LibTooling is a library to support writing standalone tools based on Clang.
Questions tagged [libtooling]
152 questions
4
votes
1 answer
Clang tooling. Type name without keyword
I'm working on some clang tool, and I need to generate source code with types, that aren't specified explicitly.
The strings with types I get from clang::QualType is something like: class std::initializer_list. The issue is to get type without…
Yuriy
- 701
- 4
- 18
4
votes
0 answers
Uninstantiated function/class template ast is not generated by clang
I am working on a C/C++ parser based on clang libtooling.
I use the AST generated by clang to parse the code.
Recently what I observed is that for a template class or function which is not instantiated clang does not generate AST for that class or…
Hemant
- 767
- 6
- 20
3
votes
1 answer
How VisitNamedDecl and VisitCXXRecordDecl are called by RecursiveASTVisitor?
In RecursiveASTVisitors doc, there is are no virtual methods of name VisitNamedDecl, VisitCXXRecordDecl ..etc.
So how they are called automatically called ?
LightSith
- 795
- 12
- 27
3
votes
0 answers
Getting file not found error using clang LibASTMatchers
I am experiencing an issue with CLang's libastmatchers while working with Postgres sources: it can't find include file. This error is reproduced only when CLangTool is created from two files. If it is created for a separate file, there is no error…
Vadim Volodin
- 377
- 1
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- 14
3
votes
1 answer
When will a Clang AST node have multiple parents?
The class clang::ASTContext has a method:
DynTypedNodeList getParents(const NodeT &Node)
which returns a list of parent nodes of a given AST node.
Commonly AST as a tree will be a tree structure, but for some reasons (perhaps performance reasons)…
jw_
- 1,663
- 18
- 32
3
votes
2 answers
How do you obtain the instantiated CXXRecordDecl of a templated class in Clang?
For example, I have a class:
template
class Foo {
public:
T getBar();
private:
T bar_;
};
It is instantiated with:
using FooBarT = Foo;
How do I get the CXXRecordDecl with resolved fields and methods for Foo?
I…
Eric
- 730
- 4
- 16
3
votes
1 answer
How to get function pointer arguments names using clang LibTooling?
Say I analyze a code like this:
struct Foo
{
void(*setParam)(const char* name, int value);
};
I use clang LibTooling and get FieldDecl on a setParam.
I figured I can get argument types like so:
auto ft =…
Shens
- 43
- 5
3
votes
1 answer
How to use AST for both custom front-end action and clang static analysis
I am working on a libTooling based project where I have written a custom frontend action class by referring this. Now I want to run clang static analysis in the same tool. Currently, I am running the tool again for clang static analysis (after…
Hemant
- 767
- 6
- 20
3
votes
1 answer
Add memory file to clang CompilerInstance
I am trying to create a tool with clang and was wondering if it is possible to inject a include file from memory to the CompilerInstance preprocessor.
My goal is to add a #include to my files and dynamically include this file with…
mkaes
- 13,781
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- 72
3
votes
1 answer
Clang: write a function's AST from original file to a new file
I'm a novice for Clang who is trying to analyze AST via libtooling.
I want to find a particular function, and move its AST from original source file to a new file.
I've known how to find the function by MatchFinder.
Now, I was wondering how to…
ignorer
- 327
- 1
- 11
3
votes
1 answer
Replacements returning empty map in clang RefactoringTool
I have a MatchFinder defined as:
MatchFinder Finder;
Finder.addMatcher(FunctionCallMatcher, &printer);
And the DeclarationMatcher, and the MatchCallback are as below:
DeclarationMatcher FunctionCallMatcher =…
yaman
- 759
- 3
- 17
3
votes
1 answer
Why does clang create these implicit methods when a class contains a virtual method?
I'm working on a tool based on clang's AST, and I'm curious to know why clang works this way.
Here's my input. I have a very simple class that is defined like this:
class Foo {
int foo();
};
Then in my RecursiveASTVisitor, I have code that…
Chris
- 1,657
- 1
- 13
- 20
3
votes
1 answer
Clang libtooling: determine macro expansion location
I have a header header.h with a macro definition which expands into a class definition and a source file test.cpp which includes header.h and uses this macro. Then I use RecursiveASTVisitor to visit all CXXRecordDecl's.
When I visit the…
LVK
- 288
- 4
- 13
3
votes
0 answers
Function call extraction in a c code using Clang
I want to write a program which decomposes expressions (in a C code) in which they have function calls and extract each function call to variable. For example:
x = A() + B();
should be changed to :
a = A();
b = B();
x = a + b;
I'm writing it using…
NEO
- 2,145
- 2
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- 34
2
votes
1 answer
How to find the clang::SourceRange of a deleted function?
I am working on a Clang AST generated from the following source code:
struct has_deleted_function_member
{
void deleted_function1() = delete;
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ col:33
};
void deleted_function2() = delete;
//~~~~~~~~~~~~~~~~~~~~~^…
Jared Hoberock
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