Sha256: 6f284f85d99a5de2de244551612a0b2b3a4df2d139cf060e6f16e6b131cad5af
Contents?: true
Size: 806 Bytes
Versions: 7
Compression:
Stored size: 806 Bytes
Contents
module FormatParser::IOUtils
class InvalidRead < ArgumentError
end
def safe_read(io, n)
raise ArgumentError, 'Unbounded reads are not supported' if n.nil?
buf = io.read(n)
unless buf
raise InvalidRead, "We wanted to read #{n} bytes from the IO, but the IO is at EOF"
end
if buf.bytesize != n
raise InvalidRead, "We wanted to read #{n} bytes from the IO, but we got #{buf.bytesize} instead"
end
buf
end
def safe_skip(io, n)
raise ArgumentError, 'Unbounded skips are not supported' if n.nil?
return if n == 0
raise InvalidRead, 'Negative skips are not supported' if n < 0
if io.respond_to?(:pos)
io.seek(io.pos + n)
else
safe_read(io, n)
end
nil
end
### TODO: Some kind of built-in offset for the read
end
Version data entries
7 entries across 7 versions & 1 rubygems