Add hasFollowingLineBreak

babel · Feb 8, 2021 · da8ce69 · da8ce69
1 parent c6e4386
commit da8ce69
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Showing 2 changed files with 11 additions and 3 deletions.
diff --git a/packages/babel-parser/src/parser/util.js b/packages/babel-parser/src/parser/util.js
@@ -90,8 +90,16 @@ export default class UtilParser extends Tokenizer {
     );
   }
 
-  hasPrecedingLineBreak(state: State = this.state): boolean {
-    return lineBreak.test(this.input.slice(state.lastTokEnd, state.start));
+  hasPrecedingLineBreak(): boolean {
+    return lineBreak.test(
+      this.input.slice(this.state.lastTokEnd, this.state.start),
+    );
+  }
+
+  hasFollowingLineBreak(): boolean {
+    return lineBreak.test(
+      this.input.slice(this.state.end, this.nextTokenStart()),
+    );
   }
 
   // TODO

diff --git a/packages/babel-parser/src/plugins/typescript/index.js b/packages/babel-parser/src/plugins/typescript/index.js
@@ -2861,7 +2861,7 @@ export default (superClass: Class<Parser>): Class<Parser> =>
         // To avoid
         //   abstract interface
         //   Foo {}
-        if (!this.hasPrecedingLineBreak(this.lookahead())) {
+        if (!this.hasFollowingLineBreak()) {
           node.abstract = true;
           this.raise(
             node.start,