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Original commit message: In http://lists.llvm.org/pipermail/llvm-dev/2020-July/143257.html we have mentioned our plans to make some of the incremental compilation facilities available in llvm mainline. This patch proposes a minimal version of a repl, clang-repl, which enables interpreter-like interaction for C++. For instance: ./bin/clang-repl clang-repl> int i = 42; clang-repl> extern "C" int printf(const char*,...); clang-repl> auto r1 = printf("i=%d\n", i); i=42 clang-repl> quit The patch allows very limited functionality, for example, it crashes on invalid C++. The design of the proposed patch follows closely the design of cling. The idea is to gather feedback and gradually evolve both clang-repl and cling to what the community agrees upon. The IncrementalParser class is responsible for driving the clang parser and codegen and allows the compiler infrastructure to process more than one input. Every input adds to the “ever-growing” translation unit. That model is enabled by an IncrementalAction which prevents teardown when HandleTranslationUnit. The IncrementalExecutor class hides some of the underlying implementation details of the concrete JIT infrastructure. It exposes the minimal set of functionality required by our incremental compiler/interpreter. The Transaction class keeps track of the AST and the LLVM IR for each incremental input. That tracking information will be later used to implement error recovery. The Interpreter class orchestrates the IncrementalParser and the IncrementalExecutor to model interpreter-like behavior. It provides the public API which can be used (in future) when using the interpreter library. Differential revision: https://reviews.llvm.org/D96033 |
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bindings | ||
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examples | ||
include | ||
INPUTS | ||
lib | ||
runtime | ||
test | ||
tools | ||
unittests | ||
utils | ||
www | ||
.clang-format | ||
.clang-tidy | ||
.gitignore | ||
CMakeLists.txt | ||
CODE_OWNERS.TXT | ||
INSTALL.txt | ||
LICENSE.TXT | ||
ModuleInfo.txt | ||
NOTES.txt | ||
README.txt |
//===----------------------------------------------------------------------===// // C Language Family Front-end //===----------------------------------------------------------------------===// Welcome to Clang. This is a compiler front-end for the C family of languages (C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM compiler infrastructure project. Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer. If you're interested in more (including how to build Clang) it is best to read the relevant web sites. Here are some pointers: Information on Clang: http://clang.llvm.org/ Building and using Clang: http://clang.llvm.org/get_started.html Clang Static Analyzer: http://clang-analyzer.llvm.org/ Information on the LLVM project: http://llvm.org/ If you have questions or comments about Clang, a great place to discuss them is on the Clang development mailing list: http://lists.llvm.org/mailman/listinfo/cfe-dev If you find a bug in Clang, please file it in the LLVM bug tracker: http://llvm.org/bugs/