dgoldman updated this revision to Diff 417623.
dgoldman marked 2 inline comments as done.
dgoldman added a comment.
Minor fixes
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D122179/new/
https://reviews.llvm.org/D122179
Files:
clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
clang/include/clang/Lex/PreprocessorOptions.h
clang/include/clang/Serialization/ASTBitCodes.h
clang/lib/Lex/PPLexerChange.cpp
clang/lib/Serialization/ASTReader.cpp
clang/lib/Serialization/ASTWriter.cpp
clang/test/Index/preamble-assume-nonnull.c
Index: clang/test/Index/preamble-assume-nonnull.c
===================================================================
--- /dev/null
+++ clang/test/Index/preamble-assume-nonnull.c
@@ -0,0 +1,6 @@
+// RUN: env CINDEXTEST_EDITING=1 c-index-test -test-load-source local %s 2>&1 \
+// RUN: | FileCheck %s --implicit-check-not "error:"
+
+#pragma clang assume_nonnull begin
+void foo(int *x);
+#pragma clang assume_nonnull end
Index: clang/lib/Serialization/ASTWriter.cpp
===================================================================
--- clang/lib/Serialization/ASTWriter.cpp
+++ clang/lib/Serialization/ASTWriter.cpp
@@ -872,6 +872,7 @@
RECORD(PP_CONDITIONAL_STACK);
RECORD(DECLS_TO_CHECK_FOR_DEFERRED_DIAGS);
RECORD(PP_INCLUDED_FILES);
+ RECORD(PP_ASSUME_NONNULL_LOC);
// SourceManager Block.
BLOCK(SOURCE_MANAGER_BLOCK);
@@ -2299,6 +2300,16 @@
Stream.EmitRecord(PP_COUNTER_VALUE, Record);
}
+ // If we have an unterminated #pragma assume_nonnull, remember it since we
+ // should be at the end of a preamble.
+ SourceLocation AssumeNonNullLoc = PP.getPragmaAssumeNonNullLoc();
+ if (AssumeNonNullLoc.isValid()) {
+ assert(PP.isRecordingPreamble());
+ AddSourceLocation(AssumeNonNullLoc, Record);
+ Stream.EmitRecord(PP_ASSUME_NONNULL_LOC, Record);
+ Record.clear();
+ }
+
if (PP.isRecordingPreamble() && PP.hasRecordedPreamble()) {
assert(!IsModule);
auto SkipInfo = PP.getPreambleSkipInfo();
Index: clang/lib/Serialization/ASTReader.cpp
===================================================================
--- clang/lib/Serialization/ASTReader.cpp
+++ clang/lib/Serialization/ASTReader.cpp
@@ -3109,6 +3109,7 @@
case IDENTIFIER_OFFSET:
case INTERESTING_IDENTIFIERS:
case STATISTICS:
+ case PP_ASSUME_NONNULL_LOC:
case PP_CONDITIONAL_STACK:
case PP_COUNTER_VALUE:
case SOURCE_LOCATION_OFFSETS:
@@ -3371,6 +3372,13 @@
}
break;
+ case PP_ASSUME_NONNULL_LOC: {
+ unsigned Idx = 0;
+ if (!Record.empty())
+ PP.setPragmaAssumeNonNullLoc(ReadSourceLocation(F, Record, Idx));
+ break;
+ }
+
case PP_CONDITIONAL_STACK:
if (!Record.empty()) {
unsigned Idx = 0, End = Record.size() - 1;
Index: clang/lib/Lex/PPLexerChange.cpp
===================================================================
--- clang/lib/Lex/PPLexerChange.cpp
+++ clang/lib/Lex/PPLexerChange.cpp
@@ -427,10 +427,16 @@
PragmaARCCFCodeAuditedInfo = {nullptr, SourceLocation()};
}
- // Complain about reaching a true EOF within assume_nonnull.
+ // Complain about reaching a true EOF.
+ //
// We don't want to complain about reaching the end of a macro
// instantiation or a _Pragma.
- if (PragmaAssumeNonNullLoc.isValid() &&
+ //
+ // In addition, we don't want to complain about reaching the end of the
+ // preamble that we're generating, nor the end of the preamble that the main
+ // file is using.
+ if (PragmaAssumeNonNullLoc.isValid() && !this->PPOpts->GeneratePreamble &&
+ !(CurLexer && CurLexer->getFileID() == PredefinesFileID) &&
!isEndOfMacro && !(CurLexer && CurLexer->Is_PragmaLexer)) {
Diag(PragmaAssumeNonNullLoc, diag::err_pp_eof_in_assume_nonnull);
Index: clang/include/clang/Serialization/ASTBitCodes.h
===================================================================
--- clang/include/clang/Serialization/ASTBitCodes.h
+++ clang/include/clang/Serialization/ASTBitCodes.h
@@ -698,6 +698,9 @@
/// Record code for included files.
PP_INCLUDED_FILES = 66,
+
+ /// Record code for an unterminated \#pragma clang assume_nonnull begin.
+ PP_ASSUME_NONNULL_LOC = 67,
};
/// Record types used within a source manager block.
Index: clang/include/clang/Lex/PreprocessorOptions.h
===================================================================
--- clang/include/clang/Lex/PreprocessorOptions.h
+++ clang/include/clang/Lex/PreprocessorOptions.h
@@ -128,7 +128,8 @@
///
/// When the lexer is done, one of the things that need to be preserved is the
/// conditional #if stack, so the ASTWriter/ASTReader can save/restore it when
- /// processing the rest of the file.
+ /// processing the rest of the file. Similarly, we track an unterminated
+ /// #pragma assume_nonnull.
bool GeneratePreamble = false;
/// Whether to write comment locations into the PCH when building it.
Index: clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
+++ clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
@@ -20,6 +20,7 @@
#include "index/MemIndex.h"
#include "support/Context.h"
#include "support/Path.h"
+#include "clang/AST/Attr.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/DiagnosticSema.h"
#include "llvm/Support/ScopedPrinter.h"
@@ -745,6 +746,19 @@
EXPECT_THAT(TU.build().getLocalTopLevelDecls(), SizeIs(1));
}
+TEST(DiagnosticsTest, PreambleWithPragmaAssumeNonnull) {
+ auto TU = TestTU::withCode(R"cpp(
+#pragma clang assume_nonnull begin
+void foo(int *x);
+#pragma clang assume_nonnull end
+)cpp");
+ auto AST = TU.build();
+ EXPECT_THAT(*AST.getDiagnostics(), IsEmpty());
+ const auto *X = cast<FunctionDecl>(findDecl(AST, "foo")).getParamDecl(0);
+ ASSERT_TRUE(X->getOriginalType()->getNullability(X->getASTContext()) ==
+ NullabilityKind::NonNull);
+}
+
TEST(DiagnosticsTest, InsideMacros) {
Annotations Test(R"cpp(
#define TEN 10
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