1/*
2** $Id: lcode.h,v 1.64.1.1 2017/04/19 17:20:42 roberto Exp $
3** Code generator for Lua
4** See Copyright Notice in lua.h
5*/
6
7#ifndef lcode_h
8#define lcode_h
9
10#include "llex.h"
11#include "lobject.h"
12#include "lopcodes.h"
13#include "lparser.h"
14
15
16/*
17** Marks the end of a patch list. It is an invalid value both as an absolute
18** address, and as a list link (would link an element to itself).
19*/
20#define NO_JUMP (-1)
21
22
23/*
24** grep "ORDER OPR" if you change these enums (ORDER OP)
25*/
26typedef enum BinOpr {
27 OPR_ADD, OPR_SUB, OPR_MUL, OPR_MOD, OPR_POW,
28 OPR_DIV,
29 OPR_IDIV,
30 OPR_BAND, OPR_BOR, OPR_BXOR,
31 OPR_SHL, OPR_SHR,
32 OPR_CONCAT,
33 OPR_EQ, OPR_LT, OPR_LE,
34 OPR_NE, OPR_GT, OPR_GE,
35 OPR_AND, OPR_OR,
36 OPR_NOBINOPR
37} BinOpr;
38
39
40typedef enum UnOpr { OPR_MINUS, OPR_BNOT, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;
41
42
43/* get (pointer to) instruction of given 'expdesc' */
44#define getinstruction(fs,e) ((fs)->f->code[(e)->u.info])
45
46#define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx)
47
48#define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET)
49
50#define luaK_jumpto(fs,t) luaK_patchlist(fs, luaK_jump(fs), t)
51
52LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx);
53LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C);
54LUAI_FUNC int luaK_codek (FuncState *fs, int reg, int k);
55LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
56LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
57LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);
58LUAI_FUNC void luaK_checkstack (FuncState *fs, int n);
59LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s);
60LUAI_FUNC int luaK_intK (FuncState *fs, lua_Integer n);
61LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e);
62LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e);
63LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e);
64LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e);
65LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e);
66LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e);
67LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key);
68LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k);
69LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e);
70LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e);
71LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e);
72LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults);
73LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);
74LUAI_FUNC int luaK_jump (FuncState *fs);
75LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);
76LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
77LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
78LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level);
79LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
80LUAI_FUNC int luaK_getlabel (FuncState *fs);
81LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line);
82LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);
83LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1,
84 expdesc *v2, int line);
85LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);
86
87
88#endif
89