hphp/test/ext/test_parser.cpp

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-2016 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/test/ext/test_parser.h"
  18 #include "hphp/compiler/parser/parser.h"
  19 #include "hphp/compiler/code_generator.h"
  20 #include "hphp/compiler/statement/statement_list.h"
  21 #include "hphp/compiler/analysis/analysis_result.h"
  22 #include "hphp/util/text-util.h"
  23
  24 ///////////////////////////////////////////////////////////////////////////////
  25
  26 static void strip_empty_block(std::string &s) {
  27   if (s.size() >= 2 && s[0] == '{' && s[s.size() - 1] == '}') {
  28     s = s.substr(1, s.size() - 2);
  29   }
  30 }
  31
  32 bool TestParser::SameCode(std::string code1, std::string code2) {
  33   replaceAll(code1, "\n", "");
  34   replaceAll(code2, "\n", "");
  35
  36   replaceAll(code1, "{{}}", "{}");
  37   replaceAll(code2, "{{}}", "{}");
  38   replaceAll(code1, "else {}", "");
  39   replaceAll(code2, "else {}", "");
  40   strip_empty_block(code1);
  41   strip_empty_block(code2);
  42
  43   return code1 == code2;
  44 }
  45
  46 bool TestParser::VerifyParser(const char *input, const char *output,
  47                               const char *file /* = "" */, int line /* = 0 */,
  48                               const char *output2 /* = NULL */) {
  49   assert(input);
  50   assert(output);
  51   if (output2 == nullptr) output2 = output;
  52
  53   std::string oldTab = Option::Tab;
  54   Option::Tab = "";
  55
  56   bool ret = true;
  57   {
  58     AnalysisResultPtr ar(new AnalysisResult());
  59     StatementListPtr tree = Compiler::Parser::ParseString(input, ar);
  60     std::ostringstream code;
  61     CodeGenerator cg(&code);
  62     tree->outputPHP(cg, ar);
  63     if (!SameCode(code.str(), output)) {
  64       printf("======================================\n"
  65              "[Compiler] %s:%d:\n"
  66              "======================================\n",
  67              file, line);
  68       printf("[%s]\nExpecting %d: [%s]\nGot %d: [%s]\n",
  69              input, (int)strlen(output), output,
  70              (int)code.str().length(), code.str().c_str());
  71       ret = false;
  72     }
  73   }
  74
  75   Option::Tab = oldTab;
  76   return ret;
  77 }