Compile unary

qti3e · Aug 4, 2019 · a21d438 · a21d438
1 parent 3fd4e15
commit a21d438
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Showing 2 changed files with 36 additions and 15 deletions.
diff --git a/jsc/src/play.ts b/jsc/src/play.ts
@@ -3,25 +3,14 @@ import { dump } from "./dump";
 
 function main() {
   const source = `
-  var {
-    a,
-    "T": b,
-    _c: c,
-    kids: {
-      _d: d,
-      ...e
-    },
-    list: [f, g, ...h],
-    ...i
-  } = test;
-
-  {
-    var j = 9;
-  }
+void x;
+a - -0;
 `;
 
   const context = new Compiler();
+  console.time("Compile");
   context.compile(source);
+  console.timeEnd("Compile");
   const ret = context.getCompiledProgram();
 
   console.log(dump(ret.main));

diff --git a/jsc/src/visitor.ts b/jsc/src/visitor.ts
@@ -30,6 +30,11 @@ export function visit(writer: Writer, node: estree.Node): void {
       jmp1.here();
       break;
 
+    case "UnaryExpression":
+      visit(writer, node.argument);
+      unaryOperator(writer, node.operator);
+      break;
+
     case "Literal":
       switch (node.value) {
         case true:
@@ -146,3 +151,30 @@ function binaryOperator(writer: Writer, operator: estree.BinaryOperator): void {
       break;
   }
 }
+
+function unaryOperator(writer: Writer, operator: estree.UnaryOperator): void {
+  switch (operator) {
+    case "-":
+      writer.write(ByteCode.Neg);
+      break;
+    case "!":
+      writer.write(ByteCode.Not);
+      break;
+    case "+":
+      writer.write(ByteCode.Pos);
+      break;
+    case "~":
+      writer.write(ByteCode.BitNot);
+      break;
+    case "delete":
+      // TODO(qti3e);
+      writer.write(ByteCode.TODO);
+      break;
+    case "typeof":
+      writer.write(ByteCode.Type);
+      break;
+    case "void":
+      writer.write(ByteCode.Void);
+      break;
+  }
+}