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fix ArrayHashMap setKey when store_hash=true

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Andrew Kelley 2025-02-21 16:41:49 -08:00
parent f87b443af1
commit 6fe1993d80
1 changed files with 19 additions and 3 deletions
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22
lib/std/array_hash_map.zig
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@ -1351,7 +1351,7 @@ pub fn ArrayHashMapUnmanaged(
pub fn setKeyContext(self: *Self, gpa: Allocator, index: usize, new_key: K, ctx: Context) Oom!void {
const key_ptr = &self.entries.items(.key)[index];
key_ptr.* = new_key;
if (store_hash) self.entries.items(.hash)[index].* = checkedHash(ctx, key_ptr.*);
if (store_hash) self.entries.items(.hash)[index] = checkedHash(ctx, key_ptr.*);
try rebuildIndex(self, gpa, undefined);
}
@ -2550,10 +2550,26 @@ test "0 sized key and 0 sized value" {
try testing.expectEqual(map.get(0), null);
}
test "setKey" {
test "setKey storehash true" {
const gpa = std.testing.allocator;
var map: AutoArrayHashMapUnmanaged(i32, i32) = .empty;
var map: ArrayHashMapUnmanaged(i32, i32, AutoContext(i32), true) = .empty;
defer map.deinit(gpa);
try map.put(gpa, 12, 34);
try map.put(gpa, 56, 78);
try map.setKey(gpa, 0, 42);
try testing.expectEqual(2, map.count());
try testing.expectEqual(false, map.contains(12));
try testing.expectEqual(34, map.get(42));
try testing.expectEqual(78, map.get(56));
}
test "setKey storehash false" {
const gpa = std.testing.allocator;
var map: ArrayHashMapUnmanaged(i32, i32, AutoContext(i32), false) = .empty;
defer map.deinit(gpa);
try map.put(gpa, 12, 34);