Run clang-tidy with make tidy

.clang-tidy

@@ -0,0 +1,6 @@
+---
+Checks: ''
+WarningsAsErrors: ''
+HeaderFilterRegex: ''
+FormatStyle: none
+SystemHeaders: false

Makefile

@@ -3,7 +3,7 @@
 .SUFFIXES:
 .SUFFIXES: .cpp .y .o
 
-.PHONY: all clean install checkdiff develop debug profile coverage iwyu mingw32 mingw64 wine-shim dist
+.PHONY: all clean install checkdiff develop debug profile coverage tidy iwyu mingw32 mingw64 wine-shim dist
 
 # User-defined variables
 
@@ -165,7 +165,6 @@ src/gfx/rgba.o: src/gfx/rgba.cpp
 	$Q${CXX} ${REALCXXFLAGS} -c -o $@ $<
 
 # Target used to remove all files generated by other Makefile targets
-
 clean:
 	$Q${RM} rgbasm rgbasm.exe
 	$Q${RM} rgblink rgblink.exe
@@ -179,7 +178,6 @@ clean:
 	$Q${RM} test/gfx/randtilegen test/gfx/rgbgfx_test
 
 # Target used to install the binaries and man pages.
-
 install: all
 	$Qinstall -d ${DESTDIR}${bindir}/ ${DESTDIR}${mandir}/man1/ ${DESTDIR}${mandir}/man5/ ${DESTDIR}${mandir}/man7/
 	$Qinstall ${STRIP} -m ${BINMODE} rgbasm ${DESTDIR}${bindir}/rgbasm${SUFFIX}
@@ -191,15 +189,13 @@ install: all
 	$Qinstall -m ${MANMODE} man/rgbds.7 man/gbz80.7 ${DESTDIR}${mandir}/man7/
 
 # Target used to check for suspiciously missing changed files.
-
 checkdiff:
 	$Qcontrib/checkdiff.bash `git merge-base HEAD ${BASE_REF}`
 
-# This target is used during development in order to prevent adding new issues
-# to the source code. All warnings are treated as errors in order to block the
-# compilation and make the continous integration infrastructure return failure.
+# Target used in development to prevent adding new issues to the source code.
+# All warnings are treated as errors to block the compilation and make the
+# continous integration infrastructure return failure.
 # The rationale for some of the flags is documented in the CMakeLists.
-
 develop:
 	$Q${MAKE} WARNFLAGS="${WARNFLAGS} -Werror -Wextra \
 		-Walloc-zero -Wcast-align -Wcast-qual -Wduplicated-branches -Wduplicated-cond \
@@ -212,26 +208,27 @@ develop:
 		-fsanitize=float-divide-by-zero" \
 		CXXFLAGS="-ggdb3 -Og -fno-omit-frame-pointer -fno-optimize-sibling-calls"
 
-# This target is used during development in order to more easily debug with gdb.
-
+# Target used in development to debug with gdb.
 debug:
 	$Qenv ${MAKE} \
 		CXXFLAGS="-ggdb3 -O0 -fno-omit-frame-pointer -fno-optimize-sibling-calls"
 
-# This target is used during development in order to more easily profile with callgrind.
-
+# Target used in development to profile with callgrind.
 profile:
 	$Qenv ${MAKE} \
 		CXXFLAGS="-ggdb3 -O3 -fno-omit-frame-pointer -fno-optimize-sibling-calls"
 
-# This target is used during development in order to inspect code coverage with gcov.
-
+# Target used in development to inspect code coverage with gcov.
 coverage:
 	$Qenv ${MAKE} \
 		CXXFLAGS="-ggdb3 -Og --coverage -fno-omit-frame-pointer -fno-optimize-sibling-calls"
 
-# This target is used during development in order to remove unused `#include` headers.
+# Target used in development to check code with clang-tidy.
+# Requires Bison-generated header files to exist.
+tidy: src/asm/parser.hpp src/link/script.hpp
+	$Qclang-tidy -p . $$(find src -name '*.cpp')
 
+# Target used in development to remove unused `#include` headers.
 iwyu:
 	$Qenv ${MAKE} \
 		CXX="include-what-you-use" \

README.md

@@ -93,6 +93,7 @@ The RGBDS source code file structure is as follows:
 │   └── run-tests.sh
 ├── .clang-format
 ├── CMakeLists.txt
+├── compile_flags.txt
 ├── Dockerfile
 ├── Makefile
 └── README.md
@@ -118,6 +119,8 @@ The RGBDS source code file structure is as follows:
   modify the behavior of RGBDS.
 - `.clang-format` - code style for automated C++ formatting with
   [`clang-format`](https://clang.llvm.org/docs/ClangFormat.html).
+- `compile_flags.txt` - compiler flags for C++ static analysis with
+  [`clang-tidy`](https://clang.llvm.org/extra/clang-tidy/).
 - `Dockerfile` - defines how to build RGBDS with Docker.
 
 ## 3. History

compile_flags.txt

@@ -0,0 +1,6 @@
+-std=c++2a
+-I
+include
+-fno-exceptions
+-fno-rtti
+-fno-caret-diagnostics