bitcoin/test/lint/lint-assertions.sh
MarcoFalke fa6ef701ad
util: Add Assert identity function
The utility is primarily useful to dereference pointer types, which are
known to be not null at that time.

For example, the ArgsManager is known to exist when the wallets are
started. Instead of silently relying on that assumption, Assert can be
used to abort the program and avoid UB should the assumption ever be
violated.
2020-06-15 07:39:08 -04:00

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#!/usr/bin/env bash
#
# Copyright (c) 2018-2019 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
#
# Check for assertions with obvious side effects.
export LC_ALL=C
EXIT_CODE=0
# PRE31-C (SEI CERT C Coding Standard):
# "Assertions should not contain assignments, increment, or decrement operators."
OUTPUT=$(git grep -E '[^_]assert\(.*(\+\+|\-\-|[^=!<>]=[^=!<>]).*\);' -- "*.cpp" "*.h")
if [[ ${OUTPUT} != "" ]]; then
echo "Assertions should not have side effects:"
echo
echo "${OUTPUT}"
EXIT_CODE=1
fi
# Macro CHECK_NONFATAL(condition) should be used instead of assert for RPC code, where it
# is undesirable to crash the whole program. See: src/util/check.h
# src/rpc/server.cpp is excluded from this check since it's mostly meta-code.
OUTPUT=$(git grep -nE '\<(A|a)ssert *\(.*\);' -- "src/rpc/" "src/wallet/rpc*" ":(exclude)src/rpc/server.cpp")
if [[ ${OUTPUT} != "" ]]; then
echo "CHECK_NONFATAL(condition) should be used instead of assert for RPC code."
echo
echo "${OUTPUT}"
EXIT_CODE=1
fi
exit ${EXIT_CODE}