Simplify expression - 1 + 1

ark120202 · ark120202 · commit 456ffdbacbd4 · 2019-05-14T00:36:31.000+05:00
diff --git a/src/LuaTransformer.ts b/src/LuaTransformer.ts
@@ -5094,6 +5094,14 @@ export class LuaTransformer {
         }
 
         if (tstl.isBinaryExpression(expression)) {
+            if (
+                expression.operator === tstl.SyntaxKind.SubtractionOperator &&
+                tstl.isNumericLiteral(expression.right) &&
+                expression.right.value === 1
+            ) {
+                return expression.left;
+            }
+
             expression = tstl.createParenthesizedExpression(expression);
         }
 

Original file line number	Diff line number	Diff line change
`@@ -5094,6 +5094,14 @@ export class LuaTransformer {`
`5094`	`5094`	`}`
`5095`	`5095`
`5096`	`5096`	`if (tstl.isBinaryExpression(expression)) {`
	`5097`	`+ if (`
	`5098`	`+ expression.operator === tstl.SyntaxKind.SubtractionOperator &&`
	`5099`	`+ tstl.isNumericLiteral(expression.right) &&`
	`5100`	`+ expression.right.value === 1`
	`5101`	`+ ) {`
	`5102`	`+ return expression.left;`
	`5103`	`+ }`
	`5104`	`+`
`5097`	`5105`	`expression = tstl.createParenthesizedExpression(expression);`
`5098`	`5106`	`}`
`5099`	`5107`