def __init__(self, args: str = "", name: str = "_") -> None:
super().__init__(args, name)
if not self.args.expr:
self.parser.error("the following arguments are required: expr")
try:
self.code = compile(" ".join(self.args.expr), "<string>", "eval")
except SyntaxError as err:
raise sdb.CommandEvalSyntaxError(self.name, err)
def __init__(self,
prog: drgn.Program,
args: str = "",
name: str = "_") -> None:
super().__init__(prog, args, name)
if not self.args.expr:
self.parser.error("the following arguments are required: expr")
index = None
operators = ["==", "/=", ">", "<", ">=", "<="]
for operator in operators:
try:
index = self.args.expr.index(operator)
# Use the first comparison operator we find.
break
except ValueError:
continue
if index is None:
# If the comparison index is still None, this means not
# operator was found. This is an error.
raise sdb.CommandInvalidInputError(
self.name, "comparison operator is missing")
if index == 0:
# If the comparison index is found to be 0, this means
# there's no left hand side of the comparison to compare the
# right hand side to. This is an error.
raise sdb.CommandInvalidInputError(
self.name, "left hand side of expression is missing")
if index == len(self.args.expr) - 1:
# If the index is found to be at the very end of the list,
# this means there's no right hand side of the comparison to
# compare the left hand side to. This is an error.
raise sdb.CommandInvalidInputError(
self.name, "right hand side of expression is missing")
try:
self.lhs_code = compile(" ".join(self.args.expr[:index]),
"<string>", "eval")
self.rhs_code = compile(" ".join(self.args.expr[index + 1:]),
"<string>", "eval")
except SyntaxError as err:
raise sdb.CommandEvalSyntaxError(self.name, err)
self.compare = self.args.expr[index]
if self.compare == "/=":
self.compare = "!="
def __init__(self,
args: Optional[List[str]] = None,
name: str = "_") -> None:
super().__init__(args, name)
self.expr = self.args.expr[0].split()
index = None
operators = ["==", "!=", ">", "<", ">=", "<="]
for operator in operators:
try:
index = self.expr.index(operator)
# Use the first comparison operator we find.
break
except ValueError:
continue
if index is None:
# If the comparison index is still None, this means not
# operator was found. This is an error.
raise sdb.CommandInvalidInputError(
self.name, "comparison operator is missing")
if index == 0:
# If the comparison index is found to be 0, this means
# there's no left hand side of the comparison to compare the
# right hand side to. This is an error.
raise sdb.CommandInvalidInputError(
self.name, "left hand side of expression is missing")
if index == len(self.expr) - 1:
# If the index is found to be at the very end of the list,
# this means there's no right hand side of the comparison to
# compare the left hand side to. This is an error.
raise sdb.CommandInvalidInputError(
self.name, "right hand side of expression is missing")
try:
self.lhs_code = compile(" ".join(self.expr[:index]), "<string>",
"eval")
self.rhs_code = compile(" ".join(self.expr[index + 1:]), "<string>",
"eval")
except SyntaxError as err:
raise sdb.CommandEvalSyntaxError(self.name, err)
self.compare = self.expr[index]