Class: Rbind::GeneratorRuby

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

Defined Under Namespace

Classes: HelperBase, RBindHelper, RTypeHelper

Class Attribute Summary collapse

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 524

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
    @compact_namespace = true
end

Class Attribute Details

.ffi_type_map ⇒ Object

Returns the value of attribute ffi_type_map.



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# File 'lib/rbind/generator_ruby.rb', line 10

def ffi_type_map
  @ffi_type_map
end

.on_normalize_type_name(&block) ⇒ Object

Returns the value of attribute on_normalize_type_name.



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# File 'lib/rbind/generator_ruby.rb', line 9

def on_normalize_type_name
  @on_normalize_type_name
end

.ruby_default_value_map ⇒ Object

Returns the value of attribute ruby_default_value_map.



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# File 'lib/rbind/generator_ruby.rb', line 8

def ruby_default_value_map
  @ruby_default_value_map
end

Instance Attribute Details

#compact_namespace ⇒ Object

Returns the value of attribute compact_namespace.



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# File 'lib/rbind/generator_ruby.rb', line 517

def compact_namespace
  @compact_namespace
end

#file_prefix ⇒ Object

Returns the value of attribute file_prefix.



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# File 'lib/rbind/generator_ruby.rb', line 516

def file_prefix
  @file_prefix
end

#library_name ⇒ Object

Returns the value of attribute library_name.



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# File 'lib/rbind/generator_ruby.rb', line 514

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 512

def module_name
  @module_name
end

#output_path ⇒ Object

Returns the value of attribute output_path.



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# File 'lib/rbind/generator_ruby.rb', line 515

def output_path
  @output_path
end

#required_module_names ⇒ Object

Returns the value of attribute required_module_names.



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# File 'lib/rbind/generator_ruby.rb', line 513

def required_module_names
  @required_module_names
end

#root ⇒ Object (readonly)

Returns the value of attribute root.



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# File 'lib/rbind/generator_ruby.rb', line 518

def root
  @root
end

Class Method Details

.keyword?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rbind/generator_ruby.rb', line 16

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 24

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_ffi(name) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 116

def self.normalize_basic_type_name_ffi(name)
    n = ffi_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 39

def self.normalize_default_value(parameter)
    return nil unless parameter.default_value
    val = if parameter.type.basic_type? || parameter.type.ptr?
              if ruby_default_value_map.has_key?(parameter.default_value)
                  ruby_default_value_map[parameter.default_value]
              elsif parameter.type.name == "float"
                  parameter.default_value.gsub("f","")
              elsif parameter.type.name == "double"
                  parameter.default_value.gsub(/\.$/,".0").gsub(/^\./,"0.")
              else
                  normalize_type_name(parameter.default_value)
              end
          else
              if(parameter.default_value =~ /([\w:]*) *\((.*)\)/)
                  t = parameter.owner.owner.type($1,false)
                  ops = Array(parameter.owner.owner.operation($1,false)) if !t
                  t,ops = if t || !ops.empty?
                              [t,ops]
                          else
                              ns = RBase.namespace($1)
                              name = RBase.basename($1)
                              if ns && name
                                  t = parameter.owner.owner.type(ns,false) 
                                  ops = Array(t.operation(name,false)) if t
                                  [t,ops]
                              else
                                  [nil,nil]
                              end
                          end
                  if ops && !ops.empty?
                      if t
                        "#{normalize_type_name(t.full_name)}::#{normalize_method_name(ops.first.name)}(#{($2)})"
                      else
                        "#{normalize_method_name(ops.first.name)}(#{($2)})"
                      end
                  elsif t
                      "#{normalize_type_name(t.full_name)}.new(#{($2)})"
                  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(orig_name) ⇒ Object

normalize c method to meet ruby conventions see unit tests



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# File 'lib/rbind/generator_ruby.rb', line 128

def self.normalize_method_name(orig_name)
    #remove cprefix and replaced _X with #X
    name = orig_name.to_s.gsub(/\A#{RBase.cprefix}/, "") .gsub(/_((?<!\A)\p{Lu})/u, '#\1')
    #replaced X with _x
    name = name.gsub(/(?<!\A)[\p{Lu}\d]/u, '_\0').downcase
    #replaced _x_ with #x#
    name = name.to_s.gsub(/[_#]([a-zA-Z\d])[_#]/u, '#\1#')
    #replaced _x$ with #x
    name = name.to_s.gsub(/[_#]([a-zA-Z\d])$/u, '#\1')
    #replaced ## with _
    name = name.gsub(/##/, '_')
    #replace #xx with _xx
    name = name.gsub(/#([a-zA-Z\d]{2})/, '_\1')
    #remove all remaining #
    name = name.gsub(/#/, '')
    #replace operatorX with the correct ruby operator
    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
    raise "generated empty name for #{orig_name}" if name.empty?
    name
end

.normalize_type_name(name) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 89

def self.normalize_type_name(name)
    # custom normalization
    if @on_normalize_type_name
        n = @on_normalize_type_name.call(name)
        return n if n
    end

    if name =~ /^u?int\d*$/ || name =~ /^u?int\d+_t$/
        return "Fixnum"
    end
    name = name.gsub(/^_/,"")
    names = name.split("::").map do |n|
        n.gsub(/^(\w)(.*)/) do 
            $1.upcase+$2
        end
    end
    n = names.last.split("_").first
    if n == n.upcase
        return names.join("::")
    end
    names.join("::").split("_").map do |n|
        n.gsub(/^(\w)(.*)/) do 
            $1.upcase+$2
        end
    end.join("")
end

Instance Method Details

#generate(path = @output_path) ⇒ Object 



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# File 'lib/rbind/generator_ruby.rb', line 532

def generate(path=@output_path)
    @output_path = path
    FileUtils.mkdir_p(path) if path  && !File.directory?(path)
    file_rbind = File.new(File.join(path,"#{file_prefix}.rb"),"w")
    file_types = File.new(File.join(path,"#{file_prefix}_types.rb"),"w")

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