optimize codes

nasal_ast.h

@@ -135,7 +135,7 @@ private:
     std::string _str;
     std::vector<nasal_ast> _child;
 public:
-    nasal_ast(const uint32_t l=0,const uint32_t t=ast_null):_line(l),_type(t){}
+    nasal_ast(const uint32_t l=0,const uint32_t t=ast_null):_line(l),_type(t),_num(0){}
     nasal_ast(const nasal_ast&);
     nasal_ast(nasal_ast&&);
     void print(int,bool);
@@ -162,13 +162,12 @@ public:
     inline std::vector<nasal_ast>& child(){return _child;}
 };
 
-nasal_ast::nasal_ast(const nasal_ast& tmp)
+nasal_ast::nasal_ast(const nasal_ast& tmp):
+    _str(tmp._str),_child(tmp._child)
 {
     _line=tmp._line;
     _type=tmp._type;
     _num =tmp._num;
-    _str =tmp._str;
-    _child=tmp._child;
 }
 
 nasal_ast::nasal_ast(nasal_ast&& tmp)

nasal_builtin.h

@@ -88,7 +88,7 @@ nas_native(builtin_platform);
 nas_native(builtin_gc);
 nas_native(builtin_md5);
 
-nasal_ref builtin_err(const char* func_name,std::string info)
+nasal_ref builtin_err(const char* func_name,const std::string info)
 {
     std::cerr<<"[vm] "<<func_name<<": "<<info<<".\n";
     return {vm_none};

nasal_codegen.h

@@ -247,7 +247,7 @@ private:
     void block_gen(const nasal_ast&);
     void ret_gen(const nasal_ast&);
 public:
-    nasal_codegen(nasal_err& e):nerr(e){}
+    nasal_codegen(nasal_err& e):fileindex(0),nerr(e),file(nullptr){}
     void compile(const nasal_parse&,const nasal_import&);
     void print_op(uint32_t);
     void print();

nasal_gc.h

@@ -131,7 +131,7 @@ struct nasal_func
     std::vector<nasal_ref> upvalue;              // closure
     std::unordered_map<std::string,size_t> keys; // parameter name table, size_t begins from 1
 
-    nasal_func():dynpara(-1){}
+    nasal_func():dynpara(-1),entry(0),psize(0),lsize(0){}
     void clear();
 };
 
@@ -151,6 +151,7 @@ struct nasal_obj
 {
     enum obj_type
     {
+        null,
         file=1,
         dir,
         dylib,
@@ -166,7 +167,7 @@ struct nasal_obj
     typedef void (*dest)(void*);
     dest destructor;
 
-    nasal_obj():ptr(nullptr),destructor(nullptr){}
+    nasal_obj():type(obj_type::null),ptr(nullptr),destructor(nullptr){}
     ~nasal_obj(){clear();}
     void clear()
     {

nasal_lexer.h

@@ -93,12 +93,11 @@ struct token
     uint32_t column;
     uint32_t type;
     std::string str;
-    token(uint32_t l=0,uint32_t c=0,uint32_t t=tok_null,std::string s="")
+    token(uint32_t l=0,uint32_t c=0,uint32_t t=tok_null,const std::string s=""):str(s)
     {
         line=l;
         column=c;
         type=t;
-        str=s;
     }
 };
 
@@ -119,7 +118,7 @@ private:
     std::string num_gen();
     std::string str_gen();
 public:
-    nasal_lexer(nasal_err& e):nerr(e){}
+    nasal_lexer(nasal_err& e):line(0),column(0),ptr(0),nerr(e){}
     void scan(const std::string&);
     void print();
     const std::vector<token>& get_tokens() const {return tokens;}

nasal_parse.h

@@ -98,7 +98,7 @@ private:
     nasal_ast break_expr();
     nasal_ast ret_expr();
 public:
-    nasal_parse(nasal_err& e):nerr(e){}
+    nasal_parse(nasal_err& e):ptr(0),in_func(0),in_loop(0),tokens(nullptr),nerr(e){}
     void print(){root.print(0);}
     void compile(const nasal_lexer&);
     nasal_ast& ast(){return root;}