Add ConditionalExpression

qti3e · Aug 13, 2019 · 488073f · 488073f
1 parent a8276a5
commit 488073f
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Showing 2 changed files with 13 additions and 4 deletions.
diff --git a/jsc/src/play.ts b/jsc/src/play.ts
@@ -11,9 +11,7 @@ import { dump } from "./dump";
 
 function main() {
   const source = `
-  do {
-    x++;
-  } while (true);
+  const x = true ? 1 : 0;
 `;
 
   const context = new Compiler();

diff --git a/jsc/src/visitor.ts b/jsc/src/visitor.ts
@@ -427,7 +427,14 @@ export function visit(writer: Writer, node: estree.Node): void {
       break;
     }
 
-    case "EmptyStatement": {
+    case "ConditionalExpression": {
+      visit(writer, node.test);
+      const jmp = writer.jmp(ByteCode.JmpFalsePop);
+      visit(writer, node.consequent);
+      const jmp2 = writer.jmp(ByteCode.Jmp);
+      jmp.next();
+      visit(writer, node.alternate);
+      jmp2.next();
       break;
     }
 
@@ -440,6 +447,10 @@ export function visit(writer: Writer, node: estree.Node): void {
       break;
     }
 
+    case "EmptyStatement": {
+      break;
+    }
+
     default:
       // TODO(qti3e)
       writer.write(ByteCode.TODO);