void EmitTypeCheck(CodeGenerator cg, BoundTypeRef tref)
{
var il = cg.Builder;
// STACK : object
if (tref.ResolvedType.IsErrorTypeOrNull())
{
// Template: filter(Operators.IsInstanceOf(<stack>, type))
tref.EmitLoadTypeInfo(cg, false);
cg.EmitCall(ILOpCode.Call, cg.CoreMethods.Operators.IsInstanceOf_Object_PhpTypeInfo)
.Expect(SpecialType.System_Boolean);
}
else
{
// Template: filter (<stack> is Interface)
il.EmitOpCode(ILOpCode.Isinst);
cg.EmitSymbolToken(tref.ResolvedType, null);
il.EmitNullConstant();
il.EmitOpCode(ILOpCode.Cgt_un); // value > null : bool
}
// STACK: i4 (boolean)
}
/// <summary>Template: new TargetTypeParam(PhpTypeInfo)</summary> public TypeSymbol EmitTargetTypeParam(BoundTypeRef tref) => tref != null?EmitWrapParam(_cg.CoreTypes.Dynamic_TargetTypeParam, tref.EmitLoadTypeInfo(_cg, true)) : null;