field-type.js
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field-type.js
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	"use strict";
	const locreq = require("locreq")(__dirname);
	const Promise = require("bluebird");

	const Errors = locreq("lib/response/error.js");
	const default_methods = require("./field-type-default-methods.js");

	function wrap_method_in_promise(context, declaration, method_name) {
	return function() {
	return Promise.resolve(
	declaration[method_name].apply(context, arguments)
	);
	};
	}

	const FieldType = function(app, declaration) {
	let self;

	if (declaration instanceof FieldType) {
	return declaration;
	} else if (typeof declaration === "string") {
	return app.ChipManager.get_chip("field_type", declaration);
	} else if (declaration.extends) {
	const parent_field_type = app.ChipManager.get_chip(
	"field_type",
	declaration.extends
	);
	self = Object.create(parent_field_type);
	} else {
	self = this;
	for (const method_name in default_methods) {
	self[method_name] = default_methods[method_name];
	}
	}

	for (const prop_name in declaration) {
	if (
	default_methods[prop_name] !== undefined &&
	typeof self[prop_name] === "function"
	) {
	self[prop_name] = wrap_method_in_promise(
	self,
	declaration,
	prop_name
	);
	self[prop_name].origin = declaration.name;
	} else {
	self[prop_name] = declaration[prop_name];
	}
	}
	return self;
	};

	FieldType.type_name = "field_type";

	module.exports = FieldType;