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Node-resolve: refactor handling builtins, do not log warning if no local version #637

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merged 7 commits into from
Nov 30, 2020
Merged

Node-resolve: refactor handling builtins, do not log warning if no local version #637

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dc2deca
refactor handling builtins
tjenkinson Nov 8, 2020
74f76ec
Merge branch 'master' of https://github.com/rollup/plugins into node-…
tjenkinson Nov 8, 2020
b19fb3e
remove duplicate code block
tjenkinson Nov 8, 2020
15302c6
do not warn when using a builtin when no local version
tjenkinson Nov 8, 2020
44d0625
add not about warnings to readme
tjenkinson Nov 8, 2020
fbf8807
Merge branch 'master' into node-resolve-refactor-builtins
tjenkinson Nov 28, 2020
e818131
Merge branch 'master' into node-resolve-refactor-builtins
shellscape Nov 30, 2020
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12 changes: 11 additions & 1 deletion packages/node-resolve/src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -163,6 +163,16 @@ export function nodeResolve(opts = {}) {

const importeeIsBuiltin = builtins.has(importee);

if (importeeIsBuiltin) {
// The `resolve` library will not resolve packages with the same
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Wouldn't the logic here become superfluous by using the new option in the updated resolve package?

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Yep! Am looking into that in a different branch though.

// name as a node built-in module. If we're resolving something
// that's a builtin, and we don't prefer to find built-ins, we
// first try to look up a local module with that name. If we don't
// find anything, we resolve the builtin which just returns back
// the built-in's name.
importSpecifierList.push(`${importee}/`);
}

// TypeScript files may import '.js' to refer to either '.ts' or '.tsx'
if (importer && importee.endsWith('.js')) {
for (const ext of ['.ts', '.tsx']) {
Expand Down Expand Up @@ -229,7 +239,7 @@ export function nodeResolve(opts = {}) {

if (hasPackageEntry) {
if (importeeIsBuiltin && preferBuiltins) {
if (!isPreferBuiltinsSet && resolvedWithoutBuiltins) {
if (!isPreferBuiltinsSet && resolvedWithoutBuiltins && resolved !== importee) {
this.warn(
`preferring built-in module '${importee}' over local alternative at '${resolvedWithoutBuiltins.location}', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning`
);
Expand Down