public override void Visit(IdentifierExpressionNode node)
{
var ident = node.IdentifierToken;
if (!ident.IsMissing)
{
if (!ident.Text.StartsWith('_'))
{
var sym = _scope.Resolve(ident.Text);
if (sym != null)
{
node.SetAnnotation("Symbol", sym);
}
else
{
Error(node, SyntaxDiagnosticKind.UnknownValueName, ident.Location,
$"Unknown declaration or value name '{ident}'");
}
}
else
{
Error(node, SyntaxDiagnosticKind.DiscardedVariableUsed, ident.Location,
$"Use of discarded variable name '{ident}'");
}
}
base.Visit(node);
}
private StatementNode?ParseExpressionStatement(ref int index)
{
ExpressionNode?expression = expressionParser.ParseNextExpression(ref index);
if (expression == null)
{
return(null);
}
return(expression switch
{
FunctionCallExpressionNode functionCall => ParseFunctionCallStatement(functionCall, ref index),
IdentifierExpressionNode identifierExpression => ParseVariableAssignmentStatement(ref index, identifierExpression.IdentifierNode, expression),
_ => Error(),
});
// private void OptionalFunctCall()
// {
// printDebug("Optional Funct Call");
// if (Match(TokenType.PAREN_OPEN))
// {
// MatchExactly(TokenType.PAREN_OPEN);
// ArgumentList();
// MatchExactly(TokenType.PAREN_CLOSE);
// }
// else
// {
// // epsilon
// }
// }
private ExpressionNode InstanceExpression()
{
printDebug("Instance Expression");
var new_left = new IdentifierExpressionNode();
if (Match(TokenType.ID))
{
var id = ConsumeToken();
var x = new List <Token>();
x.Add(id);
IdentifierAttribute(ref x);
var type = new IdentifierTypeNode(new IdentifierNode(x)) as TypeDeclarationNode;
return(InstanceExpressionFactorized(ref type));
// return new InstanceExpressionNode(type, initializer);
}
else
{
var type = TypeDetector(ConsumeToken().type, new IdentifierNode());
return(InstanceExpressionFactorized(ref type));
// return new InstanceExpressionNode(type, initializer);
}
}
private TypeSymbolNode?BindIdentifierExpression(IdentifierExpressionNode identifierExpression,
VariableIdentifierMap variableIdentifierMap)
{
SymbolNode?symbol = GetExpressionSymbol(identifierExpression.Identifier, variableIdentifierMap);
if (symbol == null)
{
ErrorProvider.ReportError(ErrorCode.CantFindIdentifierInScope,
Compilation,
identifierExpression);
return(null);
}
identifierExpression.Bind(symbol);
switch (symbol)
{
case VariableSymbolNode variable:
{
TypeSymbolNode?variableType = variable.TypeNode;
Debug.Assert(variableType != null);
return(variableType);
}
case ConstantSymbolNode constant:
return(constant.Type);
case FunctionSymbolNode:
ErrorProvider.ReportError(ErrorCode.FunctionNotValidInContext,
Compilation,
identifierExpression);
return(null);
default:
Debug.Fail(message: "A type was forgotten...");
return(null);
}
}
public override void Visit(IdentifierExpressionNode node)
{
GetValueOfIdentifier(node.identifier.name, "eax");
}
public override void Visit(IdentifierExpressionNode node)
{
node.ExpressionType = LookupSymbolType(node.identifier.name);
}
public override void Visit(IdentifierExpressionNode node)
{
Console.WriteLine(this.indentation + "Identifier: " + node.identifier.name);
}
public override PapyrusType VisitIdentifierExpression(IdentifierExpressionNode node)
{
return(node.Identifier.GetDeclaredOrReferencedSymbol()?.GetPapyrusType());
}
Expression Analyze(IdentifierExpressionNode node, Expression value = null)
{
var searchResult = _analysisContext.TopSymbolTable.FindInScopeTree(node.Identifier.Text);
if (searchResult == null)
{
_analysisContext.ErrorCollector.UndefinedVariable(node.Identifier);
return Expression.Empty();
}
return value == null ? searchResult.GetGetExpression() : searchResult.GetSetExpression(value);
}
public override void Visit(IdentifierExpressionNode node)
{
base.Visit(node);
_result = this.Analyze(node);
}
protected override void DoAction(int action)
{
switch (action)
{
case 2: // Program -> MainClassDecl, ClassDeclList_Opt
{ CurrentSemanticValue = new ProgramNode((MainClassDeclNode)ValueStack[ValueStack.Depth - 2], (ClassDeclListNode)ValueStack[ValueStack.Depth - 1], LineNumber); Analysis.AST = (ProgramNode)CurrentSemanticValue; }
break;
case 3: // MainClassDecl -> ClassKeyword, Identifier, CurlyBracketOpen, PublicKeyword,
// StaticKeyword, VoidKeyword, MainKeyword, RoundBracketOpen,
// StringKeyword, SquareBracketOpen, SquareBracketClose,
// Identifier, RoundBracketClose, CurlyBracketOpen, Statement,
// CurlyBracketClose, CurlyBracketClose
{ CurrentSemanticValue = new MainClassDeclNode((IdentifierNode)ValueStack[ValueStack.Depth - 16], (IdentifierNode)ValueStack[ValueStack.Depth - 6], (StatementNode)ValueStack[ValueStack.Depth - 3], LineNumber); }
break;
case 4: // ClassDeclList_Opt -> ClassDeclList_Opt, ClassDecl
{ ((ClassDeclListNode)ValueStack[ValueStack.Depth - 2]).AddClassDecl((ClassDeclNode)ValueStack[ValueStack.Depth - 1]); CurrentSemanticValue = ValueStack[ValueStack.Depth - 2]; }
break;
case 5: // ClassDeclList_Opt -> /* empty */
{ CurrentSemanticValue = new ClassDeclListNode(LineNumber); }
break;
case 6: // ClassDecl -> ClassKeyword, Identifier, Extends_Opt, CurlyBracketOpen,
// VariableDeclList_Opt, MethodDeclList_Opt, CurlyBracketClose
{ CurrentSemanticValue = new ClassDeclNode((IdentifierNode)ValueStack[ValueStack.Depth - 6], (ExtendsNode)ValueStack[ValueStack.Depth - 5], (VariableDeclListNode)ValueStack[ValueStack.Depth - 3], (MethodDeclListNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 7: // Extends_Opt -> ExtendsKeyword, Identifier
{ CurrentSemanticValue = new ExtendsNode((IdentifierNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 9: // MethodDeclList_Opt -> MethodDeclList_Opt, MethodDecl
{ ((MethodDeclListNode)ValueStack[ValueStack.Depth - 2]).AddMethodDecl((MethodDeclNode)ValueStack[ValueStack.Depth - 1]); CurrentSemanticValue = ValueStack[ValueStack.Depth - 2]; }
break;
case 10: // MethodDeclList_Opt -> /* empty */
{ CurrentSemanticValue = new MethodDeclListNode(LineNumber); }
break;
case 11: // MethodDecl -> PublicKeyword, Type, Identifier, RoundBracketOpen,
// ParamDeclList_Opt, RoundBracketClose, CurlyBracketOpen,
// VariableDeclList_Opt, StatementListEndingInReturn,
// CurlyBracketClose
{ ((StatementListNode)ValueStack[ValueStack.Depth - 2]).statementList.Reverse(); CurrentSemanticValue = new MethodDeclNode((TypeNode)ValueStack[ValueStack.Depth - 9], (IdentifierNode)ValueStack[ValueStack.Depth - 8], (ParamDeclListNode)ValueStack[ValueStack.Depth - 6], (VariableDeclListNode)ValueStack[ValueStack.Depth - 3], (StatementListNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 12: // VariableDeclList_Opt -> VariableDeclList_Opt, VariableDecl
{ ((VariableDeclListNode)ValueStack[ValueStack.Depth - 2]).AddVariableDecl((VariableDeclNode)ValueStack[ValueStack.Depth - 1]); CurrentSemanticValue = ValueStack[ValueStack.Depth - 2]; }
break;
case 13: // VariableDeclList_Opt -> /* empty */
{ CurrentSemanticValue = new VariableDeclListNode(LineNumber); }
break;
case 14: // VariableDecl -> Type, Identifier, SemiColon
{ CurrentSemanticValue = new VariableDeclNode((TypeNode)ValueStack[ValueStack.Depth - 3], (IdentifierNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 15: // StatementListEndingInReturn -> Statement, StatementListEndingInReturn
{ ((StatementListNode)ValueStack[ValueStack.Depth - 1]).AddStatement((StatementNode)ValueStack[ValueStack.Depth - 2]); CurrentSemanticValue = ValueStack[ValueStack.Depth - 1]; }
break;
case 16: // StatementListEndingInReturn -> ReturnKeyword, Expr, SemiColon
{ CurrentSemanticValue = new StatementListNode(LineNumber); ((StatementListNode)CurrentSemanticValue).AddStatement(new ReturnStatementNode((ExpressionNode)ValueStack[ValueStack.Depth - 2], LineNumber)); }
break;
case 17: // ParamDeclList_Opt -> Type, Identifier, ParamDeclListRest_Opt
{ ((ParamDeclListNode)ValueStack[ValueStack.Depth - 1]).paramDeclList.Reverse(); ((ParamDeclListNode)ValueStack[ValueStack.Depth - 1]).AddParamDecl(new ParamDeclNode((TypeNode)ValueStack[ValueStack.Depth - 3], (IdentifierNode)ValueStack[ValueStack.Depth - 2], LineNumber)); ((ParamDeclListNode)ValueStack[ValueStack.Depth - 1]).paramDeclList.Reverse(); CurrentSemanticValue = ValueStack[ValueStack.Depth - 1]; }
break;
case 19: // ParamDeclListRest_Opt -> ParamDeclListRest_Opt, Comma, Type, Identifier
{ ((ParamDeclListNode)ValueStack[ValueStack.Depth - 4]).AddParamDecl(new ParamDeclNode((TypeNode)ValueStack[ValueStack.Depth - 2], (IdentifierNode)ValueStack[ValueStack.Depth - 1], LineNumber)); CurrentSemanticValue = ValueStack[ValueStack.Depth - 4]; }
break;
case 20: // ParamDeclListRest_Opt -> /* empty */
{ CurrentSemanticValue = new ParamDeclListNode(LineNumber); }
break;
case 21: // Type -> IntKeyword, SquareBracketOpen, SquareBracketClose
{ CurrentSemanticValue = new IntegerArrayTypeNode(LineNumber); }
break;
case 22: // Type -> IntKeyword
{ CurrentSemanticValue = new IntegerTypeNode(LineNumber); }
break;
case 23: // Type -> BooleanKeyword
{ CurrentSemanticValue = new BooleanTypeNode(LineNumber); }
break;
case 24: // Type -> Identifier
{ CurrentSemanticValue = new IdentifierTypeNode(((IdentifierNode)ValueStack[ValueStack.Depth - 1]).name, LineNumber); }
break;
case 25: // Statement -> CurlyBracketOpen, StatementList_Opt, CurlyBracketClose
{ CurrentSemanticValue = new StatementBlockNode((StatementListNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 26: // Statement -> IfKeyword, RoundBracketOpen, Expr, RoundBracketClose, Statement,
// ElseKeyword, Statement
{ CurrentSemanticValue = new IfStatementNode((ExpressionNode)ValueStack[ValueStack.Depth - 5], (StatementNode)ValueStack[ValueStack.Depth - 3], (StatementNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 27: // Statement -> WhileKeyword, RoundBracketOpen, Expr, RoundBracketClose, Statement
{ CurrentSemanticValue = new WhileStatementNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], (StatementNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 28: // Statement -> SystemOutPrintLnKeyword, RoundBracketOpen, Expr, RoundBracketClose,
// SemiColon
{ CurrentSemanticValue = new SystemOutPrintLnStatementNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], LineNumber); }
break;
case 29: // Statement -> Identifier, EqualsOperator, Expr, SemiColon
{ CurrentSemanticValue = new AssignmentStatementNode((IdentifierNode)ValueStack[ValueStack.Depth - 4], (ExpressionNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 30: // Statement -> Identifier, Dot, Identifier, EqualsOperator, Expr, SemiColon
{ CurrentSemanticValue = new FieldAssignmentStatementNode((IdentifierNode)ValueStack[ValueStack.Depth - 6], (IdentifierNode)ValueStack[ValueStack.Depth - 4], (ExpressionNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 31: // Statement -> Identifier, SquareBracketOpen, Expr, SquareBracketClose,
// EqualsOperator, Expr, SemiColon
{ CurrentSemanticValue = new ArrayAssignmentStatementNode((IdentifierNode)ValueStack[ValueStack.Depth - 7], (ExpressionNode)ValueStack[ValueStack.Depth - 5], (ExpressionNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 32: // Statement -> error, SemiColon
{ CurrentSemanticValue = new StatementBlockNode(new StatementListNode(LineNumber), LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 33: // Statement -> error, CurlyBracketClose
{ CurrentSemanticValue = new StatementBlockNode(new StatementListNode(LineNumber), LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 34: // StatementList_Opt -> StatementList_Opt, Statement
{ ((StatementListNode)ValueStack[ValueStack.Depth - 2]).AddStatement((StatementNode)ValueStack[ValueStack.Depth - 1]); CurrentSemanticValue = ValueStack[ValueStack.Depth - 2]; }
break;
case 35: // StatementList_Opt -> /* empty */
{ CurrentSemanticValue = new StatementListNode(LineNumber); }
break;
case 36: // Expr -> RoundBracketOpen, Expr, RoundBracketClose
{ CurrentSemanticValue = ValueStack[ValueStack.Depth - 2]; }
break;
case 37: // Expr -> NotOperator, Expr
{ CurrentSemanticValue = new NotExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 38: // Expr -> NewKeyword, IntKeyword, SquareBracketOpen, Expr, SquareBracketClose
{ CurrentSemanticValue = new NewIntegerArrayExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 39: // Expr -> NewKeyword, Identifier, RoundBracketOpen, RoundBracketClose
{ CurrentSemanticValue = new NewObjectExpressionNode((IdentifierNode)ValueStack[ValueStack.Depth - 3], LineNumber); }
break;
case 40: // Expr -> Expr, AndAndOperator, Expr
{ CurrentSemanticValue = new AndExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], (ExpressionNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 41: // Expr -> Expr, LessThanOperator, Expr
{ CurrentSemanticValue = new LessThanExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], (ExpressionNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 42: // Expr -> Expr, AddOperator, Expr
{ CurrentSemanticValue = new AddExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], (ExpressionNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 43: // Expr -> Expr, SubtractOperator, Expr
{ CurrentSemanticValue = new SubtractExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], (ExpressionNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 44: // Expr -> Expr, MultiplyOperator, Expr
{ CurrentSemanticValue = new MultiplyExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], (ExpressionNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 45: // Expr -> Expr, SquareBracketOpen, Expr, SquareBracketClose
{ CurrentSemanticValue = new ArrayLookupExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 4], (ExpressionNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 46: // Expr -> Expr, Dot, LengthKeyword
{ CurrentSemanticValue = new LengthExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], LineNumber); }
break;
case 47: // Expr -> Expr, Dot, Identifier
{ CurrentSemanticValue = new FieldAccessExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 3], (IdentifierNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 48: // Expr -> Expr, Dot, Identifier, RoundBracketOpen, ExprList_Opt,
// RoundBracketClose
{ CurrentSemanticValue = new MethodCallExpressionNode((ExpressionNode)ValueStack[ValueStack.Depth - 6], (IdentifierNode)ValueStack[ValueStack.Depth - 4], (ExpressionListNode)ValueStack[ValueStack.Depth - 2], LineNumber); }
break;
case 49: // Expr -> ThisKeyword
{ CurrentSemanticValue = new ThisExpressionNode(LineNumber); }
break;
case 50: // Expr -> Identifier
{ CurrentSemanticValue = new IdentifierExpressionNode((IdentifierNode)ValueStack[ValueStack.Depth - 1], LineNumber); }
break;
case 51: // Expr -> IntegerConstant
{ CurrentSemanticValue = ValueStack[ValueStack.Depth - 1]; }
break;
case 52: // Expr -> TrueKeyword
{ CurrentSemanticValue = ValueStack[ValueStack.Depth - 1]; }
break;
case 53: // Expr -> FalseKeyword
{ CurrentSemanticValue = ValueStack[ValueStack.Depth - 1]; }
break;
case 54: // Expr -> error, IntegerConstant
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 55: // Expr -> error, TrueKeyword
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 56: // Expr -> error, FalseKeyword
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 57: // Expr -> error, Identifier
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 58: // Expr -> error, ThisKeyword
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 59: // Expr -> error, SquareBracketClose
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 60: // Expr -> error, RoundBracketClose
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 61: // Expr -> error, LengthKeyword
{ CurrentSemanticValue = new InvalidExpressionNode(LineNumber); yyclearin(); Analysis.LogSyntaxError("Syntax error", LineNumber); }
break;
case 62: // ExprList_Opt -> Expr, ExprListRest_Opt
{ ((ExpressionListNode)ValueStack[ValueStack.Depth - 1]).expressionList.Reverse(); ((ExpressionListNode)ValueStack[ValueStack.Depth - 1]).AddExpression((ExpressionNode)ValueStack[ValueStack.Depth - 2]); ((ExpressionListNode)ValueStack[ValueStack.Depth - 1]).expressionList.Reverse(); CurrentSemanticValue = ValueStack[ValueStack.Depth - 1]; }
break;
case 63: // ExprList_Opt -> /* empty */
{ new ExpressionListNode(LineNumber); }
break;
case 64: // ExprListRest_Opt -> ExprListRest_Opt, Comma, Expr
{ ((ExpressionListNode)ValueStack[ValueStack.Depth - 3]).AddExpression((ExpressionNode)ValueStack[ValueStack.Depth - 1]); CurrentSemanticValue = ValueStack[ValueStack.Depth - 3]; }
break;
case 65: // ExprListRest_Opt -> /* empty */
{ CurrentSemanticValue = new ExpressionListNode(LineNumber); }
break;
}
}
private List <ExpressionNode> PrimaryExpression()
{
printDebug("Primary Expression");
if (Match(TokenType.NEW_KEYWORD))
{
ConsumeToken();
var left = InstanceExpression();
var right = PrimaryExpressionPrime();
var ret = new List <ExpressionNode>();
ret.Add(left);
ret.AddRange(right);
return(ret);
}
else if (MatchAny(this.literals))
{
var token = ConsumeToken();
var left = new LiteralExpressionNode(token) as ExpressionNode;
var right = PrimaryExpressionPrime();
var ret = new List <ExpressionNode>();
ret.Add(left);
ret.AddRange(right);
return(ret);
}
else if (Match(TokenType.ID))
{
var token = ConsumeToken();
var left = new IdentifierExpressionNode(token) as ExpressionNode;
var right = PrimaryExpressionPrime();
var ret = new List <ExpressionNode>();
if (right.Count > 0 &&
(
(right[0] is FunctionCallExpressionNode && ((FunctionCallExpressionNode)right[0]).identifier == null) ||
(right[0] is ArrayAccessExpressionNode && ((ArrayAccessExpressionNode)right[0]).identifier == null) ||
(right[0] is PostAdditiveExpressionNode && ((PostAdditiveExpressionNode)right[0]).indentifier == null)
)
)
{
if (right[0] is FunctionCallExpressionNode)
{
((FunctionCallExpressionNode)right[0]).identifier = left;
}
else if (right[0] is ArrayAccessExpressionNode)
{
((ArrayAccessExpressionNode)right[0]).identifier = left;
}
else
{
((PostAdditiveExpressionNode)right[0]).indentifier = left;
}
}
else
{
ret.Add(left);
}
ret.AddRange(right);
return(ret);
}
else if (Match(TokenType.PAREN_OPEN))
{
ConsumeToken();
var expr = Expression();
MatchExactly(TokenType.PAREN_CLOSE);
var right = PrimaryExpressionPrime();
//REVISAR EL PRIMARY EXPRESSION PRIME
if (right.Count > 0 && (right[0] is FunctionCallExpressionNode || right[0] is ArrayAccessExpressionNode || (right[0] is PostAdditiveExpressionNode)))
{
if (right[0] is FunctionCallExpressionNode)
{
((FunctionCallExpressionNode)right[0]).identifier = expr;
}
else if (right[0] is ArrayAccessExpressionNode)
{
((ArrayAccessExpressionNode)right[0]).identifier = expr;
}
else
{
((PostAdditiveExpressionNode)right[0]).indentifier = expr;
}
return(right);
}
else
{
var internal_expression = new ParenthesizedExpressionNode(expr);
var ret = new List <ExpressionNode>();
ret.Add(internal_expression);
ret.AddRange(right);
return(ret);
}
}
else if (Match(TokenType.THIS_KEYWORD))
{
var token = MatchExactly(TokenType.THIS_KEYWORD);
var left = new ReferenceAccessNode(token) as ExpressionNode;
var right = PrimaryExpressionPrime();
var ret = new List <ExpressionNode>();
ret.Add(left);
ret.AddRange(right);
return(ret);
}
else if (Match(TokenType.BASE_KEYWORD))
{
var token = MatchExactly(TokenType.BASE_KEYWORD);
var left = new ReferenceAccessNode(token) as ExpressionNode;
var right = PrimaryExpressionPrime();
var ret = new List <ExpressionNode>();
ret.Add(left);
ret.AddRange(right);
return(ret);
}
else if (MatchAny(this.buildInTypes))
{
var token = ConsumeToken();
var left = new BuiltInTypeExpressionNode(token) as ExpressionNode;
var right = PrimaryExpressionPrime();
var ret = new List <ExpressionNode>();
ret.Add(left);
ret.AddRange(right);
return(ret);
}
else
{
ThrowSyntaxException("new, literal, identifier, '(' or 'this' expected");
return(null);
}
}
public virtual void Visit(IdentifierExpressionNode node)
{
}
