def p_if_3(self, p):
"""if : IF LP exp RP block elseifs %prec prec2"""
print(
"hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii"
)
p[0] = Nonterminal()
p[0].list = []
p[3].list = []
p[3].list.append(p[3].true_list)
p[3].list.append(p[3].false_list)
num_of_elseifs = len(p[6].list)
p[0].list = p[6].list
p[0].list.insert(0, p[3].list)
# print(p[0].list)
p[0].code_list = p[6].code
p[0].code_list.insert(0, p[5].code)
# print(p[0].code)
next_code_label = str(
self.get_num_of_last_label(p[0].code_list[-1]) + 1)
code = "L" + next_code_label + ": "
self.code_list.append(code)
if_list = p[0].list[0]
self.backpatch(if_list[0], self.get_start(p[0].code_list[0]))
self.backpatch(if_list[1], "L" + str(p[0].list[1][0][0]))
for i in range(1, num_of_elseifs + 1):
c = p[0].code_list[i]
c_list = c.split(";")
code_in_code_list = c_list[-2] + ";"
index = self.code_list.index(code_in_code_list)
new_code_in_code_list = code_in_code_list + "goto " + "L" + next_code_label + ";"
self.code_list.insert(index, new_code_in_code_list)
self.code_list.pop(index + 1)
c = c + "goto " + "L" + next_code_label + ";"
p[0].code_list[i] = c
for i in range(1, num_of_elseifs + 1):
list = p[0].list[i]
self.backpatch(list[0], self.get_start(p[0].code_list[i]))
if i == num_of_elseifs:
self.backpatch(list[1], self.get_start(p[0].code_list[-1]))
else:
self.backpatch(list[1], code)
print(self.code_list)
self.produce_output()
print(
"hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii"
)
def p_elseifs_2(self, p):
"""elseifs : elseif"""
print("""elseifs -> elseif""")
p[0] = Nonterminal()
p[0].code = []
p[0].code.append(p[1].code)
p[0].list = []
p[0].list.append(p[1].list)
def p_elseif(self, p):
"""elseif : ELSEIF LP exp RP block %prec ELSEIF"""
print("""elseif -> ELSEIF LP exp RP block""")
# print("true_list")
# print(p[3].true_list)
# print("false_list")
# print(p[3].false_list)
# print("code block")
# print(p[5].code)
p[0] = Nonterminal()
p[0].code = p[5].code
p[0].list = []
p[0].list.append(p[3].true_list)
p[0].list.append(p[3].false_list)