support === and !== operators

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Closes #1496

Closes #1500
This commit is contained in:
Pawel Kozlowski
2015-04-22 11:45:33 +02:00
parent 2e3e41ba64
commit afe0e45453
5 changed files with 32 additions and 5 deletions
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2
modules/angular2/src/change_detection/parser/ast.js vendored
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@ -281,6 +281,8 @@ export class Binary extends AST {
case '%' : return left % right;
case '==' : return left == right;
case '!=' : return left != right;
case '===' : return left === right;
case '!==' : return left !== right;
case '<' : return left < right;
case '>' : return left > right;
case '<=' : return left <= right;

4
modules/angular2/src/change_detection/parser/lexer.js vendored
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@ -304,7 +304,7 @@ class _Scanner {
assert(this.peek == StringWrapper.charCodeAt(one, 0));
this.advance();
var str:string = one;
if (this.peek == code) {
while (this.peek == code) {
this.advance();
str += two;
}
@ -461,6 +461,8 @@ var OPERATORS = SetWrapper.createFromList([
'=',
'==',
'!=',
'===',
'!==',
'<',
'>',
'<=',

6
modules/angular2/src/change_detection/parser/parser.js vendored
View File

@ -277,13 +277,17 @@ class _ParseAST {
}
parseEquality() {
// '==','!='
// '==','!=','===','!=='
var result = this.parseRelational();
while (true) {
if (this.optionalOperator('==')) {
result = new Binary('==', result, this.parseRelational());
} else if (this.optionalOperator('===')) {
result = new Binary('===', result, this.parseRelational());
} else if (this.optionalOperator('!=')) {
result = new Binary('!=', result, this.parseRelational());
} else if (this.optionalOperator('!==')) {
result = new Binary('!==', result, this.parseRelational());
} else {
return result;
}