Project

General

Profile

Feature #6251

Magic comments for compile options

Added by shugo (Shugo Maeda) over 8 years ago. Updated almost 5 years ago.

Status:
Feedback
Priority:
Normal
Target version:
-
[ruby-core:44105]

Description

Currently, compile options can be set by RubyVM::InstructionSequence.compile_option=.
However, it takes effect only on code compiled after the options are set.

So, how about to add new magic comments for compile options?
For example, the following code sets the options tailcall_optimization and trace_instruction.

  # -*- tailcall-optimization: true; trace-instruction: false -*-

  def fact(n, i = 1)
    if n == 0
      i
    else
      fact(n - 1, n * i)
    end
  end
  p fact(10000)

With the attached patch, magic comments in the main script sets global options, and magic comments in a required library are effective only in that library.


Files

magic-comments-for-compile-options.diff (7.66 KB) magic-comments-for-compile-options.diff shugo (Shugo Maeda), 04/03/2012 06:20 PM

Also available in: Atom PDF