/// <summary>
/// Parses and returns a constructor.
/// </summary>
/// <param name="parent">
/// The parent of the element.
/// </param>
/// <param name="elementReference">
/// A reference to the element being created.
/// </param>
/// <param name="unsafeCode">
/// Indicates whether the code is marked as unsafe.
/// </param>
/// <param name="generated">
/// Indicates whether the code is marked as generated code.
/// </param>
/// <param name="xmlHeader">
/// The element's documentation header.
/// </param>
/// <param name="attributes">
/// The attributes on the element.
/// </param>
/// <returns>
/// Returns the element.
/// </returns>
private Constructor ParseConstructor(
CsElement parent, Reference<ICodePart> elementReference, bool unsafeCode, bool generated, XmlHeader xmlHeader, ICollection<Attribute> attributes)
{
Param.AssertNotNull(parent, "parent");
Param.AssertNotNull(elementReference, "elementReference");
Param.Ignore(unsafeCode);
Param.Ignore(generated);
Param.Ignore(xmlHeader);
Param.Ignore(attributes);
Node<CsToken> previousTokenNode = this.tokens.Last;
// Get the modifiers and access.
AccessModifierType accessModifier = AccessModifierType.Private;
Dictionary<CsTokenType, CsToken> modifiers = this.GetElementModifiers(elementReference, ref accessModifier, ConstructorModifiers);
unsafeCode |= modifiers.ContainsKey(CsTokenType.Unsafe);
// Get the name of the constructor.
CsToken name = this.GetElementNameToken(elementReference, unsafeCode);
this.tokens.Add(name);
// Get the parameter list.
IList<Parameter> parameters = this.ParseParameterList(elementReference, unsafeCode, SymbolType.OpenParenthesis);
// Get the constructor initializer if there is one.
MethodInvocationExpression constructorInitializer = null;
Symbol symbol = this.GetNextSymbol(elementReference);
if (symbol.SymbolType == SymbolType.Colon)
{
this.tokens.Add(this.GetToken(CsTokenType.BaseColon, SymbolType.Colon, elementReference));
// The next symbol must be the keyword base or this.
symbol = this.GetNextSymbol(elementReference);
if (symbol.SymbolType != SymbolType.This && symbol.SymbolType != SymbolType.Base)
{
throw this.CreateSyntaxException();
}
Reference<ICodePart> initializerNameExpressionReference = new Reference<ICodePart>();
Node<CsToken> initializerNameTokenNode = this.tokens.InsertLast(this.GetToken(CsTokenType.Other, symbol.SymbolType, initializerNameExpressionReference));
// Get the name expression.
LiteralExpression initializerNameExpression = new LiteralExpression(this.tokens, initializerNameTokenNode);
initializerNameExpressionReference.Target = initializerNameExpression;
// Get the initializer expression.
constructorInitializer = this.GetMethodInvocationExpression(initializerNameExpression, ExpressionPrecedence.None, unsafeCode);
}
// Create the declaration.
Node<CsToken> firstTokenNode = previousTokenNode == null ? this.tokens.First : previousTokenNode.Next;
CsTokenList declarationTokens = new CsTokenList(this.tokens, firstTokenNode, this.tokens.Last);
Declaration declaration = new Declaration(declarationTokens, name.Text, ElementType.Constructor, accessModifier, modifiers);
Constructor constructor = new Constructor(
this.document, parent, xmlHeader, attributes, declaration, parameters, constructorInitializer, unsafeCode, generated);
elementReference.Target = constructor;
// If the constructor is extern, it will not have a body.
if (modifiers.ContainsKey(CsTokenType.Extern))
{
// Get the closing semicolon.
this.tokens.Add(this.GetToken(CsTokenType.Semicolon, SymbolType.Semicolon, elementReference));
}
else
{
// Get the body.
this.ParseStatementContainer(constructor, true, unsafeCode);
}
return constructor;
}
/// <summary>
/// Gets the expected summary text <see cref="Regex"/> for a constructor, based on the type of the constructor.
/// </summary>
/// <param name="constructor">
/// The constructor.
/// </param>
/// <param name="type">
/// The type of the element containing the constructor.
/// </param>
/// <param name="typeRegex">
/// The regular expression for matching the type name.
/// </param>
/// <returns>
/// Returns the expected summary text <see cref="Regex"/>.
/// </returns>
private static string GetExpectedSummaryTextForConstructorType(Constructor constructor, string type, string typeRegex)
{
Param.AssertNotNull(constructor, "constructor");
Param.AssertValidString(type, "type");
Param.AssertValidString(typeRegex, "typeRegex");
if (constructor.Declaration.ContainsModifier(CsTokenType.Static))
{
return string.Format(CultureInfo.InvariantCulture, CachedCodeStrings.HeaderSummaryForStaticConstructor, typeRegex, type);
}
if (constructor.AccessModifier == AccessModifierType.Private && (constructor.Parameters == null || constructor.Parameters.Count == 0))
{
return string.Format(CultureInfo.InvariantCulture, CachedCodeStrings.HeaderSummaryForPrivateInstanceConstructor, typeRegex, type);
}
return string.Format(CultureInfo.InvariantCulture, CachedCodeStrings.HeaderSummaryForInstanceConstructor, typeRegex, type);
}
/// <summary>
/// Gets the example expected summary text for a constructor, based on the type of the constructor.
/// </summary>
/// <param name="constructor">
/// The constructor.
/// </param>
/// <param name="type">
/// The type of the element containing the constructor.
/// </param>
/// <returns>
/// Returns the example summary text.
/// </returns>
private static string GetExampleSummaryTextForConstructorType(Constructor constructor, string type)
{
Param.AssertNotNull(constructor, "constructor");
Param.AssertValidString(type, "type");
if (constructor.Declaration.ContainsModifier(CsTokenType.Static))
{
return string.Format(CultureInfo.InvariantCulture, CachedCodeStrings.ExampleHeaderSummaryForStaticConstructor, constructor.Declaration.Name, type);
}
if (constructor.AccessModifier == AccessModifierType.Private && (constructor.Parameters == null || constructor.Parameters.Count == 0))
{
return string.Format(
CultureInfo.InvariantCulture, CachedCodeStrings.ExampleHeaderSummaryForPrivateInstanceConstructor, constructor.Declaration.Name, type);
}
string classDeclarationName = ((ClassBase)constructor.Parent).Declaration.Name;
string classDeclaration = "{";
if (classDeclarationName.Contains("<"))
{
string genericTypes = classDeclarationName.SubstringAfterLast('<').TrimEnd(new[] { '>' });
string[] generics = genericTypes.Split(',');
for (int i = 0; i < generics.Count(); i++)
{
string parameterDeclaration = generics[i];
classDeclaration += parameterDeclaration;
if (i < generics.Count() - 1)
{
classDeclaration += ",";
}
}
classDeclaration += "}";
}
else
{
classDeclaration = constructor.Declaration.Name;
}
return string.Format(CultureInfo.InvariantCulture, CachedCodeStrings.ExampleHeaderSummaryForInstanceConstructor, classDeclaration, type);
}
/// <summary>
/// Checks a constructor to ensure that the summary text matches the expected text.
/// </summary>
/// <param name="constructor">
/// The constructor to check.
/// </param>
/// <param name="formattedDocs">
/// The formatted header documentation.
/// </param>
private void CheckConstructorSummaryText(Constructor constructor, XmlDocument formattedDocs)
{
Param.AssertNotNull(constructor, "constructor");
Param.AssertNotNull(formattedDocs, "formattedDocs");
XmlNode node = formattedDocs.SelectSingleNode("root/summary");
if (node != null)
{
string summaryText = node.InnerXml.Trim();
string type = constructor.Parent is Struct ? CachedCodeStrings.StructText : CachedCodeStrings.ClassText;
// Get a regex to match the type name.
string typeRegex = BuildCrefValidationStringForType((ClassBase)constructor.FindParentElement());
// Get the full expected summary text.
string expectedRegex = GetExpectedSummaryTextForConstructorType(constructor, type, typeRegex);
if (!Regex.IsMatch(summaryText, expectedRegex, RegexOptions.ExplicitCapture))
{
this.AddViolation(
constructor, Rules.ConstructorSummaryDocumentationMustBeginWithStandardText, GetExampleSummaryTextForConstructorType(constructor, type));
}
}
}
/// <summary>
/// The save default constructor initializer.
/// </summary>
/// <param name="constructor">
/// The constructor.
/// </param>
/// <param name="startedInitilizer">
/// The started initilizer.
/// </param>
private void SaveDefaultConstructorInitializer(Constructor constructor, bool startedInitilizer)
{
if (@constructor.Initializer != null)
{
this.cppWriter.Indent++;
if (!startedInitilizer)
{
this.cppWriter.WriteLine(" : ");
}
else
{
this.cppWriter.WriteLine(",");
}
this.Save(@constructor.Initializer);
this.cppWriter.Indent--;
}
}
/// <summary>
/// The save.
/// </summary>
/// <param name="constructor">
/// The constructor.
/// </param>
private void Save(Constructor @constructor)
{
if (this.HasAnyPointerType(@constructor))
{
return;
}
// 1 to destHeader
this.SaveModifiersBefore(@constructor);
// 1 to destHeader
this.headerWriter.Write(this.GetNameBase(@constructor.Declaration.Name, this.ClassContext.IsTemplate));
if (!this.IsCPPInHeader)
{
// 2 to Source
this.cppWriter.Write(this.currentClassNamespace);
this.cppWriter.Write("::");
this.cppWriter.Write(@constructor.Declaration.Name);
}
var hasParameters = this.SaveParameters(@constructor);
this.SaveModifiersAfter(@constructor);
if (!this.IsCPPInHeader)
{
this.headerWriter.WriteLine(';');
}
this.SaveDefaultConstructorInitializer(constructor, this.SaveFieldInitializersIntoDefaultConstructor(false));
this.Save((ICodeUnit)@constructor);
this.cppWriter.WriteLine();
}