Merge pull request #148 from toxamin/main

Fix parsing empty return at end of file

Author: TheGreatSageEqualToHeaven

src/Compilers/Lua/Portable/Parser/LanguageParser.cs

@@ -630,7 +630,8 @@ private ReturnStatementSyntax ParseReturnStatement()
         {
             var returnKeyword = EatToken(SyntaxKind.ReturnKeyword);
             SeparatedSyntaxList<ExpressionSyntax> expressions = default;
-            if (CurrentToken.Kind is not (SyntaxKind.ElseKeyword or SyntaxKind.ElseIfKeyword or SyntaxKind.EndKeyword or SyntaxKind.UntilKeyword or SyntaxKind.SemicolonToken))
+            if (CurrentToken.Kind is not (SyntaxKind.ElseKeyword or SyntaxKind.ElseIfKeyword or SyntaxKind.EndKeyword
+                or SyntaxKind.UntilKeyword or SyntaxKind.SemicolonToken or SyntaxKind.EndOfFileToken))
             {
                 var expressionsAndSeparatorsBuilder =
                     _pool.AllocateSeparated<ExpressionSyntax>();

src/Compilers/Lua/Test/Portable/Parsing/RegressionTests.cs

@@ -258,4 +258,8 @@ public async Task LanguageParser_DoesNotFindGotosNorGotoLabelsWhenAcceptGotoIsNo
                // (1,21): error LUA1003: ) expected
                // ::label:: goto label
                Diagnostic(ErrorCode.ERR_CloseParenExpected, "").WithLocation(1, 21));
+    
+    [Test, WorkItem(147, "https://github.com/LorettaDevs/Loretta/issues/147")]
+    public async Task LanguageParser_WhenParsingEmptyReturnAtEndOfFile_DoNotGenerateErrors()
+        => await ParseAndValidateAsync("return", LuaSyntaxOptions.Lua51);
 }