Class: Rbind::GeneratorRuby

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

Defined Under Namespace

Classes: HelperBase, RBindHelper, RTypeHelper

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root, module_name = "Rbind", library_name = "rbind_lib") ⇒ GeneratorRuby

Returns a new instance of GeneratorRuby.



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# File 'lib/rbind/generator_ruby.rb', line 338

def initialize(root,module_name ="Rbind",library_name="rbind_lib")
    @root = root
    @rbind_wrapper = ERB.new(File.open(File.join(File.dirname(__FILE__),"templates","ruby","rbind.rb")).read)
    @module_name = module_name
    @library_name = library_name
end

Instance Attribute Details

#library_name ⇒ Object

Returns the value of attribute library_name.



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# File 'lib/rbind/generator_ruby.rb', line 335

def library_name
  @library_name
end

#module_name ⇒ Object

Returns the value of attribute module_name.



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# File 'lib/rbind/generator_ruby.rb', line 334

def module_name
  @module_name
end

Class Method Details

.keyword?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rbind/generator_ruby.rb', line 7

def self.keyword?(name)
    %w{__FILE__ __LINE__ alias and begin BEGIN break case class def defined? do else elsif end END ensure false for if in module next nil not or redo rescue retry return self super then true undef unless until when while yield}.include? name
end

.normalize_arg_name(name) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 11

def self.normalize_arg_name(name)
    name = name.to_s.sub(/\A#{RBase.cprefix}?/, "").gsub(/(?<!\A)\p{Lu}/u, '_\0').downcase
    name = if keyword?(name)
               "#{name}_"
           else
               name
           end
    # check for digits at the beginning
    if name =~/\d(.*)/
        "_#{name}"
    else
        name
    end
end

.normalize_basic_type_name(name) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 67

def self.normalize_basic_type_name(name)
    @@basic_type_map ||= {"char *" => "string","unsigned char" => "uchar" ,"const char *" => "string" }
    n = @@basic_type_map[name]
    n ||= name
    if n =~ /\*/
        "pointer"
    else
        n
    end
end

.normalize_default_value(parameter) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 26

def self.normalize_default_value(parameter)
    return nil unless parameter.default_value
    val = if parameter.type.basic_type? || parameter.type.ptr?
              if parameter.type.name == "float"
                  parameter.default_value.gsub("f","")
              elsif parameter.type.name == "double"
                  parameter.default_value.gsub(/\.$/,".0")
              else
                  parameter.default_value
              end
          else
              if(parameter.default_value =~ /(\w*)\((.*)\)/)
                  t = parameter.owner.owner.type($1,false)
                  if t
                      "#{normalize_type_name(t.full_name)}.new(#{$2})"
                  else
                      ns = RBase.namespace($1)
                      t = parameter.owner.owner.type(ns,false) if ns
                      ops = Array(t.operation($1,false)) if t
                      "#{normalize_method_name(ops.first.full_name)}(#{$2})" if ops && !ops.empy?
                  end
              else
                  parameter.default_value
              end
          end
    if val
        val
    else
       raise "cannot parse default parameter value #{parameter.default_value} for #{parameter.owner.signature}"
    end
end

.normalize_method_name(name) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 78

def self.normalize_method_name(name)
    name = name.to_s.sub(/\A#{RBase.cprefix}?/, "").gsub(/(?<!\A)\p{Lu}/u, '_\0').downcase
    str = ""
    name.split("_").each_with_index do |n,i|
        if n.empty?
            str += "_"
            next
        end
        if n.size == 1 && i > 1
            str += n
        else
            str += "_#{n}"
        end
    end
    name = str[1,str.size-1]
    name = if name =~/^operator(.*)/
                n = $1
                if n =~ /\(\)/
                    raise "forbbiden method name #{name}"
                elsif n=~ /(.*)(\d)/
                    if $1 == "[]"
                        "array_operator#{$2}"
                    elsif $1 == "+"
                        "plus_operator#{$2}"
                    elsif $1 == "-"
                        "minus_operator#{$2}"
                    elsif $1 == "*"
                        "mul_operator#{$2}"
                    elsif $1 == "/"
                        "div_operator#{$2}"
                    else
                        raise "forbbiden method name #{name}"
                    end
                else
                    n
                end
           else
                name
           end
end

.normalize_type_name(name) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 59

def self.normalize_type_name(name)
    name.split("::").map do |n|
        n.gsub(/^(\w)(.*)/) do 
            $1.upcase+$2
        end
    end.join("::")
end

Instance Method Details

#generate(path = nil) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 345

def generate(path=nil)
    FileUtils.mkdir_p(path) if path  && !File.directory?(path)
    file_rbind = File.new(File.join(path,"opencv.rb"),"w")
    file_types = File.new(File.join(path,"opencv_types.rb"),"w")

    types = RTypeHelper.new(@module_name,@root)
    file_types.write types.result
    rbind = RBindHelper.new(@module_name,@root)
    rbind.library_name = @library_name
    file_rbind.write @rbind_wrapper.result(rbind.binding)
end