A helper type for reading from memory files as a stream, referencing original memory.

slice.zig

fn Slice(comptime T: anytype) type {
    return struct {
        const Self = @This();
        const Error = error{EOF};
        left: T,
        pub fn take(self: *Self, n: anytype) Error!@TypeOf(self.left[0..n]) {
            if (self.left.len < n) return Error.EOF;
            defer self.left = self.left[n..];
            return self.left[0..n];
        }
        pub fn byte(self: *Self) Error!u8 {
            if (self.left.len < 1) return Error.EOF;
            defer self.left = self.left[1..];
            return self.left[0];
        }
    };
}