private Expr GenerateParameter(string name, CType CType)
{
GetSymbolLoader().GetPredefindType(PredefinedType.PT_STRING); // force an ensure state
ExprConstant nameString = GetExprFactory().CreateStringConstant(name);
ExprTypeOf pTypeOf = CreateTypeOf(CType);
return(GenerateCall(PREDEFMETH.PM_EXPRESSION_PARAMETER, pTypeOf, nameString));
}
private ExprTypeOf CreateTypeOf(ExprClass pSourceType)
{
ExprTypeOf rval = new ExprTypeOf(GetTypes().GetReqPredefAgg(PredefinedType.PT_TYPE).getThisType());
rval.Flags = EXPRFLAG.EXF_CANTBENULL;
rval.SourceType = pSourceType;
return(rval);
}
private ExprTypeOf CreateTypeOf(ExprTypeOrNamespace pSourceType)
{
ExprTypeOf rval = new ExprTypeOf();
rval.Kind = ExpressionKind.EK_TYPEOF;
rval.Type = GetTypes().GetReqPredefAgg(PredefinedType.PT_TYPE).getThisType();
rval.Flags = EXPRFLAG.EXF_CANTBENULL;
rval.SourceType = pSourceType;
Debug.Assert(rval != null);
return(rval);
}
private Expr GenerateConstant(Expr expr)
{
EXPRFLAG flags = 0;
AggregateType pObject = GetSymbolLoader().GetPredefindType(PredefinedType.PT_OBJECT);
if (expr.Type is NullType)
{
ExprTypeOf pTypeOf = CreateTypeOf(pObject);
return(GenerateCall(PREDEFMETH.PM_EXPRESSION_CONSTANT_OBJECT_TYPE, expr, pTypeOf));
}
AggregateType stringType = GetSymbolLoader().GetPredefindType(PredefinedType.PT_STRING);
if (expr.Type != stringType)
{
flags = EXPRFLAG.EXF_BOX;
}
ExprCast cast = GetExprFactory().CreateCast(flags, pObject, expr);
ExprTypeOf pTypeOf2 = CreateTypeOf(expr.Type);
return(GenerateCall(PREDEFMETH.PM_EXPRESSION_CONSTANT_OBJECT_TYPE, cast, pTypeOf2));
}
protected override Expr VisitTYPEOF(ExprTypeOf expr)
{
Debug.Assert(expr != null);
return(GenerateConstant(expr));
}
protected virtual Expr VisitTYPEOF(ExprTypeOf pExpr)
{
return(VisitEXPR(pExpr));
}