From a7b7cf1dc25ff2bae60b62658055b5c955701959 Mon Sep 17 00:00:00 2001 From: practicalswift Date: Sun, 13 Nov 2016 12:49:30 +0100 Subject: [PATCH] [swiftc (129 vs. 5184)] Add crasher in swift::Parser::parseDeclPrecedenceGroup Add test case for crash triggered in `swift::Parser::parseDeclPrecedenceGroup`. Current number of unresolved compiler crashers: 129 (5184 resolved) Assertion failure in [`lib/Parse/Parser.cpp (line 332)`](https://github.com/apple/swift/blob/master/lib/Parse/Parser.cpp#L332): ``` Assertion `Tok.isNot(tok::eof) && "Lexing past eof!"' failed. When executing: swift::SourceLoc swift::Parser::consumeToken() ``` Assertion context: ``` return L->peekNextToken(); } SourceLoc Parser::consumeToken() { SourceLoc Loc = Tok.getLoc(); assert(Tok.isNot(tok::eof) && "Lexing past eof!"); if (IsParsingInterfaceTokens && !Tok.getText().empty()) { SF.recordInterfaceToken(Tok.getText()); } ``` Stack trace: ``` #0 0x00000000031d2438 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x31d2438) #1 0x00000000031d2c86 SignalHandler(int) (/path/to/swift/bin/swift+0x31d2c86) #2 0x00007ff9c3ba1330 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x10330) #3 0x00007ff9c235fc37 gsignal /build/eglibc-oGUzwX/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0 #4 0x00007ff9c2363028 abort /build/eglibc-oGUzwX/eglibc-2.19/stdlib/abort.c:91:0 #5 0x00007ff9c2358bf6 __assert_fail_base /build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:92:0 #6 0x00007ff9c2358ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2) #7 0x0000000000b34d95 (/path/to/swift/bin/swift+0xb34d95) #8 0x0000000000b0fa4d swift::Parser::parseDeclPrecedenceGroup(swift::OptionSet, swift::DeclAttributes&) (/path/to/swift/bin/swift+0xb0fa4d) #9 0x0000000000b0684a swift::Parser::parseDecl(swift::OptionSet, llvm::function_ref) (/path/to/swift/bin/swift+0xb0684a) #10 0x0000000000b6c3a9 swift::Parser::parseBraceItems(llvm::SmallVectorImpl&, swift::BraceItemListKind, swift::BraceItemListKind) (/path/to/swift/bin/swift+0xb6c3a9) #11 0x0000000000b27dd2 swift::Parser::parseExprClosure() (/path/to/swift/bin/swift+0xb27dd2) #12 0x0000000000b28752 swift::Parser::parseTrailingClosure(swift::SourceRange) (/path/to/swift/bin/swift+0xb28752) #13 0x0000000000b257df swift::Parser::parseExprList(swift::tok, swift::tok, bool, bool, swift::SourceLoc&, llvm::SmallVectorImpl&, llvm::SmallVectorImpl&, llvm::SmallVectorImpl&, swift::SourceLoc&, swift::Expr*&) (/path/to/swift/bin/swift+0xb257df) #14 0x0000000000b27306 swift::Parser::parseExprCallSuffix(swift::ParserResult, bool) (/path/to/swift/bin/swift+0xb27306) #15 0x0000000000b21c16 swift::Parser::parseExprPostfix(swift::Diag<>, bool) (/path/to/swift/bin/swift+0xb21c16) #16 0x0000000000b1fced swift::Parser::parseExprUnary(swift::Diag<>, bool) (/path/to/swift/bin/swift+0xb1fced) #17 0x0000000000b1f5e1 swift::Parser::parseExprSequenceElement(swift::Diag<>, bool) (/path/to/swift/bin/swift+0xb1f5e1) #18 0x0000000000b1e77e swift::Parser::parseExprSequence(swift::Diag<>, bool, bool) (/path/to/swift/bin/swift+0xb1e77e) #19 0x0000000000b1e637 swift::Parser::parseExprImpl(swift::Diag<>, bool) (/path/to/swift/bin/swift+0xb1e637) #20 0x0000000000b6aab6 swift::Parser::parseExprOrStmt(swift::ASTNode&) (/path/to/swift/bin/swift+0xb6aab6) #21 0x0000000000b6c770 swift::Parser::parseBraceItems(llvm::SmallVectorImpl&, swift::BraceItemListKind, swift::BraceItemListKind) (/path/to/swift/bin/swift+0xb6c770) #22 0x0000000000afc65a swift::Parser::parseTopLevel() (/path/to/swift/bin/swift+0xafc65a) #23 0x0000000000b33b00 swift::parseIntoSourceFile(swift::SourceFile&, unsigned int, bool*, swift::SILParserState*, swift::PersistentParserState*, swift::DelayedParsingCallbacks*) (/path/to/swift/bin/swift+0xb33b00) #24 0x0000000000938c43 swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0x938c43) #25 0x000000000047ece5 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef, int&, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x47ece5) #26 0x000000000047db7f swift::performFrontend(llvm::ArrayRef, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x47db7f) #27 0x000000000044509a main (/path/to/swift/bin/swift+0x44509a) #28 0x00007ff9c234af45 __libc_start_main /build/eglibc-oGUzwX/eglibc-2.19/csu/libc-start.c:321:0 #29 0x0000000000442816 _start (/path/to/swift/bin/swift+0x442816) ``` --- .../28502-tok-isnot-tok-eof-lexing-past-eof.swift | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 validation-test/compiler_crashers/28502-tok-isnot-tok-eof-lexing-past-eof.swift diff --git a/validation-test/compiler_crashers/28502-tok-isnot-tok-eof-lexing-past-eof.swift b/validation-test/compiler_crashers/28502-tok-isnot-tok-eof-lexing-past-eof.swift new file mode 100644 index 0000000000000..324e4641aa012 --- /dev/null +++ b/validation-test/compiler_crashers/28502-tok-isnot-tok-eof-lexing-past-eof.swift @@ -0,0 +1,10 @@ +// This source file is part of the Swift.org open source project +// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors +// Licensed under Apache License v2.0 with Runtime Library Exception +// +// See http://swift.org/LICENSE.txt for license information +// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors + +// RUN: not --crash %target-swift-frontend %s -emit-ir +// REQUIRES: asserts +e(){precedencegroup