// 901_enum_corpus — computed enum-member value-expr gap fixture for
// the 901 asserttyped net (class E). Each computed member leaves its
// value-expr (N_BIN / N_UN / sibling-backref N_IDENT) type_=nil until
// the checker's stampenumvals fills the subtree at the enum's
// underlying type. Mirrors the 759_check_enum_fold rows plus the 994
// in-source `RW = R | W` shape (enum u8). Literal + auto-increment
// members never warned (resolvewalk's post-order exprtype stamps the
// leaf), so the literal-only enum is a control: it must stay 0.
package main;

type sib = enum i32 { A = 7, B = A };
type un  = enum i32 { NEG = -7, R = NEG + 14 };
type unl = enum i32 { TIL = ~(-8), PLU = +7 };
type arith = enum i32 {
	A = 3,
	ADD = A + 4,
	SUB = A - 1,
	MUL = A * 2,
	DIV = A / 3,
	MOD = A % 2,
};
type bits = enum i32 {
	A = 5,
	AND = A & 3,
	IOR = A | 2,
	XOR = A ^ 1,
	SHL = A << 2,
	SHR = A >> 1,
};
type chain = enum i32 { A = 1, B = A + 1, C = B + 1, D = C + 4 };
type mode = enum u8 { RD = 1u8, WR = 2u8, RW = RD | WR };

type lit = enum i32 { X = 7, Y = 9, Z = 11 };

fn main() i32 = {
	return chain.D: i32 + mode.RW: i32;
};