Add lua as an internal library in libs/lua

1 files changed, 227 insertions, 0 deletions

diff --git a/libs/lua/src/print.c b/libs/lua/src/print.c
new file mode 100644
index 0000000..e240cfc
--- /dev/null
+++ b/libs/lua/src/print.c
@@ -0,0 +1,227 @@
+/*
+** $Id: print.c,v 1.55a 2006/05/31 13:30:05 lhf Exp $
+** print bytecodes
+** See Copyright Notice in lua.h
+*/
+
+#include <ctype.h>
+#include <stdio.h>
+
+#define luac_c
+#define LUA_CORE
+
+#include "ldebug.h"
+#include "lobject.h"
+#include "lopcodes.h"
+#include "lundump.h"
+
+#define PrintFunction   luaU_print
+
+#define Sizeof(x)       ((int)sizeof(x))
+#define VOID(p)         ((const void*)(p))
+
+static void PrintString(const TString* ts)
+{
+ const char* s=getstr(ts);
+ size_t i,n=ts->tsv.len;
+ putchar('"');
+ for (i=0; i<n; i++)
+ {
+  int c=s[i];
+  switch (c)
+  {
+   case '"': printf("\\\""); break;
+   case '\\': printf("\\\\"); break;
+   case '\a': printf("\\a"); break;
+   case '\b': printf("\\b"); break;
+   case '\f': printf("\\f"); break;
+   case '\n': printf("\\n"); break;
+   case '\r': printf("\\r"); break;
+   case '\t': printf("\\t"); break;
+   case '\v': printf("\\v"); break;
+   default:     if (isprint((unsigned char)c))
+                        putchar(c);
+                else
+                        printf("\\%03u",(unsigned char)c);
+  }
+ }
+ putchar('"');
+}
+
+static void PrintConstant(const Proto* f, int i)
+{
+ const TValue* o=&f->k[i];
+ switch (ttype(o))
+ {
+  case LUA_TNIL:
+        printf("nil");
+        break;
+  case LUA_TBOOLEAN:
+        printf(bvalue(o) ? "true" : "false");
+        break;
+  case LUA_TNUMBER:
+        printf(LUA_NUMBER_FMT,nvalue(o));
+        break;
+  case LUA_TSTRING:
+        PrintString(rawtsvalue(o));
+        break;
+  default:                              /* cannot happen */
+        printf("? type=%d",ttype(o));
+        break;
+ }
+}
+
+static void PrintCode(const Proto* f)
+{
+ const Instruction* code=f->code;
+ int pc,n=f->sizecode;
+ for (pc=0; pc<n; pc++)
+ {
+  Instruction i=code[pc];
+  OpCode o=GET_OPCODE(i);
+  int a=GETARG_A(i);
+  int b=GETARG_B(i);
+  int c=GETARG_C(i);
+  int bx=GETARG_Bx(i);
+  int sbx=GETARG_sBx(i);
+  int line=getline(f,pc);
+  printf("\t%d\t",pc+1);
+  if (line>0) printf("[%d]\t",line); else printf("[-]\t");
+  printf("%-9s\t",luaP_opnames[o]);
+  switch (getOpMode(o))
+  {
+   case iABC:
+    printf("%d",a);
+    if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (-1-INDEXK(b)) : b);
+    if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (-1-INDEXK(c)) : c);
+    break;
+   case iABx:
+    if (getBMode(o)==OpArgK) printf("%d %d",a,-1-bx); else printf("%d %d",a,bx);
+    break;
+   case iAsBx:
+    if (o==OP_JMP) printf("%d",sbx); else printf("%d %d",a,sbx);
+    break;
+  }
+  switch (o)
+  {
+   case OP_LOADK:
+    printf("\t; "); PrintConstant(f,bx);
+    break;
+   case OP_GETUPVAL:
+   case OP_SETUPVAL:
+    printf("\t; %s", (f->sizeupvalues>0) ? getstr(f->upvalues[b]) : "-");
+    break;
+   case OP_GETGLOBAL:
+   case OP_SETGLOBAL:
+    printf("\t; %s",svalue(&f->k[bx]));
+    break;
+   case OP_GETTABLE:
+   case OP_SELF:
+    if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); }
+    break;
+   case OP_SETTABLE:
+   case OP_ADD:
+   case OP_SUB:
+   case OP_MUL:
+   case OP_DIV:
+   case OP_POW:
+   case OP_EQ:
+   case OP_LT:
+   case OP_LE:
+    if (ISK(b) || ISK(c))
+    {
+     printf("\t; ");
+     if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-");
+     printf(" ");
+     if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-");
+    }
+    break;
+   case OP_JMP:
+   case OP_FORLOOP:
+   case OP_FORPREP:
+    printf("\t; to %d",sbx+pc+2);
+    break;
+   case OP_CLOSURE:
+    printf("\t; %p",VOID(f->p[bx]));
+    break;
+   case OP_SETLIST:
+    if (c==0) printf("\t; %d",(int)code[++pc]);
+    else printf("\t; %d",c);
+    break;
+   default:
+    break;
+  }
+  printf("\n");
+ }
+}
+
+#define SS(x)   (x==1)?"":"s"
+#define S(x)    x,SS(x)
+
+static void PrintHeader(const Proto* f)
+{
+ const char* s=getstr(f->source);
+ if (*s=='@' || *s=='=')
+  s++;
+ else if (*s==LUA_SIGNATURE[0])
+  s="(bstring)";
+ else
+  s="(string)";
+ printf("\n%s <%s:%d,%d> (%d instruction%s, %d bytes at %p)\n",
+        (f->linedefined==0)?"main":"function",s,
+        f->linedefined,f->lastlinedefined,
+        S(f->sizecode),f->sizecode*Sizeof(Instruction),VOID(f));
+ printf("%d%s param%s, %d slot%s, %d upvalue%s, ",
+        f->numparams,f->is_vararg?"+":"",SS(f->numparams),
+        S(f->maxstacksize),S(f->nups));
+ printf("%d local%s, %d constant%s, %d function%s\n",
+        S(f->sizelocvars),S(f->sizek),S(f->sizep));
+}
+
+static void PrintConstants(const Proto* f)
+{
+ int i,n=f->sizek;
+ printf("constants (%d) for %p:\n",n,VOID(f));
+ for (i=0; i<n; i++)
+ {
+  printf("\t%d\t",i+1);
+  PrintConstant(f,i);
+  printf("\n");
+ }
+}
+
+static void PrintLocals(const Proto* f)
+{
+ int i,n=f->sizelocvars;
+ printf("locals (%d) for %p:\n",n,VOID(f));
+ for (i=0; i<n; i++)
+ {
+  printf("\t%d\t%s\t%d\t%d\n",
+  i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
+ }
+}
+
+static void PrintUpvalues(const Proto* f)
+{
+ int i,n=f->sizeupvalues;
+ printf("upvalues (%d) for %p:\n",n,VOID(f));
+ if (f->upvalues==NULL) return;
+ for (i=0; i<n; i++)
+ {
+  printf("\t%d\t%s\n",i,getstr(f->upvalues[i]));
+ }
+}
+
+void PrintFunction(const Proto* f, int full)
+{
+ int i,n=f->sizep;
+ PrintHeader(f);
+ PrintCode(f);
+ if (full)
+ {
+  PrintConstants(f);
+  PrintLocals(f);
+  PrintUpvalues(f);
+ }
+ for (i=0; i<n; i++) PrintFunction(f->p[i],full);
+}