tiny.preserves.ValueKind

1/// A value's kind: its group and, for an atom, a compound or a pattern, which one. Code that2/// switches on a value's kind reads this from `kind`. `kind` returns it for any value.3pub const ValueKind = union(ValueKindTag) {4    /// Which of the six atom kinds the value is.5    atomic: AtomClass,6    /// Which of the four compound kinds the value is.7    compound: CompoundClass,8    /// Marks an embedded value, which has no subkind.9    embedded,10    /// Which of the four kinds of pattern the value is.11    pattern: PatternFormClass,1213    /// Returns whether two kinds are in the same group and, within it, the same kind. `Value.eql`14    /// calls it to check two values' kinds before their contents.15    pub fn eql(a: ValueKind, b: ValueKind) bool {16        return switch (a) {17            .atomic => |ac| switch (b) {18                .atomic => |bc| ac == bc,19                else => false,20            },21            .compound => |ac| switch (b) {22                .compound => |bc| ac == bc,23                else => false,24            },25            .embedded => switch (b) {26                .embedded => true,27                else => false,28            },29            .pattern => |ac| switch (b) {30                .pattern => |bc| ac == bc,31                else => false,32            },33        };34    }35};

1pub const ValueKind = value.ValueKind;