ClangCommentHTMLTagsEmitter.cpp source code [clang_source_code/utils/TableGen/ClangCommentHTMLTagsEmitter.cpp]

1	//===--- ClangCommentHTMLTagsEmitter.cpp - Generate HTML tag list for Clang -=//
2	//
3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4	// See https://llvm.org/LICENSE.txt for license information.
5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6	//
7	//===----------------------------------------------------------------------===//
8	//
9	// This tablegen backend emits efficient matchers for HTML tags that are used
10	// in documentation comments.
11	//
12	//===----------------------------------------------------------------------===//
13
14	#include "TableGenBackends.h"
15	#include "llvm/TableGen/Record.h"
16	#include "llvm/TableGen/StringMatcher.h"
17	#include "llvm/TableGen/TableGenBackend.h"
18	#include <vector>
19
20	using namespace llvm;
21
22	void clang::EmitClangCommentHTMLTags(RecordKeeper &Records, raw_ostream &OS) {
23	std::vector<Record *> Tags = Records.getAllDerivedDefinitions("Tag");
24	std::vector<StringMatcher::StringPair> Matches;
25	for (Record *Tag : Tags) {
26	Matches.emplace_back(Tag->getValueAsString("Spelling"), "return true;");
27	}
28
29	emitSourceFileHeader("HTML tag name matcher", OS);
30
31	OS << "bool isHTMLTagName(StringRef Name) {\n";
32	StringMatcher("Name", Matches, OS).Emit();
33	OS << " return false;\n"
34	<< "}\n\n";
35	}
36
37	void clang::EmitClangCommentHTMLTagsProperties(RecordKeeper &Records,
38	raw_ostream &OS) {
39	std::vector<Record *> Tags = Records.getAllDerivedDefinitions("Tag");
40	std::vector<StringMatcher::StringPair> MatchesEndTagOptional;
41	std::vector<StringMatcher::StringPair> MatchesEndTagForbidden;
42	for (Record *Tag : Tags) {
43	std::string Spelling = Tag->getValueAsString("Spelling");
44	StringMatcher::StringPair Match(Spelling, "return true;");
45	if (Tag->getValueAsBit("EndTagOptional"))
46	MatchesEndTagOptional.push_back(Match);
47	if (Tag->getValueAsBit("EndTagForbidden"))
48	MatchesEndTagForbidden.push_back(Match);
49	}
50
51	emitSourceFileHeader("HTML tag properties", OS);
52
53	OS << "bool isHTMLEndTagOptional(StringRef Name) {\n";
54	StringMatcher("Name", MatchesEndTagOptional, OS).Emit();
55	OS << " return false;\n"
56	<< "}\n\n";
57
58	OS << "bool isHTMLEndTagForbidden(StringRef Name) {\n";
59	StringMatcher("Name", MatchesEndTagForbidden, OS).Emit();
60	OS << " return false;\n"
61	<< "}\n\n";
62	}
63
64

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