/// <summary>
/// Reads a typeof expression from the code.
/// </summary>
/// <param name="parentReference">
/// The parent code unit.
/// </param>
/// <param name="unsafeCode">
/// Indicates whether the code being parsed resides in an unsafe code block.
/// </param>
/// <returns>
/// Returns the expression.
/// </returns>
private TypeofExpression GetTypeofExpression(Reference<ICodePart> parentReference, bool unsafeCode)
{
Param.AssertNotNull(parentReference, "parentReference");
Param.Ignore(unsafeCode);
Reference<ICodePart> expressionReference = new Reference<ICodePart>();
// Get the typeof keyword.
Node<CsToken> firstTokenNode = this.tokens.InsertLast(this.GetToken(CsTokenType.Typeof, SymbolType.Typeof, parentReference, expressionReference));
// The next symbol will be the opening parenthesis.
Bracket openParenthesis = this.GetBracketToken(CsTokenType.OpenParenthesis, SymbolType.OpenParenthesis, expressionReference);
Node<CsToken> openParenthesisNode = this.tokens.InsertLast(openParenthesis);
// Get the inner expression representing the type.
LiteralExpression typeTokenExpression = this.GetTypeTokenExpression(expressionReference, unsafeCode, true);
if (typeTokenExpression == null)
{
throw this.CreateSyntaxException();
}
// Get the closing parenthesis.
Bracket closeParenthesis = this.GetBracketToken(CsTokenType.CloseParenthesis, SymbolType.CloseParenthesis, expressionReference);
Node<CsToken> closeParenthesisNode = this.tokens.InsertLast(closeParenthesis);
openParenthesis.MatchingBracketNode = closeParenthesisNode;
closeParenthesis.MatchingBracketNode = openParenthesisNode;
// Create the token list for the method invocation expression.
CsTokenList partialTokens = new CsTokenList(this.tokens, firstTokenNode, this.tokens.Last);
// Create and return the expression.
TypeofExpression expression = new TypeofExpression(partialTokens, typeTokenExpression);
expressionReference.Target = expression;
return expression;
}
/// <summary>
/// The save.
/// </summary>
/// <param name="typeofExpression">
/// The typeof expression.
/// </param>
private void Save(TypeofExpression typeofExpression)
{
this.cppWriter.Write("TypeName(");
this.Save(new TypeResolver(typeofExpression.Type, this), this.cppWriter, SavingOptions.RemovePointer);
this.cppWriter.Write("::typeid)");
}