Module: FastRuby::VariabeTranslator

Defined in:
lib/fastruby/translator/modules/variable.rb

Instance Method Summary collapse

Instance Method Details

#to_c_cdecl(tree, result_var_ = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 95

def to_c_cdecl(tree, result_var_ = nil)
  
  result_var = result_var_ || "value"
  
  if tree[1].instance_of? Symbol
    code = "
      {
        // set constant #{tree[1].to_s}
        #{to_c tree[2], result_var};
        rb_const_set(rb_cObject, #{intern_num tree[1]}, #{result_var});
      }
      "
  elsif tree[1].instance_of? FastRuby::FastRubySexp

    if tree[1].node_type == :colon2
      code = "
        {
          // set constant #{tree[1].to_s}
          #{to_c tree[2], result_var};
          VALUE klass = Qnil;
          #{to_c tree[1][1], "klass"};
          rb_const_set(klass, #{intern_num tree[1][2]}, #{result_var});
        }
        "
    elsif tree[1].node_type == :colon3
      code = "
        {
        // set constant #{tree[1].to_s}
        #{to_c tree[2], result_var};
        rb_const_set(rb_cObject, #{intern_num tree[1][1]}, #{result_var});
        }
        "
    end
    
    if result_var_
      code
    else
       inline_block "VALUE #{result_var} = Qnil;\n" + code + "
        return #{result_var};
       "
    end
  end
end

#to_c_colon2(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 143

def to_c_colon2(tree, result_var = nil)
  code = "
    {
    VALUE klass = Qnil;
    
    #{to_c tree[1],"klass"};
        #{
        if result_var
          "#{result_var} = Qnil;"
        end
      }

  if (rb_is_const_id(#{intern_num tree[2]})) {
    switch (TYPE(klass)) {
      case T_CLASS:
      case T_MODULE:
        #{
        if result_var
          "#{result_var} = rb_const_get_from(klass, #{intern_num tree[2]});"
        else
          "return rb_const_get_from(klass, #{intern_num tree[2]});"
        end
        }
        break;
      default:
        #{_raise("rb_eTypeError","not a class/module")};
        break;
    }
  }
  else {
        #{
        if result_var
          "#{result_var} = rb_funcall(klass, #{intern_num tree[2]}, 0, 0);"
        else
          "return rb_funcall(klass, #{intern_num tree[2]}, 0, 0);"
        end
        }
  }
    
        #{
        unless result_var
          "return Qnil;"
        end
        }
    }
  "
  
  if result_var
    code
  else
    inline_block code
  end
end

#to_c_colon3(tree) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 139

def to_c_colon3(tree)
  "rb_const_get_from(rb_cObject, #{intern_num tree[1]})"
end

#to_c_const(tree) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 91

def to_c_const(tree)
  "rb_const_get(CLASS_OF(plocals->self), #{intern_num(tree[1])})"
end

#to_c_cvar(tree) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 26

def to_c_cvar(tree)
  "rb_cvar_get(CLASS_OF(plocals->self) != rb_cClass ? CLASS_OF(plocals->self) : plocals->self,#{intern_num tree[1]})"
end

#to_c_cvasgn(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 30

def to_c_cvasgn(tree, result_var = nil)
  if result_var
    "
      {
        VALUE recv = CLASS_OF(plocals->self) != rb_cClass ? CLASS_OF(plocals->self) : plocals->self;

        #{to_c tree[2], result_var};
        
        #{if RUBY_VERSION =~ /^1\.9/
          "rb_cvar_set(recv,#{intern_num tree[1]},#{result_var});"
          elsif RUBY_VERSION =~ /^1\.8/
          "rb_cvar_set(recv,#{intern_num tree[1]},#{result_var},Qfalse);"
          else
            raise RuntimeError, "unsupported ruby version #{RUBY_VERSION}"
          end 
        }
      }
   "
  else
  "__rb_cvar_set(CLASS_OF(plocals->self) != rb_cClass ? CLASS_OF(plocals->self) : plocals->self,#{intern_num tree[1]},#{to_c tree[2]},Qfalse)"
  end
end

#to_c_defined(tree) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 253

def to_c_defined(tree)
  nt = tree[1].node_type

  if nt == :self
  'rb_str_new2("self")'
  elsif nt == :true
  'rb_str_new2("true")'
  elsif nt == :false
  'rb_str_new2("false")'
  elsif nt == :nil
  'rb_str_new2("nil")'
  elsif nt == :lvar
  'rb_str_new2("local-variable")'
  elsif nt == :gvar
  "rb_gvar_defined((struct global_entry*)#{global_entry(tree[1][1])}) ? #{literal_value "global-variable"} : Qnil"
  elsif nt == :const
  "rb_const_defined(rb_cObject, #{intern_num tree[1][1]}) ? #{literal_value "constant"} : Qnil"
  elsif nt == :call
    if RUBY_VERSION =~ /^1\.8/
    "rb_method_node(CLASS_OF(#{to_c tree[1][1]}), #{intern_num tree[1][2]}) ? #{literal_value "method"} : Qnil"
    else
    "rb_method_entry(CLASS_OF(#{to_c tree[1][1]}), #{intern_num tree[1][2]}) ? #{literal_value "method"} : Qnil"
    end
  elsif nt == :yield
    "rb_block_given_p() ? #{literal_value "yield"} : Qnil"
  elsif nt == :ivar
  "rb_ivar_defined(plocals->self,#{intern_num tree[1][1]}) ? #{literal_value "instance-variable"} : Qnil"
  elsif nt == :attrset or
        nt == :op_asgn1 or
        nt == :op_asgn2 or
        nt == :op_asgn_or or
        nt == :op_asgn_and or
        nt == :op_asgn_masgn or
        nt == :masgn or
        nt == :lasgn or
        nt == :dasgn or
        nt == :dasgn_curr or
        nt == :gasgn or
        nt == :iasgn or
        nt == :cdecl or
        nt == :cvdecl or
        nt == :cvasgn
    literal_value "assignment"
  else
    literal_value "expression"
  end
end

#to_c_gasgn(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 61

def to_c_gasgn(tree, result_var = nil)
  if result_var
      "
      {
      #{to_c tree[2], result_var}; 
      rb_gvar_set((void*)#{global_entry(tree[1])},#{result_var});
      }
      "
  else
  "_rb_gvar_set((void*)#{global_entry(tree[1])}, #{to_c tree[2]})"
  end
end

#to_c_gvar(tree) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 53

def to_c_gvar(tree)
  if (tree[1] == :$!)
    "pframe->thread_data->exception"
  else
    "rb_gvar_get((struct global_entry*)#{global_entry(tree[1])})"
  end
end

#to_c_iasgn(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 78

def to_c_iasgn(tree, result_var = nil)
  if result_var
      "
      {
      #{to_c tree[2], result_var}; 
      rb_ivar_set(#{locals_accessor}self,#{intern_num tree[1]},#{result_var});
      }
      "
  else
    "_rb_ivar_set(#{locals_accessor}self,#{intern_num tree[1]},#{to_c tree[2]})"
  end
end

#to_c_ivar(tree) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 74

def to_c_ivar(tree)
  "rb_ivar_get(#{locals_accessor}self,#{intern_num tree[1]})"
end

#to_c_lasgn(tree, result_var = nil) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 197

def to_c_lasgn(tree, result_var = nil)
  code = "
      {
        #{to_c tree[2], result_var};
        #{locals_accessor}#{tree[1]} = #{result_var};
       }
       "

  if result_var
    if options[:validate_lvar_types]
      klass = @infer_lvar_map[tree[1]]
      if klass
        "
        {
          #{to_c tree[2], result_var};
          if (CLASS_OF(#{result_var})!=#{literal_value klass}) {
            #{_raise(literal_value(FastRuby::TypeMismatchAssignmentException), "Illegal assignment at runtime (type mismatch)")};
          }
          #{locals_accessor}#{tree[1]} = #{result_var};
        }
       "
      else
        code
      end
    else
      code
    end
  else
    if options[:validate_lvar_types]
      klass = @infer_lvar_map[tree[1]]
      if klass
        verify_type_function = proc { |name| "
          static VALUE #{name}(VALUE arg, void* pframe ) {
            if (CLASS_OF(arg)!=#{literal_value klass}) {
              #{_raise(literal_value(FastRuby::TypeMismatchAssignmentException), "Illegal assignment at runtime (type mismatch)")};
            }
            return arg;
          }
        "
        }
        
        "_lvar_assing(&#{locals_accessor}#{tree[1]}, #{anonymous_function(&verify_type_function)}(#{to_c tree[2]},pframe))"
      else
        "_lvar_assing(&#{locals_accessor}#{tree[1]},#{to_c tree[2]})"
      end
    else
      "_lvar_assing(&#{locals_accessor}#{tree[1]},#{to_c tree[2]})"
    end
  end
end

#to_c_lvar(tree) ⇒ Object 



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# File 'lib/fastruby/translator/modules/variable.rb', line 248

def to_c_lvar(tree)
  locals_accessor + tree[1].to_s
end