llvm-project/clang/test/Modules/objc-method-redecl.m

// RUN: rm -rf %t
// RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -x objective-c-header -emit-pch %S/Inputs/objc-method-redecl.h -o %t.pch -Wno-objc-root-class
// RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -x objective-c -include-pch %t.pch %s -verify -Wno-objc-root-class
// expected-no-diagnostics

@implementation T
- (void)test {
}
@end
Make AST reading work better with LLVM_APPEND_VC_REV=NO With LLVM_APPEND_VC_REV=NO, Modules/merge-lifetime-extended-temporary.cpp would fail if it ran before a0f50d731639350c7a7 (which changed the serialization format) and then after, for these reasons: 1. With LLVM_APPEND_VC_REV=NO, the module hash before and after the change was the same. 2. Modules/merge-lifetime-extended-temporary.cpp is the only test we have that uses -fmodule-cache-path=%t that a) actually writes to the cache path b) doesn't do `rm -rf %t` at the top of the test So the old run would write a module file, and then the new run would try to load it, but the serialized format changed. Do several things to fix this: 1. Include clang::serialization::VERSION_MAJOR/VERSION_MINOR in the module hash, so that when the AST format changes (...and we remember to bump these), we use a different module cache dir. 2. Bump VERSION_MAJOR, since a0f50d731639350c7a7 changed the on-disk format in a way that a gch file written before that change can't be read after that change. 3. Add `rm -rf %t` to all tests that pass -fmodule-cache-path=%t. This is unnecessary from a correctness PoV after 1 and 2, but makes it so that we don't amass many cache dirs over time. (Arguably, it also makes it so that the test suite doesn't catch when we change the serialization format but don't bump clang::serialization::VERSION_MAJOR/VERSION_MINOR; oh well.) Differential Revision: https://reviews.llvm.org/D73202 2020-01-22 23:34:34 +08:00			`// RUN: rm -rf %t`
ObjectiveC: fix a seg fault when deserialing redeclaration of ObjCMethodDecl. The deserialization of redeclartion can cause seg fault since getCanonicalDecl of the redeclaration returns the lookup result on the ObjCContainerDecl, which can be null if FindExternalVisibleDeclsByName is not done updating the lookup results. The fix is to return the redeclaration itself as the canonical decl. Note that the handling for redeclaration of ObjCMethodDecl is not in line with other redeclarables. rdar://28488466 llvm-svn: 283145 2016-10-04 05:26:46 +08:00			`// RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -x objective-c-header -emit-pch %S/Inputs/objc-method-redecl.h -o %t.pch -Wno-objc-root-class`
			`// RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -x objective-c -include-pch %t.pch %s -verify -Wno-objc-root-class`
			`// expected-no-diagnostics`

			`@implementation T`
			`- (void)test {`
			`}`
			`@end`