省略了来自clang的代码块AST for ObjectiveC [英] Omitted code blocks from clang AST for ObjectiveC

问题描述

我在.m文件上生成目标C代码的AST
该命令大致类似于 clang-check -ast-dump /source/file.m& /output/file.txt

I was generating AST for Objective C code on a .m file The command is roughly like clang-check -ast-dump /source/file.m &> /output/file.txt

它有一个错误，说

Error while trying to load a compilation database: Could not auto-detect compilation database for file '/source/file.m' 

No compilation database found in /source or any parent directory 

json-compilation-database: Error while opening JSON database: No such file or directory

Running without flags.

In file included from /source .. fatal error:'UIKit/UIKit.h' file not found

我不知道它是否与上面抛出的错误有关，但是我的许多CompoundStmt块都是空的。如果它们包含C或C ++代码，那么它们反映在CompoundStmt中，但是当它包含如 NSString * query = [NSString stringWithFormat：@select * from peopleInfo where peopleInfoID =％d，self。 recordIDToEdit] 或甚至 NSString * abc =ABC

I'm not sure if it's related to the error thrown above, but many of my CompoundStmt blocks are empty. If they contain C or C++ code then they are reflected in the CompoundStmt, but not when it contains code like NSString *query = [NSString stringWithFormat:@"select * from peopleInfo where peopleInfoID=%d, self.recordIDToEdit] or even NSString *abc = "ABC"

推荐答案

你需要生成一个称为编译数据库的东西。对于Clang它将是一个json文件（默认名称：compile_commands.json）

You need to generate something called a compilation database. For Clang it will be a json file (default name: compile_commands.json)

此处。

基于C ++抽象语法树的工具需要完整的信息如何
来解析翻译单元通常这个信息是隐式的
在构建系统中可用，但运行工具作为一部分build
系统不一定是最好的解决方案。

Tools based on the C++ Abstract Syntax Tree need full information how to parse a translation unit. Usually this information is implicitly available in the build system, but running tools as part of the build system is not necessarily the best solution.

编译数据库是一个JSON文件，它由
命令对象，其中每个命令对象指定在项目中编译
翻译单元的一种方式。

A compilation database is a JSON file, which consist of an array of "command objects", where each command object specifies one way a translation unit is compiled in the project.

看起来像：

[
  {
    "directory": "/source",
    "command": "clang++ <file>.m",
    "file": "/source/div0.c"
  }
]

您可以在这里阅读 和此处如何设置编译数据库。

You can read here and here on how to setup a compilation database.

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