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llvm-mirror/tools/llvm-c-test/diagnostic.c
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

89 lines
2.5 KiB
C

//===-- diagnostic.cpp - tool for testing libLLVM and llvm-c API ----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the --test-diagnostic-handler command in llvm-c-test.
//
// This command uses the C API to read a module with a custom diagnostic
// handler set to test the diagnostic handler functionality.
//
//===----------------------------------------------------------------------===//
#include "llvm-c-test.h"
#include "llvm-c/BitReader.h"
#include "llvm-c/Core.h"
#include <stdio.h>
static void diagnosticHandler(LLVMDiagnosticInfoRef DI, void *C) {
fprintf(stderr, "Executing diagnostic handler\n");
fprintf(stderr, "Diagnostic severity is of type ");
switch (LLVMGetDiagInfoSeverity(DI)) {
case LLVMDSError:
fprintf(stderr, "error");
break;
case LLVMDSWarning:
fprintf(stderr, "warning");
break;
case LLVMDSRemark:
fprintf(stderr, "remark");
break;
case LLVMDSNote:
fprintf(stderr, "note");
break;
}
fprintf(stderr, "\n");
(*(int *)C) = 1;
}
static int handlerCalled = 0;
int llvm_test_diagnostic_handler(void) {
LLVMContextRef C = LLVMGetGlobalContext();
LLVMContextSetDiagnosticHandler(C, diagnosticHandler, &handlerCalled);
if (LLVMContextGetDiagnosticHandler(C) != diagnosticHandler) {
fprintf(stderr, "LLVMContext{Set,Get}DiagnosticHandler failed\n");
return 1;
}
int *DC = (int *)LLVMContextGetDiagnosticContext(C);
if (DC != &handlerCalled || *DC) {
fprintf(stderr, "LLVMContextGetDiagnosticContext failed\n");
return 1;
}
LLVMMemoryBufferRef MB;
char *msg = NULL;
if (LLVMCreateMemoryBufferWithSTDIN(&MB, &msg)) {
fprintf(stderr, "Error reading file: %s\n", msg);
LLVMDisposeMessage(msg);
return 1;
}
LLVMModuleRef M;
int Ret = LLVMGetBitcodeModule2(MB, &M);
if (Ret) {
// We do not return if the bitcode was invalid, as we want to test whether
// the diagnostic handler was executed.
fprintf(stderr, "Error parsing bitcode: %s\n", msg);
}
LLVMDisposeMemoryBuffer(MB);
if (handlerCalled) {
fprintf(stderr, "Diagnostic handler was called while loading module\n");
} else {
fprintf(stderr, "Diagnostic handler was not called while loading module\n");
}
return 0;
}