power-di
Version:
A lightweight Dependency Injection library. Using es6 and other features, remove unnecessary concepts, easy and convenient to use.
154 lines • 6.34 kB
JavaScript
;
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.aspect = exports.genAspectWrapper = void 0;
var metadata_1 = require("../class/metadata");
/* istanbul ignore next */
var normalFn = function normalFn() { };
/* istanbul ignore next */
var generatorFn = function () { return __generator(this, function (_a) {
return [2 /*return*/];
}); };
var normalFuncPrototype = Object.getPrototypeOf(normalFn);
var generatorFuncPrototype = Object.getPrototypeOf(generatorFn);
function isGeneratorFunction(fn) {
// if use some transformer, generator is polyfill maybe.
return (typeof fn === 'function' &&
normalFuncPrototype !== generatorFuncPrototype &&
Object.getPrototypeOf(fn) === generatorFuncPrototype);
}
function run(func, context) {
func && func(context);
}
function createContext(ioc, inst, fn, args) {
return {
ioc: ioc,
functionName: fn.__name || fn.name,
inst: inst,
data: {},
args: args,
};
}
function genAspectWrapper(ioc, point, oriFn) {
var newFn;
if (isGeneratorFunction(oriFn)) {
newFn = function () {
var _i, context, _a, error_1;
var args = [];
for (_i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
context = createContext(ioc, this, oriFn, args);
_b.label = 1;
case 1:
_b.trys.push([1, 4, , 5]);
run(point.before, context);
if (!!context.skipRunning) return [3 /*break*/, 3];
_a = context;
return [4 /*yield*/, oriFn.apply(this, context.args)];
case 2:
_a.ret = _b.sent();
_b.label = 3;
case 3:
run(point.after, context);
return [2 /*return*/, context.ret];
case 4:
error_1 = _b.sent();
context.err = error_1;
run(point.error, context);
if (context.err) {
throw context.err;
}
return [3 /*break*/, 5];
case 5: return [2 /*return*/];
}
});
};
}
else {
newFn = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var context = createContext(ioc, this, oriFn, args);
try {
run(point.before, context);
if (!context.skipRunning) {
context.ret = oriFn.apply(this, context.args);
}
if (context.ret instanceof Promise) {
context.ret = context.ret.then(function (ret) {
context.ret = ret;
run(point.after, context);
return context.ret;
});
if (point.error) {
context.ret = context.ret.catch(function (error) {
context.err = error;
run(point.error, context);
if (context.err) {
throw context.err;
}
});
}
return context.ret;
}
else {
run(point.after, context);
return context.ret;
}
}
catch (error) {
context.err = error;
run(point.error, context);
if (context.err) {
throw context.err;
}
}
};
}
newFn.__name = oriFn.__name || oriFn.name;
return newFn;
}
exports.genAspectWrapper = genAspectWrapper;
function aspect(point) {
if (point === void 0) { point = {}; }
return function (target, key) {
(0, metadata_1.getMetadata)(target.constructor).aspects.push({
key: key,
point: point,
});
};
}
exports.aspect = aspect;
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