From 4fd69c6ce437e89fd586b8ca0346a47d46044c8d Mon Sep 17 00:00:00 2001
From: ValKmjolnir <lhk101lhk101@qq.com>
Date: Sun, 6 Nov 2022 18:20:10 +0800
Subject: [PATCH] :rocket: optimize code

---
 lib.nas               |  11 ++--
 makefile              |  11 ++--
 module/makefile       |  32 +++++-----
 nasal_builtin.h       | 137 ++++++++++++++++++++++++++++++------------
 nasal_dbg.h           |  10 +--
 nasal_gc.h            |  95 +++++++++++++++++++++--------
 stl/lib.nas           |  11 ++--
 test/calc.nas         |   1 +
 test/console3D.nas    |   4 +-
 test/donuts.nas       |  10 +--
 test/md5compare.nas   |   1 +
 test/wavecollapse.nas |   2 +-
 12 files changed, 212 insertions(+), 113 deletions(-)

diff --git a/lib.nas b/lib.nas
index 08a1c4d..0a9db19 100644
--- a/lib.nas
+++ b/lib.nas
@@ -268,13 +268,10 @@ var assert=func(condition,message="assertion failed!"){
 # get time stamp, this will return a timestamp object
 var maketimestamp=func(){
     var t=0;
-    var millisec=func(){
-        return __millisec;
-    }
     return {
-        stamp:func(){t=millisec();},
-        elapsedMSec:func(){return millisec()-t;},
-        elapsedUSec:func(){return (millisec()-t)*1000;}
+        stamp:func(){t=__millisec();},
+        elapsedMSec:func(){return __millisec()-t;},
+        elapsedUSec:func(){return (__millisec()-t)*1000;}
     };
 }
 
@@ -455,7 +452,7 @@ var dylib=
     # close dynamic lib, this operation will make all the symbols loaded from it invalid.
     dlclose: func(lib){return __dlclose;   },
     # call the loaded symbol.
-    dlcall:  func(funcptr,args...){return __dlcall}
+    dlcall:  func(ptr,args...){return __dlcall}
 };
 
 # os is used to use or get some os-related info/functions.
diff --git a/makefile b/makefile
index 2d5252c..d315eb6 100644
--- a/makefile
+++ b/makefile
@@ -15,17 +15,17 @@ SRC=\
 	nasal_dbg.h\
 	nasal.h
 
-STD=14
+STD=c++14
 
 nasal:$(SRC)
-	$(CXX) -std=c++$(STD) -O3 main.cpp -o nasal -fno-exceptions -ldl -Wshadow -Wall
+	$(CXX) -std=$(STD) -O3 main.cpp -o nasal -fno-exceptions -ldl -Wshadow -Wall
 nasal.exe:$(SRC)
-	$(CXX) -std=c++$(STD) -O3 main.cpp -o nasal.exe -fno-exceptions -Wshadow -Wall -static
+	$(CXX) -std=$(STD) -O3 main.cpp -o nasal.exe -fno-exceptions -Wshadow -Wall -static
 
 stable-release:$(SRC)
-	$(CXX) -std=c++$(STD) -O2 main.cpp -o nasal -fno-exceptions -ldl -Wshadow -Wall
+	$(CXX) -std=$(STD) -O2 main.cpp -o nasal -fno-exceptions -ldl -Wshadow -Wall
 stable-release-mingw:$(SRC)
-	$(CXX) -std=c++$(STD) -O2 main.cpp -o nasal.exe -fno-exceptions -Wshadow -Wall -static
+	$(CXX) -std=$(STD) -O2 main.cpp -o nasal.exe -fno-exceptions -Wshadow -Wall -static
 
 clean:
 	-@ rm ./nasal
@@ -42,6 +42,7 @@ test:nasal
 	@ ./nasal -o -d test/calc.nas
 	@ ./nasal -o -e test/choice.nas
 	@ ./nasal -o -e test/class.nas
+	@ ./nasal -o -t -d test/console3D.nas
 	@ ./nasal -o -e test/coroutine.nas
 	@ ./nasal -o -e test/diff.nas
 	@ ./nasal -o -e test/donuts.nas
diff --git a/module/makefile b/module/makefile
index 2359b07..ea14aff 100644
--- a/module/makefile
+++ b/module/makefile
@@ -3,38 +3,38 @@
 dynamic_libs=libfib.so libkey.so libnasock.so
 dynamic_libs_dll=libfib.dll libkey.dll libnasock.dll
 
-STD=14
+STD=c++14
 
 libfib.so: fib.cpp
-	@ echo "[build] libfib.so"
-	@ $(CXX) -std=c++$(STD) -c -O3 fib.cpp -fPIC -o fib.o
+	@ echo "[Compiling] libfib.so"
+	@ $(CXX) -std=$(STD) -c -O3 fib.cpp -fPIC -o fib.o
 	@ $(CXX) -shared -o libfib.so fib.o
 	@ rm fib.o
 libfib.dll: fib.cpp
-	@ echo [build] libfib.dll
-	@ $(CXX) -std=c++$(STD) -c -O3 fib.cpp -fPIC -o fib.o
+	@ echo [Compiling] libfib.dll
+	@ $(CXX) -std=$(STD) -c -O3 fib.cpp -fPIC -o fib.o
 	@ $(CXX) -shared -o libfib.dll fib.o
 	@ del fib.o
 
 libkey.so: keyboard.cpp
-	@ echo "[build] libkey.so"
-	@ $(CXX) -std=c++$(STD) -c -O3 keyboard.cpp -fPIC -o keyboard.o
+	@ echo "[Compiling] libkey.so"
+	@ $(CXX) -std=$(STD) -c -O3 keyboard.cpp -fPIC -o keyboard.o
 	@ $(CXX) -shared -o libkey.so keyboard.o
 	@ rm keyboard.o
 libkey.dll: keyboard.cpp
-	@ echo [build] libkey.dll
-	@ $(CXX) -std=c++$(STD) -c -O3 keyboard.cpp -fPIC -o keyboard.o -static
+	@ echo [Compiling] libkey.dll
+	@ $(CXX) -std=$(STD) -c -O3 keyboard.cpp -fPIC -o keyboard.o -static
 	@ $(CXX) -shared -o libkey.dll keyboard.o -static
 	@ del keyboard.o
 
 libnasock.so: nasocket.cpp
-	@ echo "[build] libnasock.so"
-	@ $(CXX) -std=c++$(STD) -c -O3 nasocket.cpp -fPIC -o nasocket.o
+	@ echo "[Compiling] libnasock.so"
+	@ $(CXX) -std=$(STD) -c -O3 nasocket.cpp -fPIC -o nasocket.o
 	@ $(CXX) -shared -o libnasock.so nasocket.o
 	@ rm nasocket.o
 libnasock.dll: nasocket.cpp
-	@ echo [build] libnasock.dll
-	@ $(CXX) -std=c++$(STD) -c -O3 nasocket.cpp -fPIC -o nasocket.o -lwsock32 -static
+	@ echo [Compiling] libnasock.dll
+	@ $(CXX) -std=$(STD) -c -O3 nasocket.cpp -fPIC -o nasocket.o -lwsock32 -static
 	@ $(CXX) -shared -o libnasock.dll nasocket.o -lwsock32 -static
 	@ del nasocket.o
 
@@ -45,6 +45,6 @@ clean:
 	-@ rm $(dynamic_libs_dll)
 
 all: libfib.so libkey.so libnasock.so
-	@ echo "[build] done"
-mingw-all: libfib.dll libkey.dll libnasock.dll
-	@ echo [build] done
+	@ echo "[Compiling] done"
+winall: libfib.dll libkey.dll libnasock.dll
+	@ echo [Compiling] done
diff --git a/nasal_builtin.h b/nasal_builtin.h
index 57ac3ae..62bb22c 100644
--- a/nasal_builtin.h
+++ b/nasal_builtin.h
@@ -37,6 +37,7 @@ var builtin_print(var* local,gc& ngc)
     std::cout<<std::flush;
     return nil;
 }
+
 var builtin_println(var* local,gc& ngc)
 {
     for(auto& i:local[1].vec().elems)
@@ -44,16 +45,19 @@ var builtin_println(var* local,gc& ngc)
     std::cout<<std::endl;
     return nil;
 }
+
 var builtin_exit(var* local,gc& ngc)
 {
     std::exit(local[1].num());
     return nil;
 }
+
 var builtin_abort(var* local,gc& ngc)
 {
     std::abort();
     return nil;
 }
+
 var builtin_append(var* local,gc& ngc)
 {
     var vec=local[1];
@@ -65,6 +69,7 @@ var builtin_append(var* local,gc& ngc)
         v.push_back(i);
     return nil;
 }
+
 var builtin_setsize(var* local,gc& ngc)
 {
     var vec=local[1];
@@ -76,6 +81,7 @@ var builtin_setsize(var* local,gc& ngc)
     vec.vec().elems.resize((i64)size.num(),nil);
     return nil;
 }
+
 var builtin_system(var* local,gc& ngc)
 {
     var str=local[1];
@@ -83,6 +89,7 @@ var builtin_system(var* local,gc& ngc)
         return {vm_num,(f64)-1};
     return {vm_num,(f64)system(str.str().c_str())};
 }
+
 var builtin_input(var* local,gc& ngc)
 {
     var end=local[1];
@@ -93,6 +100,7 @@ var builtin_input(var* local,gc& ngc)
         std::getline(std::cin,ret.str(),end.str()[0]);
     return ret;
 }
+
 var builtin_fin(var* local,gc& ngc)
 {
     var val=local[1];
@@ -104,6 +112,7 @@ var builtin_fin(var* local,gc& ngc)
         rd<<in.rdbuf();
     return ngc.newstr(rd.str());
 }
+
 var builtin_fout(var* local,gc& ngc)
 {
     var val=local[1];
@@ -116,6 +125,7 @@ var builtin_fout(var* local,gc& ngc)
     out<<str;
     return nil;
 }
+
 var builtin_split(var* local,gc& ngc)
 {
     var delimeter=local[1];
@@ -151,6 +161,7 @@ var builtin_split(var* local,gc& ngc)
     ngc.temp=nil;
     return res;
 }
+
 var builtin_rand(var* local,gc& ngc)
 {
     var val=local[1];
@@ -166,6 +177,7 @@ var builtin_rand(var* local,gc& ngc)
         num=(num+rand())*(1.0/(RAND_MAX+1.0));
     return {vm_num,num};
 }
+
 var builtin_id(var* local,gc& ngc)
 {
     var val=local[1];
@@ -175,6 +187,7 @@ var builtin_id(var* local,gc& ngc)
         ss<<"x"<<std::hex<<(u64)val.val.gcobj<<std::dec;
     return ngc.newstr(ss.str());
 }
+
 var builtin_int(var* local,gc& ngc)
 {
     var val=local[1];
@@ -182,11 +195,13 @@ var builtin_int(var* local,gc& ngc)
         return nil;
     return {vm_num,f64((i32)val.tonum())};
 }
+
 var builtin_floor(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,std::floor(val.num())};
 }
+
 var builtin_num(var* local,gc& ngc)
 {
     var val=local[1];
@@ -199,6 +214,7 @@ var builtin_num(var* local,gc& ngc)
         return nil;
     return {vm_num,res};
 }
+
 var builtin_pop(var* local,gc& ngc)
 {
     var val=local[1];
@@ -213,10 +229,12 @@ var builtin_pop(var* local,gc& ngc)
     }
     return nil;
 }
+
 var builtin_str(var* local,gc& ngc)
 {
     return ngc.newstr(local[1].tostr());
 }
+
 var builtin_size(var* local,gc& ngc)
 {
     var val=local[1];
@@ -230,46 +248,57 @@ var builtin_size(var* local,gc& ngc)
     }
     return {vm_num,num};
 }
+
 var builtin_i32xor(var* local,gc& ngc)
 {
     return {vm_num,(f64)(i32(local[1].num())^i32(local[2].num()))};
 }
+
 var builtin_i32and(var* local,gc& ngc)
 {
     return {vm_num,(f64)(i32(local[1].num())&i32(local[2].num()))};
 }
+
 var builtin_i32or(var* local,gc& ngc)
 {
     return {vm_num,(f64)(i32(local[1].num())|i32(local[2].num()))};
 }
+
 var builtin_i32nand(var* local,gc& ngc)
 {
     return {vm_num,(f64)(~(i32(local[1].num())&i32(local[2].num())))};
 }
+
 var builtin_i32not(var* local,gc& ngc)
 {
     return {vm_num,(f64)(~i32(local[1].num()))};
 }
+
 var builtin_u32xor(var* local,gc& ngc)
 {
     return {vm_num,(f64)(u32(local[1].num())^u32(local[2].num()))};
 }
+
 var builtin_u32and(var* local,gc& ngc)
 {
     return {vm_num,(f64)(u32(local[1].num())&u32(local[2].num()))};
 }
+
 var builtin_u32or(var* local,gc& ngc)
 {
     return {vm_num,(f64)(u32(local[1].num())|u32(local[2].num()))};
 }
+
 var builtin_u32nand(var* local,gc& ngc)
 {
     return {vm_num,(f64)(u32)(~(u32(local[1].num())&u32(local[2].num())))};
 }
+
 var builtin_u32not(var* local,gc& ngc)
 {
     return {vm_num,(f64)(u32)(~u32(local[1].num()))};
 }
+
 var builtin_pow(var* local,gc& ngc)
 {
     var x=local[1];
@@ -278,41 +307,49 @@ var builtin_pow(var* local,gc& ngc)
         return {vm_num,std::nan("")};
     return {vm_num,std::pow(x.num(),y.num())};
 }
+
 var builtin_sin(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,val.type==vm_num?sin(val.num()):std::nan("")};
 }
+
 var builtin_cos(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,val.type==vm_num?cos(val.num()):std::nan("")};
 }
+
 var builtin_tan(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,val.type==vm_num?tan(val.num()):std::nan("")};
 }
+
 var builtin_exp(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,val.type==vm_num?exp(val.num()):std::nan("")};
 }
+
 var builtin_lg(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,val.type==vm_num?log(val.num())/log(10.0):std::nan("")};
 }
+
 var builtin_ln(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,val.type==vm_num?log(val.num()):std::nan("")};
 }
+
 var builtin_sqrt(var* local,gc& ngc)
 {
     var val=local[1];
     return {vm_num,val.type==vm_num?sqrt(val.num()):std::nan("")};
 }
+
 var builtin_atan2(var* local,gc& ngc)
 {
     var x=local[1];
@@ -321,11 +358,13 @@ var builtin_atan2(var* local,gc& ngc)
         return {vm_num,std::nan("")};
     return {vm_num,atan2(y.num(),x.num())};
 }
+
 var builtin_isnan(var* local,gc& ngc)
 {
     var x=local[1];
     return (x.type==vm_num && std::isnan(x.num()))?one:zero;
 }
+
 var builtin_time(var* local,gc& ngc)
 {
     var val=local[1];
@@ -334,6 +373,7 @@ var builtin_time(var* local,gc& ngc)
     time_t begin=(time_t)val.num();
     return {vm_num,(f64)time(&begin)};
 }
+
 var builtin_contains(var* local,gc& ngc)
 {
     var hash=local[1];
@@ -342,6 +382,7 @@ var builtin_contains(var* local,gc& ngc)
         return zero;
     return hash.hash().elems.count(key.str())?one:zero;
 }
+
 var builtin_delete(var* local,gc& ngc)
 {
     var hash=local[1];
@@ -354,6 +395,7 @@ var builtin_delete(var* local,gc& ngc)
         hash.hash().elems.erase(key.str());
     return nil;
 }
+
 var builtin_keys(var* local,gc& ngc)
 {
     var hash=local[1];
@@ -367,10 +409,12 @@ var builtin_keys(var* local,gc& ngc)
     ngc.temp=nil;
     return res;
 }
+
 var builtin_die(var* local,gc& ngc)
 {
     return nas_err("error",local[1].tostr());
 }
+
 var builtin_find(var* local,gc& ngc)
 {
     var needle=local[1];
@@ -380,6 +424,7 @@ var builtin_find(var* local,gc& ngc)
         return {vm_num,(f64)-1};
     return {vm_num,(f64)pos};
 }
+
 var builtin_type(var* local,gc& ngc)
 {
     switch(local[1].type)
@@ -396,6 +441,7 @@ var builtin_type(var* local,gc& ngc)
     }
     return nil;
 }
+
 var builtin_substr(var* local,gc& ngc)
 {
     var str=local[1];
@@ -413,12 +459,14 @@ var builtin_substr(var* local,gc& ngc)
         return nas_err("susbtr","index out of range");
     return ngc.newstr(str.str().substr(begin,length));
 }
+
 var builtin_streq(var* local,gc& ngc)
 {
     var a=local[1];
     var b=local[2];
     return {vm_num,f64((a.type!=vm_str || b.type!=vm_str)?0:(a.str()==b.str()))};
 }
+
 var builtin_left(var* local,gc& ngc)
 {
     var str=local[1];
@@ -431,6 +479,7 @@ var builtin_left(var* local,gc& ngc)
         return ngc.newstr("");
     return ngc.newstr(str.str().substr(0,len.num()));
 }
+
 var builtin_right(var* local,gc& ngc)
 {
     var str=local[1];
@@ -447,6 +496,7 @@ var builtin_right(var* local,gc& ngc)
         length=0;
     return ngc.newstr(str.str().substr(srclen-length,srclen));
 }
+
 var builtin_cmp(var* local,gc& ngc)
 {
     var a=local[1];
@@ -455,6 +505,7 @@ var builtin_cmp(var* local,gc& ngc)
         return nas_err("cmp","\"a\" and \"b\" must be string");
     return {vm_num,(f64)strcmp(a.str().c_str(),b.str().c_str())};
 }
+
 var builtin_chr(var* local,gc& ngc)
 {
     const char* extend[]={
@@ -482,6 +533,7 @@ var builtin_chr(var* local,gc& ngc)
         return ngc.newstr(extend[num-128]);
     return ngc.newstr(" ");
 }
+
 var builtin_values(var* local,gc& ngc)
 {
     var hash=local[1];
@@ -493,16 +545,14 @@ var builtin_values(var* local,gc& ngc)
         v.push_back(i.second);
     return vec;
 }
+
 var builtin_exists(var* local,gc& ngc)
 {
     if(local[1].type!=vm_str)
         return zero;
     return access(local[1].str().c_str(),F_OK)!=-1?one:zero;
 }
-void obj_file_dtor(void* ptr)
-{
-    fclose((FILE*)ptr);
-}
+
 var builtin_open(var* local,gc& ngc)
 {
     var name=local[1];
@@ -515,18 +565,19 @@ var builtin_open(var* local,gc& ngc)
     if(!res)
         return nas_err("open","failed to open file <"+name.str()+">");
     var ret=ngc.alloc(vm_obj);
-    ret.obj().set(nas_obj::file,res,obj_file_dtor);
+    ret.obj().set(nas_obj::file,res);
     return ret;
 }
+
 var builtin_close(var* local,gc& ngc)
 {
     var fd=local[1];
     if(!fd.objchk(nas_obj::file))
         return nas_err("close","not a valid filehandle");
-    fclose((FILE*)fd.obj().ptr);
-    fd.obj().ptr=nullptr;
+    fd.obj().clear();
     return nil;
 }
+
 var builtin_read(var* local,gc& ngc)
 {
     var fd=local[1];
@@ -549,6 +600,7 @@ var builtin_read(var* local,gc& ngc)
     delete []buff;
     return {vm_num,res};
 }
+
 var builtin_write(var* local,gc& ngc)
 {
     var fd=local[1];
@@ -559,6 +611,7 @@ var builtin_write(var* local,gc& ngc)
         return nas_err("write","\"str\" must be string");
     return {vm_num,(f64)fwrite(str.str().c_str(),1,str.str().length(),(FILE*)fd.obj().ptr)};
 }
+
 var builtin_seek(var* local,gc& ngc)
 {
     var fd=local[1];
@@ -568,6 +621,7 @@ var builtin_seek(var* local,gc& ngc)
         return nas_err("seek","not a valid filehandle");
     return {vm_num,(f64)fseek((FILE*)fd.obj().ptr,pos.num(),whence.num())};
 }
+
 var builtin_tell(var* local,gc& ngc)
 {
     var fd=local[1];
@@ -575,6 +629,7 @@ var builtin_tell(var* local,gc& ngc)
         return nas_err("tell","not a valid filehandle");
     return {vm_num,(f64)ftell((FILE*)fd.obj().ptr)};
 }
+
 var builtin_readln(var* local,gc& ngc)
 {
     var fd=local[1];
@@ -594,6 +649,7 @@ var builtin_readln(var* local,gc& ngc)
         return str;
     return nil;
 }
+
 var builtin_stat(var* local,gc& ngc)
 {
     var name=local[1];
@@ -618,6 +674,7 @@ var builtin_stat(var* local,gc& ngc)
     };
     return ret;
 }
+
 var builtin_eof(var* local,gc& ngc)
 {
     var fd=local[1];
@@ -625,6 +682,7 @@ var builtin_eof(var* local,gc& ngc)
         return nas_err("readln","not a valid filehandle");
     return {vm_num,(f64)feof((FILE*)fd.obj().ptr)};
 }
+
 var builtin_fld(var* local,gc& ngc)
 {
     // bits.fld(s,0,3);
@@ -648,6 +706,7 @@ var builtin_fld(var* local,gc& ngc)
             res|=1<<(bit+len-i-1);
     return {vm_num,(f64)res};
 }
+
 var builtin_sfld(var* local,gc& ngc)
 {
     // bits.sfld(s,0,3);
@@ -674,6 +733,7 @@ var builtin_sfld(var* local,gc& ngc)
         res|=~((1<<len)-1);
     return {vm_num,(f64)((i32)res)};
 }
+
 var builtin_setfld(var* local,gc& ngc)
 {
     // bits.setfld(s,0,8,69);
@@ -703,6 +763,7 @@ var builtin_setfld(var* local,gc& ngc)
     }
     return nil;
 }
+
 var builtin_buf(var* local,gc& ngc)
 {
     var length=local[1];
@@ -713,14 +774,16 @@ var builtin_buf(var* local,gc& ngc)
     s.resize(length.num(),'\0');
     return str;
 }
+
 var builtin_sleep(var* local,gc& ngc)
 {
     var val=local[1];
     if(val.type!=vm_num)
-        return nas_err("sleep","\"duration\" must be number");
+        return nil;
     std::this_thread::sleep_for(std::chrono::microseconds(i64(val.num()*1e6)));
     return nil;
 }
+
 var builtin_pipe(var* local,gc& ngc)
 {
 #ifndef _WIN32
@@ -734,6 +797,7 @@ var builtin_pipe(var* local,gc& ngc)
 #endif
     return nas_err("pipe","not supported");
 }
+
 var builtin_fork(var* local,gc& ngc)
 {
 #ifndef _WIN32
@@ -744,6 +808,7 @@ var builtin_fork(var* local,gc& ngc)
 #endif
     return nas_err("fork","not supported");
 }
+
 var builtin_waitpid(var* local,gc& ngc)
 {
     var pid=local[1];
@@ -760,14 +825,7 @@ var builtin_waitpid(var* local,gc& ngc)
 #endif
     return nas_err("waitpid","not supported");
 }
-void obj_dir_dtor(void* ptr)
-{
-#ifndef _MSC_VER
-    closedir((DIR*)ptr);
-#else
-    FindClose(ptr);
-#endif
-}
+
 var builtin_opendir(var* local,gc& ngc)
 {
     var path=local[1];
@@ -785,9 +843,10 @@ var builtin_opendir(var* local,gc& ngc)
         return nas_err("opendir","cannot open dir <"+path.str()+">");
 #endif
     var ret=ngc.alloc(vm_obj);
-    ret.obj().set(nas_obj::dir,p,obj_dir_dtor);
+    ret.obj().set(nas_obj::dir,p);
     return ret;
 }
+
 var builtin_readdir(var* local,gc& ngc)
 {
     var handle=local[1];
@@ -803,19 +862,16 @@ var builtin_readdir(var* local,gc& ngc)
     return p?ngc.newstr(p->d_name):nil;
 #endif
 }
+
 var builtin_closedir(var* local,gc& ngc)
 {
     var handle=local[1];
     if(!handle.objchk(nas_obj::dir))
         return nas_err("closedir","not a valid dir handle");
-#ifndef _MSC_VER
-    closedir((DIR*)handle.obj().ptr);
-#else
-    FindClose(handle.obj().ptr);
-#endif
-    handle.obj().ptr=nullptr;
+    handle.obj().clear();
     return nil;
 }
+
 var builtin_chdir(var* local,gc& ngc)
 {
     var path=local[1];
@@ -823,6 +879,7 @@ var builtin_chdir(var* local,gc& ngc)
         return {vm_num,(f64)-1};
     return {vm_num,(f64)chdir(path.str().c_str())};
 }
+
 var builtin_environ(var* local,gc& ngc)
 {
     var res=ngc.temp=ngc.alloc(vm_vec);
@@ -832,6 +889,7 @@ var builtin_environ(var* local,gc& ngc)
     ngc.temp=nil;
     return res;
 }
+
 var builtin_getcwd(var* local,gc& ngc)
 {
     char buf[1024];
@@ -839,6 +897,7 @@ var builtin_getcwd(var* local,gc& ngc)
         return nil;
     return ngc.newstr(buf);
 }
+
 var builtin_getenv(var* local,gc& ngc)
 {
     var envvar=local[1];
@@ -847,14 +906,7 @@ var builtin_getenv(var* local,gc& ngc)
     char* res=getenv(envvar.str().c_str());
     return res?ngc.newstr(res):nil;
 }
-void dylib_dtor(void* ptr)
-{
-#ifdef _WIN32
-    FreeLibrary((HMODULE)ptr);
-#else
-    dlclose(ptr);
-#endif
-}
+
 var builtin_dlopen(var* local,gc& ngc)
 {
     var dlname=local[1];
@@ -874,9 +926,10 @@ var builtin_dlopen(var* local,gc& ngc)
     if(!ptr)
         return nas_err("dlopen","cannot open dynamic lib <"+dlname.str()+">");
     var ret=ngc.alloc(vm_obj);
-    ret.obj().set(nas_obj::dylib,ptr,dylib_dtor);
+    ret.obj().set(nas_obj::dylib,ptr);
     return ret;
 }
+
 var builtin_dlsym(var* local,gc& ngc)
 {
     var lib=local[1];
@@ -901,25 +954,22 @@ var builtin_dlsym(var* local,gc& ngc)
     ret.obj().set(nas_obj::faddr,ptr);
     return ret;
 }
+
 var builtin_dlclose(var* local,gc& ngc)
 {
     var libptr=local[1];
     if(!libptr.objchk(nas_obj::dylib))
         return nas_err("dlclose","\"lib\" is not a valid dynamic lib");
-#ifdef _WIN32
-    FreeLibrary((HMODULE)libptr.obj().ptr);
-#else
-    dlclose(libptr.obj().ptr);
-#endif
-    libptr.obj().ptr=nullptr;
+    libptr.obj().clear();
     return nil;
 }
+
 var builtin_dlcall(var* local,gc& ngc)
 {
     var fp=local[1];
     var args=local[2];
     if(!fp.objchk(nas_obj::faddr))
-        return nas_err("dlcall","\"funcptr\" is not a valid function pointer");
+        return nas_err("dlcall","\"ptr\" is not a valid function pointer");
     auto& vec=args.vec().elems;
     return ((mod)fp.obj().ptr)(vec.data(),vec.size(),&ngc);
 }
@@ -950,6 +1000,7 @@ string tohex(u32 num)
     }
     return str;
 }
+
 string md5(const string& src)
 {
     std::vector<u32> buff;
@@ -1020,6 +1071,7 @@ string md5(const string& src)
     }
     return tohex(atmp)+tohex(btmp)+tohex(ctmp)+tohex(dtmp);
 }
+
 var builtin_md5(var* local,gc& ngc)
 {
     var str=local[1];
@@ -1066,6 +1118,7 @@ var builtin_cocreate(var* local,gc& ngc)
     
     return co;
 }
+
 var builtin_coresume(var* local,gc& ngc)
 {
     if(ngc.cort)
@@ -1078,6 +1131,7 @@ var builtin_coresume(var* local,gc& ngc)
     ngc.ctxchg(co.co());
     return ngc.top[0];
 }
+
 var builtin_coyield(var* local,gc& ngc)
 {
     if(!ngc.cort)
@@ -1087,6 +1141,7 @@ var builtin_coyield(var* local,gc& ngc)
     // then builtin_coresume will return it
     return local[1];
 }
+
 var builtin_costatus(var* local,gc& ngc)
 {
     var co=local[1];
@@ -1100,10 +1155,12 @@ var builtin_costatus(var* local,gc& ngc)
     }
     return nil;
 }
+
 var builtin_corun(var* local,gc& ngc)
 {
     return ngc.cort?one:zero;
 }
+
 var builtin_millisec(var* local,gc& ngc)
 {
     f64 res=std::chrono::duration_cast<std::chrono::milliseconds>
@@ -1111,12 +1168,14 @@ var builtin_millisec(var* local,gc& ngc)
             .count();
     return {vm_num,res};
 }
+
 var builtin_sysargv(var* local,gc& ngc)
 {
     var res=ngc.alloc(vm_vec);
     res.vec().elems=ngc.env_argv;
     return res;
 }
+
 var builtin_logtime(var* local,gc& ngc)
 {
     time_t t=time(nullptr);
diff --git a/nasal_dbg.h b/nasal_dbg.h
index c721139..8227835 100644
--- a/nasal_dbg.h
+++ b/nasal_dbg.h
@@ -95,19 +95,15 @@ void debugger::callsort(const u64* arr)
     std::sort(opcall.begin(),opcall.end(),
         [](const op& a,const op& b){return a.second>b.second;}
     );
-    std::clog<<"\noperands call info";
+    std::clog<<"\noperands call info (<1% ignored)\n";
     for(auto& i:opcall)
     {
         u64 rate=i.second*100/total;
         if(!rate)
-        {
-            std::clog<<"\n ...";
             break;
-        }
-        std::clog<<"\n "<<opname[i.first]
-                 <<" : "<<i.second<<" ("<<rate<<"%)";
+        std::clog<<" "<<opname[i.first]<<" : "<<i.second<<" ("<<rate<<"%)\n";
     }
-    std::clog<<"\n total  : "<<total<<'\n';
+    std::clog<<" total  : "<<total<<'\n';
 }
 
 void debugger::stepinfo()
diff --git a/nasal_gc.h b/nasal_gc.h
index 7acaa63..d127f64 100644
--- a/nasal_gc.h
+++ b/nasal_gc.h
@@ -1,5 +1,20 @@
 #pragma once
 
+#ifndef _MSC_VER
+#include <unistd.h>
+#include <dirent.h>
+#else
+#include <io.h>
+#include <direct.h>
+#endif
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <dlfcn.h>
+#endif
+
+#include <iomanip>
 #include <vector>
 #include <queue>
 #include <unordered_map>
@@ -156,8 +171,7 @@ struct nas_obj
 {
     enum obj_t:u32
     {
-        null,
-        file,
+        file=1,
         dir,
         dylib,
         faddr
@@ -166,25 +180,47 @@ struct nas_obj
     /* new object is initialized when creating */
     u32 type;
     void* ptr;
-    /* RAII destroyer */
-    /* default destroyer does nothing */
-    typedef void (*dest)(void*);
-    dest dtor;
-
-    nas_obj():type(obj_t::null),ptr(nullptr),dtor(nullptr){}
+private:
+    void obj_file_dtor()
+    {
+        fclose((FILE*)ptr);
+    }
+    void obj_dir_dtor()
+    {
+#ifndef _MSC_VER
+        closedir((DIR*)ptr);
+#else
+        FindClose(ptr);
+#endif
+    }
+    void dylib_dtor()
+    {
+#ifdef _WIN32
+        FreeLibrary((HMODULE)ptr);
+#else
+        dlclose(ptr);
+#endif
+    }
+public:
+    nas_obj():type(0),ptr(nullptr){}
     ~nas_obj(){clear();}
-    void set(u32 t=obj_t::null,void* p=nullptr,dest d=nullptr)
+    void set(u32 t=0,void* p=nullptr)
     {
         type=t;
         ptr=p;
-        dtor=d;
     }
     void clear()
     {
-        if(dtor && ptr)
-            dtor(ptr);
+        if(!ptr)
+            return;
+        switch(type)
+        {
+            case obj_t::file:  obj_file_dtor();break;
+            case obj_t::dir:   obj_dir_dtor(); break;
+            case obj_t::dylib: dylib_dtor();   break;
+            default: break;
+        }
         ptr=nullptr;
-        dtor=nullptr;
     }
 };
 
@@ -481,7 +517,7 @@ struct gc
 
     /* values for analysis */
     u64 size[gc_tsize];
-    u64 count[gc_tsize];
+    u64 gcnt[gc_tsize];
     u64 acnt[gc_tsize];
     i64 worktime;
 
@@ -580,7 +616,7 @@ void gc::init(const std::vector<string>& s,const std::vector<string>& argv)
     worktime=0;
 
     for(u8 i=0;i<gc_tsize;++i)
-        size[i]=count[i]=acnt[i]=0;
+        size[i]=gcnt[i]=acnt[i]=0;
     for(u8 i=0;i<gc_tsize;++i)
         for(u32 j=0;j<ini[i];++j)
         {
@@ -621,16 +657,27 @@ void gc::clear()
 }
 void gc::info()
 {
-    const char* name[]={"  str","  vec"," hash"," func","upval","  obj","   co"};
-    std::cout<<"\ngarbage collector info(gc/alloc)\n";
+    const char* name[]={"str  ","vec  ","hash ","func ","upval","obj  ","co   "};
+    std::cout<<"\ngarbage collector info (gc count|alloc count|memory size)\n";
+    u32 maxlen=0;
     for(u8 i=0;i<gc_tsize;++i)
-        if(count[i] || acnt[i])
-            std::cout<<" "<<name[i]<<" | "<<count[i]<<","<<acnt[i]<<"\n";
-    std::cout<<"  time | "<<(worktime*1.0/1000000000)<<"s\n";
-    std::cout<<"\nmemory allocator info(max size)\n";
+    {
+        u32 len=std::to_string(gcnt[i]).length();
+        maxlen=maxlen<len?len:maxlen;
+        len=std::to_string(acnt[i]).length();
+        maxlen=maxlen<len?len:maxlen;
+        len=std::to_string(ini[i]+size[i]*incr[i]).length();
+        maxlen=maxlen<len?len:maxlen;
+    }
     for(u8 i=0;i<gc_tsize;++i)
-        if(ini[i] || size[i])
-            std::cout<<" "<<name[i]<<" | "<<ini[i]+size[i]*incr[i]<<" (+"<<size[i]<<")\n";
+        if(gcnt[i] || acnt[i] || ini[i] || size[i])
+        {
+            std::cout<<" "<<name[i]<<" | "<<std::left<<std::setw(maxlen)<<std::setfill(' ')<<gcnt[i];
+            std::cout<<" | "<<std::left<<std::setw(maxlen)<<std::setfill(' ')<<acnt[i];
+            std::cout<<" | "<<std::left<<std::setw(maxlen)<<std::setfill(' ')<<ini[i]+size[i]*incr[i]<<" (+"<<size[i]<<")\n";
+        }
+    double t=worktime*1.0/1000000000;
+    std::cout<<" time  | "<<(t<0.1? t*1000:t)<<(t<0.1? "ms\n":"s\n");
 }
 var gc::alloc(u8 type)
 {
@@ -638,7 +685,7 @@ var gc::alloc(u8 type)
     ++acnt[index];
     if(unused[index].empty())
     {
-        ++count[index];
+        ++gcnt[index];
         auto begin=std::chrono::high_resolution_clock::now();
         mark();
         sweep();
diff --git a/stl/lib.nas b/stl/lib.nas
index 08a1c4d..0a9db19 100644
--- a/stl/lib.nas
+++ b/stl/lib.nas
@@ -268,13 +268,10 @@ var assert=func(condition,message="assertion failed!"){
 # get time stamp, this will return a timestamp object
 var maketimestamp=func(){
     var t=0;
-    var millisec=func(){
-        return __millisec;
-    }
     return {
-        stamp:func(){t=millisec();},
-        elapsedMSec:func(){return millisec()-t;},
-        elapsedUSec:func(){return (millisec()-t)*1000;}
+        stamp:func(){t=__millisec();},
+        elapsedMSec:func(){return __millisec()-t;},
+        elapsedUSec:func(){return (__millisec()-t)*1000;}
     };
 }
 
@@ -455,7 +452,7 @@ var dylib=
     # close dynamic lib, this operation will make all the symbols loaded from it invalid.
     dlclose: func(lib){return __dlclose;   },
     # call the loaded symbol.
-    dlcall:  func(funcptr,args...){return __dlcall}
+    dlcall:  func(ptr,args...){return __dlcall}
 };
 
 # os is used to use or get some os-related info/functions.
diff --git a/test/calc.nas b/test/calc.nas
index 029bb5e..76a08fb 100644
--- a/test/calc.nas
+++ b/test/calc.nas
@@ -44,6 +44,7 @@ var testfile=[
     "calc.nas",
     "choice.nas",
     "class.nas",
+    "console3D.nas",
     "coroutine.nas",
     "diff.nas",
     "donuts.nas",
diff --git a/test/console3D.nas b/test/console3D.nas
index b774f6f..a7bf923 100644
--- a/test/console3D.nas
+++ b/test/console3D.nas
@@ -189,8 +189,8 @@ var main=func() {
                 var rd=vec3norm([2,uv[0],uv[1]]);
                 ro=rotateY(ro,0.25);
                 rd=rotateY(rd,0.25);
-                ro=rotateZ(ro,t*0.025);
-                rd=rotateZ(rd,t*0.025);
+                ro=rotateZ(ro,t*0.03);
+                rd=rotateZ(rd,t*0.03);
                 var diff=1;
                 for (var k=0;k<5;k+=1){
                     var minIt=99999;
diff --git a/test/donuts.nas b/test/donuts.nas
index 6f9f40b..d2bd4b4 100644
--- a/test/donuts.nas
+++ b/test/donuts.nas
@@ -3,6 +3,8 @@ var mod=func(n,a){
 }
 
 var main=func(run_time){
+    var ts=maketimestamp();
+
     var (sin,cos)=(math.sin,math.cos);
     var chars=split("",".,-~:;=!*#$@");
 
@@ -13,6 +15,7 @@ var main=func(run_time){
 
     print("\e[2J");
     for(var run=0;run<run_time;run+=1){
+        ts.stamp();
         forindex(var i;b){
             b[i]=" ";
             z[i]=0;
@@ -41,12 +44,9 @@ var main=func(run_time){
             A+=0.00004;
             B+=0.00002;
         }
+        println(" ",int(1/(ts.elapsedMSec()/1000))," fps  ");
         print(screen);
     }
 }
 
-var frames=5e2;
-var ts=maketimestamp();
-ts.stamp();
-main(frames);
-println(int(frames/(ts.elapsedMSec()/1000))," fps");
\ No newline at end of file
+main(5e2);
\ No newline at end of file
diff --git a/test/md5compare.nas b/test/md5compare.nas
index 2d1ff22..1bb17d9 100644
--- a/test/md5compare.nas
+++ b/test/md5compare.nas
@@ -45,6 +45,7 @@ var filechecksum=func(){
         "./test/bfs.nas",           "./test/bigloop.nas",
         "./test/bp.nas",            "./test/calc.nas",
         "./test/choice.nas",        "./test/class.nas",
+        "./test/console3D.nas",
         "./test/coroutine.nas",     "./test/diff.nas",
         "./test/donuts.nas",
         "./test/exception.nas",     "./test/fib.nas",
diff --git a/test/wavecollapse.nas b/test/wavecollapse.nas
index d91349b..e1abe70 100644
--- a/test/wavecollapse.nas
+++ b/test/wavecollapse.nas
@@ -1,7 +1,6 @@
 # wave collapse function 2022/4/10
 # by ValKmjolnir
 srand();
-var interval=1/160;
 var table=[
     # c ,w,a,s,d
     ["═",0,1,0,1],
@@ -98,6 +97,7 @@ var map=func(){
 if(os.platform()=="windows")
     system("chcp 65001");
 map.new(80);
+var interval=1/160;
 for(var iter=0;iter<100;iter+=1){
     map.print(1);
     map.next();