initial commit of actions

github/codeql-action-v2/node_modules/eslint-plugin-eslint-comments/lib/internal/disabled-area.js

@@ -0,0 +1,211 @@
+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ * See LICENSE file in root directory for full license.
+ */
+"use strict"
+
+const utils = require("./utils")
+const DELIMITER = /[\s,]+/gu
+const pool = new WeakMap()
+
+module.exports = class DisabledArea {
+    /**
+     * Get singleton instance for the given source code.
+     *
+     * @param {eslint.SourceCode} sourceCode - The source code to get.
+     * @returns {DisabledArea} The singleton object for the source code.
+     */
+    static get(sourceCode) {
+        let retv = pool.get(sourceCode.ast)
+
+        if (retv == null) {
+            retv = new DisabledArea()
+            retv._scan(sourceCode)
+            pool.set(sourceCode.ast, retv)
+        }
+
+        return retv
+    }
+
+    /**
+     * Constructor.
+     */
+    constructor() {
+        this.areas = []
+        this.duplicateDisableDirectives = []
+        this.unusedEnableDirectives = []
+        this.numberOfRelatedDisableDirectives = new Map()
+    }
+
+    /**
+     * Make disabled area.
+     *
+     * @param {Token} comment - The comment token to disable.
+     * @param {object} location - The start location to disable.
+     * @param {string[]|null} ruleIds - The ruleId names to disable.
+     * @param {string} kind - The kind of disable-comments.
+     * @returns {void}
+     * @private
+     */
+    _disable(comment, location, ruleIds, kind) {
+        if (ruleIds) {
+            for (const ruleId of ruleIds) {
+                if (this._getArea(ruleId, location) != null) {
+                    this.duplicateDisableDirectives.push({ comment, ruleId })
+                }
+
+                this.areas.push({
+                    comment,
+                    ruleId,
+                    kind,
+                    start: location,
+                    end: null,
+                })
+            }
+        } else {
+            if (this._getArea(null, location) != null) {
+                this.duplicateDisableDirectives.push({ comment, ruleId: null })
+            }
+
+            this.areas.push({
+                comment,
+                ruleId: null,
+                kind,
+                start: location,
+                end: null,
+            })
+        }
+    }
+
+    /**
+     * Close disabled area.
+     *
+     * @param {Token} comment - The comment token to enable.
+     * @param {object} location - The start location to enable.
+     * @param {string[]|null} ruleIds - The ruleId names to enable.
+     * @param {string} kind - The kind of disable-comments.
+     * @returns {void}
+     * @private
+     */
+    _enable(comment, location, ruleIds, kind) {
+        const relatedDisableDirectives = new Set()
+
+        if (ruleIds) {
+            for (const ruleId of ruleIds) {
+                let used = false
+
+                for (let i = this.areas.length - 1; i >= 0; --i) {
+                    const area = this.areas[i]
+
+                    if (
+                        area.end === null &&
+                        area.kind === kind &&
+                        area.ruleId === ruleId
+                    ) {
+                        relatedDisableDirectives.add(area.comment)
+                        area.end = location
+                        used = true
+                    }
+                }
+
+                if (!used) {
+                    this.unusedEnableDirectives.push({ comment, ruleId })
+                }
+            }
+        } else {
+            let used = false
+
+            for (let i = this.areas.length - 1; i >= 0; --i) {
+                const area = this.areas[i]
+
+                if (area.end === null && area.kind === kind) {
+                    relatedDisableDirectives.add(area.comment)
+                    area.end = location
+                    used = true
+                }
+            }
+
+            if (!used) {
+                this.unusedEnableDirectives.push({ comment, ruleId: null })
+            }
+        }
+
+        this.numberOfRelatedDisableDirectives.set(
+            comment,
+            relatedDisableDirectives.size
+        )
+    }
+
+    /**
+     * Gets the area of the given ruleId and location.
+     *
+     * @param {string|null} ruleId - The ruleId name to get.
+     * @param {object} location - The location to get.
+     * @returns {object|null} The area of the given ruleId and location.
+     * @private
+     */
+    _getArea(ruleId, location) {
+        for (let i = this.areas.length - 1; i >= 0; --i) {
+            const area = this.areas[i]
+
+            if (
+                (area.ruleId === null || area.ruleId === ruleId) &&
+                utils.lte(area.start, location) &&
+                (area.end === null || utils.lte(location, area.end))
+            ) {
+                return area
+            }
+        }
+
+        return null
+    }
+
+    /**
+     * Scan the source code and setup disabled area list.
+     *
+     * @param {eslint.SourceCode} sourceCode - The source code to scan.
+     * @returns {void}
+     * @private
+     */
+    _scan(sourceCode) {
+        for (const comment of sourceCode.getAllComments()) {
+            const directiveComment = utils.parseDirectiveComment(comment)
+            if (directiveComment == null) {
+                continue
+            }
+
+            const kind = directiveComment.kind
+            if (
+                kind !== "eslint-disable" &&
+                kind !== "eslint-enable" &&
+                kind !== "eslint-disable-line" &&
+                kind !== "eslint-disable-next-line"
+            ) {
+                continue
+            }
+            const ruleIds = directiveComment.value
+                ? directiveComment.value.split(DELIMITER)
+                : null
+
+            if (kind === "eslint-disable") {
+                this._disable(comment, comment.loc.start, ruleIds, "block")
+            } else if (kind === "eslint-enable") {
+                this._enable(comment, comment.loc.start, ruleIds, "block")
+            } else if (kind === "eslint-disable-line") {
+                const line = comment.loc.start.line
+                const start = { line, column: 0 }
+                const end = { line: line + 1, column: -1 }
+
+                this._disable(comment, start, ruleIds, "line")
+                this._enable(comment, end, ruleIds, "line")
+            } else if (kind === "eslint-disable-next-line") {
+                const line = comment.loc.start.line
+                const start = { line: line + 1, column: 0 }
+                const end = { line: line + 2, column: -1 }
+
+                this._disable(comment, start, ruleIds, "line")
+                this._enable(comment, end, ruleIds, "line")
+            }
+        }
+    }
+}