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));
}
internal MetaObjectBuilder(IInteropBinder /*!*/ binder, DynamicMetaObject target, params DynamicMetaObject /*!*/[] /*!*/ arguments)
: this(binder.Context, target, arguments)
{
}
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);
}
internal MetaObjectBuilder(IInteropBinder/*!*/ binder, DynamicMetaObject target, params DynamicMetaObject/*!*/[]/*!*/ arguments)
: this(binder.Context, target, arguments) {
}
public DynamicMetaObject CreateMetaObject(IInteropBinder binder)
{
return(new DynamicMetaObject(_metaResult, _restrictions));
}
public DynamicMetaObject CreateMetaObject(IInteropBinder binder)
{
return new DynamicMetaObject(_metaResult, _restrictions);
}
