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author | Michaël Zasso <targos@protonmail.com> | 2017-12-22 16:53:42 +0100 |
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committer | Michaël Zasso <targos@protonmail.com> | 2018-01-11 09:48:05 +0100 |
commit | 3dc30632755713179f345f4af024bd904c6162d0 (patch) | |
tree | f28c4f6dd6dfc5992edf301449d1a371d229755b /tools/node_modules/eslint/node_modules/esutils/lib/keyword.js | |
parent | a2c7085dd4a8e60d1a47572aca8bb6fcb7a32f88 (diff) | |
download | android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.tar.gz android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.tar.bz2 android-node-v8-3dc30632755713179f345f4af024bd904c6162d0.zip |
tools: move eslint from tools to tools/node_modules
This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.
Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Diffstat (limited to 'tools/node_modules/eslint/node_modules/esutils/lib/keyword.js')
-rw-r--r-- | tools/node_modules/eslint/node_modules/esutils/lib/keyword.js | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/esutils/lib/keyword.js b/tools/node_modules/eslint/node_modules/esutils/lib/keyword.js new file mode 100644 index 0000000000..13c8c6a967 --- /dev/null +++ b/tools/node_modules/eslint/node_modules/esutils/lib/keyword.js @@ -0,0 +1,165 @@ +/* + Copyright (C) 2013 Yusuke Suzuki <utatane.tea@gmail.com> + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +(function () { + 'use strict'; + + var code = require('./code'); + + function isStrictModeReservedWordES6(id) { + switch (id) { + case 'implements': + case 'interface': + case 'package': + case 'private': + case 'protected': + case 'public': + case 'static': + case 'let': + return true; + default: + return false; + } + } + + function isKeywordES5(id, strict) { + // yield should not be treated as keyword under non-strict mode. + if (!strict && id === 'yield') { + return false; + } + return isKeywordES6(id, strict); + } + + function isKeywordES6(id, strict) { + if (strict && isStrictModeReservedWordES6(id)) { + return true; + } + + switch (id.length) { + case 2: + return (id === 'if') || (id === 'in') || (id === 'do'); + case 3: + return (id === 'var') || (id === 'for') || (id === 'new') || (id === 'try'); + case 4: + return (id === 'this') || (id === 'else') || (id === 'case') || + (id === 'void') || (id === 'with') || (id === 'enum'); + case 5: + return (id === 'while') || (id === 'break') || (id === 'catch') || + (id === 'throw') || (id === 'const') || (id === 'yield') || + (id === 'class') || (id === 'super'); + case 6: + return (id === 'return') || (id === 'typeof') || (id === 'delete') || + (id === 'switch') || (id === 'export') || (id === 'import'); + case 7: + return (id === 'default') || (id === 'finally') || (id === 'extends'); + case 8: + return (id === 'function') || (id === 'continue') || (id === 'debugger'); + case 10: + return (id === 'instanceof'); + default: + return false; + } + } + + function isReservedWordES5(id, strict) { + return id === 'null' || id === 'true' || id === 'false' || isKeywordES5(id, strict); + } + + function isReservedWordES6(id, strict) { + return id === 'null' || id === 'true' || id === 'false' || isKeywordES6(id, strict); + } + + function isRestrictedWord(id) { + return id === 'eval' || id === 'arguments'; + } + + function isIdentifierNameES5(id) { + var i, iz, ch; + + if (id.length === 0) { return false; } + + ch = id.charCodeAt(0); + if (!code.isIdentifierStartES5(ch)) { + return false; + } + + for (i = 1, iz = id.length; i < iz; ++i) { + ch = id.charCodeAt(i); + if (!code.isIdentifierPartES5(ch)) { + return false; + } + } + return true; + } + + function decodeUtf16(lead, trail) { + return (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000; + } + + function isIdentifierNameES6(id) { + var i, iz, ch, lowCh, check; + + if (id.length === 0) { return false; } + + check = code.isIdentifierStartES6; + for (i = 0, iz = id.length; i < iz; ++i) { + ch = id.charCodeAt(i); + if (0xD800 <= ch && ch <= 0xDBFF) { + ++i; + if (i >= iz) { return false; } + lowCh = id.charCodeAt(i); + if (!(0xDC00 <= lowCh && lowCh <= 0xDFFF)) { + return false; + } + ch = decodeUtf16(ch, lowCh); + } + if (!check(ch)) { + return false; + } + check = code.isIdentifierPartES6; + } + return true; + } + + function isIdentifierES5(id, strict) { + return isIdentifierNameES5(id) && !isReservedWordES5(id, strict); + } + + function isIdentifierES6(id, strict) { + return isIdentifierNameES6(id) && !isReservedWordES6(id, strict); + } + + module.exports = { + isKeywordES5: isKeywordES5, + isKeywordES6: isKeywordES6, + isReservedWordES5: isReservedWordES5, + isReservedWordES6: isReservedWordES6, + isRestrictedWord: isRestrictedWord, + isIdentifierNameES5: isIdentifierNameES5, + isIdentifierNameES6: isIdentifierNameES6, + isIdentifierES5: isIdentifierES5, + isIdentifierES6: isIdentifierES6 + }; +}()); +/* vim: set sw=4 ts=4 et tw=80 : */ |