Arquivos
hhvm/hphp/compiler/statement/loop_statement.cpp
T
Jordan Delong 363d1bb20f Code move src/ -> hphp/
This change is mostly for FB internal organizational reasons.
Building is not effected beyond the fact that the target now
lands in hphp/hhvm/hhvm rather than src/hhvm/hhvm.
2013-02-11 02:10:41 -08:00

87 linhas
3.1 KiB
C++

/*
+----------------------------------------------------------------------+
| HipHop for PHP |
+----------------------------------------------------------------------+
| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#include <compiler/statement/loop_statement.h>
#include <compiler/analysis/variable_table.h>
#include <compiler/analysis/function_scope.h>
#include <util/parser/parser.h>
using namespace HPHP;
LoopStatement::LoopStatement(STATEMENT_CONSTRUCTOR_BASE_PARAMETERS) :
Statement(STATEMENT_CONSTRUCTOR_BASE_PARAMETER_VALUES) {
}
void LoopStatement::addStringBuf(const std::string &name) {
m_string_bufs.insert(name);
}
void LoopStatement::removeStringBuf(const std::string &name) {
m_string_bufs.erase(name);
}
void LoopStatement::clearStringBufs() {
m_string_bufs.clear();
}
void LoopStatement::cppDeclareBufs(CodeGenerator &cg, AnalysisResultPtr ar) {
if (numStringBufs()) {
cg_indentBegin("{\n");
for (std::set<std::string>::iterator it = m_string_bufs.begin(),
end = m_string_bufs.end(); it != end; ++it) {
const char *prefix =
getScope()->getVariables()->getVariablePrefix(*it);
cg_printf("StringBuffer %s_sbuf_%s%s(512);\n",
Option::TempPrefix, prefix, it->c_str());
}
m_outer = cg.getLoopStatement();
cg.setLoopStatement(boost::static_pointer_cast<LoopStatement>
(shared_from_this()));
}
}
void LoopStatement::cppEndBufs(CodeGenerator &cg, AnalysisResultPtr ar) {
if (numStringBufs()) {
cg.setLoopStatement(m_outer.lock());
m_outer.reset();
for (std::set<std::string>::iterator it = m_string_bufs.begin(),
end = m_string_bufs.end(); it != end; ++it) {
const char *prefix0 = getFunctionScope()->isGenerator() ?
TYPED_CONTINUATION_OBJECT_NAME "->" : "";
const char *prefix =
getScope()->getVariables()->getVariablePrefix(*it);
cg_printf("concat_assign(%s%s%s, %s_sbuf_%s%s.detachWithTaint());\n",
prefix0, prefix, it->c_str(),
Option::Option::TempPrefix,
prefix, it->c_str());
}
cg_indentEnd("}\n");
}
}
bool LoopStatement::checkStringBuf(const std::string &name) {
if (m_string_bufs.find(name) != m_string_bufs.end()) {
return true;
}
if (LoopStatementPtr outer = m_outer.lock()) {
return outer->checkStringBuf(name);
}
return false;
}