def visitExp(self, ctx: BKITParser.ExpContext):
# a := b := 4
# Binary(:=,Id(a),Binary(:=,Id(b),IntLiteral(4)))
# [4,b,a]
terms = list(reversed(list(map(lambda x: x.accept(self), ctx.term()))))
# print(terms)
def binaryGen(a, b):
# 4 ,b
return Binary(ctx.ASSIGN(0).getText(), b, a)
#print(reduce(binaryGen, terms))
return reduce(binaryGen, terms)
def visitExp(self, ctx: BKITParser.ExpContext):
if ctx.ASSIGN():
return Binary(ctx.ASSIGN().getText(), self.visitTerm(ctx.term()),
self.visitExp(ctx.exp()))
else:
return self.visitTerm(ctx.term())
def visitExp(self,ctx:BKITParser.ExpContext):
if ctx.ASSIGN():
return reduce(lambda rh,lh: Binary(ctx.ASSIGN(0).getText(), lh, rh), list(map(lambda term: self.visitTerm(term), ctx.term()))[::-1])
return self.visitTerm(ctx.term(0))
def visitExp(self, ctx: BKITParser.ExpContext):
# term
if (ctx.getChildCount() == 1):
return ctx.term().accept(self)
# term ASSIGN exp
return Binary(ctx.ASSIGN().getText(), ctx.term().accept(self), ctx.exp().accept(self))