fixed issues with post ++

Author: Alex D

src/emitterlua.ts

@@ -2740,22 +2740,30 @@ export class EmitterLua {
  switch (node.operator) {
  case ts.SyntaxKind.PlusPlusToken:
  case ts.SyntaxKind.MinusMinusToken:
- this.functionContext.textCode.push("(function () ");
- let opIndex = parseInt(node.pos.toFixed());
- if (opIndex < 0) {
- opIndex = 0;
- }
+ if (this.isValueNotRequired(node.parent))
+ {
+ this.processExpression(node.operand);
+ this.functionContext.textCode.push(" = ");
+ this.processExpression(node.operand);
+ this.functionContext.textCode.push(" + 1");
+ } else {
+ this.functionContext.textCode.push("(function () ");
+ let opIndex = parseInt(node.pos.toFixed());
+ if (opIndex < 0) {
+ opIndex = 0;
+ }
 
- const op = node.operator == ts.SyntaxKind.PlusPlusToken ? '+' : '-';
+  const op = node.operator == ts.SyntaxKind.PlusPlusToken ? '+' : '-';
 
- this.functionContext.textCode.push("local op" + opIndex + " = (");
- this.processExpression(node.operand);
- this.functionContext.textCode.push(") ");
- this.processExpression(node.operand);
- this.functionContext.textCode.push(" = ");
- this.functionContext.textCode.push("op" + opIndex + " + 1 ");
- this.functionContext.textCode.push("return op" + opIndex + " ");
- this.functionContext.textCode.push("end)()");
+ this.functionContext.textCode.push("local op" + opIndex + " = (");
+ this.processExpression(node.operand);
+ this.functionContext.textCode.push(") ");
+ this.processExpression(node.operand);
+ this.functionContext.textCode.push(" = ");
+ this.functionContext.textCode.push("op" + opIndex + " " + op + " 1 ");
+ this.functionContext.textCode.push("return op" + opIndex + " ");
+ this.functionContext.textCode.push("end)()");
+ }
 
  break;
  }

test/test.ts

@@ -1,5 +1,4 @@
-let a = 1; 
- console.log(++a); 
- console.log(--a); 
- console.log(a++); 
- console.log(a--); 
+var someArray = [9, 2, 5]; 
+ for (var item of someArray) { 
+ console.log(item); 
+ }