From b67461882323cd76c435dca021b3908f1a646cf8 Mon Sep 17 00:00:00 2001
From: Valk Richard Li <48872266+ValKmjolnir@users.noreply.github.com>
Date: Sun, 13 Sep 2020 00:27:27 -0700
Subject: [PATCH] update

---
 version3.0/nasal.h         |  3 ++
 version3.0/nasal_builtin.h | 66 ++++++++++++++++++++++++++++++++++
 version3.0/nasal_gc.h      | 72 ++++++++++++++++++++++++++++++++------
 version3.0/nasal_runtime.h | 18 +++++++---
 4 files changed, 145 insertions(+), 14 deletions(-)

diff --git a/version3.0/nasal.h b/version3.0/nasal.h
index ae18326..71212c2 100644
--- a/version3.0/nasal.h
+++ b/version3.0/nasal.h
@@ -1,6 +1,9 @@
 #ifndef __NASAL_H__
 #define __NASAL_H__
 
+
+
+#include <stdlib.h>
 #include <stdio.h>
 #include <iostream>
 #include <fstream>
diff --git a/version3.0/nasal_builtin.h b/version3.0/nasal_builtin.h
index a5d1bcf..9011425 100644
--- a/version3.0/nasal_builtin.h
+++ b/version3.0/nasal_builtin.h
@@ -132,4 +132,70 @@ int nasal_runtime::builtin_setsize(int local_scope_addr)
     return ret_addr;
 }
 
+int nasal_runtime::builtin_system(int local_scope_addr)
+{
+    int str_value_addr=-1;
+    if(local_scope_addr>=0)
+        str_value_addr=nasal_vm.gc_get(local_scope_addr).get_closure().get_value_address("str");
+    if(str_value_addr<0 || nasal_vm.gc_get(str_value_addr).get_type()!=vm_string)
+    {
+        std::cout<<">> [runtime] builtin_system: cannot find values or wrong value type(must be string)."<<std::endl;
+        ++error;
+        return -1;
+    }
+    std::string str=nasal_vm.gc_get(str_value_addr).get_string();
+    int size=str.length();
+    char* command=new char[size+1];
+    for(int i=0;i<size;++i)
+        command[i]=str[i];
+    command[size]='\0';
+    system(command);
+    delete []command;
+    int ret_addr=nasal_vm.gc_alloc();
+    nasal_vm.gc_get(ret_addr).set_type(vm_nil);
+    return ret_addr;
+}
+
+int nasal_runtime::builtin_input(int local_scope_addr)
+{
+    int ret_addr=nasal_vm.gc_alloc();
+    nasal_vm.gc_get(ret_addr).set_type(vm_string);
+    std::string str;
+    std::cin>>str;
+    nasal_vm.gc_get(ret_addr).set_string(str);
+    return ret_addr;
+}
+
+int nasal_runtime::builtin_sleep(int local_scope_addr)
+{
+    int value_addr=-1;
+    if(local_scope_addr>=0)
+        value_addr=nasal_vm.gc_get(local_scope_addr).get_closure().get_value_address("duration");
+    if(value_addr<0 || (nasal_vm.gc_get(value_addr).get_type()!=vm_string && nasal_vm.gc_get(value_addr).get_type()!=vm_number))
+    {
+        std::cout<<">> [runtime] builtin_sleep: cannot find values or wrong value type(must be string or numebr)."<<std::endl;
+        ++error;
+        return -1;
+    }
+    unsigned long sleep_time=0;
+    if(nasal_vm.gc_get(value_addr).get_type()==vm_string)
+    {
+        std::string str=nasal_vm.gc_get(value_addr).get_string();
+        if(check_numerable_string(str))
+            sleep_time=(unsigned long)trans_string_to_number(str);
+        else
+        {
+            std::cout<<">> [runtime] builtin_sleep: this is not a numerable string."<<std::endl;
+            ++error;
+            return -1;
+        }
+    }
+    else
+        sleep_time=(unsigned long)nasal_vm.gc_get(value_addr).get_number();
+    _sleep(sleep_time);
+    int ret_addr=nasal_vm.gc_alloc();
+    nasal_vm.gc_get(ret_addr).set_type(vm_nil);
+    return ret_addr;
+}
+
 #endif
\ No newline at end of file
diff --git a/version3.0/nasal_gc.h b/version3.0/nasal_gc.h
index 25d9ad0..44a1aa2 100644
--- a/version3.0/nasal_gc.h
+++ b/version3.0/nasal_gc.h
@@ -129,12 +129,14 @@ class nasal_virtual_machine
         }
     };
 private:
+    bool error_info_output_switch;
     nasal_scalar error_returned_value;
     std::queue<int> garbage_collector_free_space;
     std::vector<gc_unit*> garbage_collector_memory;
     std::queue<int> memory_manager_free_space;
     std::vector<int*> memory_manager_memory;
 public:
+    nasal_virtual_machine();
     ~nasal_virtual_machine();
     void clear();
     void debug();
@@ -1090,6 +1092,15 @@ int nasal_scalar::nasal_scalar_cmp_not_equal(int a_scalar_addr,int b_scalar_addr
     }
     else if((a_ref.type==vm_number || a_ref.type==vm_string) && (b_ref.type==vm_number || b_ref.type==vm_string))
     {
+        if(a_ref.type==vm_string && b_ref.type==vm_string)
+        {
+            std::string astr=*(std::string*)a_ref.scalar_ptr;
+            std::string bstr=*(std::string*)b_ref.scalar_ptr;
+            int new_value_address=nasal_vm.gc_alloc();
+            nasal_vm.gc_get(new_value_address).set_type(vm_number);
+            nasal_vm.gc_get(new_value_address).set_number((double)(astr!=bstr));
+            return new_value_address;
+        }
         double a_num;
         double b_num;
         if(a_ref.type==vm_number) a_num=*(double*)a_ref.scalar_ptr;
@@ -1306,21 +1317,39 @@ int nasal_scalar::nasal_scalar_cmp_greater_or_equal(int a_scalar_addr,int b_scal
 }
 
 /*functions of nasal_virtual_machine*/
+nasal_virtual_machine::nasal_virtual_machine()
+{
+    error_info_output_switch=true;
+    return;
+}
 nasal_virtual_machine::~nasal_virtual_machine()
 {
+    error_info_output_switch=false;
     int gc_mem_size=garbage_collector_memory.size();
     int mm_mem_size=memory_manager_memory.size();
     for(int i=0;i<gc_mem_size;++i)
-    {
         for(int j=0;j<GC_BLK_SIZE;++j)
             if(garbage_collector_memory[i][j].ref_cnt)
+            {
+                garbage_collector_memory[i][j].ref_cnt=0;
+                garbage_collector_memory[i][j].collected=true;
+            }
+    for(int i=0;i<gc_mem_size;++i)
+    {
+        for(int j=0;j<GC_BLK_SIZE;++j)
+            if(garbage_collector_memory[i][j].elem.get_type()!=vm_nil)
                 garbage_collector_memory[i][j].elem.clear();
         delete []garbage_collector_memory[i];
     }
     for(int i=0;i<mm_mem_size;++i)
         delete []memory_manager_memory[i];
+    while(!garbage_collector_free_space.empty())
+        garbage_collector_free_space.pop();
+    while(!memory_manager_free_space.empty())
+        memory_manager_free_space.pop();
     garbage_collector_memory.clear();
     memory_manager_memory.clear();
+    error_info_output_switch=true;
     return;
 }
 void nasal_virtual_machine::debug()
@@ -1348,12 +1377,20 @@ void nasal_virtual_machine::debug()
 }
 void nasal_virtual_machine::clear()
 {
+    error_info_output_switch=false;
     int gc_mem_size=garbage_collector_memory.size();
     int mm_mem_size=memory_manager_memory.size();
     for(int i=0;i<gc_mem_size;++i)
-    {
         for(int j=0;j<GC_BLK_SIZE;++j)
             if(garbage_collector_memory[i][j].ref_cnt)
+            {
+                garbage_collector_memory[i][j].ref_cnt=0;
+                garbage_collector_memory[i][j].collected=true;
+            }
+    for(int i=0;i<gc_mem_size;++i)
+    {
+        for(int j=0;j<GC_BLK_SIZE;++j)
+            if(garbage_collector_memory[i][j].elem.get_type()!=vm_nil)
                 garbage_collector_memory[i][j].elem.clear();
         delete []garbage_collector_memory[i];
     }
@@ -1365,6 +1402,7 @@ void nasal_virtual_machine::clear()
         memory_manager_free_space.pop();
     garbage_collector_memory.clear();
     memory_manager_memory.clear();
+    error_info_output_switch=true;
     return;
 }
 int nasal_virtual_machine::gc_alloc()
@@ -1391,7 +1429,8 @@ nasal_scalar& nasal_virtual_machine::gc_get(int value_address)
         return garbage_collector_memory[blk_num][blk_plc].elem;
     else
     {
-        std::cout<<">> [vm] gc_get:unexpected memory \'"<<value_address<<"\'."<<std::endl;
+        if(error_info_output_switch)
+            std::cout<<">> [vm] gc_get:unexpected memory \'"<<value_address<<"\'."<<std::endl;
         return error_returned_value;
     }
 }
@@ -1402,7 +1441,10 @@ void nasal_virtual_machine::add_reference(int value_address)
     if(0<=value_address && value_address<(garbage_collector_memory.size()<<8) && !garbage_collector_memory[blk_num][blk_plc].collected)
         ++garbage_collector_memory[blk_num][blk_plc].ref_cnt;
     else
-        std::cout<<">> [vm] gc_add_ref:unexpected memory \'"<<value_address<<"\'."<<std::endl;
+    {
+        if(error_info_output_switch)
+            std::cout<<">> [vm] gc_add_ref:unexpected memory \'"<<value_address<<"\'."<<std::endl;
+    }
     return;
 }
 void nasal_virtual_machine::del_reference(int value_address)
@@ -1413,7 +1455,8 @@ void nasal_virtual_machine::del_reference(int value_address)
         --garbage_collector_memory[blk_num][blk_plc].ref_cnt;
     else
     {
-        std::cout<<">> [vm] gc_del_ref:unexpected memory \'"<<value_address<<"\'."<<std::endl;
+        if(error_info_output_switch)
+            std::cout<<">> [vm] gc_del_ref:unexpected memory \'"<<value_address<<"\'."<<std::endl;
         return;
     }
     if(!garbage_collector_memory[blk_num][blk_plc].ref_cnt)
@@ -1431,7 +1474,10 @@ int nasal_virtual_machine::get_refcnt(int value_address)
     if(0<=value_address && value_address<(garbage_collector_memory.size()<<8) && !garbage_collector_memory[blk_num][blk_plc].collected)
         return garbage_collector_memory[blk_num][blk_plc].ref_cnt;
     else
-        std::cout<<">> [vm] get_refcnt:unexpected memory \'"<<value_address<<"\'."<<std::endl;
+    {
+        if(error_info_output_switch)
+            std::cout<<">> [vm] get_refcnt:unexpected memory \'"<<value_address<<"\'."<<std::endl;
+    }
     return -1;
 }
 int nasal_virtual_machine::mem_alloc()
@@ -1459,7 +1505,8 @@ int nasal_virtual_machine::mem_free(int memory_address)
     }
     else
     {
-        std::cout<<">> [vm] mem_free:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
+        if(error_info_output_switch)
+            std::cout<<">> [vm] mem_free:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
         return 0;
     }
     return 1;
@@ -1475,7 +1522,8 @@ int nasal_virtual_machine::mem_change(int memory_address,int value_address)
     }
     else
     {
-        std::cout<<">> [vm] mem_store:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
+        if(error_info_output_switch)
+            std::cout<<">> [vm] mem_store:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
         return 0;
     }
     return 1;
@@ -1488,7 +1536,8 @@ int nasal_virtual_machine::mem_init(int memory_address,int value_address)
         memory_manager_memory[memory_address>>8][memory_address&0xff]=value_address;
     else
     {
-        std::cout<<">> [vm] mem_store:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
+        if(error_info_output_switch)
+            std::cout<<">> [vm] mem_store:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
         return 0;
     }
     return 1;
@@ -1500,7 +1549,10 @@ int nasal_virtual_machine::mem_get(int memory_address)
     if(0<=memory_address && memory_address<(memory_manager_memory.size()<<8))
         ret=memory_manager_memory[memory_address>>8][memory_address&0xff];
     else
-        std::cout<<">> [vm] mem_get:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
+    {
+        if(error_info_output_switch)
+            std::cout<<">> [vm] mem_get:unexpected memory \'"<<memory_address<<"\'."<<std::endl;
+    }
     return ret;
 }
 #endif
\ No newline at end of file
diff --git a/version3.0/nasal_runtime.h b/version3.0/nasal_runtime.h
index b924f41..fc2741e 100644
--- a/version3.0/nasal_runtime.h
+++ b/version3.0/nasal_runtime.h
@@ -10,12 +10,15 @@ enum runtime_returned_state
     rt_exit_without_error
 };
 
-#define BUILTIN_FUNC_NUM 3
+#define BUILTIN_FUNC_NUM 6
 std::string builtin_func_name[BUILTIN_FUNC_NUM]=
 {
     "nasal_call_builtin_std_cout",
     "nasal_call_builtin_push_back",
     "nasal_call_builtin_set_size",
+    "nasal_call_builtin_system",
+    "nasal_call_builtin_input",
+    "nasal_call_builtin_sleep"
 };
 
 class nasal_runtime
@@ -77,6 +80,9 @@ private:
     int builtin_print(int);
     int builtin_append(int);
     int builtin_setsize(int);
+    int builtin_system(int);
+    int builtin_input(int);
+    int builtin_sleep(int);
 public:
     nasal_runtime();
     ~nasal_runtime();
@@ -364,7 +370,7 @@ int nasal_runtime::loop_progress(nasal_ast& node,int local_scope_addr,bool allow
         {
             // return expression will be checked in block_progress
             ret_state=block_progress(run_block_node,local_scope_addr,allow_return);
-            if(ret_state==rt_break || ret_state==rt_error || ret_state==rt_return)
+            if(ret_state==rt_break || ret_state==rt_error || ret_state==rt_return || error)
                 break;
             condition_value_addr=calculation(condition_node,while_local_scope_addr);
             result=check_condition(condition_value_addr);
@@ -436,7 +442,7 @@ int nasal_runtime::loop_progress(nasal_ast& node,int local_scope_addr,bool allow
                 nasal_vm.mem_change(mem_addr,value_addr);
             }
             ret_state=block_progress(run_block_node,forei_local_scope_addr,allow_return);
-            if(ret_state==rt_break || ret_state==rt_return || ret_state==rt_error)
+            if(ret_state==rt_break || ret_state==rt_return || ret_state==rt_error || error)
                 break;
         }
         nasal_vm.del_reference(vector_value_addr);
@@ -473,7 +479,7 @@ int nasal_runtime::loop_progress(nasal_ast& node,int local_scope_addr,bool allow
             if(ret_state==rt_error)
                 break;
             ret_state=block_progress(run_block_node,for_local_scope_addr,allow_return);
-            if(ret_state==rt_error || ret_state==rt_return || ret_state==rt_break)
+            if(ret_state==rt_error || ret_state==rt_return || ret_state==rt_break || error)
                 break;
             condition_value_addr=calculation(condition_node,for_local_scope_addr);
             result=check_condition(condition_value_addr);
@@ -838,6 +844,7 @@ int nasal_runtime::call_function(nasal_ast& node,std::string func_name,int base_
     if(value_type!=vm_function)
     {
         std::cout<<">> [runtime] call_function: incorrect value type,expected a function."<<std::endl;
+        ++error;
         return -1;
     }
     nasal_function& reference_of_func=nasal_vm.gc_get(base_value_addr).get_func();
@@ -1063,6 +1070,9 @@ int nasal_runtime::call_builtin_function(nasal_ast& node,int local_scope_addr)
         case 0:ret_value_addr=builtin_print(local_scope_addr);break;
         case 1:ret_value_addr=builtin_append(local_scope_addr);break;
         case 2:ret_value_addr=builtin_setsize(local_scope_addr);break;
+        case 3:ret_value_addr=builtin_system(local_scope_addr);break;
+        case 4:ret_value_addr=builtin_input(local_scope_addr);break;
+        case 5:ret_value_addr=builtin_sleep(local_scope_addr);break;
     }
     return ret_value_addr;
 }