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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1867 "var foo = {}; foo.yield;", | 1867 "var foo = {}; foo.yield;", |
1868 "var foo = {}; foo.super;", | 1868 "var foo = {}; foo.super;", |
1869 "var foo = {}; foo.interface;", | 1869 "var foo = {}; foo.interface;", |
1870 "var foo = {}; foo.eval;", | 1870 "var foo = {}; foo.eval;", |
1871 "var foo = {}; foo.arguments;", | 1871 "var foo = {}; foo.arguments;", |
1872 NULL | 1872 NULL |
1873 }; | 1873 }; |
1874 | 1874 |
1875 RunParserSyncTest(context_data, statement_data, kSuccess); | 1875 RunParserSyncTest(context_data, statement_data, kSuccess); |
1876 } | 1876 } |
| 1877 |
| 1878 |
| 1879 TEST(DontRegressPreParserDataSizes) { |
| 1880 // These tests make sure that PreParser doesn't start producing less data. |
| 1881 |
| 1882 v8::V8::Initialize(); |
| 1883 |
| 1884 int marker; |
| 1885 CcTest::i_isolate()->stack_guard()->SetStackLimit( |
| 1886 reinterpret_cast<uintptr_t>(&marker) - 128 * 1024); |
| 1887 |
| 1888 struct TestCase { |
| 1889 const char* program; |
| 1890 int symbols; |
| 1891 int functions; |
| 1892 } test_cases[] = { |
| 1893 // Labels, variables and functions are recorded as symbols. |
| 1894 {"{label: 42}", 1, 0}, {"{label: 42; label2: 43}", 2, 0}, |
| 1895 {"var x = 42;", 1, 0}, {"var x = 42, y = 43;", 2, 0}, |
| 1896 {"function foo() {}", 1, 1}, {"function foo() {} function bar() {}", 2, 2}, |
| 1897 // Labels, variables and functions insize lazy functions are not recorded. |
| 1898 {"function lazy() { var a, b, c; }", 1, 1}, |
| 1899 {"function lazy() { a: 1; b: 2; c: 3; }", 1, 1}, |
| 1900 {"function lazy() { function a() {} function b() {} function c() {} }", 1, |
| 1901 1}, |
| 1902 {NULL, 0, 0} |
| 1903 }; |
| 1904 // Each function adds 5 elements to the preparse function data. |
| 1905 const int kDataPerFunction = 5; |
| 1906 |
| 1907 uintptr_t stack_limit = CcTest::i_isolate()->stack_guard()->real_climit(); |
| 1908 for (int i = 0; test_cases[i].program; i++) { |
| 1909 const char* program = test_cases[i].program; |
| 1910 i::Utf8ToUtf16CharacterStream stream( |
| 1911 reinterpret_cast<const i::byte*>(program), |
| 1912 static_cast<unsigned>(strlen(program))); |
| 1913 i::CompleteParserRecorder log; |
| 1914 i::Scanner scanner(CcTest::i_isolate()->unicode_cache()); |
| 1915 scanner.Initialize(&stream); |
| 1916 |
| 1917 i::PreParser preparser(&scanner, &log, stack_limit); |
| 1918 preparser.set_allow_lazy(true); |
| 1919 preparser.set_allow_natives_syntax(true); |
| 1920 i::PreParser::PreParseResult result = preparser.PreParseProgram(); |
| 1921 CHECK_EQ(i::PreParser::kPreParseSuccess, result); |
| 1922 if (log.symbol_ids() != test_cases[i].symbols) { |
| 1923 i::OS::Print( |
| 1924 "Expected preparse data for program:\n" |
| 1925 "\t%s\n" |
| 1926 "to contain %d symbols, however, received %d symbols.\n", |
| 1927 program, test_cases[i].symbols, log.symbol_ids()); |
| 1928 CHECK(false); |
| 1929 } |
| 1930 if (log.function_position() != test_cases[i].functions * kDataPerFunction) { |
| 1931 i::OS::Print( |
| 1932 "Expected preparse data for program:\n" |
| 1933 "\t%s\n" |
| 1934 "to contain %d functions, however, received %d functions.\n", |
| 1935 program, test_cases[i].functions, |
| 1936 log.function_position() / kDataPerFunction); |
| 1937 CHECK(false); |
| 1938 } |
| 1939 i::ScriptDataImpl data(log.ExtractData()); |
| 1940 CHECK(!data.has_error()); |
| 1941 } |
| 1942 } |
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