Method deoptimizePath

src/ast/nodes/shared/ObjectEntity.ts:224–259

(path: ObjectPath)

	// Assumption: If only a specific path is deoptimized, no accessors are created
	deoptimizePath(path: ObjectPath): void {
		if (this.hasLostTrack || this.immutable) {
			return;
		}
		const key = path[0];
		if (path.length === 1) {
			if (key === UnknownInteger) {
				return this.deoptimizeIntegerProperties();
			} else if (!isConcreteKey(key)) {
				return this.deoptimizeAllProperties(key === UnknownNonAccessorKey);
			}
			if (!this.deoptimizedPaths.get(key)) {
				this.deoptimizedPaths.set(key, true);

				// we only deoptimizeCache exact matches as in all other cases,
				// we do not return a literal value or return expression
				const expressionsToBeDeoptimized = this.expressionsToBeDeoptimizedByKey.get(key);
				if (expressionsToBeDeoptimized) {
					for (const expression of expressionsToBeDeoptimized) {
						expression.deoptimizeCache();
					}
				}
			}
		}

		const subPath = path.length === 1 ? UNKNOWN_PATH : path.slice(1);
		for (const property of isConcreteKey(key)
			? [
					...(this.propertiesAndGettersByKey.get(key) || this.unmatchablePropertiesAndGetters),
					...(this.settersByKey.get(key) || this.unmatchableSetters)
				]
			: this.allProperties) {
			property.deoptimizePath(subPath);
		}
		this.prototypeExpression?.deoptimizePath(path.length === 1 ? [path[0], UnknownKey] : path);
	}

	getLiteralValueAtPath(
		path: ObjectPath,