Function set

packages/base/src/UI5Element.ts:1270–1304

(this: UI5Element, value: PropertyValue)

				},

				set(this: UI5Element, value: PropertyValue) {
					const ctor = this.constructor as typeof UI5Element;
					const oldState = origGet ? origGet.call(this) : this._state[prop];

					const isDifferent = oldState !== value;
					if (isDifferent) {
						// if the decorator is on a setter, use it for storage
						if (origSet) {
							origSet.call(this, value);
						} else {
							this._state[prop] = value;
						}
						_invalidate.call(this, {
							type: "property",
							name: prop,
							newValue: value,
							oldValue: oldState,
						});

						if (this._rendered) {
							// the component is already rendered, indicating it is not the constructor -
							// therefore the attribute can be set synchronously.

							// get the effective value of the property,
							// as it might differ from the provided value
							const newValue = origGet ? origGet.call(this) : this._state[prop];

							this._updateAttribute(prop, newValue);
						}

						if (ctor.getMetadata().isFormAssociated()) {
							setFormValue(this as unknown as IFormInputElement);
						}
					}
				},
			});
		}