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General GC-related fixes.

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This commit is contained in:
rogerl%netscape.com 2003-03-15 20:05:32 +00:00
parent 1bf6cb18fb
commit ac2a48efe5
13 changed files with 56 additions and 52 deletions
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6
js2/src/epimetheus.cpp
View File

@ -340,7 +340,7 @@ js2val load(JS2Metadata *meta, const js2val /* thisValue */, js2val argv[], uint
if (argc) {
// Save off the current top frame and root it.
Environment *curEnv = meta->env;
JS2Object::RootIterator ri = JS2Object::addRoot(&curEnv);
RootKeeper rk(&curEnv);
// Set the environment to global object and system frame so that the
// load happens into the top frame.
meta->env = new Environment(curEnv->getSystemFrame(), curEnv->getPackageOrGlobalFrame());
@ -351,11 +351,9 @@ js2val load(JS2Metadata *meta, const js2val /* thisValue */, js2val argv[], uint
}
catch (Exception x) {
meta->env = curEnv;
JS2Object::removeRoot(ri);
throw x;
}
meta->env = curEnv;
JS2Object::removeRoot(ri);
return result;
}
else
@ -376,7 +374,7 @@ int main(int argc, char **argv)
stdOut << "Welcome to Epimetheus.\n";
#endif
JS2Object::addRoot(&metadata);
RootKeeper rk(&metadata);
metadata = new MetaData::JS2Metadata(world);

3
js2/src/js2array.cpp
View File

@ -110,7 +110,7 @@ js2val Array_Constructor(JS2Metadata *meta, const js2val /*thisValue*/, js2val *
{
js2val thatValue = OBJECT_TO_JS2VAL(new ArrayInstance(meta, meta->arrayClass->prototype, meta->arrayClass));
ArrayInstance *arrInst = checked_cast<ArrayInstance *>(JS2VAL_TO_OBJECT(thatValue));
JS2Object::RootIterator ri = JS2Object::addRoot(&arrInst);
RootKeeper rk(&arrInst);
if (argc > 0) {
if (argc == 1) {
if (JS2VAL_IS_NUMBER(argv[0])) {
@ -134,7 +134,6 @@ js2val Array_Constructor(JS2Metadata *meta, const js2val /*thisValue*/, js2val *
setLength(meta, arrInst, i);
}
}
JS2Object::removeRoot(ri);
return thatValue;
}

3
js2/src/js2boolean.cpp
View File

@ -59,13 +59,12 @@ namespace MetaData {
{
js2val thatValue = OBJECT_TO_JS2VAL(new BooleanInstance(meta, meta->booleanClass->prototype, meta->booleanClass));
BooleanInstance *boolInst = checked_cast<BooleanInstance *>(JS2VAL_TO_OBJECT(thatValue));
JS2Object::RootIterator ri = JS2Object::addRoot(&boolInst);
RootKeeper rk(&boolInst);
if (argc > 0)
boolInst->mValue = meta->toBoolean(argv[0]);
else
boolInst->mValue = false;
JS2Object::removeRoot(ri);
return thatValue;
}

4
js2/src/js2date.cpp
View File

@ -871,7 +871,7 @@ js2val Date_Constructor(JS2Metadata *meta, const js2val /* thisValue */, js2val
{
js2val thatValue = OBJECT_TO_JS2VAL(new DateInstance(meta, meta->dateClass->prototype, meta->dateClass));
DateInstance *thisInst = checked_cast<DateInstance *>(JS2VAL_TO_OBJECT(thatValue));
JS2Object::RootIterator ri = JS2Object::addRoot(&thisInst);
RootKeeper rk(&thisInst);
/* Date called as constructor */
if (argc == 0) {
@ -911,7 +911,6 @@ js2val Date_Constructor(JS2Metadata *meta, const js2val /* thisValue */, js2val
and return */
if (!JSDOUBLE_IS_FINITE(double_arg)) {
thisInst->ms = nan;
JS2Object::removeRoot(ri);
return thatValue;
}
array[loop] = JS2Engine::float64toInt32(double_arg);
@ -934,7 +933,6 @@ js2val Date_Constructor(JS2Metadata *meta, const js2val /* thisValue */, js2val
thisInst->ms = TIMECLIP(msec_time);
}
}
JS2Object::removeRoot(ri);
return thatValue;
}

7
js2/src/js2engine.cpp
View File

@ -88,6 +88,8 @@ namespace MetaData {
retval = JS2VAL_VOID;
baseVal = JS2VAL_VOID;
indexVal = JS2VAL_VOID;
astr = NULL;
bstr = NULL;
pFrame = NULL;
while (true) {
try {
@ -393,6 +395,8 @@ namespace MetaData {
baseVal(JS2VAL_VOID),
indexVal(JS2VAL_VOID),
pFrame(NULL),
astr(NULL),
bstr(NULL),
INIT_STRINGATOM(true),
INIT_STRINGATOM(false),
INIT_STRINGATOM(null),
@ -909,6 +913,9 @@ namespace MetaData {
GCMARKVALUE(indexVal);
GCMARKOBJECT(pFrame);
if (astr) JS2Object::mark(astr);
if (bstr) JS2Object::mark(bstr);
JS2Object::mark(true_StringAtom);
JS2Object::mark(false_StringAtom);
JS2Object::mark(null_StringAtom);

3
js2/src/js2engine.h
View File

@ -239,7 +239,8 @@ private:
ParameterFrame *pFrame;
const String *astr;
const String *bstr;
public:

4
js2/src/js2eval.cpp
View File

@ -324,7 +324,7 @@ namespace MetaData {
CompilationData *oldData = startCompilationUnit(bCon, bCon->mSource, bCon->mSourceLocation);
ParameterFrame *runtimeFrame = new ParameterFrame(fWrap->compileFrame);
JS2Object::RootIterator ri = JS2Object::addRoot(&runtimeFrame);
RootKeeper rk(&runtimeFrame);
runtimeFrame->instantiate(env);
runtimeFrame->thisObject = thisValue;
runtimeFrame->assignArguments(this, fnObj, argv, argc);
@ -339,13 +339,11 @@ namespace MetaData {
engine->pc = savePC;
restoreCompilationUnit(oldData);
env->setTopFrame(oldTopFrame);
JS2Object::removeRoot(ri);
throw x;
}
engine->pc = savePC;
restoreCompilationUnit(oldData);
env->setTopFrame(oldTopFrame);
JS2Object::removeRoot(ri);
}
}
return result;

14
js2/src/js2metadata.cpp
View File

@ -103,7 +103,7 @@ namespace MetaData {
result = sInst;
}
JS2Object::RootIterator ri = JS2Object::addRoot(&result);
RootKeeper rk(&result);
Frame *curTopFrame = env->getTopFrame();
CompilationData *oldData = startCompilationUnit(fnDef->fWrap->bCon, bCon->mSource, bCon->mSourceLocation);
try {
@ -137,11 +137,9 @@ namespace MetaData {
catch (Exception x) {
restoreCompilationUnit(oldData);
env->setTopFrame(curTopFrame);
JS2Object::removeRoot(ri);
throw x;
}
restoreCompilationUnit(oldData);
JS2Object::removeRoot(ri);
return result;
}
@ -151,7 +149,7 @@ namespace MetaData {
void JS2Metadata::ValidateStmt(Context *cxt, Environment *env, Plurality pl, StmtNode *p)
{
CompoundAttribute *a = NULL;
JS2Object::RootIterator ri = JS2Object::addRoot(&a);
RootKeeper rk(&a);
Frame *curTopFrame = env->getTopFrame();
try {
@ -650,10 +648,8 @@ namespace MetaData {
}
catch (Exception x) {
env->setTopFrame(curTopFrame);
JS2Object::removeRoot(ri);
throw x;
}
JS2Object::removeRoot(ri);
}
@ -4609,13 +4605,15 @@ deleteClassProperty:
ParameterFrame *plural = checked_cast<ParameterFrame *>(pluralFrame);
ASSERT((plural->positionalCount == 0) || (plural->positional != NULL));
PrototypeInstance *argsObj = new PrototypeInstance(meta, meta->objectClass->prototype, meta->objectClass);
PrototypeInstance *argsObj = NULL;
RootKeeper rk(&argsObj);
argsObj = new PrototypeInstance(meta, meta->objectClass->prototype, meta->objectClass);
// Add the 'arguments' property
LocalBinding *sb = new LocalBinding(ReadAccess, new Variable(meta->arrayClass, OBJECT_TO_JS2VAL(argsObj), true));
String *name = &meta->world.identifiers["arguments"];
ASSERT(localBindings[*name] == NULL);
LocalBindingEntry *lbe = new LocalBindingEntry(*name);
LocalBinding *sb = new LocalBinding(ReadAccess, new Variable(meta->arrayClass, OBJECT_TO_JS2VAL(argsObj), true));
lbe->bindingList.push_back(LocalBindingEntry::NamespaceBinding(meta->publicNamespace, sb));
uint32 i;

27
js2/src/js2op_access.cpp
View File

@ -142,12 +142,13 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
b = pop();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
if (!meta->readProperty(&b, &mn, &lookup, RunPhase, &a))
meta->reportError(Exception::propertyAccessError, "No property named {0}", errorPos(), mn.name);
push(a);
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;
@ -156,14 +157,15 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
b = pop();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
bool result;
if (!meta->deleteProperty(b, &mn, &lookup, RunPhase, &result))
push(JS2VAL_FALSE);
else
push(BOOLEAN_TO_JS2VAL(result));
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;
@ -175,11 +177,12 @@
a = pop();
indexVal = pop();
b = pop();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
meta->writeProperty(b, &mn, &lookup, true, a, RunPhase);
push(a);
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;
@ -189,12 +192,13 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
b = top();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
if (!meta->readProperty(&b, &mn, &lookup, RunPhase, &a))
meta->reportError(Exception::propertyAccessError, "No property named {0}", errorPos(), mn.name);
push(a);
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;
@ -204,13 +208,14 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
b = top();
const String *indexStr = meta->toString(indexVal);
push(STRING_TO_JS2VAL(indexStr));
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
push(STRING_TO_JS2VAL(astr));
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
if (!meta->readProperty(&b, &mn, &lookup, RunPhase, &a))
meta->reportError(Exception::propertyAccessError, "No property named {0}", errorPos(), mn.name);
push(a);
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;

24
js2/src/js2op_arithmetic.cpp
View File

@ -332,8 +332,8 @@
a = meta->toPrimitive(a, NumberHint);
b = meta->toPrimitive(b, NumberHint);
if (JS2VAL_IS_STRING(a) || JS2VAL_IS_STRING(b)) {
const String *astr = meta->toString(a);
const String *bstr = meta->toString(b);
astr = meta->toString(a);
bstr = meta->toString(b);
push(STRING_TO_JS2VAL(concatStrings(astr, bstr)));
}
else {
@ -1007,8 +1007,8 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
baseVal = pop();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
if (!meta->readProperty(&baseVal, &mn, &lookup, RunPhase, &a))
meta->reportError(Exception::propertyAccessError, "No property named {0}", errorPos(), mn.name);
float64 num = meta->toFloat64(a);
@ -1016,6 +1016,7 @@
pushNumber(num);
baseVal = JS2VAL_VOID;
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;
case eBracketPostDec:
@ -1023,8 +1024,8 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
baseVal = pop();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
if (!meta->readProperty(&baseVal, &mn, &lookup, RunPhase, &a))
meta->reportError(Exception::propertyAccessError, "No property named {0}", errorPos(), mn.name);
float64 num = meta->toFloat64(a);
@ -1032,6 +1033,7 @@
pushNumber(num);
baseVal = JS2VAL_VOID;
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;
case eBracketPreInc:
@ -1039,8 +1041,8 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
baseVal = pop();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
if (!meta->readProperty(&baseVal, &mn, &lookup, RunPhase, &a))
meta->reportError(Exception::propertyAccessError, "No property named {0}", errorPos(), mn.name);
float64 num = meta->toFloat64(a);
@ -1048,6 +1050,7 @@
meta->writeProperty(baseVal, &mn, &lookup, true, a, RunPhase);
baseVal = JS2VAL_VOID;
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;
case eBracketPreDec:
@ -1055,8 +1058,8 @@
LookupKind lookup(false, JS2VAL_NULL);
indexVal = pop();
baseVal = pop();
const String *indexStr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*indexStr], meta->publicNamespace);
astr = meta->toString(indexVal);
Multiname mn(&meta->world.identifiers[*astr], meta->publicNamespace);
if (!meta->readProperty(&baseVal, &mn, &lookup, RunPhase, &a))
meta->reportError(Exception::propertyAccessError, "No property named {0}", errorPos(), mn.name);
float64 num = meta->toFloat64(a);
@ -1064,6 +1067,7 @@
meta->writeProperty(baseVal, &mn, &lookup, true, a, RunPhase);
baseVal = JS2VAL_VOID;
indexVal = JS2VAL_VOID;
astr = NULL;
}
break;

5
js2/src/js2op_literal.cpp
View File

@ -120,14 +120,15 @@
for (uint16 i = 0; i < argCount; i++) {
a = pop();
ASSERT(JS2VAL_IS_STRING(a));
String *name = JS2VAL_TO_STRING(a);
const StringAtom &nameAtom = meta->world.identifiers[*name];
astr = JS2VAL_TO_STRING(a);
const StringAtom &nameAtom = meta->world.identifiers[*astr];
b = pop();
DynamicPropertyBinding *dpb = new DynamicPropertyBinding(nameAtom, DynamicPropertyValue(b, DynamicPropertyValue::ENUMERATE));
pInst->dynamicProperties.insert(dpb->name, dpb);
}
push(baseVal);
baseVal = JS2VAL_VOID;
astr = NULL;
}
break;

3
js2/src/js2regexp.cpp
View File

@ -185,7 +185,7 @@ namespace MetaData {
// XXX Change constructors to take js2val pointer for the result (which would be an already
// rooted pointer).
RegExpInstance *thisInst = new RegExpInstance(meta->regexpClass);
JS2Object::RootIterator ri = JS2Object::addRoot(&thisInst);
RootKeeper rk(&thisInst);
js2val thatValue = OBJECT_TO_JS2VAL(thisInst);
REuint32 flags = 0;
@ -223,7 +223,6 @@ namespace MetaData {
}
else
meta->reportError(Exception::syntaxError, "Failed to parse RegExp : '{0}'", meta->engine->errorPos(), "/" + *regexpStr + "/" + *flagStr); // XXX what about the RE parser error message?
JS2Object::removeRoot(ri);
return thatValue;
}

5
js2/src/js2string.cpp
View File

@ -57,11 +57,9 @@ namespace MetaData {
js2val String_Constructor(JS2Metadata *meta, const js2val /*thisValue*/, js2val *argv, uint32 argc)
{
// XXX GC might happen after the new StringInstance, but before the
// object gets rooted somewhere - this is a general problem...
js2val thatValue = OBJECT_TO_JS2VAL(new StringInstance(meta, meta->stringClass->prototype, meta->stringClass));
StringInstance *strInst = checked_cast<StringInstance *>(JS2VAL_TO_OBJECT(thatValue));
JS2Object::RootIterator ri = JS2Object::addRoot(&strInst);
RootKeeper rk(&strInst);
if (argc > 0)
strInst->mValue = meta->engine->allocStringPtr(meta->toString(argv[0]));
else
@ -71,7 +69,6 @@ js2val String_Constructor(JS2Metadata *meta, const js2val /*thisValue*/, js2val
DynamicPropertyValue(meta->engine->allocNumber(strInst->mValue->length()),
DynamicPropertyValue::READONLY | DynamicPropertyValue::PERMANENT));
strInst->dynamicProperties.insert(dpb->name, dpb);
JS2Object::removeRoot(ri);
return thatValue;
}