internal/runtime/Property.java

50      * We use negative flags because most properties are expected to
51      * be 'writable', 'configurable' and 'enumerable'. With negative flags,
108     /** Property flags. */
109     private int flags;
130      * @param flags property flags
133     Property(final Object key, final int flags, final int slot) {
136         this.flags = flags;
145     Property(final Property property, final int flags) {
149         this.flags              = flags;
169      * return the result of merging their flags.
173      * @return merged flags.
226      * Property flag utility method for {@link PropertyDescriptor}. Get the property flags
230      * @return flags for properties that conform to property descriptor
271         return (flags & NOT_WRITABLE) == 0;
279         return (flags & NOT_CONFIGURABLE) == 0;
287         return (flags & NOT_ENUMERABLE) == 0;
295         return (flags & IS_PARAMETER) != 0;
303         return (flags & HAS_ARGUMENTS) != 0;
325         return (flags & IS_BOUND) != 0;
334         return (flags & NEEDS_DECLARATION) != 0;
338      * Add more property flags to the property. Properties are immutable here,
342      * @param propertyFlags flags to be OR:ed to the existing property flags
346         if ((this.flags & propertyFlags) != propertyFlags) {
348             cloned.flags |= propertyFlags;
355      * Get the flags for this property
356      * @return property flags
359         return flags;
363      * Remove property flags from the property. Properties are immutable here,
367      * @param propertyFlags flags to be subtracted from the existing property flags
371         if ((this.flags & propertyFlags) != 0) {
373             cloned.flags &= ~propertyFlags;
384      * @param propertyFlags flags that are replacing from the existing property flags
388         if (this.flags != propertyFlags) {
390             cloned.flags &= ~MODIFY_MASK;
391             cloned.flags |= propertyFlags & MODIFY_MASK;
558         return Objects.hashCode(this.key) ^ flags ^ getSlot() ^ (t == null ? 0 : t.hashCode());
624             append(indent(Integer.toHexString(flags), 4)).
691         return (flags & IS_FUNCTION_DECLARATION) != 0;
699         return (flags & IS_LEXICAL_BINDING) != 0;
707         return (flags & DUAL_FIELDS) != 0;
715         return (flags & IS_ACCESSOR_PROPERTY) != 0;