[parser] Exception to 8 and 9 in tagged template (#10567)

2019-10-17 00:01:22 +02:00
parent 2254542010
commit 5800fc97b3
5 changed files with 16 additions and 0 deletions
--- a/packages/babel-parser/src/tokenizer/index.js
+++ b/packages/babel-parser/src/tokenizer/index.js
@@ -1239,6 +1239,14 @@ export default class Tokenizer extends LocationParser {
      case charCodes.lineSeparator:
      case charCodes.paragraphSeparator:
        return "";
+      case charCodes.digit8:
+      case charCodes.digit9:
+        if (inTemplate) {
+          const codePos = this.state.pos - 1;
+
+          this.state.invalidTemplateEscapePosition = codePos;
+          return null;
+        }
      default:
        if (ch >= charCodes.digit0 && ch <= charCodes.digit7) {
          const codePos = this.state.pos - 1;