Lint and format src/runtime/internal/keyed_each.js

src/runtime/internal/keyed_each.js

@@ -22,13 +22,25 @@ export function fix_and_outro_and_destroy_block(block, lookup) {
 	outro_and_destroy_block(block, lookup);
 }
 /** @returns {any[]} */
-export function update_keyed_each(old_blocks, dirty, get_key, dynamic, ctx, list, lookup, node, destroy, create_each_block, next, get_context) {
+export function update_keyed_each(
+	old_blocks,
+	dirty,
+	get_key,
+	dynamic,
+	ctx,
+	list,
+	lookup,
+	node,
+	destroy,
+	create_each_block,
+	next,
+	get_context
+) {
 	let o = old_blocks.length;
 	let n = list.length;
 	let i = o;
 	const old_indexes = {};
-    while (i--)
+	while (i--) old_indexes[old_blocks[i].key] = i;
-        old_indexes[old_blocks[i].key] = i;
 	const new_blocks = [];
 	const new_lookup = new Map();
 	const deltas = new Map();
@@ -41,14 +53,12 @@ export function update_keyed_each(old_blocks, dirty, get_key, dynamic, ctx, list
 		if (!block) {
 			block = create_each_block(key, child_ctx);
 			block.c();
-        }
+		} else if (dynamic) {
-        else if (dynamic) {
 			// defer updates until all the DOM shuffling is done
 			updates.push(() => block.p(child_ctx, dirty));
 		}
 		new_lookup.set(key, (new_blocks[i] = block));
-        if (key in old_indexes)
+		if (key in old_indexes) deltas.set(key, Math.abs(i - old_indexes[key]));
-            deltas.set(key, Math.abs(i - old_indexes[key]));
 	}
 	const will_move = new Set();
 	const did_move = new Set();
@@ -70,34 +80,27 @@ export function update_keyed_each(old_blocks, dirty, get_key, dynamic, ctx, list
 			next = new_block.first;
 			o--;
 			n--;
-        }
+		} else if (!new_lookup.has(old_key)) {
-        else if (!new_lookup.has(old_key)) {
 			// remove old block
 			destroy(old_block, lookup);
 			o--;
-        }
+		} else if (!lookup.has(new_key) || will_move.has(new_key)) {
-        else if (!lookup.has(new_key) || will_move.has(new_key)) {
 			insert(new_block);
-        }
+		} else if (did_move.has(old_key)) {
-        else if (did_move.has(old_key)) {
 			o--;
-        }
+		} else if (deltas.get(new_key) > deltas.get(old_key)) {
-        else if (deltas.get(new_key) > deltas.get(old_key)) {
 			did_move.add(new_key);
 			insert(new_block);
-        }
+		} else {
-        else {
 			will_move.add(old_key);
 			o--;
 		}
 	}
 	while (o--) {
 		const old_block = old_blocks[o];
-        if (!new_lookup.has(old_block.key))
+		if (!new_lookup.has(old_block.key)) destroy(old_block, lookup);
-            destroy(old_block, lookup);
 	}
-    while (n)
+	while (n) insert(new_blocks[n - 1]);
-        insert(new_blocks[n - 1]);
 	run_all(updates);
 	return new_blocks;
 }
@@ -110,16 +113,15 @@ export function validate_each_keys(ctx, list, get_context, get_key) {
 			let value = '';
 			try {
 				value = `with value '${String(key)}' `;
-            }
+			} catch (e) {
-            catch (e) {
 				// can't stringify
 			}
-            throw new Error(`Cannot have duplicate keys in a keyed each: Keys at index ${keys.get(key)} and ${i} ${value}are duplicates`);
+			throw new Error(
+				`Cannot have duplicate keys in a keyed each: Keys at index ${keys.get(
+					key
+				)} and ${i} ${value}are duplicates`
+			);
 		}
 		keys.set(key, i);
 	}
 }
-
-
-
-