hphp/compiler/statement/break_statement.cpp

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16
  17 #include "hphp/compiler/statement/break_statement.h"
  18 #include "hphp/compiler/expression/scalar_expression.h"
  19
  20 using namespace HPHP;
  21
  22 ///////////////////////////////////////////////////////////////////////////////
  23 // constructors/destructors
  24
  25 BreakStatement::BreakStatement
  26 (STATEMENT_CONSTRUCTOR_BASE_PARAMETERS, uint64_t depth)
  27   : Statement(STATEMENT_CONSTRUCTOR_BASE_PARAMETER_VALUES),
  28     m_depth(depth) {
  29   m_name = "break";
  30 }
  31
  32 BreakStatement::BreakStatement
  33 (STATEMENT_CONSTRUCTOR_PARAMETERS, uint64_t depth)
  34   : Statement(STATEMENT_CONSTRUCTOR_PARAMETER_VALUES(BreakStatement)),
  35     m_depth(depth) {
  36   m_name = "break";
  37 }
  38
  39 StatementPtr BreakStatement::clone() {
  40   BreakStatementPtr stmt(new BreakStatement(*this));
  41   stmt->m_depth = m_depth;
  42   stmt->m_name = m_name;
  43   return stmt;
  44 }
  45
  46 ///////////////////////////////////////////////////////////////////////////////
  47 // parser functions
  48
  49 ///////////////////////////////////////////////////////////////////////////////
  50 // static analysis functions
  51
  52 void BreakStatement::analyzeProgram(AnalysisResultPtr ar) {
  53 }
  54
  55 ConstructPtr BreakStatement::getNthKid(int n) const {
  56   always_assert(false);
  57 }
  58
  59 int BreakStatement::getKidCount() const {
  60   return 0;
  61 }
  62
  63 void BreakStatement::setNthKid(int n, ConstructPtr cp) {
  64   always_assert(false);
  65 }
  66
  67 uint64_t BreakStatement::getDepth() {
  68   return m_depth;
  69 }
  70
  71 StatementPtr BreakStatement::preOptimize(AnalysisResultConstPtr ar) {
  72   return StatementPtr();
  73 }
  74
  75 ///////////////////////////////////////////////////////////////////////////////
  76 // code generation functions
  77
  78 void BreakStatement::outputPHP(CodeGenerator &cg, AnalysisResultPtr ar) {
  79   if (m_depth != 1) {
  80     cg_printf("%s %" PRIu64 ";\n", m_name, m_depth);
  81   } else {
  82     cg_printf("%s;\n", m_name);
  83   }
  84 }