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This commit is contained in:
Valk Richard Li
2019-11-09 17:03:54 +08:00
committed by GitHub
parent 851602ed9d
commit 305dedfdc1
7 changed files with 156 additions and 22 deletions
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balloon/abstract_syntax_tree.cpp
+37 -6
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@@ -2,6 +2,13 @@
#define __ABSTRACT_SYNTAX_TREE_CPP__
int exit_type=0;
bool abstract_syntax_tree::check()
{
return true;
}
var abstract_syntax_tree::call_id()
{
var temp;
@@ -71,6 +78,9 @@ void abstract_syntax_tree::run_root()
std::string _name=j->name;
if(!scope.search_var(_name))
{
++j;
if(j!=i->children.end())
new_var=j->get_value();
new_var.set_name(_name);
scope.add_new_var(new_var);
}
@@ -89,11 +99,15 @@ void abstract_syntax_tree::run_root()
std::cout<<i->call_id().get_name()<<std::endl;
else if(i->type==__while)
{
;
scope.add_new_block_scope();
i->run_loop();
scope.pop_last_block_scope();
}
else if(i->type==__ifelse)
{
;
scope.add_new_block_scope();
i->run_ifelse();
scope.pop_last_block_scope();
}
if(exit_type!=__process_exited_successfully)
break;
@@ -107,6 +121,26 @@ void abstract_syntax_tree::run_root()
return;
}
void abstract_syntax_tree::run_loop()
{
scope.add_new_local_scope();
abstract_syntax_tree condition=children.front();
abstract_syntax_tree blk=children.back();
while(condition.check())
blk.run_block(__loop);
scope.pop_last_local_scope();
return;
}
void abstract_syntax_tree::run_ifelse()
{
scope.add_new_local_scope();
scope.pop_last_local_scope();
return;
}
void abstract_syntax_tree::run_func()
{
scope.add_new_block_scope();
@@ -119,13 +153,10 @@ void abstract_syntax_tree::run_func()
void abstract_syntax_tree::run_block(int block_type)
{
scope.add_new_local_scope();
scope.pop_last_local_scope();
return;
}
#endif