public override System.Linq.Expressions.Expression MakeExpression(BuilderContext ctx)
{
var tassign = target as IDynamicAssign;
if (tassign == null)
{
throw new InternalErrorException(target.GetType() + " does not support dynamic assignment");
}
var target_object = tassign.MakeAssignExpression(ctx, source);
//
// Some hacking is needed as DLR does not support void type and requires
// always have object convertible return type to support caching and chaining
//
// We do this by introducing an explicit block which returns RHS value when
// available or null
//
if (target_object.NodeType == System.Linq.Expressions.ExpressionType.Block)
{
return(target_object);
}
System.Linq.Expressions.UnaryExpression source_object;
if (ctx.HasSet(BuilderContext.Options.CheckedScope))
{
source_object = System.Linq.Expressions.Expression.ConvertChecked(source.MakeExpression(ctx), target_object.Type);
}
else
{
source_object = System.Linq.Expressions.Expression.Convert(source.MakeExpression(ctx), target_object.Type);
}
return(System.Linq.Expressions.Expression.Assign(target_object, source_object));
}
public override System.Linq.Expressions.Expression MakeExpression (BuilderContext ctx)
{
var tassign = target as IDynamicAssign;
if (tassign == null)
throw new InternalErrorException (target.GetType () + " does not support dynamic assignment");
var target_object = tassign.MakeAssignExpression (ctx, source);
//
// Some hacking is needed as DLR does not support void type and requires
// always have object convertible return type to support caching and chaining
//
// We do this by introducing an explicit block which returns RHS value when
// available or null
//
if (target_object.NodeType == System.Linq.Expressions.ExpressionType.Block)
return target_object;
System.Linq.Expressions.UnaryExpression source_object;
if (ctx.HasSet (BuilderContext.Options.CheckedScope)) {
source_object = System.Linq.Expressions.Expression.ConvertChecked (source.MakeExpression (ctx), target_object.Type);
} else {
source_object = System.Linq.Expressions.Expression.Convert (source.MakeExpression (ctx), target_object.Type);
}
return System.Linq.Expressions.Expression.Assign (target_object, source_object);
}
public override SLE.Expression MakeExpression(BuilderContext ctx)
{
return ctx.HasSet (BuilderContext.Options.CheckedScope) ?
SLE.Expression.ConvertChecked (child.MakeExpression (ctx), type.GetMetaInfo ()) :
SLE.Expression.Convert (child.MakeExpression (ctx), type.GetMetaInfo ());
}
public override SLE.Expression MakeExpression (BuilderContext ctx)
{
var le = left.MakeExpression (ctx);
var re = right.MakeExpression (ctx);
bool is_checked = ctx.HasSet (BuilderContext.Options.CheckedScope);
switch (oper) {
case Operator.Addition:
return is_checked ? SLE.Expression.AddChecked (le, re) : SLE.Expression.Add (le, re);
case Operator.BitwiseAnd:
return SLE.Expression.And (le, re);
case Operator.BitwiseOr:
return SLE.Expression.Or (le, re);
case Operator.Division:
return SLE.Expression.Divide (le, re);
case Operator.Equality:
return SLE.Expression.Equal (le, re);
case Operator.ExclusiveOr:
return SLE.Expression.ExclusiveOr (le, re);
case Operator.GreaterThan:
return SLE.Expression.GreaterThan (le, re);
case Operator.GreaterThanOrEqual:
return SLE.Expression.GreaterThanOrEqual (le, re);
case Operator.Inequality:
return SLE.Expression.NotEqual (le, re);
case Operator.LeftShift:
return SLE.Expression.LeftShift (le, re);
case Operator.LessThan:
return SLE.Expression.LessThan (le, re);
case Operator.LessThanOrEqual:
return SLE.Expression.LessThanOrEqual (le, re);
case Operator.LogicalAnd:
return SLE.Expression.AndAlso (le, re);
case Operator.LogicalOr:
return SLE.Expression.OrElse (le, re);
case Operator.Modulus:
return SLE.Expression.Modulo (le, re);
case Operator.Multiply:
return is_checked ? SLE.Expression.MultiplyChecked (le, re) : SLE.Expression.Multiply (le, re);
case Operator.RightShift:
return SLE.Expression.RightShift (le, re);
case Operator.Subtraction:
return is_checked ? SLE.Expression.SubtractChecked (le, re) : SLE.Expression.Subtract (le, re);
default:
throw new NotImplementedException (oper.ToString ());
}
}
