Class: MRubyTools

Inherits:
Object
  • Object
show all
Defined in:
lib/mruby_tools.rb

Defined Under Namespace

Modules: C, CLI Classes: MRubyNotFound

Constant Summary collapse

MRUBY_DIR = 
File.expand_path("../mruby", __dir__)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(mruby_dir = nil) ⇒ MRubyTools

Returns a new instance of MRubyTools.



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# File 'lib/mruby_tools.rb', line 14

def initialize(mruby_dir = nil)
  @mruby_dir = mruby_dir || self.class.mruby_dir
  @inc_path = File.join(@mruby_dir, 'include')
  @ar_path = File.join(@mruby_dir, 'build', 'host', 'lib', 'libmruby.a')
end

Instance Attribute Details

#ar_path ⇒ Object

Returns the value of attribute ar_path.



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# File 'lib/mruby_tools.rb', line 12

def ar_path
  @ar_path
end

#inc_path ⇒ Object

Returns the value of attribute inc_path.



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# File 'lib/mruby_tools.rb', line 12

def inc_path
  @inc_path
end

#mruby_dir ⇒ Object

Returns the value of attribute mruby_dir.



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# File 'lib/mruby_tools.rb', line 12

def mruby_dir
  @mruby_dir
end

Class Method Details

.mruby_dir ⇒ Object 



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# File 'lib/mruby_tools.rb', line 8

def self.mruby_dir
  ENV['MRUBY_DIR'] || MRUBY_DIR
end

Instance Method Details

#built? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mruby_tools.rb', line 24

def built?
  File.readable?(@ar_path)
end

#compile(c_file, out_file) ⇒ Object 



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# File 'lib/mruby_tools.rb', line 38

def compile(c_file, out_file)
  system('gcc', *self.gcc_args(c_file, out_file))
end

#gcc_args(c_file, out_file) ⇒ Object 



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# File 'lib/mruby_tools.rb', line 34

def gcc_args(c_file, out_file)
  ['-std=c99', "-I", @inc_path, c_file, "-o", out_file, @ar_path, '-lm']
end

#src? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mruby_tools.rb', line 20

def src?
  File.directory?(@inc_path)
end

#validate! ⇒ Object

Raises:



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# File 'lib/mruby_tools.rb', line 28

def validate!
  raise(MRubyNotFound, @inc_path) unless File.directory? @inc_path
  raise(MRubyNotFound, @ar_path) unless File.readable? @ar_path
  self
end