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terminal/new: style set removal

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This commit is contained in:
Mitchell Hashimoto
2024-02-18 10:01:12 -08:00
parent fba9d5ab61
commit 24354d8392
1 changed files with 19 additions and 0 deletions
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19
src/terminal/new/style.zig
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@ -146,6 +146,21 @@ pub const Set = struct {
const offset = id_map.get(id) orelse return null;
return @ptrCast(offset.ptr(base));
}
/// Remove a style by its id.
pub fn remove(self: *Set, base: anytype, id: Id) void {
// Lookup by ID, if it doesn't exist then we return. We use
// getEntry so that we can make removal faster later by using
// the entry's key pointer.
var id_map = self.id_map.map(base);
const id_entry = id_map.getEntry(id) orelse return;
var style_map = self.styles.map(base);
const style_ptr: *Style = @ptrCast(id_entry.value_ptr.ptr(base));
id_map.removeByPtr(id_entry.key_ptr);
style_map.removeByPtr(style_ptr);
}
};
/// Metadata about a style. This is used to track the reference count
@ -190,4 +205,8 @@ test "Set basic usage" {
const v2 = set.lookupId(buf, meta.id).?;
try testing.expectEqual(v, v2);
}
// Removal
set.remove(buf, meta.id);
try testing.expect(set.lookupId(buf, meta.id) == null);
}