def is_pointer(x):
if x.kind == p.TOKEN:
# see if it is a pointer declared in the current block
# or a parent block
for b in self.current_block:
for parameter in b.variables:
if parameter.name == x.value:
if helper.pointer_indirection(
parameter.declaration.value, p) > 0:
return parameter
# see if it is a pointer from the parameter list
if self.current_function:
for parameter in self.current_function[-1].parameters:
if parameter.name == x.value:
if helper.pointer_indirection(
parameter.declaration.value, p) > 0:
return parameter
return None
def format_expression_as_list(self, token : parser.Node):
"""
Given an operator node, return a list of tokens/nodes/strings to
be passed to format_op.
"""
p = self.p
a = analyzer.Analyzer
r = []
if token.value[0].kind in [p.TOKEN, p.OPERATOR]:
r = [token.value[0]]
if token.value[1].kind == p.OPERATOR:
if is_sym(token.value[1].value[0], "("):
r += []
else:
r += [" "]
else:
# handles e.g. x = L'♥'
if token.value[1].kind != p.STRING:
r += [" "]
r += [token.value[1]]
return r
op = token.value[0].value
left = None
right = None
extra = None
if a.level[op] == 14: # postfix
if token.value[1] is None:
left = token.value[2]
else:
right = token.value[1]
if len(token.value) > 2:
p.error_token("Operator '" + op + "' can't have two operands here.", token)
else:
if len(token.value) == 2:
right = token.value[1]
if len(token.value) == 3:
if token.value[1] is None:
left = token.value[2]
elif op in "([{":
right = token.value[1]
extra = token.value[2]
else:
left = token.value[1]
right = token.value[2]
if left:
if left.kind == p.OPERATOR:
if left.value[0].kind == p.SYMBOL:
leftop = left.value[0].value
else:
leftop = " "
if leftop in "([{" or a.precedence(leftop, op):
r += [left]
else:
r += ["(", left, ")"]
else:
r += [left]
if op not in self.operator_hug_left:
r += [" "]
operator_value = token.value[0]
# If x is a pointer, return the type declaration, else None
def is_pointer(x):
if x.kind == p.TOKEN:
# see if it is a pointer declared in the current block
# or a parent block
for b in self.current_block:
for parameter in b.variables:
if parameter.name == x.value:
if helper.pointer_indirection(
parameter.declaration.value, p) > 0:
return parameter
# see if it is a pointer from the parameter list
if self.current_function:
for parameter in self.current_function[-1].parameters:
if parameter.name == x.value:
if helper.pointer_indirection(
parameter.declaration.value, p) > 0:
return parameter
return None
# special recognition of . as ->
if token.value[0].kind == p.SYMBOL:
if token.value[0].value == ".":
chain = helper.find_dots(p, token)
param = is_pointer(chain[0])
if not param:
chain = []
for c in chain[1:-1]:
param = helper.get_pointer_member(param, c.value, p)
if not param:
break
if helper.pointer_indirection(param.declaration.value, p) > 0:
pass
else:
break
else:
if param:
operator_value = "->"
r += [operator_value]
if right:
if op not in self.operator_hug_right:
r += " "
if right.kind == p.OPERATOR:
if right.value[0].kind == p.SYMBOL:
rightop = right.value[0].value
else:
rightop = " "
if rightop not in "([{" and a.precedence(op, rightop):
r += ["(", right, ")"]
else:
r += [right]
else:
r += [right]
if extra:
r += [extra]
if op == "//":
r = ["(int)", "("] + r + [")"]
return r