class Web3::Hpb::Abi::Type

Attributes

base[RW]

Public Class Methods

new(base, sub, dims) click to toggle source
# File lib/web3/hpb/abi/type.rb, line 54
def initialize(base, sub, dims)
  @base = base
  @sub = sub
  @dims = dims
end
parse(type) click to toggle source
# File lib/web3/hpb/abi/type.rb, line 10
def parse(type)
  _, base, sub, dimension = /([a-z]*)([0-9]*x?[0-9]*)((\[[0-9]*\])*)/.match(type).to_a

  dims = dimension.scan(/\[[0-9]*\]/)
  raise ParseError, "Unknown characters found in array declaration" if dims.join != dimension

  case base
  when ''
    return parse 'address'
  when 'string'
    raise ParseError, "String type must have no suffix or numerical suffix" unless sub.empty?
  when 'uint', 'int'
    raise ParseError, "Integer type must have numerical suffix" unless sub =~ /\A[0-9]+\z/

    size = sub.to_i
    raise ParseError, "Integer size out of bounds" unless size >= 8 && size <= 256
    raise ParseError, "Integer size must be multiple of 8" unless size % 8 == 0
  when 'fixed', 'ufixed'
    raise ParseError, "Fixed type must have suffix of form <high>x<low>, e.g. 128x128" unless sub =~ /\A[0-9]+x[0-9]+\z/

    high, low = sub.split('x').map(&:to_i)
    total = high + low
    raise ParseError, "Fixed size out of bounds (max 32 bytes)" unless total >= 8 && total <= 256
    raise ParseError, "Fixed high/low sizes must be multiples of 8" unless high % 8 == 0 && low % 8 == 0
  when 'hash'
    raise ParseError, "Hash type must have numerical suffix" unless sub =~ /\A[0-9]+\z/
  when 'address'
    raise ParseError, "Address cannot have suffix" unless sub.empty?
  when 'bool'
    raise ParseError, "Bool cannot have suffix" unless sub.empty?
  else
    raise ParseError, "Unrecognized type base: #{base}"
  end

  new(base, sub, dims.map{ |x| x[1...-1].to_i })
end
size_type() click to toggle source
# File lib/web3/hpb/abi/type.rb, line 47
def size_type
  @size_type ||= new('uint', 256, [])
end

Public Instance Methods

==(another_type) click to toggle source
# File lib/web3/hpb/abi/type.rb, line 60
def ==(another_type)
  base == another_type.base && sub == another_type.sub && dims == another_type.dims
end
dynamic?() click to toggle source
# File lib/web3/hpb/abi/type.rb, line 81
def dynamic?
  size.nil?
end
size() click to toggle source
# File lib/web3/hpb/abi/type.rb, line 64
def size
  @size ||= if dims.empty?
              if %w(string bytes).include?(base) && sub.empty?
                nil
              else
                32
              end
            else
              if dims.last == 0 # 0 for dynamic array []
                nil
              else
                subtype.dynamic? ? nil : dims.last * subtype.size
              end
            end

end
subtype() click to toggle source
# File lib/web3/hpb/abi/type.rb, line 85
def subtype
  @subtype ||= self.class.new(base, sub, dims[0...-1])
end