feat: conditional expressions (#97)

The ternary conditional operator `? :` is right-associative as common in languages with C-like syntax --------- Co-authored-by: Anton Trunov <anton@ton.org>
tact-lang · Feb 15, 2024 · 4ff1bb6 · 4ff1bb6
1 parent 23452a8
commit 4ff1bb6
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diff --git a/src/generator/writers/writeExpression.ts b/src/generator/writers/writeExpression.ts
@@ -576,6 +576,14 @@ export function writeExpression(f: ASTExpression, ctx: WriterContext): string {
         return `${ops.contractInitChild(f.name, ctx)}(${['__tact_context_sys', ...f.args.map((a, i) => writeCastedExpression(a, type.init!.args[i].type, ctx))].join(', ')})`;
     }
 
+    //
+    // Ternary operator
+    //
+
+    if (f.kind === 'conditional') {
+        return `(${writeExpression(f.condition, ctx)} ? ${writeExpression(f.thenBranch, ctx)} : ${writeExpression(f.elseBranch, ctx)})`;
+    }
+
     //
     // Unreachable
     //