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Merge from cvs-trunk-mirror to mozilla-central.

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This commit is contained in:
2008-04-02 16:35:13 -05:00
parent 244090f9af 3b3d14880a
commit f732aac40d
1212 changed files with 115237 additions and 19105 deletions
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284
js/src/jsopcode.cpp
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@@ -617,7 +617,7 @@ struct JSPrinter {
JSScript *script; /* script being printed */
jsbytecode *dvgfence; /* DecompileExpression fencepost */
jsbytecode **pcstack; /* DecompileExpression modelled stack */
JSScriptedFunction *fun; /* interpreted function */
JSFunction *fun; /* interpreted function */
jsuword *localNames; /* argument and variable names */
};
@@ -630,7 +630,8 @@ struct JSPrinter {
#define JS_IN_GROUP_CONTEXT 0x10000
JSPrinter *
JS_NEW_PRINTER(JSContext *cx, const char *name, uintN indent, JSBool pretty)
JS_NEW_PRINTER(JSContext *cx, const char *name, JSFunction *fun,
uintN indent, JSBool pretty)
{
JSPrinter *jp;
@@ -645,8 +646,15 @@ JS_NEW_PRINTER(JSContext *cx, const char *name, uintN indent, JSBool pretty)
jp->script = NULL;
jp->dvgfence = NULL;
jp->pcstack = NULL;
jp->fun = fun;
jp->localNames = NULL;
jp->fun = NULL;
if (fun && FUN_INTERPRETED(fun) && JS_GET_LOCAL_NAME_COUNT(fun)) {
jp->localNames = js_GetLocalNameArray(cx, fun, &jp->pool);
if (!jp->localNames) {
js_DestroyPrinter(jp);
return NULL;
}
}
return jp;
}
@@ -657,21 +665,6 @@ js_DestroyPrinter(JSPrinter *jp)
JS_free(jp->sprinter.context, jp);
}
static JSBool
InitFunctionPrinter(JSPrinter *jp, JSScriptedFunction *fun)
{
JS_ASSERT(!jp->fun);
JS_ASSERT(!jp->localNames);
if (JS_GET_LOCAL_NAME_COUNT(fun) != 0) {
jp->localNames = js_GetLocalNameArray(jp->sprinter.context, fun,
&jp->pool);
if (!jp->localNames)
return JS_FALSE;
}
jp->fun = fun;
return JS_TRUE;
}
JSString *
js_GetPrinterOutput(JSPrinter *jp)
{
@@ -796,7 +789,7 @@ ReconstructPCStack(JSContext *cx, JSScript *script, jsbytecode *pc,
* decompiled string on success.
*/
static char *
DecompileExpression(JSContext *cx, JSScript *script, JSScriptedFunction *fun,
DecompileExpression(JSContext *cx, JSScript *script, JSFunction *fun,
jsbytecode *pc);
/*
@@ -1136,15 +1129,17 @@ DecompileSwitch(SprintStack *ss, TableEntry *table, uintN tableLength,
static JSAtom *
GetSlotAtom(JSPrinter *jp, JSBool argument, uintN slot)
{
JSFunction *fun;
JSAtom *name;
fun = jp->fun;
LOCAL_ASSERT_RV(jp->fun, NULL);
LOCAL_ASSERT_RV(jp->localNames, NULL);
if (argument) {
LOCAL_ASSERT_RV(slot < jp->fun->nargs, NULL);
LOCAL_ASSERT_RV(slot < fun->nargs, NULL);
} else {
LOCAL_ASSERT_RV(slot < jp->fun->nvars, NULL);
slot += jp->fun->nargs;
LOCAL_ASSERT_RV(slot < fun->u.i.nvars, NULL);
slot += fun->nargs;
}
name = JS_LOCAL_NAME_TO_ATOM(jp->localNames[slot]);
#if !JS_HAS_DESTRUCTURING
@@ -1636,7 +1631,7 @@ Decompile(SprintStack *ss, jsbytecode *pc, intN nb, JSOp nextop)
char **argv;
JSAtom *atom;
JSObject *obj;
JSScriptedFunction *fun;
JSFunction *fun;
JSString *str;
JSBool ok;
#if JS_HAS_XML_SUPPORT
@@ -1705,7 +1700,7 @@ Decompile(SprintStack *ss, jsbytecode *pc, intN nb, JSOp nextop)
GET_OBJECT_FROM_BYTECODE(jp->script, pc, PCOFF, obj)
#define LOAD_FUNCTION(PCOFF) \
GET_FUNCTION_FROM_BYTECODE(jp->script, pc, PCOFF, obj)
GET_FUNCTION_FROM_BYTECODE(jp->script, pc, PCOFF, fun)
#define LOAD_REGEXP(PCOFF) \
GET_REGEXP_FROM_BYTECODE(jp->script, pc, PCOFF, obj)
@@ -2021,16 +2016,16 @@ Decompile(SprintStack *ss, jsbytecode *pc, intN nb, JSOp nextop)
break;
case SRC_FUNCDEF:
JS_GET_SCRIPT_OBJECT(jp->script, js_GetSrcNoteOffset(sn, 0),
obj);
JS_GET_SCRIPT_FUNCTION(jp->script,
js_GetSrcNoteOffset(sn, 0),
fun);
do_function:
js_puts(jp, "\n");
jp2 = JS_NEW_PRINTER(cx, "nested_function",
jp2 = JS_NEW_PRINTER(cx, "nested_function", fun,
jp->indent, jp->pretty);
if (!jp2)
return NULL;
fun = FUN_TO_SCRIPTED(OBJ_TO_FUNCTION(obj));
ok = js_DecompileFunction(jp2, fun);
ok = js_DecompileFunction(jp2);
if (ok && jp2->sprinter.base)
js_puts(jp, jp2->sprinter.base);
js_DestroyPrinter(jp2);
@@ -3772,8 +3767,7 @@ Decompile(SprintStack *ss, jsbytecode *pc, intN nb, JSOp nextop)
SprintStack ss2;
LOAD_FUNCTION(0);
fun = FUN_TO_SCRIPTED(OBJ_TO_FUNCTION(obj));
inner = fun->script;
inner = fun->u.i.script;
/*
* All allocation when decompiling is LIFO, using malloc
@@ -3888,11 +3882,9 @@ Decompile(SprintStack *ss, jsbytecode *pc, intN nb, JSOp nextop)
* parenthesization without confusing getter/setter code
* that checks for JSOP_ANONFUNOBJ and JSOP_NAMEDFUNOBJ.
*/
fun = FUN_TO_SCRIPTED(OBJ_TO_FUNCTION(obj));
if (!(fun->flags & JSFUN_EXPR_CLOSURE))
indent |= JS_IN_GROUP_CONTEXT;
str = JS_DecompileFunction(cx, OBJ_TO_FUNCTION(obj),
indent);
str = JS_DecompileFunction(cx, fun, indent);
if (!str)
return NULL;
}
@@ -4620,83 +4612,55 @@ out:
return ok;
}
static const char native_code_str[] = "\t[native code]\n";
JSBool
js_DecompileNativeFunction(JSPrinter *jp, JSNativeFunction *fun)
{
if (jp->pretty)
js_printf(jp, "\t");
if (JSFUN_GETTER_TEST(fun->flags))
js_printf(jp, "%s ", js_getter_str);
else if (JSFUN_SETTER_TEST(fun->flags))
js_printf(jp, "%s ", js_setter_str);
js_printf(jp, "%s ", js_function_str);
if (fun->atom && !QuoteString(&jp->sprinter, ATOM_TO_STRING(fun->atom), 0))
return JS_FALSE;
js_printf(jp, "() {\n");
jp->indent += 4;
js_printf(jp, native_code_str);
jp->indent -= 4;
js_printf(jp, "\t}");
return JS_TRUE;
}
JSBool
js_DecompileNativeFunctionBody(JSPrinter *jp, JSNativeFunction *fun)
{
js_printf(jp, native_code_str);
return JS_TRUE;
}
JSBool
js_DecompileScript(JSPrinter *jp, JSScript *script)
{
return DecompileCode(jp, script, script->code, (uintN)script->length, 0);
}
static const char native_code_str[] = "\t[native code]\n";
JSBool
js_DecompileFunctionBody(JSPrinter *jp, JSScriptedFunction *fun)
js_DecompileFunctionBody(JSPrinter *jp)
{
JSScript *script;
JS_ASSERT(jp->fun);
JS_ASSERT(!jp->script);
JS_ASSERT(!jp->fun);
if (!InitFunctionPrinter(jp, fun))
return JS_FALSE;
script = fun->script;
if (!FUN_INTERPRETED(jp->fun)) {
js_printf(jp, native_code_str);
return JS_TRUE;
}
script = jp->fun->u.i.script;
return DecompileCode(jp, script, script->code, (uintN)script->length, 0);
}
JSBool
js_DecompileFunction(JSPrinter *jp, JSScriptedFunction *fun)
js_DecompileFunction(JSPrinter *jp)
{
JSFunction *fun;
uintN i;
JSAtom *param;
jsbytecode *pc, *endpc;
ptrdiff_t len;
JSBool ok;
#ifdef JS_HAS_DESTRUCTURING
SprintStack ss;
void *mark;
#endif
fun = jp->fun;
JS_ASSERT(fun);
JS_ASSERT(!jp->script);
if (!InitFunctionPrinter(jp, fun))
return JS_FALSE;
/*
* If pretty, conform to ECMA-262 Edition 3, 15.3.4.2, by decompiling a
* FunctionDeclaration. Otherwise, check the JSFUN_LAMBDA flag and force
* an expression by parenthesizing.
*/
if (jp->pretty)
if (jp->pretty) {
js_printf(jp, "\t");
else if (!jp->grouped && (fun->flags & JSFUN_LAMBDA))
js_puts(jp, "(");
} else {
if (!jp->grouped && (fun->flags & JSFUN_LAMBDA))
js_puts(jp, "(");
}
if (JSFUN_GETTER_TEST(fun->flags))
js_printf(jp, "%s ", js_getter_str);
else if (JSFUN_SETTER_TEST(fun->flags))
@@ -4707,89 +4671,102 @@ js_DecompileFunction(JSPrinter *jp, JSScriptedFunction *fun)
return JS_FALSE;
js_puts(jp, "(");
/* Print the parameters. */
pc = fun->script->main;
endpc = pc + fun->script->length;
ok = JS_TRUE;
if (!FUN_INTERPRETED(fun)) {
js_printf(jp, ") {\n");
jp->indent += 4;
js_printf(jp, native_code_str);
jp->indent -= 4;
js_printf(jp, "\t}");
} else {
#ifdef JS_HAS_DESTRUCTURING
/* Skip JSOP_GENERATOR in case of destructuring parameters. */
if (*pc == JSOP_GENERATOR)
pc += JSOP_GENERATOR_LENGTH;
ss.printer = NULL;
jp->script = fun->script;
mark = JS_ARENA_MARK(&jp->sprinter.context->tempPool);
SprintStack ss;
void *mark;
#endif
for (i = 0; i < fun->nargs; i++) {
if (i > 0)
js_puts(jp, ", ");
/* Print the parameters. */
pc = fun->u.i.script->main;
endpc = pc + fun->u.i.script->length;
ok = JS_TRUE;
param = GetSlotAtom(jp, JS_TRUE, i);
#ifdef JS_HAS_DESTRUCTURING
/* Skip JSOP_GENERATOR in case of destructuring parameters. */
if (*pc == JSOP_GENERATOR)
pc += JSOP_GENERATOR_LENGTH;
ss.printer = NULL;
jp->script = fun->u.i.script;
mark = JS_ARENA_MARK(&jp->sprinter.context->tempPool);
#endif
for (i = 0; i < fun->nargs; i++) {
if (i > 0)
js_puts(jp, ", ");
param = GetSlotAtom(jp, JS_TRUE, i);
#if JS_HAS_DESTRUCTURING
#define LOCAL_ASSERT(expr) LOCAL_ASSERT_RV(expr, JS_FALSE)
if (!param) {
ptrdiff_t todo;
const char *lval;
if (!param) {
ptrdiff_t todo;
const char *lval;
LOCAL_ASSERT(*pc == JSOP_GETARG);
pc += JSOP_GETARG_LENGTH;
LOCAL_ASSERT(*pc == JSOP_DUP);
if (!ss.printer) {
ok = InitSprintStack(jp->sprinter.context, &ss, jp,
fun->script->depth);
if (!ok)
LOCAL_ASSERT(*pc == JSOP_GETARG);
pc += JSOP_GETARG_LENGTH;
LOCAL_ASSERT(*pc == JSOP_DUP);
if (!ss.printer) {
ok = InitSprintStack(jp->sprinter.context, &ss, jp,
fun->u.i.script->depth);
if (!ok)
break;
}
pc = DecompileDestructuring(&ss, pc, endpc);
if (!pc) {
ok = JS_FALSE;
break;
}
LOCAL_ASSERT(*pc == JSOP_POP);
pc += JSOP_POP_LENGTH;
lval = PopStr(&ss, JSOP_NOP);
todo = SprintCString(&jp->sprinter, lval);
if (todo < 0) {
ok = JS_FALSE;
break;
}
continue;
}
pc = DecompileDestructuring(&ss, pc, endpc);
if (!pc) {
ok = JS_FALSE;
break;
}
LOCAL_ASSERT(*pc == JSOP_POP);
pc += JSOP_POP_LENGTH;
lval = PopStr(&ss, JSOP_NOP);
todo = SprintCString(&jp->sprinter, lval);
if (todo < 0) {
ok = JS_FALSE;
break;
}
continue;
}
#undef LOCAL_ASSERT
#endif
if (!QuoteString(&jp->sprinter, ATOM_TO_STRING(param), 0)) {
ok = JS_FALSE;
break;
if (!QuoteString(&jp->sprinter, ATOM_TO_STRING(param), 0)) {
ok = JS_FALSE;
break;
}
}
}
#ifdef JS_HAS_DESTRUCTURING
jp->script = NULL;
JS_ARENA_RELEASE(&jp->sprinter.context->tempPool, mark);
jp->script = NULL;
JS_ARENA_RELEASE(&jp->sprinter.context->tempPool, mark);
#endif
if (!ok)
return JS_FALSE;
if (fun->flags & JSFUN_EXPR_CLOSURE) {
js_printf(jp, ") ");
} else {
js_printf(jp, ") {\n");
jp->indent += 4;
}
if (!ok)
return JS_FALSE;
if (fun->flags & JSFUN_EXPR_CLOSURE) {
js_printf(jp, ") ");
} else {
js_printf(jp, ") {\n");
jp->indent += 4;
}
len = fun->script->code + fun->script->length - pc;
ok = DecompileCode(jp, fun->script, pc, (uintN)len, 0);
if (!ok)
return JS_FALSE;
len = fun->u.i.script->code + fun->u.i.script->length - pc;
ok = DecompileCode(jp, fun->u.i.script, pc, (uintN)len, 0);
if (!ok)
return JS_FALSE;
if (!(fun->flags & JSFUN_EXPR_CLOSURE)) {
jp->indent -= 4;
js_printf(jp, "\t}");
if (!(fun->flags & JSFUN_EXPR_CLOSURE)) {
jp->indent -= 4;
js_printf(jp, "\t}");
}
}
if (!jp->pretty && !jp->grouped && (fun->flags & JSFUN_LAMBDA))
@@ -4881,9 +4858,7 @@ js_DecompileValueGenerator(JSContext *cx, intN spindex, jsval v,
goto do_fallback;
}
name = DecompileExpression(cx, script,
fp->fun ? FUN_TO_SCRIPTED(fp->fun) : NULL,
pc);
name = DecompileExpression(cx, script, fp->fun, pc);
if (name != FAILED_EXPRESSION_DECOMPILER)
return name;
@@ -4898,7 +4873,7 @@ js_DecompileValueGenerator(JSContext *cx, intN spindex, jsval v,
}
static char *
DecompileExpression(JSContext *cx, JSScript *script, JSScriptedFunction *fun,
DecompileExpression(JSContext *cx, JSScript *script, JSFunction *fun,
jsbytecode *pc)
{
JSOp op;
@@ -4979,16 +4954,13 @@ DecompileExpression(JSContext *cx, JSScript *script, JSScriptedFunction *fun,
}
name = NULL;
jp = JS_NEW_PRINTER(cx, "js_DecompileValueGenerator", 0, JS_FALSE);
jp = JS_NEW_PRINTER(cx, "js_DecompileValueGenerator", fun, 0, JS_FALSE);
if (jp) {
if (!fun || InitFunctionPrinter(jp, fun)) {
jp->dvgfence = end;
jp->pcstack = pcstack;
if (DecompileCode(jp, script, begin, (uintN) len,
(uintN) pcdepth)) {
name = (jp->sprinter.base) ? jp->sprinter.base : (char *) "";
name = JS_strdup(cx, name);
}
jp->dvgfence = end;
jp->pcstack = pcstack;
if (DecompileCode(jp, script, begin, (uintN) len, (uintN) pcdepth)) {
name = (jp->sprinter.base) ? jp->sprinter.base : (char *) "";
name = JS_strdup(cx, name);
}
js_DestroyPrinter(jp);
}