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Fix @enumToInt and @tagName for auto-numbered enums with signed tag type.

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IntegratedQuantum 2023-06-19 21:39:35 +02:00 committed by Veikka Tuominen
parent b77679039f
commit 3267eb3a28
2 changed files with 10 additions and 1 deletions
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6
src/InternPool.zig
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@ -448,7 +448,11 @@ pub const Key = union(enum) {
if (x >= self.names.len) return null; if (x >= self.names.len) return null;
return @intCast(u32, x); return @intCast(u32, x);
}, },
.i64, .big_int => return null, // out of range .i64 => |x| {
if (x >= self.names.len or x < 0) return null;
return @intCast(u32, x);
},
.big_int => return null, // out of range
.lazy_align, .lazy_size => unreachable, .lazy_align, .lazy_size => unreachable,
} }
} }

5
test/behavior/enum.zig
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@ -812,6 +812,11 @@ test "signed integer as enum tag" {
try expect(@intFromEnum(SignedEnum.A2) == 1); try expect(@intFromEnum(SignedEnum.A2) == 1);
} }
test "int to enum with signed tag type" {
const E = enum(i32) { a, b, c };
try expect(@intToEnum(E, 0) == .a);
}
test "enum with one member and custom tag type" { test "enum with one member and custom tag type" {
const E = enum(u2) { const E = enum(u2) {
One, One,