Function fixed [src]

Constructs a Reader such that it will read from buffer and then end.

Prototype

pub fn fixed(buffer: []const u8) Reader

Parameters

buffer: []const u8

Example

 test fixed {
    var r: Reader = .fixed("a\x02");
    try testing.expect((try r.takeByte()) == 'a');
    try testing.expect((try r.takeEnum(enum(u8) {
        a = 0,
        b = 99,
        c = 2,
        d = 3,
    }, builtin.cpu.arch.endian())) == .c);
    try testing.expectError(error.EndOfStream, r.takeByte());
}

Source

  pub fn fixed(buffer: []const u8) Reader {
    return .{
        .vtable = &.{
            .stream = endingStream,
            .discard = endingDiscard,
            .readVec = endingReadVec,
            .rebase = endingRebase,
        },
        // This cast is safe because all potential writes to it will instead
        // return `error.EndOfStream`.
        .buffer = @constCast(buffer),
        .end = buffer.len,
        .seek = 0,
    };
}  