vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
//===- TokenRewriter.cpp - Token-based code rewriting interface -----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the TokenRewriter class, which is used for code
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// transformations.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Rewrite/Core/TokenRewriter.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Lex/Lexer.h"
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#include "clang/Lex/ScratchBuffer.h"
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#include "clang/Lex/Token.h"
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#include <cassert>
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#include <cstring>
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#include <map>
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#include <utility>
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using namespace clang;
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TokenRewriter::TokenRewriter(FileID FID, SourceManager &SM,
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const LangOptions &LangOpts) {
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ScratchBuf.reset(new ScratchBuffer(SM));
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// Create a lexer to lex all the tokens of the main file in raw mode.
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llvm::MemoryBufferRef FromFile = SM.getBufferOrFake(FID);
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Lexer RawLex(FID, FromFile, SM, LangOpts);
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// Return all comments and whitespace as tokens.
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RawLex.SetKeepWhitespaceMode(true);
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// Lex the file, populating our datastructures.
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Token RawTok;
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RawLex.LexFromRawLexer(RawTok);
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while (RawTok.isNot(tok::eof)) {
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#if 0
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if (Tok.is(tok::raw_identifier)) {
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// Look up the identifier info for the token. This should use
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// IdentifierTable directly instead of PP.
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PP.LookUpIdentifierInfo(Tok);
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}
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#endif
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AddToken(RawTok, TokenList.end());
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RawLex.LexFromRawLexer(RawTok);
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}
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}
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TokenRewriter::~TokenRewriter() = default;
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/// RemapIterator - Convert from token_iterator (a const iterator) to
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/// TokenRefTy (a non-const iterator).
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TokenRewriter::TokenRefTy TokenRewriter::RemapIterator(token_iterator I) {
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if (I == token_end()) return TokenList.end();
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// FIXME: This is horrible, we should use our own list or something to avoid
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// this.
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std::map<SourceLocation, TokenRefTy>::iterator MapIt =
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TokenAtLoc.find(I->getLocation());
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assert(MapIt != TokenAtLoc.end() && "iterator not in rewriter?");
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return MapIt->second;
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}
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/// AddToken - Add the specified token into the Rewriter before the other
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/// position.
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TokenRewriter::TokenRefTy
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TokenRewriter::AddToken(const Token &T, TokenRefTy Where) {
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Where = TokenList.insert(Where, T);
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bool InsertSuccess = TokenAtLoc.insert(std::make_pair(T.getLocation(),
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Where)).second;
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assert(InsertSuccess && "Token location already in rewriter!");
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(void)InsertSuccess;
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return Where;
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}
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TokenRewriter::token_iterator
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TokenRewriter::AddTokenBefore(token_iterator I, const char *Val) {
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unsigned Len = strlen(Val);
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// Plop the string into the scratch buffer, then create a token for this
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// string.
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Token Tok;
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Tok.startToken();
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const char *Spelling;
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Tok.setLocation(ScratchBuf->getToken(Val, Len, Spelling));
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Tok.setLength(Len);
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// TODO: Form a whole lexer around this and relex the token! For now, just
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// set kind to tok::unknown.
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Tok.setKind(tok::unknown);
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return AddToken(Tok, RemapIterator(I));
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}
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