fix(compiler): make unary plus operator consistent to JavaScript (#22154)

fixes #22089 PR Close #22154
2018-02-12 00:02:24 +08:00
parent 20a900b648
commit 72f8abd7b3
2 changed files with 6 additions and 2 deletions
--- a/packages/compiler/src/expression_parser/parser.ts
+++ b/packages/compiler/src/expression_parser/parser.ts
@ -477,7 +477,9 @@ export class _ParseAST {
      switch (operator) {
        case '+':
          this.advance();
-          return this.parsePrefix();
+          result = this.parsePrefix();
+          return new Binary(
+              this.span(start), '-', result, new LiteralPrimitive(new ParseSpan(start, start), 0));
        case '-':
          this.advance();
          result = this.parsePrefix();