/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- * vim: set ts=8 sts=4 et sw=4 tw=99: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #if defined(XP_UNIX) #include #include #elif defined(XP_WIN) #include #endif #include "jsapi.h" #include "frontend/BinSource.h" #include "frontend/FullParseHandler.h" #include "frontend/ParseContext.h" #include "frontend/Parser.h" #include "gc/Zone.h" #include "js/Vector.h" #include "jsapi-tests/tests.h" #include "vm/Interpreter.h" using UsedNameTracker = js::frontend::UsedNameTracker; using namespace JS; using namespace js; extern void enterJsDirectory(); extern void exitJsDirectory(); extern void readFull(const char* path, js::Vector& buf); void readFull(JSContext* cx, const char* path, js::Vector& buf) { buf.shrinkTo(0); js::Vector intermediate(cx); readFull(path, intermediate); if (!buf.appendAll(intermediate)) MOZ_CRASH("Couldn't read data"); } BEGIN_TEST(testBinASTReaderECMAScript2) { const char BIN_SUFFIX[] = ".binjs"; const char TXT_SUFFIX[] = ".js"; CompileOptions options(cx); options.setIntroductionType("unit test parse") .setFileAndLine("", 1); #if defined(XP_UNIX) const char PATH[] = "jsapi-tests/binast/parser/tester/"; // Read the list of files in the directory. enterJsDirectory(); DIR* dir = opendir(PATH); exitJsDirectory(); if (!dir) MOZ_CRASH("Couldn't open directory"); while (auto entry = readdir(dir)) { // Find files whose name ends with ".binjs". const char* d_name = entry->d_name; #elif defined(XP_WIN) const char PATTERN[] = "jsapi-tests\\binast\\parser\\tester\\*.binjs"; const char PATH[] = "jsapi-tests\\binast\\parser\\tester\\"; WIN32_FIND_DATA FindFileData; enterJsDirectory(); HANDLE hFind = FindFirstFile(PATTERN, &FindFileData); exitJsDirectory(); for (bool found = (hFind != INVALID_HANDLE_VALUE); found; found = FindNextFile(hFind, &FindFileData)) { const char* d_name = FindFileData.cFileName; #endif // defined(XP_UNIX) || defined(XP_WIN) const size_t namlen = strlen(d_name); if (namlen < sizeof(BIN_SUFFIX)) continue; if (strncmp(d_name + namlen - (sizeof(BIN_SUFFIX) - 1), BIN_SUFFIX, sizeof(BIN_SUFFIX)) != 0) continue; // Find text file. UniqueChars txtPath(static_cast(js_malloc(namlen + sizeof(PATH) + 1))); strncpy(txtPath.get(), PATH, sizeof(PATH)); strncpy(txtPath.get() + sizeof(PATH) - 1, d_name, namlen); strncpy(txtPath.get() + sizeof(PATH) + namlen - sizeof(BIN_SUFFIX), TXT_SUFFIX, sizeof(TXT_SUFFIX)); txtPath[sizeof(PATH) + namlen - sizeof(BIN_SUFFIX) + sizeof(TXT_SUFFIX) - 1] = 0; fprintf(stderr, "Testing %s\n", txtPath.get()); // Read text file. js::Vector txtSource(cx); readFull(cx, txtPath.get(), txtSource); // Parse text file. UsedNameTracker txtUsedNames(cx); if (!txtUsedNames.init()) MOZ_CRASH("Couldn't initialize used names"); js::frontend::Parser parser(cx, cx->tempLifoAlloc(), options, txtSource.begin(), txtSource.length(), /* foldConstants = */ false, txtUsedNames, nullptr, nullptr); if (!parser.checkOptions()) MOZ_CRASH("Bad options"); auto txtParsed = parser.parse(); // Will be deallocated once `parser` goes out of scope. RootedValue txtExn(cx); if (!txtParsed) { // Save exception for more detailed error message, if necessary. if (!js::GetAndClearException(cx, &txtExn)) MOZ_CRASH("Couldn't clear exception"); } // Read binary file. UniqueChars binPath(static_cast(js_malloc(namlen + sizeof(PATH) + 1))); strncpy(binPath.get(), PATH, sizeof(PATH)); strncpy(binPath.get() + sizeof(PATH) - 1, d_name, namlen); binPath[namlen + sizeof(PATH) - 1] = 0; js::Vector binSource(cx); readFull(binPath.get(), binSource); // Parse binary file. js::frontend::UsedNameTracker binUsedNames(cx); if (!binUsedNames.init()) MOZ_CRASH("Couldn't initialized binUsedNames"); js::frontend::BinASTParser reader(cx, cx->tempLifoAlloc(), binUsedNames, options); auto binParsed = reader.parse(binSource); // Will be deallocated once `reader` goes out of scope. RootedValue binExn(cx); if (binParsed.isErr()) { // Save exception for more detailed error message, if necessary. if (!js::GetAndClearException(cx, &binExn)) MOZ_CRASH("Couldn't clear binExn"); } // The binary parser should accept the file iff the text parser has. if (binParsed.isOk() && !txtParsed) { fprintf(stderr, "Text file parsing failed: "); js::ErrorReport report(cx); if (!report.init(cx, txtExn, js::ErrorReport::WithSideEffects)) MOZ_CRASH("Couldn't report txtExn"); PrintError(cx, stderr, report.toStringResult(), report.report(), /* reportWarnings */ true); MOZ_CRASH("Binary parser accepted a file that text parser rejected"); } if (binParsed.isErr() && txtParsed) { fprintf(stderr, "Binary file parsing failed: "); js::ErrorReport report(cx); if (!report.init(cx, binExn, js::ErrorReport::WithSideEffects)) MOZ_CRASH("Couldn't report binExn"); PrintError(cx, stderr, report.toStringResult(), report.report(), /* reportWarnings */ true); MOZ_CRASH("Binary parser rejected a file that text parser accepted"); } if (binParsed.isErr()) { fprintf(stderr, "Binary parser and text parser agree that %s is invalid\n", txtPath.get()); continue; } #if defined(DEBUG) // Dumping an AST is only defined in DEBUG builds // Compare ASTs. Sprinter binPrinter(cx); if (!binPrinter.init()) MOZ_CRASH("Couldn't display binParsed"); DumpParseTree(binParsed.unwrap(), binPrinter); Sprinter txtPrinter(cx); if (!txtPrinter.init()) MOZ_CRASH("Couldn't display txtParsed"); DumpParseTree(txtParsed, txtPrinter); if (strcmp(binPrinter.string(), txtPrinter.string()) != 0) { fprintf(stderr, "Got distinct ASTs when parsing %s:\n\tBINARY\n%s\n\n\tTEXT\n%s\n", txtPath.get(), binPrinter.string(), txtPrinter.string()); MOZ_CRASH("Got distinct ASTs"); } fprintf(stderr, "Got the same AST when parsing %s\n", txtPath.get()); #endif // defined(DEBUG) } #if defined(XP_WIN) if (!FindClose(hFind)) MOZ_CRASH("Could not close Find"); #elif defined(XP_UNIX) if (closedir(dir) != 0) MOZ_CRASH("Could not close dir"); #endif // defined(XP_WIN) return true; } END_TEST(testBinASTReaderECMAScript2)