/// <summary>
/// Extracts a variable from the clause.
/// </summary>
/// <param name="firstToken">The first token of the variable.</param>
/// <param name="allowTypelessVariable">Indicates whether to allow a variable with no type defined.</param>
/// <param name="onlyTypelessVariable">Indicates whether to only get a typeless variable.</param>
/// <returns>Returns the variable.</returns>
protected static QueryClauseVariable ExtractQueryVariable(Token firstToken, bool allowTypelessVariable, bool onlyTypelessVariable)
{
Param.RequireNotNull(firstToken, "firstToken");
Param.Ignore(allowTypelessVariable);
Param.Ignore(onlyTypelessVariable);
if (onlyTypelessVariable || !firstToken.Is(TokenType.Type))
{
// In this case there is no type, only an identifier.
return(new QueryClauseVariable(null, firstToken.Text, firstToken.Location, firstToken.Generated));
}
else
{
TypeToken type = (TypeToken)firstToken;
// Attempt to get the identifier token coming after the type token.
Token identifier = firstToken.FindNextSiblingToken();
if (identifier == null || identifier.TokenType != TokenType.Literal)
{
CsLanguageService.Debug.Assert(allowTypelessVariable, "The clause does not allow typeless variables. The parser should have thrown syntax exception already.");
return(new QueryClauseVariable(null, type.Text, type.Location, type.Generated));
}
else
{
// There is a type and an identifier.
return(new QueryClauseVariable(type, identifier.Text, CodeUnit.JoinLocations(type, identifier), type.Generated || identifier.Generated));
}
}
}
/// <summary>
/// Initializes a new instance of the QueryClauseVariable class.
/// </summary>
/// <param name="type">The type of the variable.</param>
/// <param name="name">The name of the variable.</param>
/// <param name="location">The location of the variable.</param>
/// <param name="generated">Indicates whethre the variable is located within a block of generated code.</param>
internal QueryClauseVariable(TypeToken type, string name, CodeLocation location, bool generated)
{
Param.Ignore(type);
Param.RequireValidString(name, "name");
Param.RequireNotNull(location, "location");
Param.Ignore(generated);
this.type = type;
this.name = name;
this.location = location;
this.generated = generated;
}
/// <summary>
/// Gets the name of the element.
/// </summary>
/// <returns>The name of the element.</returns>
protected override string GetElementName()
{
// Get the return type.
TypeToken r = this.FindFirstChild <TypeToken>();
if (r != null)
{
// The next Token is the name.
Token nameToken = r.FindNextSiblingToken();
if (nameToken != null)
{
return(nameToken.Text);
}
}
throw new SyntaxException(this.Document, this.LineNumber);
}
/// <summary>
/// Initializes a new instance of the Indexer class.
/// </summary>
/// <param name="proxy">Proxy object for the indexer.</param>
/// <param name="name">The name of the indexer.</param>
/// <param name="attributes">The list of attributes attached to this element.</param>
/// <param name="returnType">The return type of the indexer.</param>
/// <param name="unsafeCode">Indicates whether the element resides within a block of unsafe code.</param>
internal Indexer(CodeUnitProxy proxy, string name, ICollection<Attribute> attributes, TypeToken returnType, bool unsafeCode)
: base(proxy, ElementType.Indexer, name, attributes, unsafeCode)
{
Param.AssertNotNull(proxy, "proxy");
Param.AssertValidString(name, "name");
Param.Ignore(attributes);
Param.AssertNotNull(returnType, "returnType");
Param.Ignore(unsafeCode);
this.returnType.Value = returnType;
}
/// <summary>
/// Initializes a new instance of the Field class.
/// </summary>
/// <param name="proxy">Proxy object for the field.</param>
/// <param name="name">The name of the field.</param>
/// <param name="attributes">The list of attributes attached to this element.</param>
/// <param name="fieldType">The type of the field.</param>
/// <param name="unsafeCode">Indicates whether the element resides within a block of unsafe code.</param>
internal Field(CodeUnitProxy proxy, string name, ICollection <Attribute> attributes, TypeToken fieldType, bool unsafeCode)
: base(proxy, ElementType.Field, name, attributes, unsafeCode)
{
Param.AssertNotNull(proxy, "proxy");
Param.AssertValidString(name, "name");
Param.Ignore(attributes);
Param.AssertNotNull(fieldType, "fieldType");
Param.Ignore(unsafeCode);
this.fieldType.Value = fieldType;
}
/// <summary>
/// Initializes a new instance of the Event class.
/// </summary>
/// <param name="proxy">Proxy object for the event.</param>
/// <param name="name">The name of the event.</param>
/// <param name="attributes">The list of attributes attached to this element.</param>
/// <param name="eventHandlerType">The type of the event handler.</param>
/// <param name="unsafeCode">Indicates whether the element resides within a block of unsafe code.</param>
internal Event(CodeUnitProxy proxy, string name, ICollection <Attribute> attributes, TypeToken eventHandlerType, bool unsafeCode)
: base(proxy, ElementType.Event, name, attributes, unsafeCode)
{
Param.AssertNotNull(proxy, "proxy");
Param.AssertValidString(name, "name");
Param.Ignore(attributes);
Param.AssertNotNull(eventHandlerType, "eventHandlerType");
Param.Ignore(unsafeCode);
this.eventHandlerType.Value = eventHandlerType;
}
/// <summary>
/// Initializes a new instance of the Delegate class.
/// </summary>
/// <param name="proxy">Proxy object for the delegate.</param>
/// <param name="name">The name of the delegate.</param>
/// <param name="attributes">The list of attributes attached to this element.</param>
/// <param name="returnType">The return type.</param>
/// <param name="typeConstraints">The list of type constraints on the element.</param>
/// <param name="unsafeCode">Indicates whether the element resides within a block of unsafe code.</param>
internal Delegate(CodeUnitProxy proxy, string name, ICollection <Attribute> attributes, TypeToken returnType, ICollection <TypeParameterConstraintClause> typeConstraints, bool unsafeCode)
: base(proxy, ElementType.Delegate, name, attributes, unsafeCode)
{
Param.AssertNotNull(proxy, "proxy");
Param.AssertValidString(name, "name");
Param.Ignore(attributes);
Param.AssertNotNull(returnType, "returnType");
Param.Ignore(typeConstraints);
Param.Ignore(unsafeCode);
this.returnType.Value = returnType;
this.typeConstraints.Value = typeConstraints ?? TypeParameterConstraintClause.EmptyTypeParameterConstraintClause;
CsLanguageService.Debug.Assert(typeConstraints == null || typeConstraints.IsReadOnly, "Must be a read-only collection.");
}
/// <summary>
/// Initializes a new instance of the Method class.
/// </summary>
/// <param name="proxy">Proxy object for the method.</param>
/// <param name="name">The name of the method.</param>
/// <param name="attributes">The list of attributes attached to this element.</param>
/// <param name="returnType">The method's return type.</param>
/// <param name="typeConstraints">The list of type constraints on the element.</param>
/// <param name="unsafeCode">Indicates whether the element resides within a block of unsafe code.</param>
internal Method(CodeUnitProxy proxy, string name, ICollection <Attribute> attributes, TypeToken returnType, ICollection <TypeParameterConstraintClause> typeConstraints, bool unsafeCode)
: base(proxy, ElementType.Method, name, attributes, unsafeCode)
{
Param.AssertNotNull(proxy, "proxy");
Param.AssertValidString(name, "name");
Param.Ignore(attributes);
Param.Ignore(returnType);
Param.Ignore(typeConstraints);
Param.Ignore(unsafeCode);
CsLanguageService.Debug.Assert(
returnType != null || this.ContainsModifier(TokenType.Explicit, TokenType.Implicit),
"A method's return type can only be null in an explicit or implicit operator overload method.");
this.returnType.Value = returnType;
this.typeConstraints.Value = typeConstraints ?? TypeParameterConstraintClause.EmptyTypeParameterConstraintClause;
CsLanguageService.Debug.Assert(typeConstraints == null || typeConstraints.IsReadOnly, "Must be a read-only collection.");
}
