私は小さなコンパイラを書いていますが、現在、すべての依存オブジェクト ファイルを生成しない cmake に行き詰まっています。
のみmain.cpp
がコンパイルされます:
#include <iostream>
#include "lexer.h"
#include "parser.h"
int main() {
Lexer lexer(&std::cin);
Parser parser(&lexer);
parser.binaryOpPrecedence['<'] = 10;
parser.binaryOpPrecedence['+'] = 20;
parser.binaryOpPrecedence['-'] = 20;
parser.binaryOpPrecedence['*'] = 40;
std::cerr << "ready> ";
parser.getNextToken();
parser.parse();
return 0;
}
私CMakeLists.txt
は次のとおりです(サブディレクトリ):
set(SOURCE_FILES
${PROJECT_SOURCE_DIR}/src/ast/binary.h
${PROJECT_SOURCE_DIR}/src/ast/call.h
${PROJECT_SOURCE_DIR}/src/ast/expression.h
${PROJECT_SOURCE_DIR}/src/ast/function.h
${PROJECT_SOURCE_DIR}/src/ast/number.h
${PROJECT_SOURCE_DIR}/src/ast/prototype.h
${PROJECT_SOURCE_DIR}/src/ast/variable.h
${PROJECT_SOURCE_DIR}/src/lexer.cpp
${PROJECT_SOURCE_DIR}/src/parser.cpp
PARENT_SCOPE
)
add_executable(kaleidoscope main.cpp ${SOURCE_FILES})
前述のように、 onlyはにコンパイルされますが、 andにmain.cpp
はコンパイルされmain.cpp.o
ないため、リンカは未解決のシンボルでクラッシュします。わからない、私が間違ったことをした。lexer.cpp
parser.cpp
/usr/bin/cmake --build /home/patkar/.clion10/system/cmake/generated/d6bd25de/d6bd25de/Debug --target kaleidoscope -- -j 4
Scanning dependencies of target kaleidoscope
[100%] Building CXX object src/CMakeFiles/kaleidoscope.dir/main.cpp.o
Linking CXX executable kaleidoscope
CMakeFiles/kaleidoscope.dir/main.cpp.o: In function `Lexer':
/home/patkar/workspace/compiler-fun/kaleidoscope/src/lexer.h:49: undefined reference to `vtable for Lexer'
CMakeFiles/kaleidoscope.dir/main.cpp.o: In function `main':
/home/patkar/workspace/compiler-fun/kaleidoscope/src/main.cpp:36: undefined reference to `Parser::parse()'
CMakeFiles/kaleidoscope.dir/main.cpp.o: In function `~Lexer':
/home/patkar/workspace/compiler-fun/kaleidoscope/src/lexer.h:38: undefined reference to `vtable for Lexer'
/home/patkar/workspace/compiler-fun/kaleidoscope/src/lexer.h:38: undefined reference to `vtable for Lexer'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [src/kaleidoscope] Error 1
make[2]: *** [src/CMakeFiles/kaleidoscope.dir/all] Error 2
make[1]: *** [src/CMakeFiles/kaleidoscope.dir/rule] Error 2
make: *** [kaleidoscope] Error 2