public static bool ImplicitConversionExists(ScriptingContext context,
TargetType source, TargetType target)
{
if (source.Equals (target))
return true;
if ((source is TargetFundamentalType) && (target is TargetFundamentalType))
return ImplicitFundamentalConversionExists (
context, (TargetFundamentalType) source,
(TargetFundamentalType) target);
if ((source is TargetFundamentalType) && (target is TargetObjectType) &&
(((TargetFundamentalType) source).FundamentalKind == FundamentalKind.String))
return true;
if ((source is TargetClassType) && (target is TargetClassType))
return ImplicitReferenceConversionExists (
context, (TargetClassType) source,
(TargetClassType) target);
return false;
}
public static bool ImplicitConversionExists (MdbEvaluationContext ctx,
TargetType source, TargetType target)
{
if (source.Equals (target))
return true;
if (source is TargetArrayType && target.Name == "System.Array")
return true;
if (ObjectUtil.FixTypeName (target.Name) == "System.Object")
return true;
if (source is TargetArrayType && target is TargetArrayType) {
TargetArrayType sa = (TargetArrayType) source;
TargetArrayType ta = (TargetArrayType) target;
return sa.ElementType.Equals (ta.ElementType);
}
if (source is TargetEnumType) {
TargetEnumType e = (TargetEnumType) source;
if (ImplicitConversionExists (ctx, e.Value.Type, target))
return true;
}
if (target is TargetEnumType) {
TargetEnumType e = (TargetEnumType) target;
if (ImplicitConversionExists (ctx, source, e.Value.Type))
return true;
}
if ((source is TargetFundamentalType) && (target is TargetFundamentalType))
return ImplicitFundamentalConversionExists (
(TargetFundamentalType) source,
(TargetFundamentalType) target);
if ((source is TargetClassType) && (target is TargetClassType))
return ImplicitReferenceConversionExists (
ctx, (TargetClassType) source,
(TargetClassType) target);
return false;
}