Owen Yamauchi
a57ae0488a
Update a number of things to make optionally generating the parser at build time possible. @sgolemon will add the OSS pieces of this in a separate commit.
110 linhas
3.4 KiB
C++
110 linhas
3.4 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- 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 <compiler/statement/exp_statement.h>
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#include <compiler/expression/assignment_expression.h>
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#include <compiler/expression/binary_op_expression.h>
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#include <compiler/expression/scalar_expression.h>
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#include <compiler/expression/include_expression.h>
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#include <compiler/option.h>
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#include "hphp/util/parser/hphp.tab.hpp"
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#include <compiler/expression/function_call.h>
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#include <compiler/analysis/analysis_result.h>
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#include <compiler/analysis/file_scope.h>
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using namespace HPHP;
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///////////////////////////////////////////////////////////////////////////////
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// constructors/destructors
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ExpStatement::ExpStatement
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(STATEMENT_CONSTRUCTOR_PARAMETERS, ExpressionPtr exp)
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: Statement(STATEMENT_CONSTRUCTOR_PARAMETER_VALUES(ExpStatement)),
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m_exp(exp) {
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}
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StatementPtr ExpStatement::clone() {
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ExpStatementPtr stmt(new ExpStatement(*this));
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stmt->m_exp = Clone(m_exp);
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return stmt;
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}
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///////////////////////////////////////////////////////////////////////////////
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// parser functions
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void ExpStatement::onParse(AnalysisResultConstPtr ar, FileScopePtr scope) {
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}
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///////////////////////////////////////////////////////////////////////////////
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// static analysis functions
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void ExpStatement::analyzeProgram(AnalysisResultPtr ar) {
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m_exp->analyzeProgram(ar);
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}
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ConstructPtr ExpStatement::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 ExpStatement::getKidCount() const {
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return 1;
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}
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void ExpStatement::setNthKid(int n, ConstructPtr cp) {
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switch (n) {
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case 0:
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m_exp = boost::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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StatementPtr ExpStatement::preOptimize(AnalysisResultConstPtr ar) {
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assert (ar->getPhase() > AnalysisResult::AnalyzeAll);
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m_exp = m_exp->unneeded();
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return StatementPtr();
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}
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StatementPtr ExpStatement::postOptimize(AnalysisResultConstPtr ar) {
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m_exp = m_exp->unneeded();
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return StatementPtr();
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}
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void ExpStatement::inferTypes(AnalysisResultPtr ar) {
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m_exp->inferAndCheck(ar, Type::Any, false);
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}
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///////////////////////////////////////////////////////////////////////////////
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// code generation functions
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void ExpStatement::outputPHP(CodeGenerator &cg, AnalysisResultPtr ar) {
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m_exp->outputPHP(cg, ar);
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cg_printf(";\n");
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}
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bool ExpStatement::shouldEmitStatement() const {
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return hasEffect() || Option::KeepStatementsWithNoEffect;
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}
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