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-rw-r--r--ldump.c129
1 files changed, 57 insertions, 72 deletions
diff --git a/ldump.c b/ldump.c
index c453175d..eff2c85c 100644
--- a/ldump.c
+++ b/ldump.c
@@ -1,6 +1,6 @@
1/* 1/*
2** $Id: ldump.c,v 2.5 2005/05/05 20:47:02 roberto Exp roberto $ 2** $Id: ldump.c,v 1.13 2005/11/01 17:04:55 lhf Exp lhf $
3** save pre-compiled Lua chunks 3** save precompiled Lua chunks
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
6 6
@@ -12,13 +12,9 @@
12#include "lua.h" 12#include "lua.h"
13 13
14#include "lobject.h" 14#include "lobject.h"
15#include "lopcodes.h"
16#include "lstate.h" 15#include "lstate.h"
17#include "lundump.h" 16#include "lundump.h"
18 17
19#define DumpVector(b,n,size,D) DumpBlock(b,(n)*(size),D)
20#define DumpLiteral(s,D) DumpBlock("" s,(sizeof(s))-1,D)
21
22typedef struct { 18typedef struct {
23 lua_State* L; 19 lua_State* L;
24 lua_Writer writer; 20 lua_Writer writer;
@@ -27,6 +23,9 @@ typedef struct {
27 int status; 23 int status;
28} DumpState; 24} DumpState;
29 25
26#define DumpMem(b,n,size,D) DumpBlock(b,(n)*(size),D)
27#define DumpVar(x,D) DumpMem(&x,1,sizeof(x),D)
28
30static void DumpBlock(const void* b, size_t size, DumpState* D) 29static void DumpBlock(const void* b, size_t size, DumpState* D)
31{ 30{
32 if (D->status==0) 31 if (D->status==0)
@@ -37,135 +36,121 @@ static void DumpBlock(const void* b, size_t size, DumpState* D)
37 } 36 }
38} 37}
39 38
40static void DumpByte(int y, DumpState* D) 39static void DumpChar(int y, DumpState* D)
41{ 40{
42 char x=(char)y; 41 char x=(char)y;
43 DumpBlock(&x,sizeof(x),D); 42 DumpVar(x,D);
44} 43}
45 44
46static void DumpInt(int x, DumpState* D) 45static void DumpInt(int x, DumpState* D)
47{ 46{
48 DumpBlock(&x,sizeof(x),D); 47 DumpVar(x,D);
49} 48}
50 49
51static void DumpSize(size_t x, DumpState* D) 50static void DumpNumber(lua_Number x, DumpState* D)
52{ 51{
53 DumpBlock(&x,sizeof(x),D); 52 DumpVar(x,D);
54} 53}
55 54
56static void DumpNumber(lua_Number x, DumpState* D) 55static void DumpVector(const void* b, int n, size_t size, DumpState* D)
57{ 56{
58 DumpBlock(&x,sizeof(x),D); 57 DumpInt(n,D);
58 DumpMem(b,n,size,D);
59} 59}
60 60
61static void DumpString(const TString* s, DumpState* D) 61static void DumpString(const TString* s, DumpState* D)
62{ 62{
63 if (s==NULL || getstr(s)==NULL) 63 if (s==NULL || getstr(s)==NULL)
64 DumpSize(0,D); 64 {
65 size_t size=0;
66 DumpVar(size,D);
67 }
65 else 68 else
66 { 69 {
67 size_t size=s->tsv.len+1; /* include trailing '\0' */ 70 size_t size=s->tsv.len+1; /* include trailing '\0' */
68 DumpSize(size,D); 71 DumpVar(size,D);
69 DumpBlock(getstr(s),size,D); 72 DumpBlock(getstr(s),size,D);
70 } 73 }
71} 74}
72 75
73static void DumpCode(const Proto* f, DumpState* D) 76#define DumpCode(f,D) DumpVector(f->code,f->sizecode,sizeof(Instruction),D)
74{
75 DumpInt(f->sizecode,D);
76 DumpVector(f->code,f->sizecode,sizeof(*f->code),D);
77}
78
79static void DumpLocals(const Proto* f, DumpState* D)
80{
81 int i,n=f->sizelocvars;
82 DumpInt(n,D);
83 for (i=0; i<n; i++)
84 {
85 DumpString(f->locvars[i].varname,D);
86 DumpInt(f->locvars[i].startpc,D);
87 DumpInt(f->locvars[i].endpc,D);
88 }
89}
90
91static void DumpLines(const Proto* f, DumpState* D)
92{
93 DumpInt(f->sizelineinfo,D);
94 DumpVector(f->lineinfo,f->sizelineinfo,sizeof(*f->lineinfo),D);
95}
96
97static void DumpUpvalues(const Proto* f, DumpState* D)
98{
99 int i,n=f->sizeupvalues;
100 DumpInt(n,D);
101 for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
102}
103 77
104static void DumpFunction(const Proto* f, const TString* p, DumpState* D); 78static void DumpFunction(const Proto* f, const TString* p, DumpState* D);
105 79
106static void DumpConstants(const Proto* f, DumpState* D) 80static void DumpConstants(const Proto* f, DumpState* D)
107{ 81{
108 int i,n; 82 int i,n=f->sizek;
109 DumpInt(n=f->sizek,D); 83 DumpInt(n,D);
110 for (i=0; i<n; i++) 84 for (i=0; i<n; i++)
111 { 85 {
112 const TValue* o=&f->k[i]; 86 const TValue* o=&f->k[i];
113 DumpByte(ttype(o),D); 87 DumpChar(ttype(o),D);
114 switch (ttype(o)) 88 switch (ttype(o))
115 { 89 {
90 case LUA_TNIL:
91 break;
92 case LUA_TBOOLEAN:
93 DumpChar(bvalue(o),D);
94 break;
116 case LUA_TNUMBER: 95 case LUA_TNUMBER:
117 DumpNumber(nvalue(o),D); 96 DumpNumber(nvalue(o),D);
118 break; 97 break;
119 case LUA_TSTRING: 98 case LUA_TSTRING:
120 DumpString(rawtsvalue(o),D); 99 DumpString(rawtsvalue(o),D);
121 break; 100 break;
122 case LUA_TNIL:
123 break;
124 case LUA_TBOOLEAN:
125 DumpByte(bvalue(o),D);
126 break;
127 default: 101 default:
128 lua_assert(0); /* cannot happen */ 102 lua_assert(0); /* cannot happen */
129 break; 103 break;
130 } 104 }
131 } 105 }
132 DumpInt(n=f->sizep,D); 106 n=f->sizep;
107 DumpInt(n,D);
133 for (i=0; i<n; i++) DumpFunction(f->p[i],f->source,D); 108 for (i=0; i<n; i++) DumpFunction(f->p[i],f->source,D);
134} 109}
135 110
111static void DumpDebug(const Proto* f, DumpState* D)
112{
113 int i,n;
114 n= (D->strip) ? 0 : f->sizelineinfo;
115 DumpVector(f->lineinfo,n,sizeof(int),D);
116 n= (D->strip) ? 0 : f->sizelocvars;
117 DumpInt(n,D);
118 for (i=0; i<n; i++)
119 {
120 DumpString(f->locvars[i].varname,D);
121 DumpInt(f->locvars[i].startpc,D);
122 DumpInt(f->locvars[i].endpc,D);
123 }
124 n= (D->strip) ? 0 : f->sizeupvalues;
125 DumpInt(n,D);
126 for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
127}
128
136static void DumpFunction(const Proto* f, const TString* p, DumpState* D) 129static void DumpFunction(const Proto* f, const TString* p, DumpState* D)
137{ 130{
138 DumpString((f->source==p) ? NULL : f->source,D); 131 DumpString((f->source==p) ? NULL : f->source,D);
139 DumpInt(f->linedefined,D); 132 DumpInt(f->linedefined,D);
140 DumpInt(f->lastlinedefined,D); 133 DumpInt(f->lastlinedefined,D);
141 DumpByte(f->nups,D); 134 DumpChar(f->nups,D);
142 DumpByte(f->numparams,D); 135 DumpChar(f->numparams,D);
143 DumpByte(f->is_vararg,D); 136 DumpChar(f->is_vararg,D);
144 DumpByte(f->maxstacksize,D); 137 DumpChar(f->maxstacksize,D);
145 if (D->strip) DumpInt(0,D); else DumpLines(f,D);
146 if (D->strip) DumpInt(0,D); else DumpLocals(f,D);
147 if (D->strip) DumpInt(0,D); else DumpUpvalues(f,D);
148 DumpConstants(f,D);
149 DumpCode(f,D); 138 DumpCode(f,D);
139 DumpConstants(f,D);
140 DumpDebug(f,D);
150} 141}
151 142
152static void DumpHeader(DumpState* D) 143static void DumpHeader(DumpState* D)
153{ 144{
154 DumpLiteral(LUA_SIGNATURE,D); 145 char h[LUAC_HEADERSIZE];
155 DumpByte(VERSION,D); 146 luaU_header(h);
156 DumpByte(luaU_endianness(),D); 147 DumpBlock(h,LUAC_HEADERSIZE,D);
157 DumpByte(sizeof(int),D);
158 DumpByte(sizeof(size_t),D);
159 DumpByte(sizeof(Instruction),D);
160 DumpByte(sizeof(lua_Number),D);
161 DumpNumber(TEST_NUMBER,D);
162} 148}
163 149
164/* 150/*
165** dump Lua function as precompiled chunk 151** dump Lua function as precompiled chunk
166*/ 152*/
167int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, 153int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip)
168 int strip)
169{ 154{
170 DumpState D; 155 DumpState D;
171 D.L=L; 156 D.L=L;