protected boolean canPut(ESString name) {
int hash = name.hashCode() & mask;
while (true) {
ESString propName = propNames[hash];
if (name.equals(propName) && propValues[hash] != null)
return (propFlags[hash] & READ_ONLY) == 0;
else if (propName == null) {
if (prototype instanceof ESObject) return ((ESObject) prototype).canPut(name);
else return true;
}
hash = (hash + 1) & mask;
}
}
/** Puts a new value in the property table with the appropriate flags */
public void setProperty(ESString name, ESBase value) throws Throwable {
if (copyState != DIRTY) {
if (copyState == COW) copyAll();
copyState = DIRTY;
}
if (value == esEmpty) value = esUndefined;
int hash = name.hashCode() & mask;
while (true) {
ESString propName = propNames[hash];
if (propValues[hash] == null) {
if (!prototype.canPut(name)) return;
if (propName == null) fill++;
propNames[hash] = name;
/*
if ((propFlags[hash] & WATCH) != 0)
value = callWatch(name, hash, value);
*/
propValues[hash] = value;
propFlags[hash] = 0;
size++;
if (propNames.length <= 4 * size) {
resize(4 * propNames.length);
} else if (propNames.length <= 2 * fill) refill();
return;
} else if (propName != name && !propName.equals(name)) {
hash = (hash + 1) & mask;
continue;
} else if ((propFlags[hash] & READ_ONLY) != 0) return;
else {
/*
if ((propFlags[hash] & WATCH) != 0)
value = callWatch(name, hash, value);
*/
propValues[hash] = value;
return;
}
}
}
/** Gets a property value. */
public ESBase getProperty(ESString name) throws Throwable {
int hash = name.hashCode() & mask;
while (true) {
ESString propName = propNames[hash];
if (propName == name || name.equals(propName)) {
ESBase value = propValues[hash];
return value == null ? prototype.getProperty(name) : value;
} else if (propName == null) {
ESBase value = prototype.getProperty(name);
if (snapPrototype) setProperty(name, value);
return value;
}
hash = (hash + 1) & mask;
}
}
public void unwatch(ESString name) {
if (copyState != DIRTY) {
if (copyState == COW) copyAll();
copyState = DIRTY;
}
int hash = name.hashCode() & mask;
while (true) {
ESString propName = propNames[hash];
if (propName == null) return;
else if (propName.equals(name)) {
propFlags[hash] &= ~WATCH;
return;
}
}
}
public void watch(ESString name, ESBase fun) {
if (copyState != DIRTY) {
if (copyState == COW) copyAll();
copyState = DIRTY;
}
int hash = name.hashCode() & mask;
while (true) {
ESString propName = propNames[hash];
if (propValues[hash] == null) {
if (!prototype.canPut(name)) return;
if (propName == null) fill++;
propNames[hash] = name;
propValues[hash] = esEmpty;
propFlags[hash] = WATCH;
if (propWatch == null) propWatch = new ESBase[propFlags.length];
propWatch[hash] = fun;
size++;
if (propNames.length <= 4 * size) resize(4 * propNames.length);
else if (propNames.length <= 2 * fill) refill();
return;
} else if (propName != name && !propName.equals(name)) {
hash = (hash + 1) & mask;
continue;
} else if ((propFlags[hash] & READ_ONLY) != 0) return;
else {
propFlags[hash] |= WATCH;
if (propWatch == null) propWatch = new ESBase[propFlags.length];
propWatch[hash] = fun;
return;
}
}
}
/** Deletes the entry. Returns true if successful. */
public ESBase delete(ESString name) throws Throwable {
if (copyState != DIRTY) {
if (copyState == COW) copyAll();
copyState = DIRTY;
}
int hash = name.hashCode() & mask;
while (true) {
ESString hashName = propNames[hash];
if (hashName == null) return ESBoolean.FALSE;
else if (propValues[hash] != null && hashName.equals(name)) {
if ((propFlags[hash] & DONT_DELETE) != 0) return ESBoolean.FALSE;
else {
propValues[hash] = null;
size--;
return ESBoolean.TRUE;
}
}
hash = (hash + 1) & mask;
}
}
public void put(ESString name, ESBase value, int flags) {
int hash = name.hashCode() & mask;
while (true) {
ESString propName = propNames[hash];
if (propName == null || propValues[hash] == null || propName.equals(name)) {
if (propName == null) fill++;
if (propValues[hash] == null) size++;
propNames[hash] = name;
propValues[hash] = value;
propFlags[hash] = flags;
if (propNames.length <= 4 * size) {
resize(4 * propNames.length);
} else if (propNames.length <= 2 * fill) refill();
return;
}
hash = (hash + 1) & mask;
}
}
