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