Zig 0.17.0-dev (Split by item)

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TypeDescriptor

ubsan_rt.TypeDescriptor

const TypeDescriptor = extern struct

File

lib/ubsan_rt.zig:16

Code

const TypeDescriptor = extern struct {
    kind: Kind,
    info: Info,
    // name: [?:0]u8

    const Kind = enum(u16) {
        integer = 0x0000,
        float = 0x0001,
        unknown = 0xFFFF,
    };

    const Info = extern union {
        integer: packed struct(u16) {
            signed: bool,
            bit_width: u15,
        },
        float: u16,
    };

    fn getIntegerSize(desc: TypeDescriptor) u64 {
        assert(desc.kind == .integer);
        const bit_width = desc.info.integer.bit_width;
        return @as(u64, 1) << @intCast(bit_width);
    }

    fn isSigned(desc: TypeDescriptor) bool {
        return desc.kind == .integer and desc.info.integer.signed;
    }

    fn getName(desc: *const TypeDescriptor) [:0]const u8 {
        return std.mem.span(@as([*:0]const u8, @ptrCast(desc)) + @sizeOf(TypeDescriptor));
    }
}