Viewing file:  count_statements_difficult.cpp (1.03 KB) -rw-rw-r--
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/*
* phc -- the open source PHP compiler
* See doc/license/README.license for licensing information
*/
#include "pass_manager/Plugin_pass.h"
#include "AST.h"
#include "process_ir/General.h"
using namespace AST;
using namespace std;
int count(List<Statement*>* in)
{
// Every item in "in" is a statement
int num_statements = in->size();
// But there can also be statements nested inside any
// of the statements in "in". We consider each one in turn.
List<Statement*>::const_iterator i;
for(i = in->begin(); i != in->end(); i++)
{
// Check if the statement is an if-statement
if(If* if_stmt = dynamic_cast<If*>(*i))
{
num_statements += count(if_stmt->iftrue);
num_statements += count(if_stmt->iffalse);
}
}
return num_statements;
}
extern "C" void load (Pass_manager* pm, Plugin_pass* pass)
{
pm->add_after_named_pass (pass, s("ast"));
}
extern "C" void run_ast (PHP_script* in, Pass_manager* pm, String* option)
{
int num_statements = count(in->statements);
cout << num_statements << " statements found" << endl;
}
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