Class: RLTK::CG::MemoryBuffer

Inherits:
Object
  • Object
show all
Includes:
BindingClass
Defined in:
lib/rltk/cg/memory_buffer.rb

Overview

This class is used by the Module class to dump and load LLVM bitcode.

Instance Attribute Summary

Attributes included from BindingClass

#ptr

Instance Method Summary collapse

Methods included from BindingClass

#==

Constructor Details

#initialize(overloaded = nil) ⇒ MemoryBuffer

Create a new memory buffer.

Parameters:

  • overloaded (FFI::Pointer, String, nil) (defaults to: nil) —

    This parameter may be either a pointer to an existing memory buffer, the name of a file containing LLVM bitcode, or nil. If it is nil the memory buffer will read from standard in.



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# File 'lib/rltk/cg/memory_buffer.rb', line 28

def initialize(overloaded = nil)
	@ptr =
	case overloaded
	when FFI::Pointer
		overloaded
	else
		buf_ptr = FFI::MemoryPointer.new(:pointer)
		msg_ptr = FFI::MemoryPointer.new(:pointer)
		
		status =
		case overloaded
		when String
			Bindings.create_memory_buffer_with_contents_of_file(overloaded, buf_ptr, msg_ptr)
		else
			Bindings.create_memory_buffer_with_stdin(buf_ptr, msg_ptr)
		end
		
		raise msg_ptr.get_pointer(0).get_string(0) if status != 0
		
		buf_ptr.get_pointer(0)
	end
end

Instance Method Details

#dispose ⇒ void

This method returns an undefined value.

Frees the resources used by LLVM for this memory buffer.



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# File 'lib/rltk/cg/memory_buffer.rb', line 54

def dispose
	if @ptr
		Bindings.dispose_memory_buffer(@ptr)
		
		@ptr = nil
	end
end