static int lua_combine( lua_State* L) {
int n = lua_gettop( L); /* Number of functions to combine */
if( 1 == n) {
return 1; /* Only one function, nothing to combine */
} else {
int i, pc = 3*n + 1;
Proto* f = luaF_newproto( L);
setptvalue2s( L,L->top,f);
incr_top( L);
f->source = luaS_newliteral( L,"=(combiner)");
f->maxstacksize = 2;
f->is_vararg = VARARG_ISVARARG;
f->code = luaM_newvector(L, pc, Instruction);
f->sizecode = pc;
f->p = luaM_newvector( L, n, Proto*);
f->sizep = n;
for( i = pc = 0; i < n; i ++) {
int proto_idx = i-n-1;
Proto *p = clvalue( L->top + proto_idx)->l.p;
f->p[i] = p;
f->code[pc++] = CREATE_ABx( OP_CLOSURE, 0, i);
f->code[pc++] = CREATE_ABx( OP_VARARG, 1, 0);
f->code[pc++] = CREATE_ABC( OP_CALL, 0, 0, 1);
}
f->code[pc++] = CREATE_ABC( OP_RETURN, 0, 1, 0);
return 1;
}
}
static const Proto* combine(lua_State* L, int n)
{
if (n==1)
return toproto(L,-1);
else
{
int i,pc;
Proto* f=luaF_newproto(L);
setptvalue2s(L,L->top,f); incr_top(L);
f->source=luaS_newliteral(L,"=(" PROGNAME ")");
f->maxstacksize=1;
pc=2*n+1;
f->code=luaM_newvector(L,pc,Instruction);
f->sizecode=pc;
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
pc=0;
for (i=0; i<n; i++)
{
f->p[i]=toproto(L,i-n-1);
f->code[pc++]=CREATE_ABx(OP_CLOSURE,0,i);
f->code[pc++]=CREATE_ABC(OP_CALL,0,1,1);
}
f->code[pc++]=CREATE_ABC(OP_RETURN,0,1,0);
return f;
}
}
int codegen_codeABx(FuncState *fs, OpCode o, int a, unsigned int bc)
{
ktap_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx);
ktap_assert(getCMode(o) == OpArgN);
ktap_assert(a <= MAXARG_A && bc <= MAXARG_Bx);
return codegen_code(fs, CREATE_ABx(o, a, bc));
}
static Proto* combine(lua_State* L, int n)
{
if (n==1)
{
const Closure* c=(const Closure*)lua_topointer(L,-1);
return c->l.p;
}
else
{
int i,pc=0;
Proto* f=luaF_newproto(L);
f->source=luaS_newliteral(L,"=(none)");
f->maxstacksize=1;
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
f->sizecode=2*n+1;
f->code=luaM_newvector(L,f->sizecode,Instruction);
for (i=0; i<n; i++)
{
const Closure* c=(const Closure*)lua_topointer(L,i-n);
f->p[i]=c->l.p;
f->code[pc++]=CREATE_ABx(OP_CLOSURE,0,i);
f->code[pc++]=CREATE_ABC(OP_CALL,0,1,1);
}
f->code[pc++]=CREATE_ABC(OP_RETURN,0,1,0);
return f;
}
}
static Proto* combine(lua_State* L, int n)
{
if (n==1) {
int i;
Proto* f = toproto(L,-1);
if (LDS2) {
Inject(f,0);
for (i=0; i<f->sizep; i++) {
Inject(f->p[i],i+1);
}
}
return f;
}
else
{
int i,pc=0;
Proto* f=luaF_newproto(L);
f->source=luaS_newliteral(L,"=(" PROGNAME ")");
f->maxstacksize=1;
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
f->sizecode=2*n+1;
f->code=luaM_newvector(L,f->sizecode,Instruction);
for (i=0; i<n; i++)
{
f->p[i]=toproto(L,i-n);
f->code[pc++]=CREATE_ABx(HKS_OPCODE_CLOSURE,0,i);
f->code[pc++]=CREATE_ABC(HKS_OPCODE_CALL,0,1,1);
}
f->code[pc++]=CREATE_ABC(HKS_OPCODE_RETURN,0,1,0);
if (LDS2) {
Inject(f,0);
for (i=0; i<n; i++) {
Inject(f->p[i],i+1);
}
}
return f;
}
}
static Proto* combine(lua_State* L, int scripts) {
if (scripts==1 && preloads==0)
return toproto(L,-1);
else {
TString *s;
TValue *k;
int i,pc,n;
Proto* f=luaF_newproto(L);
setptvalue2s(L,L->top,f); incr_top(L);
f->source=luaS_newliteral(L,"=(" PROGNAME ")");
f->maxstacksize=1;
pc=(2*scripts) + 1;
if(preloads > 0) {
pc+=(2*preloads) + 2;
}
f->code=luaM_newvector(L,pc,Instruction);
f->sizecode=pc;
n=(scripts + preloads);
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
pc=0;
n=0;
/* preload libraries. */
if (preloads > 0) {
/* create constants array. */
f->k=luaM_newvector(L, (preloads + 2),TValue);
f->sizek=(preloads + 2);
/* make room for "local t" variable. */
f->maxstacksize=2;
/* add "package" & "preload" constants. */
k=&(f->k[0]);
s=luaS_newliteral(L, "package");
setsvalue2n(L,k,s);
k=&(f->k[1]);
s=luaS_newliteral(L, "preload");
setsvalue2n(L,k,s);
/* code: local t = package.preload */
f->code[pc++]=CREATE_ABx(OP_GETGLOBAL,0,0);
f->code[pc++]=CREATE_ABC(OP_GETTABLE,0,0,RKASK(1));
}
/* add preload libraries to "package.preload" */
for (i=0; i < preloads; i++) {
/* create constant for library name. */
k=&(f->k[i+2]);
s=luaS_new(L, preload_libs[i]);
setsvalue2n(L,k,s);
/* code: t['name'] = function() --[[ lib code ]] end */
f->code[pc++]=CREATE_ABx(OP_CLOSURE,1,n);
f->code[pc++]=CREATE_ABC(OP_SETTABLE,0,RKASK(i+2),1);
f->p[n++]=toproto(L,i-preloads-1);
}
/* call scripts. */
for (i=0; i < scripts; i++) {
/* code: (function() --[[ script code ]] end)() */
f->code[pc++]=CREATE_ABx(OP_CLOSURE,0,n);
f->code[pc++]=CREATE_ABC(OP_CALL,0,1,1);
f->p[n++]=toproto(L,i-scripts-1-preloads);
}
f->code[pc++]=CREATE_ABC(OP_RETURN,0,1,0);
return f;
}
}
/*
* If the luac command line includes multiple files or has the -f option
* then luac generates a main function to reference all sub-main prototypes.
* This is one of two types:
* Type 0 The standard luac combination main
* Type 1 A lookup wrapper that facilitates indexing into the generated protos
*/
static const Proto* combine(lua_State* L, int n, int type)
{
if (n==1 && type == 0)
return toproto(L,-1);
else
{
int i;
Instruction *pc;
Proto* f=luaF_newproto(L);
setptvalue2s(L,L->top,f); incr_top(L);
f->source=luaS_newliteral(L,"=(" PROGNAME ")");
f->p=luaM_newvector(L,n,Proto*);
f->sizep=n;
for (i=0; i<n; i++)
f->p[i]=toproto(L,i-n-1);
pc=0;
if (type == 0) {
/*
* Type 0 is as per the standard luac, which is just a main routine which
* invokes all of the compiled functions sequentially. This is fine if
* they are self registering modules, but useless otherwise.
*/
f->numparams = 0;
f->maxstacksize = 1;
f->sizecode = 2*n + 1 ;
f->sizek = 0;
f->code = luaM_newvector(L, f->sizecode , Instruction);
f->k = luaM_newvector(L,f->sizek,TValue);
for (i=0, pc = f->code; i<n; i++) {
*pc++ = CREATE_ABx(OP_CLOSURE,0,i);
*pc++ = CREATE_ABC(OP_CALL,0,1,1);
}
*pc++ = CREATE_ABC(OP_RETURN,0,1,0);
} else {
/*
* The Type 1 main() is a lookup which takes a single argument, the name to
* be resolved. If this matches root name of one of the compiled files then
* a closure to this file main is returned. Otherwise the Unixtime of the
* compile and the list of root names is returned.
*/
if (n > LFIELDS_PER_FLUSH) {
#define NO_MOD_ERR_(n) ": Number of modules > " #n
#define NO_MOD_ERR(n) NO_MOD_ERR_(n)
usage(LUA_QL("-f") NO_MOD_ERR(LFIELDS_PER_FLUSH));
}
f->numparams = 1;
f->maxstacksize = n + 3;
f->sizecode = 5*n + 5 ;
f->sizek = n + 1;
f->sizelocvars = 0;
f->code = luaM_newvector(L, f->sizecode , Instruction);
f->k = luaM_newvector(L,f->sizek,TValue);
for (i=0, pc = f->code; i<n; i++)
{
/* if arg1 == FnameA then return function (...) -- funcA -- end end */
setsvalue2n(L,f->k+i,corename(L, f->p[i]->source));
*pc++ = CREATE_ABC(OP_EQ,0,0,RKASK(i));
*pc++ = CREATE_ABx(OP_JMP,0,MAXARG_sBx+2);
*pc++ = CREATE_ABx(OP_CLOSURE,1,i);
*pc++ = CREATE_ABC(OP_RETURN,1,2,0);
}
setnvalue(f->k+n, (lua_Number) time(NULL));
*pc++ = CREATE_ABx(OP_LOADK,1,n);
*pc++ = CREATE_ABC(OP_NEWTABLE,2,luaO_int2fb(i),0);
for (i=0; i<n; i++)
*pc++ = CREATE_ABx(OP_LOADK,i+3,i);
*pc++ = CREATE_ABC(OP_SETLIST,2,i,1);
*pc++ = CREATE_ABC(OP_RETURN,1,3,0);
*pc++ = CREATE_ABC(OP_RETURN,0,1,0);
}
lua_assert((pc-f->code) == f->sizecode);
return f;
}
}
int FuncState::luaK_codeABx (/*FuncState *fs,*/ OpCode o, int a, unsigned int bc) {
lua_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx);
lua_assert(getCMode(o) == OpArgN);
lua_assert(a <= MAXARG_A && bc <= MAXARG_Bx);
return luaK_code(CREATE_ABx(o, a, bc));
}
