/// <summary>
/// This is the most generic method for getting a member's value.
/// It will attempt to resolve the member by name and the get its value by invoking the
/// callsite's delegate
/// </summary>
public T GetMember <T> (object o)
{
Stats.Increment(StatsCounter.GetMemberBinderInvoked);
TypeLogger.LogType(o);
// get accessor for value type T
var accessor = o as IDynamicAccessor <T>;
if (accessor != null)
{
return(accessor.GetMember(mName, ref mNameHint));
}
// fallback on object accessor and cast it to T
var untypedAccessor = o as IDynamicAccessorUntyped;
if (untypedAccessor != null)
{
// value can be null, undefined, or of type T
object value = untypedAccessor.GetMember(mName, ref mNameHint);
// convert value to T
if (value == null)
{
return(default(T));
}
else if (value is T)
{
return((T)value);
}
else if (Dynamic.IsUndefined(value))
{
return(Dynamic.GetUndefinedValue <T>());
}
else
{
return(PlayScript.Dynamic.ConvertValue <T>(value));
}
}
// resolve as dictionary (this is usually an expando)
var dict = o as IDictionary <string, object>;
if (dict != null)
{
Stats.Increment(StatsCounter.GetMemberBinder_Expando);
// special case this for expando objects
object value;
if (dict.TryGetValue(mName, out value))
{
// fast path empty cast just in case
if (value is T)
{
return((T)value);
}
else
{
return(PlayScript.Dynamic.ConvertValue <T>(value));
}
}
// key not found
return(Dynamic.GetUndefinedValue <T>());
}
if (PlayScript.Dynamic.IsNullOrUndefined(o))
{
return(Dynamic.GetUndefinedValue <T>());
}
// determine if this is a instance member or a static member
bool isStatic;
Type otype;
if (o is System.Type)
{
// static member
otype = (System.Type)o;
o = null;
isStatic = true;
}
else
{
// instance member
otype = o.GetType();
isStatic = false;
}
if (otype == mType)
{
// use cached resolve
if (mProperty != null)
{
Func <T> func;
if (o == mPreviousTarget)
{
func = (Func <T>)mPreviousFunc;
}
else
{
mPreviousFunc = func = ActionCreator.CreatePropertyGetAction <T>(o, mProperty);
mPreviousTarget = o;
}
return(func());
}
if (mField != null)
{
return(PlayScript.Dynamic.ConvertValue <T>(mField.GetValue(o)));
}
if (mMethod != null)
{
// construct method delegate
return(PlayScript.Dynamic.ConvertValue <T>(Delegate.CreateDelegate(mTargetType, o, mMethod)));
}
// resolve as dynamic class
var dc = o as IDynamicClass;
if (dc != null)
{
object result = dc.__GetDynamicValue(mName);
return(PlayScript.Dynamic.ConvertValue <T>(result));
}
if (mName == "constructor")
{
return(PlayScript.Dynamic.ConvertValue <T> (otype));
}
throw new System.InvalidOperationException("Unhandled member type in PSGetMemberBinder");
}
// resolve name
Stats.Increment(StatsCounter.GetMemberBinder_Resolve_Invoked);
Stats.Start(StatsCounter.GetMemberBinder_Resolve_Time);
// The constructor is a special synthetic property - we have to handle this for AS compatibility
if (mName == "constructor")
{
// setup binding to field
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = null;
mField = null;
mMethod = null;
mTargetType = typeof(Type);
Stats.Stop(StatsCounter.GetMemberBinder_Resolve_Time);
return(PlayScript.Dynamic.ConvertValue <T> (otype));
}
// resolve as property
// TODO: we allow access to non-public properties for simplicity,
// should cleanup to check access levels
var property = otype.GetProperty(mName, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
if (property != null)
{
// found property
var getter = property.GetGetMethod();
if (getter != null && getter.IsStatic == isStatic)
{
// setup binding to property
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = property;
mPropertyGetter = property.GetGetMethod();
mField = null;
mMethod = null;
mTargetType = property.PropertyType;
Stats.Stop(StatsCounter.GetMemberBinder_Resolve_Time);
return(PlayScript.Dynamic.ConvertValue <T>(mPropertyGetter.Invoke(o, null)));
}
}
// resolve as field
// TODO: we allow access to non-public fields for simplicity,
// should cleanup to check access levels
var field = otype.GetField(mName, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
if (field != null)
{
// found field
if (field.IsStatic == isStatic)
{
// setup binding to field
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = null;
mField = field;
mMethod = null;
mTargetType = field.FieldType;
Stats.Stop(StatsCounter.GetMemberBinder_Resolve_Time);
return(PlayScript.Dynamic.ConvertValue <T>(field.GetValue(o)));
}
}
// resolve as method
BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Public;
if (isStatic)
{
flags |= BindingFlags.Static;
}
else
{
flags |= BindingFlags.Instance;
}
var method = otype.GetMethod(mName, flags);
if (method != null)
{
// setup binding to method
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = null;
mField = null;
mMethod = method;
mTargetType = PlayScript.Dynamic.GetDelegateTypeForMethod(mMethod);
Stats.Stop(StatsCounter.GetMemberBinder_Resolve_Time);
return(PlayScript.Dynamic.ConvertValue <T>(Delegate.CreateDelegate(mTargetType, o, mMethod)));
}
if (o is IDynamicClass)
{
// dynamic class
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = null;
mField = null;
mMethod = null;
object result = ((IDynamicClass)o).__GetDynamicValue(mName);
Stats.Stop(StatsCounter.GetMemberBinder_Resolve_Time);
return(PlayScript.Dynamic.ConvertValue <T>(result));
}
Stats.Stop(StatsCounter.GetMemberBinder_Resolve_Time);
return(Dynamic.GetUndefinedValue <T>());
}
/// <summary>
/// This is the most generic method for getting a member's value.
/// It will attempt to resolve the member by name and the get its value by invoking the
/// callsite's delegate
/// </summary>
private static T GetMember <T> (CallSite site, object o)
{
#if BINDERS_RUNTIME_STATS
Stats.Increment(StatsCounter.GetMemberBinderInvoked);
#endif
if (o == null)
{
return(default(T));
}
var binder = (PSGetMemberBinder)site.Binder;
// resolve as dictionary
var dict = o as IDictionary <string, object>;
if (dict != null)
{
// special case this for expando objects
object value;
if (dict.TryGetValue(binder.name, out value))
{
return(PlayScript.Dynamic.ConvertValue <T>(value));
}
// fall through if key not found
}
// determine if this is a instance member or a static member
bool isStatic;
Type otype;
if (o is System.Type)
{
// static member
otype = (System.Type)o;
o = null;
isStatic = true;
}
else
{
// instance member
otype = o.GetType();
isStatic = false;
}
if (otype == binder.type)
{
// use cached resolve
if (binder.property != null)
{
Func <T> func;
if (o == binder.previousTarget)
{
func = (Func <T>)binder.previousFunc;
}
else
{
binder.previousFunc = func = ActionCreator.CreatePropertyGetAction <T>(o, binder.property);
binder.previousTarget = o;
}
return(func());
}
if (binder.field != null)
{
return(PlayScript.Dynamic.ConvertValue <T>(binder.field.GetValue(o)));
}
if (binder.method != null)
{
// construct method delegate
return(PlayScript.Dynamic.ConvertValue <T>(Delegate.CreateDelegate(PlayScript.Dynamic.GetDelegateTypeForMethod(binder.method), o, binder.method)));
}
// resolve as dynamic class
var dc = o as IDynamicClass;
if (dc != null)
{
object result = dc.__GetDynamicValue(binder.name);
return(PlayScript.Dynamic.ConvertValue <T>(result));
}
throw new System.InvalidOperationException("Unhandled member type in PSGetMemberBinder");
}
// resolve name
#if BINDERS_RUNTIME_STATS
Stats.Increment(StatsCounter.GetMemberBinder_Resolve_Invoked);
#endif
// resolve as property
var property = otype.GetProperty(binder.name);
if (property != null)
{
// found property
var getter = property.GetGetMethod();
if (getter != null && getter.IsPublic && getter.IsStatic == isStatic)
{
// setup binding to property
binder.type = otype;
binder.property = property;
binder.field = null;
binder.method = null;
return(PlayScript.Dynamic.ConvertValue <T>(property.GetValue(o, null)));
}
}
// resolve as field
var field = otype.GetField(binder.name);
if (field != null)
{
// found field
if (field.IsPublic && field.IsStatic == isStatic)
{
// setup binding to field
binder.type = otype;
binder.property = null;
binder.field = field;
binder.method = null;
return(PlayScript.Dynamic.ConvertValue <T>(field.GetValue(o)));
}
}
// resolve as method
BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Public;
if (isStatic)
{
flags |= BindingFlags.Static;
}
else
{
flags |= BindingFlags.Instance;
}
var method = otype.GetMethod(binder.name, flags);
if (method != null)
{
// setup binding to method
binder.type = otype;
binder.property = null;
binder.field = null;
binder.method = method;
// construct method delegate
return(PlayScript.Dynamic.ConvertValue <T>(Delegate.CreateDelegate(PlayScript.Dynamic.GetDelegateTypeForMethod(binder.method), o, binder.method)));
}
if (o is IDynamicClass)
{
// dynamic class
binder.type = otype;
binder.property = null;
binder.field = null;
binder.method = null;
object result = ((IDynamicClass)o).__GetDynamicValue(binder.name);
return(PlayScript.Dynamic.ConvertValue <T>(result));
}
// could not resolve name as property or field, and is not dynamic class or dictionary
// invoke callback
if (Binder.OnGetMemberError != null)
{
return(PlayScript.Dynamic.ConvertValue <T>(Binder.OnGetMemberError(o, binder.name, null)));
}
else
{
return(default(T));
}
}
/// <summary>
/// This is the most generic method for getting a member's value.
/// It will attempt to resolve the member by name and the get its value by invoking the
/// callsite's delegate
/// </summary>
public T GetMember <T> (object o)
{
Stats.Increment(StatsCounter.GetMemberBinderInvoked);
TypeLogger.LogType(o);
// resolve as dictionary (this is usually an expando)
var dict = o as IDictionary <string, object>;
if (dict != null)
{
Stats.Increment(StatsCounter.GetMemberBinder_Expando);
// special case this for expando objects
object value;
if (dict.TryGetValue(mName, out value))
{
// fast path empty cast just in case
if (value is T)
{
return((T)value);
}
else
{
return(PlayScript.Dynamic.ConvertValue <T>(value));
}
}
// key not found
return(default(T));
}
if (o == null)
{
return(default(T));
}
// determine if this is a instance member or a static member
bool isStatic;
Type otype;
if (o is System.Type)
{
// static member
otype = (System.Type)o;
o = null;
isStatic = true;
}
else
{
// instance member
otype = o.GetType();
isStatic = false;
}
if (otype == mType)
{
// use cached resolve
if (mProperty != null)
{
Func <T> func;
if (o == mPreviousTarget)
{
func = (Func <T>)mPreviousFunc;
}
else
{
mPreviousFunc = func = ActionCreator.CreatePropertyGetAction <T>(o, mProperty);
mPreviousTarget = o;
}
return(func());
}
if (mField != null)
{
return(PlayScript.Dynamic.ConvertValue <T>(mField.GetValue(o)));
}
if (mMethod != null)
{
// construct method delegate
return(PlayScript.Dynamic.ConvertValue <T>(Delegate.CreateDelegate(mTargetType, o, mMethod)));
}
// resolve as dynamic class
var dc = o as IDynamicClass;
if (dc != null)
{
object result = dc.__GetDynamicValue(mName);
return(PlayScript.Dynamic.ConvertValue <T>(result));
}
throw new System.InvalidOperationException("Unhandled member type in PSGetMemberBinder");
}
// resolve name
Stats.Increment(StatsCounter.GetMemberBinder_Resolve_Invoked);
// resolve as property
var property = otype.GetProperty(mName);
if (property != null)
{
// found property
var getter = property.GetGetMethod();
if (getter != null && getter.IsPublic && getter.IsStatic == isStatic)
{
// setup binding to property
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = property;
mPropertyGetter = property.GetGetMethod();
mField = null;
mMethod = null;
mTargetType = property.PropertyType;
return(PlayScript.Dynamic.ConvertValue <T>(mPropertyGetter.Invoke(o, null)));
}
}
// resolve as field
var field = otype.GetField(mName);
if (field != null)
{
// found field
if (field.IsPublic && field.IsStatic == isStatic)
{
// setup binding to field
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = null;
mField = field;
mMethod = null;
mTargetType = field.FieldType;
return(PlayScript.Dynamic.ConvertValue <T>(field.GetValue(o)));
}
}
// resolve as method
BindingFlags flags = BindingFlags.NonPublic | BindingFlags.Public;
if (isStatic)
{
flags |= BindingFlags.Static;
}
else
{
flags |= BindingFlags.Instance;
}
var method = otype.GetMethod(mName, flags);
if (method != null)
{
// setup binding to method
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = null;
mField = null;
mMethod = method;
mTargetType = PlayScript.Dynamic.GetDelegateTypeForMethod(mMethod);
// construct method delegate
return(PlayScript.Dynamic.ConvertValue <T>(Delegate.CreateDelegate(mTargetType, o, mMethod)));
}
if (o is IDynamicClass)
{
// dynamic class
mType = otype;
mPreviousFunc = null;
mPreviousTarget = null;
mProperty = null;
mField = null;
mMethod = null;
object result = ((IDynamicClass)o).__GetDynamicValue(mName);
return(PlayScript.Dynamic.ConvertValue <T>(result));
}
return(default(T));
}