Use LCOV_EXCL comments to exclude some lines from test coverage (#1662)

.gitignore

@@ -14,4 +14,5 @@ CMakeCache.txt
 CMakeFiles/
 cmake_install.cmake
 build/
+*.dSYM/
 callgrind.out.*

include/asm/symbol.hpp

@@ -82,7 +82,6 @@ Symbol *sym_RedefEqu(std::string const &symName, int32_t value);
 Symbol *sym_AddVar(std::string const &symName, int32_t value);
 int32_t sym_GetRSValue();
 void sym_SetRSValue(int32_t value);
-uint32_t sym_GetConstantValue(std::string const &symName);
 // Find a symbol by exact name, bypassing expansion checks
 Symbol *sym_FindExactSymbol(std::string const &symName);
 // Find a symbol, possibly scoped, by name

include/either.hpp

@@ -103,7 +103,7 @@ public:
 		} else if (other._tag == other._t2.tag_value) {
 			*this = other._t2.value;
 		} else {
-			_tag = nulltag;
+			_tag = nulltag; // LCOV_EXCL_LINE
 		}
 		return *this;
 	}

src/asm/fstack.cpp

@@ -119,9 +119,11 @@ void fstk_SetPreIncludeFile(std::string const &path) {
 		warnx("Overriding pre-included filename %s", preIncludeName.c_str());
 	}
 	preIncludeName = path;
+	// LCOV_EXCL_START
 	if (verbose) {
 		printf("Pre-included filename %s\n", preIncludeName.c_str());
 	}
+	// LCOV_EXCL_STOP
 }
 
 static void printDep(std::string const &path) {
@@ -308,9 +310,11 @@ void fstk_RunInclude(std::string const &path, bool preInclude) {
 
 	if (!fullPath) {
 		if (generatedMissingIncludes && !preInclude) {
+			// LCOV_EXCL_START
 			if (verbose) {
 				printf("Aborting (-MG) on INCLUDE file '%s' (%s)\n", path.c_str(), strerror(errno));
 			}
+			// LCOV_EXCL_STOP
 			failedOnMissingInclude = true;
 		} else {
 			error("Unable to open included file '%s': %s\n", path.c_str(), strerror(errno));
@@ -319,7 +323,7 @@ void fstk_RunInclude(std::string const &path, bool preInclude) {
 	}
 
 	if (!newFileContext(*fullPath, false)) {
-		fatalerror("Failed to set up lexer for file include\n");
+		fatalerror("Failed to set up lexer for file include\n"); // LCOV_EXCL_LINE
 	}
 }
 

src/asm/lexer.cpp

@@ -77,6 +77,7 @@ struct FileUnmapDeleter {
 
 static char *mapFile(int fd, std::string const &path, size_t size) {
 	void *mappingAddr = mmap(nullptr, size, PROT_READ, MAP_PRIVATE, fd, 0);
+	// LCOV_EXCL_START
 	if (mappingAddr == MAP_FAILED && errno == ENOTSUP) {
 		// The implementation may not support MAP_PRIVATE; try again with MAP_SHARED
 		// instead, offering, I believe, weaker guarantees about external modifications to
@@ -86,6 +87,7 @@ static char *mapFile(int fd, std::string const &path, size_t size) {
 		}
 		mappingAddr = mmap(nullptr, size, PROT_READ, MAP_SHARED, fd, 0);
 	}
+	// LCOV_EXCL_STOP
 	return mappingAddr != MAP_FAILED ? static_cast<char *>(mappingAddr) : nullptr;
 }
 
@@ -412,21 +414,27 @@ bool LexerState::setFileAsNextState(std::string const &filePath, bool updateStat
 	if (filePath == "-") {
 		path = "<stdin>";
 		content.emplace<BufferedContent>(STDIN_FILENO);
+		// LCOV_EXCL_START
 		if (verbose) {
 			printf("Opening stdin\n");
 		}
+		// LCOV_EXCL_STOP
 	} else {
 		struct stat statBuf;
 		if (stat(filePath.c_str(), &statBuf) != 0) {
+			// LCOV_EXCL_START
 			error("Failed to stat file \"%s\": %s\n", filePath.c_str(), strerror(errno));
 			return false;
+			// LCOV_EXCL_STOP
 		}
 		path = filePath;
 
 		int fd = open(path.c_str(), O_RDONLY);
 		if (fd < 0) {
+			// LCOV_EXCL_START
 			error("Failed to open file \"%s\": %s\n", path.c_str(), strerror(errno));
 			return false;
+			// LCOV_EXCL_STOP
 		}
 
 		bool isMmapped = false;
@@ -438,9 +446,11 @@ bool LexerState::setFileAsNextState(std::string const &filePath, bool updateStat
 				content.emplace<ViewedContent>(
 				    std::shared_ptr<char[]>(mappingAddr, FileUnmapDeleter(size)), size
 				);
+				// LCOV_EXCL_START
 				if (verbose) {
 					printf("File \"%s\" is mmap()ped\n", path.c_str());
 				}
+				// LCOV_EXCL_STOP
 				isMmapped = true;
 			}
 		}
@@ -448,6 +458,7 @@ bool LexerState::setFileAsNextState(std::string const &filePath, bool updateStat
 		if (!isMmapped) {
 			// Sometimes mmap() fails or isn't available, so have a fallback
 			content.emplace<BufferedContent>(fd);
+			// LCOV_EXCL_START
 			if (verbose) {
 				if (statBuf.st_size == 0) {
 					printf("File \"%s\" is empty\n", path.c_str());
@@ -457,6 +468,7 @@ bool LexerState::setFileAsNextState(std::string const &filePath, bool updateStat
 					);
 				}
 			}
+			// LCOV_EXCL_STOP
 		}
 	}
 
@@ -552,7 +564,9 @@ size_t BufferedContent::readMore(size_t startIndex, size_t nbChars) {
 	ssize_t nbReadChars = read(fd, &buf[startIndex], nbChars);
 
 	if (nbReadChars == -1) {
+		// LCOV_EXCL_START
 		fatalerror("Error while reading \"%s\": %s\n", lexerState->path.c_str(), strerror(errno));
+		// LCOV_EXCL_STOP
 	}
 
 	size += nbReadChars;
@@ -761,7 +775,9 @@ int LexerState::peekCharAhead() {
 		// and `.peekCharAhead()` will continue with its parent
 		assume(exp.offset <= exp.size());
 		if (exp.offset + distance < exp.size()) {
-			return static_cast<uint8_t>((*exp.contents)[exp.offset + distance]);
+			// Macro args can't be recursive, since `peek()` marks them as scanned, so
+			// this is a failsafe that (as far as I can tell) won't ever actually run.
+			return static_cast<uint8_t>((*exp.contents)[exp.offset + distance]); // LCOV_EXCL_LINE
 		}
 		distance -= exp.size() - exp.offset;
 	}
@@ -1323,8 +1339,11 @@ static void appendEscapedString(std::string &str, std::string const &escape) {
 			str += "\\n";
 			break;
 		case '\r':
+			// A literal CR in a string may get treated as a LF, so '\r' is not tested.
+			// LCOV_EXCL_START
 			str += "\\r";
 			break;
+			// LCOV_EXCL_STOP
 		case '\t':
 			str += "\\t";
 			break;
@@ -2163,7 +2182,8 @@ static Token skipIfBlock(bool toEndc) {
 
 				case T_(POP_ELIF):
 					if (lexer_ReachedELSEBlock()) {
-						fatalerror("Found ELIF after an ELSE block\n");
+						// This should be redundant, as the parser handles this error first.
+						fatalerror("Found ELIF after an ELSE block\n"); // LCOV_EXCL_LINE
 					}
 					if (!toEndc && lexer_GetIFDepth() == startingDepth) {
 						return token;
@@ -2255,9 +2275,8 @@ static Token yylex_SKIP_TO_ENDR() {
 
 				case T_(POP_ENDR):
 					depth--;
-					if (!depth) {
-						return Token(T_(YYEOF)); // yywrap() will finish the REPT/FOR loop
-					}
+					// `lexer_CaptureRept` has already guaranteed that the `ENDR`s are balanced
+					assume(depth > 0);
 					break;
 
 				case T_(POP_IF):

src/asm/main.cpp

@@ -87,6 +87,7 @@ static option const longopts[] = {
     {nullptr,           no_argument,       nullptr,  0  }
 };
 
+// LCOV_EXCL_START
 static void printUsage() {
 	fputs(
 	    "Usage: rgbasm [-EhVvw] [-b chars] [-D name[=value]] [-g chars] [-I path]\n"
@@ -107,6 +108,7 @@ static void printUsage() {
 	    stderr
 	);
 }
+// LCOV_EXCL_STOP
 
 int main(int argc, char *argv[]) {
 	time_t now = time(nullptr);
@@ -176,8 +178,10 @@ int main(int argc, char *argv[]) {
 			break;
 
 		case 'h':
+			// LCOV_EXCL_START
 			printUsage();
 			exit(0);
+			// LCOV_EXCL_STOP
 
 		case 'I':
 			fstk_AddIncludePath(musl_optarg);
@@ -195,7 +199,7 @@ int main(int argc, char *argv[]) {
 				dependFileName = "<stdout>";
 			}
 			if (dependFile == nullptr) {
-				err("Failed to open dependfile \"%s\"", dependFileName);
+				err("Failed to open dependfile \"%s\"", dependFileName); // LCOV_EXCL_LINE
 			}
 			break;
 
@@ -302,9 +306,11 @@ int main(int argc, char *argv[]) {
 			if (stateFileSpecs.find(name) != stateFileSpecs.end()) {
 				warnx("Overriding state filename %s", name);
 			}
+			// LCOV_EXCL_START
 			if (verbose) {
 				printf("State filename %s\n", name);
 			}
+			// LCOV_EXCL_STOP
 			stateFileSpecs.emplace(name, std::move(features));
 			break;
 		}
@@ -314,8 +320,10 @@ int main(int argc, char *argv[]) {
 			exit(0);
 
 		case 'v':
+			// LCOV_EXCL_START
 			verbose = true;
 			break;
+			// LCOV_EXCL_STOP
 
 		case 'W':
 			opt_W(musl_optarg);
@@ -367,8 +375,10 @@ int main(int argc, char *argv[]) {
 
 		// Unrecognized options
 		default:
+			// LCOV_EXCL_START
 			printUsage();
 			exit(1);
+			// LCOV_EXCL_STOP
 		}
 	}
 
@@ -391,7 +401,7 @@ int main(int argc, char *argv[]) {
 	std::string mainFileName = argv[musl_optind];
 
 	if (verbose) {
-		printf("Assembling %s\n", mainFileName.c_str());
+		printf("Assembling %s\n", mainFileName.c_str()); // LCOV_EXCL_LINE
 	}
 
 	if (dependFile) {

src/asm/output.cpp

@@ -61,7 +61,7 @@ void out_RegisterNode(std::shared_ptr<FileStackNode> node) {
 	}
 }
 
-// Return a section's ID, or UINT32_MAX if the section is not in the list
+// Return a section's ID, or UINT32_MAX if the section does not exist
 static uint32_t getSectIDIfAny(Section *sect) {
 	if (!sect) {
 		return UINT32_MAX;
@@ -71,7 +71,8 @@ static uint32_t getSectIDIfAny(Section *sect) {
 		return static_cast<uint32_t>(search->second);
 	}
 
-	fatalerror("Unknown section '%s'\n", sect->name.c_str());
+	// Every section that exists should be in `sectionMap`
+	fatalerror("Unknown section '%s'\n", sect->name.c_str()); // LCOV_EXCL_LINE
 }
 
 static void writePatch(Patch const &patch, FILE *file) {
@@ -175,7 +176,7 @@ static void writeRpn(std::vector<uint8_t> &rpnexpr, std::vector<uint8_t> const &
 			sym = sym_FindExactSymbol(symName);
 			if (sym->isConstant()) {
 				rpnexpr[rpnptr++] = RPN_CONST;
-				value = sym_GetConstantValue(symName);
+				value = sym->getConstantValue();
 			} else {
 				rpnexpr[rpnptr++] = RPN_SYM;
 				registerUnregisteredSymbol(*sym); // Ensure that `sym->ID` is set
@@ -323,7 +324,7 @@ void out_WriteObject() {
 		file = stdout;
 	}
 	if (!file) {
-		err("Failed to open object file '%s'", objectFileName.c_str());
+		err("Failed to open object file '%s'", objectFileName.c_str()); // LCOV_EXCL_LINE
 	}
 	Defer closeFile{[&] { fclose(file); }};
 
@@ -343,14 +344,7 @@ void out_WriteObject() {
 		writeFileStackNode(node, file);
 
 		// The list is supposed to have decrementing IDs
-		if (it + 1 != fileStackNodes.end() && it[1]->ID != node.ID - 1) {
-			fatalerror(
-			    "Internal error: fstack node #%" PRIu32 " follows #%" PRIu32
-			    ". Please report this to the developers!\n",
-			    it[1]->ID,
-			    node.ID
-			);
-		}
+		assume(it + 1 == fileStackNodes.end() || it[1]->ID == node.ID - 1);
 	}
 
 	for (Symbol const *sym : objectSymbols) {
@@ -373,9 +367,11 @@ void out_SetFileName(std::string const &name) {
 		warnx("Overriding output filename %s", objectFileName.c_str());
 	}
 	objectFileName = name;
+	// LCOV_EXCL_START
 	if (verbose) {
 		printf("Output filename %s\n", objectFileName.c_str());
 	}
+	// LCOV_EXCL_STOP
 }
 
 static void dumpString(std::string const &escape, FILE *file) {
@@ -528,7 +524,7 @@ void out_WriteState(std::string name, std::vector<StateFeature> const &features)
 		file = stdout;
 	}
 	if (!file) {
-		err("Failed to open state file '%s'", name.c_str());
+		err("Failed to open state file '%s'", name.c_str()); // LCOV_EXCL_LINE
 	}
 	Defer closeFile{[&] { fclose(file); }};
 

src/asm/rpn.cpp

@@ -94,7 +94,7 @@ void Expression::makeSymbol(std::string const &symName) {
 		*ptr++ = RPN_SYM;
 		memcpy(ptr, sym->name.c_str(), nameLen);
 	} else {
-		data = static_cast<int32_t>(sym_GetConstantValue(symName));
+		data = static_cast<int32_t>(sym->getConstantValue());
 	}
 }
 
@@ -325,42 +325,12 @@ void Expression::makeUnaryOp(RPNCommand op, Expression &&src) {
 		case RPN_TZCOUNT:
 			data = val != 0 ? ctz(uval) : 32;
 			break;
-
-		case RPN_LOGOR:
-		case RPN_LOGAND:
-		case RPN_LOGEQ:
-		case RPN_LOGGT:
-		case RPN_LOGLT:
-		case RPN_LOGGE:
-		case RPN_LOGLE:
-		case RPN_LOGNE:
-		case RPN_ADD:
-		case RPN_SUB:
-		case RPN_XOR:
-		case RPN_OR:
-		case RPN_AND:
-		case RPN_SHL:
-		case RPN_SHR:
-		case RPN_USHR:
-		case RPN_MUL:
-		case RPN_DIV:
-		case RPN_MOD:
-		case RPN_EXP:
-		case RPN_BANK_SYM:
-		case RPN_BANK_SECT:
-		case RPN_BANK_SELF:
-		case RPN_SIZEOF_SECT:
-		case RPN_STARTOF_SECT:
-		case RPN_SIZEOF_SECTTYPE:
-		case RPN_STARTOF_SECTTYPE:
-		case RPN_HRAM:
-		case RPN_RST:
-		case RPN_BIT_INDEX:
-		case RPN_CONST:
-		case RPN_SYM:
+		default:
 			// `makeUnaryOp` should never be called with a non-unary operator!
+			// LCOV_EXCL_START
 			unreachable_();
 		}
+		// LCOV_EXCL_STOP
 	} else if (op == RPN_LOGNOT && tryConstLogNot(src)) {
 		data = 0;
 	} else if (int32_t constVal; op == RPN_LOW && (constVal = tryConstLow(src)) != -1) {
@@ -503,29 +473,12 @@ void Expression::makeBinaryOp(RPNCommand op, Expression &&src1, Expression const
 
 			data = op_exponent(lval, rval);
 			break;
-
-		case RPN_NEG:
-		case RPN_NOT:
-		case RPN_LOGNOT:
-		case RPN_BANK_SYM:
-		case RPN_BANK_SECT:
-		case RPN_BANK_SELF:
-		case RPN_SIZEOF_SECT:
-		case RPN_STARTOF_SECT:
-		case RPN_SIZEOF_SECTTYPE:
-		case RPN_STARTOF_SECTTYPE:
-		case RPN_HRAM:
-		case RPN_RST:
-		case RPN_BIT_INDEX:
-		case RPN_HIGH:
-		case RPN_LOW:
-		case RPN_BITWIDTH:
-		case RPN_TZCOUNT:
-		case RPN_CONST:
-		case RPN_SYM:
+		default:
 			// `makeBinaryOp` should never be called with a non-binary operator!
+			// LCOV_EXCL_START
 			unreachable_();
 		}
+		// LCOV_EXCL_STOP
 	} else if (op == RPN_SUB && src1.isDiffConstant(src2.symbolOf())) {
 		data = src1.symbolOf()->getValue() - src2.symbolOf()->getValue();
 	} else if ((op == RPN_LOGAND || op == RPN_AND) && tryConstZero(src1, src2)) {

src/asm/section.cpp

@@ -875,9 +875,11 @@ void sect_BinaryFile(std::string const &name, int32_t startPos) {
 	}
 	if (!file) {
 		if (generatedMissingIncludes) {
+			// LCOV_EXCL_START
 			if (verbose) {
 				printf("Aborting (-MG) on INCBIN file '%s' (%s)\n", name.c_str(), strerror(errno));
 			}
+			// LCOV_EXCL_STOP
 			failedOnMissingInclude = true;
 		} else {
 			error("Error opening INCBIN file '%s': %s\n", name.c_str(), strerror(errno));
@@ -942,9 +944,11 @@ void sect_BinaryFileSlice(std::string const &name, int32_t startPos, int32_t len
 	}
 	if (!file) {
 		if (generatedMissingIncludes) {
+			// LCOV_EXCL_START
 			if (verbose) {
 				printf("Aborting (-MG) on INCBIN file '%s' (%s)\n", name.c_str(), strerror(errno));
 			}
+			// LCOV_EXCL_STOP
 			failedOnMissingInclude = true;
 		} else {
 			error("Error opening INCBIN file '%s': %s\n", name.c_str(), strerror(errno));

src/asm/symbol.cpp

@@ -325,19 +325,6 @@ uint32_t Symbol::getConstantValue() const {
 	return 0;
 }
 
-uint32_t sym_GetConstantValue(std::string const &symName) {
-	if (Symbol const *sym = sym_FindScopedSymbol(symName); sym) {
-		return sym->getConstantValue();
-	}
-
-	if (sym_IsPurgedScoped(symName)) {
-		error("'%s' not defined; it was purged\n", symName.c_str());
-	} else {
-		error("'%s' not defined\n", symName.c_str());
-	}
-	return 0;
-}
-
 std::pair<Symbol const *, Symbol const *> sym_GetCurrentLabelScopes() {
 	return {globalScope, localScope};
 }
@@ -528,8 +515,10 @@ static uint32_t anonLabelID = 0;
 
 Symbol *sym_AddAnonLabel() {
 	if (anonLabelID == UINT32_MAX) {
+		// LCOV_EXCL_START
 		error("Only %" PRIu32 " anonymous labels can be created!", anonLabelID);
 		return nullptr;
+		// LCOV_EXCL_STOP
 	}
 
 	std::string anon = sym_MakeAnonLabelName(0, true); // The direction is important!
@@ -555,6 +544,7 @@ std::string sym_MakeAnonLabelName(uint32_t ofs, bool neg) {
 	} else {
 		ofs--; // We're referencing symbols that haven't been created yet...
 		if (ofs > UINT32_MAX - anonLabelID) {
+			// LCOV_EXCL_START
 			error(
 			    "Reference to anonymous label %" PRIu32 " after, when only %" PRIu32
 			    " may still be created\n",
@@ -562,6 +552,7 @@ std::string sym_MakeAnonLabelName(uint32_t ofs, bool neg) {
 			    UINT32_MAX - anonLabelID
 			);
 		} else {
+			// LCOV_EXCL_STOP
 			id = anonLabelID + ofs;
 		}
 	}
@@ -571,8 +562,11 @@ std::string sym_MakeAnonLabelName(uint32_t ofs, bool neg) {
 
 void sym_Export(std::string const &symName) {
 	if (symName.starts_with('!')) {
+		// LCOV_EXCL_START
+		// The parser does not accept anonymous labels for an `EXPORT` directive
 		error("Anonymous labels cannot be exported\n");
 		return;
+		// LCOV_EXCL_STOP
 	}
 
 	Symbol *sym = sym_FindScopedSymbol(symName);
@@ -654,11 +648,13 @@ void sym_Init(time_t now) {
 	sym_AddEqu("__RGBDS_RC__"s, PACKAGE_VERSION_RC)->isBuiltin = true;
 #endif
 
+	// LCOV_EXCL_START
 	if (now == static_cast<time_t>(-1)) {
 		warn("Failed to determine current time");
 		// Fall back by pretending we are at the Epoch
 		now = 0;
 	}
+	// LCOV_EXCL_STOP
 
 	tm const *time_local = localtime(&now);
 

src/fix/main.cpp

@@ -54,6 +54,7 @@ static option const longopts[] = {
     {nullptr,            no_argument,       nullptr, 0  }
 };
 
+// LCOV_EXCL_START
 static void printUsage() {
 	fputs(
 	    "Usage: rgbfix [-hjOsVv] [-C | -c] [-f <fix_spec>] [-i <game_id>] [-k <licensee>]\n"
@@ -72,6 +73,7 @@ static void printUsage() {
 	    stderr
 	);
 }
+// LCOV_EXCL_STOP
 
 static uint8_t nbErrors;
 
@@ -1322,8 +1324,10 @@ int main(int argc, char *argv[]) {
 			break;
 
 		case 'h':
+			// LCOV_EXCL_START
 			printUsage();
 			exit(0);
+			// LCOV_EXCL_STOP
 
 		case 'i':
 			gameID = musl_optarg;

src/gfx/main.cpp

@@ -156,6 +156,7 @@ static option const longopts[] = {
     {nullptr,            no_argument,       nullptr, 0  }
 };
 
+// LCOV_EXCL_START
 static void printUsage() {
 	fputs(
 	    "Usage: rgbgfx [-r stride] [-ChmOuVXYZ] [-v [-v ...]] [-a <attr_map> | -A]\n"
@@ -174,6 +175,7 @@ static void printUsage() {
 	    stderr
 	);
 }
+// LCOV_EXCL_STOP
 
 // Parses a number at the beginning of a string, moving the pointer to skip the parsed characters.
 // Returns the provided errVal on error.
@@ -425,8 +427,10 @@ static char *parseArgv(int argc, char *argv[]) {
 			}
 			break;
 		case 'h':
+			// LCOV_EXCL_START
 			printUsage();
 			exit(0);
+			// LCOV_EXCL_STOP
 		case 'i':
 			if (!options.inputTileset.empty()) {
 				warning("Overriding input tileset file %s", options.inputTileset.c_str());
@@ -615,8 +619,10 @@ static char *parseArgv(int argc, char *argv[]) {
 			}
 			break;
 		default:
+			// LCOV_EXCL_START
 			printUsage();
 			exit(1);
+			// LCOV_EXCL_STOP
 		}
 	}
 

src/link/main.cpp

@@ -163,6 +163,7 @@ static option const longopts[] = {
     {nullptr,         no_argument,       nullptr, 0  }
 };
 
+// LCOV_EXCL_START
 static void printUsage() {
 	fputs(
 	    "Usage: rgblink [-dhMtVvwx] [-l script] [-m map_file] [-n sym_file]\n"
@@ -181,6 +182,7 @@ static void printUsage() {
 	    stderr
 	);
 }
+// LCOV_EXCL_STOP
 
 enum ScrambledRegion {
 	SCRAMBLE_ROMX,
@@ -335,8 +337,10 @@ int main(int argc, char *argv[]) {
 			isWRAM0Mode = true;
 			break;
 		case 'h':
+			// LCOV_EXCL_START
 			printUsage();
 			exit(0);
+			// LCOV_EXCL_STOP
 		case 'l':
 			if (linkerScriptName) {
 				warnx("Overriding linker script %s", linkerScriptName);
@@ -407,8 +411,10 @@ int main(int argc, char *argv[]) {
 			is32kMode = true;
 			break;
 		default:
+			// LCOV_EXCL_START
 			printUsage();
 			exit(1);
+			// LCOV_EXCL_STOP
 		}
 	}
 

test/asm/break.asm

@@ -7,6 +7,17 @@ FOR V, 1, 100
       PRINTLN "cont"
 ENDR
 WARN "done {d:V}"
+rept 2
+  break
+  ; skips nested code
+  rept 3
+    println "\tinner"
+  endr
+  if 1
+    println "\tconditional"
+  endc
+  println "outer"
+endr
 rept 1
   break
   ; skips invalid code

test/asm/break.err

@@ -1,8 +1,8 @@
 warning: break.asm(9): [-Wuser]
     done 5
-warning: break.asm(17): [-Wuser]
+warning: break.asm(28): [-Wuser]
     OK
-error: break.asm(18):
+error: break.asm(29):
     BREAK can only be used inside a REPT/FOR block
-FATAL: break.asm(19) -> break.asm::REPT~1(23):
+FATAL: break.asm(30) -> break.asm::REPT~1(34):
     Ended block with 1 unterminated IF construct

test/asm/invalid-utf-8-strings.asm

@@ -19,7 +19,7 @@ DEF copy EQUS STRSUB("{invalid}", 1)
 println "\"{#s:invalid}\" == \"{#s:copy}\" ({d:n})"
 
 DEF mid1 EQUS STRSUB("{invalid}", 5, 2)
-DEF mid2 EQUS STRSUB("{invalid}", 9, 1)
+DEF mid2 EQUS STRSLICE("{invalid}", 8, 9)
 println "\"{#s:mid2}{#s:mid1}\""
 
 ; characters:
@@ -53,3 +53,6 @@ println "\"{#s:invalid}\": {d:n} == {d:r}"
 
 DEF final EQUS STRSUB("{invalid}", 4, 1)
 println "\"{#s:invalid}\" ends \"{#s:final}\""
+
+REDEF final EQUS STRSLICE("{invalid}", 3, 4)
+println "\"{#s:invalid}\" ends \"{#s:final}\""

test/asm/invalid-utf-8-strings.err

@@ -15,9 +15,9 @@ error: invalid-utf-8-strings.asm(17):
 error: invalid-utf-8-strings.asm(17):
     STRSUB: Invalid UTF-8 byte 0xA2
 error: invalid-utf-8-strings.asm(22):
-    STRSUB: Invalid UTF-8 byte 0xA3
+    STRSLICE: Invalid UTF-8 byte 0xA3
 error: invalid-utf-8-strings.asm(22):
-    STRSUB: Invalid UTF-8 byte 0xA4
+    STRSLICE: Invalid UTF-8 byte 0xA4
 error: invalid-utf-8-strings.asm(35):
     STRLEN: Invalid UTF-8 byte 0xFE
 error: invalid-utf-8-strings.asm(35):
@@ -56,4 +56,6 @@ error: invalid-utf-8-strings.asm(50):
     STRLEN: Incomplete UTF-8 character
 error: invalid-utf-8-strings.asm(54):
     STRSUB: Incomplete UTF-8 character
-error: Assembly aborted (29 errors)!
+error: invalid-utf-8-strings.asm(57):
+    STRSLICE: Incomplete UTF-8 character
+error: Assembly aborted (30 errors)!

test/asm/invalid-utf-8-strings.out

@@ -4,3 +4,4 @@
 "漢<>"
 "abc<62><63>": 4 == 4
 "abc<62><63>" ends "<22><>"
+"abc<62><63>" ends "<22><>"

test/asm/macro-arg-illegal-escape.asm

@@ -0,0 +1,5 @@
+MACRO mac
+	DEF s EQUS "\#"
+	println "{#s:s}"
+ENDM
+mac \\\"\t\r\0\n\{\}\,\(\)\w\

test/asm/macro-arg-illegal-escape.err

@@ -1,5 +1,5 @@
-error: macro-arg-escape-chars.asm(5):
+error: macro-arg-illegal-escape.asm(5):
     Illegal character escape 'w'
-error: macro-arg-escape-chars.asm(5):
+error: macro-arg-illegal-escape.asm(5):
     Illegal character escape at end of input
 error: Assembly aborted (2 errors)!

test/asm/macro-arg-illegal-escape.out

@@ -0,0 +1 @@
+\\\"\t\r\0\n\{},()w\\

test/asm/raw-string-symbols.asm

@@ -28,7 +28,10 @@ purge #name
 assert !def(name) && !def(#name) && def(hello)
 
 section "test", rom0
-#label:
+
 db #hello
 dw #hello
+dl #hello
+
+#label:
 dw BANK(#label), #label

test/asm/unterminated-if-eof.asm

@@ -0,0 +1,2 @@
+if 0
+; no newline at end of file

test/asm/unterminated-if-eof.err

@@ -0,0 +1,2 @@
+FATAL: unterminated-if-eof.asm(2):
+    Ended block with 1 unterminated IF construct

test/gfx/test.sh

@@ -109,6 +109,10 @@ for f in *.[12]bpp; do
 	runTest && tryCmp "$f" result.2bpp || failTest $?
 done
 
+# Test writing to stdout
+newTest "$RGBGFX -m -o - write_stdout.bin > result.2bpp"
+runTest && tryCmp write_stdout.out.2bpp result.2bpp || failTest $?
+
 if [[ "$failed" -eq 0 ]]; then
 	echo "${bold}${green}All ${tests} tests passed!${rescolors}${resbold}"
 else

test/gfx/write_stdout.out.2bpp

@@ -0,0 +1 @@
+? @@˙Ś˙’˙€˙€đ‚đŹxG~A? ˙

ńâ~‚üřŕŕ