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BridgeAR wants to merge 16 commits into from
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modules: significantly improve require performance #25362

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bbfe4a3
benchmark: add new module loading benchmarks
BridgeAR Jan 2, 2019
9c54e43
modules: significantly improve repeated requires
BridgeAR Dec 30, 2018
23eee46
fixup: changed signature on master
BridgeAR Jan 6, 2019
ab5d408
fixup: add line back
BridgeAR Jan 6, 2019
f447111
fixup: typo
BridgeAR Jan 6, 2019
fc0493a
fixup: remove minor breaking change
BridgeAR Jan 6, 2019
e625fb8
fixup: remove obsolete internals check
BridgeAR Jan 6, 2019
c7a9751
fixup: add backwards compat fix
BridgeAR Jan 6, 2019
d8aca04
fixup: address long sentence
BridgeAR Jan 6, 2019
5de8e71
fixup: check internal modules first
BridgeAR Jan 6, 2019
ba9c391
fixup: try using an own object
BridgeAR Jan 6, 2019
34a1785
fixup: smaller code
BridgeAR Jan 6, 2019
554c5ac
fixup: faster internal check
BridgeAR Jan 6, 2019
38afefb
fixup: make sure extension symbols are ignored
BridgeAR Jan 6, 2019
7194285
fixup: keep backwards compatible return value
BridgeAR Jan 6, 2019
59116ac
fixup: improve benchmarks
BridgeAR Jan 6, 2019
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fixup: smaller code
  • Loading branch information
@BridgeAR
BridgeAR committed Jan 6, 2019
commit 34a1785abebab38bb1055ef5abb525a143d57c78
7 changes: 3 additions & 4 deletions lib/internal/modules/cjs/loader.js
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Original file line number Diff line number Diff line change
Expand Up @@ -315,8 +315,7 @@ Module._nodeModulePaths = function(from) {
};

// 'node_modules' character codes reversed
const nmChars = [ 115, 101, 108, 117, 100, 111, 109, 95, 101, 100, 111, 110 ];
const nmLen = nmChars.length;
const nmChars = [115, 101, 108, 117, 100, 111, 109, 95, 101, 100, 111, 110];
if (isWindows) {
// 'from' is the __dirname of the module.
getNodeModulePaths = (from) => {
Expand Down Expand Up @@ -344,7 +343,7 @@ if (isWindows) {
if (code === CHAR_BACKWARD_SLASH ||
code === CHAR_FORWARD_SLASH ||
code === CHAR_COLON) {
if (p !== nmLen)
if (p !== nmChars.length)
paths.push(`${from.slice(0, last)}\\node_modules`);
last = i;
p = 0;
Expand Down Expand Up @@ -379,7 +378,7 @@ if (isWindows) {
for (var i = from.length - 1; i >= 0; --i) {
const code = from.charCodeAt(i);
if (code === CHAR_FORWARD_SLASH) {
if (p !== nmLen)
if (p !== nmChars.length)
paths.push(`${from.slice(0, last)}/node_modules`);
last = i;
p = 0;
Expand Down