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grammar t050decorate;
options {
language = Python;
}
@header {
def logme(func):
def decorated(self, *args, **kwargs):
self.events.append('before')
try:
return func(self, *args, **kwargs)
finally:
self.events.append('after')
return decorated
}
@parser::init {
self.events = []
}
document
@decorate {
@logme
}
: IDENTIFIER
;
IDENTIFIER: ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'0'..'9'|'_')*;
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