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Questions tagged [libtooling]

LibTooling is a library to support writing standalone tools based on Clang.

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Create a new LabelDecl and add to Clang AST

I have a problem inserting LabelDecl. My goal is to create a goto statement in the program and to do that, first I need to create LabelDecl and add it to Clang AST. There is an API to Create Label, but I am not able to get the IdentifierInfo. static…
Bernard Nongpoh
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RecursiveASTVisitor not visiting clang::VarDecl

I have the following c code test1.c: double multiply(double x, double y) { return x * y * y; } int main(int argc, char const *argv[]) { double a; int b; float d; double x = 3.0; double y = 5.0; double z =…
puhniste
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Libclang: Get Symbol (e.g. function) at SourceLocation

I want to write a refactor tool, where I want to move the function at the cursor(cursor is in the function name) to the source file. I found the FunctionMover.cc in https://github.com/lanl/CoARCT which is a good starting point to move the…
veio
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Clang libtooling header errors

My project which uses clang-libtooling fails to compile due to errors that come form the headers. The error is: C:\llvm\llvm\include\llvm\Support\MathExtras.h(372,31): error C4146: unary minus operator applied to unsigned type, result still…
Kivi
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Definition data of ClassTemplateSpecializationDecl is null

I recieve a class alt::VectorLayout for example, as a ClassTemplateSpecializationDecl and I'm trying to process the field and methods of the class, but it fails on an assertion where the definition data is null. I have the presumption that…
7Hazard
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Clang libtooling: how to print compiler macro definitions

I have a LibTooling based utility and I would like to output a list of macro definitions for debug purposes. One can print compiler macro definitions with clang/gcc -dM -E -, but it does not seem to work if I pass -dM -E or -dD to ClangTool. Is it…
Victor K
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Enable only syntactic parsing in clang

I am trying to implement a clang tool that does syntactic analysis using ASTMatcher API. I am trying to find out how to specify extra flags for clang to disable semantic checks. I know clang builds a giant AST which includes system headers. Is there…
gPats
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Is it possible to use Clang libtooling with other compilers?

We have a product which targets a large variety of platforms. Compilation for some of those platforms is using MSVC rather than clang. We are using the clang libtooling interface where we provide a compile_commands.json file to indicate how to…
Justin
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Usage of ParentMap in Clang

There seems to be no examples online, according to the documentation Path, ParentMap's constructor accepts "Stmt *ASTRoot", which may means that later the ParentMap instance will find parents under the AST subtree under "ASTRoot". But how to get the…
jw_
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How to enable try-catch in clang libtooling?

I wanted to use try catch statement in clang libtooling,but by default it is taking compiling options as -fno-rtti and -fno-exceptions If I use the try-catch statement in clang libtooling , It is throwing error…
Jon marsh
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Failing to dyn_cast Expression pointer to DeclRefExpr in clang

I m working on clang libtooling, I needed the left hand side of the assignment operation , So I used VisitBinaryOperator(BinaryOperator *B) to get the left hand side , I did some research on it and implemented in the following way bool…
Jon marsh
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How to get the macro and its expansion with clang libtooling?

I am working on clang libtooling. So far I am managed to get the macro where it is getting referred in the source file through visitDeclRefExpr(DeclRefExpr *DR) But can I get a list of macros with its name and its expansion as…
Jon marsh
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Prebuilt libTooling (LLVM/Clang tools) headers and dlls for Windows with RTTI on

This might not be the right place to ask this question, but I could not find an answer anywhere else. I want to create a static-analyzer with the libTooling library, outside of the llvm source tree. On the official llvm site, I only found prebuilt…
Bako
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Is there any way I can find all macro expansion location?

I want to find all macro expansion location to replace the definition of macro. I don't know what API I can use to get the macro expansion location. #include #define NUM 5 int main(void) { int i; int j = NUM; int a[NUM] = {0}; …
yxh
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How to expand a complex typedef to its basic built-in form using clang?

I want to be able to get the original type from the complex typedef. I'm using clang version 7.1.0 Look at the code below typedef unsigned int uint32; typedef uint32 * p_uint32; p_uint32 p_uint_var; I can extract type of p_uint_var using…
fskoras
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