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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
*/ |
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#include <config.h> |
21 |
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22 |
#include "instrument-js.h" |
#include "instrument-js.h" |
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24 |
#include <assert.h> |
#include <assert.h> |
26 |
#include <string.h> |
#include <string.h> |
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|
28 |
#include <jsapi.h> |
#include <jsapi.h> |
29 |
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#include <jsarena.h> |
30 |
#include <jsatom.h> |
#include <jsatom.h> |
31 |
|
#include <jsexn.h> |
32 |
#include <jsfun.h> |
#include <jsfun.h> |
33 |
#include <jsinterp.h> |
#include <jsinterp.h> |
34 |
|
#include <jsiter.h> |
35 |
#include <jsparse.h> |
#include <jsparse.h> |
36 |
#include <jsregexp.h> |
#include <jsregexp.h> |
37 |
#include <jsscope.h> |
#include <jsscope.h> |
38 |
#include <jsstr.h> |
#include <jsstr.h> |
39 |
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|
40 |
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#include "encoding.h" |
41 |
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#include "global.h" |
42 |
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#include "highlight.h" |
43 |
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#include "resource-manager.h" |
44 |
#include "util.h" |
#include "util.h" |
45 |
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|
46 |
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struct IfDirective { |
47 |
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const jschar * condition_start; |
48 |
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const jschar * condition_end; |
49 |
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uint16_t start_line; |
50 |
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uint16_t end_line; |
51 |
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struct IfDirective * next; |
52 |
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}; |
53 |
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|
54 |
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static bool * exclusive_directives = NULL; |
55 |
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|
56 |
static JSRuntime * runtime = NULL; |
static JSRuntime * runtime = NULL; |
57 |
static JSContext * context = NULL; |
static JSContext * context = NULL; |
58 |
static JSObject * global = NULL; |
static JSObject * global = NULL; |
59 |
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static JSVersion js_version = JSVERSION_ECMA_3; |
60 |
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|
61 |
/* |
/* |
62 |
JSParseNode objects store line numbers starting from 1. |
JSParseNode objects store line numbers starting from 1. |
64 |
*/ |
*/ |
65 |
static const char * file_id = NULL; |
static const char * file_id = NULL; |
66 |
static char * lines = NULL; |
static char * lines = NULL; |
67 |
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static uint16_t num_lines = 0; |
68 |
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|
69 |
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void jscoverage_set_js_version(const char * version) { |
70 |
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js_version = atoi(version); |
71 |
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} |
72 |
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|
73 |
void jscoverage_init(void) { |
void jscoverage_init(void) { |
74 |
runtime = JS_NewRuntime(8L * 1024L * 1024L); |
runtime = JS_NewRuntime(8L * 1024L * 1024L); |
81 |
fatal("cannot create context"); |
fatal("cannot create context"); |
82 |
} |
} |
83 |
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|
84 |
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JS_SetVersion(context, js_version); |
85 |
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|
86 |
global = JS_NewObject(context, NULL, NULL, NULL); |
global = JS_NewObject(context, NULL, NULL, NULL); |
87 |
if (global == NULL) { |
if (global == NULL) { |
88 |
fatal("cannot create global object"); |
fatal("cannot create global object"); |
98 |
JS_DestroyRuntime(runtime); |
JS_DestroyRuntime(runtime); |
99 |
} |
} |
100 |
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|
101 |
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static void print_javascript(const jschar * characters, size_t num_characters, Stream * f) { |
102 |
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for (size_t i = 0; i < num_characters; i++) { |
103 |
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jschar c = characters[i]; |
104 |
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/* |
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XXX does not handle no-break space, other unicode "space separator" |
106 |
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*/ |
107 |
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switch (c) { |
108 |
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case 0x9: |
109 |
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case 0xB: |
110 |
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case 0xC: |
111 |
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Stream_write_char(f, c); |
112 |
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break; |
113 |
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default: |
114 |
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if (32 <= c && c <= 126) { |
115 |
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Stream_write_char(f, c); |
116 |
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} |
117 |
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else { |
118 |
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Stream_printf(f, "\\u%04x", c); |
119 |
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} |
120 |
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break; |
121 |
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} |
122 |
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} |
123 |
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} |
124 |
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|
125 |
static void print_string(JSString * s, Stream * f) { |
static void print_string(JSString * s, Stream * f) { |
126 |
for (int i = 0; i < s->length; i++) { |
size_t length = JSSTRING_LENGTH(s); |
127 |
char c = s->chars[i]; |
jschar * characters = JSSTRING_CHARS(s); |
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Stream_write_char(f, c); |
for (size_t i = 0; i < length; i++) { |
129 |
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jschar c = characters[i]; |
130 |
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if (32 <= c && c <= 126) { |
131 |
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switch (c) { |
132 |
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case '"': |
133 |
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Stream_write_string(f, "\\\""); |
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break; |
135 |
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/* |
136 |
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case '\'': |
137 |
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Stream_write_string(f, "\\'"); |
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break; |
139 |
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*/ |
140 |
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case '\\': |
141 |
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Stream_write_string(f, "\\\\"); |
142 |
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break; |
143 |
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default: |
144 |
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Stream_write_char(f, c); |
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break; |
146 |
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} |
147 |
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} |
148 |
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else { |
149 |
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switch (c) { |
150 |
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case 0x8: |
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Stream_write_string(f, "\\b"); |
152 |
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break; |
153 |
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case 0x9: |
154 |
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Stream_write_string(f, "\\t"); |
155 |
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break; |
156 |
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case 0xa: |
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Stream_write_string(f, "\\n"); |
158 |
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break; |
159 |
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/* IE doesn't support this */ |
160 |
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/* |
161 |
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case 0xb: |
162 |
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Stream_write_string(f, "\\v"); |
163 |
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break; |
164 |
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*/ |
165 |
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case 0xc: |
166 |
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Stream_write_string(f, "\\f"); |
167 |
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break; |
168 |
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case 0xd: |
169 |
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Stream_write_string(f, "\\r"); |
170 |
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break; |
171 |
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default: |
172 |
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Stream_printf(f, "\\u%04x", c); |
173 |
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break; |
174 |
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} |
175 |
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} |
176 |
} |
} |
177 |
} |
} |
178 |
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|
182 |
print_string(s, f); |
print_string(s, f); |
183 |
} |
} |
184 |
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|
185 |
static void print_string_jsval(jsval value, Stream * f) { |
static void print_regex(jsval value, Stream * f) { |
186 |
assert(JSVAL_IS_STRING(value)); |
assert(JSVAL_IS_STRING(value)); |
187 |
JSString * s = JSVAL_TO_STRING(value); |
JSString * s = JSVAL_TO_STRING(value); |
188 |
print_string(s, f); |
size_t length = JSSTRING_LENGTH(s); |
189 |
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jschar * characters = JSSTRING_CHARS(s); |
190 |
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for (size_t i = 0; i < length; i++) { |
191 |
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jschar c = characters[i]; |
192 |
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if (32 <= c && c <= 126) { |
193 |
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Stream_write_char(f, c); |
194 |
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} |
195 |
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else { |
196 |
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Stream_printf(f, "\\u%04x", c); |
197 |
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} |
198 |
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} |
199 |
} |
} |
200 |
|
|
201 |
static void print_quoted_string_atom(JSAtom * atom, Stream * f) { |
static void print_quoted_string_atom(JSAtom * atom, Stream * f) { |
202 |
assert(ATOM_IS_STRING(atom)); |
assert(ATOM_IS_STRING(atom)); |
203 |
JSString * s = ATOM_TO_STRING(atom); |
JSString * s = ATOM_TO_STRING(atom); |
204 |
JSString * quoted = js_QuoteString(context, s, '"'); |
Stream_write_char(f, '"'); |
205 |
print_string(quoted, f); |
print_string(s, f); |
206 |
|
Stream_write_char(f, '"'); |
207 |
} |
} |
208 |
|
|
209 |
static const char * get_op(uint8 op) { |
static const char * get_op(uint8 op) { |
210 |
switch(op) { |
switch(op) { |
211 |
|
case JSOP_OR: |
212 |
|
return "||"; |
213 |
|
case JSOP_AND: |
214 |
|
return "&&"; |
215 |
case JSOP_BITOR: |
case JSOP_BITOR: |
216 |
return "|"; |
return "|"; |
217 |
case JSOP_BITXOR: |
case JSOP_BITXOR: |
222 |
return "=="; |
return "=="; |
223 |
case JSOP_NE: |
case JSOP_NE: |
224 |
return "!="; |
return "!="; |
225 |
case JSOP_NEW_EQ: |
case JSOP_STRICTEQ: |
226 |
return "==="; |
return "==="; |
227 |
case JSOP_NEW_NE: |
case JSOP_STRICTNE: |
228 |
return "!=="; |
return "!=="; |
229 |
case JSOP_LT: |
case JSOP_LT: |
230 |
return "<"; |
return "<"; |
256 |
} |
} |
257 |
|
|
258 |
static void instrument_expression(JSParseNode * node, Stream * f); |
static void instrument_expression(JSParseNode * node, Stream * f); |
259 |
static void instrument_statement(JSParseNode * node, Stream * f, int indent); |
static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if); |
260 |
|
|
261 |
static void instrument_function(JSParseNode * node, Stream * f, int indent) { |
enum FunctionType { |
262 |
assert(node->pn_arity == PN_FUNC); |
FUNCTION_NORMAL, |
263 |
assert(ATOM_IS_OBJECT(node->pn_funAtom)); |
FUNCTION_GETTER_OR_SETTER |
264 |
JSObject * object = ATOM_TO_OBJECT(node->pn_funAtom); |
}; |
265 |
assert(JS_ObjectIsFunction(context, object)); |
|
266 |
JSFunction * function = (JSFunction *) JS_GetPrivate(context, object); |
static void instrument_function(JSParseNode * node, Stream * f, int indent, enum FunctionType type) { |
267 |
assert(function); |
assert(node->pn_type == TOK_FUNCTION); |
268 |
assert(object == function->object); |
assert(node->pn_arity == PN_FUNC); |
269 |
Stream_printf(f, "%*s", indent, ""); |
JSObject * object = node->pn_funpob->object; |
270 |
|
assert(JS_ObjectIsFunction(context, object)); |
271 |
|
JSFunction * function = (JSFunction *) JS_GetPrivate(context, object); |
272 |
|
assert(function); |
273 |
|
assert(object == &function->object); |
274 |
|
Stream_printf(f, "%*s", indent, ""); |
275 |
|
if (type == FUNCTION_NORMAL) { |
276 |
Stream_write_string(f, "function"); |
Stream_write_string(f, "function"); |
277 |
|
} |
278 |
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|
279 |
/* function name */ |
/* function name */ |
280 |
if (function->atom) { |
if (function->atom) { |
281 |
Stream_write_char(f, ' '); |
Stream_write_char(f, ' '); |
282 |
print_string_atom(function->atom, f); |
print_string_atom(function->atom, f); |
283 |
} |
} |
284 |
|
|
285 |
/* function parameters */ |
/* |
286 |
Stream_write_string(f, "("); |
function parameters - see JS_DecompileFunction in jsapi.cpp, which calls |
287 |
JSAtom ** params = xmalloc(function->nargs * sizeof(JSAtom *)); |
js_DecompileFunction in jsopcode.cpp |
288 |
for (int i = 0; i < function->nargs; i++) { |
*/ |
289 |
/* initialize to NULL for sanity check */ |
Stream_write_string(f, "("); |
290 |
params[i] = NULL; |
JSArenaPool pool; |
291 |
} |
JS_INIT_ARENA_POOL(&pool, "instrument_function", 256, 1, &context->scriptStackQuota); |
292 |
JSScope * scope = OBJ_SCOPE(object); |
jsuword * local_names = NULL; |
293 |
for (JSScopeProperty * scope_property = SCOPE_LAST_PROP(scope); scope_property != NULL; scope_property = scope_property->parent) { |
if (JS_GET_LOCAL_NAME_COUNT(function)) { |
294 |
if (scope_property->getter != js_GetArgument) { |
local_names = js_GetLocalNameArray(context, function, &pool); |
295 |
continue; |
if (local_names == NULL) { |
296 |
} |
fatal("out of memory"); |
|
assert(scope_property->flags & SPROP_HAS_SHORTID); |
|
|
assert((uint16) scope_property->shortid < function->nargs); |
|
|
assert(JSID_IS_ATOM(scope_property->id)); |
|
|
params[(uint16) scope_property->shortid] = JSID_TO_ATOM(scope_property->id); |
|
297 |
} |
} |
298 |
for (int i = 0; i < function->nargs; i++) { |
} |
299 |
assert(params[i] != NULL); |
for (int i = 0; i < function->nargs; i++) { |
300 |
if (i > 0) { |
if (i > 0) { |
301 |
Stream_write_string(f, ", "); |
Stream_write_string(f, ", "); |
|
} |
|
|
if (ATOM_IS_STRING(params[i])) { |
|
|
print_string_atom(params[i], f); |
|
|
} |
|
302 |
} |
} |
303 |
Stream_write_string(f, ") {\n"); |
JSAtom * param = JS_LOCAL_NAME_TO_ATOM(local_names[i]); |
304 |
free(params); |
print_string_atom(param, f); |
305 |
|
} |
306 |
|
JS_FinishArenaPool(&pool); |
307 |
|
Stream_write_string(f, ") {\n"); |
308 |
|
|
309 |
/* function body */ |
/* function body */ |
310 |
instrument_statement(node->pn_body, f, indent + 2); |
instrument_statement(node->pn_body, f, indent + 2, false); |
311 |
|
|
312 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
313 |
} |
} |
314 |
|
|
315 |
static void instrument_function_call(JSParseNode * node, Stream * f) { |
static void instrument_function_call(JSParseNode * node, Stream * f) { |
340 |
static void instrument_expression(JSParseNode * node, Stream * f) { |
static void instrument_expression(JSParseNode * node, Stream * f) { |
341 |
switch (node->pn_type) { |
switch (node->pn_type) { |
342 |
case TOK_FUNCTION: |
case TOK_FUNCTION: |
343 |
instrument_function(node, f, 0); |
instrument_function(node, f, 0, FUNCTION_NORMAL); |
344 |
break; |
break; |
345 |
case TOK_COMMA: |
case TOK_COMMA: |
346 |
for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) { |
for (struct JSParseNode * p = node->pn_head; p != NULL; p = p->pn_next) { |
382 |
instrument_expression(node->pn_kid3, f); |
instrument_expression(node->pn_kid3, f); |
383 |
break; |
break; |
384 |
case TOK_OR: |
case TOK_OR: |
|
instrument_expression(node->pn_left, f); |
|
|
Stream_write_string(f, " || "); |
|
|
instrument_expression(node->pn_right, f); |
|
|
break; |
|
385 |
case TOK_AND: |
case TOK_AND: |
|
instrument_expression(node->pn_left, f); |
|
|
Stream_write_string(f, " && "); |
|
|
instrument_expression(node->pn_right, f); |
|
|
break; |
|
386 |
case TOK_BITOR: |
case TOK_BITOR: |
387 |
case TOK_BITXOR: |
case TOK_BITXOR: |
388 |
case TOK_BITAND: |
case TOK_BITAND: |
495 |
assert(ATOM_IS_STRING(node->pn_atom)); |
assert(ATOM_IS_STRING(node->pn_atom)); |
496 |
{ |
{ |
497 |
JSString * s = ATOM_TO_STRING(node->pn_atom); |
JSString * s = ATOM_TO_STRING(node->pn_atom); |
498 |
/* XXX - semantics changed in 1.7 */ |
bool is_keyword = (js_CheckKeyword(JSSTRING_CHARS(s), JSSTRING_LENGTH(s)) != TOK_EOF); |
499 |
if (! ATOM_KEYWORD(node->pn_atom) && js_IsIdentifier(s)) { |
if (! is_keyword && js_IsIdentifier(s)) { |
500 |
Stream_write_char(f, '.'); |
Stream_write_char(f, '.'); |
501 |
print_string_atom(node->pn_atom, f); |
print_string_atom(node->pn_atom, f); |
502 |
} |
} |
539 |
if (p != node->pn_head) { |
if (p != node->pn_head) { |
540 |
Stream_write_string(f, ", "); |
Stream_write_string(f, ", "); |
541 |
} |
} |
542 |
instrument_expression(p->pn_left, f); |
|
543 |
Stream_write_string(f, ": "); |
/* check whether this is a getter or setter */ |
544 |
instrument_expression(p->pn_right, f); |
switch (p->pn_op) { |
545 |
|
case JSOP_GETTER: |
546 |
|
case JSOP_SETTER: |
547 |
|
if (p->pn_op == JSOP_GETTER) { |
548 |
|
Stream_write_string(f, "get "); |
549 |
|
} |
550 |
|
else { |
551 |
|
Stream_write_string(f, "set "); |
552 |
|
} |
553 |
|
instrument_expression(p->pn_left, f); |
554 |
|
if (p->pn_right->pn_type != TOK_FUNCTION) { |
555 |
|
fatal("parse error: expected function"); |
556 |
|
} |
557 |
|
instrument_function(p->pn_right, f, 0, FUNCTION_GETTER_OR_SETTER); |
558 |
|
break; |
559 |
|
default: |
560 |
|
instrument_expression(p->pn_left, f); |
561 |
|
Stream_write_string(f, ": "); |
562 |
|
instrument_expression(p->pn_right, f); |
563 |
|
break; |
564 |
|
} |
565 |
} |
} |
566 |
Stream_write_char(f, '}'); |
Stream_write_char(f, '}'); |
567 |
break; |
break; |
576 |
case TOK_STRING: |
case TOK_STRING: |
577 |
print_quoted_string_atom(node->pn_atom, f); |
print_quoted_string_atom(node->pn_atom, f); |
578 |
break; |
break; |
579 |
case TOK_OBJECT: |
case TOK_REGEXP: |
580 |
switch (node->pn_op) { |
assert(node->pn_op == JSOP_REGEXP); |
581 |
case JSOP_OBJECT: |
{ |
582 |
/* I assume this is JSOP_REGEXP */ |
JSObject * object = node->pn_pob->object; |
583 |
abort(); |
jsval result; |
584 |
break; |
js_regexp_toString(context, object, &result); |
585 |
case JSOP_REGEXP: |
print_regex(result, f); |
|
assert(ATOM_IS_OBJECT(node->pn_atom)); |
|
|
{ |
|
|
JSObject * object = ATOM_TO_OBJECT(node->pn_atom); |
|
|
jsval result; |
|
|
js_regexp_toString(context, object, 0, NULL, &result); |
|
|
print_string_jsval(result, f); |
|
|
} |
|
|
break; |
|
|
default: |
|
|
abort(); |
|
|
break; |
|
586 |
} |
} |
587 |
break; |
break; |
588 |
case TOK_NUMBER: |
case TOK_NUMBER: |
651 |
} |
} |
652 |
} |
} |
653 |
|
|
654 |
static void output_statement(JSParseNode * node, Stream * f, int indent) { |
static void output_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) { |
655 |
switch (node->pn_type) { |
switch (node->pn_type) { |
656 |
case TOK_FUNCTION: |
case TOK_FUNCTION: |
657 |
instrument_function(node, f, indent); |
instrument_function(node, f, indent, FUNCTION_NORMAL); |
658 |
break; |
break; |
659 |
case TOK_LC: |
case TOK_LC: |
660 |
assert(node->pn_arity == PN_LIST); |
assert(node->pn_arity == PN_LIST); |
662 |
Stream_write_string(f, "{\n"); |
Stream_write_string(f, "{\n"); |
663 |
*/ |
*/ |
664 |
for (struct JSParseNode * p = node->pn_u.list.head; p != NULL; p = p->pn_next) { |
for (struct JSParseNode * p = node->pn_u.list.head; p != NULL; p = p->pn_next) { |
665 |
instrument_statement(p, f, indent); |
instrument_statement(p, f, indent, false); |
666 |
} |
} |
667 |
/* |
/* |
668 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
670 |
*/ |
*/ |
671 |
break; |
break; |
672 |
case TOK_IF: |
case TOK_IF: |
673 |
|
{ |
674 |
assert(node->pn_arity == PN_TERNARY); |
assert(node->pn_arity == PN_TERNARY); |
675 |
|
|
676 |
|
uint16_t line = node->pn_pos.begin.lineno; |
677 |
|
if (! is_jscoverage_if) { |
678 |
|
if (line > num_lines) { |
679 |
|
fatal("%s: script contains more than 65,535 lines", file_id); |
680 |
|
} |
681 |
|
if (line >= 2 && exclusive_directives[line - 2]) { |
682 |
|
is_jscoverage_if = true; |
683 |
|
} |
684 |
|
} |
685 |
|
|
686 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
687 |
Stream_write_string(f, "if ("); |
Stream_write_string(f, "if ("); |
688 |
instrument_expression(node->pn_kid1, f); |
instrument_expression(node->pn_kid1, f); |
689 |
Stream_write_string(f, ") {\n"); |
Stream_write_string(f, ") {\n"); |
690 |
instrument_statement(node->pn_kid2, f, indent + 2); |
if (is_jscoverage_if && node->pn_kid3) { |
691 |
|
uint16_t else_start = node->pn_kid3->pn_pos.begin.lineno; |
692 |
|
uint16_t else_end = node->pn_kid3->pn_pos.end.lineno + 1; |
693 |
|
Stream_printf(f, "%*s", indent + 2, ""); |
694 |
|
Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, else_start, else_end); |
695 |
|
} |
696 |
|
instrument_statement(node->pn_kid2, f, indent + 2, false); |
697 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
698 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
699 |
if (node->pn_kid3) { |
|
700 |
|
if (node->pn_kid3 || is_jscoverage_if) { |
701 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
702 |
Stream_write_string(f, "else {\n"); |
Stream_write_string(f, "else {\n"); |
703 |
instrument_statement(node->pn_kid3, f, indent + 2); |
|
704 |
|
if (is_jscoverage_if) { |
705 |
|
uint16_t if_start = node->pn_kid2->pn_pos.begin.lineno + 1; |
706 |
|
uint16_t if_end = node->pn_kid2->pn_pos.end.lineno + 1; |
707 |
|
Stream_printf(f, "%*s", indent + 2, ""); |
708 |
|
Stream_printf(f, "_$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_start, if_end); |
709 |
|
} |
710 |
|
|
711 |
|
if (node->pn_kid3) { |
712 |
|
instrument_statement(node->pn_kid3, f, indent + 2, is_jscoverage_if); |
713 |
|
} |
714 |
|
|
715 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
716 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
717 |
} |
} |
718 |
|
|
719 |
break; |
break; |
720 |
|
} |
721 |
case TOK_SWITCH: |
case TOK_SWITCH: |
722 |
assert(node->pn_arity == PN_BINARY); |
assert(node->pn_arity == PN_BINARY); |
723 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
739 |
abort(); |
abort(); |
740 |
break; |
break; |
741 |
} |
} |
742 |
instrument_statement(p->pn_right, f, indent + 2); |
instrument_statement(p->pn_right, f, indent + 2, false); |
743 |
} |
} |
744 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
745 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
754 |
Stream_write_string(f, "while ("); |
Stream_write_string(f, "while ("); |
755 |
instrument_expression(node->pn_left, f); |
instrument_expression(node->pn_left, f); |
756 |
Stream_write_string(f, ") {\n"); |
Stream_write_string(f, ") {\n"); |
757 |
instrument_statement(node->pn_right, f, indent + 2); |
instrument_statement(node->pn_right, f, indent + 2, false); |
758 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
759 |
break; |
break; |
760 |
case TOK_DO: |
case TOK_DO: |
761 |
assert(node->pn_arity == PN_BINARY); |
assert(node->pn_arity == PN_BINARY); |
762 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
763 |
Stream_write_string(f, "do {\n"); |
Stream_write_string(f, "do {\n"); |
764 |
instrument_statement(node->pn_left, f, indent + 2); |
instrument_statement(node->pn_left, f, indent + 2, false); |
765 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
766 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
767 |
Stream_write_string(f, "while ("); |
Stream_write_string(f, "while ("); |
771 |
case TOK_FOR: |
case TOK_FOR: |
772 |
assert(node->pn_arity == PN_BINARY); |
assert(node->pn_arity == PN_BINARY); |
773 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
774 |
Stream_write_string(f, "for ("); |
Stream_write_string(f, "for "); |
775 |
|
if (node->pn_iflags & JSITER_FOREACH) { |
776 |
|
Stream_write_string(f, "each "); |
777 |
|
} |
778 |
|
Stream_write_char(f, '('); |
779 |
switch (node->pn_left->pn_type) { |
switch (node->pn_left->pn_type) { |
780 |
case TOK_IN: |
case TOK_IN: |
781 |
/* for/in */ |
/* for/in */ |
828 |
break; |
break; |
829 |
} |
} |
830 |
Stream_write_string(f, ") {\n"); |
Stream_write_string(f, ") {\n"); |
831 |
instrument_statement(node->pn_right, f, indent + 2); |
instrument_statement(node->pn_right, f, indent + 2, false); |
832 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
833 |
break; |
break; |
834 |
case TOK_THROW: |
case TOK_THROW: |
841 |
case TOK_TRY: |
case TOK_TRY: |
842 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
843 |
Stream_write_string(f, "try {\n"); |
Stream_write_string(f, "try {\n"); |
844 |
instrument_statement(node->pn_kid1, f, indent + 2); |
instrument_statement(node->pn_kid1, f, indent + 2, false); |
845 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
846 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
847 |
{ |
if (node->pn_kid2) { |
848 |
for (JSParseNode * catch = node->pn_kid2; catch != NULL; catch = catch->pn_kid2) { |
assert(node->pn_kid2->pn_type == TOK_RESERVED); |
849 |
|
for (JSParseNode * scope = node->pn_kid2->pn_head; scope != NULL; scope = scope->pn_next) { |
850 |
|
assert(scope->pn_type == TOK_LEXICALSCOPE); |
851 |
|
JSParseNode * catch = scope->pn_expr; |
852 |
assert(catch->pn_type == TOK_CATCH); |
assert(catch->pn_type == TOK_CATCH); |
853 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
854 |
Stream_write_string(f, "catch ("); |
Stream_write_string(f, "catch ("); |
855 |
assert(catch->pn_kid1->pn_arity == PN_NAME); |
assert(catch->pn_kid1->pn_arity == PN_NAME); |
856 |
print_string_atom(catch->pn_kid1->pn_atom, f); |
print_string_atom(catch->pn_kid1->pn_atom, f); |
857 |
if (catch->pn_kid1->pn_expr) { |
if (catch->pn_kid2) { |
858 |
Stream_write_string(f, " if "); |
Stream_write_string(f, " if "); |
859 |
instrument_expression(catch->pn_kid1->pn_expr, f); |
instrument_expression(catch->pn_kid2, f); |
860 |
} |
} |
861 |
Stream_write_string(f, ") {\n"); |
Stream_write_string(f, ") {\n"); |
862 |
instrument_statement(catch->pn_kid3, f, indent + 2); |
instrument_statement(catch->pn_kid3, f, indent + 2, false); |
863 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
864 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
865 |
} |
} |
867 |
if (node->pn_kid3) { |
if (node->pn_kid3) { |
868 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
869 |
Stream_write_string(f, "finally {\n"); |
Stream_write_string(f, "finally {\n"); |
870 |
instrument_statement(node->pn_kid3, f, indent + 2); |
instrument_statement(node->pn_kid3, f, indent + 2, false); |
871 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
872 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
873 |
} |
} |
893 |
Stream_write_string(f, "with ("); |
Stream_write_string(f, "with ("); |
894 |
instrument_expression(node->pn_left, f); |
instrument_expression(node->pn_left, f); |
895 |
Stream_write_string(f, ") {\n"); |
Stream_write_string(f, ") {\n"); |
896 |
instrument_statement(node->pn_right, f, indent + 2); |
instrument_statement(node->pn_right, f, indent + 2, false); |
897 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
898 |
Stream_write_string(f, "}\n"); |
Stream_write_string(f, "}\n"); |
899 |
break; |
break; |
931 |
/* |
/* |
932 |
... use output_statement instead of instrument_statement. |
... use output_statement instead of instrument_statement. |
933 |
*/ |
*/ |
934 |
output_statement(node->pn_expr, f, indent); |
output_statement(node->pn_expr, f, indent, false); |
935 |
break; |
break; |
936 |
default: |
default: |
937 |
fatal("unsupported node type in file %s: %d", file_id, node->pn_type); |
fatal("unsupported node type in file %s: %d", file_id, node->pn_type); |
943 |
TOK_FUNCTION is handled as a statement and as an expression. |
TOK_FUNCTION is handled as a statement and as an expression. |
944 |
TOK_EXPORT, TOK_IMPORT are not handled. |
TOK_EXPORT, TOK_IMPORT are not handled. |
945 |
*/ |
*/ |
946 |
static void instrument_statement(JSParseNode * node, Stream * f, int indent) { |
static void instrument_statement(JSParseNode * node, Stream * f, int indent, bool is_jscoverage_if) { |
947 |
if (node->pn_type != TOK_LC) { |
if (node->pn_type != TOK_LC) { |
948 |
int line = node->pn_pos.begin.lineno; |
uint16_t line = node->pn_pos.begin.lineno; |
949 |
|
if (line > num_lines) { |
950 |
|
fatal("%s: script contains more than 65,535 lines", file_id); |
951 |
|
} |
952 |
|
|
953 |
/* the root node has line number 0 */ |
/* the root node has line number 0 */ |
954 |
if (line != 0) { |
if (line != 0) { |
955 |
Stream_printf(f, "%*s", indent, ""); |
Stream_printf(f, "%*s", indent, ""); |
957 |
lines[line - 1] = 1; |
lines[line - 1] = 1; |
958 |
} |
} |
959 |
} |
} |
960 |
output_statement(node, f, indent); |
output_statement(node, f, indent, is_jscoverage_if); |
961 |
} |
} |
962 |
|
|
963 |
void jscoverage_instrument_js(const char * id, Stream * input, Stream * output) { |
static bool characters_start_with(const jschar * characters, size_t line_start, size_t line_end, const char * prefix) { |
964 |
file_id = id; |
const jschar * characters_end = characters + line_end; |
965 |
|
const jschar * cp = characters + line_start; |
966 |
/* scan the javascript */ |
const char * bp = prefix; |
967 |
size_t input_length = input->length; |
for (;;) { |
968 |
jschar * base = js_InflateString(context, input->data, &input_length); |
if (*bp == '\0') { |
969 |
if (base == NULL) { |
return true; |
970 |
fatal("out of memory"); |
} |
971 |
|
else if (cp == characters_end) { |
972 |
|
return false; |
973 |
|
} |
974 |
|
else if (*cp != *bp) { |
975 |
|
return false; |
976 |
|
} |
977 |
|
bp++; |
978 |
|
cp++; |
979 |
} |
} |
980 |
JSTokenStream * token_stream = js_NewTokenStream(context, base, input_length, NULL, 1, NULL); |
} |
981 |
if (token_stream == NULL) { |
|
982 |
fatal("cannot create token stream from file: %s", file_id); |
static bool characters_are_white_space(const jschar * characters, size_t line_start, size_t line_end) { |
983 |
|
/* XXX - other Unicode space */ |
984 |
|
const jschar * end = characters + line_end; |
985 |
|
for (const jschar * p = characters + line_start; p < end; p++) { |
986 |
|
jschar c = *p; |
987 |
|
if (c == 0x9 || c == 0xB || c == 0xC || c == 0x20 || c == 0xA0) { |
988 |
|
continue; |
989 |
|
} |
990 |
|
else { |
991 |
|
return false; |
992 |
|
} |
993 |
} |
} |
994 |
|
return true; |
995 |
|
} |
996 |
|
|
997 |
|
static void error_reporter(JSContext * context, const char * message, JSErrorReport * report) { |
998 |
|
fprintf(stderr, "jscoverage: parse error: line %u: %s\n", report->lineno, message); |
999 |
|
} |
1000 |
|
|
1001 |
|
void jscoverage_instrument_js(const char * id, const uint16_t * characters, size_t num_characters, Stream * output) { |
1002 |
|
file_id = id; |
1003 |
|
|
1004 |
/* parse the javascript */ |
/* parse the javascript */ |
1005 |
JSParseNode * node = js_ParseTokenStream(context, global, token_stream); |
JSParseContext parse_context; |
1006 |
|
if (! js_InitParseContext(context, &parse_context, NULL, NULL, characters, num_characters, NULL, NULL, 1)) { |
1007 |
|
fatal("cannot create token stream from file: %s", file_id); |
1008 |
|
} |
1009 |
|
JSErrorReporter old_error_reporter = JS_SetErrorReporter(context, error_reporter); |
1010 |
|
JSParseNode * node = js_ParseScript(context, global, &parse_context); |
1011 |
if (node == NULL) { |
if (node == NULL) { |
1012 |
|
js_ReportUncaughtException(context); |
1013 |
fatal("parse error in file: %s", file_id); |
fatal("parse error in file: %s", file_id); |
1014 |
} |
} |
1015 |
int num_lines = node->pn_pos.end.lineno; |
JS_SetErrorReporter(context, old_error_reporter); |
1016 |
|
num_lines = node->pn_pos.end.lineno; |
1017 |
lines = xmalloc(num_lines); |
lines = xmalloc(num_lines); |
1018 |
for (int i = 0; i < num_lines; i++) { |
for (unsigned int i = 0; i < num_lines; i++) { |
1019 |
lines[i] = 0; |
lines[i] = 0; |
1020 |
} |
} |
1021 |
|
|
1022 |
|
/* search code for conditionals */ |
1023 |
|
exclusive_directives = xnew(bool, num_lines); |
1024 |
|
for (unsigned int i = 0; i < num_lines; i++) { |
1025 |
|
exclusive_directives[i] = false; |
1026 |
|
} |
1027 |
|
|
1028 |
|
bool has_conditionals = false; |
1029 |
|
struct IfDirective * if_directives = NULL; |
1030 |
|
size_t line_number = 0; |
1031 |
|
size_t i = 0; |
1032 |
|
while (i < num_characters) { |
1033 |
|
if (line_number == UINT16_MAX) { |
1034 |
|
fatal("%s: script has more than 65,535 lines", file_id); |
1035 |
|
} |
1036 |
|
line_number++; |
1037 |
|
size_t line_start = i; |
1038 |
|
jschar c; |
1039 |
|
bool done = false; |
1040 |
|
while (! done && i < num_characters) { |
1041 |
|
c = characters[i]; |
1042 |
|
switch (c) { |
1043 |
|
case '\r': |
1044 |
|
case '\n': |
1045 |
|
case 0x2028: |
1046 |
|
case 0x2029: |
1047 |
|
done = true; |
1048 |
|
break; |
1049 |
|
default: |
1050 |
|
i++; |
1051 |
|
} |
1052 |
|
} |
1053 |
|
size_t line_end = i; |
1054 |
|
if (i < num_characters) { |
1055 |
|
i++; |
1056 |
|
if (c == '\r' && i < num_characters && characters[i] == '\n') { |
1057 |
|
i++; |
1058 |
|
} |
1059 |
|
} |
1060 |
|
|
1061 |
|
if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_IF")) { |
1062 |
|
has_conditionals = true; |
1063 |
|
|
1064 |
|
if (characters_are_white_space(characters, line_start + 16, line_end)) { |
1065 |
|
exclusive_directives[line_number - 1] = true; |
1066 |
|
} |
1067 |
|
else { |
1068 |
|
struct IfDirective * if_directive = xnew(struct IfDirective, 1); |
1069 |
|
if_directive->condition_start = characters + line_start + 16; |
1070 |
|
if_directive->condition_end = characters + line_end; |
1071 |
|
if_directive->start_line = line_number; |
1072 |
|
if_directive->end_line = 0; |
1073 |
|
if_directive->next = if_directives; |
1074 |
|
if_directives = if_directive; |
1075 |
|
} |
1076 |
|
} |
1077 |
|
else if (characters_start_with(characters, line_start, line_end, "//#JSCOVERAGE_ENDIF")) { |
1078 |
|
for (struct IfDirective * p = if_directives; p != NULL; p = p->next) { |
1079 |
|
if (p->end_line == 0) { |
1080 |
|
p->end_line = line_number; |
1081 |
|
break; |
1082 |
|
} |
1083 |
|
} |
1084 |
|
} |
1085 |
|
} |
1086 |
|
|
1087 |
/* |
/* |
1088 |
An instrumented JavaScript file has 3 sections: |
An instrumented JavaScript file has 4 sections: |
1089 |
1. initialization |
1. initialization |
1090 |
2. instrumented source code |
2. instrumented source code |
1091 |
3. original source code (TODO) |
3. conditionals |
1092 |
|
4. original source code |
1093 |
*/ |
*/ |
1094 |
|
|
1095 |
Stream * instrumented = Stream_new(0); |
Stream * instrumented = Stream_new(0); |
1096 |
instrument_statement(node, instrumented, 0); |
instrument_statement(node, instrumented, 0, false); |
1097 |
|
js_FinishParseContext(context, &parse_context); |
1098 |
|
|
1099 |
/* write line number info to the output */ |
/* write line number info to the output */ |
1100 |
Stream_write_string(output, "/* automatically generated by JSCoverage - do not edit */\n"); |
Stream_write_string(output, "/* automatically generated by JSCoverage - do not edit */\n"); |
1110 |
Stream_write_string(output, "}\n"); |
Stream_write_string(output, "}\n"); |
1111 |
free(lines); |
free(lines); |
1112 |
lines = NULL; |
lines = NULL; |
1113 |
|
free(exclusive_directives); |
1114 |
|
exclusive_directives = NULL; |
1115 |
|
|
1116 |
|
/* conditionals */ |
1117 |
|
if (has_conditionals) { |
1118 |
|
Stream_printf(output, "_$jscoverage['%s'].conditionals = [];\n", file_id); |
1119 |
|
} |
1120 |
|
|
1121 |
/* copy the instrumented source code to the output */ |
/* copy the instrumented source code to the output */ |
1122 |
Stream_write(output, instrumented->data, instrumented->length); |
Stream_write(output, instrumented->data, instrumented->length); |
1123 |
|
|
1124 |
|
/* conditionals */ |
1125 |
|
for (struct IfDirective * if_directive = if_directives; if_directive != NULL; if_directive = if_directive->next) { |
1126 |
|
Stream_write_string(output, "if (!("); |
1127 |
|
print_javascript(if_directive->condition_start, if_directive->condition_end - if_directive->condition_start, output); |
1128 |
|
Stream_write_string(output, ")) {\n"); |
1129 |
|
Stream_printf(output, " _$jscoverage['%s'].conditionals[%d] = %d;\n", file_id, if_directive->start_line, if_directive->end_line); |
1130 |
|
Stream_write_string(output, "}\n"); |
1131 |
|
} |
1132 |
|
|
1133 |
|
/* free */ |
1134 |
|
while (if_directives != NULL) { |
1135 |
|
struct IfDirective * if_directive = if_directives; |
1136 |
|
if_directives = if_directives->next; |
1137 |
|
free(if_directive); |
1138 |
|
} |
1139 |
|
|
1140 |
|
/* copy the original source to the output */ |
1141 |
|
Stream_printf(output, "_$jscoverage['%s'].source = ", file_id); |
1142 |
|
jscoverage_write_source(id, characters, num_characters, output); |
1143 |
|
Stream_printf(output, ";\n"); |
1144 |
|
|
1145 |
Stream_delete(instrumented); |
Stream_delete(instrumented); |
1146 |
|
|
1147 |
|
file_id = NULL; |
1148 |
|
} |
1149 |
|
|
1150 |
|
void jscoverage_write_source(const char * id, const jschar * characters, size_t num_characters, Stream * output) { |
1151 |
|
Stream_write_string(output, "["); |
1152 |
|
if (jscoverage_highlight) { |
1153 |
|
Stream * highlighted_stream = Stream_new(num_characters); |
1154 |
|
jscoverage_highlight_js(context, id, characters, num_characters, highlighted_stream); |
1155 |
|
size_t i = 0; |
1156 |
|
while (i < highlighted_stream->length) { |
1157 |
|
if (i > 0) { |
1158 |
|
Stream_write_char(output, ','); |
1159 |
|
} |
1160 |
|
|
1161 |
|
Stream_write_char(output, '"'); |
1162 |
|
bool done = false; |
1163 |
|
while (! done) { |
1164 |
|
char c = highlighted_stream->data[i]; |
1165 |
|
switch (c) { |
1166 |
|
case 0x8: |
1167 |
|
/* backspace */ |
1168 |
|
Stream_write_string(output, "\\b"); |
1169 |
|
break; |
1170 |
|
case 0x9: |
1171 |
|
/* horizontal tab */ |
1172 |
|
Stream_write_string(output, "\\t"); |
1173 |
|
break; |
1174 |
|
case 0xa: |
1175 |
|
/* line feed (new line) */ |
1176 |
|
done = true; |
1177 |
|
break; |
1178 |
|
/* IE doesn't support this */ |
1179 |
|
/* |
1180 |
|
case 0xb: |
1181 |
|
Stream_write_string(output, "\\v"); |
1182 |
|
break; |
1183 |
|
*/ |
1184 |
|
case 0xc: |
1185 |
|
/* form feed */ |
1186 |
|
Stream_write_string(output, "\\f"); |
1187 |
|
break; |
1188 |
|
case 0xd: |
1189 |
|
/* carriage return */ |
1190 |
|
done = true; |
1191 |
|
if (i + 1 < highlighted_stream->length && highlighted_stream->data[i + 1] == '\n') { |
1192 |
|
i++; |
1193 |
|
} |
1194 |
|
break; |
1195 |
|
case '"': |
1196 |
|
Stream_write_string(output, "\\\""); |
1197 |
|
break; |
1198 |
|
case '\\': |
1199 |
|
Stream_write_string(output, "\\\\"); |
1200 |
|
break; |
1201 |
|
default: |
1202 |
|
Stream_write_char(output, c); |
1203 |
|
break; |
1204 |
|
} |
1205 |
|
i++; |
1206 |
|
if (i >= highlighted_stream->length) { |
1207 |
|
done = true; |
1208 |
|
} |
1209 |
|
} |
1210 |
|
Stream_write_char(output, '"'); |
1211 |
|
} |
1212 |
|
Stream_delete(highlighted_stream); |
1213 |
|
} |
1214 |
|
else { |
1215 |
|
size_t i = 0; |
1216 |
|
while (i < num_characters) { |
1217 |
|
if (i > 0) { |
1218 |
|
Stream_write_char(output, ','); |
1219 |
|
} |
1220 |
|
|
1221 |
|
Stream_write_char(output, '"'); |
1222 |
|
bool done = false; |
1223 |
|
while (! done) { |
1224 |
|
jschar c = characters[i]; |
1225 |
|
switch (c) { |
1226 |
|
case 0x8: |
1227 |
|
/* backspace */ |
1228 |
|
Stream_write_string(output, "\\b"); |
1229 |
|
break; |
1230 |
|
case 0x9: |
1231 |
|
/* horizontal tab */ |
1232 |
|
Stream_write_string(output, "\\t"); |
1233 |
|
break; |
1234 |
|
case 0xa: |
1235 |
|
/* line feed (new line) */ |
1236 |
|
done = true; |
1237 |
|
break; |
1238 |
|
/* IE doesn't support this */ |
1239 |
|
/* |
1240 |
|
case 0xb: |
1241 |
|
Stream_write_string(output, "\\v"); |
1242 |
|
break; |
1243 |
|
*/ |
1244 |
|
case 0xc: |
1245 |
|
/* form feed */ |
1246 |
|
Stream_write_string(output, "\\f"); |
1247 |
|
break; |
1248 |
|
case 0xd: |
1249 |
|
/* carriage return */ |
1250 |
|
done = true; |
1251 |
|
if (i + 1 < num_characters && characters[i + 1] == '\n') { |
1252 |
|
i++; |
1253 |
|
} |
1254 |
|
break; |
1255 |
|
case '"': |
1256 |
|
Stream_write_string(output, "\\\""); |
1257 |
|
break; |
1258 |
|
case '\\': |
1259 |
|
Stream_write_string(output, "\\\\"); |
1260 |
|
break; |
1261 |
|
case '&': |
1262 |
|
Stream_write_string(output, "&"); |
1263 |
|
break; |
1264 |
|
case '<': |
1265 |
|
Stream_write_string(output, "<"); |
1266 |
|
break; |
1267 |
|
case '>': |
1268 |
|
Stream_write_string(output, ">"); |
1269 |
|
break; |
1270 |
|
case 0x2028: |
1271 |
|
case 0x2029: |
1272 |
|
done = true; |
1273 |
|
break; |
1274 |
|
default: |
1275 |
|
if (32 <= c && c <= 126) { |
1276 |
|
Stream_write_char(output, c); |
1277 |
|
} |
1278 |
|
else { |
1279 |
|
Stream_printf(output, "&#%d;", c); |
1280 |
|
} |
1281 |
|
break; |
1282 |
|
} |
1283 |
|
i++; |
1284 |
|
if (i >= num_characters) { |
1285 |
|
done = true; |
1286 |
|
} |
1287 |
|
} |
1288 |
|
Stream_write_char(output, '"'); |
1289 |
|
} |
1290 |
|
} |
1291 |
|
Stream_write_string(output, "]"); |
1292 |
|
} |
1293 |
|
|
1294 |
|
void jscoverage_copy_resources(const char * destination_directory) { |
1295 |
|
copy_resource("jscoverage.html", destination_directory); |
1296 |
|
copy_resource("jscoverage.css", destination_directory); |
1297 |
|
copy_resource("jscoverage.js", destination_directory); |
1298 |
|
copy_resource("jscoverage-ie.css", destination_directory); |
1299 |
|
copy_resource("jscoverage-throbber.gif", destination_directory); |
1300 |
|
copy_resource("jscoverage-highlight.css", destination_directory); |
1301 |
|
} |
1302 |
|
|
1303 |
|
/* |
1304 |
|
coverage reports |
1305 |
|
*/ |
1306 |
|
|
1307 |
|
struct FileCoverageList { |
1308 |
|
FileCoverage * file_coverage; |
1309 |
|
struct FileCoverageList * next; |
1310 |
|
}; |
1311 |
|
|
1312 |
|
struct Coverage { |
1313 |
|
JSHashTable * coverage_table; |
1314 |
|
struct FileCoverageList * coverage_list; |
1315 |
|
}; |
1316 |
|
|
1317 |
|
static int compare_strings(const void * p1, const void * p2) { |
1318 |
|
return strcmp(p1, p2) == 0; |
1319 |
|
} |
1320 |
|
|
1321 |
|
Coverage * Coverage_new(void) { |
1322 |
|
Coverage * result = xmalloc(sizeof(Coverage)); |
1323 |
|
result->coverage_table = JS_NewHashTable(1024, JS_HashString, compare_strings, NULL, NULL, NULL); |
1324 |
|
if (result->coverage_table == NULL) { |
1325 |
|
fatal("cannot create hash table"); |
1326 |
|
} |
1327 |
|
result->coverage_list = NULL; |
1328 |
|
return result; |
1329 |
|
} |
1330 |
|
|
1331 |
|
void Coverage_delete(Coverage * coverage) { |
1332 |
|
JS_HashTableDestroy(coverage->coverage_table); |
1333 |
|
struct FileCoverageList * p = coverage->coverage_list; |
1334 |
|
while (p != NULL) { |
1335 |
|
free(p->file_coverage->coverage_lines); |
1336 |
|
if (p->file_coverage->source_lines != NULL) { |
1337 |
|
for (uint32 i = 0; i < p->file_coverage->num_source_lines; i++) { |
1338 |
|
free(p->file_coverage->source_lines[i]); |
1339 |
|
} |
1340 |
|
free(p->file_coverage->source_lines); |
1341 |
|
} |
1342 |
|
free(p->file_coverage->id); |
1343 |
|
free(p->file_coverage); |
1344 |
|
struct FileCoverageList * q = p; |
1345 |
|
p = p->next; |
1346 |
|
free(q); |
1347 |
|
} |
1348 |
|
free(coverage); |
1349 |
|
} |
1350 |
|
|
1351 |
|
struct EnumeratorArg { |
1352 |
|
CoverageForeachFunction f; |
1353 |
|
void * p; |
1354 |
|
}; |
1355 |
|
|
1356 |
|
static intN enumerator(JSHashEntry * entry, intN i, void * arg) { |
1357 |
|
struct EnumeratorArg * enumerator_arg = arg; |
1358 |
|
enumerator_arg->f(entry->value, i, enumerator_arg->p); |
1359 |
|
return 0; |
1360 |
|
} |
1361 |
|
|
1362 |
|
void Coverage_foreach_file(Coverage * coverage, CoverageForeachFunction f, void * p) { |
1363 |
|
struct EnumeratorArg enumerator_arg; |
1364 |
|
enumerator_arg.f = f; |
1365 |
|
enumerator_arg.p = p; |
1366 |
|
JS_HashTableEnumerateEntries(coverage->coverage_table, enumerator, &enumerator_arg); |
1367 |
|
} |
1368 |
|
|
1369 |
|
int jscoverage_parse_json(Coverage * coverage, const uint8_t * json, size_t length) { |
1370 |
|
int result = 0; |
1371 |
|
|
1372 |
|
jschar * base = js_InflateString(context, (char *) json, &length); |
1373 |
|
if (base == NULL) { |
1374 |
|
fatal("out of memory"); |
1375 |
|
} |
1376 |
|
|
1377 |
|
jschar * parenthesized_json = xnew(jschar, addst(length, 2)); |
1378 |
|
parenthesized_json[0] = '('; |
1379 |
|
memcpy(parenthesized_json + 1, base, mulst(length, sizeof(jschar))); |
1380 |
|
parenthesized_json[length + 1] = ')'; |
1381 |
|
|
1382 |
JS_free(context, base); |
JS_free(context, base); |
1383 |
|
|
1384 |
file_id = NULL; |
JSParseContext parse_context; |
1385 |
|
if (! js_InitParseContext(context, &parse_context, NULL, NULL, parenthesized_json, length + 2, NULL, NULL, 1)) { |
1386 |
|
free(parenthesized_json); |
1387 |
|
return -1; |
1388 |
|
} |
1389 |
|
JSParseNode * root = js_ParseScript(context, global, &parse_context); |
1390 |
|
free(parenthesized_json); |
1391 |
|
if (root == NULL) { |
1392 |
|
result = -1; |
1393 |
|
goto done; |
1394 |
|
} |
1395 |
|
|
1396 |
|
/* root node must be TOK_LC */ |
1397 |
|
if (root->pn_type != TOK_LC) { |
1398 |
|
result = -1; |
1399 |
|
goto done; |
1400 |
|
} |
1401 |
|
JSParseNode * semi = root->pn_u.list.head; |
1402 |
|
|
1403 |
|
/* the list must be TOK_SEMI and it must contain only one element */ |
1404 |
|
if (semi->pn_type != TOK_SEMI || semi->pn_next != NULL) { |
1405 |
|
result = -1; |
1406 |
|
goto done; |
1407 |
|
} |
1408 |
|
JSParseNode * parenthesized = semi->pn_kid; |
1409 |
|
|
1410 |
|
/* this must be a parenthesized expression */ |
1411 |
|
if (parenthesized->pn_type != TOK_RP) { |
1412 |
|
result = -1; |
1413 |
|
goto done; |
1414 |
|
} |
1415 |
|
JSParseNode * object = parenthesized->pn_kid; |
1416 |
|
|
1417 |
|
/* this must be an object literal */ |
1418 |
|
if (object->pn_type != TOK_RC) { |
1419 |
|
result = -1; |
1420 |
|
goto done; |
1421 |
|
} |
1422 |
|
|
1423 |
|
for (JSParseNode * p = object->pn_head; p != NULL; p = p->pn_next) { |
1424 |
|
/* every element of this list must be TOK_COLON */ |
1425 |
|
if (p->pn_type != TOK_COLON) { |
1426 |
|
result = -1; |
1427 |
|
goto done; |
1428 |
|
} |
1429 |
|
|
1430 |
|
/* the key must be a string representing the file */ |
1431 |
|
JSParseNode * key = p->pn_left; |
1432 |
|
if (key->pn_type != TOK_STRING || ! ATOM_IS_STRING(key->pn_atom)) { |
1433 |
|
result = -1; |
1434 |
|
goto done; |
1435 |
|
} |
1436 |
|
char * id_bytes = JS_GetStringBytes(ATOM_TO_STRING(key->pn_atom)); |
1437 |
|
|
1438 |
|
/* the value must be an object literal OR an array */ |
1439 |
|
JSParseNode * value = p->pn_right; |
1440 |
|
if (! (value->pn_type == TOK_RC || value->pn_type == TOK_RB)) { |
1441 |
|
result = -1; |
1442 |
|
goto done; |
1443 |
|
} |
1444 |
|
|
1445 |
|
JSParseNode * array = NULL; |
1446 |
|
JSParseNode * source = NULL; |
1447 |
|
if (value->pn_type == TOK_RB) { |
1448 |
|
/* an array */ |
1449 |
|
array = value; |
1450 |
|
} |
1451 |
|
else if (value->pn_type == TOK_RC) { |
1452 |
|
/* an object literal */ |
1453 |
|
if (value->pn_count != 2) { |
1454 |
|
result = -1; |
1455 |
|
goto done; |
1456 |
|
} |
1457 |
|
for (JSParseNode * element = value->pn_head; element != NULL; element = element->pn_next) { |
1458 |
|
if (element->pn_type != TOK_COLON) { |
1459 |
|
result = -1; |
1460 |
|
goto done; |
1461 |
|
} |
1462 |
|
JSParseNode * left = element->pn_left; |
1463 |
|
if (left->pn_type != TOK_STRING || ! ATOM_IS_STRING(left->pn_atom)) { |
1464 |
|
result = -1; |
1465 |
|
goto done; |
1466 |
|
} |
1467 |
|
const char * s = JS_GetStringBytes(ATOM_TO_STRING(left->pn_atom)); |
1468 |
|
if (strcmp(s, "coverage") == 0) { |
1469 |
|
array = element->pn_right; |
1470 |
|
if (array->pn_type != TOK_RB) { |
1471 |
|
result = -1; |
1472 |
|
goto done; |
1473 |
|
} |
1474 |
|
} |
1475 |
|
else if (strcmp(s, "source") == 0) { |
1476 |
|
source = element->pn_right; |
1477 |
|
if (source->pn_type != TOK_RB) { |
1478 |
|
result = -1; |
1479 |
|
goto done; |
1480 |
|
} |
1481 |
|
} |
1482 |
|
else { |
1483 |
|
result = -1; |
1484 |
|
goto done; |
1485 |
|
} |
1486 |
|
} |
1487 |
|
} |
1488 |
|
else { |
1489 |
|
result = -1; |
1490 |
|
goto done; |
1491 |
|
} |
1492 |
|
|
1493 |
|
if (array == NULL) { |
1494 |
|
result = -1; |
1495 |
|
goto done; |
1496 |
|
} |
1497 |
|
|
1498 |
|
/* look up the file in the coverage table */ |
1499 |
|
FileCoverage * file_coverage = JS_HashTableLookup(coverage->coverage_table, id_bytes); |
1500 |
|
if (file_coverage == NULL) { |
1501 |
|
/* not there: create a new one */ |
1502 |
|
char * id = xstrdup(id_bytes); |
1503 |
|
file_coverage = xmalloc(sizeof(FileCoverage)); |
1504 |
|
file_coverage->id = id; |
1505 |
|
file_coverage->num_coverage_lines = array->pn_count; |
1506 |
|
file_coverage->coverage_lines = xnew(int, array->pn_count); |
1507 |
|
file_coverage->source_lines = NULL; |
1508 |
|
|
1509 |
|
/* set coverage for all lines */ |
1510 |
|
uint32 i = 0; |
1511 |
|
for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) { |
1512 |
|
if (element->pn_type == TOK_NUMBER) { |
1513 |
|
file_coverage->coverage_lines[i] = (int) element->pn_dval; |
1514 |
|
} |
1515 |
|
else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) { |
1516 |
|
file_coverage->coverage_lines[i] = -1; |
1517 |
|
} |
1518 |
|
else { |
1519 |
|
result = -1; |
1520 |
|
goto done; |
1521 |
|
} |
1522 |
|
} |
1523 |
|
assert(i == array->pn_count); |
1524 |
|
|
1525 |
|
/* add to the hash table */ |
1526 |
|
JS_HashTableAdd(coverage->coverage_table, id, file_coverage); |
1527 |
|
struct FileCoverageList * coverage_list = xmalloc(sizeof(struct FileCoverageList)); |
1528 |
|
coverage_list->file_coverage = file_coverage; |
1529 |
|
coverage_list->next = coverage->coverage_list; |
1530 |
|
coverage->coverage_list = coverage_list; |
1531 |
|
} |
1532 |
|
else { |
1533 |
|
/* sanity check */ |
1534 |
|
assert(strcmp(file_coverage->id, id_bytes) == 0); |
1535 |
|
if (file_coverage->num_coverage_lines != array->pn_count) { |
1536 |
|
result = -2; |
1537 |
|
goto done; |
1538 |
|
} |
1539 |
|
|
1540 |
|
/* merge the coverage */ |
1541 |
|
uint32 i = 0; |
1542 |
|
for (JSParseNode * element = array->pn_head; element != NULL; element = element->pn_next, i++) { |
1543 |
|
if (element->pn_type == TOK_NUMBER) { |
1544 |
|
if (file_coverage->coverage_lines[i] == -1) { |
1545 |
|
result = -2; |
1546 |
|
goto done; |
1547 |
|
} |
1548 |
|
file_coverage->coverage_lines[i] += (int) element->pn_dval; |
1549 |
|
} |
1550 |
|
else if (element->pn_type == TOK_PRIMARY && element->pn_op == JSOP_NULL) { |
1551 |
|
if (file_coverage->coverage_lines[i] != -1) { |
1552 |
|
result = -2; |
1553 |
|
goto done; |
1554 |
|
} |
1555 |
|
} |
1556 |
|
else { |
1557 |
|
result = -1; |
1558 |
|
goto done; |
1559 |
|
} |
1560 |
|
} |
1561 |
|
assert(i == array->pn_count); |
1562 |
|
} |
1563 |
|
|
1564 |
|
/* if this JSON file has source, use it */ |
1565 |
|
if (file_coverage->source_lines == NULL && source != NULL) { |
1566 |
|
file_coverage->num_source_lines = source->pn_count; |
1567 |
|
file_coverage->source_lines = xnew(char *, source->pn_count); |
1568 |
|
uint32 i = 0; |
1569 |
|
for (JSParseNode * element = source->pn_head; element != NULL; element = element->pn_next, i++) { |
1570 |
|
if (element->pn_type != TOK_STRING) { |
1571 |
|
result = -1; |
1572 |
|
goto done; |
1573 |
|
} |
1574 |
|
file_coverage->source_lines[i] = xstrdup(JS_GetStringBytes(ATOM_TO_STRING(element->pn_atom))); |
1575 |
|
} |
1576 |
|
assert(i == source->pn_count); |
1577 |
|
} |
1578 |
|
} |
1579 |
|
|
1580 |
|
done: |
1581 |
|
js_FinishParseContext(context, &parse_context); |
1582 |
|
return result; |
1583 |
} |
} |