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Don't accept '\08' or '\09' in strict mode (#9769)

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This commit is contained in:
Daniel Tschinder
2019-04-01 19:41:50 -07:00
committed by GitHub
parent 123fdfd314
commit c7587c016e
2 changed files with 8 additions and 5 deletions
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10
packages/babel-parser/src/tokenizer/index.js
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@@ -1213,7 +1213,13 @@ export default class Tokenizer extends LocationParser {
octalStr = octalStr.slice(0, -1);
octal = parseInt(octalStr, 8);
}
if (octal > 0) {
this.state.pos += octalStr.length - 1;
const next = this.input.charCodeAt(this.state.pos);
if (
octalStr !== "0" ||
next === charCodes.digit8 ||
next === charCodes.digit9
) {
if (inTemplate) {
this.state.invalidTemplateEscapePosition = codePos;
return null;
@@ -1226,7 +1232,7 @@ export default class Tokenizer extends LocationParser {
this.state.octalPosition = codePos;
}
}
this.state.pos += octalStr.length - 1;
return String.fromCharCode(octal);
}