git ssb - added type checking · wanderer🌟/referenceMap@32aeaca5

wanderer committed on 12/19/2017, 9:22:04 PM
Parent: 5371632604920c465015a0273871defe9feabdfa

index.js	changed
tests/index.js	changed

index.jsView
		@@ -11,20 +11,21 @@
11	11 …	* referance
12	12 …	* @param {*} obj
13	13 …	* @return {integer}
14	14 …	*/
15		- add (obj) {
	15 …	+ add (obj, type) {
16	16 …	return this._map.push(obj) - 1
17	17 …	}
18	18 …
19	19 …	/**
20	20 …	* gets a POJO given a refernce as an int
21	21 …	* @param {integer} ref
	22 …	+ * @param {Object} type - optional, a contructor that the retreived object should be an instance of
22	23 …	* @return {*}
23	24 …	*/
24		- get (ref) {
	25 …	+ get (ref, type) {
25	26 …	const obj = this._map[ref]
26		- if (obj === undefined) {
	27 …	+ if (obj === undefined \|\| (type && type !== obj.constructor)) {
27	28 …	throw new Error('invalid referance')
28	29 …	}
29	30 …	return obj
30	31 …	}

tests/index.jsView
		@@ -1,9 +1,9 @@
1	1 …	const tape = require('tape')
2	2 …	const ReferanceMap = require('../index.js')
3	3 …
4	4 …	tape('referance mapping', t => {
5		- t.plan(9)
	5 …	+ t.plan(11)
6	6 …	const referanceMap = new ReferanceMap()
7	7 …	const obj1 = {}
8	8 …	const obj2 = {}
9	9 …	const ref1 = referanceMap.add(obj1)
		@@ -35,5 +35,14 @@
35	35 …	referanceMap.get(ref2)
36	36 …	} catch (e) {
37	37 …	t.true(true, 'should clear refances')
38	38 …	}
	39 …	+
	40 …	+ const aMap = new Map()
	41 …	+ const ref3 = referanceMap.add(aMap)
	42 …	+ t.equals(referanceMap.get(ref3, Map), aMap)
WritePreview
	43 …	+ try {
	44 …	+ referanceMap.get(ref3, Set)
	45 …	+ } catch (e) {
	46 …	+ t.true(true, 'should throw if wrong type')
	47 …	+ }
39	48 …	})

wanderer🌟 / referenceMap