Make yield a contextual keyword (#9400)

2019-01-23 14:33:23 -08:00
parent 42c5d3fc4b
commit 46ba5940c2
38 changed files with 768 additions and 126 deletions
--- a/packages/babel-parser/src/tokenizer/index.js
+++ b/packages/babel-parser/src/tokenizer/index.js
@@ -1360,7 +1360,6 @@ export default class Tokenizer extends LocationParser {
    // `tt.name`.
    if (
      prevType === tt._return ||
-      prevType === tt._yield ||
      (prevType === tt.name && this.state.exprAllowed)
    ) {
      return lineBreak.test(
--- a/packages/babel-parser/src/tokenizer/types.js
+++ b/packages/babel-parser/src/tokenizer/types.js
@@ -190,7 +190,6 @@ export const keywords = Object.create(null, {
  extends: makeKeywordProps("extends", { beforeExpr }),
  export: makeKeywordProps("export"),
  import: makeKeywordProps("import", { startsExpr }),
-  yield: makeKeywordProps("yield", { beforeExpr, startsExpr }),
  null: makeKeywordProps("null", { startsExpr }),
  true: makeKeywordProps("true", { startsExpr }),
  false: makeKeywordProps("false", { startsExpr }),