Herman Venter
afbde6181a
The AST classes now have an additional visitor that can serialize the AST in the format expected by the unserialize function. The concrete classes to be produced by the unserialize function can be controlled by passing in a prefix argument to the visitor. Facebook only: Also added is an extension function fb_serialize_code_model_for(codeobject, prefix) that takes a string as its first argument, prefixes it with "<?php " and then parses it as if it were an eval string and then returns the serialized AST. Reviewed By: @paroski Differential Revision: D1027004
112 linhas
3.6 KiB
C++
112 linhas
3.6 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#include "hphp/compiler/expression/dynamic_variable.h"
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#include "hphp/compiler/analysis/block_scope.h"
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#include "hphp/compiler/analysis/code_error.h"
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#include "hphp/compiler/analysis/variable_table.h"
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#include "hphp/compiler/analysis/file_scope.h"
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#include "hphp/compiler/code_model_enums.h"
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using namespace HPHP;
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///////////////////////////////////////////////////////////////////////////////
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// constructors/destructors
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DynamicVariable::DynamicVariable
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(EXPRESSION_CONSTRUCTOR_PARAMETERS, ExpressionPtr exp)
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: Expression(EXPRESSION_CONSTRUCTOR_PARAMETER_VALUES(DynamicVariable)),
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m_exp(exp) {
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}
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ExpressionPtr DynamicVariable::clone() {
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DynamicVariablePtr exp(new DynamicVariable(*this));
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Expression::deepCopy(exp);
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exp->m_exp = Clone(m_exp);
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return exp;
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}
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///////////////////////////////////////////////////////////////////////////////
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// parser functions
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///////////////////////////////////////////////////////////////////////////////
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// static analysis functions
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void DynamicVariable::analyzeProgram(AnalysisResultPtr ar) {
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m_exp->analyzeProgram(ar);
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}
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ConstructPtr DynamicVariable::getNthKid(int n) const {
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switch (n) {
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case 0:
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return m_exp;
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default:
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assert(false);
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break;
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}
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return ConstructPtr();
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}
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int DynamicVariable::getKidCount() const {
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return 1;
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}
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void DynamicVariable::setNthKid(int n, ConstructPtr cp) {
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switch (n) {
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case 0:
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m_exp = dynamic_pointer_cast<Expression>(cp);
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break;
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default:
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assert(false);
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break;
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}
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}
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TypePtr DynamicVariable::inferTypes(AnalysisResultPtr ar, TypePtr type,
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bool coerce) {
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ConstructPtr self = shared_from_this();
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if (m_context & (LValue | RefValue)) {
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VariableTablePtr variables(getScope()->getVariables());
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variables->forceVariants(ar, VariableTable::AnyVars);
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variables->setAttribute(VariableTable::ContainsLDynamicVariable);
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}
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m_exp->inferAndCheck(ar, Type::String, false);
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return m_implementedType = Type::Variant;
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}
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///////////////////////////////////////////////////////////////////////////////
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void DynamicVariable::outputCodeModel(CodeGenerator &cg) {
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cg.printObjectHeader("UnaryOpExpression", 3);
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cg.printPropertyHeader("expression");
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m_exp->outputCodeModel(cg);
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cg.printPropertyHeader("operation");
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cg.printValue(PHP_DYNAMIC_VARIABLE_OP) ;
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cg.printPropertyHeader("location");
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cg.printLocation(this->getLocation());
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cg.printObjectFooter();
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}
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///////////////////////////////////////////////////////////////////////////////
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// code generation functions
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void DynamicVariable::outputPHP(CodeGenerator &cg, AnalysisResultPtr ar) {
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cg_printf("${");
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m_exp->outputPHP(cg, ar);
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cg_printf("}");
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}
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