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// RUN: %empty-directory(%t)
// RUN: split-file %s %t
// Verify that symbolic interfaces are emitted.
//
// RUN: %target-swift-frontend %t/test.swift -I %t/Inputs -c -index-system-modules -index-store-path %t/store -enable-experimental-cxx-interop -Rindexing-system-module 2>%t/remarks
// RUN: echo "EOF" >> %t/remarks
// RUN: cat %t/remarks | %FileCheck --check-prefix=REMARK_NEW %s
// RUN: ls %t/store/interfaces | %FileCheck --check-prefix=FILES %s
// RUN: cat %t/store/interfaces/std* | %FileCheck --check-prefix=CHECK %s
// Verify that symbolic interfaces are not emitted when PCM doesn't change.
//
// RUN: %target-swift-frontend %t/test.swift -I %t/Inputs -c -index-system-modules -index-store-path %t/store -enable-experimental-cxx-interop -Rindexing-system-module 2>&1 | %FileCheck --check-prefix=REMARK_NO_UPDATE %s
// RUN: ls %t/store/interfaces | %FileCheck --check-prefix=FILES %s
// REQUIRES: OS=macosx
//--- Inputs/module.modulemap
module CxxModule {
header "headerA.h"
requires cplusplus
}
//--- Inputs/headerA.h
int freeFunction(int x, int y);
//--- test.swift
import CxxStdlib
import CxxModule
// REMARK_NEW: remark: emitting symbolic interface at {{.*}}/interfaces/std-{{.*}}.pcm.symbolicswiftinterface{{$}}
// REMARK_NEW: remark: emitting symbolic interface at {{.*}}/interfaces/CxxModule-{{.*}}.pcm.symbolicswiftinterface{{$}}
// REMARK_NO_UPDATE-NOT: remark: emitting symbolic interface at {{.*}}/interfaces/std-{{.*}}.pcm.symbolicswiftinterface{{$}}
// REMARK_NO_UPDATE-NOT: remark: emitting symbolic interface at {{.*}}/interfaces/CxxModule-{{.*}}.pcm.symbolicswiftinterface{{$}}
// FILES: CxxModule-{{.*}}.pcm.symbolicswiftinterface
// FILES: std-{{.*}}.pcm.symbolicswiftinterface
// CHECK: // Swift interface for system module 'std'
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