@awayfl/avm2/dist/lib/nat/getMethodOrAccessorNative.js

Virtual machine for executing AS3 code

import { getNativesForTrait } from './getNativesForTrait';
import { hasOwnProperty, release, warning, assertUnreachable } from '@awayfl/swf-loader';
import { assert } from '@awayjs/graphics';
/**
 * Searches for a native property in a list of native holders.
 */
export function getMethodOrAccessorNative(trait, throwErrors) {
    if (throwErrors === void 0) { throwErrors = true; }
    var natives = getNativesForTrait(trait, throwErrors);
    var name = trait.multiname.name;
    for (var i = 0; i < natives.length; i++) {
        var native = natives[i];
        var fullName = name;
        // We prefix methods that should not be exported with "native_", check to see
        // if a method exists with that prefix first when looking for native methods.
        if (!hasOwnProperty(native, name) && hasOwnProperty(native, 'native_' + name)) {
            fullName = 'native_' + name;
        }
        if (hasOwnProperty(native, fullName)) {
            var value = void 0;
            if (trait.isAccessor()) {
                var pd = Object.getOwnPropertyDescriptor(native, fullName);
                if (trait.isGetter()) {
                    value = pd.get;
                }
                else {
                    value = pd.set;
                }
            }
            else {
                release || assert(trait.isMethod());
                value = native[fullName];
            }
            release || assert(value, 'Method or Accessor property exists but it\'s undefined: '
                + trait.holder + ' ' + trait);
            return value;
        }
    }
    warning('No native method for: ' + trait.holder + ' ' + trait
        + ', make sure you\'ve got the static keyword for static methods.');
    release || assertUnreachable('Cannot find ' + trait + ' in natives.');
    return null;
}