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2b24ffae22
This patch adds an internal function that prints to stdout or stderr by directly writing to the known file descriptor, and uses it internally in common cases to avoid the overhead of the console implementation. PR-URL: https://github.com/nodejs/node/pull/27320 Reviewed-By: James M Snell <jasnell@gmail.com>
56 lines
1.3 KiB
JavaScript
56 lines
1.3 KiB
JavaScript
'use strict';
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// Create the REPL if `-i` or `--interactive` is passed, or if
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// the main module is not specified and stdin is a TTY.
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const {
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prepareMainThreadExecution
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} = require('internal/bootstrap/pre_execution');
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const {
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evalScript
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} = require('internal/process/execution');
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const { print, kStderr, kStdout } = require('internal/util/print');
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const { getOptionValue } = require('internal/options');
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prepareMainThreadExecution();
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markBootstrapComplete();
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// --input-type flag not supported in REPL
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if (getOptionValue('--input-type')) {
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print(kStderr, 'Cannot specify --input-type for REPL');
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process.exit(1);
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}
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print(kStdout, `Welcome to Node.js ${process.version}.\n` +
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'Type ".help" for more information.');
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const cliRepl = require('internal/repl');
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cliRepl.createInternalRepl(process.env, (err, repl) => {
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if (err) {
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throw err;
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}
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repl.on('exit', () => {
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if (repl._flushing) {
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repl.pause();
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return repl.once('flushHistory', () => {
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process.exit();
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});
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}
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process.exit();
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});
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});
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// If user passed '-e' or '--eval' along with `-i` or `--interactive`,
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// evaluate the code in the current context.
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const source = getOptionValue('--eval');
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if (source != null) {
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evalScript('[eval]',
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source,
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getOptionValue('--inspect-brk'),
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getOptionValue('--print'));
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}
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