LibTooling is a library to support writing standalone tools based on Clang.
Questions tagged [libtooling]
152 questions
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rewriting C/C++ code with clang LibTooling
I am new to clang and need some help to rewrite c and c++ code for a custom coverage tool I am developing. As I understand it, I think I need to link to clang's libTooling to make a stand alone executable to make something like a code…
johnco3
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1 answer
clang libtooling: Get Preprocessor object in clang libtool
I want to get macro names from my source files.
Going through a couple of answers I found that
clang::Preprocessor::getPredefines()
does the job.
Question is how to get preprocessor object in ClangTool?
Bhushan
- 354
- 9
- 25
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Match multiple `FieldDecl` inside a `CXXRecordDecl`
I am trying to capture all structs that look like:
struct Obj1 {
int field1;
double field2;
template
void serialize(Ar& ar) {
::serializer(ar, field1, field2);
}
};
I would like to match all structs with a template…
xis
- 24,330
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1 answer
How can I get main source file path from MatchCallback::onStartOfTranslationUnit()?
For now I can get it only in MatchCallback::run(const MatchResult& r):
r.SourceManager.getFileEntryForID(r.SourceManager.getMainFileID())->getName().str()
and cache for future use. But I might need it in my MatchCallback subclass even if no matches…
dimgel
- 61
- 1
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Is it possible to compile Clang LibTooling into standalone library?
I`m trying to find best solution for parsing C++ code for my refactor support tool. I decided to use clang frontend because it is meant to be frontend of C++ compiler. I found the documentation page that describes parsing of C++ code using clang…
vsemenyakin
- 53
- 6
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clang LibTooling: weird include paths in Clang Invocation ---> clang's headers not found
I'm trying to make simple working tool with SyntaxOnlyAction and custom CompilationDatabase subclass which returns single file and command: clang++ -c -v -o target/test-object.cpp.o test-object.cpp.
But unless I add -I/usr/lib/clang/14.0.6/include…
dimgel
- 61
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- 7
0
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0 answers
Replacement error calculating replacement in clang
I'm trying to refactor if-else branches and am unable to generate accurate Replacements for it. I try to fetch nodes using:
clang::IfStmt *ifstmt = const_cast(
…
gPats
- 315
- 2
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0
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1 answer
How to find method declarations in LibTooling?
I'm writing a program in LibTooling to print information of all functions, including methods in classes. But it seems VisitFunctionDecl() only detects functions outside a class. I also tried VisiCXXMethodDecl(),
bool VisiCXXMethodDecl(CXXMethodDecl…
潇洒张
- 273
- 2
- 9
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How to invoke the clang compiler from my clang tool
I have an existing and working source-to-source code modification tool using libtooling (written in C++). Now I want to integrate this tool into clang, so users can compile the modified source code without actually saving it somewhere.
The…
D_D
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- 1
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How to run LLVM's Pass with new Pass Builder on IR by calling the LLVM API in program?
By using opt, we can run a custom pass, or run a -O1 -O2 -O3 pass pipeline on a foo.ll file, but it all happens on the command line, and the IR is a file form.This is not conducive to some optimization of IR in the form of memory (each IR file is a…
StudyingCui
- 21
- 2
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0 answers
Incomplete TranslationUnit with libclang CXTranslationUnit_SingleFileParse
I'm trying to parse a single C++ file that looks as follows:
#include
#include
#include "foo.h"
std::unique_ptr FooBar::baz(std::wstring const& text)
{
auto result = std::make_unique(text.length() + 1);
…
DEls
- 241
- 3
- 14
0
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1 answer
`clang::PluginASTAction` with `clang::tooling::runToolOnCode` produce string output (for tests)?
With clang::tooling::runToolOnCode I can provide std::string input but I only get a bool output.
static const char
*const from = "#include \n"
"int main(void) {\n"
" for(int i=0; i
Samuel Marks
- 1,611
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C++ Source-to-Source Transformation with Clang
I am working on a project for which I need to "combine" code distributed over multiple C++ files into one file. Due to the nature of the project, I only need one entry function (the function that will be defined as the top function in the Xilinx…
Sam
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How to link to Libtooling with cmake
According to docs, I have following cmake project
cmake_minimum_required(VERSION 3.5)
project(teeest LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
find_package(LLVM REQUIRED)
find_package(Clang…
너를 속였다
- 899
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0
votes
2 answers
Processing standalone source files in a complex CMake structure with clang LibTooling
I wrote my own clang tool following https://clang.llvm.org/docs/LibASTMatchersTutorial.html
The purpose of the tool is to generate diagrams based on specific source files. Until now as a prototype I worked with some basic cpp code which didn't have…
Rngaddict
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