92 lines
2.1 KiB
JavaScript
92 lines
2.1 KiB
JavaScript
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import Serializable from './Serializable.js';
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import minify from './minify.js';
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export default class Instance extends Serializable {
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module = null;
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links = {}
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system = null;
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context = null;
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locals = [];
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// reconstruct context when we need it...
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createContext() {
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let ctx = {};
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for(const name in this.links) {
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ctx[name] = this.links[name];
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}
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for(const name in this.module.imports) {
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ctx[name] = this.module.imports[name];
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this.locals.push(name);
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}
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ctx = {
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...ctx,
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...this.system.staticInstances
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}
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for(const identifier in this.system.staticInstances) {
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this.locals.push(identifier);
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}
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ctx.create = this.system.newInstance.bind(this.system);
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this.locals.push('create');
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this.context = ctx;
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};
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ready = false;
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constructor(module, location, parameters, system) {
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super();
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this.module = module;
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this.location = location;
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this.system = system;
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for(const name of this.module.links.optional.arrays) this.links[name] = [];
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for(const name of this.module.links.optional.single) this.links[name] = null;
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this.createContext();
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this._link = new Proxy(this, {
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get(target, prop, receiver) {
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if(prop === 'restore') return undefined;
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if(prop in target.module.functions) {
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return target.invokeInternal.bind(target, prop);
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}
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return undefined;
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}
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});
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}
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hasPublicFunction(name) {
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return (name in this.module.functions);
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}
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invokeInternal(name, ...args) {
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// console.log('invoking', name);
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const content = this.module.functions[name];
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if(!content) throw new TypeError(name + ' is not a function!');
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return evalInContext(content, this.context, this.locals);
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}
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get link () {
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return this._link;
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}
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}
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minify()
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function evalInContext(js, context, locals) {
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//# Return the results of the in-line anonymous function we .call with the passed context
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const that = this;
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return function() {
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const preminJs = `
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'use strict';
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(() => {
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${locals.map((k) => `
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const ${k} = this.${k};
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`).join('\n')}
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${js};
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})();`;
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const newJs = minify(preminJs);
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// newJs should inject into result...
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let result;
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eval(newJs);
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return result;
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}.call(context);
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} |