directive inside blockquote with continuation results in error

[ChristianMurphy]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and couldn’t find anything (or linked relevant results below)

Affected packages and versions

micrmark-extension-directive 2.1.1

Link to runnable example

https://stackblitz.com/edit/node-4dutob?file=index.js

Steps to reproduce

Run

import { micromark } from "micromark";
import { directive, directiveHtml } from "micromark-extension-directive";

const content = `> :::directive
>
`;

console.log(
  micromark(content, {
    extensions: [directive()],
    htmlExtensions: [directiveHtml],
  })
);

Expected behavior

no error and the html text:

<blockquote>
</blockquote>

Actual behavior

with DEBUG="*"

  micromark main: passing `62` to start +0ms
  micromark enter: `blockQuote` +2ms
  micromark enter: `blockQuotePrefix` +0ms
  micromark enter: `blockQuoteMarker` +0ms
  micromark consume: `62` +0ms
  micromark exit: `blockQuoteMarker` +1ms
  micromark main: passing `32` to after +0ms
  micromark enter: `blockQuotePrefixWhitespace` +0ms
  micromark consume: `32` +0ms
  micromark exit: `blockQuotePrefixWhitespace` +0ms
  micromark exit: `blockQuotePrefix` +0ms
  micromark main: passing `58` to ok +0ms
  micromark main: passing `58` to ok +1ms
  micromark main: passing `58` to containerContinue +0ms
  micromark position: restore: `{"line":1,"column":3,"offset":2,"_index":0,"_bufferIndex":2}` +0ms
  micromark main: passing `58` to flowStart +0ms
  micromark enter: `chunkFlow` +1ms
  micromark consume: `58` +0ms
  micromark main: passing `58` to flowContinue +0ms
  micromark consume: `58` +0ms
  micromark main: passing `58` to flowContinue +0ms
  micromark consume: `58` +0ms
  micromark main: passing `100` to flowContinue +0ms
  micromark consume: `100` +0ms
  micromark main: passing `105` to flowContinue +0ms
  micromark consume: `105` +0ms
  micromark main: passing `114` to flowContinue +0ms
  micromark consume: `114` +0ms
  micromark main: passing `101` to flowContinue +1ms
  micromark consume: `101` +0ms
  micromark main: passing `99` to flowContinue +0ms
  micromark consume: `99` +0ms
  micromark main: passing `116` to flowContinue +0ms
  micromark consume: `116` +0ms
  micromark main: passing `105` to flowContinue +0ms
  micromark consume: `105` +0ms
  micromark main: passing `118` to flowContinue +0ms
  micromark consume: `118` +0ms
  micromark main: passing `101` to flowContinue +0ms
  micromark consume: `101` +0ms
  micromark main: passing `-4` to flowContinue +0ms
  micromark consume: `-4` +0ms
  micromark position: after eol: `{"line":2,"column":1,"offset":15,"_index":1,"_bufferIndex":-1}` +0ms
  micromark exit: `chunkFlow` +0ms
  micromark position: define skip: `{"line":1,"column":3,"offset":2,"_index":0,"_bufferIndex":-1}` +1ms
  micromark main: passing `58` to start +0ms
  micromark position: restore: `{"line":1,"column":3,"offset":2,"_index":0,"_bufferIndex":0}` +0ms
  micromark main: passing `58` to start +0ms
  micromark enter: `directiveContainer` +0ms
  micromark enter: `directiveContainerFence` +0ms
  micromark enter: `directiveContainerSequence` +0ms
  micromark consume: `58` +0ms
  micromark main: passing `58` to sequenceOpen +0ms
  micromark consume: `58` +0ms
  micromark main: passing `58` to sequenceOpen +1ms
  micromark consume: `58` +0ms
  micromark main: passing `100` to sequenceOpen +0ms
  micromark exit: `directiveContainerSequence` +0ms
  micromark enter: `directiveContainerName` +0ms
  micromark consume: `100` +0ms
  micromark main: passing `105` to name +0ms
  micromark consume: `105` +0ms
  micromark main: passing `114` to name +0ms
  micromark consume: `114` +0ms
  micromark main: passing `101` to name +0ms
  micromark consume: `101` +0ms
  micromark main: passing `99` to name +0ms
  micromark consume: `99` +1ms
  micromark main: passing `116` to name +0ms
  micromark consume: `116` +0ms
  micromark main: passing `105` to name +0ms
  micromark consume: `105` +0ms
  micromark main: passing `118` to name +0ms
  micromark consume: `118` +0ms
  micromark main: passing `101` to name +0ms
  micromark consume: `101` +0ms
  micromark main: passing `-4` to name +0ms
  micromark exit: `directiveContainerName` +0ms
  micromark exit: `directiveContainerFence` +0ms
  micromark enter: `lineEnding` +1ms
  micromark consume: `-4` +0ms
  micromark position: after eol: `{"line":2,"column":1,"offset":15,"_index":1,"_bufferIndex":-1}` +0ms
  micromark exit: `lineEnding` +0ms
  micromark main: passing `62` to start +0ms
  micromark enter: `blockQuotePrefix` +0ms
  micromark enter: `blockQuoteMarker` +0ms
  micromark consume: `62` +0ms
  micromark exit: `blockQuoteMarker` +0ms
  micromark main: passing `-4` to after +0ms
  micromark exit: `blockQuotePrefix` +0ms
  micromark main: passing `-4` to ok +1ms
  micromark main: passing `-4` to documentContinue +0ms
  micromark enter: `chunkFlow` +0ms
  micromark consume: `-4` +0ms
  micromark position: after eol: `{"line":3,"column":1,"offset":17,"_index":3,"_bufferIndex":-1}` +0ms
  micromark exit: `chunkFlow` +0ms
  micromark position: define skip: `{"line":2,"column":2,"offset":16,"_index":2,"_bufferIndex":-1}` +0ms
  micromark main: passing `-4` to lineStart +0ms
  micromark main: passing `-4` to contentStart +0ms
  micromark enter: `directiveContainerContent` +0ms
  micromark enter: `directiveContainerFence` +0ms
  micromark enter: `directiveContainerSequence` +0ms
  micromark position: restore: `{"line":2,"column":2,"offset":16,"_index":2,"_bufferIndex":-1}` +1ms
  micromark main: passing `-4` to chunkStart +0ms
  micromark enter: `chunkDocument` +0ms
  micromark enter: `lineEnding` +0ms
  micromark consume: `-4` +0ms
  micromark position: after eol: `{"line":3,"column":1,"offset":17,"_index":2,"_bufferIndex":-1}` +0ms
  micromark exit: `lineEnding` +0ms
  micromark main: passing `null` to start +0ms
  micromark position: restore: `{"line":3,"column":1,"offset":17,"_index":4,"_bufferIndex":-1}` +0ms
  micromark main: passing `null` to nok +0ms
  micromark position: restore: `{"line":3,"column":1,"offset":17,"_index":4,"_bufferIndex":-1}` +0ms
  micromark main: passing `null` to checkNewContainers +0ms
  micromark position: restore: `{"line":3,"column":1,"offset":17,"_index":4,"_bufferIndex":-1}` +0ms
  micromark main: passing `null` to thereIsNoNewContainer +1ms
  micromark main: passing `null` to lineStart +0ms
  micromark position: restore: `{"line":2,"column":2,"offset":16,"_index":2,"_bufferIndex":-1}` +0ms
  micromark main: passing `-4` to lineAfter +0ms

with --conditions=development

/node_modules/uvu/assert/index.mjs:33
	throw new Assertion({ actual, expects, operator, message, details, generated: !msg });
	      ^

Assertion: expected non-empty token (`chunkDocument`)
    at assert (/node_modules/uvu/assert/index.mjs:33:8)
    at ok (/node_modules/uvu/assert/index.mjs:37:2)
    at Object.exit (/node_modules/micromark/dev/lib/create-tokenizer.js:302:5)
    at lineAfter (/node_modules/micromark-extension-directive/dev/lib/directive-container.js:184:23)
    at go (/node_modules/micromark/dev/lib/create-tokenizer.js:218:13)
    at main (/node_modules/micromark/dev/lib/create-tokenizer.js:201:9)
    at Object.write (/node_modules/micromark/dev/lib/create-tokenizer.js:124:5)
    at closeFlow (/node_modules/micromark/dev/lib/initialize/document.js:405:15)
    at flowStart (/node_modules/micromark/dev/lib/initialize/document.js:225:22)
    at thereIsNoNewContainer (/node_modules/micromark/dev/lib/initialize/document.js:192:12) {
  code: 'ERR_ASSERTION',
  details: false,
  generated: false,
  operator: 'ok',
  expects: true,
  actual: false
}

Node.js v17.2.0

and without conditions

/node_modules/micromark/lib/create-tokenizer.js:514
    view = [chunks[startIndex].slice(startBufferIndex, endBufferIndex)]
                               ^

TypeError: chunks[startIndex].slice is not a function
    at sliceChunks (/node_modules/micromark/lib/create-tokenizer.js:514:32)
    at Object.sliceStream (/node_modules/micromark/lib/create-tokenizer.js:154:12)
    at subcontent (/node_modules/micromark-util-subtokenize/index.js:172:24)
    at subtokenize (/node_modules/micromark-util-subtokenize/index.js:82:30)
    at postprocess (/node_modules/micromark/lib/postprocess.js:11:11)
    at micromark (/node_modules/micromark/index.js:36:7)
    at /test.mjs:9:3
    at ModuleJob.run (node:internal/modules/esm/module_job:195:25)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:331:24)

Node.js v17.2.0

Runtime

Node v16

Package manager

npm v7

OS

Linux

Build and bundle tools

No response