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util: convert inspect.styles and inspect.colors to prototype-less objects

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Use a prototype-less object for inspect.styles and inspect.colors to allow
modification of Object.prototype in the REPL.

Fixes: https://github.com/nodejs/node/issues/11614
PR-URL: https://github.com/nodejs/node/pull/11624
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
This commit is contained in:
Nemanja Stojanovic 2017-02-28 13:58:56 -05:00 committed by James M Snell
parent fd17e8b8d2
commit aab0d202f8
1 changed files with 4 additions and 4 deletions
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8
lib/util.js
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@ -166,7 +166,7 @@ Object.defineProperty(inspect, 'defaultOptions', {
});
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
inspect.colors = Object.assign(Object.create(null), {
'bold': [1, 22],
'italic': [3, 23],
'underline': [4, 24],
@ -180,10 +180,10 @@ inspect.colors = {
'magenta': [35, 39],
'red': [31, 39],
'yellow': [33, 39]
};
});
// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
inspect.styles = Object.assign(Object.create(null), {
'special': 'cyan',
'number': 'yellow',
'boolean': 'yellow',
@ -194,7 +194,7 @@ inspect.styles = {
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red'
};
});
const customInspectSymbol = internalUtil.customInspectSymbol;