def build_block(phrase: Phrase, context: Phrase, temp_phrase: List[Token], phrase_line: int):
if temp_phrase[0].token_class == TokenClass.word:
phrase.keyword = temp_phrase[0]
else:
raise InterpretationError(
PeaceError(f"Unexpected phrase sequence.",
ErrorType.phrase_build_error, phrase_line))
if phrase.keyword.value == "main":
if context.phrase_subclass == PhraseSubclass.program:
phrase.phrase_subclass = PhraseSubclass.body
else:
raise InterpretationError(
PeaceError(f"Main block can not be defined inside {context.phrase_subclass.name}.",
ErrorType.phrase_build_error, phrase_line))
elif context.phrase_subclass == PhraseSubclass.program:
phrase.phrase_subclass = PhraseSubclass.expression
elif context.phrase_subclass == PhraseSubclass.body or context.phrase_subclass == PhraseSubclass.expression:
phrase.phrase_subclass = PhraseSubclass.device
else:
raise InterpretationError(
PeaceError(f"Unspecified \"{phrase.keyword.value}\" block subclass.",
ErrorType.phrase_build_error, phrase_line))
if len(temp_phrase) > 1:
if phrase.phrase_subclass == PhraseSubclass.device:
phrase.params = temp_phrase[1:]
else:
raise InterpretationError(
PeaceError(f"Not allowed to use parameters in \"{phrase.keyword.value}\" definition.",
ErrorType.phrase_build_error, phrase_line))
def build_operator(phrase: Phrase, context: Phrase, temp_phrase: List[Token], phrase_line):
if context.phrase_subclass != PhraseSubclass.program:
if temp_phrase[0].token_class == TokenClass.word:
phrase.keyword = temp_phrase[0]
else:
raise InterpretationError(
PeaceError(f"Unexpected phrase sequence.",
ErrorType.phrase_build_error, phrase_line))
phrase.params = temp_phrase[1:]
else:
raise InterpretationError(
PeaceError(f"Operator \"{temp_phrase[0].value}\" not allowed to be used outside blocks.",
ErrorType.phrase_build_error, phrase_line))
def build_label(phrase: Phrase, context: Phrase, temp_phrase: List[Token], phrase_line):
if context.phrase_subclass != PhraseSubclass.program:
if temp_phrase[0].token_class == TokenClass.word:
phrase.keyword = temp_phrase[0]
else:
raise InterpretationError(
PeaceError(f"Unexpected phrase sequence.",
ErrorType.phrase_build_error, phrase_line))
if len(temp_phrase) > 1 and context.phrase_subclass != PhraseSubclass.expression:
raise InterpretationError(
PeaceError(f"Parametrised label name can not be used inside main.",
ErrorType.phrase_build_error, phrase_line))
else:
phrase.params = temp_phrase[1:]
else:
raise InterpretationError(PeaceError(f"Label \"{temp_phrase[0].value}\" "
f"not allowed to be used outside blocks.",
ErrorType.phrase_build_error, phrase_line))