Sha256: 0a83a6dc70ef5278cb4b1ca5e43c389872c75f32b6060c4b2e4fb9550a9b31bd
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Size: 1.16 KB
Versions: 9
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Stored size: 1.16 KB
Contents
# frozen_string_literal: true
module GirFFI
# The InOutPointer class handles conversion between ruby types and
# pointers for arguments with direction :inout and :out.
#
class InOutPointer < FFI::Pointer
attr_reader :value_type
def initialize(type, ptr)
@value_type = type
super ptr
end
def to_value
case value_ffi_type
when Module
value_ffi_type.get_value_from_pointer(self, 0)
when Symbol
send("get_#{value_ffi_type}", 0)
else
raise NotImplementedError
end
end
# Convert more fully to a ruby value than #to_value
def to_ruby_value
bare_value = to_value
case value_type
when :utf8
bare_value.to_utf8
when Array
value_type[1].wrap bare_value
when Class
value_type.wrap bare_value
else
bare_value
end
end
def self.allocate_new(type)
ffi_type = TypeMap.type_specification_to_ffi_type type
ptr = FFI::MemoryPointer.new(ffi_type)
new type, ptr
end
private
def value_ffi_type
@value_ffi_type ||= TypeMap.type_specification_to_ffi_type value_type
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems