void InitILGeneration(Type[] argTypes, string[] argNames, bool isStatic) {
this.methodEndLabel = ilGen.DefineLabel();
this.retLabel = ilGen.DefineLabel();
this.blockStack = new Stack();
this.whileStack = new Stack();
this.currentScope = new LocalScope();
this.freeLocals = new Dictionary<Tuple<Type, string>, Queue<LocalBuilder>>();
this.argList = new Dictionary<string, ArgBuilder>();
// this ptr is arg 0 for non static, assuming ref type (not value type)
if (!isStatic)
argList.Add("this", new ArgBuilder("this", 0, this.typeBuilder.BaseType));
for (int i = 0; i < argTypes.Length; i++) {
ArgBuilder arg = new ArgBuilder(argNames[i], argList.Count, argTypes[i]);
argList.Add(arg.Name, arg);
this.methodBuilder.DefineParameter(arg.Index, ParameterAttributes.None, arg.Name);
}
}
internal void ExitScope()
{
Debug.Assert(this.currentScope.parent != null);
this.currentScope.AddToFreeLocals(freeLocals);
this.currentScope = this.currentScope.parent;
}
public LocalScope(LocalScope parent) : this() {
this.parent = parent;
}
internal void EnterScope() {
LocalScope newScope = new LocalScope(this.currentScope);
this.currentScope = newScope;
}
internal MethodBuilder EndMethod() {
MarkLabel(methodEndLabel);
Ret();
MethodBuilder retVal = null;
retVal = methodBuilder;
methodBuilder = null;
ilGen = null;
freeLocals = null;
blockStack = null;
whileStack = null;
argList = null;
currentScope = null;
retLocal = null;
return retVal;
}
internal void ExitScope()
{
Debug.Assert(_currentScope.parent != null);
_currentScope.AddToFreeLocals(_freeLocals);
_currentScope = _currentScope.parent;
}
internal void EnterScope()
{
LocalScope newScope = new LocalScope(_currentScope);
_currentScope = newScope;
}
internal MethodBuilder EndMethod()
{
MarkLabel(_methodEndLabel);
Ret();
MethodBuilder retVal = null;
retVal = _methodBuilder;
_methodBuilder = null;
_ilGen = null;
_freeLocals = null;
_blockStack = null;
_whileStack = null;
_argList = null;
_currentScope = null;
retLocal = null;
return retVal;
}