Class: ScaleRb::Metadata::Registry

Inherits:
Object
  • Object
show all
Includes:
Types
Defined in:
lib/scale_rb/metadata/registry.rb

Constant Summary

Constants included from Types

Types::DecodeResult, Types::HashMap, Types::Hex, Types::PortableType, Types::Primitive, Types::Registry, Types::Ti, Types::TypedArray, Types::U8, Types::U8Array, Types::UnsignedInteger, Types::VariantKind

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(old_types) ⇒ Registry

% initialize

Hash<Symbol, Any> -> void



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# File 'lib/scale_rb/metadata/registry.rb', line 25

def initialize(old_types)
  @old_types = old_types
  @lookup = {}
  @keys = {}
  @types = []

  build()
end

Instance Attribute Details

#keys ⇒ Object (readonly)

% keys

Integer -> String



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# File 'lib/scale_rb/metadata/registry.rb', line 17

def keys
  @keys
end

#lookup ⇒ Object (readonly)

Map name to index of type in ‘types` array

% lookup

String -> Integer



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# File 'lib/scale_rb/metadata/registry.rb', line 14

def lookup
  @lookup
end

#old_types ⇒ Object (readonly)

Returns the value of attribute old_types.



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# File 'lib/scale_rb/metadata/registry.rb', line 22

def old_types
  @old_types
end

#types ⇒ Object (readonly)

% types

Array<PortableType>



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# File 'lib/scale_rb/metadata/registry.rb', line 20

def types
  @types
end

Instance Method Details

#[](identifier) ⇒ Object 



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# File 'lib/scale_rb/metadata/registry.rb', line 40

def [](identifier)
  if identifier.is_a?(::Integer)
    @types[identifier]
  elsif identifier.is_a?(::String)
    @types[use(identifier)]
  else
    raise "Unknown identifier type: #{identifier.class}"
  end
end

#as_primitive(name) ⇒ Object

% as_primitive

String -> PrimitiveType | nil



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# File 'lib/scale_rb/metadata/registry.rb', line 128

def as_primitive(name)
  case name.downcase
  when /^i\d+$/
    PrimitiveType.new(primitive: "I#{name[1..]}".to_sym)
  when /^u\d+$/
    PrimitiveType.new(primitive: "U#{name[1..]}".to_sym)
  when /^bool$/
    PrimitiveType.new(primitive: :Bool)
  when /^str$/, /^text$/
    PrimitiveType.new(primitive: :Str)
  else
    nil
  end
end

#build ⇒ Object 



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# File 'lib/scale_rb/metadata/registry.rb', line 34

def build()
  @old_types.keys.each do |name|
    use(name.to_s)
  end
end

#build_from_definition(name, definition) ⇒ Object

% build_from_definition

String -> OldTypeDefinition -> PortableType | TypeAlias

type OldTypeDefinition = String | OldEnumDefinition | OldStructDefinition type OldEnumDefinition = 

_enum: String[] | Hash<Symbol, Any>,

type OldStructDefinition = 

_struct: Hash<Symbol, Any>




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# File 'lib/scale_rb/metadata/registry.rb', line 152

def build_from_definition(name, definition) # rubocop:disable Metrics/MethodLength
  case definition
  when String
    # TypeAlias.new(name, use(definition))
    alias_type_id = use(definition)
    # p "alias_type_id: #{alias_type_id}"
    types[alias_type_id]
  when Hash
    if definition[:_enum]
      _build_portable_type_from_enum_definition(definition)
    elsif definition[:_set]
      raise 'Sets are not supported'
    else
      _build_portable_type_from_struct_definition(definition)
    end
  end
end

#build_portable_type(ast_type) ⇒ Object

% build_portable_type

NamedType | ArrayType | TupleType -> PortableType

__ :build_portable_type, { ast_type: TypedArray[TypeExp::ArrayType | TypeExp::TupleType | TypeExp::NamedType] } => PortableType



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# File 'lib/scale_rb/metadata/registry.rb', line 81

def build_portable_type(ast_type)
  case ast_type
  when TypeExp::ArrayType
    ArrayType.new(use(ast_type.item), ast_type.len, registry: self)
  when TypeExp::TupleType
    TupleType.new(ast_type.params.map { |param| use(param) })
  when TypeExp::NamedType
    build_portable_type_from_named_type(ast_type)
  else
    raise "Unknown type: #{ast_type.class}"
  end
end

#build_portable_type_from_named_type(named_type) ⇒ Object

% build_portable_type_from_named_type

NamedType -> PortableType



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# File 'lib/scale_rb/metadata/registry.rb', line 95

def build_portable_type_from_named_type(named_type)
  name = named_type.name
  params = named_type.params

  definition = @old_types[name.to_sym]
  return build_from_definition(name, definition) if definition

  primitive = as_primitive(name)
  return primitive if primitive

  case name
  when 'Vec'
    item_index = use(params[0].to_s)
    SequenceType.new(type: item_index, registry: self)
  when 'Option'
    item_index = use(params[0].to_s)
    VariantType.option(item_index, self)
  when 'Result'
    ok_index = use(params[0].to_s)
    err_index = use(params[1].to_s)
    VariantType.result(ok_index, err_index, self)
  when 'Compact'
    # item_index = use(params[0].to_s)
    # CompactType.new(type: item_index, registry: self)
    CompactType.new
  when 'Null'
    UnitType.new
  else
    raise "Unknown type: #{name}"
  end
end

#inspect ⇒ Object 



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# File 'lib/scale_rb/metadata/registry.rb', line 50

def inspect
  "registry(#{@types.length} types)"
end

#to_s ⇒ Object 



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# File 'lib/scale_rb/metadata/registry.rb', line 54

def to_s
  @types.map.with_index do |type, index|
    "#{@keys[index]} => #{type.to_s}"
  end.join("\n")
end

#use(old_type_exp) ⇒ Object

% use

String -> Integer



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# File 'lib/scale_rb/metadata/registry.rb', line 61

def use(old_type_exp)
  raise "Empty old_type_exp: #{old_type_exp}" if old_type_exp.nil? || old_type_exp.strip == ''

  ast_type = TypeExp.parse(old_type_exp)
  raise "No AST type for #{old_type_exp}" if ast_type.nil?

  key = ast_type.to_s
  ti = lookup[key]
  return ti if ti

  ti = @types.length
  @types[ti] = "Placeholder"
  @lookup[key] = ti
  @keys[ti] = key
  @types[ti] = build_portable_type(ast_type)
  ti
end