public override void Visit(FunctionProtoAST functionProto)
{
var functionType = functionProto.GetFunctionType();
var identInfo = new IdentifierInfo
{
name = functionProto.Name,
position = _currentNodePosition,
typeAST = functionType,
scopeId = _currentScope.id,
isFunctionType = true
};
var identLocation = new IdentifierLocation
{
identifierName = identInfo.name,
scopeId = identInfo.scopeId
};
if (_symTable.IdentInfoDictionary.ContainsKey(identLocation))
{
throw new Exception(string.Format("Identifier {0} already declared in file {1} line {2}",
identInfo.name, _symTable.FilePath, _currentNodePosition));
}
_symTable.IdentInfoDictionary.Add(identLocation, identInfo);
if (_currentScope.id == 0)
{
GlobalIdentifiers.Add(functionProto.Name);
}
if (functionProto.Args == null)
{
return;
}
for (var i = 0; i < functionProto.Args.Count; i++)
{
var functionArgument = functionProto.Args[i];
identInfo = new IdentifierInfo
{
name = functionArgument.Name,
typeAST = functionArgument.Type,
position = _currentNodePosition,
scopeId = _scopeIdGen + 1,
isFunctionType = functionArgument.Type is FunctionTypeAST,
isFnParam = true,
paramIndex = i
};
AddIdentInfoToSymTable(identInfo);
}
}
public override void Visit(FunctionProtoAST functionProto)
{
var functionIden = _symTableManager.LookupFunctionInfo(_currentFileName, functionProto.Name, _currentScopeId, functionProto.GetFunctionType().ArgumentTypes);
if (functionIden.valueRef.Pointer == IntPtr.Zero)
{
var fnType = IRTypesConverter.GetFunctionType(functionProto.GetFunctionType());
functionIden.valueRef = LLVM.AddFunction(_module, functionProto.Name, fnType);
}
_currentFunction = functionIden.valueRef;
}