/// <summary>
/// Creates an instance for cloning.
/// </summary>
/// <returns>Clone of the code element.</returns>
protected override CodeElement DoClone()
{
ConditionDirectiveElement clone = new ConditionDirectiveElement();
if (_elseCondition != null)
{
ConditionDirectiveElement elseClone = _elseCondition.Clone() as ConditionDirectiveElement;
clone._elseCondition = elseClone;
}
return(clone);
}
public void GetAttributeTypeTest()
{
FieldElement fieldElement = new FieldElement();
fieldElement.Name = "TestField";
fieldElement.Access = CodeAccess.Protected;
fieldElement.Type = "int";
string attribute = ElementUtilities.GetAttribute(ElementAttributeType.Type, fieldElement);
Assert.AreEqual("int", attribute, "Unexpected attribute.");
TypeElement typeElement = new TypeElement();
typeElement.Type = TypeElementType.Interface;
attribute = ElementUtilities.GetAttribute(ElementAttributeType.Type, typeElement);
Assert.AreEqual("Interface", attribute, "Unexpected attribute.");
CommentElement commentElement = new CommentElement(CommentType.Block);
attribute = ElementUtilities.GetAttribute(ElementAttributeType.Type, commentElement);
Assert.AreEqual("Block", attribute, "Unexpected attribute.");
UsingElement usingElement = new UsingElement();
usingElement.Name = "MySystem";
usingElement.Redefine = "System";
attribute = ElementUtilities.GetAttribute(ElementAttributeType.Type, usingElement);
Assert.AreEqual("Alias", attribute, "Unexpected attribute.");
ConditionDirectiveElement conditionElement = new ConditionDirectiveElement();
attribute = ElementUtilities.GetAttribute(ElementAttributeType.Type, conditionElement);
Assert.AreEqual(string.Empty, attribute, "Unexpected attribute.");
}
/// <summary>
/// Parses a condition directive.
/// </summary>
/// <param name="line">The line to process.</param>
/// <param name="isIf">Whether or not the directive is an if condition.</param>
/// <returns>Condition directive code element.</returns>
private ConditionDirectiveElement ParseConditionDirective(string line, out bool isIf)
{
int separatorIndex = line.IndexOfAny(WhiteSpaceCharacters);
string directive = null;
if (separatorIndex > 0)
{
directive = line.Substring(0, separatorIndex);
}
else
{
directive = line;
}
directive = VBKeyword.Normalize(directive);
string condition = null;
if (separatorIndex > 0)
{
condition = line.Substring(separatorIndex + 1).Trim();
}
isIf = directive == VBKeyword.If;
switch (directive)
{
case VBKeyword.If:
case VBKeyword.ElseIf:
if (string.IsNullOrEmpty(condition))
{
this.OnParseError("Expected a condition expression");
}
break;
case VBKeyword.Else:
break;
default:
this.OnParseError(
string.Format(
CultureInfo.InvariantCulture,
"Unhandled preprocessor directive '{0}'",
directive));
break;
}
ConditionDirectiveElement conditionDirective = new ConditionDirectiveElement();
conditionDirective.ConditionExpression = condition;
return conditionDirective;
}
/// <summary> /// Processes a condition directive element. /// </summary> /// <param name="element">Condition directive code element.</param> public abstract void VisitConditionDirectiveElement(ConditionDirectiveElement element);
/// <summary>
/// Writes a condition directive element.
/// </summary>
/// <param name="element">Condition directive code element.</param>
public override void VisitConditionDirectiveElement(ConditionDirectiveElement element)
{
const string ConditionFormat = "{0}{1} {2}";
ConditionDirectiveElement conditionDirective = element;
this.WriteIndentedLine(
string.Format(
CultureInfo.InvariantCulture,
ConditionFormat,
VBSymbol.Preprocessor,
VBKeyword.If,
element.ConditionExpression));
if (element.Children.Count == 0)
{
Writer.WriteLine();
}
WriteChildren(element);
if (element.Children.Count > 0)
{
Writer.WriteLine();
}
while (conditionDirective.ElseCondition != null)
{
conditionDirective = conditionDirective.ElseCondition;
if (conditionDirective.ElseCondition == null)
{
this.WriteIndentedLine(VBSymbol.Preprocessor + VBKeyword.Else);
}
else
{
this.WriteIndentedLine(
string.Format(
CultureInfo.InvariantCulture,
ConditionFormat,
VBSymbol.Preprocessor,
VBKeyword.ElseIf,
conditionDirective.ConditionExpression));
}
if (conditionDirective.Children.Count == 0)
{
Writer.WriteLine();
}
WriteChildren(conditionDirective);
if (conditionDirective.Children.Count > 0)
{
Writer.WriteLine();
}
}
this.WriteIndented(VBSymbol.Preprocessor + VBKeyword.End + " " + VBKeyword.If);
}
/// <summary>
/// Creates an instance for cloning.
/// </summary>
/// <returns>Clone of the code element.</returns>
protected override CodeElement DoClone()
{
ConditionDirectiveElement clone = new ConditionDirectiveElement();
if (_elseCondition != null)
{
ConditionDirectiveElement elseClone = _elseCondition.Clone() as ConditionDirectiveElement;
clone._elseCondition = elseClone;
}
return clone;
}
public void DefaultArrangeConditionDirectiveTest()
{
List<ICodeElement> codeElements = new List<ICodeElement>();
ConditionDirectiveElement ifCondition = new ConditionDirectiveElement();
ifCondition.ConditionExpression = "DEBUG";
FieldElement field1 = new FieldElement();
field1.Name = "zField";
field1.Type = "int";
FieldElement field2 = new FieldElement();
field2.Name = "aField";
field2.Type = "int";
ifCondition.AddChild(field1);
ifCondition.AddChild(field2);
ifCondition.ElseCondition = new ConditionDirectiveElement();
FieldElement field3 = new FieldElement();
field3.Name = "testField";
field3.Type = "int";
FieldElement field1Clone = field1.Clone() as FieldElement;
FieldElement field2Clone = field2.Clone() as FieldElement;
TypeElement classElement = new TypeElement();
classElement.Name = "TestClass";
classElement.AddChild(field1Clone);
classElement.AddChild(field2Clone);
ifCondition.ElseCondition.AddChild(field3);
ifCondition.ElseCondition.AddChild(classElement);
codeElements.Add(ifCondition);
CodeArranger arranger = new CodeArranger(CodeConfiguration.Default);
ReadOnlyCollection<ICodeElement> arranged =
arranger.Arrange(codeElements.AsReadOnly());
Assert.AreEqual(1, arranged.Count, "After arranging, an unexpected number of elements were returned.");
ConditionDirectiveElement ifConditionTest = arranged[0] as ConditionDirectiveElement;
Assert.IsNotNull(ifConditionTest, "Expected a condition directive element.");
Assert.AreEqual(2, ifConditionTest.Children.Count,
"After arranging, an unexpected number of nested elements were returned.");
Assert.AreEqual(field2.Name, ifConditionTest.Children[0].Name);
Assert.AreEqual(field1.Name, ifConditionTest.Children[1].Name);
ConditionDirectiveElement elseConditionTest = ifConditionTest.ElseCondition;
Assert.IsNotNull(elseConditionTest, "Expected a condition directive element.");
Assert.AreEqual(2, ifConditionTest.Children.Count,
"After arranging, an unexpected number of nested elements were returned.");
Assert.AreEqual(field3.Name, elseConditionTest.Children[0].Name);
Assert.AreEqual(classElement.Name, elseConditionTest.Children[1].Name);
TypeElement classElementTest = elseConditionTest.Children[1] as TypeElement;
Assert.IsNotNull(classElementTest, "Expected a type element.");
Assert.AreEqual(1, classElementTest.Children.Count);
Assert.AreEqual("Fields", classElementTest.Children[0].Name);
}