Questions tagged [libclang]
LibClang is a stable high level C interface to the clang compiler.
libclang
248
questions
2
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1
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How do I get the enum type of a clang::EnumConstantDecl?
I'm trying to write a clang tool that finds all calls to a function with a variable number of arguments, and returns the type of each argument.
When I pass in a constant enumerator value, for example:
...
- 95
2
votes
1
answer
46
views
Get relative include path for file with clang tooling
I'm using clang tooling to auto generate some code from an existing code base.
In some cases I have an enum type that I want to use, so I want to include it. I'm able to get the path to the file to ...
- 95
1
vote
1
answer
52
views
Get function call argument enum type with libclang
I'm using libclang to parse some code, and I want to find calls to a specific function and the types of its arguments.
For example, let's say the code is:
void foo(int a, ...) {}
enum test {
...
- 95
1
vote
1
answer
36
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How to parse multi-dimensional arrays with python libclang bindings
I'm having a difficult time with what, in my mind, should be a fairly simple task: Using the python bindings to libclang I want to get the dimensions for a multi-dimensional array field of a POD C++ ...
- 215
2
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2
answers
60
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Using libclang, is there a way to know if a closure type was introduced in the context of the initialization of a inline variable?
Given the following C++ code:
inline auto v = []{ return 1; }();
The context of the closure type is the initializer of an inline variable. This leads to a special mangling rule in the Itanium ABI (...
- 552
1
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1
answer
33
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libclang CXTranslationUnit_DetailedPreprocessingRecord doesn't affect parse
While trying to use the C libclang bindings to parse some sources, I have found that preprocessor directives do not show up in the AST.
Following recommendations from this previous question, and ...
- 41
1
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1
answer
52
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How to parse AST of C/C++ program having OpenACC pragma directives using clang and its Python bindings?
I want to parse the AST of a C/C++ program that has OpenACC pragma directives (see example below).
My eventual goal is to generate a JSON file having all the pairs of pragma-block of code the pragma ...
1
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2
answers
37
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clang AST for single line multiple variable declaration
I'm trying to use libclang from python to traverse the AST for the following snippet of C:
/* simple.c */
bool LED0 = 0; /* state0 */
bool LED1 = 0; /* state1 */
bool LED2 = 1; /* ...
- 8,793
1
vote
1
answer
69
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Clang LibTooling doesn't process any source files
I'm trying to run a minimal LibTooling example, but must be missing something obvious, because my AST visitor isn't getting called at all, and any errors in the input files aren't getting diagnosed.
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- 91.2k
0
votes
1
answer
124
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libClang.dll DllNotFoundException on Visual Studio Extensibility (VSX) project
Hellow there !
I am trying to use "CppAst.Net" nugget in a visual studio extensibility project, So far, when doing it in a classic c# project everything work fine, but when trying in a VSX ...
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2
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0
answers
121
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Libclang way slower to parse AST than -ast-dump option
I'm generating code by parsing the AST of my header files with libclang and I'm experiencing very long parsing time (30+ seconds on every files). I've tried -ast-dump=json and it's way faster. I start ...
- 1,851
0
votes
0
answers
53
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How to expand macros with python and libclang
Say I have the following C code.
#define A 0x1800
#define MACRO_FUNC(in) (A | (in))
#define B 6
#define MY_MACRO MACRO_FUNC(B)
How would I use libclang python bindings to expand MY_MACRO to (0x1800 |...
- 701
2
votes
1
answer
215
views
How can I get the fully qualified names of return types and argument types using libclang's python bindings?
Consider the following example. I use python clang_example.py to parse the header my_source.hpp for function and method declarations.
my_source.hpp
#pragma once
namespace ns {
struct Foo {
...
- 2,742
1
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0
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102
views
How do I get entire Data Layout for a class, using libclang?
I am trying to generate the Data Layout for a class. Specifically, I want
the size of an object of type X
the alignment of an object of type X
the offset within an object of type X of each data ...
- 28.2k
2
votes
1
answer
163
views
Using Libclang python bindings, how do you retrieve annotations added to C++ class/struct?
Using the following C++ struct as an example:
__attribute__((annotate("MyAttribute")))
struct TestComponent
{
__attribute__((annotate("MyAttribute")))
int32_t testInt;
...
- 141