|
static private BuildCall ( |
||
| metaBuilder | ||
| methodName | string | |
| args | ||
| defaultFallback | bool | |
| callClrMethods | bool | |
| return | bool | |
internal static DynamicMetaObject FallbackInvokeMember(IInteropBinder /*!*/ binder, string /*!*/ methodName, CallInfo /*!*/ callInfo,
DynamicMetaObject /*!*/ target, DynamicMetaObject /*!*/[] /*!*/ args, DynamicMetaObject errorSuggestion, InvokeMember alternateBinder)
{
var metaBuilder = new MetaObjectBuilder(binder, target, args);
var callArgs = new CallArguments(binder.Context, target, args, callInfo);
//
// If we are called with no errorSuggestion we attempt to bind the alternate name since the current binding failed
// (unless we successfully bind to a COM object method or Ruby/CLR method defined on the target meta-object).
// If we already have an errorSuggestion we use it as it represents a valid binding and no alternate name lookups are thus necessary.
//
// For example, DynamicObject InvokeMember calls our FallbackInvokeMember 4 times:
//
// 1) binder.fallback(..., errorSuggestion: null)
// -> DynamicObject.BindInvokeMember(altBinder)
// 2) altBinder.fallback(..., errorSuggestion: null)
// -> [[ error ]]
//
// 3) altBinder.fallback(..., errorSuggestion: [[
// TryInvokeMember(altName, out result)
// ? result
// : TryGetMember(altName, out result)
// ? altBinder.FallbackInvoke(result)
// : [[ error ]]
// ]])
// -> errorSuggestion
//
// 4) binder.fallback(..., errorSuggestion: [[
// TryInvokeMember(name, out result)
// ? result
// : TryGetMember(name, out result)
// ? binder.FallbackInvoke(result)
// TryInvokeMember(altName, out result)
// ? result
// : TryGetMember(altName, out result)
// ? altBinder.FallbackInvoke(result)
// : [[ error ]]
//
// ]])
// -> errorSuggestion
//
bool tryAlternateBinding = alternateBinder != null && errorSuggestion == null;
if (!RubyCallAction.BuildCall(metaBuilder, methodName, callArgs, errorSuggestion == null && !tryAlternateBinding, true))
{
Debug.Assert(errorSuggestion != null || tryAlternateBinding);
if (tryAlternateBinding)
{
metaBuilder.SetMetaResult(target.BindInvokeMember(alternateBinder, args), true);
}
else
{
// method wasn't found so we didn't do any operation with arguments that would require restrictions converted to conditions:
metaBuilder.SetMetaResult(errorSuggestion, false);
}
}
return(metaBuilder.CreateMetaObject((DynamicMetaObjectBinder)binder));
}
internal static DynamicMetaObject FallbackInvokeMember(IInteropBinder /*!*/ binder, string /*!*/ methodName, CallInfo /*!*/ callInfo,
DynamicMetaObject /*!*/ target, DynamicMetaObject /*!*/[] /*!*/ args, DynamicMetaObject errorSuggestion)
{
var metaBuilder = new MetaObjectBuilder(binder, target, args);
var callArgs = new CallArguments(binder.Context, target, args, callInfo);
if (!RubyCallAction.BuildCall(metaBuilder, methodName, callArgs, errorSuggestion == null, true))
{
Debug.Assert(errorSuggestion != null);
// method wasn't found so we didn't do any operation with arguments that would require restrictions converted to conditions:
metaBuilder.SetMetaResult(errorSuggestion, false);
}
return(metaBuilder.CreateMetaObject((DynamicMetaObjectBinder)binder));
}
public static DynamicMetaObject /*!*/ Bind(DynamicMetaObject /*!*/ context, GetIndexBinder /*!*/ binder,
DynamicMetaObject /*!*/ target, DynamicMetaObject /*!*/[] /*!*/ indexes,
Func <DynamicMetaObject, DynamicMetaObject[], DynamicMetaObject> /*!*/ fallback)
{
Debug.Assert(fallback != null);
var callArgs = new CallArguments(context, target, indexes, RubyCallSignature.Interop(indexes.Length));
var metaBuilder = new MetaObjectBuilder(target, indexes);
if (!RubyCallAction.BuildCall(metaBuilder, "[]", callArgs, false, false))
{
metaBuilder.SetMetaResult(fallback(target, indexes), false);
}
return(metaBuilder.CreateMetaObject(binder));
}
public static DynamicMetaObject /*!*/ Bind(DynamicMetaObject /*!*/ context, SetMemberBinder /*!*/ binder, DynamicMetaObject /*!*/ target,
DynamicMetaObject /*!*/ value, Func <DynamicMetaObject, DynamicMetaObject, DynamicMetaObject> /*!*/ fallback)
{
Debug.Assert(fallback != null);
var args = new[] { value };
var callArgs = new CallArguments(context, target, args, RubyCallSignature.Interop(1));
var metaBuilder = new MetaObjectBuilder(target, args);
if (!RubyCallAction.BuildCall(metaBuilder, binder.Name + "=", callArgs, false, false))
{
metaBuilder.SetMetaResult(fallback(target, value), false);
}
return(metaBuilder.CreateMetaObject(binder));
}
public static DynamicMetaObject /*!*/ Bind(DynamicMetaObject /*!*/ context, string /*!*/ methodName, CallInfo /*!*/ callInfo,
DynamicMetaObjectBinder /*!*/ binder, DynamicMetaObject /*!*/ target, DynamicMetaObject /*!*/[] /*!*/ args,
Func <DynamicMetaObject, DynamicMetaObject[], DynamicMetaObject> /*!*/ fallback)
{
Debug.Assert(fallback != null);
var callArgs = new CallArguments(context, target, args, RubyCallSignature.Interop(callInfo.ArgumentCount));
var metaBuilder = new MetaObjectBuilder(target, args);
if (!RubyCallAction.BuildCall(metaBuilder, methodName, callArgs, false, false))
{
// TODO: error suggestion?
metaBuilder.SetMetaResult(fallback(target, args), false);
}
return(metaBuilder.CreateMetaObject(binder));
}
public static DynamicMetaObject /*!*/ Bind(DynamicMetaObject /*!*/ context, SetIndexBinder /*!*/ binder,
DynamicMetaObject /*!*/ target, DynamicMetaObject /*!*/[] /*!*/ indexes, DynamicMetaObject /*!*/ value,
Func <DynamicMetaObject, DynamicMetaObject[], DynamicMetaObject, DynamicMetaObject> /*!*/ fallback)
{
Debug.Assert(fallback != null);
var args = ArrayUtils.Append(indexes, value);
var callArgs = new CallArguments(context, target, args,
new RubyCallSignature(indexes.Length, RubyCallFlags.IsInteropCall | RubyCallFlags.HasRhsArgument)
);
var metaBuilder = new MetaObjectBuilder(target, args);
if (!RubyCallAction.BuildCall(metaBuilder, "[]=", callArgs, false, false))
{
metaBuilder.SetMetaResult(fallback(target, indexes, value), false);
}
return(metaBuilder.CreateMetaObject(binder));
}
