Module: Solana::Ruby::Kit::Codecs::Numbers

Extended by:
T::Sig
Included in:
Solana::Ruby::Kit::Codecs
Defined in:
lib/solana/ruby/kit/codecs/numbers.rb

Overview

Numeric codecs — mirrors @solana/codecs-numbers. All pack/unpack directives follow Ruby’s Array#pack notation. Default endian is :little (Solana is always little-endian on-chain).

Fixed sizes (bytes):

u8/i8 = 1, u16/i16 = 2, u32/i32 = 4, u64/i64 = 8,
u128/i128 = 16, f32 = 4, f64 = 8

Class Method Summary collapse

Class Method Details

.compact_u16_codec ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 185

def compact_u16_codec
  enc = Encoder.new do |v|
    n = Kernel.Integer(v)
    Kernel.raise ArgumentError, "compact_u16 value out of range: #{n}" if n > 0xFFFF || n.negative?

    bytes = []
    Kernel.loop do
      low7 = n & 0x7F
      n >>= 7
      bytes << (n.positive? ? (low7 | 0x80) : low7)
      break if n.zero?
    end
    bytes.pack('C*')
  end
  dec = Decoder.new do |bytes, offset|
    b  = bytes.b
    n  = 0
    shift = 0
    consumed = 0
    Kernel.loop do
      byte = b.byteslice(offset + consumed, 1)&.unpack1('C') || 0
      consumed += 1
      n |= (byte & 0x7F) << shift
      shift += 7
      break if (byte & 0x80).zero?
    end
    [n, consumed]
  end
  Codec.new(enc, dec)
end

.f32_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 161

def f32_codec(endian: :little)
  dir = endian == :little ? 'e' : 'g'
  enc = Encoder.new(fixed_size: 4) { |v| [Kernel.Float(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 4) do |bytes, offset|
    [bytes.b.byteslice(offset, 4)&.unpack1(dir) || 0.0, 4]
  end
  Codec.new(enc, dec)
end

.f64_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 171

def f64_codec(endian: :little)
  dir = endian == :little ? 'E' : 'G'
  enc = Encoder.new(fixed_size: 8) { |v| [Kernel.Float(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 8) do |bytes, offset|
    [bytes.b.byteslice(offset, 8)&.unpack1(dir) || 0.0, 8]
  end
  Codec.new(enc, dec)
end

.i128_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 128

def i128_codec(endian: :little)
  enc = Encoder.new(fixed_size: 16) do |v|
    n    = Kernel.Integer(v)
    # Two's complement for negative numbers
    n += (1 << 128) if n.negative?
    if endian == :little
      bytes = []
      16.times { bytes << (n & 0xFF); n >>= 8 }
      bytes.pack('C*')
    else
      bytes = []
      16.times { bytes.unshift(n & 0xFF); n >>= 8 }
      bytes.pack('C*')
    end
  end
  dec = Decoder.new(fixed_size: 16) do |bytes, offset|
    slice = bytes.b.byteslice(offset, 16) || ("\x00" * 16).b
    arr   = T.cast(T.unsafe(slice).unpack('C*'), T::Array[Integer])
    n = if endian == :little
          arr.reverse.reduce(0) { |acc, b| (acc << 8) | b }
        else
          arr.reduce(0) { |acc, b| (acc << 8) | b }
        end
    # Convert from unsigned to signed 128-bit
    n -= (1 << 128) if n >= (1 << 127)
    [n, 16]
  end
  Codec.new(enc, dec)
end

.i16_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 98

def i16_codec(endian: :little)
  dir = endian == :little ? 's<' : 's>'
  enc = Encoder.new(fixed_size: 2) { |v| [Kernel.Integer(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 2) do |bytes, offset|
    [bytes.b.byteslice(offset, 2)&.unpack1(dir) || 0, 2]
  end
  Codec.new(enc, dec)
end

.i32_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 108

def i32_codec(endian: :little)
  dir = endian == :little ? 'l<' : 'l>'
  enc = Encoder.new(fixed_size: 4) { |v| [Kernel.Integer(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 4) do |bytes, offset|
    [bytes.b.byteslice(offset, 4)&.unpack1(dir) || 0, 4]
  end
  Codec.new(enc, dec)
end

.i64_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 118

def i64_codec(endian: :little)
  dir = endian == :little ? 'q<' : 'q>'
  enc = Encoder.new(fixed_size: 8) { |v| [Kernel.Integer(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 8) do |bytes, offset|
    [bytes.b.byteslice(offset, 8)&.unpack1(dir) || 0, 8]
  end
  Codec.new(enc, dec)
end

.i8_codec ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 89

def i8_codec
  enc = Encoder.new(fixed_size: 1) { |v| [Kernel.Integer(v)].pack('c') }
  dec = Decoder.new(fixed_size: 1) do |bytes, offset|
    [bytes.b.byteslice(offset, 1)&.unpack1('c') || 0, 1]
  end
  Codec.new(enc, dec)
end

.u128_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 60

def u128_codec(endian: :little)
  enc = Encoder.new(fixed_size: 16) do |v|
    n = Kernel.Integer(v)
    if endian == :little
      bytes = []
      16.times { bytes << (n & 0xFF); n >>= 8 }
      bytes.pack('C*')
    else
      bytes = []
      16.times { bytes.unshift(n & 0xFF); n >>= 8 }
      bytes.pack('C*')
    end
  end
  dec = Decoder.new(fixed_size: 16) do |bytes, offset|
    slice = bytes.b.byteslice(offset, 16) || ("\x00" * 16).b
    arr   = T.cast(T.unsafe(slice).unpack('C*'), T::Array[Integer])
    n = if endian == :little
          arr.reverse.reduce(0) { |acc, b| (acc << 8) | b }
        else
          arr.reduce(0) { |acc, b| (acc << 8) | b }
        end
    [n, 16]
  end
  Codec.new(enc, dec)
end

.u16_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 30

def u16_codec(endian: :little)
  dir = endian == :little ? 'v' : 'n'
  enc = Encoder.new(fixed_size: 2) { |v| [Kernel.Integer(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 2) do |bytes, offset|
    [bytes.b.byteslice(offset, 2)&.unpack1(dir) || 0, 2]
  end
  Codec.new(enc, dec)
end

.u32_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 40

def u32_codec(endian: :little)
  dir = endian == :little ? 'V' : 'N'
  enc = Encoder.new(fixed_size: 4) { |v| [Kernel.Integer(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 4) do |bytes, offset|
    [bytes.b.byteslice(offset, 4)&.unpack1(dir) || 0, 4]
  end
  Codec.new(enc, dec)
end

.u64_codec(endian: :little) ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 50

def u64_codec(endian: :little)
  dir = endian == :little ? 'Q<' : 'Q>'
  enc = Encoder.new(fixed_size: 8) { |v| [Kernel.Integer(v)].pack(dir) }
  dec = Decoder.new(fixed_size: 8) do |bytes, offset|
    [bytes.b.byteslice(offset, 8)&.unpack1(dir) || 0, 8]
  end
  Codec.new(enc, dec)
end

.u8_codec ⇒ Object 



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# File 'lib/solana/ruby/kit/codecs/numbers.rb', line 21

def u8_codec
  enc = Encoder.new(fixed_size: 1) { |v| [Kernel.Integer(v)].pack('C') }
  dec = Decoder.new(fixed_size: 1) do |bytes, offset|
    [bytes.b.byteslice(offset, 1)&.unpack1('C') || 0, 1]
  end
  Codec.new(enc, dec)
end