Class: L::C::TargetGeneratedHeader

Inherits:

R::TargetSmart

• Object
• R::Target
• R::TargetSmart
• L::C::TargetGeneratedHeader

Defined in:

lib/rub/l/c.rb

Instance Attribute Summary

Attributes inherited from R::TargetSmart

#input, #output

Instance Method Summary

• #build_self ⇒ Object
• #hash_input ⇒ Object
• #hash_output(t) ⇒ Object
• #initialize(opt, name, h, c, values) ⇒ TargetGeneratedHeader constructor

  A new instance of TargetGeneratedHeader.

Methods inherited from R::TargetSmart

#build, #clean, #clean?

Methods inherited from R::Target

#build, #clean?, #description, #hash_outputs, #hash_self, #input, #output, #register

Constructor Details

#initialize(opt, name, h, c, values) ⇒ TargetGeneratedHeader

Returns a new instance of TargetGeneratedHeader.

# File 'lib/rub/l/c.rb', line 370

def initialize(opt, name, h, c, values)
	super()
	
	@n = name
	@h = h
	@c = c
	
	@val = values
	
	output << @h << @c
end

Instance Method Details

#build_self ⇒ Object

# File 'lib/rub/l/c.rb', line 390

def build_self
	@h.dirname.mkpath
	@c.dirname.mkpath
	
	h = @h.open('w')
	c = @c.open('w')
	
	notice = <<"EOS"
/* THIS FILE IS AUTOMATICALLY GENERATED - DO NOT EDIT! */
/* This file was generated by Rub on #{DateTime.now.iso8601} */

EOS
	h.print notice
	c.print notice
	
	hname = L::C.to_c_identifier(@h.basename.to_s).upcase
	h.puts "#ifndef RUB_L_C_GENERATE_HEADER___#{hname}"
	h.puts "#define RUB_L_C_GENERATE_HEADER___#{hname}"
	h.puts ''
	
	c.puts %|#include "#{@n}.h"|
	c.puts ''
	
	@val.each do |k, v|
		type, v = if v.is_a?(Array)
			[v[0], v[1]]
		elsif v.is_a? Numeric
			['int', v.to_s]
		elsif v.equal?(true) || v.equal?(false)
			['short unsigned int', v ? 1 : 0]
		elsif v.respond_to? :to_s
			['const char *', v.to_s.inspect] # @TODO: make this quote for C rather then ruby.
		end
	
		h.puts "extern #{type} #{k};"
		c.puts "#{type} #{k} = #{v};"
	end
	
	h.puts ''
	h.puts "#endif /* RUB_L_C_GENERATE_HEADER___#{hname} */"
	
	h.close
	c.close
	
	bs = R::BuildStep.new
	bs.desc = "Generating #{@h} and #{@c}"
	bs.print
end

#hash_input ⇒ Object

# File 'lib/rub/l/c.rb', line 382

def hash_input
	Digest::SHA1.digest(@val.inspect)
end

#hash_output(t) ⇒ Object

# File 'lib/rub/l/c.rb', line 386

def hash_output(t)
	Digest::SHA1.digest(t.readlines.drop(2).join('\n'))
end