diff options
Diffstat (limited to 'tools/node_modules/expresso/deps/jscoverage/js/jsoplengen.cpp')
-rw-r--r-- | tools/node_modules/expresso/deps/jscoverage/js/jsoplengen.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/tools/node_modules/expresso/deps/jscoverage/js/jsoplengen.cpp b/tools/node_modules/expresso/deps/jscoverage/js/jsoplengen.cpp new file mode 100644 index 0000000..ecebc06 --- /dev/null +++ b/tools/node_modules/expresso/deps/jscoverage/js/jsoplengen.cpp @@ -0,0 +1,121 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * vim: set sw=4 ts=8 et tw=80: + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is String Switch Generator for JavaScript Keywords, + * released 2005-12-09. + * + * The Initial Developer of the Original Code is + * Igor Bukanov. + * Portions created by the Initial Developer are Copyright (C) 2005-2006 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +static const struct { + const char *name; + int length; +} pairs[] = { +#define OPDEF(op,val,name,token,length,nuses,ndefs,prec,format) \ + { #op, length } , +#include "jsopcode.tbl" +#undef OPDEF +}; + +int +main(int argc, char **argv) +{ + FILE *fp; + size_t maxNameWidth, i, nameWidth, tabStop; + int lengthGap; + + static const char prefix[] = "#define "; + static const char suffix[] = "_LENGTH"; + static const size_t tabWidth = 8; + static const size_t prefixWidth = sizeof(prefix) - 1; + static const size_t suffixWidth = sizeof(suffix) - 1; + + if (argc != 2) { + fputs("Bad usage\n", stderr); + return EXIT_FAILURE; + } + + fp = fopen(argv[1], "w"); + if (!fp) { + perror("fopen"); + return EXIT_FAILURE; + } + fputs("/*\n" + " * Automatically generated header with JS opcode length constants.\n" + " *\n" + " * Do not edit it, alter jsopcode.tbl instead.\n" + " */\n", + fp); + + /* + * Print + * + * #define name_LENGTH length + * + * with all length values aligned on the same column. The column is at the + * second character position after a tab-stop with the first position + * reserved for the minus sign of variable-length opcodes. + */ + maxNameWidth = 0; + for (i = 0; i != sizeof pairs / sizeof pairs[0]; ++i) { + nameWidth = strlen(pairs[i].name); + if (maxNameWidth < nameWidth) + maxNameWidth = nameWidth; + } + + tabStop = prefixWidth + maxNameWidth + suffixWidth + 1; + tabStop = (tabStop + tabWidth - 1) / tabWidth * tabWidth; + for (i = 0; i != sizeof pairs / sizeof pairs[0]; ++i) { + lengthGap = (int) (tabStop - prefixWidth - strlen(pairs[i].name) - + suffixWidth); + fprintf(fp, "%s%s%s%*c%2d\n", + prefix, pairs[i].name, suffix, lengthGap, ' ', + pairs[i].length); + if (ferror(fp)) { + perror("fclose"); + exit(EXIT_FAILURE); + } + } + + if (fclose(fp)) { + perror("fclose"); + return EXIT_FAILURE; + } + + return EXIT_SUCCESS; +} |