ts-raii-scope/dist/raiiMethodScope.js

TypeScript RAII proof of concept

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const scopeStack_1 = require("./scopeStack");
// noinspection JSUnusedGlobalSymbols
function SyncRaiiMethodScope(target, propertyName, propertyDescriptor) {
    const method = propertyDescriptor.value;
    if (method) {
        propertyDescriptor.value = function (...args) {
            const raiiScope = scopeStack_1.scopeStack.enterScope(false);
            try {
                return method.call(target, ...args);
            }
            finally {
                scopeStack_1.scopeStack.exitScope(raiiScope);
            }
        };
    }
    return propertyDescriptor;
}
exports.SyncRaiiMethodScope = SyncRaiiMethodScope;
// noinspection JSUnusedGlobalSymbols
function AsyncRaiiMethodScope(target, propertyName, propertyDescriptor) {
    const method = propertyDescriptor.value;
    if (method) {
        propertyDescriptor.value = function (...args) {
            const raiiScope = scopeStack_1.scopeStack.enterScope(true);
            const methodPromise = method.call(target, ...args);
            scopeStack_1.scopeStack.exitScope(raiiScope);
            return methodPromise.then(async (result) => {
                await scopeStack_1.scopeStack.asyncScopeDone(raiiScope);
                return result;
            }, async (reason) => {
                await scopeStack_1.scopeStack.asyncScopeDone(raiiScope);
                throw reason;
            });
        };
    }
    return propertyDescriptor;
}
exports.AsyncRaiiMethodScope = AsyncRaiiMethodScope;