Prevent regex literal in .brs mode

rokucommunity · Oct 5, 2021 · 57cca5d · 57cca5d
1 parent f62ee46
commit 57cca5d
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Showing 2 changed files with 12 additions and 0 deletions.
diff --git a/src/parser/Parser.ts b/src/parser/Parser.ts
@@ -1398,6 +1398,7 @@ export class Parser {
     }
 
     private regexLiteralExpression() {
+        this.warnIfNotBrighterScriptMode('regular expression literal');
         return new RegexLiteralExpression({
             regexLiteral: this.advance()
         });

diff --git a/src/parser/tests/expression/RegexLiteralExpression.spec.ts b/src/parser/tests/expression/RegexLiteralExpression.spec.ts
@@ -1,6 +1,8 @@
 import { Program } from '../../../Program';
 import { standardizePath as s } from '../../../util';
 import { getTestTranspile } from '../../../testHelpers.spec';
+import { expect } from 'chai';
+import { DiagnosticMessages } from '../../../DiagnosticMessages';
 
 describe('RegexLiteralExpression', () => {
     let rootDir = s`${process.cwd()}/rootDir`;
@@ -63,6 +65,15 @@ describe('RegexLiteralExpression', () => {
             `);
         });
 
+        it('warns when in non-brighterscript mode', () => {
+            program.addOrReplaceFile('source/main.brs', `
+                sub main()
+                    print /"/
+                end sub
+            `);
+            expect(program.getDiagnostics()[0].code).to.eql(DiagnosticMessages.bsFeatureNotSupportedInBrsFiles('').code);
+        });
+
         it('handles edge cases', () => {
             testTranspile(`
                 sub main()