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// This test verifies that system module variants are mergable despite having
// different warning flags, as most warnings are disabled in system modules.
// This checks for system modules marked as such both via `-isystem` and
// `[system]`.
// RUN: rm -rf %t
// RUN: split-file %s %t
// RUN: sed -e "s|DIR|%/t|g" %t/build/compile-commands.json.in > %t/build/compile-commands.json
// RUN: clang-scan-deps -compilation-database %t/build/compile-commands.json \
// RUN: -j 1 -format experimental-full -optimize-args=system-warnings > %t/deps.db
// RUN: cat %t/deps.db | sed 's:\\\\\?:/:g' | FileCheck %s -DPREFIX=%/t
// CHECK: {
// CHECK-NEXT: "modules": [
// CHECK-NEXT: {
// CHECK-NEXT: "clang-module-deps": [],
// CHECK-NEXT: "clang-modulemap-file":
// CHECK-NEXT: "command-line": [
// CHECK-NOT: "-W
// CHECK: ],
// CHECK-NEXT: "context-hash": "{{.*}}",
// CHECK-NEXT: "file-deps": [
// CHECK: ],
// CHECK-NEXT: "link-libraries": [],
// CHECK-NEXT: "name": "A"
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "clang-module-deps": [],
// CHECK-NEXT: "clang-modulemap-file":
// CHECK-NEXT: "command-line": [
// CHECK-NOT: "-W
// CHECK: ],
// CHECK-NEXT: "context-hash": "{{.*}}",
// CHECK-NEXT: "file-deps": [
// CHECK: ],
// CHECK-NEXT: "link-libraries": [],
// CHECK-NEXT: "name": "B"
// CHECK-NEXT: },
// CHECK-NEXT: {
// CHECK-NEXT: "clang-module-deps": [],
// CHECK-NEXT: "clang-modulemap-file":
// CHECK-NEXT: "command-line": [
// CHECK: "-Wmaybe-unused
// CHECK: ],
// CHECK-NEXT: "context-hash": "{{.*}}",
// CHECK-NEXT: "file-deps": [
// CHECK: ],
// CHECK-NEXT: "link-libraries": [],
// CHECK-NEXT: "name": "C"
// CHECK-NEXT: }
// CHECK-NEXT: ],
// CHECK-NEXT: "translation-units": [
// CHECK: ]
// CHECK: }
// A.m and B.m verify that system modules with different warning flags get
// merged. C.m verifies that -Wsystem-headers disables the optimization.
//--- build/compile-commands.json.in
[
{
"directory": "DIR",
"command": "clang -c DIR/A.m -isystem modules/A -I modules/B -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-module-maps",
"file": "DIR/A.m"
},
{
"directory": "DIR",
"command": "clang -c DIR/B.m -isystem modules/A -I modules/B -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-module-maps -Wmaybe-unused",
"file": "DIR/B.m"
},
{
"directory": "DIR",
"command": "clang -c DIR/C.m -isystem modules/C -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-module-maps -Wmaybe-unused -Wsystem-headers",
"file": "DIR/C.m"
}
]
//--- modules/A/module.modulemap
module A {
umbrella header "A.h"
}
//--- modules/A/A.h
typedef int A_t;
//--- modules/B/module.modulemap
module B [system] {
umbrella header "B.h"
}
//--- modules/B/B.h
typedef int B_t;
//--- modules/C/module.modulemap
module C [system] {
umbrella header "C.h"
}
//--- modules/C/C.h
typedef int C_t;
//--- A.m
#include <A.h>
#include <B.h>
A_t a = 0;
//--- B.m
#include <A.h>
#include <B.h>
A_t b = 0;
//--- C.m
#include <C.h>
C_t c = 0;
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