зеркало из https://github.com/microsoft/clang-1.git
101 строка
4.0 KiB
HTML
101 строка
4.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
|
|
"http://www.w3.org/TR/html4/strict.dtd">
|
|
<html>
|
|
<head>
|
|
<title>Writing Clang Tools</title>
|
|
<link type="text/css" rel="stylesheet" href="../menu.css">
|
|
<link type="text/css" rel="stylesheet" href="../content.css">
|
|
</head>
|
|
<body>
|
|
<div id="content">
|
|
|
|
<h1>Writing Clang Tools</h1>
|
|
<p>Clang provides infrastructure to write tools that need syntactic and semantic
|
|
information about a program. This document will give a short introduction of the
|
|
different ways to write clang tools, and their pros and cons.</p>
|
|
|
|
<!-- ======================================================================= -->
|
|
<h2 id="libclang"><a href="http://clang.llvm.org/doxygen/group__CINDEX.html">LibClang</a></h2>
|
|
<!-- ======================================================================= -->
|
|
|
|
<p>LibClang is a stable high level C interface to clang. When in doubt LibClang
|
|
is probably the interface you want to use. Consider the other interfaces only
|
|
when you have a good reason not to use LibClang.</p>
|
|
<p>Canonical examples of when to use LibClang:</p>
|
|
<ul>
|
|
<li>XCode</li>
|
|
<li>Clang Python Bindings</li>
|
|
</ul>
|
|
<p>Use LibClang when you...</p>
|
|
<ul>
|
|
<li>want to interface with clang from other languages than C++</li>
|
|
<li>need a stable interface that takes care to be backwards compatible</li>
|
|
<li>want powerful high-level abstractions, like iterating throught an AST
|
|
with a cursor, and don't want to learn all the nitty gritty details of Clang's
|
|
AST.</li>
|
|
</ul>
|
|
<p>Do not use LibClang when you...</p>
|
|
<ul>
|
|
<li>want full control over the Clang AST</li>
|
|
</ul>
|
|
|
|
<!-- ======================================================================= -->
|
|
<h2 id="clang-plugins"><a href="http://clang.llvm.org/doxygen/classclang_1_1PluginASTAction.html">Clang Plugins</a></h2>
|
|
<!-- ======================================================================= -->
|
|
|
|
<p>Clang Plugins allow you to run additional actions on the AST as part of
|
|
a compilation. Plugins are dynamic libraries that are loaded at runtime by
|
|
the compiler, and they're easy to integrate into your build environment.</p>
|
|
<p>Canonical examples of when to use Clang Plugins:</p>
|
|
<ul>
|
|
<li>special lint-style warnings or errors for your project</li>
|
|
<li>creating additional build artifacts from a single compile step</li>
|
|
</ul>
|
|
<p>Use Clang Plugins when you...</p>
|
|
<ul>
|
|
<li>need your tool to rerun if any of the dependencies change</li>
|
|
<li>want your tool to make or break a build</li>
|
|
<li>need full control over the Clang AST</li>
|
|
</ul>
|
|
<p>Do not use Clang Plugins when you...</p>
|
|
<ul>
|
|
<li>want to run tools outside of your build environment</li>
|
|
<li>want full control on how Clang is set up, including mapping of in-memory
|
|
virtual files</li>
|
|
<li>need to run over a specific subset of files in your project which is not
|
|
necessarily related to any changes which would trigger rebuilds</li>
|
|
</ul>
|
|
|
|
<!-- ======================================================================= -->
|
|
<h2 id="libtooling"><a href="http://clang.llvm.org/doxygen/namespaceclang_1_1tooling.html">LibTooling</a></h2>
|
|
<!-- ======================================================================= -->
|
|
|
|
<p>LibTooling is a C++ interface aimed at writing standalone tools, as well as
|
|
integrating into services that run clang tools.</p>
|
|
<p>Canonical examples of when to use LibTooling:</p>
|
|
<ul>
|
|
<li>a simple syntax checker</li>
|
|
<li>refactoring tools</li>
|
|
</ul>
|
|
<p>Use LibTooling when you...</p>
|
|
<ul>
|
|
<li>want to run tools over a single file, or a specific subset of files,
|
|
independently of the build system</li>
|
|
<li>want full control over the Clang AST</li>
|
|
<li>want to share code with Clang Plugins</li>
|
|
</ul>
|
|
<p>Do not use LibTooling when you...</p>
|
|
<ul>
|
|
<li>want to run as part of the build triggered by dependency changes</li>
|
|
<li>want a stable interface so you don't need to change your code when the
|
|
AST API changes</li>
|
|
<li>want high level abstractions like cursors and code completion out of the
|
|
box</li>
|
|
<li>do not want to write your tools in C++</li>
|
|
</ul>
|
|
|
|
</div>
|
|
</body>
|
|
</html>
|
|
|