ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 1 | // Copyright 2006-2008 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | #ifndef V8_FLAGS_H_ |
| 28 | #define V8_FLAGS_H_ |
| 29 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 30 | namespace v8 { |
| 31 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 32 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 33 | // Declare all of our flags. |
| 34 | #define FLAG_MODE_DECLARE |
| 35 | #include "flag-definitions.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 36 | |
| 37 | // The global list of all flags. |
| 38 | class FlagList { |
| 39 | public: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 40 | // The list of all flags with a value different from the default |
| 41 | // and their values. The format of the list is like the format of the |
| 42 | // argv array passed to the main function, e.g. |
| 43 | // ("--prof", "--log-file", "v8.prof", "--nolazy"). |
| 44 | // |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 45 | // The caller is responsible for disposing the list, as well |
| 46 | // as every element of it. |
| 47 | static List<const char*>* argv(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 48 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 49 | // Set the flag values by parsing the command line. If remove_flags is |
| 50 | // set, the flags and associated values are removed from (argc, |
| 51 | // argv). Returns 0 if no error occurred. Otherwise, returns the argv |
| 52 | // index > 0 for the argument where an error occurred. In that case, |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 53 | // (argc, argv) will remain unchanged independent of the remove_flags |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 54 | // value, and no assumptions about flag settings should be made. |
| 55 | // |
| 56 | // The following syntax for flags is accepted (both '-' and '--' are ok): |
| 57 | // |
| 58 | // --flag (bool flags only) |
| 59 | // --noflag (bool flags only) |
| 60 | // --flag=value (non-bool flags only, no spaces around '=') |
| 61 | // --flag value (non-bool flags only) |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 62 | // -- (equivalent to --js_arguments, captures all remaining args) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 63 | static int SetFlagsFromCommandLine(int* argc, char** argv, bool remove_flags); |
| 64 | |
| 65 | // Set the flag values by parsing the string str. Splits string into argc |
| 66 | // substrings argv[], each of which consisting of non-white-space chars, |
| 67 | // and then calls SetFlagsFromCommandLine() and returns its result. |
| 68 | static int SetFlagsFromString(const char* str, int len); |
| 69 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 70 | // Reset all flags to their default value. |
| 71 | static void ResetAllFlags(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 72 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 73 | // Print help to stdout with flags, types, and default values. |
| 74 | static void PrintHelp(); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 75 | |
| 76 | // Set flags as consequence of being implied by another flag. |
| 77 | static void EnforceFlagImplications(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 78 | }; |
| 79 | |
| 80 | } } // namespace v8::internal |
| 81 | |
| 82 | #endif // V8_FLAGS_H_ |