private static int GetArgNumber(AST.VariableDeclNode arg, AST.FunctionDefinitionNode funDef)
{
for (int i = 0; i < funDef.Parameters.Count(); i++)
{
if (Object.ReferenceEquals(arg, funDef.Parameters.ElementAt(i)))
{
return(i);
}
}
return(-1);
}
/// <summary>
/// Returns fully prepared backend Function object for the given program function.
/// </summary>
/// <param name="funDef">Function definition.</param>
/// <param name="expGraph">ControlFlowGraph of this function body.</param>
public static B.Function BuildBackendFunction(AST.FunctionDefinitionNode funDef, IEnumerable <Vertex> expGraph)
{
B.Function f = funDef.BackendFunction; // get previously created backend function object
// FIXME: this code is no longer needed -> args will be constructed inside function object
for (int i = 0; i < f.ArgsCount; i++)
{
// for each argument set temporary node used for this argument inside created backend tree
//f.ArgsLocations[i] = new Brep.TemporaryNode();
}
f.Body = new List <Brep.Node> {
(new DFSBuilder(funDef, expGraph.Last())).Build(expGraph.First())
};
f.Result = null; // this is set by DFSBuilder
return(f);
}
// ----- Methods -----
#region implemented abstract members of Node
// Program -> (Function|Record)* Eof
public override void BuildNode <TSymbol>(IParseTree <TSymbol> parseTree)
{
var childs = ASTBuilder.ChildrenArray(parseTree);
for (int i = 0; i < childs.Length - 1; i++) // skip last child - it is EOF
{
switch (ASTBuilder.GetName(childs [i].Symbol))
{
case "RecordTypeDeclaration":
var recordNode = new RecordTypeDeclarationNode();
recordNode.BuildNode(childs [i]);
records.AddLast(recordNode);
break;
default:
var funNode = new FunctionDefinitionNode();
funNode.BuildNode(childs [i]);
functions.AddLast(funNode);
break;
}
}
}
public RecursiveBuilder(AST.FunctionDefinitionNode funDef)
{
this.funDef = funDef;
}
public static Brep.Node BuildNode(ExpressionNode expNode, AST.FunctionDefinitionNode funDef)
{
return((new RecursiveBuilder(funDef)).Build(expNode as dynamic));
}
public DFSBuilder(AST.FunctionDefinitionNode funDef, Vertex resNode)
{
this.funDef = funDef;
this.resNode = resNode;
}
public FunctionCallNode(string name, IReadOnlyList <ExpressionNode> arguments, FunctionDefinitionNode definition)
{
this.Name = name;
this.Arguments = arguments;
this.Definition = definition;
}