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esm: fix loader hooks doc annotations
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Prior to this commit, the type annotations on the ESM loader hooks
were invalid. This has been corrected and is ensured to be compatible
with both the TypeScript and Closure type systems.

Notes:
    https://www.typescriptlang.org/play/index.html?useJavaScript=true#code/PQKhCgAIUgBAHAhgJ0QW0gbwM4BdkCWAdgOYC+kArsgDZQwIrpYDyARgFYCmAxrhTwD2RXFwAeuSAAoe1ZFxE0AnpC5p4uJQEp6cJKgyYAYpSJ8CwigBMuAM0SUauAOJdcRwcjSJcu2PNxqImwsAAVkQTQCbC4AHkxIW09vXAAuSDxCUkgyAD4yemBwcXhPSURsJTNE03NhSBI3Dy8fKWoaABpIIRFxXC6be0cXJuSfLSwoSAJbaQBZHwALADpUIitIqQncyAAGZYBWCYTgYEgAZUiubuErAlwLImWpyEhTyGaMq8hPSEQaGiQACqACUADLYAaCL5oa6yPCRSA0QQkAg8RK-GyiLzEYgkDEtXDPV6vd4AQRoAHdEEoQgEgn8iD9OLxJIJZrhFtckl4sDyUulYpk8fkupSufJIJyuC83md+T5piFhNd2VKuRl8HiQsR1ddcIg2DRrobBAA3LjEkn05BMzCy14KtKQADkaEEVkcXBdHVlZAA3FMCqSzgAROxcZBS6EAOQ9lo4IR5fwBP2lUdBEKtNqZgwcTlc7jGuDatC6PVEEgGdnzIyLhK0gbIQA
    https://closure-compiler.appspot.com/home#code%3D%252F%252F%2520%253D%253DClosureCompiler%253D%253D%250A%252F%252F%2520%2540compilation_level%2520ADVANCED_OPTIMIZATIONS%250A%252F%252F%2520%2540warning_level%2520VERBOSE%250A%252F%252F%2520%2540jscomp_error%2520strictCheckTypes%250A%252F%252F%2520%2540language_out%2520ECMASCRIPT_NEXT%250A%252F%252F%2520%2540checks_only%250A%252F%252F%2520%253D%253D%252FClosureCompiler%253D%253D%250A%250A%252F**%250A%2520*%2520%2540param%2520%257Bstring%257D%2520url%250A%2520*%2520%2540param%2520%257BObject%257D%2520context%2520(currently%2520empty)%250A%2520*%2520%2540param%2520%257BFunction%257D%2520defaultGetFormat%250A%2520*%2520%2540returns%2520%257BPromise%253C%257B%2520format%253A%2520string%2520%257D%253E%257D%250A%2520*%252F%250Aexport%2520async%2520function%2520getFormat(url%252C%2520context%252C%2520defaultGetFormat)%2520%257B%250A%2520%2520if%2520(Math.random()%2520%253E%25200.5)%2520%257B%2520%252F%252F%2520Some%2520condition.%250A%2520%2520%2520%2520%252F%252F%2520For%2520some%2520or%2520all%2520URLs%252C%2520do%2520some%2520custom%2520logic%2520for%2520determining%2520format.%250A%2520%2520%2520%2520%252F%252F%2520Always%2520return%2520an%2520object%2520of%2520the%2520form%2520%257Bformat%253A%2520%253Cstring%253E%257D%252C%2520where%2520the%250A%2520%2520%2520%2520%252F%252F%2520format%2520is%2520one%2520of%2520the%2520strings%2520in%2520the%2520table%2520above.%250A%2520%2520%2520%2520return%2520%257B%250A%2520%2520%2520%2520%2520%2520format%253A%2520'module'%252C%250A%2520%2520%2520%2520%257D%253B%250A%2520%2520%257D%250A%2520%2520%252F%252F%2520Defer%2520to%2520Node.js%2520for%2520all%2520other%2520URLs.%250A%2520%2520return%2520defaultGetFormat(url%252C%2520context%252C%2520defaultGetFormat)%253B%250A%257D

    https://www.typescriptlang.org/play/?useJavaScript=true#code/PQKhCgAIUgBAHAhgJ0QW0gbwM4BdkCWAdgOYC+k28ApgMYEBmB1yUMCK6WmbkfSyakVwBVAEoAZAFyQAhAAo8hUpAA+kAK5EAJtSZFq2gJQAaXn1oB7HQVwFr2GQoCCyVAE8APEuIkAfKa8ZBRWwtQAHri8HKgYmABiWrR21hS6DIgaADa4YtTYllkAbtTRgrgayETYWAoACsiWaATY1J6YmshZMj4qZAFkbMDgEfCWyLiQiNjuRLSQDEkpRJCCBcXUijT0TCwmkKG4Ebj76Zk5eeslRlhQBw6THQJCopKQALyQRNlZkBSfh2OAG47oxIPIALKIXAACwAdKgdE15Dc-JAAAxwgCsNw6wGAkAAyk1qPcbMs4Xc+PjIPFxpQSZB6Ygsr8qHRGMxkNhTpYGWhSbQNHgmpAspYSAR5gx6WtCkVfJS+NSCc4sgB3RDuGrlSorRArSwAIwAVnRJpYGJBYaSZcg4pVupBvPhfH4yErlbqqrdlcrHTJnsJxBJIAB+Kl+r7UdWQENbDm7ZD7IOvCRGOEwwRWqSRv0GWPx9k7LkZrN6Mx+sggviDPhgyHQ+GI7TIm6eDHY3GQGnOIiWG3IMnaWz2IielWQADqMKEBxZWV8kAABmdsrl8vLqMv9japsgSBoBcIarQDZAjaS0JYR7ttHDIABJFawlqRmln1qQWwAchqiG0EcVANAdZyHIoWQ0W16TQaFaBhJdQhHZYWUgUZxlwbAJ1WagKh9NcLk3DYExLPZfSjOFKMBSJKyjJDRwcGQAG1KLhajcDY6xkLHHlIB-EDBwAWno5YfwAXVo2sjBrP47hpAARPQWGtPkADkb2oOETRqO0plZJlB0obZORYLC7m9FYCI3K5NmLEzkzJI4aMgKzLi3aTwDIIA
    https://closure-compiler.appspot.com/home#code%3D%252F%252F%2520%253D%253DClosureCompiler%253D%253D%250A%252F%252F%2520%2540compilation_level%2520ADVANCED_OPTIMIZATIONS%250A%252F%252F%2520%2540warning_level%2520VERBOSE%250A%252F%252F%2520%2540jscomp_error%2520strictCheckTypes%250A%252F%252F%2520%2540language_out%2520ECMASCRIPT_NEXT%250A%252F%252F%2520%2540checks_only%250A%252F%252F%2520%253D%253D%252FClosureCompiler%253D%253D%250A%250A%252F**%250A%2520*%2520%2540param%2520%257Bstring%257D%2520specifier%250A%2520*%2520%2540param%2520%257B%257B%250A%2520*%2520%2520%2520parentURL%253A%2520!(string%2520%257C%2520undefined)%252C%250A%2520*%2520%2520%2520conditions%253A%2520!(Array%253Cstring%253E)%252C%250A%2520*%2520%257D%257D%2520context%250A%2520*%2520%2540param%2520%257BFunction%257D%2520defaultResolve%250A%2520*%2520%2540returns%2520%257B!(Promise%253C%257B%2520url%253A%2520string%2520%257D%253E)%257D%250A%2520*%252F%250Aexport%2520async%2520function%2520resolve(specifier%252C%2520context%252C%2520defaultResolve)%2520%257B%250A%2520%2520const%2520%257B%2520parentURL%2520%253D%2520null%2520%257D%2520%253D%2520context%253B%250A%2520%2520if%2520(Math.random()%2520%253E%25200.5)%2520%257B%2520%252F%252F%2520Some%2520condition.%250A%2520%2520%2520%2520%252F%252F%2520For%2520some%2520or%2520all%2520specifiers%252C%2520do%2520some%2520custom%2520logic%2520for%2520resolving.%250A%2520%2520%2520%2520%252F%252F%2520Always%2520return%2520an%2520object%2520of%2520the%2520form%2520%257Burl%253A%2520%253Cstring%253E%257D.%250A%2520%2520%2520%2520return%2520%257B%250A%2520%2520%2520%2520%2520%2520url%253A%2520parentURL%2520%253F%250A%2520%2520%2520%2520%2520%2520%2520%2520new%2520URL(specifier%252C%2520parentURL).href%2520%253A%250A%2520%2520%2520%2520%2520%2520%2520%2520new%2520URL(specifier).href%252C%250A%2520%2520%2520%2520%257D%253B%250A%2520%2520%257D%250A%2520%2520if%2520(Math.random()%2520%253C%25200.5)%2520%257B%2520%252F%252F%2520Another%2520condition.%250A%2520%2520%2520%2520%252F%252F%2520When%2520calling%2520%2560defaultResolve%2560%252C%2520the%2520arguments%2520can%2520be%2520modified.%2520In%2520this%250A%2520%2520%2520%2520%252F%252F%2520case%2520it's%2520adding%2520another%2520value%2520for%2520matching%2520conditional%2520exports.%250A%2520%2520%2520%2520return%2520defaultResolve(specifier%252C%2520%257B%250A%2520%2520%2520%2520%2520%2520...context%252C%250A%2520%2520%2520%2520%2520%2520conditions%253A%2520%255B...context.conditions%252C%2520'another-condition'%255D%252C%250A%2520%2520%2520%2520%257D)%253B%250A%2520%2520%257D%250A%2520%2520%252F%252F%2520Defer%2520to%2520Node.js%2520for%2520all%2520other%2520specifiers.%250A%2520%2520return%2520defaultResolve(specifier%252C%2520context%252C%2520defaultResolve)%253B%250A%257D

    https://www.typescriptlang.org/play/?useJavaScript=true#code/PQKhCgAIUgBAHAhgJ0QW0gbwM4BdkCWAdgOYC+kArsgDZQwIrpaaQBmA9smorgFyQ8hUpDIUAxhyK4ApgA9c9OElQZMAMUpFxuAlIoATGW0SUauAOIzcAZQ7VxMpbGTXqRbFgAKyDmgLYMgA8rNj2yI4CAIQAFDYAFigyBgCCyKgAngBClGxsMsiQAD6C+MQkxZAAqsS4ABxpmQCUogB8ZPTA4PLwXLiQiNgZ2uxaOnpEkCTWdg4yMdQ0ADSQktLyuCtGJmaWM+GOLZhQq1J4WOxcPP0UALyn6woA3CcEbJAxALK88QB0qEQDH4Yi1WpAAAy-ACsR0gwGAkDsaBkDwMBF0Ul+J0gcIR6i4gj8KIJiBoNGqACUADLYLYcQnI1aUPB+SA0DgkAjiS6FVxlGQAN3KkFw8RRYTmWJxOPhkBSNAA7ogMp4+e4BpMOAAjABWMh0kA471FKM43CwEoiMgEQSE5SKWty+WQ7Sl0rVyEmx2l0stkUgAHJfsGA0tsaIXjiOjKEQARYwFEX0gByHCMvx1njNAzJhpNhSq1Owbo9k22pnMVlsB3mixWa1kCi2xgre2rcyaLzIQA
    https://closure-compiler.appspot.com/home#code%3D%252F%252F%2520%253D%253DClosureCompiler%253D%253D%250A%252F%252F%2520%2540compilation_level%2520ADVANCED_OPTIMIZATIONS%250A%252F%252F%2520%2540warning_level%2520VERBOSE%250A%252F%252F%2520%2540jscomp_error%2520strictCheckTypes%250A%252F%252F%2520%2540language_out%2520ECMASCRIPT_NEXT%250A%252F%252F%2520%2540checks_only%250A%252F%252F%2520%253D%253D%252FClosureCompiler%253D%253D%250A%250A%252F**%250A%2520*%2520%2540param%2520%257Bstring%257D%2520url%250A%2520*%2520%2540param%2520%257B%257B%2520format%253A%2520string%2520%257D%257D%2520context%250A%2520*%2520%2540param%2520%257BFunction%257D%2520defaultGetSource%250A%2520*%2520%2540returns%2520%257BPromise%253C%257B%2520source%253A%2520!(SharedArrayBuffer%2520%257C%2520string%2520%257C%2520Uint8Array)%2520%257D%253E%257D%250A%2520*%252F%250Aexport%2520async%2520function%2520getSource(url%252C%2520context%252C%2520defaultGetSource)%2520%257B%250A%2520%2520const%2520%257B%2520format%2520%257D%2520%253D%2520context%253B%250A%2520%2520if%2520(Math.random()%2520%253E%25200.5)%2520%257B%2520%252F%252F%2520Some%2520condition.%250A%2520%2520%2520%2520%252F%252F%2520For%2520some%2520or%2520all%2520URLs%252C%2520do%2520some%2520custom%2520logic%2520for%2520retrieving%2520the%2520source.%250A%2520%2520%2520%2520%252F%252F%2520Always%2520return%2520an%2520object%2520of%2520the%2520form%2520%257Bsource%253A%2520%253Cstring%257Cbuffer%253E%257D.%250A%2520%2520%2520%2520return%2520%257B%250A%2520%2520%2520%2520%2520%2520source%253A%2520'...'%252C%250A%2520%2520%2520%2520%257D%253B%250A%2520%2520%257D%250A%2520%2520%252F%252F%2520Defer%2520to%2520Node.js%2520for%2520all%2520other%2520URLs.%250A%2520%2520return%2520defaultGetSource(url%252C%2520context%252C%2520defaultGetSource)%253B%250A%257D

    https://www.typescriptlang.org/play/?useJavaScript=true#code/PQKhCgAIUgBAHAhgJ0QW0gbwIQAoDKAFigKYAmAgsqgJ4BCArgGZMnKQA+kAzgC7IBLAHYBzTpACqw3gA4qtAJQBfHgHsGyAMYkoMBCnRZMuyKY0AbAFw9+wkQBoTppquRpEva30GjH0SEoqmqpCvCQAHrwm+qgYmABiDEKavAIhKmQkTIgM5rwAKqhC3C5u+OpaOv6wyCS8GsVYAArIqmgC3CQAPJhqGtrWeESklNSI9Mys7FzeduJSoXJjNAoBAHxKusDgEfCuvJCI3DTJkExJKWlCkPyIxaVo5f0kuNwV2vaQwaERvJ+Z2VyBSKJVcj3eJFWxlM3z4WEgFk+Dw8AUgAF4viEwpEANxQSACJiQXAAWQ8hAAdEUyG1cKs1pAAAwUgCsUMgwGAkHKaBImKEZAEqRCFPxpk5kHirjUvMg0sQ5nMkgASgAZbj-VQyvmaBh8NqQcyqEQCTRnaVoVSCpg0Oa8Qh8t7PUWmcVcijmADu424kFq9WQ1zucoARgArEgpOVE+18h5YJ2VaxdWaiDghyZsDYu13+hpYMWuxMDSAAcgpFdLfldSjxpk2bsgABEsmwblqAHJWkgUsO+0qHRVy2PsYskbg5vOByAAnJ5Qp3UFlCGvCGfb7Yv4zrJz4GLh5PSoKPFKIA
    https://closure-compiler.appspot.com/home#code%3D%252F%252F%2520%253D%253DClosureCompiler%253D%253D%250A%252F%252F%2520%2540compilation_level%2520ADVANCED_OPTIMIZATIONS%250A%252F%252F%2520%2540warning_level%2520VERBOSE%250A%252F%252F%2520%2540jscomp_error%2520strictCheckTypes%250A%252F%252F%2520%2540language_out%2520ECMASCRIPT_NEXT%250A%252F%252F%2520%2540checks_only%250A%252F%252F%2520%253D%253D%252FClosureCompiler%253D%253D%250A%250A%252F**%250A%2520*%2520%2540param%2520%257B!(SharedArrayBuffer%2520%257C%2520string%2520%257C%2520Uint8Array)%257D%2520source%250A%2520*%2520%2540param%2520%257B%257B%250A%2520*%2520%2520%2520url%253A%2520string%252C%250A%2520*%2520%2520%2520format%253A%2520string%252C%250A%2520*%2520%257D%257D%2520context%250A%2520*%2520%2540param%2520%257BFunction%257D%2520defaultTransformSource%250A%2520*%2520%2540returns%2520%257BPromise%253C%257B%2520source%253A%2520!(SharedArrayBuffer%2520%257C%2520string%2520%257C%2520Uint8Array)%2520%257D%253E%257D%250A%2520*%252F%250Aexport%2520async%2520function%2520transformSource(source%252C%2520context%252C%2520defaultTransformSource)%2520%257B%250A%2520%2520const%2520%257B%2520url%252C%2520format%2520%257D%2520%253D%2520context%253B%250A%2520%2520if%2520(Math.random()%2520%253E%25200.5)%2520%257B%2520%252F%252F%2520Some%2520condition.%250A%2520%2520%2520%2520%252F%252F%2520For%2520some%2520or%2520all%2520URLs%252C%2520do%2520some%2520custom%2520logic%2520for%2520modifying%2520the%2520source.%250A%2520%2520%2520%2520%252F%252F%2520Always%2520return%2520an%2520object%2520of%2520the%2520form%2520%257Bsource%253A%2520%253Cstring%257Cbuffer%253E%257D.%250A%2520%2520%2520%2520return%2520%257B%250A%2520%2520%2520%2520%2520%2520source%253A%2520'...'%252C%250A%2520%2520%2520%2520%257D%253B%250A%2520%2520%257D%250A%2520%2520%252F%252F%2520Defer%2520to%2520Node.js%2520for%2520all%2520other%2520sources.%250A%2520%2520return%2520defaultTransformSource(source%252C%2520context%252C%2520defaultTransformSource)%253B%250A%257D

PR-URL: #33563
Co-authored-by: Geoffrey Booth <[email protected]>
Reviewed-By: Geoffrey Booth <[email protected]>
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@GeoffreyBooth
Derek Lewis and GeoffreyBooth committed Jun 14, 2020
1 parent 85fbf71 commit c17d2f9
Showing 1 changed file with 34 additions and 39 deletions.
73 changes: 34 additions & 39 deletions doc/api/esm.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1160,25 +1160,26 @@ condition list **must** be passed through to the `defaultResolve` function.
```js
/**
* @param {string} specifier
* @param {object} context
* @param {string} context.parentURL
* @param {string[]} context.conditions
* @param {function} defaultResolve
* @returns {object} response
* @returns {string} response.url
* @param {{
* parentURL: !(string | undefined),
* conditions: !(Array<string>),
* }} context
* @param {Function} defaultResolve
* @returns {!(Promise<{ url: string }>)}
*/
export async function resolve(specifier, context, defaultResolve) {
const { parentURL = null } = context;
if (someCondition) {
if (Math.random() > 0.5) { // Some condition.
// For some or all specifiers, do some custom logic for resolving.
// Always return an object of the form {url: <string>}
// Always return an object of the form {url: <string>}.
return {
url: (parentURL) ?
new URL(specifier, parentURL).href : new URL(specifier).href
url: parentURL ?
new URL(specifier, parentURL).href :
new URL(specifier).href,
};
}
if (anotherCondition) {
// When calling the defaultResolve, the arguments can be modified. In this
if (Math.random() < 0.5) { // Another condition.
// When calling `defaultResolve`, the arguments can be modified. In this
// case it's adding another value for matching conditional exports.
return defaultResolve(specifier, {
...context,
Expand Down Expand Up @@ -1220,18 +1221,17 @@ not a string, it will be converted to a string using [`util.TextDecoder`][].
```js
/**
* @param {string} url
* @param {object} context (currently empty)
* @param {function} defaultGetFormat
* @returns {object} response
* @returns {string} response.format
* @param {Object} context (currently empty)
* @param {Function} defaultGetFormat
* @returns {Promise<{ format: string }>}
*/
export async function getFormat(url, context, defaultGetFormat) {
if (someCondition) {
if (Math.random() > 0.5) { // Some condition.
// For some or all URLs, do some custom logic for determining format.
// Always return an object of the form {format: <string>}, where the
// format is one of the strings in the table above.
return {
format: 'module'
format: 'module',
};
}
// Defer to Node.js for all other URLs.
Expand All @@ -1251,19 +1251,17 @@ potentially avoid reading files from disk.
```js
/**
* @param {string} url
* @param {object} context
* @param {string} context.format
* @param {function} defaultGetSource
* @returns {object} response
* @returns {string|buffer} response.source
* @param {{ format: string }} context
* @param {Function} defaultGetSource
* @returns {Promise<{ source: !(SharedArrayBuffer | string | Uint8Array) }>}
*/
export async function getSource(url, context, defaultGetSource) {
const { format } = context;
if (someCondition) {
if (Math.random() > 0.5) { // Some condition.
// For some or all URLs, do some custom logic for retrieving the source.
// Always return an object of the form {source: <string|buffer>}.
return {
source: '...'
source: '...',
};
}
// Defer to Node.js for all other URLs.
Expand All @@ -1286,28 +1284,25 @@ unknown-to-Node.js file extensions. See the [transpiler loader example][] below.
```js
/**
* @param {string|buffer} source
* @param {object} context
* @param {string} context.url
* @param {string} context.format
* @param {function} defaultTransformSource
* @returns {object} response
* @returns {string|buffer} response.source
* @param {!(SharedArrayBuffer | string | Uint8Array)} source
* @param {{
* url: string,
* format: string,
* }} context
* @param {Function} defaultTransformSource
* @returns {Promise<{ source: !(SharedArrayBuffer | string | Uint8Array) }>}
*/
export async function transformSource(source,
context,
defaultTransformSource) {
export async function transformSource(source, context, defaultTransformSource) {
const { url, format } = context;
if (someCondition) {
if (Math.random() > 0.5) { // Some condition.
// For some or all URLs, do some custom logic for modifying the source.
// Always return an object of the form {source: <string|buffer>}.
return {
source: '...'
source: '...',
};
}
// Defer to Node.js for all other sources.
return defaultTransformSource(
source, context, defaultTransformSource);
return defaultTransformSource(source, context, defaultTransformSource);
}
```
Expand Down

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