planning

node_modules/micromark/dist/util/chunked-splice.js

@@ -0,0 +1,38 @@
+'use strict'
+
+var splice = require('../constant/splice.js')
+
+// causes a stack overflow in V8 when trying to insert 100k items for instance.
+
+function chunkedSplice(list, start, remove, items) {
+  var end = list.length
+  var chunkStart = 0
+  var parameters // Make start between zero and `end` (included).
+
+  if (start < 0) {
+    start = -start > end ? 0 : end + start
+  } else {
+    start = start > end ? end : start
+  }
+
+  remove = remove > 0 ? remove : 0 // No need to chunk the items if there’s only a couple (10k) items.
+
+  if (items.length < 10000) {
+    parameters = Array.from(items)
+    parameters.unshift(start, remove)
+    splice.apply(list, parameters)
+  } else {
+    // Delete `remove` items starting from `start`
+    if (remove) splice.apply(list, [start, remove]) // Insert the items in chunks to not cause stack overflows.
+
+    while (chunkStart < items.length) {
+      parameters = items.slice(chunkStart, chunkStart + 10000)
+      parameters.unshift(start, 0)
+      splice.apply(list, parameters)
+      chunkStart += 10000
+      start += 10000
+    }
+  }
+}
+
+module.exports = chunkedSplice