/// <summary>
/// Gets the base name and generic symbols for a type token.
/// </summary>
/// <param name="typeTokenProxy">Proxy object for the TypeToken being created.</param>
/// <param name="startIndex">The start index within the symbol list.</param>
/// <param name="unsafeCode">Indicates whether the type is within a block of unsafe code.</param>
private void GetTypeTokenBaseName(ref CodeUnitProxy typeTokenProxy, ref int startIndex, bool unsafeCode)
{
Param.AssertNotNull(typeTokenProxy, "typeTokenProxy");
Param.AssertGreaterThanOrEqualToZero(startIndex, "startIndex");
Param.Ignore(unsafeCode);
Symbol symbol = this.symbols.Peek(startIndex);
// First get the full name of the type.
int index = -1;
while (true)
{
this.GatherNonTokenSymbols(typeTokenProxy, ref startIndex);
symbol = this.symbols.Peek(startIndex);
var innerTypeTokenProxy = new CodeUnitProxy(this.document);
// Add the next word. The type of the next word must either be an unknown
// word type, which will be the name of the next item in the type, or else
// it must be the 'this' keyword. This is used when implementing an explicit
// interface member which is an indexer.
if (symbol.SymbolType == SymbolType.Other || symbol.SymbolType == SymbolType.This)
{
innerTypeTokenProxy.Children.Add(new LiteralToken(this.document, symbol.Text, symbol.Location, this.symbols.Generated));
}
else
{
throw new SyntaxException(this.document, symbol.LineNumber);
}
++startIndex;
// Look at the type of the next non-whitespace character.
index = this.GetNextCodeSymbolIndex(startIndex);
if (index == -1)
{
break;
}
// If the next character is an opening generic bracket, get the generic.
GenericTypeToken generic = null;
symbol = this.symbols.Peek(index);
if (symbol.SymbolType == SymbolType.LessThan)
{
int end;
if (this.GetGenericArgumentList(innerTypeTokenProxy, unsafeCode, null, startIndex, out end))
{
// Create a new GenericTypeToken which represents this generic type.
generic = new GenericTypeToken(innerTypeTokenProxy);
typeTokenProxy.Children.Add(generic);
// Advance the symbol index.
startIndex = end + 1;
// Look at the type of the next non-whitespace character.
index = this.GetNextCodeSymbolIndex(startIndex);
if (index == -1)
{
break;
}
}
}
if (generic == null)
{
// Since this is not a generic type, it is just a regular type token. Create and add this type token.
TypeToken innerType = new TypeToken(innerTypeTokenProxy);
typeTokenProxy.Children.Add(innerType);
}
// If the next character is not a dot or a qualified alias, break now.
symbol = this.symbols.Peek(index);
if (symbol.SymbolType != SymbolType.Dot && symbol.SymbolType != SymbolType.QualifiedAlias)
{
break;
}
// Add any whitspace.
this.GatherNonTokenSymbols(typeTokenProxy, ref startIndex);
symbol = this.symbols.Peek(startIndex);
// Add the dot or qualified alias.
if (symbol.SymbolType == SymbolType.Dot)
{
typeTokenProxy.Children.Add(new MemberAccessOperator(this.document, symbol.Text, symbol.Location, this.symbols.Generated));
}
else
{
CsLanguageService.Debug.Assert(symbol.SymbolType == SymbolType.QualifiedAlias, "Expected a qualified alias keyword");
typeTokenProxy.Children.Add(new QualifiedAliasOperator(this.document, symbol.Text, symbol.Location, this.symbols.Generated));
}
// Get the next symbol.
symbol = this.symbols.Peek(++startIndex);
}
}
/// <summary>
/// Reads a generic token from the document.
/// </summary>
/// <param name="unsafeCode">Indicates whether the code is marked as unsafe.</param>
/// <param name="startIndex">The first index of the generic.</param>
/// <param name="lastIndex">Returns the last index of the generic.</param>
/// <returns>Returns the generic token, or null if the symbol manager is not sitting on a generic.</returns>
/// <remarks>This should only be called by GetGenericToken.</remarks>
private GenericTypeToken GetGenericTokenAux(bool unsafeCode, int startIndex, out int lastIndex)
{
Param.Ignore(unsafeCode);
Param.AssertGreaterThanOrEqualToZero(startIndex, "startIndex");
lastIndex = -1;
// The reference to the generic token.
var genericTokenProxy = new CodeUnitProxy(this.document);
// Get the first symbol. This should be an unknown word type.
Symbol firstSymbol = this.symbols.Peek(startIndex);
CsLanguageService.Debug.Assert(firstSymbol != null && firstSymbol.SymbolType == SymbolType.Other, "Expected a text symbol");
// This will hold the generic type if we create one.
GenericTypeToken generic = null;
// Create a token for the name.
var name = new LiteralToken(this.document, firstSymbol.Text, firstSymbol.Location, this.symbols.Generated);
// Get the argument list. This will return null if this is not a generic.
if (this.GetGenericArgumentList(genericTokenProxy, unsafeCode, name, startIndex + 1, out lastIndex))
{
generic = new GenericTypeToken(genericTokenProxy);
}
return generic;
}
