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add include/exclude polyfills functionality #21

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add include/exclude polyfills functionality #21

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14 changes: 9 additions & 5 deletions node-modules-polyfill/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -18,13 +18,15 @@ function removeEndingSlash(importee) {

export interface NodePolyfillsOptions {
name?: string
namespace?: string
namespace?: string,
include?: string[],
exclude?: string[]
}

export function NodeModulesPolyfillPlugin(
options: NodePolyfillsOptions = {},
): Plugin {
const { namespace = NAMESPACE, name = NAME } = options
const { namespace = NAMESPACE, name = NAME, include = [], exclude = [] } = options
if (namespace.endsWith('commonjs')) {
throw new Error(`namespace ${namespace} must not end with commonjs`)
}
Expand Down Expand Up @@ -80,11 +82,13 @@ export function NodeModulesPolyfillPlugin(
}
}
}
onLoad({ filter: /.*/, namespace }, loader)
onLoad({ filter: /.*/, namespace: commonjsNamespace }, loader)
const filter = new RegExp(
polyfilledBuiltinsNames.map(escapeStringRegexp).join('|'), // TODO builtins could end with slash, keep in mind in regex
(polyfilledBuiltinsNames.map(escapeStringRegexp) as string[])
.filter((value: string) => include.length ? include.includes(value) : exclude.length ? !exclude.includes(value) : true)
.join('|'), // TODO builtins could end with slash, keep in mind in regex
)
onLoad({ filter, namespace }, loader)
onLoad({ filter, namespace: commonjsNamespace }, loader)
async function resolver(args: OnResolveArgs) {
const ignoreRequire = args.namespace === commonjsNamespace

Expand Down