planning

node_modules/@iarna/toml/parse-stream.js

@@ -0,0 +1,80 @@
+'use strict'
+module.exports = parseStream
+
+const stream = require('stream')
+const TOMLParser = require('./lib/toml-parser.js')
+
+function parseStream (stm) {
+  if (stm) {
+    return parseReadable(stm)
+  } else {
+    return parseTransform(stm)
+  }
+}
+
+function parseReadable (stm) {
+  const parser = new TOMLParser()
+  stm.setEncoding('utf8')
+  return new Promise((resolve, reject) => {
+    let readable
+    let ended = false
+    let errored = false
+    function finish () {
+      ended = true
+      if (readable) return
+      try {
+        resolve(parser.finish())
+      } catch (err) {
+        reject(err)
+      }
+    }
+    function error (err) {
+      errored = true
+      reject(err)
+    }
+    stm.once('end', finish)
+    stm.once('error', error)
+    readNext()
+
+    function readNext () {
+      readable = true
+      let data
+      while ((data = stm.read()) !== null) {
+        try {
+          parser.parse(data)
+        } catch (err) {
+          return error(err)
+        }
+      }
+      readable = false
+      /* istanbul ignore if */
+      if (ended) return finish()
+      /* istanbul ignore if */
+      if (errored) return
+      stm.once('readable', readNext)
+    }
+  })
+}
+
+function parseTransform () {
+  const parser = new TOMLParser()
+  return new stream.Transform({
+    objectMode: true,
+    transform (chunk, encoding, cb) {
+      try {
+        parser.parse(chunk.toString(encoding))
+      } catch (err) {
+        this.emit('error', err)
+      }
+      cb()
+    },
+    flush (cb) {
+      try {
+        this.push(parser.finish())
+      } catch (err) {
+        this.emit('error', err)
+      }
+      cb()
+    }
+  })
+}