floraachy/Nasal-Interpreter
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This commit is contained in:
Valk Richard Li
2019-11-06 23:42:40 +08:00
committed by GitHub
parent ee58b45b1b
commit da6fc18e3a
3 changed files with 62 additions and 7 deletions
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58
balloon/abstract_syntax_tree.cpp
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@@ -2,33 +2,66 @@
#define __ABSTRACT_SYNTAX_TREE_CPP__
balloon_scope global;
int exit_type=0;
var abstract_syntax_tree::call_id()
{
var temp;
if(children.empty())
{
if(global.search_var(name))
temp=global.get_var(name);
else
{
std::cout<<">>[Runtime-error] cannot find a var named \'"<<name<<"\'."<<std::endl;
exit_type=__find_var_failure;
}
}
return temp;
}
var abstract_syntax_tree::get_value()
{
var temp;
temp.set_type(type);
if(type==__number)
if(type==__id)
temp=call_id();
else if(type==__number)
temp.set_number(number);
else if(type==__string)
temp.set_string(str);
else if(type==__array)
{
var new_var;
for(std::list<abstract_syntax_tree>::iterator i=children.begin();i!=children.end();++i)
{
new_var=i->get_value();
temp.append_array(new_var);
}
}
else if(type==__hash)
{
var new_var;
for(std::list<abstract_syntax_tree>::iterator i=children.begin();i!=children.end();++i)
{
new_var=i->children.begin()->get_value();
new_var.set_name(i->name);
temp.append_array(new_var);
}
}
else if(type==__function)
temp.set_function(*this);
if(name.length()!=0)
temp.set_name(name);
else
{
std::cout<<">>[Runtime-error] incorrect value."<<std::endl;
exit_type=__get_value_failure;
}
return temp;
}
void abstract_syntax_tree::run_root()
{
global.set_clear();
int beg_time,end_time;
int exit_type=__process_exited_successfully;
exit_type=__process_exited_successfully;
beg_time=time(NULL);
for(std::list<abstract_syntax_tree>::iterator i=children.begin();i!=children.end();++i)
{
@@ -49,6 +82,23 @@ void abstract_syntax_tree::run_root()
break;
}
}
else if(i->type==__number)
std::cout<<i->number<<std::endl;
else if(i->type==__string)
std::cout<<i->str<<std::endl;
else if(i->type==__id)
i->call_id();
else if(i->type==__while)
{
;
}
else if(i->type==__ifelse)
{
;
}
if(exit_type!=__process_exited_successfully)
break;
}
end_time=time(NULL);
std::cout<<">>[Runtime] process exited after "<<end_time-beg_time<<" sec(s) with returned state \'";