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comparison src/lua/print.c @ 11:27763b933818

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raise lua sources up one level
author Robert McIntyre <rlm@mit.edu>
date Sat, 03 Mar 2012 11:07:39 -0600
parents src/lua/src/print.c@f9f4f1b99eed
children
comparison
equal deleted inserted replaced
10:48b74a4e4692 11:27763b933818
1 /*
2 ** $Id: print.c,v 1.55a 2006/05/31 13:30:05 lhf Exp $
3 ** print bytecodes
4 ** See Copyright Notice in lua.h
5 */
6
7 #include <ctype.h>
8 #include <stdio.h>
9
10 #define luac_c
11 #define LUA_CORE
12
13 #include "ldebug.h"
14 #include "lobject.h"
15 #include "lopcodes.h"
16 #include "lundump.h"
17
18 #define PrintFunction luaU_print
19
20 #define Sizeof(x) ((int)sizeof(x))
21 #define VOID(p) ((const void*)(p))
22
23 static void PrintString(const TString* ts)
24 {
25 const char* s=getstr(ts);
26 size_t i,n=ts->tsv.len;
27 putchar('"');
28 for (i=0; i<n; i++)
29 {
30 int c=s[i];
31 switch (c)
32 {
33 case '"': printf("\\\""); break;
34 case '\\': printf("\\\\"); break;
35 case '\a': printf("\\a"); break;
36 case '\b': printf("\\b"); break;
37 case '\f': printf("\\f"); break;
38 case '\n': printf("\\n"); break;
39 case '\r': printf("\\r"); break;
40 case '\t': printf("\\t"); break;
41 case '\v': printf("\\v"); break;
42 default: if (isprint((unsigned char)c))
43 putchar(c);
44 else
45 printf("\\%03u",(unsigned char)c);
46 }
47 }
48 putchar('"');
49 }
50
51 static void PrintConstant(const Proto* f, int i)
52 {
53 const TValue* o=&f->k[i];
54 switch (ttype(o))
55 {
56 case LUA_TNIL:
57 printf("nil");
58 break;
59 case LUA_TBOOLEAN:
60 printf(bvalue(o) ? "true" : "false");
61 break;
62 case LUA_TNUMBER:
63 printf(LUA_NUMBER_FMT,nvalue(o));
64 break;
65 case LUA_TSTRING:
66 PrintString(rawtsvalue(o));
67 break;
68 default: /* cannot happen */
69 printf("? type=%d",ttype(o));
70 break;
71 }
72 }
73
74 static void PrintCode(const Proto* f)
75 {
76 const Instruction* code=f->code;
77 int pc,n=f->sizecode;
78 for (pc=0; pc<n; pc++)
79 {
80 Instruction i=code[pc];
81 OpCode o=GET_OPCODE(i);
82 int a=GETARG_A(i);
83 int b=GETARG_B(i);
84 int c=GETARG_C(i);
85 int bx=GETARG_Bx(i);
86 int sbx=GETARG_sBx(i);
87 int line=getline(f,pc);
88 printf("\t%d\t",pc+1);
89 if (line>0) printf("[%d]\t",line); else printf("[-]\t");
90 printf("%-9s\t",luaP_opnames[o]);
91 switch (getOpMode(o))
92 {
93 case iABC:
94 printf("%d",a);
95 if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (-1-INDEXK(b)) : b);
96 if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (-1-INDEXK(c)) : c);
97 break;
98 case iABx:
99 if (getBMode(o)==OpArgK) printf("%d %d",a,-1-bx); else printf("%d %d",a,bx);
100 break;
101 case iAsBx:
102 if (o==OP_JMP) printf("%d",sbx); else printf("%d %d",a,sbx);
103 break;
104 }
105 switch (o)
106 {
107 case OP_LOADK:
108 printf("\t; "); PrintConstant(f,bx);
109 break;
110 case OP_GETUPVAL:
111 case OP_SETUPVAL:
112 printf("\t; %s", (f->sizeupvalues>0) ? getstr(f->upvalues[b]) : "-");
113 break;
114 case OP_GETGLOBAL:
115 case OP_SETGLOBAL:
116 printf("\t; %s",svalue(&f->k[bx]));
117 break;
118 case OP_GETTABLE:
119 case OP_SELF:
120 if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); }
121 break;
122 case OP_SETTABLE:
123 case OP_ADD:
124 case OP_SUB:
125 case OP_MUL:
126 case OP_DIV:
127 case OP_POW:
128 case OP_EQ:
129 case OP_LT:
130 case OP_LE:
131 if (ISK(b) || ISK(c))
132 {
133 printf("\t; ");
134 if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-");
135 printf(" ");
136 if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-");
137 }
138 break;
139 case OP_JMP:
140 case OP_FORLOOP:
141 case OP_FORPREP:
142 printf("\t; to %d",sbx+pc+2);
143 break;
144 case OP_CLOSURE:
145 printf("\t; %p",VOID(f->p[bx]));
146 break;
147 case OP_SETLIST:
148 if (c==0) printf("\t; %d",(int)code[++pc]);
149 else printf("\t; %d",c);
150 break;
151 default:
152 break;
153 }
154 printf("\n");
155 }
156 }
157
158 #define SS(x) (x==1)?"":"s"
159 #define S(x) x,SS(x)
160
161 static void PrintHeader(const Proto* f)
162 {
163 const char* s=getstr(f->source);
164 if (*s=='@' || *s=='=')
165 s++;
166 else if (*s==LUA_SIGNATURE[0])
167 s="(bstring)";
168 else
169 s="(string)";
170 printf("\n%s <%s:%d,%d> (%d instruction%s, %d bytes at %p)\n",
171 (f->linedefined==0)?"main":"function",s,
172 f->linedefined,f->lastlinedefined,
173 S(f->sizecode),f->sizecode*Sizeof(Instruction),VOID(f));
174 printf("%d%s param%s, %d slot%s, %d upvalue%s, ",
175 f->numparams,f->is_vararg?"+":"",SS(f->numparams),
176 S(f->maxstacksize),S(f->nups));
177 printf("%d local%s, %d constant%s, %d function%s\n",
178 S(f->sizelocvars),S(f->sizek),S(f->sizep));
179 }
180
181 static void PrintConstants(const Proto* f)
182 {
183 int i,n=f->sizek;
184 printf("constants (%d) for %p:\n",n,VOID(f));
185 for (i=0; i<n; i++)
186 {
187 printf("\t%d\t",i+1);
188 PrintConstant(f,i);
189 printf("\n");
190 }
191 }
192
193 static void PrintLocals(const Proto* f)
194 {
195 int i,n=f->sizelocvars;
196 printf("locals (%d) for %p:\n",n,VOID(f));
197 for (i=0; i<n; i++)
198 {
199 printf("\t%d\t%s\t%d\t%d\n",
200 i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
201 }
202 }
203
204 static void PrintUpvalues(const Proto* f)
205 {
206 int i,n=f->sizeupvalues;
207 printf("upvalues (%d) for %p:\n",n,VOID(f));
208 if (f->upvalues==NULL) return;
209 for (i=0; i<n; i++)
210 {
211 printf("\t%d\t%s\n",i,getstr(f->upvalues[i]));
212 }
213 }
214
215 void PrintFunction(const Proto* f, int full)
216 {
217 int i,n=f->sizep;
218 PrintHeader(f);
219 PrintCode(f);
220 if (full)
221 {
222 PrintConstants(f);
223 PrintLocals(f);
224 PrintUpvalues(f);
225 }
226 for (i=0; i<n; i++) PrintFunction(f->p[i],full);
227 }