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>

1 files changed, 113 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/levn/lib/parse-string.js b/tools/node_modules/eslint/node_modules/levn/lib/parse-string.js
new file mode 100644
index 0000000000..d573975fc2
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/levn/lib/parse-string.js
@@ -0,0 +1,113 @@
+// Generated by LiveScript 1.4.0
+(function(){
+  var reject, special, tokenRegex;
+  reject = require('prelude-ls').reject;
+  function consumeOp(tokens, op){
+    if (tokens[0] === op) {
+      return tokens.shift();
+    } else {
+      throw new Error("Expected '" + op + "', but got '" + tokens[0] + "' instead in " + JSON.stringify(tokens) + ".");
+    }
+  }
+  function maybeConsumeOp(tokens, op){
+    if (tokens[0] === op) {
+      return tokens.shift();
+    }
+  }
+  function consumeList(tokens, arg$, hasDelimiters){
+    var open, close, result, untilTest;
+    open = arg$[0], close = arg$[1];
+    if (hasDelimiters) {
+      consumeOp(tokens, open);
+    }
+    result = [];
+    untilTest = "," + (hasDelimiters ? close : '');
+    while (tokens.length && (hasDelimiters && tokens[0] !== close)) {
+      result.push(consumeElement(tokens, untilTest));
+      maybeConsumeOp(tokens, ',');
+    }
+    if (hasDelimiters) {
+      consumeOp(tokens, close);
+    }
+    return result;
+  }
+  function consumeArray(tokens, hasDelimiters){
+    return consumeList(tokens, ['[', ']'], hasDelimiters);
+  }
+  function consumeTuple(tokens, hasDelimiters){
+    return consumeList(tokens, ['(', ')'], hasDelimiters);
+  }
+  function consumeFields(tokens, hasDelimiters){
+    var result, untilTest, key;
+    if (hasDelimiters) {
+      consumeOp(tokens, '{');
+    }
+    result = {};
+    untilTest = "," + (hasDelimiters ? '}' : '');
+    while (tokens.length && (!hasDelimiters || tokens[0] !== '}')) {
+      key = consumeValue(tokens, ':');
+      consumeOp(tokens, ':');
+      result[key] = consumeElement(tokens, untilTest);
+      maybeConsumeOp(tokens, ',');
+    }
+    if (hasDelimiters) {
+      consumeOp(tokens, '}');
+    }
+    return result;
+  }
+  function consumeValue(tokens, untilTest){
+    var out;
+    untilTest == null && (untilTest = '');
+    out = '';
+    while (tokens.length && -1 === untilTest.indexOf(tokens[0])) {
+      out += tokens.shift();
+    }
+    return out;
+  }
+  function consumeElement(tokens, untilTest){
+    switch (tokens[0]) {
+    case '[':
+      return consumeArray(tokens, true);
+    case '(':
+      return consumeTuple(tokens, true);
+    case '{':
+      return consumeFields(tokens, true);
+    default:
+      return consumeValue(tokens, untilTest);
+    }
+  }
+  function consumeTopLevel(tokens, types, options){
+    var ref$, type, structure, origTokens, result, finalResult, x$, y$;
+    ref$ = types[0], type = ref$.type, structure = ref$.structure;
+    origTokens = tokens.concat();
+    if (!options.explicit && types.length === 1 && ((!type && structure) || (type === 'Array' || type === 'Object'))) {
+      result = structure === 'array' || type === 'Array'
+        ? consumeArray(tokens, tokens[0] === '[')
+        : structure === 'tuple'
+          ? consumeTuple(tokens, tokens[0] === '(')
+          : consumeFields(tokens, tokens[0] === '{');
+      finalResult = tokens.length ? consumeElement(structure === 'array' || type === 'Array'
+        ? (x$ = origTokens, x$.unshift('['), x$.push(']'), x$)
+        : (y$ = origTokens, y$.unshift('('), y$.push(')'), y$)) : result;
+    } else {
+      finalResult = consumeElement(tokens);
+    }
+    return finalResult;
+  }
+  special = /\[\]\(\)}{:,/.source;
+  tokenRegex = RegExp('("(?:\\\\"|[^"])*")|(\'(?:\\\\\'|[^\'])*\')|(/(?:\\\\/|[^/])*/[a-zA-Z]*)|(#.*#)|([' + special + '])|([^\\s' + special + '](?:\\s*[^\\s' + special + ']+)*)|\\s*');
+  module.exports = function(types, string, options){
+    var tokens, node;
+    options == null && (options = {});
+    if (!options.explicit && types.length === 1 && types[0].type === 'String') {
+      return "'" + string.replace(/\\'/g, "\\\\'") + "'";
+    }
+    tokens = reject(not$, string.split(tokenRegex));
+    node = consumeTopLevel(tokens, types, options);
+    if (!node) {
+      throw new Error("Error parsing '" + string + "'.");
+    }
+    return node;
+  };
+  function not$(x){ return !x; }
+}).call(this);