/// <summary>
/// Reads an anonymous method from the code.
/// </summary>
/// <param name="unsafeCode">Indicates whether the code being parsed resides in an unsafe code block.</param>
/// <returns>Returns the expression.</returns>
private AnonymousMethodExpression GetAnonymousMethodExpression(bool unsafeCode)
{
Param.Ignore(unsafeCode);
// Get the delegate keyword.
Node<CsToken> firstTokenNode = this.tokens.InsertLast(this.GetToken(CsTokenType.Delegate, SymbolType.Delegate));
// Check whether the next symbol is an opening parenthesis.
Symbol symbol = this.GetNextSymbol();
ICollection<Parameter> parameters = null;
if (symbol.SymbolType == SymbolType.OpenParenthesis)
{
parameters = this.ParseAnonymousMethodParameterList(unsafeCode);
}
// Create the anonymous method object now.
AnonymousMethodExpression anonymousMethod = new AnonymousMethodExpression();
// The next symbol must be an opening curly bracket.
Bracket openingBracket = this.GetBracketToken(CsTokenType.OpenCurlyBracket, SymbolType.OpenCurlyBracket);
Node<CsToken> openingBracketNode = this.tokens.InsertLast(openingBracket);
// Read the child statements.
Node<CsToken> closingBracketNode = this.ParseStatementScope(anonymousMethod, unsafeCode);
if (closingBracketNode == null)
{
// If we failed to get a closing bracket back, then there is a syntax
// error in the document since there is an opening bracket with no matching
// closing bracket.
throw this.CreateSyntaxException();
}
openingBracket.MatchingBracketNode = closingBracketNode;
((Bracket)closingBracketNode.Value).MatchingBracketNode = openingBracketNode;
// Create the token list for the anonymous method expression.
anonymousMethod.Tokens = new CsTokenList(this.tokens, firstTokenNode, this.tokens.Last);
// Get the item's argument list if necessary.
if (parameters != null && parameters.Count > 0)
{
anonymousMethod.AddParameters(parameters);
}
// Add a variable for each of the parameters.
if (anonymousMethod.Parameters != null && anonymousMethod.Parameters.Count > 0)
{
// Add a variable for each of the parameters.
foreach (Parameter parameter in anonymousMethod.Parameters)
{
anonymousMethod.Variables.Add(new Variable(
parameter.Type, parameter.Name, VariableModifiers.None, parameter.Location.StartPoint));
}
}
// Return the expression.
return anonymousMethod;
}