public override void GenerateConversion(IProxyModuleCoderAccess proxyModule, ILGenerator gen)
{
var toTypeCtor = _toType.GetConstructor(new[] { _coreToType });
if (!_fromTypeNullable)
{
_coreBinding.GenerateConversion(proxyModule, gen);
gen.Emit(OpCodes.Newobj, toTypeCtor);
}
else
{
var fromLocal = gen.DeclareLocal(_fromType);
var toLocal = gen.DeclareLocal(_toType);
var hasValueLabel = gen.DefineLabel();
var doneLabel = gen.DefineLabel();
gen.Emit(OpCodes.Stloc, fromLocal);
gen.Emit(OpCodes.Ldloca, fromLocal);
gen.Emit(OpCodes.Call, _fromType.GetMethod("get_HasValue"));
gen.Emit(OpCodes.Brtrue, hasValueLabel);
gen.Emit(OpCodes.Ldloca, toLocal);
gen.Emit(OpCodes.Initobj, _toType);
gen.Emit(OpCodes.Ldloc, toLocal);
gen.Emit(OpCodes.Br, doneLabel);
// :HasValue
gen.MarkLabel(hasValueLabel);
gen.Emit(OpCodes.Ldloca, fromLocal);
gen.Emit(OpCodes.Call, _fromType.GetMethod("GetValueOrDefault", Type.EmptyTypes));
_coreBinding.GenerateConversion(proxyModule, gen);
gen.Emit(OpCodes.Newobj, toTypeCtor);
// :Done
gen.MarkLabel(doneLabel);
}
}
public override void GenerateCall(IProxyModuleCoderAccess proxyModule, ILGenerator gen)
{
var pars = _adaptee.GetParameters();
var targetPars = _target.GetParameters();
var tokens = new object[pars.Length];
// Generate in conversions
for (ushort i = 0; i < pars.Length; ++i)
{
// ReSharper disable once AccessToModifiedClosure
tokens[i] = _paramBindings[i].GenerateInConversion(() => gen.EmitBestLdArg((ushort)(i + 1)), proxyModule, gen);
}
gen.Emit(OpCodes.Callvirt, _target);
// Generate out conversions
for (ushort i = 0; i < pars.Length; ++i)
{
// ReSharper disable once AccessToModifiedClosure
_paramBindings[i].GenerateOutConversion(tokens[i], () => gen.EmitBestLdArg((ushort)(i + 1)), proxyModule, gen);
}
_retValBinding.GenerateConversion(proxyModule, gen);
}
public override void GenerateOutConversion(object token, Action load, IProxyModuleCoderAccess proxyModule, ILGenerator gen)
{
var local = (LocalBuilder)token;
load();
gen.Emit(OpCodes.Ldloc, local);
_valueBinding.GenerateConversion(proxyModule, gen);
gen.EmitStoreToRef(_fromType);
}
public override object GenerateInConversion(Action load, IProxyModuleCoderAccess proxyModule, ILGenerator gen)
{
load();
_valueBinding.GenerateConversion(proxyModule, gen);
return(null);
}