65 lines
2.2 KiB
Haxe
65 lines
2.2 KiB
Haxe
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/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package haxe.rtti;
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import haxe.rtti.CType;
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/**
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Rtti is a helper class which supplements the `@:rtti` metadata.
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@see <https://haxe.org/manual/cr-rtti.html>
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**/
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class Rtti {
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/**
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Returns the `haxe.rtti.CType.Classdef` corresponding to class `c`.
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If `c` has no runtime type information, e.g. because no `@:rtti` was
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added, an exception of type `String` is thrown.
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If `c` is `null`, the result is unspecified.
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**/
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static public function getRtti<T>(c:Class<T>):Classdef {
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var rtti = Reflect.field(c, "__rtti");
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if (rtti == null) {
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throw 'Class ${Type.getClassName(c)} has no RTTI information, consider adding @:rtti';
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}
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var x = Xml.parse(rtti).firstElement();
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var infos = new haxe.rtti.XmlParser().processElement(x);
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switch (infos) {
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case TClassdecl(c):
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return c;
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case var t:
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throw 'Enum mismatch: expected TClassDecl but found $t';
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}
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}
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/**
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Tells if `c` has runtime type information.
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If `c` is `null`, the result is unspecified.
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**/
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static public function hasRtti<T>(c:Class<T>):Bool {
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return Lambda.has(Type.getClassFields(c), "__rtti");
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}
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}
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