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1 files changed, 936 insertions, 0 deletions

diff --git a/node_modules/tailwindcss/src/lib/generateRules.js b/node_modules/tailwindcss/src/lib/generateRules.js
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+++ b/node_modules/tailwindcss/src/lib/generateRules.js
@@ -0,0 +1,936 @@
+import postcss from 'postcss'
+import selectorParser from 'postcss-selector-parser'
+import parseObjectStyles from '../util/parseObjectStyles'
+import isPlainObject from '../util/isPlainObject'
+import prefixSelector from '../util/prefixSelector'
+import { updateAllClasses, getMatchingTypes } from '../util/pluginUtils'
+import log from '../util/log'
+import * as sharedState from './sharedState'
+import {
+  formatVariantSelector,
+  finalizeSelector,
+  eliminateIrrelevantSelectors,
+} from '../util/formatVariantSelector'
+import { asClass } from '../util/nameClass'
+import { normalize } from '../util/dataTypes'
+import { isValidVariantFormatString, parseVariant, INTERNAL_FEATURES } from './setupContextUtils'
+import isValidArbitraryValue from '../util/isSyntacticallyValidPropertyValue'
+import { splitAtTopLevelOnly } from '../util/splitAtTopLevelOnly.js'
+import { flagEnabled } from '../featureFlags'
+import { applyImportantSelector } from '../util/applyImportantSelector'
+
+let classNameParser = selectorParser((selectors) => {
+  return selectors.first.filter(({ type }) => type === 'class').pop().value
+})
+
+export function getClassNameFromSelector(selector) {
+  return classNameParser.transformSync(selector)
+}
+
+// Generate match permutations for a class candidate, like:
+// ['ring-offset-blue', '100']
+// ['ring-offset', 'blue-100']
+// ['ring', 'offset-blue-100']
+// Example with dynamic classes:
+// ['grid-cols', '[[linename],1fr,auto]']
+// ['grid', 'cols-[[linename],1fr,auto]']
+function* candidatePermutations(candidate) {
+  let lastIndex = Infinity
+
+  while (lastIndex >= 0) {
+    let dashIdx
+    let wasSlash = false
+
+    if (lastIndex === Infinity && candidate.endsWith(']')) {
+      let bracketIdx = candidate.indexOf('[')
+
+      // If character before `[` isn't a dash or a slash, this isn't a dynamic class
+      // eg. string[]
+      if (candidate[bracketIdx - 1] === '-') {
+        dashIdx = bracketIdx - 1
+      } else if (candidate[bracketIdx - 1] === '/') {
+        dashIdx = bracketIdx - 1
+        wasSlash = true
+      } else {
+        dashIdx = -1
+      }
+    } else if (lastIndex === Infinity && candidate.includes('/')) {
+      dashIdx = candidate.lastIndexOf('/')
+      wasSlash = true
+    } else {
+      dashIdx = candidate.lastIndexOf('-', lastIndex)
+    }
+
+    if (dashIdx < 0) {
+      break
+    }
+
+    let prefix = candidate.slice(0, dashIdx)
+    let modifier = candidate.slice(wasSlash ? dashIdx : dashIdx + 1)
+
+    lastIndex = dashIdx - 1
+
+    // TODO: This feels a bit hacky
+    if (prefix === '' || modifier === '/') {
+      continue
+    }
+
+    yield [prefix, modifier]
+  }
+}
+
+function applyPrefix(matches, context) {
+  if (matches.length === 0 || context.tailwindConfig.prefix === '') {
+    return matches
+  }
+
+  for (let match of matches) {
+    let [meta] = match
+    if (meta.options.respectPrefix) {
+      let container = postcss.root({ nodes: [match[1].clone()] })
+      let classCandidate = match[1].raws.tailwind.classCandidate
+
+      container.walkRules((r) => {
+        // If this is a negative utility with a dash *before* the prefix we
+        // have to ensure that the generated selector matches the candidate
+
+        // Not doing this will cause `-tw-top-1` to generate the class `.tw--top-1`
+        // The disconnect between candidate <-> class can cause @apply to hard crash.
+        let shouldPrependNegative = classCandidate.startsWith('-')
+
+        r.selector = prefixSelector(
+          context.tailwindConfig.prefix,
+          r.selector,
+          shouldPrependNegative
+        )
+      })
+
+      match[1] = container.nodes[0]
+    }
+  }
+
+  return matches
+}
+
+function applyImportant(matches, classCandidate) {
+  if (matches.length === 0) {
+    return matches
+  }
+
+  let result = []
+
+  for (let [meta, rule] of matches) {
+    let container = postcss.root({ nodes: [rule.clone()] })
+
+    container.walkRules((r) => {
+      let ast = selectorParser().astSync(r.selector)
+
+      // Remove extraneous selectors that do not include the base candidate
+      ast.each((sel) => eliminateIrrelevantSelectors(sel, classCandidate))
+
+      // Update all instances of the base candidate to include the important marker
+      updateAllClasses(ast, (className) =>
+        className === classCandidate ? `!${className}` : className
+      )
+
+      r.selector = ast.toString()
+
+      r.walkDecls((d) => (d.important = true))
+    })
+
+    result.push([{ ...meta, important: true }, container.nodes[0]])
+  }
+
+  return result
+}
+
+// Takes a list of rule tuples and applies a variant like `hover`, sm`,
+// whatever to it. We used to do some extra caching here to avoid generating
+// a variant of the same rule more than once, but this was never hit because
+// we cache at the entire selector level further up the tree.
+//
+// Technically you can get a cache hit if you have `hover:focus:text-center`
+// and `focus:hover:text-center` in the same project, but it doesn't feel
+// worth the complexity for that case.
+
+function applyVariant(variant, matches, context) {
+  if (matches.length === 0) {
+    return matches
+  }
+
+  /** @type {{modifier: string | null, value: string | null}} */
+  let args = { modifier: null, value: sharedState.NONE }
+
+  // Retrieve "modifier"
+  {
+    let [baseVariant, ...modifiers] = splitAtTopLevelOnly(variant, '/')
+
+    // This is a hack to support variants with `/` in them, like `ar-1/10/20:text-red-500`
+    // In this case 1/10 is a value but /20 is a modifier
+    if (modifiers.length > 1) {
+      baseVariant = baseVariant + '/' + modifiers.slice(0, -1).join('/')
+      modifiers = modifiers.slice(-1)
+    }
+
+    if (modifiers.length && !context.variantMap.has(variant)) {
+      variant = baseVariant
+      args.modifier = modifiers[0]
+
+      if (!flagEnabled(context.tailwindConfig, 'generalizedModifiers')) {
+        return []
+      }
+    }
+  }
+
+  // Retrieve "arbitrary value"
+  if (variant.endsWith(']') && !variant.startsWith('[')) {
+    // We either have:
+    //   @[200px]
+    //   group-[:hover]
+    //
+    // But we don't want:
+    //   @-[200px]        (`-` is incorrect)
+    //   group[:hover]    (`-` is missing)
+    let match = /(.)(-?)\[(.*)\]/g.exec(variant)
+    if (match) {
+      let [, char, separator, value] = match
+      // @-[200px] case
+      if (char === '@' && separator === '-') return []
+      // group[:hover] case
+      if (char !== '@' && separator === '') return []
+
+      variant = variant.replace(`${separator}[${value}]`, '')
+      args.value = value
+    }
+  }
+
+  // Register arbitrary variants
+  if (isArbitraryValue(variant) && !context.variantMap.has(variant)) {
+    let sort = context.offsets.recordVariant(variant)
+
+    let selector = normalize(variant.slice(1, -1))
+    let selectors = splitAtTopLevelOnly(selector, ',')
+
+    // We do not support multiple selectors for arbitrary variants
+    if (selectors.length > 1) {
+      return []
+    }
+
+    if (!selectors.every(isValidVariantFormatString)) {
+      return []
+    }
+
+    let records = selectors.map((sel, idx) => [
+      context.offsets.applyParallelOffset(sort, idx),
+      parseVariant(sel.trim()),
+    ])
+
+    context.variantMap.set(variant, records)
+  }
+
+  if (context.variantMap.has(variant)) {
+    let isArbitraryVariant = isArbitraryValue(variant)
+    let internalFeatures = context.variantOptions.get(variant)?.[INTERNAL_FEATURES] ?? {}
+    let variantFunctionTuples = context.variantMap.get(variant).slice()
+    let result = []
+
+    let respectPrefix = (() => {
+      if (isArbitraryVariant) return false
+      if (internalFeatures.respectPrefix === false) return false
+      return true
+    })()
+
+    for (let [meta, rule] of matches) {
+      // Don't generate variants for user css
+      if (meta.layer === 'user') {
+        continue
+      }
+
+      let container = postcss.root({ nodes: [rule.clone()] })
+
+      for (let [variantSort, variantFunction, containerFromArray] of variantFunctionTuples) {
+        let clone = (containerFromArray ?? container).clone()
+        let collectedFormats = []
+
+        function prepareBackup() {
+          // Already prepared, chicken out
+          if (clone.raws.neededBackup) {
+            return
+          }
+          clone.raws.neededBackup = true
+          clone.walkRules((rule) => (rule.raws.originalSelector = rule.selector))
+        }
+
+        function modifySelectors(modifierFunction) {
+          prepareBackup()
+          clone.each((rule) => {
+            if (rule.type !== 'rule') {
+              return
+            }
+
+            rule.selectors = rule.selectors.map((selector) => {
+              return modifierFunction({
+                get className() {
+                  return getClassNameFromSelector(selector)
+                },
+                selector,
+              })
+            })
+          })
+
+          return clone
+        }
+
+        let ruleWithVariant = variantFunction({
+          // Public API
+          get container() {
+            prepareBackup()
+            return clone
+          },
+          separator: context.tailwindConfig.separator,
+          modifySelectors,
+
+          // Private API for now
+          wrap(wrapper) {
+            let nodes = clone.nodes
+            clone.removeAll()
+            wrapper.append(nodes)
+            clone.append(wrapper)
+          },
+          format(selectorFormat) {
+            collectedFormats.push({
+              format: selectorFormat,
+              respectPrefix,
+            })
+          },
+          args,
+        })
+
+        // It can happen that a list of format strings is returned from within the function. In that
+        // case, we have to process them as well. We can use the existing `variantSort`.
+        if (Array.isArray(ruleWithVariant)) {
+          for (let [idx, variantFunction] of ruleWithVariant.entries()) {
+            // This is a little bit scary since we are pushing to an array of items that we are
+            // currently looping over. However, you can also think of it like a processing queue
+            // where you keep handling jobs until everything is done and each job can queue more
+            // jobs if needed.
+            variantFunctionTuples.push([
+              context.offsets.applyParallelOffset(variantSort, idx),
+              variantFunction,
+
+              // If the clone has been modified we have to pass that back
+              // though so each rule can use the modified container
+              clone.clone(),
+            ])
+          }
+          continue
+        }
+
+        if (typeof ruleWithVariant === 'string') {
+          collectedFormats.push({
+            format: ruleWithVariant,
+            respectPrefix,
+          })
+        }
+
+        if (ruleWithVariant === null) {
+          continue
+        }
+
+        // We had to backup selectors, therefore we assume that somebody touched
+        // `container` or `modifySelectors`. Let's see if they did, so that we
+        // can restore the selectors, and collect the format strings.
+        if (clone.raws.neededBackup) {
+          delete clone.raws.neededBackup
+          clone.walkRules((rule) => {
+            let before = rule.raws.originalSelector
+            if (!before) return
+            delete rule.raws.originalSelector
+            if (before === rule.selector) return // No mutation happened
+
+            let modified = rule.selector
+
+            // Rebuild the base selector, this is what plugin authors would do
+            // as well. E.g.: `${variant}${separator}${className}`.
+            // However, plugin authors probably also prepend or append certain
+            // classes, pseudos, ids, ...
+            let rebuiltBase = selectorParser((selectors) => {
+              selectors.walkClasses((classNode) => {
+                classNode.value = `${variant}${context.tailwindConfig.separator}${classNode.value}`
+              })
+            }).processSync(before)
+
+            // Now that we know the original selector, the new selector, and
+            // the rebuild part in between, we can replace the part that plugin
+            // authors need to rebuild with `&`, and eventually store it in the
+            // collectedFormats. Similar to what `format('...')` would do.
+            //
+            // E.g.:
+            //                   variant: foo
+            //                  selector: .markdown > p
+            //      modified (by plugin): .foo .foo\\:markdown > p
+            //    rebuiltBase (internal): .foo\\:markdown > p
+            //                    format: .foo &
+            collectedFormats.push({
+              format: modified.replace(rebuiltBase, '&'),
+              respectPrefix,
+            })
+            rule.selector = before
+          })
+        }
+
+        // This tracks the originating layer for the variant
+        // For example:
+        // .sm:underline {} is a variant of something in the utilities layer
+        // .sm:container {} is a variant of the container component
+        clone.nodes[0].raws.tailwind = { ...clone.nodes[0].raws.tailwind, parentLayer: meta.layer }
+
+        let withOffset = [
+          {
+            ...meta,
+            sort: context.offsets.applyVariantOffset(
+              meta.sort,
+              variantSort,
+              Object.assign(args, context.variantOptions.get(variant))
+            ),
+            collectedFormats: (meta.collectedFormats ?? []).concat(collectedFormats),
+          },
+          clone.nodes[0],
+        ]
+        result.push(withOffset)
+      }
+    }
+
+    return result
+  }
+
+  return []
+}
+
+function parseRules(rule, cache, options = {}) {
+  // PostCSS node
+  if (!isPlainObject(rule) && !Array.isArray(rule)) {
+    return [[rule], options]
+  }
+
+  // Tuple
+  if (Array.isArray(rule)) {
+    return parseRules(rule[0], cache, rule[1])
+  }
+
+  // Simple object
+  if (!cache.has(rule)) {
+    cache.set(rule, parseObjectStyles(rule))
+  }
+
+  return [cache.get(rule), options]
+}
+
+const IS_VALID_PROPERTY_NAME = /^[a-z_-]/
+
+function isValidPropName(name) {
+  return IS_VALID_PROPERTY_NAME.test(name)
+}
+
+/**
+ * @param {string} declaration
+ * @returns {boolean}
+ */
+function looksLikeUri(declaration) {
+  // Quick bailout for obvious non-urls
+  // This doesn't support schemes that don't use a leading // but that's unlikely to be a problem
+  if (!declaration.includes('://')) {
+    return false
+  }
+
+  try {
+    const url = new URL(declaration)
+    return url.scheme !== '' && url.host !== ''
+  } catch (err) {
+    // Definitely not a valid url
+    return false
+  }
+}
+
+function isParsableNode(node) {
+  let isParsable = true
+
+  node.walkDecls((decl) => {
+    if (!isParsableCssValue(decl.prop, decl.value)) {
+      isParsable = false
+      return false
+    }
+  })
+
+  return isParsable
+}
+
+function isParsableCssValue(property, value) {
+  // We don't want to to treat [https://example.com] as a custom property
+  // Even though, according to the CSS grammar, it's a totally valid CSS declaration
+  // So we short-circuit here by checking if the custom property looks like a url
+  if (looksLikeUri(`${property}:${value}`)) {
+    return false
+  }
+
+  try {
+    postcss.parse(`a{${property}:${value}}`).toResult()
+    return true
+  } catch (err) {
+    return false
+  }
+}
+
+function extractArbitraryProperty(classCandidate, context) {
+  let [, property, value] = classCandidate.match(/^\[([a-zA-Z0-9-_]+):(\S+)\]$/) ?? []
+
+  if (value === undefined) {
+    return null
+  }
+
+  if (!isValidPropName(property)) {
+    return null
+  }
+
+  if (!isValidArbitraryValue(value)) {
+    return null
+  }
+
+  let normalized = normalize(value, { property })
+
+  if (!isParsableCssValue(property, normalized)) {
+    return null
+  }
+
+  let sort = context.offsets.arbitraryProperty()
+
+  return [
+    [
+      { sort, layer: 'utilities' },
+      () => ({
+        [asClass(classCandidate)]: {
+          [property]: normalized,
+        },
+      }),
+    ],
+  ]
+}
+
+function* resolveMatchedPlugins(classCandidate, context) {
+  if (context.candidateRuleMap.has(classCandidate)) {
+    yield [context.candidateRuleMap.get(classCandidate), 'DEFAULT']
+  }
+
+  yield* (function* (arbitraryPropertyRule) {
+    if (arbitraryPropertyRule !== null) {
+      yield [arbitraryPropertyRule, 'DEFAULT']
+    }
+  })(extractArbitraryProperty(classCandidate, context))
+
+  let candidatePrefix = classCandidate
+  let negative = false
+
+  const twConfigPrefix = context.tailwindConfig.prefix
+
+  const twConfigPrefixLen = twConfigPrefix.length
+
+  const hasMatchingPrefix =
+    candidatePrefix.startsWith(twConfigPrefix) || candidatePrefix.startsWith(`-${twConfigPrefix}`)
+
+  if (candidatePrefix[twConfigPrefixLen] === '-' && hasMatchingPrefix) {
+    negative = true
+    candidatePrefix = twConfigPrefix + candidatePrefix.slice(twConfigPrefixLen + 1)
+  }
+
+  if (negative && context.candidateRuleMap.has(candidatePrefix)) {
+    yield [context.candidateRuleMap.get(candidatePrefix), '-DEFAULT']
+  }
+
+  for (let [prefix, modifier] of candidatePermutations(candidatePrefix)) {
+    if (context.candidateRuleMap.has(prefix)) {
+      yield [context.candidateRuleMap.get(prefix), negative ? `-${modifier}` : modifier]
+    }
+  }
+}
+
+function splitWithSeparator(input, separator) {
+  if (input === sharedState.NOT_ON_DEMAND) {
+    return [sharedState.NOT_ON_DEMAND]
+  }
+
+  return splitAtTopLevelOnly(input, separator)
+}
+
+function* recordCandidates(matches, classCandidate) {
+  for (const match of matches) {
+    match[1].raws.tailwind = {
+      ...match[1].raws.tailwind,
+      classCandidate,
+      preserveSource: match[0].options?.preserveSource ?? false,
+    }
+
+    yield match
+  }
+}
+
+function* resolveMatches(candidate, context) {
+  let separator = context.tailwindConfig.separator
+  let [classCandidate, ...variants] = splitWithSeparator(candidate, separator).reverse()
+  let important = false
+
+  if (classCandidate.startsWith('!')) {
+    important = true
+    classCandidate = classCandidate.slice(1)
+  }
+
+  // TODO: Reintroduce this in ways that doesn't break on false positives
+  // function sortAgainst(toSort, against) {
+  //   return toSort.slice().sort((a, z) => {
+  //     return bigSign(against.get(a)[0] - against.get(z)[0])
+  //   })
+  // }
+  // let sorted = sortAgainst(variants, context.variantMap)
+  // if (sorted.toString() !== variants.toString()) {
+  //   let corrected = sorted.reverse().concat(classCandidate).join(':')
+  //   throw new Error(`Class ${candidate} should be written as ${corrected}`)
+  // }
+
+  for (let matchedPlugins of resolveMatchedPlugins(classCandidate, context)) {
+    let matches = []
+    let typesByMatches = new Map()
+
+    let [plugins, modifier] = matchedPlugins
+    let isOnlyPlugin = plugins.length === 1
+
+    for (let [sort, plugin] of plugins) {
+      let matchesPerPlugin = []
+
+      if (typeof plugin === 'function') {
+        for (let ruleSet of [].concat(plugin(modifier, { isOnlyPlugin }))) {
+          let [rules, options] = parseRules(ruleSet, context.postCssNodeCache)
+          for (let rule of rules) {
+            matchesPerPlugin.push([{ ...sort, options: { ...sort.options, ...options } }, rule])
+          }
+        }
+      }
+      // Only process static plugins on exact matches
+      else if (modifier === 'DEFAULT' || modifier === '-DEFAULT') {
+        let ruleSet = plugin
+        let [rules, options] = parseRules(ruleSet, context.postCssNodeCache)
+        for (let rule of rules) {
+          matchesPerPlugin.push([{ ...sort, options: { ...sort.options, ...options } }, rule])
+        }
+      }
+
+      if (matchesPerPlugin.length > 0) {
+        let matchingTypes = Array.from(
+          getMatchingTypes(
+            sort.options?.types ?? [],
+            modifier,
+            sort.options ?? {},
+            context.tailwindConfig
+          )
+        ).map(([_, type]) => type)
+
+        if (matchingTypes.length > 0) {
+          typesByMatches.set(matchesPerPlugin, matchingTypes)
+        }
+
+        matches.push(matchesPerPlugin)
+      }
+    }
+
+    if (isArbitraryValue(modifier)) {
+      if (matches.length > 1) {
+        // Partition plugins in 2 categories so that we can start searching in the plugins that
+        // don't have `any` as a type first.
+        let [withAny, withoutAny] = matches.reduce(
+          (group, plugin) => {
+            let hasAnyType = plugin.some(([{ options }]) =>
+              options.types.some(({ type }) => type === 'any')
+            )
+
+            if (hasAnyType) {
+              group[0].push(plugin)
+            } else {
+              group[1].push(plugin)
+            }
+            return group
+          },
+          [[], []]
+        )
+
+        function findFallback(matches) {
+          // If only a single plugin matches, let's take that one
+          if (matches.length === 1) {
+            return matches[0]
+          }
+
+          // Otherwise, find the plugin that creates a valid rule given the arbitrary value, and
+          // also has the correct type which preferOnConflicts the plugin in case of clashes.
+          return matches.find((rules) => {
+            let matchingTypes = typesByMatches.get(rules)
+            return rules.some(([{ options }, rule]) => {
+              if (!isParsableNode(rule)) {
+                return false
+              }
+
+              return options.types.some(
+                ({ type, preferOnConflict }) => matchingTypes.includes(type) && preferOnConflict
+              )
+            })
+          })
+        }
+
+        // Try to find a fallback plugin, because we already know that multiple plugins matched for
+        // the given arbitrary value.
+        let fallback = findFallback(withoutAny) ?? findFallback(withAny)
+        if (fallback) {
+          matches = [fallback]
+        }
+
+        // We couldn't find a fallback plugin which means that there are now multiple plugins that
+        // generated css for the current candidate. This means that the result is ambiguous and this
+        // should not happen. We won't generate anything right now, so let's report this to the user
+        // by logging some options about what they can do.
+        else {
+          let typesPerPlugin = matches.map(
+            (match) => new Set([...(typesByMatches.get(match) ?? [])])
+          )
+
+          // Remove duplicates, so that we can detect proper unique types for each plugin.
+          for (let pluginTypes of typesPerPlugin) {
+            for (let type of pluginTypes) {
+              let removeFromOwnGroup = false
+
+              for (let otherGroup of typesPerPlugin) {
+                if (pluginTypes === otherGroup) continue
+
+                if (otherGroup.has(type)) {
+                  otherGroup.delete(type)
+                  removeFromOwnGroup = true
+                }
+              }
+
+              if (removeFromOwnGroup) pluginTypes.delete(type)
+            }
+          }
+
+          let messages = []
+
+          for (let [idx, group] of typesPerPlugin.entries()) {
+            for (let type of group) {
+              let rules = matches[idx]
+                .map(([, rule]) => rule)
+                .flat()
+                .map((rule) =>
+                  rule
+                    .toString()
+                    .split('\n')
+                    .slice(1, -1) // Remove selector and closing '}'
+                    .map((line) => line.trim())
+                    .map((x) => `      ${x}`) // Re-indent
+                    .join('\n')
+                )
+                .join('\n\n')
+
+              messages.push(
+                `  Use \`${candidate.replace('[', `[${type}:`)}\` for \`${rules.trim()}\``
+              )
+              break
+            }
+          }
+
+          log.warn([
+            `The class \`${candidate}\` is ambiguous and matches multiple utilities.`,
+            ...messages,
+            `If this is content and not a class, replace it with \`${candidate
+              .replace('[', '&lsqb;')
+              .replace(']', '&rsqb;')}\` to silence this warning.`,
+          ])
+          continue
+        }
+      }
+
+      matches = matches.map((list) => list.filter((match) => isParsableNode(match[1])))
+    }
+
+    matches = matches.flat()
+    matches = Array.from(recordCandidates(matches, classCandidate))
+    matches = applyPrefix(matches, context)
+
+    if (important) {
+      matches = applyImportant(matches, classCandidate)
+    }
+
+    for (let variant of variants) {
+      matches = applyVariant(variant, matches, context)
+    }
+
+    for (let match of matches) {
+      match[1].raws.tailwind = { ...match[1].raws.tailwind, candidate }
+
+      // Apply final format selector
+      match = applyFinalFormat(match, { context, candidate })
+
+      // Skip rules with invalid selectors
+      // This will cause the candidate to be added to the "not class"
+      // cache skipping it entirely for future builds
+      if (match === null) {
+        continue
+      }
+
+      yield match
+    }
+  }
+}
+
+function applyFinalFormat(match, { context, candidate }) {
+  if (!match[0].collectedFormats) {
+    return match
+  }
+
+  let isValid = true
+  let finalFormat
+
+  try {
+    finalFormat = formatVariantSelector(match[0].collectedFormats, {
+      context,
+      candidate,
+    })
+  } catch {
+    // The format selector we produced is invalid
+    // This could be because:
+    // - A bug exists
+    // - A plugin introduced an invalid variant selector (ex: `addVariant('foo', '&;foo')`)
+    // - The user used an invalid arbitrary variant (ex: `[&;foo]:underline`)
+    // Either way the build will fail because of this
+    // We would rather that the build pass "silently" given that this could
+    // happen because of picking up invalid things when scanning content
+    // So we'll throw out the candidate instead
+
+    return null
+  }
+
+  let container = postcss.root({ nodes: [match[1].clone()] })
+
+  container.walkRules((rule) => {
+    if (inKeyframes(rule)) {
+      return
+    }
+
+    try {
+      let selector = finalizeSelector(rule.selector, finalFormat, {
+        candidate,
+        context,
+      })
+
+      // Finalize Selector determined that this candidate is irrelevant
+      // TODO: This elimination should happen earlier so this never happens
+      if (selector === null) {
+        rule.remove()
+        return
+      }
+
+      rule.selector = selector
+    } catch {
+      // If this selector is invalid we also want to skip it
+      // But it's likely that being invalid here means there's a bug in a plugin rather than too loosely matching content
+      isValid = false
+      return false
+    }
+  })
+
+  if (!isValid) {
+    return null
+  }
+
+  match[1] = container.nodes[0]
+
+  return match
+}
+
+function inKeyframes(rule) {
+  return rule.parent && rule.parent.type === 'atrule' && rule.parent.name === 'keyframes'
+}
+
+function getImportantStrategy(important) {
+  if (important === true) {
+    return (rule) => {
+      if (inKeyframes(rule)) {
+        return
+      }
+
+      rule.walkDecls((d) => {
+        if (d.parent.type === 'rule' && !inKeyframes(d.parent)) {
+          d.important = true
+        }
+      })
+    }
+  }
+
+  if (typeof important === 'string') {
+    return (rule) => {
+      if (inKeyframes(rule)) {
+        return
+      }
+
+      rule.selectors = rule.selectors.map((selector) => {
+        return applyImportantSelector(selector, important)
+      })
+    }
+  }
+}
+
+function generateRules(candidates, context, isSorting = false) {
+  let allRules = []
+  let strategy = getImportantStrategy(context.tailwindConfig.important)
+
+  for (let candidate of candidates) {
+    if (context.notClassCache.has(candidate)) {
+      continue
+    }
+
+    if (context.candidateRuleCache.has(candidate)) {
+      allRules = allRules.concat(Array.from(context.candidateRuleCache.get(candidate)))
+      continue
+    }
+
+    let matches = Array.from(resolveMatches(candidate, context))
+
+    if (matches.length === 0) {
+      context.notClassCache.add(candidate)
+      continue
+    }
+
+    context.classCache.set(candidate, matches)
+
+    let rules = context.candidateRuleCache.get(candidate) ?? new Set()
+    context.candidateRuleCache.set(candidate, rules)
+
+    for (const match of matches) {
+      let [{ sort, options }, rule] = match
+
+      if (options.respectImportant && strategy) {
+        let container = postcss.root({ nodes: [rule.clone()] })
+        container.walkRules(strategy)
+        rule = container.nodes[0]
+      }
+
+      // Note: We have to clone rules during sorting
+      // so we eliminate some shared mutable state
+      let newEntry = [sort, isSorting ? rule.clone() : rule]
+      rules.add(newEntry)
+      context.ruleCache.add(newEntry)
+      allRules.push(newEntry)
+    }
+  }
+
+  return allRules
+}
+
+function isArbitraryValue(input) {
+  return input.startsWith('[') && input.endsWith(']')
+}
+
+export { resolveMatches, generateRules }