/hphp/runtime/ext/std/ext_std_variable.cpp
C++ | 345 lines | 281 code | 38 blank | 26 comment | 55 complexity | 3e103ed1f6024c45efb5dbe6003f84d6 MD5 | raw file
- /*
- +----------------------------------------------------------------------+
- | HipHop for PHP |
- +----------------------------------------------------------------------+
- | Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
- | Copyright (c) 1997-2010 The PHP Group |
- +----------------------------------------------------------------------+
- | 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 "hphp/runtime/ext/std/ext_std_variable.h"
- #include "hphp/runtime/base/variable-serializer.h"
- #include "hphp/runtime/base/variable-unserializer.h"
- #include "hphp/runtime/base/builtin-functions.h"
- #include "hphp/util/logger.h"
- namespace HPHP {
- ///////////////////////////////////////////////////////////////////////////////
- const StaticString
- s_unknown_type("unknown type"),
- s_boolean("boolean"),
- s_bool("bool"),
- s_integer("integer"),
- s_int("int"),
- s_float("float"),
- s_string("string"),
- s_object("object"),
- s_array("array"),
- s_null("null");
- String HHVM_FUNCTION(gettype, const Variant& v) {
- if (v.getType() == KindOfResource && v.getResourceData()->isInvalid()) {
- return s_unknown_type;
- }
- return getDataTypeString(v.getType());
- }
- String HHVM_FUNCTION(get_resource_type, const Resource& handle) {
- return handle->o_getResourceName();
- }
- bool HHVM_FUNCTION(boolval, const Variant& v) {
- return v.toBoolean();
- }
- int64_t HHVM_FUNCTION(intval, const Variant& v, int64_t base /* = 10 */) {
- return v.toInt64(base);
- }
- double HHVM_FUNCTION(floatval, const Variant& v) {
- return v.toDouble();
- }
- String HHVM_FUNCTION(strval, const Variant& v) {
- return v.toString();
- }
- bool HHVM_FUNCTION(settype, VRefParam var, const String& type) {
- if (type == s_boolean) var = var.toBoolean();
- else if (type == s_bool ) var = var.toBoolean();
- else if (type == s_integer) var = var.toInt64();
- else if (type == s_int ) var = var.toInt64();
- else if (type == s_float ) var = var.toDouble();
- else if (type == s_string ) var = var.toString();
- else if (type == s_array ) var = var.toArray();
- else if (type == s_object ) var = var.toObject();
- else if (type == s_null ) var = uninit_null();
- else return false;
- return true;
- }
- bool HHVM_FUNCTION(is_null, const Variant& v) {
- return is_null(v);
- }
- bool HHVM_FUNCTION(is_bool, const Variant& v) {
- return is_bool(v);
- }
- bool HHVM_FUNCTION(is_int, const Variant& v) {
- return is_int(v);
- }
- bool HHVM_FUNCTION(is_float, const Variant& v) {
- return is_double(v);
- }
- bool HHVM_FUNCTION(is_numeric, const Variant& v) {
- return v.isNumeric(true);
- }
- bool HHVM_FUNCTION(is_string, const Variant& v) {
- return is_string(v);
- }
- bool HHVM_FUNCTION(is_scalar, const Variant& v) {
- return v.isScalar();
- }
- bool HHVM_FUNCTION(is_array, const Variant& v) {
- return is_array(v);
- }
- bool HHVM_FUNCTION(is_object, const Variant& v) {
- return is_object(v);
- }
- bool HHVM_FUNCTION(is_resource, const Variant& v) {
- return (v.getType() == KindOfResource && !v.getResourceData()->isInvalid());
- }
- ///////////////////////////////////////////////////////////////////////////////
- // input/output
- Variant HHVM_FUNCTION(print_r, const Variant& expression,
- bool ret /* = false */) {
- Variant res;
- try {
- VariableSerializer vs(VariableSerializer::Type::PrintR);
- if (ret) {
- res = vs.serialize(expression, ret);
- } else {
- vs.serialize(expression, ret);
- res = true;
- }
- } catch (StringBufferLimitException &e) {
- raise_notice("print_r() exceeded max bytes limit");
- res = e.m_result;
- }
- return res;
- }
- Variant HHVM_FUNCTION(var_export, const Variant& expression,
- bool ret /* = false */) {
- Variant res;
- try {
- VariableSerializer vs(VariableSerializer::Type::VarExport);
- if (ret) {
- res = vs.serialize(expression, ret);
- } else {
- vs.serialize(expression, ret);
- res = true;
- }
- } catch (StringBufferLimitException &e) {
- raise_notice("var_export() exceeded max bytes limit");
- }
- return res;
- }
- void f_var_dump(const Variant& v) {
- VariableSerializer vs(VariableSerializer::Type::VarDump, 0, 2);
- // manipulate maxCount to match PHP behavior
- if (!v.isObject()) {
- vs.incMaxCount();
- }
- vs.serialize(v, false);
- }
- void f_var_dump(int _argc, const Variant& expression,
- const Array& _argv /* = null_array */) {
- f_var_dump(expression);
- for (int i = 0; i < _argv.size(); i++) {
- f_var_dump(_argv[i]);
- }
- }
- void HHVM_FUNCTION(debug_zval_dump, const Variant& variable) {
- VariableSerializer vs(VariableSerializer::Type::DebugDump);
- vs.serialize(variable, false);
- }
- String HHVM_FUNCTION(serialize, const Variant& value) {
- switch (value.getType()) {
- case KindOfUninit:
- case KindOfNull:
- return "N;";
- case KindOfBoolean:
- return value.getBoolean() ? "b:1;" : "b:0;";
- case KindOfInt64: {
- StringBuffer sb;
- sb.append("i:");
- sb.append(value.getInt64());
- sb.append(';');
- return sb.detach();
- }
- case KindOfStaticString:
- case KindOfString: {
- StringData *str = value.getStringData();
- StringBuffer sb;
- sb.append("s:");
- sb.append(str->size());
- sb.append(":\"");
- sb.append(str->data(), str->size());
- sb.append("\";");
- return sb.detach();
- }
- case KindOfArray: {
- ArrayData *arr = value.getArrayData();
- if (arr->empty()) return "a:0:{}";
- // fall-through
- }
- case KindOfObject:
- case KindOfResource:
- case KindOfDouble: {
- VariableSerializer vs(VariableSerializer::Type::Serialize);
- return vs.serialize(value, true);
- }
- default:
- assert(false);
- break;
- }
- return "";
- }
- Variant HHVM_FUNCTION(unserialize, const String& str,
- const Array& class_whitelist /* =[] */) {
- return unserialize_from_string(str, class_whitelist);
- }
- ///////////////////////////////////////////////////////////////////////////////
- // variable table
- Array HHVM_FUNCTION(get_defined_vars) {
- VarEnv* v = g_context->getVarEnv();
- if (v) {
- return v->getDefinedVariables();
- } else {
- return Array::Create();
- }
- }
- int64_t HHVM_FUNCTION(extract, const Array& var_array,
- int extract_type /* = EXTR_OVERWRITE */,
- const String& prefix /* = "" */) {
- bool reference = extract_type & EXTR_REFS;
- extract_type &= ~EXTR_REFS;
- VarEnv* v = g_context->getVarEnv();
- if (!v) return 0;
- int count = 0;
- for (ArrayIter iter(var_array); iter; ++iter) {
- String name = iter.first();
- StringData* nameData = name.get();
- switch (extract_type) {
- case EXTR_SKIP:
- if (v->lookup(nameData) != NULL) {
- continue;
- }
- break;
- case EXTR_IF_EXISTS:
- if (v->lookup(nameData) == NULL) {
- continue;
- }
- break;
- case EXTR_PREFIX_SAME:
- if (v->lookup(nameData) != NULL) {
- name = prefix + "_" + name;
- }
- break;
- case EXTR_PREFIX_ALL:
- name = prefix + "_" + name;
- break;
- case EXTR_PREFIX_INVALID:
- if (!is_valid_var_name(nameData->data(), nameData->size())) {
- name = prefix + "_" + name;
- }
- break;
- case EXTR_PREFIX_IF_EXISTS:
- if (v->lookup(nameData) == NULL) {
- continue;
- }
- name = prefix + "_" + name;
- break;
- default:
- break;
- }
- nameData = name.get();
- // skip invalid variable names, as in PHP
- if (!is_valid_var_name(nameData->data(), nameData->size())) {
- continue;
- }
- g_context->setVar(nameData, iter.nvSecond(), reference);
- count++;
- }
- return count;
- }
- /////////////////////////////////////////////////////////////////////////////
- #define EXTR_CONST(v) Native::registerConstant<KindOfInt64> \
- (makeStaticString("EXTR_" #v), EXTR_##v);
- void StandardExtension::initVariable() {
- EXTR_CONST(IF_EXISTS);
- EXTR_CONST(OVERWRITE);
- EXTR_CONST(PREFIX_ALL);
- EXTR_CONST(PREFIX_IF_EXISTS);
- EXTR_CONST(PREFIX_INVALID);
- EXTR_CONST(PREFIX_SAME);
- EXTR_CONST(REFS);
- EXTR_CONST(SKIP);
- HHVM_FE(is_null);
- HHVM_FE(is_bool);
- HHVM_FE(is_int);
- HHVM_FALIAS(is_integer, is_int);
- HHVM_FALIAS(is_long, is_int);
- HHVM_FE(is_float);
- HHVM_FALIAS(is_double, is_float);
- HHVM_FALIAS(is_real, is_float);
- HHVM_FE(is_numeric);
- HHVM_FE(is_string);
- HHVM_FE(is_scalar);
- HHVM_FE(is_array);
- HHVM_FE(is_object);
- HHVM_FE(is_resource);
- HHVM_FE(boolval);
- HHVM_FE(intval);
- HHVM_FE(floatval);
- HHVM_FALIAS(doubleval, floatval);
- HHVM_FE(strval);
- HHVM_FE(gettype);
- HHVM_FE(get_resource_type);
- HHVM_FE(settype);
- HHVM_FE(print_r);
- HHVM_FE(var_export);
- HHVM_FE(debug_zval_dump);
- HHVM_FE(serialize);
- HHVM_FE(unserialize);
- HHVM_FE(get_defined_vars);
- HHVM_FE(extract);
- loadSystemlib("std_variable");
- }
- ///////////////////////////////////////////////////////////////////////////////
- } // namespace HPHP