Class: RubyQt6::RSpec::QlassFileParser

Inherits:
Object
  • Object
show all
Defined in:
lib/qt6/rspec/qlass_file_parser.rb

Defined Under Namespace

Classes: MissingLine

Constant Summary collapse

NESTED_QLASSES = 
[
  "QMetaObjectConnection",
  "QPainterPathElement",
  "QFormLayoutTakeRowResult",
  "QTextEditExtraSelection"
]

Instance Method Summary collapse

Constructor Details

#initialize(cppfile, qmod) ⇒ QlassFileParser

Returns a new instance of QlassFileParser.



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 19

def initialize(cppfile, qmod)
  @qmod = qmod
  @qlasses = []
  @lines, @lineno = File.read(cppfile).lines, 0
end

Instance Method Details

#line ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 250

def line
  @lines[@lineno].strip
end

#parse ⇒ Object

Raises:



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 25

def parse
  parse_qlass_variants_declaration
  parse_qlass_definitions
  raise MissingLine.new("}", line) unless line == "}"
  @qlasses
end

#parse_qlass_definition(qlass) ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 65

def parse_qlass_definition(qlass)
  qmod_name = @qmod.name
  name = qlass.name

  expected = "rb_c#{name} ="
  if line == expected
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  expected = "// RubyQt6::#{qmod_name}::#{name}"
  if line == expected
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  if line.start_with?(/define_class_under<#{name}.*rb_mQt6#{qmod_name}, "#{name}"/)
    take_next_line
  else
    raise MissingLine.new("define_class_under<#{name}...", line)
  end

  loop do
    case line
    when /\/\/ RubyQt6-Defined Functions/
      qlass.methods.concat parse_qlass_definition_methods(qlass, :rubyqt6_defined_functions)
    when /\/\/ Constructor/
      qlass.methods.concat parse_qlass_definition_methods(qlass, :constructor)
    when /\/\/ Inherits/
      qlass.methods.concat parse_qlass_definition_methods(qlass, :inherits)
    when /\/\/ Public Functions/
      qlass.methods.concat parse_qlass_definition_methods(qlass, :public_functions)
    when /\/\/ Public Slots/
      qlass.methods.concat parse_qlass_definition_methods(qlass, :public_slots)
    when /\/\/ Signals/
      qlass.methods.concat parse_qlass_definition_methods(qlass, :signals)
    when /\/\/ Static Public Members/
      qlass.methods.concat parse_qlass_definition_methods(qlass, :static_public_members)
    when /.define_attr/
      take_next_line
      next
    when "", "}"
      break
    else
      raise MissingLine.new("// Constructor", line)
    end
  end

  while line == "" || line == "}"
    return if line == "}"
    take_next_line
  end

  while (matched = line.match(/^Data_Type<(.*)rb_c#{name}(.*) =/))
    break if matched[1].start_with?("QFlags")
    enum = Struct.new(:name).new(matched[2])
    qlass.enums << enum
    parse_qlass_definition_enum(qlass, enum)
  end

  while line == "" || line == "}"
    return if line == "}"
    take_next_line
  end

  while (matched = line.match(/^Data_Type<QFlags.*rb_c#{name}(.*) =/))
    flag = Struct.new(:name, :enum_name).new(matched[1], "")
    qlass.flags << flag
    parse_qlass_definition_flag(qlass, flag)
  end
end

#parse_qlass_definition_enum(qlass, enum) ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 183

def parse_qlass_definition_enum(qlass, enum)
  qmod_name = @qmod.name
  name = qlass.name
  enum_name = enum.name

  expected = "Data_Type<#{name}::#{enum_name}> rb_c#{name}#{enum_name} ="
  if line == expected
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  expected = "// RubyQt6::#{qmod_name}::#{name}::#{enum_name}"
  if line == expected
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  expected = "define_qenum_under<#{name}::#{enum_name}>(rb_c#{name}, \"#{enum_name}\");"
  if line == expected
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  while line == "" || line.start_with?("define_qenum_value_under")
    take_next_line
  end
end

#parse_qlass_definition_flag(qlass, flag) ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 214

def parse_qlass_definition_flag(qlass, flag)
  qmod_name = @qmod.name
  name = qlass.name
  flag_name = flag.name

  expected = /Data_Type<QFlags<#{name}::(.*)>> rb_c#{name}#{flag_name} =/
  if (matched = line.match(expected))
    flag.enum_name = matched[1]
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  expected = "// RubyQt6::#{qmod_name}::#{name}::#{flag_name}"
  if line == expected
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  expected = "define_qflags_under<#{name}::#{flag.enum_name}>(rb_c#{name}, \"#{flag_name}\");"
  if line == expected
    take_next_line
  else
    raise MissingLine.new(expected, line)
  end

  while line == ""
    take_next_line
  end
end

#parse_qlass_definition_method(line, qlass, type) ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 156

def parse_qlass_definition_method(line, qlass, type)
  rawline = line
  line = line.sub(".define_constructor", "")
  line = line.sub(".define_singleton_function", "")
  line = line.sub(".define_method", "")
  case line
  when /Constructor<#{qlass.name}.*>/
    rbname = "initialize"
  when /(<.*>)?\("([\w?]+)", \[\]\(/
    rbname = $2
  when /(<.*>)?\("([\w?]+)", [A-Z]/
    rbname = $2
  when /(<.*>)?\("([\w?]+)", &#{qlass.name}::([a-zA-Z0-9_]+)/
    rbname = $2
    cppname = $3
  when /(<.*>)?\("(\W+)", \[\]/
    rbname = $2
  when /(<.*>)?\("(\W+)", [A-Z]/
    rbname = $2
  when /(<.*>)?\("(\W+)", &#{qlass.name}::operator/
    rbname = $2
  else
    raise "Invalid method line: #{line}"
  end
  Struct.new(:type, :rbname, :cppname, :rawline).new(type, rbname, cppname, rawline)
end

#parse_qlass_definition_methods(qlass, type) ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 139

def parse_qlass_definition_methods(qlass, type)
  [].tap do |methods|
    loop do
      take_next_line
      break if line.start_with?(/\/\/ (RubyQt6|Constructor|Inherits|Public|Signals|Static)/) || line == "" || line == "}"

      if line.start_with?("// .define_")
        next
      elsif line.start_with?(".define_")
        methods << parse_qlass_definition_method(line, qlass, type)
      else
        raise MissingLine.new(".define_...", line)
      end
    end
  end
end

#parse_qlass_definitions ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 55

def parse_qlass_definitions
  @qlasses.each do |qlass|
    if NESTED_QLASSES.include?(qlass.name)
      take_next_line until line == "" || line == "}"
      next
    end
    parse_qlass_definition(qlass)
  end
end

#parse_qlass_variants_declaration ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 32

def parse_qlass_variants_declaration
  while line == "" || line.start_with?("#include") || line == "using namespace Rice;"
    take_next_line
  end

  while (matched = line.match(/^Rice::Class rb_c(\w+)/))
    @qlasses << Struct.new(:name, :methods, :enums, :flags).new(matched[1], [], [], [])
    take_next_line
  end

  if @qlasses.length.zero?
    raise MissingLine.new("Rice::Class rb_c...", line)
  end

  until line.start_with?("void Init_q")
    take_next_line
  end

  while line == "" || line.start_with?("void Init_q") || line == "{"
    take_next_line
  end
end

#take_next_line ⇒ Object 



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# File 'lib/qt6/rspec/qlass_file_parser.rb', line 246

def take_next_line
  @lineno += 1
end