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|
# frozen_string_literal: true
module IRB
class Statement
attr_reader :code
def is_assignment?
raise NotImplementedError
end
def suppresses_echo?
raise NotImplementedError
end
def should_be_handled_by_debugger?
raise NotImplementedError
end
class EmptyInput < Statement
def is_assignment?
false
end
def suppresses_echo?
true
end
# Debugger takes empty input to repeat the last command
def should_be_handled_by_debugger?
true
end
def code
""
end
end
class Expression < Statement
def initialize(code, is_assignment)
@code = code
@is_assignment = is_assignment
end
def suppresses_echo?
@code.match?(/;\s*\z/)
end
def should_be_handled_by_debugger?
true
end
def is_assignment?
@is_assignment
end
end
class Command < Statement
attr_reader :command_class, :arg
def initialize(original_code, command_class, arg)
@code = original_code
@command_class = command_class
@arg = arg
end
def is_assignment?
false
end
def suppresses_echo?
false
end
def should_be_handled_by_debugger?
require_relative 'command/debug'
IRB::Command::DebugCommand > @command_class
end
end
end
end
|
