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Nasal-Interpreter
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bug fixed

This commit is contained in:
Valk Richard Li 2019-11-27 17:07:30 +08:00 committed by GitHub
parent 85c4ce8946
commit bc5ae6384b
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 17 deletions
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36
balloon/abstract_syntax_tree.cpp
View File

@ -7,6 +7,7 @@ int exit_type=0;
std::stack<var> ret_stack; // for function ret use(especially the recursion)
int recursion_depth=0; // avoid deep recursion to sigsegv
std::string str_for_input; // avoid stack overflow
var* append_addr; // used in append function
var abstract_syntax_tree::calculation()
{
@ -518,9 +519,16 @@ var abstract_syntax_tree::call_identifier()
self.set_type(__var_function);
self.set_name(temp.get_name());
self.set_function(temp.get_function());
if(temp.get_name()=="append")
{
append_addr=NULL;
if(!i->children.empty())
append_addr=i->children.begin()->get_var_addr();
}
std::list<var> parameter;
for(std::list<abstract_syntax_tree>::iterator j=i->children.begin();j!=i->children.end();++j)
parameter.push_back(j->calculation());
if(!i->children.empty())
for(std::list<abstract_syntax_tree>::iterator j=i->children.begin();j!=i->children.end();++j)
parameter.push_back(j->calculation());
temp=temp.get_function().run_func(parameter,self);
}
else
@ -958,23 +966,19 @@ var abstract_syntax_tree::run_func(std::list<var> parameter,var self_func)
}
else if(self_func.get_name()=="append")
{
if(!parameter.empty())
if(append_addr)
{
std::list<var>::iterator i=parameter.begin();
var* array_addr=scope.append_get_addr(i->get_name());
if(array_addr->get_type()==__var_array)
if(append_addr->get_type()==__var_array)
{
if(array_addr!=&error_var)
{
++i;
for(;i!=parameter.end();++i)
array_addr->append_array(*i);
}
else
{
std::cout<<">>[Runtime-error] line "<<line<<": cannot find a var named \'"<<parameter.begin()->get_name()<<"\'."<<std::endl;
exit_type=__find_var_failure;
}
++i;
for(;i!=parameter.end();++i)
append_addr->append_array(*i);
}
else if(append_addr->get_type()==__null_type)
{
std::cout<<">>[Runtime-error] line "<<line<<": cannot find a var named \'"<<parameter.begin()->get_name()<<"\'."<<std::endl;
exit_type=__find_var_failure;
}
else
{

1
balloon/balloon.h
View File

@ -52,5 +52,6 @@ void alert_sound()
std::stack<var> ret_stack; // for function ret use
int recursion_depth; // avoid too deep recursion
std::string str_for_input // global value str to avoid stack overflow
var* append_addr // used in append function , to get a correct addr of all kinds of arrays
*/
#endif