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siliconforks |
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/* |
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instrument-js.c - JavaScript instrumentation routines |
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Copyright (C) 2007, 2008 siliconforks.com |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License along |
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with this program; if not, write to the Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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#include <config.h> |
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#include "instrument-js.h" |
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#include <assert.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <jsapi.h> |
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#include <jsarena.h> |
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#include <jsatom.h> |
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#include <jsexn.h> |
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#include <jsfun.h> |
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#include <jsinterp.h> |
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#include <jsiter.h> |
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#include <jsparse.h> |
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#include <jsregexp.h> |
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#include <jsscope.h> |
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#include <jsstr.h> |
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#include "encoding.h" |
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#include "global.h" |
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#include "highlight.h" |
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#include "resource-manager.h" |
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#include "util.h" |
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struct IfDirective { |
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const jschar * condition_start; |
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const jschar * condition_end; |
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uint16_t start_line; |
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uint16_t end_line; |
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struct IfDirective * next; |
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}; |
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static bool * exclusive_directives = NULL; |
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static JSRuntime * runtime = NULL; |
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static JSContext * context = NULL; |
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static JSObject * global = NULL; |
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static JSVersion js_version = JSVERSION_ECMA_3; |
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|
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/* |
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JSParseNode objects store line numbers starting from 1. |
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The lines array stores line numbers starting from 0. |
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*/ |
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static const char * file_id = NULL; |
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static char * lines = NULL; |
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static uint16_t num_lines = 0; |
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void jscoverage_set_js_version(const char * version) { |
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js_version = atoi(version); |
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} |
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void jscoverage_init(void) { |
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runtime = JS_NewRuntime(8L * 1024L * 1024L); |
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if (runtime == NULL) { |
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fatal("cannot create runtime"); |
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} |
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context = JS_NewContext(runtime, 8192); |
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if (context == NULL) { |
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fatal("cannot create context"); |
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} |
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JS_SetVersion(context, js_version); |
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global = JS_NewObject(context, NULL, NULL, NULL); |
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if (global == NULL) { |
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fatal("cannot create global object"); |
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} |
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if (! JS_InitStandardClasses(context, global)) { |
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fatal("cannot initialize standard classes"); |
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} |
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} |
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void jscoverage_cleanup(void) { |
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JS_DestroyContext(context); |
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JS_DestroyRuntime(runtime); |
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} |
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static void print_javascript(const jschar * characters, size_t num_characters, Stream * f) { |
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for (size_t i = 0; i < num_characters; i++) { |
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jschar c = characters[i]; |
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/* |
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XXX does not handle no-break space, other unicode "space separator" |
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*/ |
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switch (c) { |
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case 0x9: |
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case 0xB: |
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case 0xC: |
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Stream_write_char(f, c); |
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break; |
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default: |
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if (32 <= c && c <= 126) { |
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Stream_write_char(f, c); |
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} |
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else { |
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Stream_printf(f, "\\u%04x", c); |
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} |
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break; |
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} |
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} |
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} |
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static void print_string(JSString * s, Stream * f) { |
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size_t length = JSSTRING_LENGTH(s); |
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jschar * characters = JSSTRING_CHARS(s); |
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for (size_t i = 0; i < length; i++) { |
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jschar c = characters[i]; |
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if (32 <= c && c <= 126) { |
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switch (c) { |
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case '"': |
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Stream_write_string(f, "\\\""); |
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break; |
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/* |
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case '\'': |
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Stream_write_string(f, "\\'"); |
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break; |
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*/ |
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case '\\': |
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Stream_write_string(f, "\\\\"); |
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break; |
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default: |
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Stream_write_char(f, c); |
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break; |
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} |
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} |
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else { |
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switch (c) { |
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case 0x8: |
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Stream_write_string(f, "\\b"); |
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break; |
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case 0x9: |
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Stream_write_string(f, "\\t"); |
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break; |
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case 0xa: |
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Stream_write_string(f, "\\n"); |
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break; |
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/* IE doesn't support this */ |
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/* |
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case 0xb: |
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Stream_write_string(f, "\\v"); |
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break; |
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*/ |
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case 0xc: |
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Stream_write_string(f, "\\f"); |
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break; |
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case 0xd: |
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Stream_write_string(f, "\\r"); |
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break; |
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default: |
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Stream_printf(f, "\\u%04x", c); |
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break; |
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} |
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} |
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} |
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} |
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static void print_string_atom(JSAtom * atom, Stream * f) { |
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assert(ATOM_IS_STRING(atom)); |
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JSString * s = ATOM_TO_STRING(atom); |
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print_string(s, f); |
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} |
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static void print_regex(jsval value, Stream * f) { |
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assert(JSVAL_IS_STRING(value)); |
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JSString * s = JSVAL_TO_STRING(value); |
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size_t length = JSSTRING_LENGTH(s); |
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jschar * characters = JSSTRING_CHARS(s); |
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for (size_t i = 0; i < length; i++) { |
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jschar c = characters[i]; |
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if (32 <= c && c <= 126) { |
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Stream_write_char(f, c); |
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} |
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else { |
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Stream_printf(f, "\\u%04x", c); |
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} |
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} |
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} |
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static void print_quoted_string_atom(JSAtom * atom, Stream * f) { |
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assert(ATOM_IS_STRING(atom)); |
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JSString * s = ATOM_TO_STRING(atom); |
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Stream_write_char(f, '"'); |
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print_string(s, f); |
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Stream_write_char(f, '"'); |
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} |
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static const char * get_op(uint8 op) { |
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switch(op) { |
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case JSOP_OR: |
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return "||"; |
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case JSOP_AND: |
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return "&&"; |
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case JSOP_BITOR: |
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return "|"; |
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case JSOP_BITXOR: |
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return "^"; |
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case JSOP_BITAND: |
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return "&"; |
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case JSOP_EQ: |
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return "=="; |
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case JSOP_NE: |
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return "!="; |
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case JSOP_STRICTEQ: |
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return "==="; |
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case JSOP_STRICTNE: |
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return "!=="; |
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case JSOP_LT: |
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return "<"; |
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case JSOP_LE: |
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return "<="; |
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case JSOP_GT: |
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return ">"; |
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case JSOP_GE: |
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return ">="; |
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case JSOP_LSH: |
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return "<<"; |
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case JSOP_RSH: |
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return ">>"; |
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case JSOP_URSH: |
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return ">>>"; |
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case JSOP_ADD: |
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return "+"; |
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case JSOP_SUB: |
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return "-"; |
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case JSOP_MUL: |
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return "*"; |
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case JSOP_DIV: |
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return "/"; |
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case JSOP_MOD: |
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return "%"; |
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default: |
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abort(); |
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} |
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} |
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static void instrument_expression(JSParseNode * node, Stream * f); |
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static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if); |
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enum FunctionType { |
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FUNCTION_NORMAL, |
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FUNCTION_GETTER_OR_SETTER |
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}; |
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static void instrument_function(JSParseNode * node, Stream * f, int indent, enum FunctionType type) { |
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assert(node->pn_type == TOK_FUNCTION); |
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assert(node->pn_arity == PN_FUNC); |
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JSObject * object = node->pn_funpob->object; |
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assert(JS_ObjectIsFunction(context, object)); |
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JSFunction * function = (JSFunction *) JS_GetPrivate(context, object); |
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assert(function); |
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assert(object == &function->object); |
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Stream_printf(f, "%*s", indent, ""); |
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if (type == FUNCTION_NORMAL) { |
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Stream_write_string(f, "function"); |
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} |
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/* function name */ |
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if (function->atom) { |
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Stream_write_char(f, ' '); |
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print_string_atom(function->atom, f); |
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} |
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/* |
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function parameters - see JS_DecompileFunction in jsapi.cpp, which calls |
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js_DecompileFunction in jsopcode.cpp |
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*/ |
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Stream_write_string(f, "("); |
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JSArenaPool pool; |
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JS_INIT_ARENA_POOL(&pool, "instrument_function", 256, 1, &context->scriptStackQuota); |
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jsuword * local_names = NULL; |
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if (JS_GET_LOCAL_NAME_COUNT(function)) { |
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local_names = js_GetLocalNameArray(context, function, &pool); |
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if (local_names == NULL) { |
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fatal("out of memory"); |
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} |
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} |
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for (int i = 0; i < function->nargs; i++) { |
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if (i > 0) { |
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Stream_write_string(f, ", "); |
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} |
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JSAtom * param = JS_LOCAL_NAME_TO_ATOM(local_names[i]); |
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print_string_atom(param, f); |
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} |
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JS_FinishArenaPool(&pool); |
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Stream_write_string(f, ") {\n"); |
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|
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/* function body */ |
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instrument_statement(node->pn_body, f, indent + 2, false); |
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|
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Stream_write_string(f, "}\n"); |
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} |
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|
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static void instrument_function_call(JSParseNode * node, Stream * f) { |
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instrument_expression(node->pn_head, f); |
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Stream_write_char(f, '('); |
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for (struct JSParseNode * p = node->pn_head->pn_next; p != NULL; p = p->pn_next) { |
319 |
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if (p != node->pn_head->pn_next) { |
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Stream_write_string(f, ", "); |
321 |
siliconforks |
2 |
} |
322 |
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instrument_expression(p, f); |
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} |
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siliconforks |
92 |
Stream_write_char(f, ')'); |
325 |
siliconforks |
2 |
} |
326 |
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|
327 |
siliconforks |
340 |
static void instrument_declarations(JSParseNode * list, Stream * f) { |
328 |
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assert(list->pn_arity == PN_LIST); |
329 |
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for (JSParseNode * p = list->pn_head; p != NULL; p = p->pn_next) { |
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siliconforks |
341 |
switch (p->pn_type) { |
331 |
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case TOK_NAME: |
332 |
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assert(p->pn_arity == PN_NAME); |
333 |
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if (p != list->pn_head) { |
334 |
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Stream_write_string(f, ", "); |
335 |
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} |
336 |
|
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print_string_atom(p->pn_atom, f); |
337 |
|
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if (p->pn_expr != NULL) { |
338 |
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Stream_write_string(f, " = "); |
339 |
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instrument_expression(p->pn_expr, f); |
340 |
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} |
341 |
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break; |
342 |
|
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case TOK_ASSIGN: |
343 |
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case TOK_RB: |
344 |
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case TOK_RC: |
345 |
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/* destructuring */ |
346 |
|
|
instrument_expression(p, f); |
347 |
|
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break; |
348 |
|
|
default: |
349 |
|
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abort(); |
350 |
|
|
break; |
351 |
siliconforks |
340 |
} |
352 |
|
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} |
353 |
|
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} |
354 |
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|
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siliconforks |
2 |
/* |
356 |
|
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See <Expressions> in jsparse.h. |
357 |
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TOK_FUNCTION is handled as a statement and as an expression. |
358 |
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|
TOK_DBLDOT is not handled (XML op). |
359 |
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TOK_DEFSHARP and TOK_USESHARP are not handled. |
360 |
|
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TOK_ANYNAME is not handled (XML op). |
361 |
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TOK_AT is not handled (XML op). |
362 |
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TOK_DBLCOLON is not handled. |
363 |
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TOK_XML* are not handled. |
364 |
|
|
There seem to be some undocumented expressions: |
365 |
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TOK_INSTANCEOF binary |
366 |
|
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TOK_IN binary |
367 |
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*/ |
368 |
siliconforks |
92 |
static void instrument_expression(JSParseNode * node, Stream * f) { |
369 |
siliconforks |
2 |
switch (node->pn_type) { |
370 |
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case TOK_FUNCTION: |
371 |
siliconforks |
155 |
instrument_function(node, f, 0, FUNCTION_NORMAL); |
372 |
siliconforks |
2 |
break; |
373 |
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|
case TOK_COMMA: |
374 |
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for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) { |
375 |
|
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if (p != node->pn_head) { |
376 |
siliconforks |
92 |
Stream_write_string(f, ", "); |
377 |
siliconforks |
2 |
} |
378 |
|
|
instrument_expression(p, f); |
379 |
|
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} |
380 |
|
|
break; |
381 |
|
|
case TOK_ASSIGN: |
382 |
|
|
instrument_expression(node->pn_left, f); |
383 |
siliconforks |
92 |
Stream_write_char(f, ' '); |
384 |
siliconforks |
2 |
switch (node->pn_op) { |
385 |
|
|
case JSOP_ADD: |
386 |
|
|
case JSOP_SUB: |
387 |
|
|
case JSOP_MUL: |
388 |
|
|
case JSOP_MOD: |
389 |
|
|
case JSOP_LSH: |
390 |
|
|
case JSOP_RSH: |
391 |
|
|
case JSOP_URSH: |
392 |
|
|
case JSOP_BITAND: |
393 |
|
|
case JSOP_BITOR: |
394 |
|
|
case JSOP_BITXOR: |
395 |
|
|
case JSOP_DIV: |
396 |
siliconforks |
92 |
Stream_printf(f, "%s", get_op(node->pn_op)); |
397 |
siliconforks |
2 |
break; |
398 |
|
|
default: |
399 |
|
|
/* do nothing - it must be a simple assignment */ |
400 |
|
|
break; |
401 |
|
|
} |
402 |
siliconforks |
92 |
Stream_write_string(f, "= "); |
403 |
siliconforks |
2 |
instrument_expression(node->pn_right, f); |
404 |
|
|
break; |
405 |
|
|
case TOK_HOOK: |
406 |
|
|
instrument_expression(node->pn_kid1, f); |
407 |
siliconforks |
92 |
Stream_write_string(f, "? "); |
408 |
siliconforks |
2 |
instrument_expression(node->pn_kid2, f); |
409 |
siliconforks |
92 |
Stream_write_string(f, ": "); |
410 |
siliconforks |
2 |
instrument_expression(node->pn_kid3, f); |
411 |
|
|
break; |
412 |
|
|
case TOK_OR: |
413 |
|
|
case TOK_AND: |
414 |
|
|
case TOK_BITOR: |
415 |
|
|
case TOK_BITXOR: |
416 |
|
|
case TOK_BITAND: |
417 |
|
|
case TOK_EQOP: |
418 |
|
|
case TOK_RELOP: |
419 |
|
|
case TOK_SHOP: |
420 |
|
|
case TOK_PLUS: |
421 |
|
|
case TOK_MINUS: |
422 |
|
|
case TOK_STAR: |
423 |
|
|
case TOK_DIVOP: |
424 |
|
|
switch (node->pn_arity) { |
425 |
|
|
case PN_BINARY: |
426 |
|
|
instrument_expression(node->pn_left, f); |
427 |
siliconforks |
92 |
Stream_printf(f, " %s ", get_op(node->pn_op)); |
428 |
siliconforks |
2 |
instrument_expression(node->pn_right, f); |
429 |
|
|
break; |
430 |
|
|
case PN_LIST: |
431 |
|
|
for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) { |
432 |
|
|
if (p != node->pn_head) { |
433 |
siliconforks |
92 |
Stream_printf(f, " %s ", get_op(node->pn_op)); |
434 |
siliconforks |
2 |
} |
435 |
|
|
instrument_expression(p, f); |
436 |
|
|
} |
437 |
|
|
break; |
438 |
|
|
default: |
439 |
|
|
abort(); |
440 |
|
|
} |
441 |
|
|
break; |
442 |
|
|
case TOK_UNARYOP: |
443 |
|
|
switch (node->pn_op) { |
444 |
|
|
case JSOP_NEG: |
445 |
siliconforks |
92 |
Stream_write_char(f, '-'); |
446 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
447 |
|
|
break; |
448 |
|
|
case JSOP_POS: |
449 |
siliconforks |
92 |
Stream_write_char(f, '+'); |
450 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
451 |
|
|
break; |
452 |
|
|
case JSOP_NOT: |
453 |
siliconforks |
92 |
Stream_write_char(f, '!'); |
454 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
455 |
|
|
break; |
456 |
|
|
case JSOP_BITNOT: |
457 |
siliconforks |
92 |
Stream_write_char(f, '~'); |
458 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
459 |
|
|
break; |
460 |
|
|
case JSOP_TYPEOF: |
461 |
siliconforks |
92 |
Stream_write_string(f, "typeof "); |
462 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
463 |
|
|
break; |
464 |
|
|
case JSOP_VOID: |
465 |
siliconforks |
92 |
Stream_write_string(f, "void "); |
466 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
467 |
|
|
break; |
468 |
|
|
default: |
469 |
|
|
abort(); |
470 |
|
|
break; |
471 |
|
|
} |
472 |
|
|
break; |
473 |
|
|
case TOK_INC: |
474 |
|
|
case TOK_DEC: |
475 |
|
|
/* |
476 |
|
|
This is not documented, but node->pn_op tells whether it is pre- or post-increment. |
477 |
|
|
*/ |
478 |
|
|
switch (node->pn_op) { |
479 |
|
|
case JSOP_INCNAME: |
480 |
|
|
case JSOP_INCPROP: |
481 |
|
|
case JSOP_INCELEM: |
482 |
siliconforks |
92 |
Stream_write_string(f, "++"); |
483 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
484 |
|
|
break; |
485 |
|
|
case JSOP_DECNAME: |
486 |
|
|
case JSOP_DECPROP: |
487 |
|
|
case JSOP_DECELEM: |
488 |
siliconforks |
92 |
Stream_write_string(f, "--"); |
489 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
490 |
|
|
break; |
491 |
|
|
case JSOP_NAMEINC: |
492 |
|
|
case JSOP_PROPINC: |
493 |
|
|
case JSOP_ELEMINC: |
494 |
|
|
instrument_expression(node->pn_kid, f); |
495 |
siliconforks |
92 |
Stream_write_string(f, "++"); |
496 |
siliconforks |
2 |
break; |
497 |
|
|
case JSOP_NAMEDEC: |
498 |
|
|
case JSOP_PROPDEC: |
499 |
|
|
case JSOP_ELEMDEC: |
500 |
|
|
instrument_expression(node->pn_kid, f); |
501 |
siliconforks |
92 |
Stream_write_string(f, "--"); |
502 |
siliconforks |
2 |
break; |
503 |
|
|
default: |
504 |
|
|
abort(); |
505 |
|
|
break; |
506 |
|
|
} |
507 |
|
|
break; |
508 |
|
|
case TOK_NEW: |
509 |
siliconforks |
92 |
Stream_write_string(f, "new "); |
510 |
siliconforks |
2 |
instrument_function_call(node, f); |
511 |
|
|
break; |
512 |
|
|
case TOK_DELETE: |
513 |
siliconforks |
92 |
Stream_write_string(f, "delete "); |
514 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
515 |
|
|
break; |
516 |
|
|
case TOK_DOT: |
517 |
|
|
/* |
518 |
|
|
This may have originally been x['foo-bar']. Because the string 'foo-bar' |
519 |
|
|
contains illegal characters, we have to use the subscript syntax instead of |
520 |
|
|
the dot syntax. |
521 |
|
|
*/ |
522 |
|
|
instrument_expression(node->pn_expr, f); |
523 |
siliconforks |
84 |
assert(ATOM_IS_STRING(node->pn_atom)); |
524 |
|
|
{ |
525 |
|
|
JSString * s = ATOM_TO_STRING(node->pn_atom); |
526 |
siliconforks |
336 |
bool is_keyword = (js_CheckKeyword(JSSTRING_CHARS(s), JSSTRING_LENGTH(s)) != TOK_EOF); |
527 |
|
|
if (! is_keyword && js_IsIdentifier(s)) { |
528 |
siliconforks |
92 |
Stream_write_char(f, '.'); |
529 |
siliconforks |
84 |
print_string_atom(node->pn_atom, f); |
530 |
|
|
} |
531 |
|
|
else { |
532 |
siliconforks |
92 |
Stream_write_char(f, '['); |
533 |
siliconforks |
84 |
print_quoted_string_atom(node->pn_atom, f); |
534 |
siliconforks |
92 |
Stream_write_char(f, ']'); |
535 |
siliconforks |
84 |
} |
536 |
|
|
} |
537 |
siliconforks |
2 |
break; |
538 |
|
|
case TOK_LB: |
539 |
|
|
instrument_expression(node->pn_left, f); |
540 |
siliconforks |
92 |
Stream_write_char(f, '['); |
541 |
siliconforks |
2 |
instrument_expression(node->pn_right, f); |
542 |
siliconforks |
92 |
Stream_write_char(f, ']'); |
543 |
siliconforks |
2 |
break; |
544 |
|
|
case TOK_LP: |
545 |
|
|
instrument_function_call(node, f); |
546 |
|
|
break; |
547 |
|
|
case TOK_RB: |
548 |
siliconforks |
92 |
Stream_write_char(f, '['); |
549 |
siliconforks |
2 |
for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) { |
550 |
|
|
if (p != node->pn_head) { |
551 |
siliconforks |
92 |
Stream_write_string(f, ", "); |
552 |
siliconforks |
2 |
} |
553 |
|
|
/* TOK_COMMA is a special case: a hole in the array */ |
554 |
|
|
if (p->pn_type != TOK_COMMA) { |
555 |
|
|
instrument_expression(p, f); |
556 |
|
|
} |
557 |
|
|
} |
558 |
|
|
if (node->pn_extra == PNX_ENDCOMMA) { |
559 |
siliconforks |
92 |
Stream_write_char(f, ','); |
560 |
siliconforks |
2 |
} |
561 |
siliconforks |
92 |
Stream_write_char(f, ']'); |
562 |
siliconforks |
2 |
break; |
563 |
|
|
case TOK_RC: |
564 |
siliconforks |
92 |
Stream_write_char(f, '{'); |
565 |
siliconforks |
2 |
for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) { |
566 |
|
|
assert(p->pn_type == TOK_COLON); |
567 |
|
|
if (p != node->pn_head) { |
568 |
siliconforks |
92 |
Stream_write_string(f, ", "); |
569 |
siliconforks |
2 |
} |
570 |
siliconforks |
155 |
|
571 |
|
|
/* check whether this is a getter or setter */ |
572 |
|
|
switch (p->pn_op) { |
573 |
|
|
case JSOP_GETTER: |
574 |
|
|
case JSOP_SETTER: |
575 |
siliconforks |
293 |
if (p->pn_op == JSOP_GETTER) { |
576 |
|
|
Stream_write_string(f, "get "); |
577 |
|
|
} |
578 |
|
|
else { |
579 |
|
|
Stream_write_string(f, "set "); |
580 |
|
|
} |
581 |
siliconforks |
155 |
instrument_expression(p->pn_left, f); |
582 |
siliconforks |
293 |
if (p->pn_right->pn_type != TOK_FUNCTION) { |
583 |
|
|
fatal("parse error: expected function"); |
584 |
|
|
} |
585 |
siliconforks |
155 |
instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER); |
586 |
|
|
break; |
587 |
|
|
default: |
588 |
|
|
instrument_expression(p->pn_left, f); |
589 |
|
|
Stream_write_string(f, ": "); |
590 |
|
|
instrument_expression(p->pn_right, f); |
591 |
|
|
break; |
592 |
|
|
} |
593 |
siliconforks |
2 |
} |
594 |
siliconforks |
92 |
Stream_write_char(f, '}'); |
595 |
siliconforks |
2 |
break; |
596 |
|
|
case TOK_RP: |
597 |
siliconforks |
92 |
Stream_write_char(f, '('); |
598 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
599 |
siliconforks |
92 |
Stream_write_char(f, ')'); |
600 |
siliconforks |
2 |
break; |
601 |
|
|
case TOK_NAME: |
602 |
|
|
print_string_atom(node->pn_atom, f); |
603 |
|
|
break; |
604 |
|
|
case TOK_STRING: |
605 |
|
|
print_quoted_string_atom(node->pn_atom, f); |
606 |
|
|
break; |
607 |
siliconforks |
336 |
case TOK_REGEXP: |
608 |
|
|
assert(node->pn_op == JSOP_REGEXP); |
609 |
|
|
{ |
610 |
|
|
JSObject * object = node->pn_pob->object; |
611 |
|
|
jsval result; |
612 |
|
|
js_regexp_toString(context, object, &result); |
613 |
|
|
print_regex(result, f); |
614 |
siliconforks |
2 |
} |
615 |
|
|
break; |
616 |
|
|
case TOK_NUMBER: |
617 |
|
|
/* |
618 |
|
|
A 64-bit IEEE 754 floating point number has a 52-bit fraction. |
619 |
|
|
2^(-52) = 2.22 x 10^(-16) |
620 |
|
|
Thus there are 16 significant digits. |
621 |
|
|
To keep the output simple, special-case zero. |
622 |
|
|
*/ |
623 |
|
|
if (node->pn_dval == 0.0) { |
624 |
siliconforks |
92 |
Stream_write_string(f, "0"); |
625 |
siliconforks |
2 |
} |
626 |
|
|
else { |
627 |
siliconforks |
92 |
Stream_printf(f, "%.15g", node->pn_dval); |
628 |
siliconforks |
2 |
} |
629 |
|
|
break; |
630 |
|
|
case TOK_PRIMARY: |
631 |
|
|
switch (node->pn_op) { |
632 |
|
|
case JSOP_TRUE: |
633 |
siliconforks |
92 |
Stream_write_string(f, "true"); |
634 |
siliconforks |
2 |
break; |
635 |
|
|
case JSOP_FALSE: |
636 |
siliconforks |
92 |
Stream_write_string(f, "false"); |
637 |
siliconforks |
2 |
break; |
638 |
|
|
case JSOP_NULL: |
639 |
siliconforks |
92 |
Stream_write_string(f, "null"); |
640 |
siliconforks |
2 |
break; |
641 |
|
|
case JSOP_THIS: |
642 |
siliconforks |
92 |
Stream_write_string(f, "this"); |
643 |
siliconforks |
2 |
break; |
644 |
|
|
/* jsscan.h mentions `super' ??? */ |
645 |
|
|
default: |
646 |
|
|
abort(); |
647 |
|
|
} |
648 |
|
|
break; |
649 |
|
|
case TOK_INSTANCEOF: |
650 |
|
|
instrument_expression(node->pn_left, f); |
651 |
siliconforks |
92 |
Stream_write_string(f, " instanceof "); |
652 |
siliconforks |
2 |
instrument_expression(node->pn_right, f); |
653 |
|
|
break; |
654 |
|
|
case TOK_IN: |
655 |
|
|
instrument_expression(node->pn_left, f); |
656 |
siliconforks |
92 |
Stream_write_string(f, " in "); |
657 |
siliconforks |
2 |
instrument_expression(node->pn_right, f); |
658 |
|
|
break; |
659 |
siliconforks |
340 |
case TOK_LEXICALSCOPE: |
660 |
|
|
assert(node->pn_arity == PN_NAME); |
661 |
|
|
assert(node->pn_expr->pn_type == TOK_LET); |
662 |
|
|
assert(node->pn_expr->pn_arity == PN_BINARY); |
663 |
|
|
Stream_write_string(f, "let("); |
664 |
|
|
assert(node->pn_expr->pn_left->pn_type == TOK_LP); |
665 |
|
|
assert(node->pn_expr->pn_left->pn_arity == PN_LIST); |
666 |
|
|
instrument_declarations(node->pn_expr->pn_left, f); |
667 |
|
|
Stream_write_string(f, ") "); |
668 |
|
|
instrument_expression(node->pn_expr->pn_right, f); |
669 |
|
|
break; |
670 |
siliconforks |
342 |
case TOK_YIELD: |
671 |
|
|
assert(node->pn_arity == PN_UNARY); |
672 |
|
|
Stream_write_string(f, "yield "); |
673 |
|
|
instrument_expression(node->pn_kid, f); |
674 |
|
|
break; |
675 |
siliconforks |
2 |
default: |
676 |
|
|
fatal("unsupported node type in file %s: %d", file_id, node->pn_type); |
677 |
|
|
} |
678 |
|
|
} |
679 |
|
|
|
680 |
siliconforks |
92 |
static void instrument_var_statement(JSParseNode * node, Stream * f, int indent) { |
681 |
siliconforks |
2 |
assert(node->pn_arity == PN_LIST); |
682 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
683 |
|
|
Stream_write_string(f, "var "); |
684 |
siliconforks |
340 |
instrument_declarations(node, f); |
685 |
siliconforks |
2 |
} |
686 |
|
|
|
687 |
siliconforks |
340 |
static void instrument_let_definition(JSParseNode * node, Stream * f, int indent) { |
688 |
|
|
assert(node->pn_arity == PN_LIST); |
689 |
|
|
Stream_printf(f, "%*s", indent, ""); |
690 |
|
|
Stream_write_string(f, "let "); |
691 |
|
|
instrument_declarations(node, f); |
692 |
|
|
} |
693 |
|
|
|
694 |
siliconforks |
240 |
static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) { |
695 |
siliconforks |
2 |
switch (node->pn_type) { |
696 |
|
|
case TOK_FUNCTION: |
697 |
siliconforks |
155 |
instrument_function(node, f, indent, FUNCTION_NORMAL); |
698 |
siliconforks |
2 |
break; |
699 |
|
|
case TOK_LC: |
700 |
|
|
assert(node->pn_arity == PN_LIST); |
701 |
|
|
/* |
702 |
siliconforks |
92 |
Stream_write_string(f, "{\n"); |
703 |
siliconforks |
2 |
*/ |
704 |
|
|
for (struct JSParseNode * p = node->pn_u.list.head; p != NULL; p = p->pn_next) { |
705 |
siliconforks |
240 |
instrument_statement(p, f, indent, false); |
706 |
siliconforks |
2 |
} |
707 |
|
|
/* |
708 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
709 |
|
|
Stream_write_string(f, "}\n"); |
710 |
siliconforks |
2 |
*/ |
711 |
|
|
break; |
712 |
|
|
case TOK_IF: |
713 |
siliconforks |
240 |
{ |
714 |
siliconforks |
2 |
assert(node->pn_arity == PN_TERNARY); |
715 |
siliconforks |
240 |
|
716 |
|
|
uint16_t line = node->pn_pos.begin.lineno; |
717 |
|
|
if (! is_jscoverage_if) { |
718 |
|
|
if (line > num_lines) { |
719 |
|
|
fatal("%s: script contains more than 65,535 lines", file_id); |
720 |
|
|
} |
721 |
|
|
if (line >= 2 && exclusive_directives[line - 2]) { |
722 |
|
|
is_jscoverage_if = true; |
723 |
|
|
} |
724 |
|
|
} |
725 |
|
|
|
726 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
727 |
|
|
Stream_write_string(f, "if ("); |
728 |
siliconforks |
2 |
instrument_expression(node->pn_kid1, f); |
729 |
siliconforks |
92 |
Stream_write_string(f, ") {\n"); |
730 |
siliconforks |
240 |
if (is_jscoverage_if && node->pn_kid3) { |
731 |
|
|
uint16_t else_start = node->pn_kid3->pn_pos.begin.lineno; |
732 |
|
|
uint16_t else_end = node->pn_kid3->pn_pos.end.lineno + 1; |
733 |
|
|
Stream_printf(f, "%*s", indent + 2, ""); |
734 |
|
|
Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, else_start, else_end); |
735 |
|
|
} |
736 |
|
|
instrument_statement(node->pn_kid2, f, indent + 2, false); |
737 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
738 |
|
|
Stream_write_string(f, "}\n"); |
739 |
siliconforks |
240 |
|
740 |
|
|
if (node->pn_kid3 || is_jscoverage_if) { |
741 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
742 |
|
|
Stream_write_string(f, "else {\n"); |
743 |
siliconforks |
240 |
|
744 |
|
|
if (is_jscoverage_if) { |
745 |
|
|
uint16_t if_start = node->pn_kid2->pn_pos.begin.lineno + 1; |
746 |
|
|
uint16_t if_end = node->pn_kid2->pn_pos.end.lineno + 1; |
747 |
|
|
Stream_printf(f, "%*s", indent + 2, ""); |
748 |
|
|
Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_start, if_end); |
749 |
|
|
} |
750 |
|
|
|
751 |
|
|
if (node->pn_kid3) { |
752 |
|
|
instrument_statement(node->pn_kid3, f, indent + 2, is_jscoverage_if); |
753 |
|
|
} |
754 |
|
|
|
755 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
756 |
|
|
Stream_write_string(f, "}\n"); |
757 |
siliconforks |
2 |
} |
758 |
siliconforks |
240 |
|
759 |
siliconforks |
2 |
break; |
760 |
siliconforks |
240 |
} |
761 |
siliconforks |
2 |
case TOK_SWITCH: |
762 |
|
|
assert(node->pn_arity == PN_BINARY); |
763 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
764 |
|
|
Stream_write_string(f, "switch ("); |
765 |
siliconforks |
2 |
instrument_expression(node->pn_left, f); |
766 |
siliconforks |
92 |
Stream_write_string(f, ") {\n"); |
767 |
siliconforks |
2 |
for (struct JSParseNode * p = node->pn_right->pn_head; p != NULL; p = p->pn_next) { |
768 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
769 |
siliconforks |
2 |
switch (p->pn_type) { |
770 |
|
|
case TOK_CASE: |
771 |
siliconforks |
92 |
Stream_write_string(f, "case "); |
772 |
siliconforks |
2 |
instrument_expression(p->pn_left, f); |
773 |
siliconforks |
92 |
Stream_write_string(f, ":\n"); |
774 |
siliconforks |
2 |
break; |
775 |
|
|
case TOK_DEFAULT: |
776 |
siliconforks |
92 |
Stream_write_string(f, "default:\n"); |
777 |
siliconforks |
2 |
break; |
778 |
|
|
default: |
779 |
|
|
abort(); |
780 |
|
|
break; |
781 |
|
|
} |
782 |
siliconforks |
240 |
instrument_statement(p->pn_right, f, indent + 2, false); |
783 |
siliconforks |
2 |
} |
784 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
785 |
|
|
Stream_write_string(f, "}\n"); |
786 |
siliconforks |
2 |
break; |
787 |
|
|
case TOK_CASE: |
788 |
|
|
case TOK_DEFAULT: |
789 |
|
|
abort(); |
790 |
|
|
break; |
791 |
|
|
case TOK_WHILE: |
792 |
|
|
assert(node->pn_arity == PN_BINARY); |
793 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
794 |
|
|
Stream_write_string(f, "while ("); |
795 |
siliconforks |
2 |
instrument_expression(node->pn_left, f); |
796 |
siliconforks |
92 |
Stream_write_string(f, ") {\n"); |
797 |
siliconforks |
240 |
instrument_statement(node->pn_right, f, indent + 2, false); |
798 |
siliconforks |
92 |
Stream_write_string(f, "}\n"); |
799 |
siliconforks |
2 |
break; |
800 |
|
|
case TOK_DO: |
801 |
|
|
assert(node->pn_arity == PN_BINARY); |
802 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
803 |
|
|
Stream_write_string(f, "do {\n"); |
804 |
siliconforks |
240 |
instrument_statement(node->pn_left, f, indent + 2, false); |
805 |
siliconforks |
92 |
Stream_write_string(f, "}\n"); |
806 |
|
|
Stream_printf(f, "%*s", indent, ""); |
807 |
|
|
Stream_write_string(f, "while ("); |
808 |
siliconforks |
2 |
instrument_expression(node->pn_right, f); |
809 |
siliconforks |
92 |
Stream_write_string(f, ");\n"); |
810 |
siliconforks |
2 |
break; |
811 |
|
|
case TOK_FOR: |
812 |
|
|
assert(node->pn_arity == PN_BINARY); |
813 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
814 |
siliconforks |
339 |
Stream_write_string(f, "for "); |
815 |
|
|
if (node->pn_iflags & JSITER_FOREACH) { |
816 |
|
|
Stream_write_string(f, "each "); |
817 |
|
|
} |
818 |
|
|
Stream_write_char(f, '('); |
819 |
siliconforks |
2 |
switch (node->pn_left->pn_type) { |
820 |
|
|
case TOK_IN: |
821 |
|
|
/* for/in */ |
822 |
|
|
assert(node->pn_left->pn_arity == PN_BINARY); |
823 |
|
|
switch (node->pn_left->pn_left->pn_type) { |
824 |
|
|
case TOK_VAR: |
825 |
|
|
instrument_var_statement(node->pn_left->pn_left, f, 0); |
826 |
|
|
break; |
827 |
siliconforks |
340 |
case TOK_LET: |
828 |
|
|
instrument_let_definition(node->pn_left->pn_left, f, 0); |
829 |
|
|
break; |
830 |
siliconforks |
2 |
case TOK_NAME: |
831 |
|
|
instrument_expression(node->pn_left->pn_left, f); |
832 |
|
|
break; |
833 |
|
|
default: |
834 |
|
|
/* this is undocumented: for (x.value in y) */ |
835 |
|
|
instrument_expression(node->pn_left->pn_left, f); |
836 |
|
|
break; |
837 |
|
|
/* |
838 |
|
|
default: |
839 |
|
|
fprintf(stderr, "unexpected node type: %d\n", node->pn_left->pn_left->pn_type); |
840 |
|
|
abort(); |
841 |
|
|
break; |
842 |
|
|
*/ |
843 |
|
|
} |
844 |
siliconforks |
92 |
Stream_write_string(f, " in "); |
845 |
siliconforks |
2 |
instrument_expression(node->pn_left->pn_right, f); |
846 |
|
|
break; |
847 |
|
|
case TOK_RESERVED: |
848 |
|
|
/* for (;;) */ |
849 |
|
|
assert(node->pn_left->pn_arity == PN_TERNARY); |
850 |
|
|
if (node->pn_left->pn_kid1) { |
851 |
siliconforks |
340 |
switch (node->pn_left->pn_kid1->pn_type) { |
852 |
|
|
case TOK_VAR: |
853 |
siliconforks |
2 |
instrument_var_statement(node->pn_left->pn_kid1, f, 0); |
854 |
siliconforks |
340 |
break; |
855 |
|
|
case TOK_LET: |
856 |
|
|
instrument_let_definition(node->pn_left->pn_kid1, f, 0); |
857 |
|
|
break; |
858 |
|
|
default: |
859 |
siliconforks |
2 |
instrument_expression(node->pn_left->pn_kid1, f); |
860 |
siliconforks |
340 |
break; |
861 |
siliconforks |
2 |
} |
862 |
|
|
} |
863 |
siliconforks |
92 |
Stream_write_string(f, ";"); |
864 |
siliconforks |
2 |
if (node->pn_left->pn_kid2) { |
865 |
siliconforks |
92 |
Stream_write_char(f, ' '); |
866 |
siliconforks |
2 |
instrument_expression(node->pn_left->pn_kid2, f); |
867 |
|
|
} |
868 |
siliconforks |
92 |
Stream_write_string(f, ";"); |
869 |
siliconforks |
2 |
if (node->pn_left->pn_kid3) { |
870 |
siliconforks |
92 |
Stream_write_char(f, ' '); |
871 |
siliconforks |
2 |
instrument_expression(node->pn_left->pn_kid3, f); |
872 |
|
|
} |
873 |
|
|
break; |
874 |
|
|
default: |
875 |
|
|
abort(); |
876 |
|
|
break; |
877 |
|
|
} |
878 |
siliconforks |
92 |
Stream_write_string(f, ") {\n"); |
879 |
siliconforks |
240 |
instrument_statement(node->pn_right, f, indent + 2, false); |
880 |
siliconforks |
92 |
Stream_write_string(f, "}\n"); |
881 |
siliconforks |
2 |
break; |
882 |
|
|
case TOK_THROW: |
883 |
|
|
assert(node->pn_arity == PN_UNARY); |
884 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
885 |
|
|
Stream_write_string(f, "throw "); |
886 |
siliconforks |
2 |
instrument_expression(node->pn_u.unary.kid, f); |
887 |
siliconforks |
92 |
Stream_write_string(f, ";\n"); |
888 |
siliconforks |
2 |
break; |
889 |
|
|
case TOK_TRY: |
890 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
891 |
|
|
Stream_write_string(f, "try {\n"); |
892 |
siliconforks |
240 |
instrument_statement(node->pn_kid1, f, indent + 2, false); |
893 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
894 |
|
|
Stream_write_string(f, "}\n"); |
895 |
siliconforks |
336 |
if (node->pn_kid2) { |
896 |
|
|
assert(node->pn_kid2->pn_type == TOK_RESERVED); |
897 |
|
|
for (JSParseNode * scope = node->pn_kid2->pn_head; scope != NULL; scope = scope->pn_next) { |
898 |
|
|
assert(scope->pn_type == TOK_LEXICALSCOPE); |
899 |
|
|
JSParseNode * catch = scope->pn_expr; |
900 |
siliconforks |
2 |
assert(catch->pn_type == TOK_CATCH); |
901 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
902 |
|
|
Stream_write_string(f, "catch ("); |
903 |
siliconforks |
341 |
/* this may not be a name - destructuring assignment */ |
904 |
|
|
/* |
905 |
siliconforks |
2 |
assert(catch->pn_kid1->pn_arity == PN_NAME); |
906 |
|
|
print_string_atom(catch->pn_kid1->pn_atom, f); |
907 |
siliconforks |
341 |
*/ |
908 |
|
|
instrument_expression(catch->pn_kid1, f); |
909 |
siliconforks |
336 |
if (catch->pn_kid2) { |
910 |
siliconforks |
92 |
Stream_write_string(f, " if "); |
911 |
siliconforks |
336 |
instrument_expression(catch->pn_kid2, f); |
912 |
siliconforks |
2 |
} |
913 |
siliconforks |
92 |
Stream_write_string(f, ") {\n"); |
914 |
siliconforks |
240 |
instrument_statement(catch->pn_kid3, f, indent + 2, false); |
915 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
916 |
|
|
Stream_write_string(f, "}\n"); |
917 |
siliconforks |
2 |
} |
918 |
|
|
} |
919 |
|
|
if (node->pn_kid3) { |
920 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
921 |
|
|
Stream_write_string(f, "finally {\n"); |
922 |
siliconforks |
240 |
instrument_statement(node->pn_kid3, f, indent + 2, false); |
923 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
924 |
|
|
Stream_write_string(f, "}\n"); |
925 |
siliconforks |
2 |
} |
926 |
|
|
break; |
927 |
|
|
case TOK_CATCH: |
928 |
|
|
abort(); |
929 |
|
|
break; |
930 |
|
|
case TOK_BREAK: |
931 |
|
|
case TOK_CONTINUE: |
932 |
|
|
assert(node->pn_arity == PN_NAME || node->pn_arity == PN_NULLARY); |
933 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
934 |
|
|
Stream_write_string(f, node->pn_type == TOK_BREAK? "break": "continue"); |
935 |
siliconforks |
2 |
JSAtom * atom = node->pn_u.name.atom; |
936 |
|
|
if (atom != NULL) { |
937 |
siliconforks |
92 |
Stream_write_char(f, ' '); |
938 |
siliconforks |
2 |
print_string_atom(node->pn_atom, f); |
939 |
|
|
} |
940 |
siliconforks |
92 |
Stream_write_string(f, ";\n"); |
941 |
siliconforks |
2 |
break; |
942 |
|
|
case TOK_WITH: |
943 |
|
|
assert(node->pn_arity == PN_BINARY); |
944 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
945 |
|
|
Stream_write_string(f, "with ("); |
946 |
siliconforks |
2 |
instrument_expression(node->pn_left, f); |
947 |
siliconforks |
92 |
Stream_write_string(f, ") {\n"); |
948 |
siliconforks |
240 |
instrument_statement(node->pn_right, f, indent + 2, false); |
949 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
950 |
|
|
Stream_write_string(f, "}\n"); |
951 |
siliconforks |
2 |
break; |
952 |
|
|
case TOK_VAR: |
953 |
|
|
instrument_var_statement(node, f, indent); |
954 |
siliconforks |
92 |
Stream_write_string(f, ";\n"); |
955 |
siliconforks |
2 |
break; |
956 |
|
|
case TOK_RETURN: |
957 |
|
|
assert(node->pn_arity == PN_UNARY); |
958 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
959 |
|
|
Stream_write_string(f, "return"); |
960 |
siliconforks |
2 |
if (node->pn_kid != NULL) { |
961 |
siliconforks |
92 |
Stream_write_char(f, ' '); |
962 |
siliconforks |
2 |
instrument_expression(node->pn_kid, f); |
963 |
|
|
} |
964 |
siliconforks |
92 |
Stream_write_string(f, ";\n"); |
965 |
siliconforks |
2 |
break; |
966 |
|
|
case TOK_SEMI: |
967 |
|
|
assert(node->pn_arity == PN_UNARY); |
968 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
969 |
siliconforks |
2 |
if (node->pn_kid != NULL) { |
970 |
|
|
instrument_expression(node->pn_kid, f); |
971 |
|
|
} |
972 |
siliconforks |
92 |
Stream_write_string(f, ";\n"); |
973 |
siliconforks |
2 |
break; |
974 |
|
|
case TOK_COLON: |
975 |
|
|
assert(node->pn_arity == PN_NAME); |
976 |
|
|
/* |
977 |
|
|
This one is tricky: can't output instrumentation between the label and the |
978 |
|
|
statement it's supposed to label ... |
979 |
|
|
*/ |
980 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent < 2? 0: indent - 2, ""); |
981 |
siliconforks |
2 |
print_string_atom(node->pn_atom, f); |
982 |
siliconforks |
92 |
Stream_write_string(f, ":\n"); |
983 |
siliconforks |
2 |
/* |
984 |
|
|
... use output_statement instead of instrument_statement. |
985 |
|
|
*/ |
986 |
siliconforks |
240 |
output_statement(node->pn_expr, f, indent, false); |
987 |
siliconforks |
2 |
break; |
988 |
siliconforks |
340 |
case TOK_LEXICALSCOPE: |
989 |
|
|
/* let statement */ |
990 |
|
|
assert(node->pn_arity == PN_NAME); |
991 |
|
|
switch (node->pn_expr->pn_type) { |
992 |
|
|
case TOK_LET: |
993 |
|
|
/* let statement */ |
994 |
|
|
assert(node->pn_expr->pn_arity == PN_BINARY); |
995 |
|
|
instrument_statement(node->pn_expr, f, indent, false); |
996 |
|
|
break; |
997 |
|
|
case TOK_LC: |
998 |
|
|
/* block */ |
999 |
|
|
Stream_printf(f, "%*s", indent, ""); |
1000 |
|
|
Stream_write_string(f, "{\n"); |
1001 |
|
|
instrument_statement(node->pn_expr, f, indent + 2, false); |
1002 |
|
|
Stream_printf(f, "%*s", indent, ""); |
1003 |
|
|
Stream_write_string(f, "}\n"); |
1004 |
|
|
break; |
1005 |
|
|
case TOK_FOR: |
1006 |
|
|
instrument_statement(node->pn_expr, f, indent, false); |
1007 |
|
|
break; |
1008 |
|
|
default: |
1009 |
|
|
abort(); |
1010 |
|
|
break; |
1011 |
|
|
} |
1012 |
|
|
break; |
1013 |
|
|
case TOK_LET: |
1014 |
|
|
switch (node->pn_arity) { |
1015 |
|
|
case PN_BINARY: |
1016 |
|
|
/* let statement */ |
1017 |
|
|
Stream_printf(f, "%*s", indent, ""); |
1018 |
|
|
Stream_write_string(f, "let ("); |
1019 |
|
|
assert(node->pn_left->pn_type == TOK_LP); |
1020 |
|
|
assert(node->pn_left->pn_arity == PN_LIST); |
1021 |
|
|
instrument_declarations(node->pn_left, f); |
1022 |
|
|
Stream_write_string(f, ") {\n"); |
1023 |
|
|
instrument_statement(node->pn_right, f, indent + 2, false); |
1024 |
|
|
Stream_printf(f, "%*s", indent, ""); |
1025 |
|
|
Stream_write_string(f, "}\n"); |
1026 |
|
|
break; |
1027 |
|
|
case PN_LIST: |
1028 |
|
|
/* let definition */ |
1029 |
|
|
instrument_let_definition(node, f, indent); |
1030 |
|
|
Stream_write_string(f, ";\n"); |
1031 |
|
|
break; |
1032 |
|
|
default: |
1033 |
|
|
abort(); |
1034 |
|
|
break; |
1035 |
|
|
} |
1036 |
|
|
break; |
1037 |
siliconforks |
2 |
default: |
1038 |
|
|
fatal("unsupported node type in file %s: %d", file_id, node->pn_type); |
1039 |
|
|
} |
1040 |
|
|
} |
1041 |
|
|
|
1042 |
|
|
/* |
1043 |
|
|
See <Statements> in jsparse.h. |
1044 |
|
|
TOK_FUNCTION is handled as a statement and as an expression. |
1045 |
|
|
TOK_EXPORT, TOK_IMPORT are not handled. |
1046 |
|
|
*/ |
1047 |
siliconforks |
240 |
static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) { |
1048 |
siliconforks |
340 |
if (node->pn_type != TOK_LC && node->pn_type != TOK_LEXICALSCOPE) { |
1049 |
siliconforks |
214 |
uint16_t line = node->pn_pos.begin.lineno; |
1050 |
|
|
if (line > num_lines) { |
1051 |
|
|
fatal("%s: script contains more than 65,535 lines", file_id); |
1052 |
|
|
} |
1053 |
|
|
|
1054 |
siliconforks |
2 |
/* the root node has line number 0 */ |
1055 |
|
|
if (line != 0) { |
1056 |
siliconforks |
92 |
Stream_printf(f, "%*s", indent, ""); |
1057 |
|
|
Stream_printf(f, "_$jscoverage['%s'][%d]++;\n", file_id, line); |
1058 |
siliconforks |
2 |
lines[line - 1] = 1; |
1059 |
|
|
} |
1060 |
|
|
} |
1061 |
siliconforks |
240 |
output_statement(node, f, indent, is_jscoverage_if); |
1062 |
siliconforks |
2 |
} |
1063 |
|
|
|
1064 |
siliconforks |
190 |
static bool characters_start_with(const jschar * characters, size_t line_start, size_t line_end, const char * prefix) { |
1065 |
|
|
const jschar * characters_end = characters + line_end; |
1066 |
|
|
const jschar * cp = characters + line_start; |
1067 |
|
|
const char * bp = prefix; |
1068 |
|
|
for (;;) { |
1069 |
|
|
if (*bp == '\0') { |
1070 |
|
|
return true; |
1071 |
|
|
} |
1072 |
|
|
else if (cp == characters_end) { |
1073 |
|
|
return false; |
1074 |
|
|
} |
1075 |
|
|
else if (*cp != *bp) { |
1076 |
|
|
return false; |
1077 |
|
|
} |
1078 |
|
|
bp++; |
1079 |
|
|
cp++; |
1080 |
|
|
} |
1081 |
|
|
} |
1082 |
|
|
|
1083 |
siliconforks |
240 |
static bool characters_are_white_space(const jschar * characters, size_t line_start, size_t line_end) { |
1084 |
|
|
/* XXX - other Unicode space */ |
1085 |
|
|
const jschar * end = characters + line_end; |
1086 |
|
|
for (const jschar * p = characters + line_start; p < end; p++) { |
1087 |
|
|
jschar c = *p; |
1088 |
|
|
if (c == 0x9 || c == 0xB || c == 0xC || c == 0x20 || c == 0xA0) { |
1089 |
|
|
continue; |
1090 |
|
|
} |
1091 |
|
|
else { |
1092 |
|
|
return false; |
1093 |
|
|
} |
1094 |
|
|
} |
1095 |
|
|
return true; |
1096 |
|
|
} |
1097 |
|
|
|
1098 |
siliconforks |
284 |
static void error_reporter(JSContext * context, const char * message, JSErrorReport * report) { |
1099 |
|
|
fprintf(stderr, "jscoverage: parse error: line %u: %s\n", report->lineno, message); |
1100 |
|
|
} |
1101 |
|
|
|
1102 |
siliconforks |
179 |
void jscoverage_instrument_js(const char * id, const uint16_t * characters, size_t num_characters, Stream * output) { |
1103 |
siliconforks |
2 |
file_id = id; |
1104 |
|
|
|
1105 |
siliconforks |
336 |
/* parse the javascript */ |
1106 |
|
|
JSParseContext parse_context; |
1107 |
|
|
if (! js_InitParseContext(context, &parse_context, NULL, NULL, characters, num_characters, NULL, NULL, 1)) { |
1108 |
siliconforks |
2 |
fatal("cannot create token stream from file: %s", file_id); |
1109 |
|
|
} |
1110 |
siliconforks |
284 |
JSErrorReporter old_error_reporter = JS_SetErrorReporter(context, error_reporter); |
1111 |
siliconforks |
336 |
JSParseNode * node = js_ParseScript(context, global, &parse_context); |
1112 |
siliconforks |
2 |
if (node == NULL) { |
1113 |
siliconforks |
284 |
js_ReportUncaughtException(context); |
1114 |
siliconforks |
2 |
fatal("parse error in file: %s", file_id); |
1115 |
|
|
} |
1116 |
siliconforks |
284 |
JS_SetErrorReporter(context, old_error_reporter); |
1117 |
siliconforks |
214 |
num_lines = node->pn_pos.end.lineno; |
1118 |
siliconforks |
2 |
lines = xmalloc(num_lines); |
1119 |
siliconforks |
240 |
for (unsigned int i = 0; i < num_lines; i++) { |
1120 |
siliconforks |
2 |
lines[i] = 0; |
1121 |
|
|
} |
1122 |
|
|
|
1123 |
siliconforks |
240 |
/* search code for conditionals */ |
1124 |
|
|
exclusive_directives = xnew(bool, num_lines); |
1125 |
|
|
for (unsigned int i = 0; i < num_lines; i++) { |
1126 |
|
|
exclusive_directives[i] = false; |
1127 |
siliconforks |
2 |
} |
1128 |
|
|
|
1129 |
siliconforks |
157 |
bool has_conditionals = false; |
1130 |
siliconforks |
240 |
struct IfDirective * if_directives = NULL; |
1131 |
siliconforks |
157 |
size_t line_number = 0; |
1132 |
|
|
size_t i = 0; |
1133 |
siliconforks |
176 |
while (i < num_characters) { |
1134 |
siliconforks |
240 |
if (line_number == UINT16_MAX) { |
1135 |
|
|
fatal("%s: script has more than 65,535 lines", file_id); |
1136 |
|
|
} |
1137 |
siliconforks |
157 |
line_number++; |
1138 |
|
|
size_t line_start = i; |
1139 |
siliconforks |
190 |
jschar c; |
1140 |
|
|
bool done = false; |
1141 |
|
|
while (! done && i < num_characters) { |
1142 |
|
|
c = characters[i]; |
1143 |
|
|
switch (c) { |
1144 |
|
|
case '\r': |
1145 |
|
|
case '\n': |
1146 |
|
|
case 0x2028: |
1147 |
|
|
case 0x2029: |
1148 |
|
|
done = true; |
1149 |
|
|
break; |
1150 |
|
|
default: |
1151 |
|
|
i++; |
1152 |
|
|
} |
1153 |
siliconforks |
157 |
} |
1154 |
|
|
size_t line_end = i; |
1155 |
siliconforks |
176 |
if (i < num_characters) { |
1156 |
siliconforks |
190 |
i++; |
1157 |
|
|
if (c == '\r' && i < num_characters && characters[i] == '\n') { |
1158 |
siliconforks |
157 |
i++; |
1159 |
|
|
} |
1160 |
|
|
} |
1161 |
siliconforks |
240 |
|
1162 |
siliconforks |
190 |
if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_IF")) { |
1163 |
siliconforks |
240 |
has_conditionals = true; |
1164 |
|
|
|
1165 |
|
|
if (characters_are_white_space(characters, line_start + 16, line_end)) { |
1166 |
|
|
exclusive_directives[line_number - 1] = true; |
1167 |
siliconforks |
157 |
} |
1168 |
siliconforks |
240 |
else { |
1169 |
|
|
struct IfDirective * if_directive = xnew(struct IfDirective, 1); |
1170 |
|
|
if_directive->condition_start = characters + line_start + 16; |
1171 |
|
|
if_directive->condition_end = characters + line_end; |
1172 |
|
|
if_directive->start_line = line_number; |
1173 |
|
|
if_directive->end_line = 0; |
1174 |
|
|
if_directive->next = if_directives; |
1175 |
|
|
if_directives = if_directive; |
1176 |
siliconforks |
190 |
} |
1177 |
siliconforks |
157 |
} |
1178 |
siliconforks |
190 |
else if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_ENDIF")) { |
1179 |
siliconforks |
240 |
for (struct IfDirective * p = if_directives; p != NULL; p = p->next) { |
1180 |
|
|
if (p->end_line == 0) { |
1181 |
|
|
p->end_line = line_number; |
1182 |
|
|
break; |
1183 |
|
|
} |
1184 |
|
|
} |
1185 |
siliconforks |
157 |
} |
1186 |
|
|
} |
1187 |
|
|
|
1188 |
siliconforks |
240 |
/* |
1189 |
|
|
An instrumented JavaScript file has 4 sections: |
1190 |
|
|
1. initialization |
1191 |
|
|
2. instrumented source code |
1192 |
|
|
3. conditionals |
1193 |
|
|
4. original source code |
1194 |
|
|
*/ |
1195 |
|
|
|
1196 |
|
|
Stream * instrumented = Stream_new(0); |
1197 |
|
|
instrument_statement(node, instrumented, 0, false); |
1198 |
siliconforks |
336 |
js_FinishParseContext(context, &parse_context); |
1199 |
siliconforks |
240 |
|
1200 |
|
|
/* write line number info to the output */ |
1201 |
|
|
Stream_write_string(output, "/* automatically generated by JSCoverage - do not edit */\n"); |
1202 |
|
|
Stream_write_string(output, "if (! top._$jscoverage) {\n top._$jscoverage = {};\n}\n"); |
1203 |
|
|
Stream_write_string(output, "var _$jscoverage = top._$jscoverage;\n"); |
1204 |
|
|
Stream_printf(output, "if (! _$jscoverage['%s']) {\n", file_id); |
1205 |
|
|
Stream_printf(output, " _$jscoverage['%s'] = [];\n", file_id); |
1206 |
|
|
for (int i = 0; i < num_lines; i++) { |
1207 |
|
|
if (lines[i]) { |
1208 |
|
|
Stream_printf(output, " _$jscoverage['%s'][%d] = 0;\n", file_id, i + 1); |
1209 |
|
|
} |
1210 |
|
|
} |
1211 |
|
|
Stream_write_string(output, "}\n"); |
1212 |
|
|
free(lines); |
1213 |
|
|
lines = NULL; |
1214 |
|
|
free(exclusive_directives); |
1215 |
|
|
exclusive_directives = NULL; |
1216 |
|
|
|
1217 |
|
|
/* conditionals */ |
1218 |
|
|
if (has_conditionals) { |
1219 |
|
|
Stream_printf(output, "_$jscoverage['%s'].conditionals = [];\n", file_id); |
1220 |
|
|
} |
1221 |
|
|
|
1222 |
|
|
/* copy the instrumented source code to the output */ |
1223 |
|
|
Stream_write(output, instrumented->data, instrumented->length); |
1224 |
|
|
|
1225 |
|
|
/* conditionals */ |
1226 |
|
|
for (struct IfDirective * if_directive = if_directives; if_directive != NULL; if_directive = if_directive->next) { |
1227 |
|
|
Stream_write_string(output, "if (!("); |
1228 |
siliconforks |
246 |
print_javascript(if_directive->condition_start, if_directive->condition_end - if_directive->condition_start, output); |
1229 |
siliconforks |
240 |
Stream_write_string(output, ")) {\n"); |
1230 |
|
|
Stream_printf(output, " _$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_directive->start_line, if_directive->end_line); |
1231 |
|
|
Stream_write_string(output, "}\n"); |
1232 |
|
|
} |
1233 |
|
|
|
1234 |
|
|
/* free */ |
1235 |
|
|
while (if_directives != NULL) { |
1236 |
|
|
struct IfDirective * if_directive = if_directives; |
1237 |
|
|
if_directives = if_directives->next; |
1238 |
|
|
free(if_directive); |
1239 |
|
|
} |
1240 |
|
|
|
1241 |
siliconforks |
95 |
/* copy the original source to the output */ |
1242 |
siliconforks |
179 |
Stream_printf(output, "_$jscoverage['%s'].source = ", file_id); |
1243 |
|
|
jscoverage_write_source(id, characters, num_characters, output); |
1244 |
|
|
Stream_printf(output, ";\n"); |
1245 |
siliconforks |
95 |
|
1246 |
siliconforks |
179 |
Stream_delete(instrumented); |
1247 |
|
|
|
1248 |
|
|
file_id = NULL; |
1249 |
|
|
} |
1250 |
|
|
|
1251 |
|
|
void jscoverage_write_source(const char * id, const jschar * characters, size_t num_characters, Stream * output) { |
1252 |
|
|
Stream_write_string(output, "["); |
1253 |
|
|
if (jscoverage_highlight) { |
1254 |
|
|
Stream * highlighted_stream = Stream_new(num_characters); |
1255 |
|
|
jscoverage_highlight_js(context, id, characters, num_characters, highlighted_stream); |
1256 |
|
|
size_t i = 0; |
1257 |
|
|
while (i < highlighted_stream->length) { |
1258 |
|
|
if (i > 0) { |
1259 |
|
|
Stream_write_char(output, ','); |
1260 |
|
|
} |
1261 |
|
|
|
1262 |
|
|
Stream_write_char(output, '"'); |
1263 |
|
|
bool done = false; |
1264 |
|
|
while (! done) { |
1265 |
|
|
char c = highlighted_stream->data[i]; |
1266 |
|
|
switch (c) { |
1267 |
|
|
case 0x8: |
1268 |
|
|
/* backspace */ |
1269 |
|
|
Stream_write_string(output, "\\b"); |
1270 |
|
|
break; |
1271 |
|
|
case 0x9: |
1272 |
|
|
/* horizontal tab */ |
1273 |
|
|
Stream_write_string(output, "\\t"); |
1274 |
|
|
break; |
1275 |
|
|
case 0xa: |
1276 |
|
|
/* line feed (new line) */ |
1277 |
|
|
done = true; |
1278 |
|
|
break; |
1279 |
siliconforks |
317 |
/* IE doesn't support this */ |
1280 |
|
|
/* |
1281 |
siliconforks |
179 |
case 0xb: |
1282 |
|
|
Stream_write_string(output, "\\v"); |
1283 |
|
|
break; |
1284 |
siliconforks |
317 |
*/ |
1285 |
siliconforks |
179 |
case 0xc: |
1286 |
|
|
/* form feed */ |
1287 |
|
|
Stream_write_string(output, "\\f"); |
1288 |
|
|
break; |
1289 |
|
|
case 0xd: |
1290 |
|
|
/* carriage return */ |
1291 |
|
|
done = true; |
1292 |
|
|
if (i + 1 < highlighted_stream->length && highlighted_stream->data[i + 1] == '\n') { |
1293 |
|
|
i++; |
1294 |
|
|
} |
1295 |
|
|
break; |
1296 |
|
|
case '"': |
1297 |
|
|
Stream_write_string(output, "\\\""); |
1298 |
|
|
break; |
1299 |
|
|
case '\\': |
1300 |
|
|
Stream_write_string(output, "\\\\"); |
1301 |
|
|
break; |
1302 |
|
|
default: |
1303 |
|
|
Stream_write_char(output, c); |
1304 |
|
|
break; |
1305 |
|
|
} |
1306 |
siliconforks |
95 |
i++; |
1307 |
siliconforks |
179 |
if (i >= highlighted_stream->length) { |
1308 |
|
|
done = true; |
1309 |
siliconforks |
95 |
} |
1310 |
|
|
} |
1311 |
siliconforks |
179 |
Stream_write_char(output, '"'); |
1312 |
|
|
} |
1313 |
|
|
Stream_delete(highlighted_stream); |
1314 |
|
|
} |
1315 |
|
|
else { |
1316 |
|
|
size_t i = 0; |
1317 |
|
|
while (i < num_characters) { |
1318 |
|
|
if (i > 0) { |
1319 |
|
|
Stream_write_char(output, ','); |
1320 |
|
|
} |
1321 |
|
|
|
1322 |
|
|
Stream_write_char(output, '"'); |
1323 |
|
|
bool done = false; |
1324 |
|
|
while (! done) { |
1325 |
|
|
jschar c = characters[i]; |
1326 |
|
|
switch (c) { |
1327 |
|
|
case 0x8: |
1328 |
|
|
/* backspace */ |
1329 |
|
|
Stream_write_string(output, "\\b"); |
1330 |
|
|
break; |
1331 |
|
|
case 0x9: |
1332 |
|
|
/* horizontal tab */ |
1333 |
|
|
Stream_write_string(output, "\\t"); |
1334 |
|
|
break; |
1335 |
|
|
case 0xa: |
1336 |
|
|
/* line feed (new line) */ |
1337 |
|
|
done = true; |
1338 |
|
|
break; |
1339 |
siliconforks |
317 |
/* IE doesn't support this */ |
1340 |
|
|
/* |
1341 |
siliconforks |
179 |
case 0xb: |
1342 |
|
|
Stream_write_string(output, "\\v"); |
1343 |
|
|
break; |
1344 |
siliconforks |
317 |
*/ |
1345 |
siliconforks |
179 |
case 0xc: |
1346 |
|
|
/* form feed */ |
1347 |
|
|
Stream_write_string(output, "\\f"); |
1348 |
|
|
break; |
1349 |
|
|
case 0xd: |
1350 |
|
|
/* carriage return */ |
1351 |
|
|
done = true; |
1352 |
|
|
if (i + 1 < num_characters && characters[i + 1] == '\n') { |
1353 |
|
|
i++; |
1354 |
|
|
} |
1355 |
|
|
break; |
1356 |
|
|
case '"': |
1357 |
|
|
Stream_write_string(output, "\\\""); |
1358 |
|
|
break; |
1359 |
|
|
case '\\': |
1360 |
|
|
Stream_write_string(output, "\\\\"); |
1361 |
|
|
break; |
1362 |
|
|
case '&': |
1363 |
|
|
Stream_write_string(output, "&"); |
1364 |
|
|
break; |
1365 |
|
|
case '<': |
1366 |
|
|
Stream_write_string(output, "<"); |
1367 |
|
|
break; |
1368 |
|
|
case '>': |
1369 |
|
|
Stream_write_string(output, ">"); |
1370 |
|
|
break; |
1371 |
|
|
case 0x2028: |
1372 |
|
|
case 0x2029: |
1373 |
|
|
done = true; |
1374 |
|
|
break; |
1375 |
|
|
default: |
1376 |
|
|
if (32 <= c && c <= 126) { |
1377 |
|
|
Stream_write_char(output, c); |
1378 |
|
|
} |
1379 |
|
|
else { |
1380 |
|
|
Stream_printf(output, "&#%d;", c); |
1381 |
|
|
} |
1382 |
|
|
break; |
1383 |
|
|
} |
1384 |
siliconforks |
95 |
i++; |
1385 |
siliconforks |
179 |
if (i >= num_characters) { |
1386 |
|
|
done = true; |
1387 |
|
|
} |
1388 |
siliconforks |
95 |
} |
1389 |
siliconforks |
179 |
Stream_write_char(output, '"'); |
1390 |
siliconforks |
95 |
} |
1391 |
|
|
} |
1392 |
siliconforks |
179 |
Stream_write_string(output, "]"); |
1393 |
siliconforks |
2 |
} |
1394 |
siliconforks |
116 |
|
1395 |
|
|
void jscoverage_copy_resources(const char * destination_directory) { |
1396 |
|
|
copy_resource("jscoverage.html", destination_directory); |
1397 |
|
|
copy_resource("jscoverage.css", destination_directory); |
1398 |
|
|
copy_resource("jscoverage.js", destination_directory); |
1399 |
siliconforks |
169 |
copy_resource("jscoverage-ie.css", destination_directory); |
1400 |
siliconforks |
116 |
copy_resource("jscoverage-throbber.gif", destination_directory); |
1401 |
siliconforks |
179 |
copy_resource("jscoverage-highlight.css", destination_directory); |
1402 |
siliconforks |
116 |
} |
1403 |
|
|
|
1404 |
|
|
/* |
1405 |
|
|
coverage reports |
1406 |
|
|
*/ |
1407 |
|
|
|
1408 |
|
|
struct FileCoverageList { |
1409 |
|
|
FileCoverage * file_coverage; |
1410 |
|
|
struct FileCoverageList * next; |
1411 |
|
|
}; |
1412 |
|
|
|
1413 |
|
|
struct Coverage { |
1414 |
|
|
JSHashTable * coverage_table; |
1415 |
|
|
struct FileCoverageList * coverage_list; |
1416 |
|
|
}; |
1417 |
|
|
|
1418 |
|
|
static int compare_strings(const void * p1, const void * p2) { |
1419 |
|
|
return strcmp(p1, p2) == 0; |
1420 |
|
|
} |
1421 |
|
|
|
1422 |
|
|
Coverage * Coverage_new(void) { |
1423 |
|
|
Coverage * result = xmalloc(sizeof(Coverage)); |
1424 |
|
|
result->coverage_table = JS_NewHashTable(1024, JS_HashString, compare_strings, NULL, NULL, NULL); |
1425 |
|
|
if (result->coverage_table == NULL) { |
1426 |
|
|
fatal("cannot create hash table"); |
1427 |
|
|
} |
1428 |
|
|
result->coverage_list = NULL; |
1429 |
|
|
return result; |
1430 |
|
|
} |
1431 |
|
|
|
1432 |
|
|
void Coverage_delete(Coverage * coverage) { |
1433 |
|
|
JS_HashTableDestroy(coverage->coverage_table); |
1434 |
|
|
struct FileCoverageList * p = coverage->coverage_list; |
1435 |
|
|
while (p != NULL) { |
1436 |
siliconforks |
179 |
free(p->file_coverage->coverage_lines); |
1437 |
|
|
if (p->file_coverage->source_lines != NULL) { |
1438 |
|
|
for (uint32 i = 0; i < p->file_coverage->num_source_lines; i++) { |
1439 |
|
|
free(p->file_coverage->source_lines[i]); |
1440 |
|
|
} |
1441 |
|
|
free(p->file_coverage->source_lines); |
1442 |
|
|
} |
1443 |
siliconforks |
116 |
free(p->file_coverage->id); |
1444 |
|
|
free(p->file_coverage); |
1445 |
|
|
struct FileCoverageList * q = p; |
1446 |
|
|
p = p->next; |
1447 |
|
|
free(q); |
1448 |
|
|
} |
1449 |
|
|
free(coverage); |
1450 |
|
|
} |
1451 |
|
|
|
1452 |
|
|
struct EnumeratorArg { |
1453 |
|
|
CoverageForeachFunction f; |
1454 |
|
|
void * p; |
1455 |
|
|
}; |
1456 |
|
|
|
1457 |
|
|
static intN enumerator(JSHashEntry * entry, intN i, void * arg) { |
1458 |
|
|
struct EnumeratorArg * enumerator_arg = arg; |
1459 |
|
|
enumerator_arg->f(entry->value, i, enumerator_arg->p); |
1460 |
|
|
return 0; |
1461 |
|
|
} |
1462 |
|
|
|
1463 |
|
|
void Coverage_foreach_file(Coverage * coverage, CoverageForeachFunction f, void * p) { |
1464 |
|
|
struct EnumeratorArg enumerator_arg; |
1465 |
|
|
enumerator_arg.f = f; |
1466 |
|
|
enumerator_arg.p = p; |
1467 |
|
|
JS_HashTableEnumerateEntries(coverage->coverage_table, enumerator, &enumerator_arg); |
1468 |
|
|
} |
1469 |
|
|
|
1470 |
|
|
int jscoverage_parse_json(Coverage * coverage, const uint8_t * json, size_t length) { |
1471 |
siliconforks |
336 |
int result = 0; |
1472 |
|
|
|
1473 |
siliconforks |
116 |
jschar * base = js_InflateString(context, (char *) json, &length); |
1474 |
|
|
if (base == NULL) { |
1475 |
|
|
fatal("out of memory"); |
1476 |
|
|
} |
1477 |
|
|
|
1478 |
|
|
jschar * parenthesized_json = xnew(jschar, addst(length, 2)); |
1479 |
|
|
parenthesized_json[0] = '('; |
1480 |
|
|
memcpy(parenthesized_json + 1, base, mulst(length, sizeof(jschar))); |
1481 |
|
|
parenthesized_json[length + 1] = ')'; |
1482 |
|
|
|
1483 |
|
|
JS_free(context, base); |
1484 |
|
|
|
1485 |
siliconforks |
336 |
JSParseContext parse_context; |
1486 |
|
|
if (! js_InitParseContext(context, &parse_context, NULL, NULL, parenthesized_json, length + 2, NULL, NULL, 1)) { |
1487 |
|
|
free(parenthesized_json); |
1488 |
|
|
return -1; |
1489 |
siliconforks |
116 |
} |
1490 |
siliconforks |
336 |
JSParseNode * root = js_ParseScript(context, global, &parse_context); |
1491 |
siliconforks |
116 |
free(parenthesized_json); |
1492 |
|
|
if (root == NULL) { |
1493 |
siliconforks |
336 |
result = -1; |
1494 |
|
|
goto done; |
1495 |
siliconforks |
116 |
} |
1496 |
|
|
|
1497 |
|
|
/* root node must be TOK_LC */ |
1498 |
|
|
if (root->pn_type != TOK_LC) { |
1499 |
siliconforks |
336 |
result = -1; |
1500 |
|
|
goto done; |
1501 |
siliconforks |
116 |
} |
1502 |
|
|
JSParseNode * semi = root->pn_u.list.head; |
1503 |
|
|
|
1504 |
|
|
/* the list must be TOK_SEMI and it must contain only one element */ |
1505 |
|
|
if (semi->pn_type != TOK_SEMI || semi->pn_next != NULL) { |
1506 |
siliconforks |
336 |
result = -1; |
1507 |
|
|
goto done; |
1508 |
siliconforks |
116 |
} |
1509 |
|
|
JSParseNode * parenthesized = semi->pn_kid; |
1510 |
|
|
|
1511 |
|
|
/* this must be a parenthesized expression */ |
1512 |
|
|
if (parenthesized->pn_type != TOK_RP) { |
1513 |
siliconforks |
336 |
result = -1; |
1514 |
|
|
goto done; |
1515 |
siliconforks |
116 |
} |
1516 |
|
|
JSParseNode * object = parenthesized->pn_kid; |
1517 |
|
|
|
1518 |
|
|
/* this must be an object literal */ |
1519 |
|
|
if (object->pn_type != TOK_RC) { |
1520 |
siliconforks |
336 |
result = -1; |
1521 |
|
|
goto done; |
1522 |
siliconforks |
116 |
} |
1523 |
|
|
|
1524 |
|
|
for (JSParseNode * p = object->pn_head; p != NULL; p = p->pn_next) { |
1525 |
|
|
/* every element of this list must be TOK_COLON */ |
1526 |
|
|
if (p->pn_type != TOK_COLON) { |
1527 |
siliconforks |
336 |
result = -1; |
1528 |
|
|
goto done; |
1529 |
siliconforks |
116 |
} |
1530 |
|
|
|
1531 |
|
|
/* the key must be a string representing the file */ |
1532 |
|
|
JSParseNode * key = p->pn_left; |
1533 |
|
|
if (key->pn_type != TOK_STRING || ! ATOM_IS_STRING(key->pn_atom)) { |
1534 |
siliconforks |
336 |
result = -1; |
1535 |
|
|
goto done; |
1536 |
siliconforks |
116 |
} |
1537 |
|
|
char * id_bytes = JS_GetStringBytes(ATOM_TO_STRING(key->pn_atom)); |
1538 |
|
|
|
1539 |
|
|
/* the value must be an object literal OR an array */ |
1540 |
|
|
JSParseNode * value = p->pn_right; |
1541 |
|
|
if (! (value->pn_type == TOK_RC || value->pn_type == TOK_RB)) { |
1542 |
siliconforks |
336 |
result = -1; |
1543 |
|
|
goto done; |
1544 |
siliconforks |
116 |
} |
1545 |
|
|
|
1546 |
|
|
JSParseNode * array = NULL; |
1547 |
|
|
JSParseNode * source = NULL; |
1548 |
|
|
if (value->pn_type == TOK_RB) { |
1549 |
|
|
/* an array */ |
1550 |
|
|
array = value; |
1551 |
|
|
} |
1552 |
|
|
else if (value->pn_type == TOK_RC) { |
1553 |
|
|
/* an object literal */ |
1554 |
|
|
if (value->pn_count != 2) { |
1555 |
siliconforks |
336 |
result = -1; |
1556 |
|
|
goto done; |
1557 |
siliconforks |
116 |
} |
1558 |
|
|
for (JSParseNode * element = value->pn_head; element != NULL; element = element->pn_next) { |
1559 |
|
|
if (element->pn_type != TOK_COLON) { |
1560 |
siliconforks |
336 |
result = -1; |
1561 |
|
|
goto done; |
1562 |
siliconforks |
116 |
} |
1563 |
|
|
JSParseNode * left = element->pn_left; |
1564 |
|
|
if (left->pn_type != TOK_STRING || ! ATOM_IS_STRING(left->pn_atom)) { |
1565 |
siliconforks |
336 |
result = -1; |
1566 |
|
|
goto done; |
1567 |
siliconforks |
116 |
} |
1568 |
|
|
const char * s = JS_GetStringBytes(ATOM_TO_STRING(left->pn_atom)); |
1569 |
|
|
if (strcmp(s, "coverage") == 0) { |
1570 |
|
|
array = element->pn_right; |
1571 |
|
|
if (array->pn_type != TOK_RB) { |
1572 |
siliconforks |
336 |
result = -1; |
1573 |
|
|
goto done; |
1574 |
siliconforks |
116 |
} |
1575 |
|
|
} |
1576 |
|
|
else if (strcmp(s, "source") == 0) { |
1577 |
|
|
source = element->pn_right; |
1578 |
siliconforks |
179 |
if (source->pn_type != TOK_RB) { |
1579 |
siliconforks |
336 |
result = -1; |
1580 |
|
|
goto done; |
1581 |
siliconforks |
116 |
} |
1582 |
|
|
} |
1583 |
|
|
else { |
1584 |
siliconforks |
336 |
result = -1; |
1585 |
|
|
goto done; |
1586 |
siliconforks |
116 |
} |
1587 |
|
|
} |
1588 |
|
|
} |
1589 |
|
|
else { |
1590 |
siliconforks |
336 |
result = -1; |
1591 |
|
|
goto done; |
1592 |
siliconforks |
116 |
} |
1593 |
|
|
|
1594 |
|
|
if (array == NULL) { |
1595 |
siliconforks |
336 |
result = -1; |
1596 |
|
|
goto done; |
1597 |
siliconforks |
116 |
} |
1598 |
|
|
|
1599 |
|
|
/* look up the file in the coverage table */ |
1600 |
|
|
FileCoverage * file_coverage = JS_HashTableLookup(coverage->coverage_table, id_bytes); |
1601 |
|
|
if (file_coverage == NULL) { |
1602 |
|
|
/* not there: create a new one */ |
1603 |
|
|
char * id = xstrdup(id_bytes); |
1604 |
|
|
file_coverage = xmalloc(sizeof(FileCoverage)); |
1605 |
|
|
file_coverage->id = id; |
1606 |
siliconforks |
179 |
file_coverage->num_coverage_lines = array->pn_count; |
1607 |
|
|
file_coverage->coverage_lines = xnew(int, array->pn_count); |
1608 |
siliconforks |
245 |
file_coverage->source_lines = NULL; |
1609 |
siliconforks |
116 |
|
1610 |
|
|
/* set coverage for all lines */ |
1611 |
|
|
uint32 i = 0; |
1612 |
|
|
for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) { |
1613 |
|
|
if (element->pn_type == TOK_NUMBER) { |
1614 |
siliconforks |
179 |
file_coverage->coverage_lines[i] = (int) element->pn_dval; |
1615 |
siliconforks |
116 |
} |
1616 |
|
|
else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) { |
1617 |
siliconforks |
179 |
file_coverage->coverage_lines[i] = -1; |
1618 |
siliconforks |
116 |
} |
1619 |
|
|
else { |
1620 |
siliconforks |
336 |
result = -1; |
1621 |
|
|
goto done; |
1622 |
siliconforks |
116 |
} |
1623 |
|
|
} |
1624 |
|
|
assert(i == array->pn_count); |
1625 |
|
|
|
1626 |
|
|
/* add to the hash table */ |
1627 |
|
|
JS_HashTableAdd(coverage->coverage_table, id, file_coverage); |
1628 |
|
|
struct FileCoverageList * coverage_list = xmalloc(sizeof(struct FileCoverageList)); |
1629 |
|
|
coverage_list->file_coverage = file_coverage; |
1630 |
|
|
coverage_list->next = coverage->coverage_list; |
1631 |
|
|
coverage->coverage_list = coverage_list; |
1632 |
|
|
} |
1633 |
|
|
else { |
1634 |
|
|
/* sanity check */ |
1635 |
|
|
assert(strcmp(file_coverage->id, id_bytes) == 0); |
1636 |
siliconforks |
179 |
if (file_coverage->num_coverage_lines != array->pn_count) { |
1637 |
siliconforks |
336 |
result = -2; |
1638 |
|
|
goto done; |
1639 |
siliconforks |
116 |
} |
1640 |
|
|
|
1641 |
|
|
/* merge the coverage */ |
1642 |
|
|
uint32 i = 0; |
1643 |
|
|
for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) { |
1644 |
|
|
if (element->pn_type == TOK_NUMBER) { |
1645 |
siliconforks |
179 |
if (file_coverage->coverage_lines[i] == -1) { |
1646 |
siliconforks |
336 |
result = -2; |
1647 |
|
|
goto done; |
1648 |
siliconforks |
116 |
} |
1649 |
siliconforks |
179 |
file_coverage->coverage_lines[i] += (int) element->pn_dval; |
1650 |
siliconforks |
116 |
} |
1651 |
|
|
else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) { |
1652 |
siliconforks |
179 |
if (file_coverage->coverage_lines[i] != -1) { |
1653 |
siliconforks |
336 |
result = -2; |
1654 |
|
|
goto done; |
1655 |
siliconforks |
116 |
} |
1656 |
|
|
} |
1657 |
|
|
else { |
1658 |
siliconforks |
336 |
result = -1; |
1659 |
|
|
goto done; |
1660 |
siliconforks |
116 |
} |
1661 |
|
|
} |
1662 |
|
|
assert(i == array->pn_count); |
1663 |
siliconforks |
245 |
} |
1664 |
siliconforks |
116 |
|
1665 |
siliconforks |
245 |
/* if this JSON file has source, use it */ |
1666 |
|
|
if (file_coverage->source_lines == NULL && source != NULL) { |
1667 |
|
|
file_coverage->num_source_lines = source->pn_count; |
1668 |
|
|
file_coverage->source_lines = xnew(char *, source->pn_count); |
1669 |
|
|
uint32 i = 0; |
1670 |
|
|
for (JSParseNode * element = source->pn_head; element != NULL; element = element->pn_next, i++) { |
1671 |
|
|
if (element->pn_type != TOK_STRING) { |
1672 |
siliconforks |
336 |
result = -1; |
1673 |
|
|
goto done; |
1674 |
siliconforks |
179 |
} |
1675 |
siliconforks |
245 |
file_coverage->source_lines[i] = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(element->pn_atom))); |
1676 |
siliconforks |
116 |
} |
1677 |
siliconforks |
245 |
assert(i == source->pn_count); |
1678 |
siliconforks |
116 |
} |
1679 |
|
|
} |
1680 |
|
|
|
1681 |
siliconforks |
336 |
done: |
1682 |
|
|
js_FinishParseContext(context, &parse_context); |
1683 |
|
|
return result; |
1684 |
siliconforks |
116 |
} |