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// RUN: %clang_cc1 -std=c++20 -Wunsafe-buffer-usage \
// RUN: -fsafe-buffer-usage-suggestions \
// RUN: -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
void basic(int * x) {
int tmp;
int *p1 = new int[10]; // no fix
// CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:
int *p2 = new int[10];
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:12}:"std::span<int> p2"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-2]]:13-[[@LINE-2]]:13}:"{"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-3]]:24-[[@LINE-3]]:24}:", 10}"
#pragma clang unsafe_buffer_usage begin
tmp = p1[5];
#pragma clang unsafe_buffer_usage end
tmp = p2[5];
}
void withDiagnosticWarning() {
int tmp;
int *p1 = new int[10]; // no fix
// CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:
int *p2 = new int[10];
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:12}:"std::span<int> p2"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-2]]:13-[[@LINE-2]]:13}:"{"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-3]]:24-[[@LINE-3]]:24}:", 10}"
// diagnostics in opt-out region
#pragma clang unsafe_buffer_usage begin
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang diagnostic push
#pragma clang diagnostic warning "-Wunsafe-buffer-usage"
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang diagnostic warning "-Weverything"
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang diagnostic pop
#pragma clang unsafe_buffer_usage end
// opt-out region under diagnostic warning
#pragma clang diagnostic push
#pragma clang diagnostic warning "-Wunsafe-buffer-usage"
#pragma clang unsafe_buffer_usage begin
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang unsafe_buffer_usage end
#pragma clang diagnostic pop
tmp = p2[5];
}
void withDiagnosticIgnore() {
int tmp;
int *p1 = new int[10];
// CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:
int *p2 = new int[10];
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:12}:"std::span<int> p2"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-2]]:13-[[@LINE-2]]:13}:"{"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-3]]:24-[[@LINE-3]]:24}:", 10}"
int *p3 = new int[10];
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:12}:"std::span<int> p3"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-2]]:13-[[@LINE-2]]:13}:"{"
// CHECK-DAG: fix-it:"{{.*}}":{[[@LINE-3]]:24-[[@LINE-3]]:24}:", 10}"
#pragma clang unsafe_buffer_usage begin
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang diagnostic ignored "-Weverything"
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang diagnostic pop
#pragma clang unsafe_buffer_usage end
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
#pragma clang unsafe_buffer_usage begin
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang unsafe_buffer_usage end
#pragma clang diagnostic pop
tmp = p2[5];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
#pragma clang unsafe_buffer_usage begin
tmp = p1[5]; // not to warn
tmp = p2[5]; // not to warn
#pragma clang unsafe_buffer_usage end
tmp = p3[5]; // expected-note{{used in buffer access here}}
#pragma clang diagnostic pop
}
void noteGoesWithVarDeclWarning() {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"
int *p = new int[10]; // not to warn
// CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:
#pragma clang diagnostic pop
p[5]; // not to note since the associated warning is suppressed
}
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