LLVM

Advanced Clang Plugins

Deep dive into custom AST transformations, analysis frameworks, and plugin integration techniques

Explore Advanced Topics

Advanced Capabilities

AST Rewriting

Implement sophisticated code refactoring by manipulating Clang's abstract syntax tree directly.

AST Transformation Guide →

Custom Checkers

Create complex static analysis rules with clang Static Analyzer integration and bug patterns.

Analysis Checker Tutorial →

Tool Integration

Build custom diagnostic tools that integrate with clang-tidy, clang-format, and LLDB.

Tooling Integration Walkthrough →

AST Transformation Example

#include "clang/AST/ASTConsumer.h"
#include "clang/AST/RecursiveASTVisitor.h"

using namespace clang;

class MyASTVisitor : public ASTVisitor<MyASTVisitor> {
public:
  bool VisitFunctionDecl(FunctionDecl *D) {
    if (D->isThisDeclarationADefinition()) {
      // Custom AST modification
    }
    return true;
  }
};

class MyPlugin : public ASTConsumer {
public:
  MyPlugin(ASTContext &Context) : ASTConsumer(Context) {}
  virtual void HandleTranslationUnit(ASTContext &Context) {
    // Visitor implementation
    MyASTVisitor Visitor;
    Visitor.TraverseDecl(Context.getTranslationUnitDecl());
  }
};
                    

Advanced Tutorials

Interprocedural Analysis

Implement cross-function analysis and data flow tracking using Clang's CallGraph and Symbol tables.

Read Tutorial →

Diagnostics & Fix-Its

Generate intelligent warnings and automatic code fixes with custom diagnostic engines.

Read Tutorial →

Refactoring Tools

Build complex code refactorings with AST manipulation and source-to-source transformations.

Read Tutorial →

Performance Optimization

Profile and optimize plugin performance using LLVM's instrumentation and benchmarking tools.

Read Tutorial →

Contribute Advanced Features

Help improve Clang's plugin ecosystem by contributing complex analysis tools or AST transformation patterns.

Share Your Plugins