inversify/amd/annotation/decorator_utils.js

A powerful and lightweight inversion of control container for JavaScript and Node.js apps powered by TypeScript.

var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
define(["require", "exports", "../constants/error_msgs", "../constants/metadata_keys", "../utils/js"], function (require, exports, ERROR_MSGS, METADATA_KEY, js_1) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.createTaggedDecorator = exports.tagProperty = exports.tagParameter = exports.decorate = void 0;
    ERROR_MSGS = __importStar(ERROR_MSGS);
    METADATA_KEY = __importStar(METADATA_KEY);
    function targetIsConstructorFunction(target) {
        return target.prototype !== undefined;
    }
    function _throwIfMethodParameter(parameterName) {
        if (parameterName !== undefined) {
            throw new Error(ERROR_MSGS.INVALID_DECORATOR_OPERATION);
        }
    }
    function tagParameter(annotationTarget, parameterName, parameterIndex, metadata) {
        _throwIfMethodParameter(parameterName);
        _tagParameterOrProperty(METADATA_KEY.TAGGED, annotationTarget, parameterIndex.toString(), metadata);
    }
    exports.tagParameter = tagParameter;
    function tagProperty(annotationTarget, propertyName, metadata) {
        if (targetIsConstructorFunction(annotationTarget)) {
            throw new Error(ERROR_MSGS.INVALID_DECORATOR_OPERATION);
        }
        _tagParameterOrProperty(METADATA_KEY.TAGGED_PROP, annotationTarget.constructor, propertyName, metadata);
    }
    exports.tagProperty = tagProperty;
    function _ensureNoMetadataKeyDuplicates(metadata) {
        var metadatas = [];
        if (Array.isArray(metadata)) {
            metadatas = metadata;
            var duplicate = (0, js_1.getFirstArrayDuplicate)(metadatas.map(function (md) { return md.key; }));
            if (duplicate !== undefined) {
                throw new Error(ERROR_MSGS.DUPLICATED_METADATA + " " + duplicate.toString());
            }
        }
        else {
            metadatas = [metadata];
        }
        return metadatas;
    }
    function _tagParameterOrProperty(metadataKey, annotationTarget, key, metadata) {
        var metadatas = _ensureNoMetadataKeyDuplicates(metadata);
        var paramsOrPropertiesMetadata = {};
        if (Reflect.hasOwnMetadata(metadataKey, annotationTarget)) {
            paramsOrPropertiesMetadata = Reflect.getMetadata(metadataKey, annotationTarget);
        }
        var paramOrPropertyMetadata = paramsOrPropertiesMetadata[key];
        if (paramOrPropertyMetadata === undefined) {
            paramOrPropertyMetadata = [];
        }
        else {
            var _loop_1 = function (m) {
                if (metadatas.some(function (md) { return md.key === m.key; })) {
                    throw new Error(ERROR_MSGS.DUPLICATED_METADATA + " " + m.key.toString());
                }
            };
            for (var _i = 0, paramOrPropertyMetadata_1 = paramOrPropertyMetadata; _i < paramOrPropertyMetadata_1.length; _i++) {
                var m = paramOrPropertyMetadata_1[_i];
                _loop_1(m);
            }
        }
        paramOrPropertyMetadata.push.apply(paramOrPropertyMetadata, metadatas);
        paramsOrPropertiesMetadata[key] = paramOrPropertyMetadata;
        Reflect.defineMetadata(metadataKey, paramsOrPropertiesMetadata, annotationTarget);
    }
    function createTaggedDecorator(metadata) {
        return function (target, targetKey, indexOrPropertyDescriptor) {
            if (typeof indexOrPropertyDescriptor === 'number') {
                tagParameter(target, targetKey, indexOrPropertyDescriptor, metadata);
            }
            else {
                tagProperty(target, targetKey, metadata);
            }
        };
    }
    exports.createTaggedDecorator = createTaggedDecorator;
    function _decorate(decorators, target) {
        Reflect.decorate(decorators, target);
    }
    function _param(paramIndex, decorator) {
        return function (target, key) { decorator(target, key, paramIndex); };
    }
    function decorate(decorator, target, parameterIndexOrProperty) {
        if (typeof parameterIndexOrProperty === 'number') {
            _decorate([_param(parameterIndexOrProperty, decorator)], target);
        }
        else if (typeof parameterIndexOrProperty === 'string') {
            Reflect.decorate([decorator], target, parameterIndexOrProperty);
        }
        else {
            _decorate([decorator], target);
        }
    }
    exports.decorate = decorate;
});