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Support for NonNullExpression #226

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Merged
Perryvw merged 1 commit into from
Oct 11, 2018
+10 −0
Merged

Support for NonNullExpression #226

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2 changes: 2 additions & 0 deletions src/Transpiler.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -803,6 +803,8 @@ export abstract class LuaTranspiler {
return "";
case ts.SyntaxKind.SpreadElement:
return this.transpileSpreadElement(node as ts.SpreadElement);
case ts.SyntaxKind.NonNullExpression:
return this.transpileExpression((node as ts.NonNullExpression).expression);
case ts.SyntaxKind.Block:
this.pushIndent();
const ret = "do \n" + this.transpileBlock(node as ts.Block) + "end\n";
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8 changes: 8 additions & 0 deletions test/unit/expressions.spec.ts
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Expand Up @@ -290,6 +290,14 @@ export class ExpressionTests {
const result = util.transpileAndExecute(`let a = 4; {let a = 42; } return a;`);
Expect(result).toBe(4);
}

@Test("Non-null expression")
public nonNullExpression(): void {
const result = util.transpileAndExecute(`function abc(): number | undefined { return 3; }
const a: number = abc()!;
return a;`);
Expect(result).toBe(3);
}
// ====================================
// Test expected errors
// ====================================
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