Adopt @matt.kantor/either package

Author: mkantor

package-lock.json

@@ -19,6 +19,7 @@
     "typescript": "^5.6.2"
   },
   "dependencies": {
+    "@matt.kantor/either": "^1.0.0",
     "@matt.kantor/option": "^1.0.0",
     "kleur": "^4.1.5"
   }

package.json

@@ -1,5 +1,5 @@
+import either, { type Either } from '@matt.kantor/either'
 import assert from 'node:assert'
-import { either, type Either } from './adts.js'
 import { compile } from './language/compiling.js'
 import type { Atom, Molecule } from './language/parsing.js'
 import { parse } from './language/parsing/parser.js'

src/adts.ts

@@ -1,5 +1,5 @@
+import either, { type Either } from '@matt.kantor/either'
 import { parseArgs } from 'util'
-import { either, type Either } from '../../adts.js'
 import { type JsonValueForbiddingSymbolicKeys } from '../parsing.js'
 
 export type InvalidJsonError = {

src/adts/either-utilities.ts

@@ -1,5 +1,5 @@
+import either, { type Either } from '@matt.kantor/either'
 import { parseArgs } from 'util'
-import { either, type Either } from '../../adts.js'
 import { type SyntaxTree } from '../parsing/syntax-tree.js'
 import { unparse, type Notation } from '../unparsing.js'
 import { prettyJson } from '../unparsing/pretty-json.js'

src/adts/either.ts

@@ -1,4 +1,4 @@
-import { either, type Either } from '../../adts.js'
+import either, { type Either } from '@matt.kantor/either'
 import { compile } from '../compiling.js'
 import type { Atom, Molecule } from '../parsing.js'
 import { parse } from '../parsing/parser.js'

src/end-to-end.test.ts

@@ -1,5 +1,5 @@
+import either, { type Either } from '@matt.kantor/either'
 import assert from 'node:assert'
-import { either, type Either } from '../../adts.js'
 import { withPhantomData } from '../../phantom-data.js'
 import { testCases } from '../../test-utilities.test.js'
 import type { ElaborationError } from '../errors.js'