Tim Starling
96 linhas
2.9 KiB
C++
96 linhas
2.9 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/statement/goto_statement.h"
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#include "hphp/compiler/analysis/function_scope.h"
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using namespace HPHP;
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///////////////////////////////////////////////////////////////////////////////
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// constructors/destructors
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GotoStatement::GotoStatement
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(STATEMENT_CONSTRUCTOR_PARAMETERS, const std::string &label)
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: Statement(STATEMENT_CONSTRUCTOR_PARAMETER_VALUES(GotoStatement)),
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m_label(label), m_error((ParserBase::GotoError)0), m_id(0) {
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}
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StatementPtr GotoStatement::clone() {
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GotoStatementPtr stmt(new GotoStatement(*this));
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stmt->m_label = m_label;
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stmt->m_error = m_error;
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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 GotoStatement::invalidate(ParserBase::GotoError error) {
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m_error = error;
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switch (m_error) {
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case ParserBase::UndefLabel:
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Compiler::Error(Compiler::GotoUndefLabel, shared_from_this());
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break;
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case ParserBase::InvalidBlock:
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Compiler::Error(Compiler::GotoInvalidBlock, shared_from_this());
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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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///////////////////////////////////////////////////////////////////////////////
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// static analysis functions
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void GotoStatement::analyzeProgram(AnalysisResultPtr ar) {
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if (ar->getPhase() == AnalysisResult::AnalyzeAll) {
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FunctionScopeRawPtr fs = getFunctionScope();
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if (fs) fs->setHasGoto();
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}
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}
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ConstructPtr GotoStatement::getNthKid(int n) const {
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switch (n) {
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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 GotoStatement::getKidCount() const {
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return 0;
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}
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void GotoStatement::setNthKid(int n, ConstructPtr cp) {
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switch (n) {
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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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void GotoStatement::inferTypes(AnalysisResultPtr ar) {
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}
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///////////////////////////////////////////////////////////////////////////////
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// code generation functions
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void GotoStatement::outputPHP(CodeGenerator &cg, AnalysisResultPtr ar) {
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cg_printf("goto %s;\n", m_label.c_str());
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}
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