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Nasal-Interpreter
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Valk Richard Li 2019-11-23 13:36:05 +08:00 committed by GitHub
parent 000402a56d
commit 4fb40c2281
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1 changed files with 12 additions and 7 deletions
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19
balloon/balloon_scope.h
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@ -25,6 +25,7 @@ class balloon_scope
{
if(!scope_list.empty() && !scope_list.back().empty())
{
// check the last scope
std::list<std::list<var> >::iterator i=scope_list.back().end();
--i;
for(std::list<var>::iterator j=i->begin();j!=i->end();++j)
@ -49,7 +50,7 @@ class balloon_scope
--i;
for(;;--i)
{
if(!i->empty())
if(!i->empty())// avoid sigsegv
{
for(std::list<var>::iterator j=i->begin();j!=i->end();++j)
if(j->get_name()==name)
@ -88,7 +89,7 @@ class balloon_scope
// get the last scope block(std::list<std::list<var> >)
for(;;--i)
{
if(!i->empty())
if(!i->empty())// avoid sigsegv
{
for(std::list<var>::iterator j=i->begin();j!=i->end();++j)
std::cout<<j->get_name()<<std::endl;
@ -109,7 +110,7 @@ class balloon_scope
// get the last scope block(std::list<std::list<var> >)
for(;;--i)
{
if(!i->empty())
if(!i->empty())// avoid sigsegv
{
for(std::list<var>::iterator j=i->begin();j!=i->end();++j)
if(j->get_name()==name)
@ -133,17 +134,21 @@ class balloon_scope
if(!scope_list.empty())
{
int cnt=1;
// append function will get array's address from parameters' scope so the last two blocks will be checked
// because when calling a function,a new block scope will be created.
// but the array does not exist in this block,
// so you must find the block before this block.
std::list<std::list<std::list<var> > >::iterator blk=scope_list.end();
--blk;
for(;;--blk,++cnt)
{
if(!blk->empty())
if(!blk->empty())// avoid sigsegv
{
std::list<std::list<var> >::iterator i=blk->end();
--i;
for(;;--i)
{
if(!i->empty())
if(!i->empty())// avoid sigsegv
{
for(std::list<var>::iterator j=i->begin();j!=i->end();++j)
if(j->get_name()==name)
@ -160,7 +165,7 @@ class balloon_scope
break;
}
}
if(!global.empty())
if(!global.empty())// if can't find array's address,find the global scope
{
for(std::list<var>::iterator i=global.begin();i!=global.end();++i)
if(i->get_name()==name)
@ -180,7 +185,7 @@ class balloon_scope
--i;
for(;;--i)
{
if(!i->empty())
if(!i->empty())// avoid sigsegv
{
for(std::list<var>::iterator j=i->begin();j!=i->end();++j)
if(j->get_name()==name)