llvm-capstone/clang/test/Modules/submodule-visibility-cycles.cpp
Richard Smith 0a088ead85 Improve diagnostics for missing import / #include of module.
Fix a few bugs where we would fail to properly determine header to
module correspondence when determining whether to suggest a #include or
import, and suggest a #include more often in language modes where there
is no import syntax. Generally, if the target is in a header with
include guards or #pragma once, we should suggest either #including or
importing that header, and not importing a module that happens to
textually include it.

In passing, improve the notes we attach to the corresponding
diagnostics: calling an entity that we couldn't see "previous" is
confusing.
2020-04-28 18:41:14 -07:00

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// RUN: rm -rf %t
// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fno-modules-error-recovery -fmodules-local-submodule-visibility -fmodules-cache-path=%t -I%S/Inputs/submodule-visibility -verify %s
#include "cycle1.h"
C1 c1;
C2 c2; // expected-error {{missing '#include "cycle2.h"'; 'C2' must be declared}}
// expected-note@cycle2.h:6 {{here}}
#include "cycle2.h"
C2 c3;