Updating NPM dependencies

node_modules/istanbul-lib-report/lib/context.js

@@ -1,3 +1,4 @@
+'use strict';
 /*
  Copyright 2012-2015, Yahoo Inc.
  Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
@@ -7,29 +8,27 @@ const FileWriter = require('./file-writer');
 const XMLWriter = require('./xml-writer');
 const tree = require('./tree');
 const watermarks = require('./watermarks');
+const SummarizerFactory = require('./summarizer-factory');
 
 function defaultSourceLookup(path) {
     try {
         return fs.readFileSync(path, 'utf8');
     } catch (ex) {
-        throw new Error(
-            'Unable to lookup source: ' + path + '(' + ex.message + ')'
-        );
+        throw new Error(`Unable to lookup source: ${path} (${ex.message})`);
     }
 }
 
-function mergeWatermarks(specified, defaults) {
-    specified = specified || {};
-    Object.keys(defaults).forEach(k => {
+function normalizeWatermarks(specified = {}) {
+    Object.entries(watermarks.getDefault()).forEach(([k, value]) => {
         const specValue = specified[k];
-        if (
-            !(specValue && Array.isArray(specValue) && specValue.length === 2)
-        ) {
-            specified[k] = defaults[k];
+        if (!Array.isArray(specValue) || specValue.length !== 2) {
+            specified[k] = value;
         }
     });
+
     return specified;
 }
+
 /**
  * A reporting context that is passed to report implementations
  * @param {Object} [opts=null] opts options
@@ -41,12 +40,83 @@ function mergeWatermarks(specified, defaults) {
  *  filesystem lookups based on path.
  * @constructor
  */
-function Context(opts) {
-    opts = opts || {};
-    this.dir = opts.dir || 'coverage';
-    this.watermarks = mergeWatermarks(opts.watermarks, watermarks.getDefault());
-    this.sourceFinder = opts.sourceFinder || defaultSourceLookup;
-    this.data = {};
+class Context {
+    constructor(opts) {
+        this.dir = opts.dir || 'coverage';
+        this.watermarks = normalizeWatermarks(opts.watermarks);
+        this.sourceFinder = opts.sourceFinder || defaultSourceLookup;
+        this._summarizerFactory = new SummarizerFactory(
+            opts.coverageMap,
+            opts.defaultSummarizer
+        );
+        this.data = {};
+    }
+
+    /**
+     * returns a FileWriter implementation for reporting use. Also available
+     * as the `writer` property on the context.
+     * @returns {Writer}
+     */
+    getWriter() {
+        return this.writer;
+    }
+
+    /**
+     * returns the source code for the specified file path or throws if
+     * the source could not be found.
+     * @param {String} filePath the file path as found in a file coverage object
+     * @returns {String} the source code
+     */
+    getSource(filePath) {
+        return this.sourceFinder(filePath);
+    }
+
+    /**
+     * returns the coverage class given a coverage
+     * types and a percentage value.
+     * @param {String} type - the coverage type, one of `statements`, `functions`,
+     *  `branches`, or `lines`
+     * @param {Number} value - the percentage value
+     * @returns {String} one of `high`, `medium` or `low`
+     */
+    classForPercent(type, value) {
+        const watermarks = this.watermarks[type];
+        if (!watermarks) {
+            return 'unknown';
+        }
+        if (value < watermarks[0]) {
+            return 'low';
+        }
+        if (value >= watermarks[1]) {
+            return 'high';
+        }
+        return 'medium';
+    }
+
+    /**
+     * returns an XML writer for the supplied content writer
+     * @param {ContentWriter} contentWriter the content writer to which the returned XML writer
+     *  writes data
+     * @returns {XMLWriter}
+     */
+    getXMLWriter(contentWriter) {
+        return new XMLWriter(contentWriter);
+    }
+
+    /**
+     * returns a full visitor given a partial one.
+     * @param {Object} partialVisitor a partial visitor only having the functions of
+     *  interest to the caller. These functions are called with a scope that is the
+     *  supplied object.
+     * @returns {Visitor}
+     */
+    getVisitor(partialVisitor) {
+        return new tree.Visitor(partialVisitor);
+    }
+
+    getTree(name = 'defaultSummarizer') {
+        return this._summarizerFactory[name];
+    }
 }
 
 Object.defineProperty(Context.prototype, 'writer', {
@@ -59,68 +129,4 @@ Object.defineProperty(Context.prototype, 'writer', {
     }
 });
 
-/**
- * returns a FileWriter implementation for reporting use. Also available
- * as the `writer` property on the context.
- * @returns {Writer}
- */
-Context.prototype.getWriter = function() {
-    return this.writer;
-};
-
-/**
- * returns the source code for the specified file path or throws if
- * the source could not be found.
- * @param {String} filePath the file path as found in a file coverage object
- * @returns {String} the source code
- */
-Context.prototype.getSource = function(filePath) {
-    return this.sourceFinder(filePath);
-};
-
-/**
- * returns the coverage class given a coverage
- * types and a percentage value.
- * @param {String} type - the coverage type, one of `statements`, `functions`,
- *  `branches`, or `lines`
- * @param {Number} value - the percentage value
- * @returns {String} one of `high`, `medium` or `low`
- */
-Context.prototype.classForPercent = function(type, value) {
-    const watermarks = this.watermarks[type];
-    if (!watermarks) {
-        return 'unknown';
-    }
-    if (value < watermarks[0]) {
-        return 'low';
-    }
-    if (value >= watermarks[1]) {
-        return 'high';
-    }
-    return 'medium';
-};
-/**
- * returns an XML writer for the supplied content writer
- * @param {ContentWriter} contentWriter the content writer to which the returned XML writer
- *  writes data
- * @returns {XMLWriter}
- */
-Context.prototype.getXMLWriter = function(contentWriter) {
-    return new XMLWriter(contentWriter);
-};
-/**
- * returns a full visitor given a partial one.
- * @param {Object} partialVisitor a partial visitor only having the functions of
- *  interest to the caller. These functions are called with a scope that is the
- *  supplied object.
- * @returns {Visitor}
- */
-Context.prototype.getVisitor = function(partialVisitor) {
-    return new tree.Visitor(partialVisitor);
-};
-
-module.exports = {
-    create(opts) {
-        return new Context(opts);
-    }
-};
+module.exports = Context;