🎉 initiate project *astro_rewrite*

node_modules/micromark-extension-mdxjs-esm/dev/lib/syntax.d.ts

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+/**
+ * Create an extension for `micromark` to enable MDX ESM syntax.
+ *
+ * @param {Options} options
+ *   Configuration (required).
+ * @returns {Extension}
+ *   Extension for `micromark` that can be passed in `extensions` to enable MDX
+ *   ESM syntax.
+ */
+export function mdxjsEsm(options: Options): Extension
+export type Acorn = import('micromark-util-events-to-acorn').Acorn
+export type AcornOptions = import('micromark-util-events-to-acorn').AcornOptions
+export type Extension = import('micromark-util-types').Extension
+export type State = import('micromark-util-types').State
+export type TokenizeContext = import('micromark-util-types').TokenizeContext
+export type Tokenizer = import('micromark-util-types').Tokenizer
+/**
+ * Configuration (required).
+ */
+export type Options = {
+  /**
+   *   Acorn parser to use (required).
+   */
+  acorn: Acorn
+  /**
+   * Configuration for acorn (default: `{ecmaVersion: 2020, locations: true,
+   * sourceType: 'module'}`).
+   * all fields except `locations` can be set
+   */
+  acornOptions?: AcornOptions | null | undefined
+  /**
+   * Whether to add `estree` fields to tokens with results from acorn.
+   */
+  addResult?: boolean | null | undefined
+}

node_modules/micromark-extension-mdxjs-esm/dev/lib/syntax.js

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+/**
+ * @typedef {import('micromark-util-events-to-acorn').Acorn} Acorn
+ * @typedef {import('micromark-util-events-to-acorn').AcornOptions} AcornOptions
+ * @typedef {import('micromark-util-types').Extension} Extension
+ * @typedef {import('micromark-util-types').State} State
+ * @typedef {import('micromark-util-types').TokenizeContext} TokenizeContext
+ * @typedef {import('micromark-util-types').Tokenizer} Tokenizer
+ */
+
+/**
+ * @typedef Options
+ *   Configuration (required).
+ * @property {Acorn} acorn
+ *   Acorn parser to use (required).
+ * @property {AcornOptions | null | undefined} [acornOptions]
+ *   Configuration for acorn (default: `{ecmaVersion: 2020, locations: true,
+ *   sourceType: 'module'}`).
+ *   all fields except `locations` can be set
+ * @property {boolean | null | undefined} [addResult=false]
+ *   Whether to add `estree` fields to tokens with results from acorn.
+ */
+
+import {ok as assert} from 'uvu/assert'
+import {blankLine} from 'micromark-core-commonmark'
+import {asciiAlpha, markdownLineEnding} from 'micromark-util-character'
+import {eventsToAcorn} from 'micromark-util-events-to-acorn'
+import {codes} from 'micromark-util-symbol/codes.js'
+import {types} from 'micromark-util-symbol/types.js'
+import {positionFromEstree} from 'unist-util-position-from-estree'
+import {VFileMessage} from 'vfile-message'
+
+const blankLineBefore = {tokenize: tokenizeNextBlank, partial: true}
+
+const allowedAcornTypes = new Set([
+  'ExportAllDeclaration',
+  'ExportDefaultDeclaration',
+  'ExportNamedDeclaration',
+  'ImportDeclaration'
+])
+
+/**
+ * Create an extension for `micromark` to enable MDX ESM syntax.
+ *
+ * @param {Options} options
+ *   Configuration (required).
+ * @returns {Extension}
+ *   Extension for `micromark` that can be passed in `extensions` to enable MDX
+ *   ESM syntax.
+ */
+export function mdxjsEsm(options) {
+  const exportImportConstruct = {tokenize: tokenizeExportImport, concrete: true}
+
+  if (!options || !options.acorn || !options.acorn.parse) {
+    throw new Error('Expected an `acorn` instance passed in as `options.acorn`')
+  }
+
+  const acorn = options.acorn
+  const acornOptions = Object.assign(
+    {ecmaVersion: 2020, sourceType: 'module'},
+    options.acornOptions
+  )
+
+  return {
+    flow: {
+      [codes.lowercaseE]: exportImportConstruct,
+      [codes.lowercaseI]: exportImportConstruct
+    }
+  }
+
+  /**
+   * @this {TokenizeContext}
+   * @type {Tokenizer}
+   */
+  function tokenizeExportImport(effects, ok, nok) {
+    const self = this
+    /** @type {Array<string>} */
+    const definedModuleSpecifiers =
+      self.parser.definedModuleSpecifiers ||
+      (self.parser.definedModuleSpecifiers = [])
+    const eventStart = this.events.length + 1 // Add the main `mdxjsEsm` token
+    let buffer = ''
+
+    return self.interrupt ? nok : start
+
+    /**
+     * Start of MDX ESM.
+     *
+     * ```markdown
+     * > | import a from 'b'
+     *     ^
+     * ```
+     *
+     * @type {State}
+     */
+    function start(code) {
+      assert(
+        code === codes.lowercaseE || code === codes.lowercaseI,
+        'expected `e` or `i`'
+      )
+
+      // Only at the start of a line, not at whitespace or in a container.
+      if (self.now().column > 1) return nok(code)
+
+      effects.enter('mdxjsEsm')
+      effects.enter('mdxjsEsmData')
+      effects.consume(code)
+      // eslint-disable-next-line unicorn/prefer-code-point
+      buffer += String.fromCharCode(code)
+      return word
+    }
+
+    /**
+     * In keyword.
+     *
+     * ```markdown
+     * > | import a from 'b'
+     *     ^^^^^^
+     * ```
+     *
+     * @type {State}
+     */
+    function word(code) {
+      if (asciiAlpha(code)) {
+        effects.consume(code)
+        // @ts-expect-error: definitely a number.
+        // eslint-disable-next-line unicorn/prefer-code-point
+        buffer += String.fromCharCode(code)
+        return word
+      }
+
+      if (
+        (buffer === 'import' || buffer === 'export') &&
+        code === codes.space
+      ) {
+        effects.consume(code)
+        return inside
+      }
+
+      return nok(code)
+    }
+
+    /**
+     * In data.
+     *
+     * ```markdown
+     * > | import a from 'b'
+     *           ^
+     * ```
+     *
+     * @type {State}
+     */
+    function inside(code) {
+      if (code === codes.eof || markdownLineEnding(code)) {
+        effects.exit('mdxjsEsmData')
+        return lineStart(code)
+      }
+
+      effects.consume(code)
+      return inside
+    }
+
+    /**
+     * At line ending.
+     *
+     * ```markdown
+     * > | import a from 'b'
+     *                      ^
+     *   | export {a}
+     * ```
+     *
+     * @type {State}
+     */
+    function lineStart(code) {
+      if (code === codes.eof) {
+        return atEnd(code)
+      }
+
+      if (markdownLineEnding(code)) {
+        return effects.check(blankLineBefore, atEnd, continuationStart)(code)
+      }
+
+      effects.enter('mdxjsEsmData')
+      return inside(code)
+    }
+
+    /**
+     * At line ending that continues.
+     *
+     * ```markdown
+     * > | import a from 'b'
+     *                      ^
+     *   | export {a}
+     * ```
+     *
+     * @type {State}
+     */
+    function continuationStart(code) {
+      assert(markdownLineEnding(code))
+      effects.enter(types.lineEnding)
+      effects.consume(code)
+      effects.exit(types.lineEnding)
+      return lineStart
+    }
+
+    /**
+     * At end of line (blank or eof).
+     *
+     * ```markdown
+     * > | import a from 'b'
+     *                      ^
+     * ```
+     *
+     * @type {State}
+     */
+    function atEnd(code) {
+      const result = eventsToAcorn(self.events.slice(eventStart), {
+        acorn,
+        acornOptions,
+        prefix:
+          definedModuleSpecifiers.length > 0
+            ? 'var ' + definedModuleSpecifiers.join(',') + '\n'
+            : ''
+      })
+
+      if (result.error) {
+        // There’s an error, which could be solved with more content, and there
+        // is more content.
+        if (code !== codes.eof && result.swallow) {
+          return continuationStart(code)
+        }
+
+        throw new VFileMessage(
+          'Could not parse import/exports with acorn: ' + String(result.error),
+          {
+            line: result.error.loc.line,
+            column: result.error.loc.column + 1,
+            offset: result.error.pos
+          },
+          'micromark-extension-mdxjs-esm:acorn'
+        )
+      }
+
+      assert(result.estree, 'expected `estree` to be defined')
+
+      // Remove the `VariableDeclaration`.
+      if (definedModuleSpecifiers.length > 0) {
+        const declaration = result.estree.body.shift()
+        assert(declaration)
+        assert(declaration.type === 'VariableDeclaration')
+      }
+
+      let index = -1
+
+      while (++index < result.estree.body.length) {
+        const node = result.estree.body[index]
+
+        if (!allowedAcornTypes.has(node.type)) {
+          throw new VFileMessage(
+            'Unexpected `' +
+              node.type +
+              '` in code: only import/exports are supported',
+            positionFromEstree(node),
+            'micromark-extension-mdxjs-esm:non-esm'
+          )
+        }
+
+        // Otherwise, when we’re not interrupting (hacky, because `interrupt` is
+        // used to parse containers and “sniff” if this is ESM), collect all the
+        // local values that are imported.
+        if (node.type === 'ImportDeclaration' && !self.interrupt) {
+          let index = -1
+
+          while (++index < node.specifiers.length) {
+            const specifier = node.specifiers[index]
+            definedModuleSpecifiers.push(specifier.local.name)
+          }
+        }
+      }
+
+      Object.assign(
+        effects.exit('mdxjsEsm'),
+        options.addResult ? {estree: result.estree} : undefined
+      )
+
+      return ok(code)
+    }
+  }
+}
+
+/** @type {Tokenizer} */
+function tokenizeNextBlank(effects, ok, nok) {
+  return start
+
+  /**
+   * @type {State}
+   */
+  function start(code) {
+    assert(markdownLineEnding(code))
+    effects.enter(types.lineEndingBlank)
+    effects.consume(code)
+    effects.exit(types.lineEndingBlank)
+    return effects.attempt(blankLine, ok, nok)
+  }
+}