forked from zhurui/management
76 lines
2.2 KiB
JavaScript
76 lines
2.2 KiB
JavaScript
|
/**
|
||
|
|
* @author Toru Nagashima
|
||
|
|
* See LICENSE file in root directory for full license.
|
||
|
|
*/
|
||
|
|
"use strict"
|
||
|
|
|
||
|
|
const path = require("path")
|
||
|
|
const { getStringIfConstant } = require("eslint-utils")
|
||
|
|
const resolve = require("resolve")
|
||
|
|
const getResolvePaths = require("./get-resolve-paths")
|
||
|
|
const getTryExtensions = require("./get-try-extensions")
|
||
|
|
const ImportTarget = require("./import-target")
|
||
|
|
const stripImportPathParams = require("./strip-import-path-params")
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks whether or not a given node is a callee.
|
||
|
|
*
|
||
|
|
* @param {ASTNode} node - A node to check.
|
||
|
|
* @returns {boolean} `true` if the node is a callee.
|
||
|
|
*/
|
||
|
|
function isCallee(node) {
|
||
|
|
return node.parent.type === "CallExpression" && node.parent.callee === node
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets references of "require".
|
||
|
|
*
|
||
|
|
* @param {escope.Scope} scope - The global scope.
|
||
|
|
* @returns {escope.Reference[]} References of "require".
|
||
|
|
*/
|
||
|
|
function getReferencesOfRequire(scope) {
|
||
|
|
const variable = scope.set.get("require")
|
||
|
|
if (!variable) {
|
||
|
|
// Not found.
|
||
|
|
return []
|
||
|
|
}
|
||
|
|
return variable.references
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets a list of `require()` targets.
|
||
|
|
*
|
||
|
|
* Core modules of Node.js (e.g. `fs`, `http`) are excluded.
|
||
|
|
*
|
||
|
|
* @param {RuleContext} context - The rule context.
|
||
|
|
* @param {boolean} includeCore - The flag to include core modules.
|
||
|
|
* @returns {ImportTarget[]} A list of found target's information.
|
||
|
|
*/
|
||
|
|
module.exports = function getRequireTargets(context, includeCore) {
|
||
|
|
const retv = []
|
||
|
|
const basedir = path.dirname(path.resolve(context.getFilename()))
|
||
|
|
const paths = getResolvePaths(context)
|
||
|
|
const references = getReferencesOfRequire(context.getScope())
|
||
|
|
const extensions = getTryExtensions(context)
|
||
|
|
const options = { basedir, paths, extensions }
|
||
|
|
|
||
|
|
for (const reference of references) {
|
||
|
|
const node = reference.identifier
|
||
|
|
|
||
|
|
// Skips if it's not a call of `require`.
|
||
|
|
if (!isCallee(node)) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
// Gets the target module.
|
||
|
|
const targetNode = node.parent.arguments[0]
|
||
|
|
const rawName = getStringIfConstant(targetNode)
|
||
|
|
const name = rawName && stripImportPathParams(rawName)
|
||
|
|
if (name && (includeCore || !resolve.isCore(name))) {
|
||
|
|
retv.push(new ImportTarget(targetNode, name, options))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return retv
|
||
|
|
}
|