/*
 * Copyright 2010 Jon S Akhtar (Sylvanaar)
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

package com.sylvanaar.idea.Lua.lang.psi.impl.expressions;

import com.intellij.lang.ASTNode;
import com.intellij.psi.PsiElementVisitor;
import com.intellij.psi.tree.IElementType;
import com.sylvanaar.idea.Lua.lang.lexer.LuaTokenTypes;
import com.sylvanaar.idea.Lua.lang.parser.LuaElementTypes;
import com.sylvanaar.idea.Lua.lang.psi.LuaPsiElement;
import com.sylvanaar.idea.Lua.lang.psi.expressions.LuaExpression;
import com.sylvanaar.idea.Lua.lang.psi.expressions.LuaUnaryExpression;
import com.sylvanaar.idea.Lua.lang.psi.visitor.LuaElementVisitor;
import org.jetbrains.annotations.NotNull;

/**
 * Created by IntelliJ IDEA.
 * User: Jon S Akhtar
 * Date: Jun 12, 2010
 * Time: 11:40:09 PM
 */
public class LuaUnaryExpressionImpl extends LuaExpressionImpl implements LuaUnaryExpression {
    public LuaUnaryExpressionImpl(ASTNode node) {
        super(node);
    }


    @Override
    public String toString() {
        return super.toString() + " ( " + getOperator().getText() + " " + getExpression().getText() +  ")";
    }

    @Override
    public LuaPsiElement getOperator() {
        return (LuaPsiElement) findChildByType(LuaElementTypes.UNARY_OP);
    }

    @Override
    public LuaExpression getExpression() {
        return (LuaExpression) findChildByClass(LuaExpression.class);
    }

    @Override
    public IElementType getOperationTokenType() {
        return getOperator().getNode().findChildByType(LuaTokenTypes.UNARY_OP_SET).getElementType();
    }

    @Override
    public LuaExpression getOperand() {
        return getExpression();
    }


        @Override
    public void accept(LuaElementVisitor visitor) {
        visitor.visitUnaryExpression(this);
    }

    @Override
    public void accept(@NotNull PsiElementVisitor visitor) {
        if (visitor instanceof LuaElementVisitor) {
            ((LuaElementVisitor) visitor).visitUnaryExpression(this);
        } else {
            visitor.visitElement(this);
        }
    }

}

@@ -820,65 +820,8 @@
 e;%0D%0A
-import com.sylvanaar.idea.Lua.lang.lexer.LuaTokenTypes;%0D%0A
 impo
@@ -876,16 +876,16 @@
 Types;%0D%0A
+
 import c
@@ -1512,24 +1512,77 @@
 String() %7B%0D%0A
+        LuaExpression expression = getExpression();%0D%0A
         retu
@@ -1642,21 +1642,56 @@
  + %22 %22 +
- getE
+%0D%0A               (expression != null ? e
 xpressio
@@ -1691,18 +1691,16 @@
 pression
-()
 .getText
@@ -1702,18 +1702,26 @@
 tText() 
+: %22err%22) 
 +
- 
  %22)%22;%0D%0A 
@@ -1946,24 +1946,8 @@
 turn
- (LuaExpression)
  fin
@@ -2101,52 +2101,8 @@
 e().
-findChildByType(LuaTokenTypes.UNARY_OP_SET).
 getE
@@ -2225,20 +2225,16 @@
  %7D%0D%0A%0D%0A%0D%0A
-    
     @Ove

fix an NPE in the tostring