forked from zhurui/management
57 lines
1.8 KiB
JavaScript
57 lines
1.8 KiB
JavaScript
|
/**
|
||
|
|
* @author Toru Nagashima <https://github.com/mysticatea>
|
||
|
|
* See LICENSE file in root directory for full license.
|
||
|
|
*/
|
||
|
|
"use strict"
|
||
|
|
|
||
|
|
const {
|
||
|
|
CALL,
|
||
|
|
CONSTRUCT,
|
||
|
|
PatternMatcher,
|
||
|
|
ReferenceTracker,
|
||
|
|
getStringIfConstant,
|
||
|
|
} = require("eslint-utils")
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
/**
|
||
|
|
* Define generator to search pattern.
|
||
|
|
* The iterator generated by the generator returns the start and end index of the match.
|
||
|
|
* @param {RegExp} pattern Base pattern
|
||
|
|
* @returns {function(string):IterableIterator<RegExpExecArray>} generator
|
||
|
|
*/
|
||
|
|
definePatternSearchGenerator(pattern) {
|
||
|
|
const matcher = new PatternMatcher(pattern)
|
||
|
|
return matcher.execAll.bind(matcher)
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check whether a given token is a comma token or not.
|
||
|
|
* @param {Token} token The token to check.
|
||
|
|
* @returns {boolean} `true` if the token is a comma token.
|
||
|
|
*/
|
||
|
|
isCommaToken(token) {
|
||
|
|
return (
|
||
|
|
token != null && token.type === "Punctuator" && token.value === ","
|
||
|
|
)
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Iterate the calls of the `RegExp` global variable.
|
||
|
|
* @param {Scope} globalScope The global scope object.
|
||
|
|
* @returns {IterableIterator<{node:Node,pattern:(string|null),flags:(string|null)}>} The iterator of `CallExpression` or `NewExpression` for `RegExp`.
|
||
|
|
*/
|
||
|
|
*getRegExpCalls(globalScope) {
|
||
|
|
const tracker = new ReferenceTracker(globalScope)
|
||
|
|
for (const { node } of tracker.iterateGlobalReferences({
|
||
|
|
RegExp: { [CALL]: true, [CONSTRUCT]: true },
|
||
|
|
})) {
|
||
|
|
const [patternNode, flagsNode] = node.arguments
|
||
|
|
yield {
|
||
|
|
node,
|
||
|
|
pattern: getStringIfConstant(patternNode, globalScope),
|
||
|
|
flags: getStringIfConstant(flagsNode, globalScope),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
}
|