Zig 0.17.0-dev (Split by item)

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getOrPutConstantNoExtraAssumeCapacity

Builder.getOrPutConstantNoExtraAssumeCapacity

fn getOrPutConstantNoExtraAssumeCapacity(
    self: *Builder,
    item: Constant.Item,
) struct

File

lib/std/zig/llvm/Builder.zig:11957

Code

fn getOrPutConstantNoExtraAssumeCapacity(
    self: *Builder,
    item: Constant.Item,
) struct { new: bool, constant: Constant } {
    const Adapter = struct {
        builder: *const Builder,
        pub fn hash(_: @This(), key: Constant.Item) u32 {
            return @truncate(std.hash.Wyhash.hash(
                std.hash.int(@backingInt(key.tag)),
                std.mem.asBytes(&key.data),
            ));
        }
        pub fn eql(ctx: @This(), lhs_key: Constant.Item, _: void, rhs_index: usize) bool {
            return std.meta.eql(lhs_key, ctx.builder.constant_items.get(rhs_index));
        }
    };
    const gop = self.constant_map.getOrPutAssumeCapacityAdapted(item, Adapter{ .builder = self });
    if (!gop.found_existing) {
        gop.key_ptr.* = {};
        gop.value_ptr.* = {};
        self.constant_items.appendAssumeCapacity(item);
    }
    return .{ .new = !gop.found_existing, .constant = @fromBackingInt(@intCast(gop.index)) };
}