angular2
Version:
Angular 2 - a web framework for modern web apps
171 lines • 9 kB
JavaScript
'use strict';var lang_1 = require('angular2/src/facade/lang');
var exceptions_1 = require('angular2/src/facade/exceptions');
var ReflectionCapabilities = (function () {
function ReflectionCapabilities(reflect) {
this._reflect = lang_1.isPresent(reflect) ? reflect : lang_1.global.Reflect;
}
ReflectionCapabilities.prototype.isReflectionEnabled = function () { return true; };
ReflectionCapabilities.prototype.factory = function (t) {
switch (t.length) {
case 0:
return function () { return new t(); };
case 1:
return function (a1) { return new t(a1); };
case 2:
return function (a1, a2) { return new t(a1, a2); };
case 3:
return function (a1, a2, a3) { return new t(a1, a2, a3); };
case 4:
return function (a1, a2, a3, a4) { return new t(a1, a2, a3, a4); };
case 5:
return function (a1, a2, a3, a4, a5) { return new t(a1, a2, a3, a4, a5); };
case 6:
return function (a1, a2, a3, a4, a5, a6) { return new t(a1, a2, a3, a4, a5, a6); };
case 7:
return function (a1, a2, a3, a4, a5, a6, a7) { return new t(a1, a2, a3, a4, a5, a6, a7); };
case 8:
return function (a1, a2, a3, a4, a5, a6, a7, a8) { return new t(a1, a2, a3, a4, a5, a6, a7, a8); };
case 9:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9) { return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9); };
case 10:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
};
case 11:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
};
case 12:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);
};
case 13:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13);
};
case 14:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14);
};
case 15:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15);
};
case 16:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16);
};
case 17:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17);
};
case 18:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18);
};
case 19:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19);
};
case 20:
return function (a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) {
return new t(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
};
}
;
throw new Error("Cannot create a factory for '" + lang_1.stringify(t) + "' because its constructor has more than 20 arguments");
};
/** @internal */
ReflectionCapabilities.prototype._zipTypesAndAnnotaions = function (paramTypes, paramAnnotations) {
var result;
if (typeof paramTypes === 'undefined') {
result = new Array(paramAnnotations.length);
}
else {
result = new Array(paramTypes.length);
}
for (var i = 0; i < result.length; i++) {
// TS outputs Object for parameters without types, while Traceur omits
// the annotations. For now we preserve the Traceur behavior to aid
// migration, but this can be revisited.
if (typeof paramTypes === 'undefined') {
result[i] = [];
}
else if (paramTypes[i] != Object) {
result[i] = [paramTypes[i]];
}
else {
result[i] = [];
}
if (lang_1.isPresent(paramAnnotations) && lang_1.isPresent(paramAnnotations[i])) {
result[i] = result[i].concat(paramAnnotations[i]);
}
}
return result;
};
ReflectionCapabilities.prototype.parameters = function (typeOrFunc) {
// Prefer the direct API.
if (lang_1.isPresent(typeOrFunc.parameters)) {
return typeOrFunc.parameters;
}
if (lang_1.isPresent(this._reflect) && lang_1.isPresent(this._reflect.getMetadata)) {
var paramAnnotations = this._reflect.getMetadata('parameters', typeOrFunc);
var paramTypes = this._reflect.getMetadata('design:paramtypes', typeOrFunc);
if (lang_1.isPresent(paramTypes) || lang_1.isPresent(paramAnnotations)) {
return this._zipTypesAndAnnotaions(paramTypes, paramAnnotations);
}
}
// The array has to be filled with `undefined` because holes would be skipped by `some`
var parameters = new Array(typeOrFunc.length);
parameters.fill(undefined);
return parameters;
};
ReflectionCapabilities.prototype.annotations = function (typeOrFunc) {
// Prefer the direct API.
if (lang_1.isPresent(typeOrFunc.annotations)) {
var annotations = typeOrFunc.annotations;
if (lang_1.isFunction(annotations) && annotations.annotations) {
annotations = annotations.annotations;
}
return annotations;
}
if (lang_1.isPresent(this._reflect) && lang_1.isPresent(this._reflect.getMetadata)) {
var annotations = this._reflect.getMetadata('annotations', typeOrFunc);
if (lang_1.isPresent(annotations))
return annotations;
}
return [];
};
ReflectionCapabilities.prototype.propMetadata = function (typeOrFunc) {
// Prefer the direct API.
if (lang_1.isPresent(typeOrFunc.propMetadata)) {
var propMetadata = typeOrFunc.propMetadata;
if (lang_1.isFunction(propMetadata) && propMetadata.propMetadata) {
propMetadata = propMetadata.propMetadata;
}
return propMetadata;
}
if (lang_1.isPresent(this._reflect) && lang_1.isPresent(this._reflect.getMetadata)) {
var propMetadata = this._reflect.getMetadata('propMetadata', typeOrFunc);
if (lang_1.isPresent(propMetadata))
return propMetadata;
}
return {};
};
ReflectionCapabilities.prototype.interfaces = function (type) {
throw new exceptions_1.BaseException("JavaScript does not support interfaces");
};
ReflectionCapabilities.prototype.getter = function (name) { return new Function('o', 'return o.' + name + ';'); };
ReflectionCapabilities.prototype.setter = function (name) {
return new Function('o', 'v', 'return o.' + name + ' = v;');
};
ReflectionCapabilities.prototype.method = function (name) {
var functionBody = "if (!o." + name + ") throw new Error('\"" + name + "\" is undefined');\n return o." + name + ".apply(o, args);";
return new Function('o', 'args', functionBody);
};
// There is not a concept of import uri in Js, but this is useful in developing Dart applications.
ReflectionCapabilities.prototype.importUri = function (type) { return './'; };
return ReflectionCapabilities;
})();
exports.ReflectionCapabilities = ReflectionCapabilities;
//# sourceMappingURL=reflection_capabilities.js.map