public static Variable CreateTemp(Type type, Instruction defineInstr)
{
var var = new Variable
{
Name = "t" + (_tempVarId++),
SymType = SymbolType.ST_TEMP,
ValType = type,
DefineInstruction = defineInstr
};
return var;
}
private Variable ComputeTempVar(Expression exp, OpCode code, Variable[] sources)
{
Instruction inst;
if (_indexedInsts.TryGetValue(exp, out inst))
return inst.Destinations[0];
inst = new Instruction(code);
_indexedInsts.Add(exp, inst);
_insts.Add(inst);
foreach (var s in sources)
inst.Sources.Add(s);
var d = Variable.CreateTemp(exp.Type, inst);
inst.Destinations.Add(d);
return d;
}
public static Variable CreateLocal(string name, Type type, Instruction defineInstr)
{
var var = new Variable
{
Name = name,
SymType = SymbolType.ST_LOCAL,
ValType = type,
DefineInstruction = defineInstr
};
return var;
}
public static Variable CreateConstant(Type type, object value)
{
var var = new Variable
{
Name = "c" + (_constVarId++),
SymType = SymbolType.ST_CONSTANT,
ValType = type,
ConstantValue = value
};
return var;
}
public static Variable CreateParam(string name, Type type)
{
var var = new Variable
{
Name = name,
SymType = SymbolType.ST_PARAMETER,
ValType = type
};
return var;
}
private Variable VisitMemberBinding(Variable host, MemberBinding node)
{
switch (node.BindingType)
{
case MemberBindingType.Assignment:
return VisitMemberAssignment(host, (MemberAssignment)node);
case MemberBindingType.MemberBinding:
return VisitMemberMemberBinding(host, (MemberMemberBinding)node);
case MemberBindingType.ListBinding:
return VisitMemberListBinding(host, (MemberListBinding)node);
default:
throw new ArgumentException("Error.UnhandledBindingType(node.BindingType);");
}
//throw Error.UnhandledBindingType(node.BindingType);
//throw new System.ArgumentException("Error.UnhandledBindingType(node.BindingType);");
}
private Variable VisitMemberMemberBinding(Variable host, MemberMemberBinding binding)
{
throw new NotSupportedException();
//this.Out(binding.Member.Name);
//this.Out(" = {");
//int num = 0;
//int count = binding.Bindings.Count;
//while (num < count)
//{
// if (num > 0)
// {
// this.Out(", ");
// }
// this.VisitMemberBinding(binding.Bindings[num]);
// num++;
//}
//this.Out("}");
}
private Variable VisitMemberAssignment(Variable host, MemberAssignment assignment)
{
var inst = CreateNonIndexedInstruction(OpCode.MemberWrite);
var val = Visit(assignment.Expression);
inst.Destinations.Add(host);
inst.Destinations.Add(Variable.CreateConstant(typeof(string), assignment.Member.Name));
inst.Sources.Add(val);
return val;
}
