Ilya Biryukov b736969edd [Syntax] Introduce syntax trees
Summary:
A tooling-focused alternative to the AST. This commit focuses on the
memory-management strategy and the structure of the AST.

More to follow later:
  - Operations to mutate the syntax trees and corresponding textual
    replacements.
  - Mapping between clang AST nodes and syntax tree nodes.
  - More node types corresponding to the language constructs.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: llvm-commits, mgorny, cfe-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D61637

llvm-svn: 365355
2019-07-08 17:25:02 +00:00

34 lines
1.1 KiB
C++

//===- Nodes.cpp ----------------------------------------------*- C++ -*-=====//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "clang/Tooling/Syntax/Nodes.h"
#include "clang/Basic/TokenKinds.h"
using namespace clang;
llvm::raw_ostream &syntax::operator<<(llvm::raw_ostream &OS, NodeKind K) {
switch (K) {
case NodeKind::Leaf:
return OS << "Leaf";
case NodeKind::TranslationUnit:
return OS << "TranslationUnit";
case NodeKind::TopLevelDeclaration:
return OS << "TopLevelDeclaration";
case NodeKind::CompoundStatement:
return OS << "CompoundStatement";
}
llvm_unreachable("unknown node kind");
}
syntax::Leaf *syntax::CompoundStatement::lbrace() {
return llvm::cast_or_null<syntax::Leaf>(findChild(Roles::lbrace));
}
syntax::Leaf *syntax::CompoundStatement::rbrace() {
return llvm::cast_or_null<syntax::Leaf>(findChild(Roles::rbrace));
}