// <file>
// <copyright see="prj:///doc/copyright.txt"/>
// <license see="prj:///doc/license.txt"/>
// <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
// <version>$Revision: 1609 $</version>
// </file>
using System;
using System.Collections.Generic;
using System.CodeDom;
using NUnit.Framework;
using ICSharpCode.NRefactory.Parser;
using ICSharpCode.NRefactory.Ast;
using ICSharpCode.NRefactory.Visitors;
namespace ICSharpCode.NRefactory.Tests.Output.CodeDom.Tests
{
[TestFixture]
public class InvocationExpressionsTests
{
[Test]
public void IdentifierOnlyInvocation()
{
// InitializeComponents();
IdentifierExpression identifier = new IdentifierExpression("InitializeComponents");
InvocationExpression invocation = new InvocationExpression(identifier, new List<Expression>());
object output = invocation.AcceptVisitor(new CodeDomVisitor(), null);
Assert.IsTrue(output is CodeMethodInvokeExpression);
CodeMethodInvokeExpression mie = (CodeMethodInvokeExpression)output;
Assert.AreEqual("InitializeComponents", mie.Method.MethodName);
Assert.IsTrue(mie.Method.TargetObject is CodeThisReferenceExpression);
}
[Test]
public void MethodOnThisReferenceInvocation()
{
// InitializeComponents();
FieldReferenceExpression field = new FieldReferenceExpression(new ThisReferenceExpression(), "InitializeComponents");
InvocationExpression invocation = new InvocationExpression(field, new List<Expression>());
object output = invocation.AcceptVisitor(new CodeDomVisitor(), null);
Assert.IsTrue(output is CodeMethodInvokeExpression);
CodeMethodInvokeExpression mie = (CodeMethodInvokeExpression)output;
Assert.AreEqual("InitializeComponents", mie.Method.MethodName);
Assert.IsTrue(mie.Method.TargetObject is CodeThisReferenceExpression);
}
[Test]
public void InvocationOfStaticMethod()
{
// System.Drawing.Color.FromArgb();
FieldReferenceExpression field = new FieldReferenceExpression(new IdentifierExpression("System"), "Drawing");
field = new FieldReferenceExpression(field, "Color");
field = new FieldReferenceExpression(field, "FromArgb");
InvocationExpression invocation = new InvocationExpression(field, new List<Expression>());
object output = invocation.AcceptVisitor(new CodeDomVisitor(), null);
Assert.IsTrue(output is CodeMethodInvokeExpression);
CodeMethodInvokeExpression mie = (CodeMethodInvokeExpression)output;
Assert.AreEqual("FromArgb", mie.Method.MethodName);
Assert.IsTrue(mie.Method.TargetObject is CodeTypeReferenceExpression);
Assert.AreEqual("System.Drawing.Color", (mie.Method.TargetObject as CodeTypeReferenceExpression).Type.BaseType);
}
[Test]
public void ComplexExample()
{
string code = @"class A {
Button closeButton;
void M() {
System.Windows.Forms.Panel panel1;
closeButton = new System.Windows.Forms.Button();
panel1 = new System.Windows.Forms.Panel();
panel1.SuspendLayout();
panel1.Controls.Add(this.closeButton);
closeButton.BackColor = System.Drawing.Color.FromArgb();
panel1.BackColor = System.Drawing.SystemColors.Info;
}
}";
TypeDeclaration decl = Ast.ParseUtilCSharp.ParseGlobal<TypeDeclaration>(code);
CompilationUnit cu = new CompilationUnit();
cu.AddChild(decl);
CodeNamespace ns = (CodeNamespace)cu.AcceptVisitor(new CodeDomVisitor(), null);
Assert.AreEqual("A", ns.Types[0].Name);
Assert.AreEqual("closeButton", ns.Types[0].Members[0].Name);
Assert.AreEqual("M", ns.Types[0].Members[1].Name);
CodeMemberMethod m = (CodeMemberMethod)ns.Types[0].Members[1];
CodeVariableDeclarationStatement s0 = (CodeVariableDeclarationStatement)m.Statements[0];
Assert.AreEqual("panel1", s0.Name);
Assert.AreEqual("System.Windows.Forms.Panel", s0.Type.BaseType);
CodeAssignStatement cas = (CodeAssignStatement)m.Statements[1];
Assert.AreEqual("closeButton", ((CodeFieldReferenceExpression)cas.Left).FieldName);
cas = (CodeAssignStatement)m.Statements[2];
Assert.AreEqual("panel1", ((CodeVariableReferenceExpression)cas.Left).VariableName);
CodeExpressionStatement ces = (CodeExpressionStatement)m.Statements[3];
CodeMethodInvokeExpression mie = (CodeMethodInvokeExpression)ces.Expression;
Assert.AreEqual("SuspendLayout", mie.Method.MethodName);
Assert.AreEqual("panel1", ((CodeVariableReferenceExpression)mie.Method.TargetObject).VariableName);
ces = (CodeExpressionStatement)m.Statements[4];
mie = (CodeMethodInvokeExpression)ces.Expression;
Assert.AreEqual("Add", mie.Method.MethodName);
CodePropertyReferenceExpression pre = (CodePropertyReferenceExpression)mie.Method.TargetObject;
Assert.AreEqual("Controls", pre.PropertyName);
Assert.AreEqual("panel1", ((CodeVariableReferenceExpression)pre.TargetObject).VariableName);
cas = (CodeAssignStatement)m.Statements[5];
pre = (CodePropertyReferenceExpression)cas.Left;
Assert.AreEqual("BackColor", pre.PropertyName);
Assert.AreEqual("closeButton", ((CodeFieldReferenceExpression)pre.TargetObject).FieldName);
mie = (CodeMethodInvokeExpression)cas.Right;
Assert.AreEqual("FromArgb", mie.Method.MethodName);
Assert.IsTrue(mie.Method.TargetObject is CodeTypeReferenceExpression);
Assert.AreEqual("System.Drawing.Color", (mie.Method.TargetObject as CodeTypeReferenceExpression).Type.BaseType);
cas = (CodeAssignStatement)m.Statements[6];
pre = (CodePropertyReferenceExpression)cas.Left;
Assert.AreEqual("BackColor", pre.PropertyName);
Assert.AreEqual("panel1", ((CodeVariableReferenceExpression)pre.TargetObject).VariableName);
pre = (CodePropertyReferenceExpression)cas.Right;
Assert.AreEqual("Info", pre.PropertyName);
Assert.IsTrue(pre.TargetObject is CodeTypeReferenceExpression);
Assert.AreEqual("System.Drawing.SystemColors", (pre.TargetObject as CodeTypeReferenceExpression).Type.BaseType);
}
}
}