public void Visit(MainFuncNode n)
{
n.Table = GlobalSymbolTable.FunctionSymbolTable;
var tableEntry = new FunctionSymbolTableEntry();
tableEntry.Name = "main";
foreach (var child in n.GetChildren())
{
child.SymTable = tableEntry;
child.Accept(this);
}
var localScope = n.GetChildren().First().GetChildren().SelectMany(x => x.GetChildren()).ToList();
for (int i = 0; i < localScope.Count; i += 3)
{
var paramType = localScope[i + 0].Token;
var paramName = localScope[i + 1].Token.Lexeme;
var arrayDims = NodeUtils.ExtractArrayDimListNode(localScope.GetCast <ArrayDimListNode>(i + 2));
if (!CheckTypeExists(paramType.Lexeme))
{
_errorStream.WriteLine($"Use of undeclared class, \"{paramType.Lexeme}\"({paramType.StartLine}:{paramType.StartColumn})");
Console.WriteLine($"Error: Use of undeclared class, \"{paramType.Lexeme}\"({paramType.StartLine}:{paramType.StartColumn})");
}
var entry = new FunctionSymbolTableEntryLocalScope()
{
Type = paramType,
Name = paramName,
ArrayDims = arrayDims,
};
tableEntry.AddLocalScopeEntry(entry);
}
n.Table.AddEntry(tableEntry);
n.SymTable = tableEntry;
}
public void Visit(FuncDefNode n)
{
var children = n.GetChildren();
var tableEntry = new FunctionSymbolTableEntry();
List <ASTNodeBase> funcParamList;
List <ASTNodeBase> localScope;
bool hasScopeSpec = children[1] is IdentifierNode;
if (hasScopeSpec)
{
tableEntry.ScopeSpec = children[0].Token.Lexeme;
tableEntry.Name = children[1].Token.Lexeme;
funcParamList = children[2].GetChildren();
tableEntry.ReturnType = children[3].Token;
localScope = children.GetCast <FuncBodyNode>(4).GetChildren().First().GetChildren().SelectMany(x => x.GetChildren()).ToList();
}
else
{
tableEntry.Name = children[0].Token.Lexeme;
funcParamList = children[1].GetChildren();
tableEntry.ReturnType = children[2].Token;
localScope = children.GetCast <FuncBodyNode>(3).GetChildren().First().GetChildren().SelectMany(x => x.GetChildren()).ToList();
}
for (int i = 0; i < funcParamList.Count; i += 3)
{
var paramType = funcParamList[i + 0].Token;
var paramName = funcParamList[i + 1].Token.Lexeme;
var arrayDims = NodeUtils.ExtractArrayDimListNode(funcParamList.GetCast <ArrayDimListNode>(i + 2));
var entry = new FunctionSymbolTableEntryParam()
{
TypeToken = paramType,
Name = paramName,
ArrayDims = arrayDims,
};
tableEntry.AddParamEntry(entry);
}
for (int i = 0; i < localScope.Count; i += 3)
{
var paramType = localScope[i + 0].Token;
var paramName = localScope[i + 1].Token.Lexeme;
var arrayDims = NodeUtils.ExtractArrayDimListNode(localScope.GetCast <ArrayDimListNode>(i + 2));
if (!CheckTypeExists(paramType.Lexeme))
{
_errorStream.WriteLine($"Use of undeclared class, \"{paramType.Lexeme}\"({paramType.StartLine}:{paramType.StartColumn})");
Console.WriteLine($"Error: Use of undeclared class, \"{paramType.Lexeme}\"({paramType.StartLine}:{paramType.StartColumn})");
}
var entry = new FunctionSymbolTableEntryLocalScope()
{
Type = paramType,
Name = paramName,
ArrayDims = arrayDims,
};
tableEntry.AddLocalScopeEntry(entry);
}
n.Table = tableEntry;
GlobalSymbolTable.FunctionSymbolTable.AddEntry(tableEntry);
}