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path: root/lib/lua/src/lcode.h
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/*
** $Id: lcode.h,v 1.48.1.1 2007/12/27 13:02:25 roberto Exp $
** Code generator for Lua
** See Copyright Notice in lua.h
*/

#ifndef lcode_h
#define lcode_h

#include "llex.h"
#include "lobject.h"
#include "lopcodes.h"
#include "lparser.h"


/*
** Marks the end of a patch list. It is an invalid value both as an absolute
** address, and as a list link (would link an element to itself).
*/
#define NO_JUMP (-1)


/*
** grep "ORDER OPR" if you change these enums
*/
typedef enum BinOpr {
  OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,
  OPR_CONCAT,
  OPR_NE, OPR_EQ,
  OPR_LT, OPR_LE, OPR_GT, OPR_GE,
  OPR_AND, OPR_OR,
  OPR_NOBINOPR
} BinOpr;


typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;


#define getcode(fs,e)	((fs)->f->code[(e)->u.s.info])

#define luaK_codeAsBx(fs,o,A,sBx)	luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx)

#define luaK_setmultret(fs,e)	luaK_setreturns(fs, e, LUA_MULTRET)

LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);
LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);
LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);
LUAI_FUNC void luaK_checkstack (FuncState *fs, int n);
LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);
LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r);
LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);
LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);
LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);
LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);
LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);
LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);
LUAI_FUNC int luaK_jump (FuncState *fs);
LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);
LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
LUAI_FUNC int luaK_getlabel (FuncState *fs);
LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v);
LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);
LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2);
LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);


#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-06 05:17:53 +0000
mber of lines currently in buffer. u32 getLineCount() const; // Get scrollback size, maximum number of lines in buffer. u32 getScrollback() const; // Get reference to i-th chat line. const ChatLine& getLine(u32 index) const; // Increase each chat line's age by dtime. void step(f32 dtime); // Delete oldest N chat lines. void deleteOldest(u32 count); // Delete lines older than maxAge. void deleteByAge(f32 maxAge); // Get number of columns, 0 if reformat has not been called yet. u32 getColumns() const; // Get number of rows, 0 if reformat has not been called yet. u32 getRows() const; // Update console size and reformat all formatted lines. void reformat(u32 cols, u32 rows); // Get formatted line for a given row (0 is top of screen). // Only valid after reformat has been called at least once const ChatFormattedLine& getFormattedLine(u32 row) const; // Scrolling in formatted buffer (relative) // positive rows == scroll up, negative rows == scroll down void scroll(s32 rows); // Scrolling in formatted buffer (absolute) void scrollAbsolute(s32 scroll); // Scroll to bottom of buffer (newest) void scrollBottom(); // Scroll to top of buffer (oldest) void scrollTop(); // Format a chat line for the given number of columns. // Appends the formatted lines to the destination array and // returns the number of formatted lines. u32 formatChatLine(const ChatLine& line, u32 cols, std::vector<ChatFormattedLine>& destination) const; protected: s32 getTopScrollPos() const; s32 getBottomScrollPos() const; private: // Scrollback size u32 m_scrollback; // Array of unformatted chat lines std::vector<ChatLine> m_unformatted; // Number of character columns in console u32 m_cols; // Number of character rows in console u32 m_rows; // Scroll position (console's top line index into m_formatted) s32 m_scroll; // Array of formatted lines std::vector<ChatFormattedLine> m_formatted; // Empty formatted line, for error returns ChatFormattedLine m_empty_formatted_line; }; class ChatPrompt { public: ChatPrompt(std::wstring prompt, u32 history_limit); ~ChatPrompt(); // Input character void input(wchar_t ch); // Submit, clear and return current line std::wstring submit(); // Clear the current line void clear(); // Replace the current line with the given text void replace(std::wstring line); // Select previous command from history void historyPrev(); // Select next command from history void historyNext(); // Nick completion void nickCompletion(const std::list<std::string>& names, bool backwards); // Update console size and reformat the visible portion of the prompt void reformat(u32 cols); // Get visible portion of the prompt. std::wstring getVisiblePortion() const; // Get cursor position (relative to visible portion). -1 if invalid s32 getVisibleCursorPosition() const; // Cursor operations enum CursorOp { CURSOROP_MOVE, CURSOROP_DELETE }; // Cursor operation direction enum CursorOpDir { CURSOROP_DIR_LEFT, CURSOROP_DIR_RIGHT }; // Cursor operation scope enum CursorOpScope { CURSOROP_SCOPE_CHARACTER, CURSOROP_SCOPE_WORD, CURSOROP_SCOPE_LINE }; // Cursor operation // op specifies whether it's a move or delete operation // dir specifies whether the operation goes left or right // scope specifies how far the operation will reach (char/word/line) // Examples: // cursorOperation(CURSOROP_MOVE, CURSOROP_DIR_RIGHT, CURSOROP_SCOPE_LINE) // moves the cursor to the end of the line. // cursorOperation(CURSOROP_DELETE, CURSOROP_DIR_LEFT, CURSOROP_SCOPE_WORD) // deletes the word to the left of the cursor. void cursorOperation(CursorOp op, CursorOpDir dir, CursorOpScope scope); protected: // set m_view to ensure that 0 <= m_view <= m_cursor < m_view + m_cols // if line can be fully shown, set m_view to zero // else, also ensure m_view <= m_line.size() + 1 - m_cols void clampView(); private: // Prompt prefix std::wstring m_prompt; // Currently edited line std::wstring m_line; // History buffer std::vector<std::wstring> m_history; // History index (0 <= m_history_index <= m_history.size()) u32 m_history_index; // Maximum number of history entries u32 m_history_limit; // Number of columns excluding columns reserved for the prompt s32 m_cols; // Start of visible portion (index into m_line) s32 m_view; // Cursor (index into m_line) s32 m_cursor; // Last nick completion start (index into m_line) s32 m_nick_completion_start; // Last nick completion start (index into m_line) s32 m_nick_completion_end; }; class ChatBackend { public: ChatBackend(); ~ChatBackend(); // Add chat message void addMessage(std::wstring name, std::wstring text); // Parse and add unparsed chat message void addUnparsedMessage(std::wstring line); // Get the console buffer ChatBuffer& getConsoleBuffer(); // Get the recent messages buffer ChatBuffer& getRecentBuffer(); // Concatenate all recent messages std::wstring getRecentChat(); // Get the console prompt ChatPrompt& getPrompt(); // Reformat all buffers void reformat(u32 cols, u32 rows); // Clear all recent messages void clearRecentChat(); // Age recent messages void step(float dtime); // Scrolling void scroll(s32 rows); void scrollPageDown(); void scrollPageUp(); private: ChatBuffer m_console_buffer; ChatBuffer m_recent_buffer; ChatPrompt m_prompt; }; #endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-06 05:17:53 +0000