node_modules

1 files changed, 195 insertions, 0 deletions

diff --git a/node_modules/concordance/lib/themeUtils.js b/node_modules/concordance/lib/themeUtils.js
new file mode 100644
index 000000000..a0a64b586
--- /dev/null
+++ b/node_modules/concordance/lib/themeUtils.js
@@ -0,0 +1,195 @@
+'use strict'
+
+const cloneDeep = require('lodash.clonedeep')
+const merge = require('lodash.merge')
+
+const pluginRegistry = require('./pluginRegistry')
+
+function freezeTheme (theme) {
+  const queue = [theme]
+  while (queue.length > 0) {
+    const object = queue.shift()
+    Object.freeze(object)
+
+    for (const key of Object.keys(object)) {
+      const value = object[key]
+      if (value !== null && typeof value === 'object') {
+        queue.push(value)
+      }
+    }
+  }
+
+  return theme
+}
+
+const defaultTheme = freezeTheme({
+  boolean: { open: '', close: '' },
+  circular: '[Circular]',
+  date: {
+    invalid: 'invalid',
+    value: { open: '', close: '' }
+  },
+  diffGutters: {
+    actual: '- ',
+    expected: '+ ',
+    padding: '  '
+  },
+  error: {
+    ctor: { open: '(', close: ')' },
+    name: { open: '', close: '' }
+  },
+  function: {
+    name: { open: '', close: '' },
+    stringTag: { open: '', close: '' }
+  },
+  global: { open: '', close: '' },
+  item: {
+    after: ',',
+    customFormat: null,
+    increaseValueIndent: false
+  },
+  list: { openBracket: '[', closeBracket: ']' },
+  mapEntry: {
+    after: ',',
+    separator: ' => '
+  },
+  maxDepth: '…',
+  null: { open: '', close: '' },
+  number: { open: '', close: '' },
+  object: {
+    openBracket: '{',
+    closeBracket: '}',
+    ctor: { open: '', close: '' },
+    stringTag: { open: '@', close: '' },
+    secondaryStringTag: { open: '@', close: '' }
+  },
+  property: {
+    after: ',',
+    customFormat: null,
+    keyBracket: { open: '[', close: ']' },
+    separator: ': ',
+    increaseValueIndent: false
+  },
+  regexp: {
+    source: { open: '/', close: '/' },
+    flags: { open: '', close: '' },
+    separator: '---'
+  },
+  stats: { separator: '---' },
+  string: {
+    open: '',
+    close: '',
+    line: { open: "'", close: "'", escapeQuote: "'" },
+    multiline: { start: '`', end: '`', escapeQuote: '``' },
+    controlPicture: { open: '', close: '' },
+    diff: {
+      insert: { open: '', close: '' },
+      delete: { open: '', close: '' },
+      equal: { open: '', close: '' },
+      insertLine: { open: '', close: '' },
+      deleteLine: { open: '', close: '' }
+    }
+  },
+  symbol: { open: '', close: '' },
+  typedArray: {
+    bytes: { open: '', close: '' }
+  },
+  undefined: { open: '', close: '' }
+})
+
+const pluginRefs = new Map()
+pluginRefs.count = 0
+const normalizedPluginThemes = new Map()
+function normalizePlugins (plugins) {
+  if (!Array.isArray(plugins) || plugins.length === 0) return null
+
+  const refs = []
+  const themes = []
+  for (const fromPlugin of pluginRegistry.getThemes(plugins)) {
+    if (!pluginRefs.has(fromPlugin.name)) {
+      pluginRefs.set(fromPlugin.name, pluginRefs.count++)
+    }
+
+    refs.push(pluginRefs.get(fromPlugin.name))
+    themes.push(fromPlugin.theme)
+  }
+
+  const ref = refs.join('.')
+  if (normalizedPluginThemes.has(ref)) {
+    return {
+      ref,
+      theme: normalizedPluginThemes.get(ref)
+    }
+  }
+
+  const theme = freezeTheme(themes.reduce((acc, pluginTheme) => {
+    return merge(acc, pluginTheme)
+  }, cloneDeep(defaultTheme)))
+  normalizedPluginThemes.set(ref, theme)
+  return {ref, theme}
+}
+
+const normalizedCache = new WeakMap()
+function normalize (options) {
+  options = Object.assign({plugins: [], theme: null}, options)
+
+  const normalizedPlugins = normalizePlugins(options.plugins)
+  if (!options.theme) {
+    return normalizedPlugins ? normalizedPlugins.theme : defaultTheme
+  }
+
+  const entry = normalizedCache.get(options.theme) || {theme: null, withPlugins: new Map()}
+  if (!normalizedCache.has(options.theme)) normalizedCache.set(options.theme, entry)
+
+  if (normalizedPlugins) {
+    if (entry.withPlugins.has(normalizedPlugins.ref)) {
+      return entry.withPlugins.get(normalizedPlugins.ref)
+    }
+
+    const theme = freezeTheme(merge(cloneDeep(normalizedPlugins.theme), options.theme))
+    entry.withPlugins.set(normalizedPlugins.ref, theme)
+    return theme
+  }
+
+  if (!entry.theme) {
+    entry.theme = freezeTheme(merge(cloneDeep(defaultTheme), options.theme))
+  }
+  return entry.theme
+}
+exports.normalize = normalize
+
+const modifiers = new WeakMap()
+function addModifier (descriptor, modifier) {
+  if (modifiers.has(descriptor)) {
+    modifiers.get(descriptor).add(modifier)
+  } else {
+    modifiers.set(descriptor, new Set([modifier]))
+  }
+}
+exports.addModifier = addModifier
+
+const modifierCache = new WeakMap()
+const originalCache = new WeakMap()
+function applyModifiers (descriptor, theme) {
+  if (!modifiers.has(descriptor)) return theme
+
+  return Array.from(modifiers.get(descriptor)).reduce((prev, modifier) => {
+    const cache = modifierCache.get(modifier) || new WeakMap()
+    if (!modifierCache.has(modifier)) modifierCache.set(modifier, cache)
+
+    if (cache.has(prev)) return cache.get(prev)
+
+    const modifiedTheme = cloneDeep(prev)
+    modifier(modifiedTheme)
+    freezeTheme(modifiedTheme)
+    cache.set(prev, modifiedTheme)
+    originalCache.set(modifiedTheme, theme)
+    return modifiedTheme
+  }, theme)
+}
+exports.applyModifiers = applyModifiers
+
+function applyModifiersToOriginal (descriptor, theme) {
+  return applyModifiers(descriptor, originalCache.get(theme) || theme)
+}
+exports.applyModifiersToOriginal = applyModifiersToOriginal