Function takeEnumNonexhaustive [src]

Reads an integer with the same size as the given nonexhaustive enum's tag type. Asserts the buffer was initialized with a capacity at least @sizeOf(Enum).

Prototype

pub fn takeEnumNonexhaustive(r: *Reader, comptime Enum: type, endian: std.builtin.Endian) Error!Enum

Parameters

r: *ReaderEnum: typeendian: std.builtin.Endian

Possible Errors

EndOfStream

ReadFailed

See the Reader implementation for detailed diagnostics.

Source

  pub fn takeEnumNonexhaustive(r: *Reader, comptime Enum: type, endian: std.builtin.Endian) Error!Enum {
    const info = @typeInfo(Enum).@"enum";
    comptime assert(!info.is_exhaustive);
    comptime assert(@bitSizeOf(info.tag_type) == @sizeOf(info.tag_type) * 8);
    return takeEnum(r, Enum, endian) catch |err| switch (err) {
        error.InvalidEnumTag => unreachable,
        else => |e| return e,
    };
}  