Class: Google::Protobuf::FileDescriptor

Inherits:
Object
  • Object
show all
Extended by:
FFI::DataConverter, Internal::PointerHelper, Internal::TypeSafety
Defined in:
lib/google/protobuf/ffi/file_descriptor.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Internal::PointerHelper

descriptor_from_file_def

Methods included from Internal::TypeSafety

to_native

Constructor Details

#initialize(file_def, descriptor_pool) ⇒ FileDescriptor

Returns a new instance of FileDescriptor.



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 47

def initialize(file_def, descriptor_pool)
  @descriptor_pool = descriptor_pool
  @file_def = file_def
end

Instance Attribute Details

#descriptor_pool ⇒ Object (readonly)

Returns the value of attribute descriptor_pool.



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 19

def descriptor_pool
  @descriptor_pool
end

Class Method Details

.from_native(file_def, _ = nil) ⇒ Object

Parameters:

  • file_def (::FFI::Pointer) —

    FileDef pointer to be wrapped

  • _ (Object) (defaults to: nil) —

    Unused



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 41

def from_native(file_def, _ = nil)
  return nil if file_def.nil? or file_def.null?
  descriptor_from_file_def(file_def)
end

.to_native(value, _) ⇒ Object

Parameters:

  • value (FileDescriptor) —

    FileDescriptor to convert to an FFI native type

  • _ (Object) —

    Unused



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 31

def to_native(value, _)
  file_def_ptr = value.nil? ? nil : value.instance_variable_get(:@file_def)
  return ::FFI::Pointer::NULL if file_def_ptr.nil?
  raise "Underlying file_def was null!" if file_def_ptr.null?
  file_def_ptr
end

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 56

def inspect
  "#{self.class.name}: #{name}"
end

#name ⇒ Object 



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 60

def name
  Google::Protobuf::FFI.file_def_name(@file_def)
end

#options ⇒ Object 



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 64

def options
  @options ||= begin
    size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
    temporary_arena = Google::Protobuf::FFI.create_arena
    buffer = Google::Protobuf::FFI.file_options(@file_def, size_ptr, temporary_arena)
    opts = Google::Protobuf::FileOptions.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
    opts.clear_features()
    opts.freeze
  end
end

#to_proto ⇒ Object 



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 75

def to_proto
  @to_proto ||= begin
    size_ptr = ::FFI::MemoryPointer.new(:size_t, 1)
    temporary_arena = Google::Protobuf::FFI.create_arena
    buffer = Google::Protobuf::FFI.file_to_proto(@file_def, size_ptr, temporary_arena)
    Google::Protobuf::FileDescriptorProto.decode(buffer.read_string_length(size_ptr.read(:size_t)).force_encoding("ASCII-8BIT").freeze)
  end
end

#to_s ⇒ Object 



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# File 'lib/google/protobuf/ffi/file_descriptor.rb', line 52

def to_s
  inspect
end