Class: LLVM::MemoryBuffer

Inherits:
Object
  • Object
show all
Defined in:
lib/llvm/core/bitcode.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ptr) ⇒ MemoryBuffer

: (FFI::Pointer) -> void



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# File 'lib/llvm/core/bitcode.rb', line 78

def initialize(ptr)
  @ptr = ptr #: FFI::Pointer?
end

Class Method Details

.from_file(path) ⇒ LLVM::MemoryBuffer

Read the contents of a file into a memory buffer : (String) -> LLVM::MemoryBuffer

Parameters:

  • path (String)

Returns:



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# File 'lib/llvm/core/bitcode.rb', line 92

def self.from_file(path)
  buffer = nil #: LLVM::MemoryBuffer?
  FFI::MemoryPointer.new(:pointer) do |buf_ref|
    FFI::MemoryPointer.new(:pointer) do |msg_ref|
      status = C.create_memory_buffer_with_contents_of_file(path.to_str, buf_ref, msg_ref)
      raise msg_ref.get_pointer(0).get_string(0) if status != 0
      buffer = new(buf_ref.get_pointer(0))
    end
  end
  buffer #: as !nil
end

.from_stdin ⇒ LLVM::MemoryBuffer

Read STDIN into a memory buffer : -> LLVM::MemoryBuffer

Returns:



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# File 'lib/llvm/core/bitcode.rb', line 107

def self.from_stdin
  buffer = nil #: LLVM::MemoryBuffer?
  FFI::Buffer.new(:pointer) do |buf_ref|
    FFI::Buffer.new(:pointer) do |msg_ref|
      status = C.create_memory_buffer_with_stdin(buf_ref, msg_ref)
      raise msg_ref.get_pointer(0).get_string(0) if status != 0
      buffer = new(buf_ref.get_pointer(0))
    end
  end
  buffer #: as !nil
end

Instance Method Details

#dispose ⇒ Object

: -> void



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# File 'lib/llvm/core/bitcode.rb', line 120

def dispose
  return if @ptr.nil?
  C.dispose_memory_buffer(@ptr)
  @ptr = nil
end

#to_ptr ⇒ Object

: -> FFI::Pointer?



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# File 'lib/llvm/core/bitcode.rb', line 84

def to_ptr
  @ptr
end