exports='context',
duplicate=False
)
- preparser_name = join('obj', 'preparser', target_id, 'preparser')
+ preparser_name = join('obj', 'preparser', target_id, 'preparser' + suffix)
preparser_program = preparser_env.Program(preparser_name, preparser_object);
preparser_env.Depends(preparser_program, preparser_library)
context.preparser_targets.append(preparser_program)
#include <stdlib.h>
#include <stdarg.h>
-#include <stdio.h>
-
#include "../include/v8stdint.h"
#include "../include/v8-preparser.h"
+#include "unicode-inl.h"
+
+enum ResultCode { kSuccess = 0, kErrorReading = 1, kErrorWriting = 2 };
+
+namespace v8 {
+namespace internal {
-// This file is only used for testing the stand-alone preparser
-// library.
-// The first (and only) argument must be the path of a JavaScript file.
-// This file is preparsed and the resulting preparser data is written
-// to stdout. Diagnostic output is output on stderr.
-// The file must contain only ASCII characters (UTF-8 isn't supported).
-// The file is read into memory, so it should have a reasonable size.
+// THIS FILE IS PROOF-OF-CONCEPT ONLY.
+// The final goal is a stand-alone preparser library.
-// Adapts an ASCII string to the UnicodeInputStream interface.
-class AsciiInputStream : public v8::UnicodeInputStream {
+class UTF8InputStream : public v8::UnicodeInputStream {
public:
- AsciiInputStream(uint8_t* buffer, size_t length)
+ UTF8InputStream(uint8_t* buffer, size_t length)
: buffer_(buffer),
- end_offset_(static_cast<int>(length)),
- offset_(0) { }
+ offset_(0),
+ pos_(0),
+ end_offset_(static_cast<int>(length)) { }
- virtual ~AsciiInputStream() { }
+ virtual ~UTF8InputStream() { }
virtual void PushBack(int32_t ch) {
- offset_--;
+ // Pushback assumes that the character pushed back is the
+ // one that was most recently read, and jumps back in the
+ // UTF-8 stream by the length of that character's encoding.
+ offset_ -= unibrow::Utf8::Length(ch);
+ pos_--;
#ifdef DEBUG
- if (offset_ < 0 ||
- (ch != ((offset_ >= end_offset_) ? -1 : buffer_[offset_]))) {
- fprintf(stderr, "Invalid pushback: '%c' at offset %d.", ch, offset_);
- exit(1);
+ if (static_cast<unsigned>(ch) <= unibrow::Utf8::kMaxOneByteChar) {
+ if (ch != buffer_[offset_]) {
+ fprintf(stderr, "Invalid pushback: '%c'.", ch);
+ exit(1);
+ }
+ } else {
+ unsigned tmp = 0;
+ if (static_cast<unibrow::uchar>(ch) !=
+ unibrow::Utf8::CalculateValue(buffer_ + offset_,
+ end_offset_ - offset_,
+ &tmp)) {
+ fprintf(stderr, "Invalid pushback: 0x%x.", ch);
+ exit(1);
+ }
}
#endif
}
virtual int32_t Next() {
- if (offset_ >= end_offset_) {
- offset_++; // Increment anyway to allow symmetric pushbacks.
- return -1;
- }
- uint8_t next_char = buffer_[offset_];
-#ifdef DEBUG
- if (next_char > 0x7fu) {
- fprintf(stderr, "Non-ASCII character in input: '%c'.", next_char);
- exit(1);
+ if (offset_ == end_offset_) return -1;
+ uint8_t first_char = buffer_[offset_];
+ if (first_char <= unibrow::Utf8::kMaxOneByteChar) {
+ pos_++;
+ offset_++;
+ return static_cast<int32_t>(first_char);
}
-#endif
- offset_++;
- return static_cast<int32_t>(next_char);
+ unibrow::uchar codepoint =
+ unibrow::Utf8::CalculateValue(buffer_ + offset_,
+ end_offset_ - offset_,
+ &offset_);
+ pos_++;
+ return static_cast<int32_t>(codepoint);
}
private:
const uint8_t* buffer_;
- const int end_offset_;
- int offset_;
+ unsigned offset_;
+ unsigned pos_;
+ unsigned end_offset_;
};
+// Write a number to dest in network byte order.
+void WriteUInt32(FILE* dest, uint32_t value, bool* ok) {
+ for (int i = 3; i >= 0; i--) {
+ uint8_t byte = static_cast<uint8_t>(value >> (i << 3));
+ int result = fputc(byte, dest);
+ if (result == EOF) {
+ *ok = false;
+ return;
+ }
+ }
+}
+
+// Read number from FILE* in network byte order.
+uint32_t ReadUInt32(FILE* source, bool* ok) {
+ uint32_t n = 0;
+ for (int i = 0; i < 4; i++) {
+ int c = fgetc(source);
+ if (c == EOF) {
+ *ok = false;
+ return 0;
+ }
+ n = (n << 8) + static_cast<uint32_t>(c);
+ }
+ return n;
+}
+
+
bool ReadBuffer(FILE* source, void* buffer, size_t length) {
size_t actually_read = fread(buffer, 1, length, source);
return (actually_read == length);
};
-int main(int argc, char* argv[]) {
- // Check for filename argument.
- if (argc < 2) {
- fprintf(stderr, "ERROR: No filename on command line.\n");
- fflush(stderr);
- return EXIT_FAILURE;
- }
- const char* filename = argv[1];
-
- // Open JS file.
- FILE* input = fopen(filename, "rb");
- if (input == NULL) {
- perror("ERROR: Error opening file");
- fflush(stderr);
- return EXIT_FAILURE;
- }
-
- // Find length of JS file.
- if (fseek(input, 0, SEEK_END) != 0) {
- perror("ERROR: Error during seek");
- fflush(stderr);
- return EXIT_FAILURE;
- }
- size_t length = static_cast<size_t>(ftell(input));
- rewind(input);
-
- // Read JS file into memory buffer.
+// Preparse input and output result on stdout.
+int PreParseIO(FILE* input) {
+ fprintf(stderr, "LOG: Enter parsing loop\n");
+ bool ok = true;
+ uint32_t length = ReadUInt32(input, &ok);
+ fprintf(stderr, "LOG: Input length: %d\n", length);
+ if (!ok) return kErrorReading;
ScopedPointer<uint8_t> buffer(new uint8_t[length]);
+
if (!ReadBuffer(input, *buffer, length)) {
- perror("ERROR: Reading file");
- fflush(stderr);
- return EXIT_FAILURE;
+ return kErrorReading;
}
- fclose(input);
-
- // Preparse input file.
- AsciiInputStream input_buffer(*buffer, length);
- size_t kMaxStackSize = 64 * 1024 * sizeof(void*); // NOLINT
- v8::PreParserData data = v8::Preparse(&input_buffer, kMaxStackSize);
+ UTF8InputStream input_buffer(*buffer, static_cast<size_t>(length));
- // Fail if stack overflow.
+ v8::PreParserData data =
+ v8::Preparse(&input_buffer, 64 * 1024 * sizeof(void*)); // NOLINT
if (data.stack_overflow()) {
- fprintf(stderr, "ERROR: Stack overflow\n");
+ fprintf(stderr, "LOG: Stack overflow\n");
fflush(stderr);
- return EXIT_FAILURE;
+ // Report stack overflow error/no-preparser-data.
+ WriteUInt32(stdout, 0, &ok);
+ if (!ok) return kErrorWriting;
+ return 0;
}
- // Print preparser data to stdout.
uint32_t size = data.size();
fprintf(stderr, "LOG: Success, data size: %u\n", size);
fflush(stderr);
+ WriteUInt32(stdout, size, &ok);
+ if (!ok) return kErrorWriting;
if (!WriteBuffer(stdout, data.data(), size)) {
- perror("ERROR: Writing data");
- return EXIT_FAILURE;
+ return kErrorWriting;
}
+ return 0;
+}
+
+} } // namespace v8::internal
- return EXIT_SUCCESS;
+
+int main(int argc, char* argv[]) {
+ FILE* input = stdin;
+ if (argc > 1) {
+ char* arg = argv[1];
+ input = fopen(arg, "rb");
+ if (input == NULL) return EXIT_FAILURE;
+ }
+ int status = 0;
+ do {
+ status = v8::internal::PreParseIO(input);
+ } while (status == 0);
+ fprintf(stderr, "EXIT: Failure %d\n", status);
+ fflush(stderr);
+ return EXIT_FAILURE;
}
+++ /dev/null
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This file contains no JavaScript code.
+++ /dev/null
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This file contains no identifiers or string literals, but does contain
-// symbols.
-
-(function () {
- if (this != null) {
- return this;
- }
- while (true) {
- if ([][2]) return false;
- }
-})({}, function() { return [true]; } );
+++ /dev/null
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This file contains no symbols or function declarations, and only
-// non-alphanumeric characters, but does contain valid code.
-
-// Created using http://discogscounter.getfreehosting.co.uk/js-noalnum_com.php
-// Probably only works in Firefox, but should parse fine.
-
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+++ /dev/null
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This file contains no function declarations.
-
-var x = 42;
-var y = "hello world";
-if (x == y) {
- with ({ x: 10, y: "20", z: 42 }) {
- print(z);
- }
-}
-try {
- x = 2;
- throw y;
- y = 4;
-} catch (e) {
- y = e;
-} finally {
- x = y;
-}
-for (var i = 0; i < 10; i++) {
- x += x;
-}
-print(y);
+++ /dev/null
-# Copyright 2011 the V8 project authors. All rights reserved.
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-# * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following
-# disclaimer in the documentation and/or other materials provided
-# with the distribution.
-# * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived
-# from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-import test
-import os
-from os.path import join, dirname, exists
-import platform
-import utils
-
-
-class PreparserTestCase(test.TestCase):
-
- def __init__(self, root, path, executable, mode, context):
- super(PreparserTestCase, self).__init__(context, path, mode)
- self.executable = executable
- self.root = root
-
- def GetLabel(self):
- return "%s %s %s" % (self.mode, self.path[-2], self.path[-1])
-
- def GetName(self):
- return self.path[-1]
-
- def BuildCommand(self, path):
- testfile = join(self.root, self.GetName()) + ".js"
- result = [self.executable, testfile]
- return result
-
- def GetCommand(self):
- return self.BuildCommand(self.path)
-
- def Run(self):
- return test.TestCase.Run(self)
-
-
-class PreparserTestConfiguration(test.TestConfiguration):
-
- def __init__(self, context, root):
- super(PreparserTestConfiguration, self).__init__(context, root)
-
- def GetBuildRequirements(self):
- return ['preparser']
-
- def ListTests(self, current_path, path, mode, variant_flags):
- executable = join('obj', 'preparser', mode, 'preparser')
- if utils.IsWindows():
- executable += '.exe'
- executable = join(self.context.buildspace, executable)
- # Find all .js files in tests/preparser directory.
- filenames = [f[:-3] for f in os.listdir(self.root) if f.endswith(".js")]
- filenames.sort()
- result = []
- for file in filenames:
- result.append(PreparserTestCase(self.root,
- current_path + [file], executable,
- mode, self.context))
- return result
-
- def GetTestStatus(self, sections, defs):
- status_file = join(self.root, 'preparser.status')
- if exists(status_file):
- test.ReadConfigurationInto(status_file, sections, defs)
-
-
-def GetConfiguration(context, root):
- return PreparserTestConfiguration(context, root)
def Run(self):
self.BeforeRun()
- result = "exception"
try:
result = self.RunCommand(self.GetCommand())
finally:
return ExpandCommand
-BUILT_IN_TESTS = ['mjsunit', 'cctest', 'message', 'preparser']
+BUILT_IN_TESTS = ['mjsunit', 'cctest', 'message']
def GetSuites(test_root):
projects / platform / upstream / v8.git / commitdiff