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| 1 | + |
| 2 | +#ifndef GARRYSMOD_LUA_LUABASE_H |
| 3 | +#define GARRYSMOD_LUA_LUABASE_H |
| 4 | + |
| 5 | +#include <stddef.h> |
| 6 | + |
| 7 | +struct lua_State; |
| 8 | + |
| 9 | +namespace GarrysMod |
| 10 | +{ |
| 11 | + namespace Lua |
| 12 | + { |
| 13 | + typedef int (*CFunc) (lua_State *L); |
| 14 | + |
| 15 | + // |
| 16 | + // Access to raw Lua function calls |
| 17 | + // |
| 18 | + class ILuaBase |
| 19 | + { |
| 20 | + public: |
| 21 | + |
| 22 | + virtual int Top( void ) = 0; |
| 23 | + virtual void Push( int iStackPos ) = 0; |
| 24 | + virtual void Pop( int iAmt = 1 ) = 0; |
| 25 | + virtual void GetTable( int iStackPos ) = 0; |
| 26 | + virtual void GetField( int iStackPos, const char* strName ) = 0; |
| 27 | + virtual void SetField( int iStackPos, const char* strName ) = 0; |
| 28 | + virtual void CreateTable() = 0; |
| 29 | + virtual void SetTable( int i ) = 0; |
| 30 | + virtual void SetMetaTable( int i ) = 0; |
| 31 | + virtual bool GetMetaTable( int i ) = 0; |
| 32 | + virtual void Call( int iArgs, int iResults ) = 0; |
| 33 | + virtual int PCall( int iArgs, int iResults, int iErrorFunc ) = 0; |
| 34 | + virtual int Equal( int iA, int iB ) = 0; |
| 35 | + virtual int RawEqual( int iA, int iB ) = 0; |
| 36 | + virtual void Insert( int iStackPos ) = 0; |
| 37 | + virtual void Remove( int iStackPos ) = 0; |
| 38 | + virtual int Next( int iStackPos ) = 0; |
| 39 | + virtual void* NewUserdata( unsigned int iSize ) = 0; |
| 40 | + virtual void ThrowError( const char* strError ) = 0; |
| 41 | + virtual void CheckType( int iStackPos, int iType ) = 0; |
| 42 | + virtual void ArgError( int iArgNum, const char* strMessage ) = 0; |
| 43 | + virtual void RawGet( int iStackPos ) = 0; |
| 44 | + virtual void RawSet( int iStackPos ) = 0; |
| 45 | + |
| 46 | + virtual const char* GetString( int iStackPos = -1, unsigned int* iOutLen = NULL ) = 0; |
| 47 | + virtual double GetNumber( int iStackPos = -1 ) = 0; |
| 48 | + virtual bool GetBool( int iStackPos = -1 ) = 0; |
| 49 | + virtual CFunc GetCFunction( int iStackPos = -1 ) = 0; |
| 50 | + virtual void* GetUserdata( int iStackPos = -1 ) = 0; |
| 51 | + |
| 52 | + virtual void PushNil() = 0; |
| 53 | + virtual void PushString( const char* val, unsigned int iLen = 0 ) = 0; |
| 54 | + virtual void PushNumber( double val ) = 0; |
| 55 | + virtual void PushBool( bool val ) = 0; |
| 56 | + virtual void PushCFunction( CFunc val ) = 0; |
| 57 | + virtual void PushCClosure( CFunc val, int iVars ) = 0; |
| 58 | + virtual void PushUserdata( void* ) = 0; |
| 59 | + |
| 60 | + // |
| 61 | + // If you create a reference - don't forget to free it! |
| 62 | + // |
| 63 | + virtual int ReferenceCreate() = 0; |
| 64 | + virtual void ReferenceFree( int i ) = 0; |
| 65 | + virtual void ReferencePush( int i ) = 0; |
| 66 | + |
| 67 | + // |
| 68 | + // Push a special value onto the top of the stack ( see below ) |
| 69 | + // |
| 70 | + virtual void PushSpecial( int iType ) = 0; |
| 71 | + |
| 72 | + // |
| 73 | + // For type enums see Types.h |
| 74 | + // |
| 75 | + virtual bool IsType( int iStackPos, int iType ) = 0; |
| 76 | + virtual int GetType( int iStackPos ) = 0; |
| 77 | + virtual const char* GetTypeName( int iType ) = 0; |
| 78 | + |
| 79 | + // |
| 80 | + // Creates a new meta table of string and type and leaves it on the stack. |
| 81 | + // Will return the old meta table of this name if it already exists. |
| 82 | + // |
| 83 | + virtual void CreateMetaTableType( const char* strName, int iType ) = 0; |
| 84 | + |
| 85 | + // |
| 86 | + // Like Get* but throws errors and returns if they're not of the expected type |
| 87 | + // |
| 88 | + virtual const char* CheckString( int iStackPos = -1 ) = 0; |
| 89 | + virtual double CheckNumber( int iStackPos = -1 ) = 0; |
| 90 | + |
| 91 | + }; |
| 92 | + |
| 93 | + enum |
| 94 | + { |
| 95 | + SPECIAL_GLOB, // Global table |
| 96 | + SPECIAL_ENV, // Environment table |
| 97 | + SPECIAL_REG, // Registry table |
| 98 | + }; |
| 99 | + } |
| 100 | +} |
| 101 | + |
| 102 | +#endif |
| 103 | + |
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