def _parse_single_line(instructions: Sequence[ActPhaseInstruction]) -> str:
non_empty_lines = all_source_code_lines__std_syntax(instructions)
if not non_empty_lines:
raise ParseException.of_str(_NO_SOURCE_LINES)
if len(non_empty_lines) > 1:
raise ParseException.of_str(_TOO_MANY_SOURCE_LINES)
return non_empty_lines[0]
def parse(self) -> _SourceInfoForInterpreterWithArgumentList:
try:
return self._parse_program_with_arguments()
except TokenSyntaxError as ex:
raise ParseException.of_str(
std_error_message_text_for_token_syntax_error_from_exception(
ex))
except SingleInstructionInvalidArgumentException as ex:
raise ParseException.of_str(ex.error_message)
def _syntax_error_if_not_at_eof(source: parse_source.ParseSource):
if source.is_at_eof:
return
if source.is_at_eol__except_for_space:
source.consume_current_line()
_syntax_error_if_not_at_eof(source)
else:
raise ParseException.of_str(
'Superfluous arguments of {PROGRAM}: {src}'.format(
PROGRAM=syntax_elements.PROGRAM_SYNTAX_ELEMENT.singular_name,
src=source.remaining_part_of_current_line))
def test_WHEN_parse_raises_parse_exception_THEN_execution_SHOULD_stop_with_result_of_syntax_error(
self):
# ARRANGE #
expected_cause = 'failure message'
step_recorder = ListRecorder()
recording_atc = ActionToCheckWrapperThatRecordsSteps(
step_recorder, _atc_that_does_nothing())
actor = ActorForConstantAtc(recording_atc,
parse_atc=do_raise(
ParseException.of_str(expected_cause)))
arrangement = Arrangement(test_case=_empty_test_case(), actor=actor)
# ASSERT #
expectation = Expectation(phase_result=asrt_result.status_is(
ExecutionFailureStatus.SYNTAX_ERROR))
# APPLY #
execute_and_check(self, arrangement, expectation)
self.assertEqual([], step_recorder.recorded_elements, 'executed steps')
def parse(self,
instructions: Sequence[ActPhaseInstruction]) -> ActionToCheck:
try:
source_lines = list(
itertools.chain.from_iterable(
map(self._get_source_code_lines, instructions)))
reference_instructions_arguments = self._get_reference_instruction_arguments(
source_lines)
references = list(
itertools.chain.from_iterable(
map(_parse_reference_arguments,
reference_instructions_arguments)))
return ActionToCheckThatRunsConstantActions(
symbol_usages_action=do_return(references))
except SingleInstructionInvalidArgumentException as ex:
raise ParseException.of_str(ex.error_message)
def _get_reference_instruction_arguments(
self, lines: Sequence[str]) -> List[str]:
ret_val = []
for line in lines:
if not line or line.isspace():
continue
parts = line.split(maxsplit=1)
if len(parts
) == 2 and parts[0] == self._reference_instruction_name:
ret_val.append(parts[1])
else:
err_msg = new_pre_formatted_str_for_test(
str_constructor.FormatPositional(
'Invalid act phase instruction: {}\nExpecting: {}',
line, self._reference_instruction_name))
raise ParseException.of_str(err_msg)
return ret_val
def _parse_program(self, source: parse_source.ParseSource) -> ProgramSdv:
try:
return self._program_parser.parse(source)
except SingleInstructionInvalidArgumentException as ex:
raise ParseException.of_str(ex.error_message)
def parse(self, instructions: Sequence[ActPhaseInstruction]):
raise ParseException.of_str('unconditional parse failure')