Fix type mapping #72
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Fix type mapping #72
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It also removes the `Codec` class and exports a plain object
instead. This has consequences for imports.
BREAKING CHANGE:
Only use names exports as default exports don't play well with
CommonJS + Typescript typing.
This means that when you use ESM imports, e.g. the raw codec is
no longer imported as
```js
import raw from 'multiformats/codecs/raw'
```
but as
```js
import * as raw from 'multiformats/codecs/raw'
```
The CJS import for codecs don't change, it's still `const raw = require('multiformats/codecs/raw`.
Though other imports change, so
```js
import CID from 'multiformats/cid'
const CID = require('multiformats/cid')
```
is now
```js
import { CID } from 'multiformats/cid'
const { CID } = require ('multiformats/cid')
```
- "*" match seems to cause multiple path substitutions microsoft/TypeScript#41284 that packge name prefix seems to resolve - add types field which acts as main in TS
- modify scripts to use newer tsc --bulid command - generate types on prepare so linking to git dependency works - workaround douple substitution by mapping types/* to itself (see microsoft/TypeScript#41284)
This was referenced Mar 30, 2021
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👍 amazing detective work, |
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This is based of #70 pull request. And resolves the issue described here #66 (comment). There is also relevant thread here ipld/js-car#7
Overview of changes
tsc --bulidcommand (they use different code path and other ones will eventually be removed)typeVersionssubstitution occurs multiple times causing resolution to fail microsoft/TypeScript#41284, which causes it to do path substitution twice whentypesfield is present. That causesmultiformatsto be rosolved tonode_modules/multiformats/types/index.d.tsand then withnode_modules/multiformats/types/types/index.d.ts. Here we just maptypes/*back totypes/*which prevents second substitution and avoids the mentioned bug.I really wish things worked without all this hacks, but 🤷♂️