Module: GirFFI::BuilderHelper

Included in:
BaseTypeBuilder, Builder, GirFFI::Builders::ModuleBuilder
Defined in:
lib/gir_ffi/builder_helper.rb

Overview

Set of helper methods used in the builders.

Instance Method Summary collapse

Instance Method Details

#get_or_define_class(namespace, name, parent = nil) ⇒ Object 



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# File 'lib/gir_ffi/builder_helper.rb', line 14

def get_or_define_class(namespace, name, parent = nil)
  klass = optionally_define_constant(namespace, name) do
    parent ||= yield
    Class.new parent
  end
  if parent && klass.superclass != parent
    raise "Expected #{klass} to have superclass #{parent}, found #{klass.superclass}"
  end

  klass
end

#get_or_define_module(parent, name) ⇒ Object 



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# File 'lib/gir_ffi/builder_helper.rb', line 26

def get_or_define_module(parent, name)
  optionally_define_constant(parent, name) { Module.new }
end

#optionally_define_constant(parent, name) ⇒ Object 



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# File 'lib/gir_ffi/builder_helper.rb', line 6

def optionally_define_constant(parent, name)
  if parent.const_defined? name, false
    parent.const_get name
  else
    parent.const_set name, yield
  end
end