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04c2da0cf2
#add FClass and FClasses added to encapsulate (and ultimately replace) UClass and FClassTree. #add StringUtils contains a bunch of string-related functions which were in FHeaderParser for no real reason. #change Replaced FClassTree with UHT and fixed up all the code which was affected. #codereview robert.manuszewski [CL 2045258 by Steve Robb in Main branch]
105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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Classes.h: Container structure for all the Classes.
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=============================================================================*/
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#pragma once
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#include "ClassTree.h"
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#define WIP_UHT_REFACTOR 1
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class FClass;
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class FClasses
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{
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public:
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explicit FClasses(UPackage* InPackage);
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/**
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* Returns the root class (i.e. UObject)
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*
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* @return The root class.
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*/
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FClass* GetRootClass() const;
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/**
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* Determines whether the class hierarchy rooted at Suspect is
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* dependent on the hierarchy rooted at Source.
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*
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* @param Suspect Root of hierarchy for suspect class
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* @param Source Root of hierarchy for source class
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* @return true if the hierarchy rooted at Suspect is dependent on the one rooted at Source, false otherwise
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*/
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bool IsDependentOn(const FClass* Suspect, const FClass* Source) const;
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FClass* FindClass(const TCHAR* ClassName) const;
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TArray<FClass*> GetDerivedClasses(FClass* Parent) const;
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/**
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* Attempts to find a script class based on the given name. Will attempt to strip
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* the prefix of the given name while searching. Throws script errors when appropriate.
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*
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* @param InClassName Name w/ Unreal prefix to use when searching for a class
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* @return The found class, or NULL if the class was not found.
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*/
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FClass* FindScriptClass(const FString& InClassName) const;
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/**
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* Attempts to find a script class based on the given name. Will attempt to strip
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* the prefix of the given name while searching. Throws an exception with the script error
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* if the class could not be found.
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*
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* @param InClassName Name w/ Unreal prefix to use when searching for a class
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* @return The found class.
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*/
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FClass* FindScriptClassOrThrow(const FString& InClassName) const;
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/**
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* Attempts to find a script class based on the given name. Will attempt to strip
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* the prefix of the given name while searching. Throws script errors when appropriate.
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*
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* @param InClassName Name w/ Unreal prefix to use when searching for a class
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* @param OutErrorMsg Error message (if any) giving the caller flexibility in how they present an error
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* @return The found class, or NULL if the class was not found.
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*/
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FClass* FindScriptClass(const FString& InClassName, FString& OutErrorMsg) const;
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/**
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* Returns an array of classes for the given package.
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*
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* @param InPackage The package to return the classes from.
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* @return The classes in the specified package.
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*/
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TArray<FClass*> GetClassesInPackage(UPackage* InPackage = ANY_PACKAGE) const;
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// Anything in here should eventually be removed when this class encapsulates its own data structure, rather than being 'poked' by the outside
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#if WIP_UHT_REFACTOR
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/**
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* Move a class node in the hierarchy tree after a class has changed its SuperClass
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*
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* @param SearchClass the class that has changed parents
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* @param InNewParentClass if non-null force reparenting to this instead of the SuperClass
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*
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* @return true if SearchClass was successfully moved to the new location
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*/
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void ChangeParentClass(FClass* Class);
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/**
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* Validates the state of the tree (shouldn't be needed once this class has well-defined invariants).
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*/
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void Validate();
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#endif
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private:
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FClass* UObjectClass;
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FClassTree ClassTree;
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friend auto begin(const FClasses& Classes) -> decltype(begin(TObjectRange<FClass>())) { return begin(TObjectRange<FClass>()); }
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friend auto end (const FClasses& Classes) -> decltype(end (TObjectRange<FClass>())) { return end (TObjectRange<FClass>()); }
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};
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