esm: unflag `Module.register` and allow nested loader `import()` by izaakschroeder · Pull Request #48559 · nodejs/node

Major functional changes:

- Allow `import()` to work within loaders that require other loaders,
- Unflag the use of `Module.register`.

A new interface `Customizations` has been created in order to unify
`ModuleLoader` (previously `DefaultModuleLoader`), `Hooks` and
`CustomizedModuleLoader` all of which now implement it:

```ts
interface LoadResult {
  format: ModuleFormat;
  source: ModuleSource;
}

interface ResolveResult {
  format: string;
  url: URL['href'];
}

interface Customizations {
  allowImportMetaResolve: boolean;
  load(url: string, context: object): Promise<LoadResult>
  resolve(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ): Promise<ResolveResult>
  resolveSync(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ) ResolveResult;
  register(specifier: string, parentUrl: string): any;
  forceLoadHooks(): void;
  importMetaInitialize(meta, context, loader): void;
}
```

The `ModuleLoader` class now has `setCustomizations` which takes an
object of this shape and delegates its responsibilities to this object
if present.

Note that two properties `allowImportMetaResolve` and `resolveSync`
exist now as a mechanism for `import.meta.resolve` – since `Hooks`
does not implement `resolveSync` other loaders cannot use
`import.meta.resolve`; `allowImportMetaResolve` is a way of checking
for that case instead of invoking `resolveSync` and erroring.

Fixes nodejs#48515
Closes nodejs#48439

PR-URL: nodejs#48559
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Major functional changes:

- Allow `import()` to work within loaders that require other loaders,
- Unflag the use of `Module.register`.

A new interface `Customizations` has been created in order to unify
`ModuleLoader` (previously `DefaultModuleLoader`), `Hooks` and
`CustomizedModuleLoader` all of which now implement it:

```ts
interface LoadResult {
  format: ModuleFormat;
  source: ModuleSource;
}

interface ResolveResult {
  format: string;
  url: URL['href'];
}

interface Customizations {
  allowImportMetaResolve: boolean;
  load(url: string, context: object): Promise<LoadResult>
  resolve(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ): Promise<ResolveResult>
  resolveSync(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ) ResolveResult;
  register(specifier: string, parentUrl: string): any;
  forceLoadHooks(): void;
  importMetaInitialize(meta, context, loader): void;
}
```

The `ModuleLoader` class now has `setCustomizations` which takes an
object of this shape and delegates its responsibilities to this object
if present.

Note that two properties `allowImportMetaResolve` and `resolveSync`
exist now as a mechanism for `import.meta.resolve` – since `Hooks`
does not implement `resolveSync` other loaders cannot use
`import.meta.resolve`; `allowImportMetaResolve` is a way of checking
for that case instead of invoking `resolveSync` and erroring.

Fixes nodejs#48515
Closes nodejs#48439

PR-URL: nodejs#48559
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Major functional changes:

- Allow `import()` to work within loaders that require other loaders,
- Unflag the use of `Module.register`.

A new interface `Customizations` has been created in order to unify
`ModuleLoader` (previously `DefaultModuleLoader`), `Hooks` and
`CustomizedModuleLoader` all of which now implement it:

```ts
interface LoadResult {
  format: ModuleFormat;
  source: ModuleSource;
}

interface ResolveResult {
  format: string;
  url: URL['href'];
}

interface Customizations {
  allowImportMetaResolve: boolean;
  load(url: string, context: object): Promise<LoadResult>
  resolve(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ): Promise<ResolveResult>
  resolveSync(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ) ResolveResult;
  register(specifier: string, parentUrl: string): any;
  forceLoadHooks(): void;
  importMetaInitialize(meta, context, loader): void;
}
```

The `ModuleLoader` class now has `setCustomizations` which takes an
object of this shape and delegates its responsibilities to this object
if present.

Note that two properties `allowImportMetaResolve` and `resolveSync`
exist now as a mechanism for `import.meta.resolve` – since `Hooks`
does not implement `resolveSync` other loaders cannot use
`import.meta.resolve`; `allowImportMetaResolve` is a way of checking
for that case instead of invoking `resolveSync` and erroring.

Fixes nodejs#48515
Closes nodejs#48439

PR-URL: nodejs#48559
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Major functional changes:

- Allow `import()` to work within loaders that require other loaders,
- Unflag the use of `Module.register`.

A new interface `Customizations` has been created in order to unify
`ModuleLoader` (previously `DefaultModuleLoader`), `Hooks` and
`CustomizedModuleLoader` all of which now implement it:

```ts
interface LoadResult {
  format: ModuleFormat;
  source: ModuleSource;
}

interface ResolveResult {
  format: string;
  url: URL['href'];
}

interface Customizations {
  allowImportMetaResolve: boolean;
  load(url: string, context: object): Promise<LoadResult>
  resolve(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ): Promise<ResolveResult>
  resolveSync(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ) ResolveResult;
  register(specifier: string, parentUrl: string): any;
  forceLoadHooks(): void;
  importMetaInitialize(meta, context, loader): void;
}
```

The `ModuleLoader` class now has `setCustomizations` which takes an
object of this shape and delegates its responsibilities to this object
if present.

Note that two properties `allowImportMetaResolve` and `resolveSync`
exist now as a mechanism for `import.meta.resolve` – since `Hooks`
does not implement `resolveSync` other loaders cannot use
`import.meta.resolve`; `allowImportMetaResolve` is a way of checking
for that case instead of invoking `resolveSync` and erroring.

Fixes nodejs#48515
Closes nodejs#48439

PR-URL: nodejs#48559
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Major functional changes:

- Allow `import()` to work within loaders that require other loaders,
- Unflag the use of `Module.register`.

A new interface `Customizations` has been created in order to unify
`ModuleLoader` (previously `DefaultModuleLoader`), `Hooks` and
`CustomizedModuleLoader` all of which now implement it:

```ts
interface LoadResult {
  format: ModuleFormat;
  source: ModuleSource;
}

interface ResolveResult {
  format: string;
  url: URL['href'];
}

interface Customizations {
  allowImportMetaResolve: boolean;
  load(url: string, context: object): Promise<LoadResult>
  resolve(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ): Promise<ResolveResult>
  resolveSync(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ) ResolveResult;
  register(specifier: string, parentUrl: string): any;
  forceLoadHooks(): void;
  importMetaInitialize(meta, context, loader): void;
}
```

The `ModuleLoader` class now has `setCustomizations` which takes an
object of this shape and delegates its responsibilities to this object
if present.

Note that two properties `allowImportMetaResolve` and `resolveSync`
exist now as a mechanism for `import.meta.resolve` – since `Hooks`
does not implement `resolveSync` other loaders cannot use
`import.meta.resolve`; `allowImportMetaResolve` is a way of checking
for that case instead of invoking `resolveSync` and erroring.

Fixes nodejs#48515
Closes nodejs#48439

PR-URL: nodejs#48559
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Major functional changes:

- Allow `import()` to work within loaders that require other loaders,
- Unflag the use of `Module.register`.

A new interface `Customizations` has been created in order to unify
`ModuleLoader` (previously `DefaultModuleLoader`), `Hooks` and
`CustomizedModuleLoader` all of which now implement it:

```ts
interface LoadResult {
  format: ModuleFormat;
  source: ModuleSource;
}

interface ResolveResult {
  format: string;
  url: URL['href'];
}

interface Customizations {
  allowImportMetaResolve: boolean;
  load(url: string, context: object): Promise<LoadResult>
  resolve(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ): Promise<ResolveResult>
  resolveSync(
    originalSpecifier:
    string, parentURL: string,
    importAssertions: Record<string, string>
  ) ResolveResult;
  register(specifier: string, parentUrl: string): any;
  forceLoadHooks(): void;
  importMetaInitialize(meta, context, loader): void;
}
```

The `ModuleLoader` class now has `setCustomizations` which takes an
object of this shape and delegates its responsibilities to this object
if present.

Note that two properties `allowImportMetaResolve` and `resolveSync`
exist now as a mechanism for `import.meta.resolve` – since `Hooks`
does not implement `resolveSync` other loaders cannot use
`import.meta.resolve`; `allowImportMetaResolve` is a way of checking
for that case instead of invoking `resolveSync` and erroring.

Fixes #48515
Closes #48439

PR-URL: #48559
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Notable changes:

esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999

PR-URL: #49185

Notable changes:

esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999

PR-URL: #49185

Notable changes:

esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999

PR-URL: #49185

Notable changes:

doc:
  * add new TSC members (Michael Dawson) #48841
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999

PR-URL: #49185

Notable changes:

doc:
  * add new TSC members (Michael Dawson) #48841
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999

PR-URL: #49185

Notable changes:

doc:
  * add new TSC members (Michael Dawson) #48841
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999

PR-URL: #49185

Notable changes:

doc:
  * add new TSC members (Michael Dawson) #48841
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999

PR-URL: #49185

Notable changes:

doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890

PR-URL: #49185

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890
  * initialize cppgc (Daryl Haresign and Joyee Cheung) #48660 and #45704
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890
  * initialize cppgc (Daryl Haresign and Joyee Cheung) #48660 and #45704
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890
  * initialize cppgc (Daryl Haresign and Joyee Cheung) #48660 and #45704
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890
  * initialize cppgc (Daryl Haresign and Joyee Cheung) #48660 and #45704
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890
  * initialize cppgc (Daryl Haresign and Joyee Cheung) #48660 and #45704
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890
  * initialize cppgc (Daryl Haresign and Joyee Cheung) #48660 and #45704
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975

PR-URL: #49185

Notable changes:

deps:
  * V8: cherry-pick 93275031284c (Joyee Cheung) #48660
doc:
  * add new TSC members (Michael Dawson) #48841
  * add rluvaton to collaborators (Raz Luvaton) #49215
esm:
  * unflag import.meta.resolve (Guy Bedford) #49028
  * add `initialize` hook, integrate with `register` (Izaak Schroeder) #48842
  * unflag `Module.register` and allow nested loader `import()` (Izaak Schroeder) #48559
inspector:
  * (SEMVER-MINOR) open add `SymbolDispose` (Chemi Atlow) #48765
module:
  * implement `register` utility (João Lenon) #46826
  * make CJS load from ESM loader (Antoine du Hamel) #47999
src:
  * add built-in `.env` file support (Yagiz Nizipli) #48890
  * initialize cppgc (Daryl Haresign and Joyee Cheung) #48660 and #45704
test_runner:
  * (SEMVER-MINOR) expose location of tests (Colin Ihrig) #48975

PR-URL: #49185