/// <summary>
/// Attempts to resolve current node and sets either of the following fields:
/// _Field, _Method, _Property
///
/// The following fields are also set:
/// _Type, _Static
/// </summary>
private void resolveSelf(Context ctx)
{
Action check = () =>
{
if (Expression == null && !_IsStatic)
error(CompilerMessages.DynamicMemberFromStaticContext, _Type, MemberName);
if (_Method == null && TypeHints.Count > 0)
error(CompilerMessages.TypeArgumentsForNonMethod, _Type, MemberName);
};
_Type = StaticType != null
? ctx.ResolveType(StaticType)
: Expression.Resolve(ctx);
// special case: array length
if (_Type.IsArray && MemberName == "Length")
{
check();
return;
}
// check for field
try
{
_Field = ctx.ResolveField(_Type, MemberName);
_IsStatic = _Field.IsStatic;
check();
return;
}
catch (KeyNotFoundException) { }
// check for property
try
{
_Property = ctx.ResolveProperty(_Type, MemberName);
if(!_Property.CanGet)
error(CompilerMessages.PropertyNoGetter, _Type, MemberName);
_IsStatic = _Property.IsStatic;
check();
return;
}
catch (KeyNotFoundException) { }
// check for event: events are only allowed at the left side of += and -=
try
{
ctx.ResolveEvent(_Type, MemberName);
error(CompilerMessages.EventAsExpr);
}
catch (KeyNotFoundException) { }
// find method
var argTypes = TypeHints.Select(t => t.FullSignature == "_" ? null : ctx.ResolveType(t)).ToArray();
var methods = ctx.ResolveMethodGroup(_Type, MemberName).Where(m => checkMethodArgs(argTypes, m)).ToArray();
if (methods.Length == 0)
error(argTypes.Length == 0 ? CompilerMessages.TypeIdentifierNotFound : CompilerMessages.TypeMethodNotFound, _Type.Name, MemberName);
if (methods.Length > 1)
error(CompilerMessages.TypeMethodAmbiguous, _Type.Name, MemberName);
_Method = methods[0];
if (_Method.ArgumentTypes.Length > 16)
error(CompilerMessages.CallableTooManyArguments);
_IsStatic = _Method.IsStatic;
check();
}
private void resolve(Context ctx)
{
Action check = () =>
{
if (Expression == null && !m_IsStatic)
Error(CompilerMessages.DynamicMemberFromStaticContext, MemberName);
if(m_Method == null && TypeHints.Count > 0)
Error(CompilerMessages.TypeArgumentsForNonMethod, m_Type, MemberName);
m_IsResolved = true;
};
m_Type = StaticType != null
? ctx.ResolveType(StaticType)
: Expression.GetExpressionType(ctx);
// special case: array length
if (m_Type.IsArray && MemberName == "Length")
{
check();
return;
}
// check for field
try
{
m_Field = ctx.ResolveField(m_Type, MemberName);
m_IsStatic = m_Field.IsStatic;
check();
return;
}
catch (KeyNotFoundException) { }
// check for property
try
{
m_Property = ctx.ResolveProperty(m_Type, MemberName);
if(!m_Property.CanGet)
Error(CompilerMessages.PropertyNoGetter, m_Type, MemberName);
m_IsStatic = m_Property.IsStatic;
check();
return;
}
catch (KeyNotFoundException)
{ }
var argTypes = TypeHints.Select(t => t.FullSignature == "_" ? null : ctx.ResolveType(t)).ToArray();
var methods = ctx.ResolveMethodGroup(m_Type, MemberName).Where(m => checkMethodArgs(ctx, argTypes, m)).ToArray();
if (methods.Length == 0)
Error(argTypes.Length == 0 ? CompilerMessages.TypeIdentifierNotFound : CompilerMessages.TypeMethodNotFound, m_Type.Name, MemberName);
if (methods.Length > 1)
Error(CompilerMessages.TypeMethodAmbiguous, m_Type.Name, MemberName);
m_Method = methods[0];
if (m_Method.ArgumentTypes.Length > 16)
Error(CompilerMessages.CallableTooManyArguments);
m_IsStatic = m_Method.IsStatic;
check();
}