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process: move setup of process warnings into node.js #25263

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process: move setup of process warnings into node.js #25263

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10 changes: 9 additions & 1 deletion lib/internal/bootstrap/node.js
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Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,15 @@ function startup() {
wrapped.hasUncaughtExceptionCaptureCallback;
}

NativeModule.require('internal/process/warning').setup();
const {
onWarning,
emitWarning
} = NativeModule.require('internal/process/warning');
if (!process.noProcessWarnings && process.env.NODE_NO_WARNINGS !== '1') {
process.on('warning', onWarning);
}
process.emitWarning = emitWarning;

const {
nextTick,
runNextTicks
Expand Down
15 changes: 7 additions & 8 deletions lib/internal/process/warning.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,6 @@
const prefix = `(${process.release.name}:${process.pid}) `;
const { ERR_INVALID_ARG_TYPE } = require('internal/errors').codes;

exports.setup = setupProcessWarnings;

// Lazily loaded
let fs;
let fd;
Expand Down Expand Up @@ -51,9 +49,7 @@ function doEmitWarning(warning) {
return () => process.emit('warning', warning);
}

function setupProcessWarnings() {
if (!process.noProcessWarnings && process.env.NODE_NO_WARNINGS !== '1') {
process.on('warning', (warning) => {
function onWarning(warning) {
if (!(warning instanceof Error)) return;
const isDeprecation = warning.name === 'DeprecationWarning';
if (isDeprecation && process.noDeprecation) return;
Expand All @@ -78,13 +74,12 @@ function setupProcessWarnings() {
return writeToFile(msg);
}
writeOut(msg);
});
}

// process.emitWarning(error)
// process.emitWarning(str[, type[, code]][, ctor])
// process.emitWarning(str[, options])
process.emitWarning = (warning, type, code, ctor, now) => {
function emitWarning(warning, type, code, ctor, now) {
let detail;
if (type !== null && typeof type === 'object' && !Array.isArray(type)) {
ctor = type.ctor;
Expand Down Expand Up @@ -129,5 +124,9 @@ function setupProcessWarnings() {
}
if (now) process.emit('warning', warning);
else process.nextTick(doEmitWarning(warning));
};
}

module.exports = {
onWarning,
emitWarning
};