llvm-project/clang/test/SemaTemplate
Richard Smith 7ae1b4a0ce Implement P1766R1: diagnose giving non-C-compatible classes a typedef name for linkage purposes.
Summary:
Due to a recent (but retroactive) C++ rule change, only sufficiently
C-compatible classes are permitted to be given a typedef name for
linkage purposes. Add an enabled-by-default warning for these cases, and
rephrase our existing error for the case where we encounter the typedef
name for linkage after we've already computed and used a wrong linkage
in terms of the new rule.

Reviewers: rjmccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74103
2020-02-07 11:47:37 -08:00
..
ackermann.cpp
address-spaces.cpp
address_space-dependent.cpp Add support for the MS qualifiers __ptr32, __ptr64, __sptr, __uptr. 2019-12-18 10:41:12 -08:00
alias-church-numerals.cpp
alias-nested-nontag.cpp
alias-template-template-param.cpp
alias-templates.cpp Always deduce the lengths of contained parameter packs when deducing a 2020-01-06 17:24:29 -08:00
alignas.cpp PR35028: Retain duplicate alignas attributes in template instantiation. 2018-01-04 01:02:18 +00:00
ambiguous-ovl-print.cpp
anonymous-union.cpp
argument-dependent-lookup.cpp [NFC] Explicitly add -std=c++14 option to tests that rely on the C++14 default 2019-02-05 12:05:53 +00:00
array-redeclaration.cpp [Sema] Don't diagnose an array type mismatch when the new or previous 2016-09-01 01:03:21 +00:00
array-to-pointer-decay.cpp
atomics.cpp
attributes.cpp Append new attributes to the end of an AttributeList. 2018-08-03 01:21:16 +00:00
canonical-expr-type-0x.cpp
canonical-expr-type.cpp
class-template-ctor-initializer.cpp
class-template-decl.cpp [NFC] Explicitly add -std=c++14 option to tests that rely on the C++14 default 2019-02-05 12:05:53 +00:00
class-template-id-2.cpp
class-template-id.cpp
class-template-spec.cpp Implement C++ DR727, which permits explicit specializations at class scope. 2018-03-16 13:36:56 +00:00
constexpr-instantiate.cpp Customize the SFINAE diagnostics for enable_if to provide the failed condition. 2017-07-05 20:20:14 +00:00
constructor-template.cpp
copy-ctor-assign.cpp
crash-8204126.cpp
crash-10438657.cpp
crash-unparsed-exception.cpp [Sema] Prevent InstantiateClass from checking unrelated exception specs. 2017-09-21 19:54:12 +00:00
crash.cpp
ctad.cpp PR41427: This has apparently been fixed already, just add a regression 2019-04-24 23:45:56 +00:00
current-instantiation.cpp
cxx1z-decomposition.cpp P0217R3: template instantiation support for decomposition declarations. 2016-08-12 01:55:21 +00:00
cxx1z-fold-expressions.cpp PR41845: Detect and reject mismatched inner/outer pack expansion sizes 2019-05-13 08:31:14 +00:00
cxx1z-using-declaration.cpp When diagnosing an ambiguity, only note the candidates that contribute 2019-10-24 14:58:29 -07:00
cxx2a-constraint-caching.cpp [Concepts] Deprecate -fconcepts-ts, enable Concepts under -std=c++2a 2020-01-24 00:48:59 +02:00
cxx2a-constraint-exprs.cpp [Concepts] Transform constraints of non-template functions to ConstantEvaluated 2020-01-25 23:00:24 +02:00
cxx17-inline-variables.cpp In C++17, when instantiating an out-of-line definition of an inline static data 2018-01-10 23:08:26 +00:00
deduction-crash.cpp [Sema] Fix an assert-on-invalid by avoiding function template specialisation 2017-10-27 18:13:31 +00:00
deduction.cpp Fix pack deduction to only deduce the arity of packs that are actually 2020-01-15 16:21:08 -08:00
default-arguments-cxx0x.cpp Push lambda scope earlier when transforming lambda expression 2019-09-17 01:43:33 +00:00
default-arguments.cpp Mark declarations as referenced by a default argument in a 2019-06-11 23:51:46 +00:00
default-expr-arguments-2.cpp Re-commit r321223, which adds a printing policy to the ASTDumper. 2017-12-21 21:42:42 +00:00
default-expr-arguments-3.cpp Re-commit r321223, which adds a printing policy to the ASTDumper. 2017-12-21 21:42:42 +00:00
default-expr-arguments.cpp
delegating-constructors.cpp
dependent-base-classes.cpp [c++20] Implement P0846R0: allow (ADL-only) calls to template-ids whose 2019-05-09 03:31:27 +00:00
dependent-base-member-init.cpp
dependent-class-member-operator.cpp
dependent-expr.cpp Fix crash when checking a dependently-typed reference that is 2019-06-17 21:46:17 +00:00
dependent-names-no-std.cpp
dependent-names.cpp Reapply "Fix crash on switch conditions of non-integer types in templates" 2019-12-03 15:27:19 -08:00
dependent-sized_array.cpp
dependent-template-recover.cpp Make tentative parsing to detect template-argument-lists less aggressive 2019-05-15 23:36:14 +00:00
dependent-type-identity.cpp Fix crash if StmtProfile finds a type-dependent member access for which we have 2016-10-24 18:47:04 +00:00
derived.cpp
destructor-template.cpp [Sema] Fixes a crash with a templated destructor 2019-11-07 21:22:27 +01:00
elaborated-type-specifier.cpp
enum-argument.cpp Reapply "Fix crash on switch conditions of non-integer types in templates" 2019-12-03 15:27:19 -08:00
enum-bool.cpp
enum-forward.cpp
example-typelist.cpp
exception-spec-crash.cpp P1286R2: Remove restriction that the exception specification of a 2019-05-06 05:04:56 +00:00
explicit-instantiation.cpp Switch to gnu++14 as the default dialect. 2017-12-09 12:09:54 +00:00
explicit-specialization-member.cpp CWG issue 727: Fix numerous bugs in support for class-scope explicit 2019-05-03 23:51:38 +00:00
ext-vector-type.cpp
ext_ms_template_spec.cpp Implement C++ DR727, which permits explicit specializations at class scope. 2018-03-16 13:36:56 +00:00
extension-sfinae.cpp
extern-templates.cpp Don't suppress instantiation of definitions for variables subject to explicit 2017-10-18 22:45:01 +00:00
fibonacci.cpp
friend-template.cpp Revert "Address http://bugs.llvm.org/pr30994 so that a non-friend can properly replace a friend, and a visible friend can properly replace an invisible friend but not vice verse, and definitions are not replaced. This fixes the two FIXME in SemaTemplate/friend-template.cpp." 2017-04-17 20:57:40 +00:00
friend.cpp Remember to instantiate explicit template argument lists in a friend 2019-01-11 01:59:33 +00:00
fun-template-def.cpp
function-pointer-qualifier.cpp [Sema] Do not match function type with const T in template argument deduction 2018-05-03 01:43:23 +00:00
function-template-specialization-noreturn.cpp
function-template-specialization.cpp Implement C++ DR727, which permits explicit specializations at class scope. 2018-03-16 13:36:56 +00:00
implicit-instantiation-1.cpp
inject-templated-friend-post.cpp
inject-templated-friend.cpp
injected-class-name.cpp PR13403 (+duplicates): implement C++ DR1310 (http://wg21.link/cwg1310). 2017-01-19 21:00:13 +00:00
instantiate-abbreviated-template.cpp [Concepts] Fix incorrect check when instantiating abbreviated template type-constraints 2020-02-06 23:29:07 +02:00
instantiate-after-fatal-cxx17.cpp [c++17] Fix assertion on synthesizing deduction guides after a fatal error. 2018-05-14 22:49:44 +00:00
instantiate-anonymous-union.cpp
instantiate-array.cpp
instantiate-attr.cpp
instantiate-c99.cpp [c++20] Implement semantic restrictions for C++20 designated 2019-08-30 22:52:55 +00:00
instantiate-call.cpp
instantiate-case.cpp
instantiate-cast.cpp [Diagnostics] Improve some error messages related to bad use of dynamic_cast 2019-11-04 16:26:43 +01:00
instantiate-clang.cpp
instantiate-complete.cpp
instantiate-decl-dtor.cpp
instantiate-decl-init.cpp
instantiate-declref-ice.cpp
instantiate-declref.cpp
instantiate-deeply.cpp
instantiate-default-assignment-operator.cpp
instantiate-dependent-nested-name.cpp
instantiate-elab-type-specifier.cpp
instantiate-enum-2.cpp
instantiate-enum.cpp PR13403 (+duplicates): implement C++ DR1310 (http://wg21.link/cwg1310). 2017-01-19 21:00:13 +00:00
instantiate-exception-spec-cxx11.cpp DR1330: instantiate exception-specifications when "needed". We previously did 2016-10-18 23:39:12 +00:00
instantiate-exception-spec.cpp
instantiate-expanded-type-constraint.cpp [Concepts] Deprecate -fconcepts-ts, enable Concepts under -std=c++2a 2020-01-24 00:48:59 +02:00
instantiate-explicitly-after-fatal.cpp
instantiate-expr-1.cpp
instantiate-expr-2.cpp
instantiate-expr-3.cpp When diagnosing an ambiguity, only note the candidates that contribute 2019-10-24 14:58:29 -07:00
instantiate-expr-4.cpp Check for qualified function types after substituting into the operand 2019-10-03 18:55:23 +00:00
instantiate-expr-5.cpp
instantiate-expr-6.cpp
instantiate-expr-basic.cpp
instantiate-field.cpp
instantiate-friend-class.cpp
instantiate-friend-function.cpp PR43400: Add test that we can instantiate a friend function that is 2019-10-27 12:41:53 -07:00
instantiate-function-1.cpp
instantiate-function-1.mm
instantiate-function-2.cpp Implement P1766R1: diagnose giving non-C-compatible classes a typedef name for linkage purposes. 2020-02-07 11:47:37 -08:00
instantiate-function-params.cpp Renamed and changed the wording of warn_cconv_ignored 2019-07-17 20:41:26 +00:00
instantiate-incomplete-typo-suggested-error-limit.cpp Fixes an assertion while instantiating a template with an incomplete typo-corrected type. 2019-09-07 20:14:09 +00:00
instantiate-init.cpp [c++20] Implement semantic restrictions for C++20 designated 2019-08-30 22:52:55 +00:00
instantiate-invalid.cpp
instantiate-local-class.cpp Only instantiate members of nested classes in local classes once, rather than once per enclosing class. 2017-01-04 23:45:01 +00:00
instantiate-member-class.cpp PR13403 (+duplicates): implement C++ DR1310 (http://wg21.link/cwg1310). 2017-01-19 21:00:13 +00:00
instantiate-member-expr.cpp
instantiate-member-initializers.cpp
instantiate-member-pointers.cpp
instantiate-member-template.cpp
instantiate-method.cpp Implement C++ DR727, which permits explicit specializations at class scope. 2018-03-16 13:36:56 +00:00
instantiate-non-dependent-types.cpp
instantiate-non-type-template-parameter.cpp
instantiate-objc-1.mm
instantiate-overload-candidates.cpp
instantiate-overloaded-arrow.cpp
instantiate-partial-spec.cpp
instantiate-requires-clause.cpp [Concepts] Add missing CXXThisScope to function template constraint substitution 2020-02-05 01:10:35 +02:00
instantiate-requires-expr.cpp [Concepts] Deprecate -fconcepts-ts, enable Concepts under -std=c++2a 2020-01-24 00:48:59 +02:00
instantiate-scope.cpp
instantiate-self.cpp C++ DR2026: static storage duration variables are not zeroed before 2020-02-06 16:37:22 -08:00
instantiate-sizeof.cpp Add missing triple to instantiate-sizeof.cpp test 2016-03-11 19:17:53 +00:00
instantiate-static-var.cpp Don't warn about runtime behavior problems in variable initializers that we 2017-09-23 18:27:11 +00:00
instantiate-subscript.cpp
instantiate-template-argument.cpp [Concepts] Correctly form initial parameter mapping for parameter packs, support substitution into SubstNonTypeTemplateParmExpr 2020-01-31 15:59:42 +02:00
instantiate-template-template-parm.cpp
instantiate-try-catch.cpp
instantiate-type.cpp
instantiate-typedef.cpp
instantiate-typeof.cpp
instantiate-using-decl.cpp
instantiate-var-template.cpp
instantiation-backtrace.cpp
instantiation-default-1.cpp When producing a name of a partial specialization in a diagnostic, use the 2016-12-24 04:09:05 +00:00
instantiation-default-2.cpp
instantiation-default-3.cpp
instantiation-depth-defarg.cpp
instantiation-depth-default.cpp Update line number after previous patch added an additional unsupported 2019-12-12 14:45:05 -08:00
instantiation-depth-exception-spec.cpp PR12298 et al: don't recursively instantiate a template specialization from 2016-08-31 02:15:21 +00:00
instantiation-depth-subst-2.cpp
instantiation-depth-subst.cpp
instantiation-depth.cpp PR12298 et al: don't recursively instantiate a template specialization from 2016-08-31 02:15:21 +00:00
instantiation-order.cpp
issue150.cpp
lambda-capture-pack.cpp Add regression test for PR41576 (which is already fixed in trunk, 2019-06-25 18:42:53 +00:00
late-parsing-eager-instantiation.cpp [Diagnostics] Try to improve warning message for -Wreturn-type 2019-11-09 17:54:58 +01:00
lookup-dependent-bases.cpp
member-access-ambig.cpp Print nested name specifiers for typedefs and type aliases 2017-03-10 15:04:58 +00:00
member-access-expr.cpp Reapply "Fix crash on switch conditions of non-integer types in templates" 2019-12-03 15:27:19 -08:00
member-function-template.cpp
member-inclass-init-value-dependent.cpp
member-initializers.cpp
member-specialization.cpp Fix crash if an in-class explicit function specialization has explicit 2018-12-04 22:26:32 +00:00
member-template-access-expr.cpp
metafun-apply.cpp Improve diagnostics and error recovery for template name lookup. 2018-05-11 02:43:08 +00:00
missing-class-keyword-crash.cpp
missing-typename.cpp [MS] Fix for Bug 8446, template instantiation without a 'typename' keyword 2019-02-26 02:22:17 +00:00
ms-class-specialization-class-scope.cpp When producing a name of a partial specialization in a diagnostic, use the 2016-12-24 04:09:05 +00:00
ms-class-specialization-duplicate.cpp
ms-delayed-default-template-args.cpp [Concepts] Placeholder constraints and abbreviated templates 2020-01-23 19:39:43 +02:00
ms-function-specialization-class-scope.cpp Implement C++ DR727, which permits explicit specializations at class scope. 2018-03-16 13:36:56 +00:00
ms-if-exists.cpp
ms-lookup-template-base-classes.cpp Improve diagnosis of unknown template name. 2017-05-10 21:32:16 +00:00
ms-sizeof-missing-typename.cpp PR13403 (+duplicates): implement C++ DR1310 (http://wg21.link/cwg1310). 2017-01-19 21:00:13 +00:00
nested-deduction-guides.cpp When instantiating a deduction guide, transform its name. 2017-12-21 19:43:39 +00:00
nested-incomplete-class.cpp
nested-linkage.cpp
nested-name-spec-template.cpp Improve diagnostics and error recovery for template name lookup. 2018-05-11 02:43:08 +00:00
nested-template.cpp Fix a couple of places where we assumed that non-type template parameters are always rvalues. 2018-02-14 02:07:53 +00:00
non-integral-switch-cond.cpp Reapply "Fix crash on switch conditions of non-integer types in templates" 2019-12-03 15:27:19 -08:00
operator-function-id-template.cpp
operator-template.cpp
overload-candidates.cpp Fix test case in pre-C++11 mode; address Aaron Ballman's code review. 2017-07-05 21:12:37 +00:00
overload-uneval.cpp
overloaded-functions.cpp
pack-deduction.cpp Always deduce the lengths of contained parameter packs when deducing a 2020-01-06 17:24:29 -08:00
partial-order.cpp Revert r295277 to fix buildbot. 2017-02-16 04:22:56 +00:00
partial-spec-instantiate.cpp [Sema] Fix assertion when constructor is disabled with partially specialized template. 2018-05-16 18:28:58 +00:00
pragma-ms_struct.cpp
qualified-id.cpp
qualified-names-diag.cpp
rdar9173693.cpp Remove redundant CXXScopeSpec from TemplateIdAnnotation. 2020-01-17 15:47:21 -08:00
recovery-crash.cpp [c++20] Implement P0846R0: allow (ADL-only) calls to template-ids whose 2019-05-09 03:31:27 +00:00
recursive-template-instantiation.cpp
resolve-single-template-id.cpp Fix crash and rejects-valid when a later template parameter or default 2019-06-20 19:49:13 +00:00
self-comparison.cpp
sizeof-pack.cpp [c++20] P0780R2: Support pack-expansion of init-captures. 2019-05-21 20:10:50 +00:00
stack-exhaustion.cpp Disable stack exhaustion test on NetBSD, where either the detection or 2019-09-03 18:00:44 +00:00
stmt-expr.cpp Fix crash when trying to pack-expand a GNU statement expression. 2018-02-03 00:44:57 +00:00
temp-param-subst-linear.cpp When substituting previously-checked template arguments into a template 2018-03-08 01:07:33 +00:00
temp.cpp Fix implementation of [temp.local]p4. 2019-02-15 21:53:07 +00:00
temp_arg.cpp PR0091R3: Implement parsing support for using templates as types. 2017-01-26 20:40:47 +00:00
temp_arg_enum_printing.cpp [AST] Incorrectly qualified unscoped enumeration as template actual parameter. 2017-12-21 21:47:22 +00:00
temp_arg_enum_printing_more.cpp [AST] Incorrectly qualified unscoped enumeration as template actual parameter. 2017-12-21 21:47:22 +00:00
temp_arg_nontype.cpp When diagnosing an ambiguity, only note the candidates that contribute 2019-10-24 14:58:29 -07:00
temp_arg_nontype_cxx1z.cpp PR42108 Consistently diagnose binding a reference template parameter to 2020-01-19 18:16:36 -08:00
temp_arg_nontype_cxx11.cpp PR42513: Enter the proper DeclContext before substituting into an 2019-08-24 02:30:00 +00:00
temp_arg_pack.cpp PR39231: fix null dereference when diagnosing deduction failure due to 2018-10-09 18:49:22 +00:00
temp_arg_template.cpp PR10147: When substituting a template template argument, substitute in the most 2017-08-29 22:14:43 +00:00
temp_arg_template_cxx1z.cpp PR32185: Revert r291512 and add a testcase for PR32185. 2017-04-13 21:37:24 +00:00
temp_arg_type.cpp [c++1z] Support deducing B in noexcept(B). 2017-06-07 21:46:22 +00:00
temp_class_order.cpp
temp_class_spec.cpp
temp_class_spec_blocks.cpp
temp_class_spec_neg.cpp Implement C++ DR727, which permits explicit specializations at class scope. 2018-03-16 13:36:56 +00:00
temp_explicit.cpp [Test] Make Lit tests C++11 compatible #9 2017-02-24 22:22:05 +00:00
temp_explicit_cxx0x.cpp
temp_func_order.cpp
template-class-traits.cpp
template-decl-fail.cpp
template-id-expr.cpp Improve diagnostics and error recovery for template name lookup. 2018-05-11 02:43:08 +00:00
template-id-printing.cpp
typename-specifier-2.cpp
typename-specifier-3.cpp PR12884: Add test (bug is already fixed). 2018-11-28 05:15:46 +00:00
typename-specifier-4.cpp
typename-specifier.cpp Print nested name specifiers for typedefs and type aliases 2017-03-10 15:04:58 +00:00
typo-dependent-name.cpp [NFC] Explicitly add -std=c++14 option to tests that rely on the C++14 default 2019-02-05 12:05:53 +00:00
typo-template-name.cpp When we see a '<' operator, check whether it's a probable typo for a template-id. 2017-05-10 02:30:28 +00:00
typo-variadic.cpp [SemaTemplate] Fix uncorrected typos after pack expansion 2019-07-16 10:30:21 +00:00
undefined-template.cpp Suppress undefined-template warnings when the pattern is declared in a system header. 2018-01-02 19:10:12 +00:00
unresolved-construct.cpp
unused-variables.cpp
using-decl.cpp Always rebuild a DeclRefExpr if its FoundDecl would change. 2019-09-26 22:28:32 +00:00
value-dependent-null-pointer-constant.cpp [Test] Make Lit tests C++11 compatible #9 2017-02-24 22:22:05 +00:00
virtual-member-functions.cpp [Lit Test] Make tests C++11 compatible - Microsoft diagnostics 2017-02-06 19:32:38 +00:00
warn-thread-safety-analysis.cpp Fix some handling of AST nodes with diagnostics. 2018-03-28 04:16:13 +00:00