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src: use struct as arguments to node::Assert

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This just makes the code a bit more obvious (subjectively).

PR-URL: https://github.com/nodejs/node/pull/25869
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This commit is contained in:
Anna Henningsen 2019-02-01 15:38:28 +01:00
parent d0bce9a82d
commit 30545a5b21
No known key found for this signature in database
GPG Key ID: 9C63F3A6CD2AD8F9
2 changed files with 20 additions and 18 deletions
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18
src/node_errors.cc
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@ -166,23 +166,17 @@ void AppendExceptionLine(Environment* env,
ABORT_NO_BACKTRACE();
}
[[noreturn]] void Assert(const char* const (*args)[4]) {
auto filename = (*args)[0];
auto linenum = (*args)[1];
auto message = (*args)[2];
auto function = (*args)[3];
[[noreturn]] void Assert(const AssertionInfo& info) {
char name[1024];
GetHumanReadableProcessName(&name);
fprintf(stderr,
"%s: %s:%s:%s%s Assertion `%s' failed.\n",
"%s: %s:%s%s Assertion `%s' failed.\n",
name,
filename,
linenum,
function,
*function ? ":" : "",
message);
info.file_line,
info.function,
*info.function ? ":" : "",
info.message);
fflush(stderr);
Abort();

20
src/util.h
View File

@ -85,10 +85,15 @@ extern bool v8_initialized;
// whether V8 is initialized.
void LowMemoryNotification();
// The slightly odd function signature for Assert() is to ease
// instruction cache pressure in calls from CHECK.
// The reason that Assert() takes a struct argument instead of individual
// const char*s is to ease instruction cache pressure in calls from CHECK.
struct AssertionInfo {
const char* file_line; // filename:line
const char* message;
const char* function;
};
[[noreturn]] void Assert(const AssertionInfo& info);
[[noreturn]] void Abort();
[[noreturn]] void Assert(const char* const (*args)[4]);
void DumpBacktrace(FILE* fp);
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
@ -120,9 +125,12 @@ void DumpBacktrace(FILE* fp);
#define CHECK(expr) \
do { \
if (UNLIKELY(!(expr))) { \
static const char* const args[] = { __FILE__, STRINGIFY(__LINE__), \
#expr, PRETTY_FUNCTION_NAME }; \
node::Assert(&args); \
/* Make sure that this struct does not end up in inline code, but */ \
/* rather in a read-only data section when modifying this code. */ \
static const node::AssertionInfo args = { \
__FILE__ ":" STRINGIFY(__LINE__), #expr, PRETTY_FUNCTION_NAME \
}; \
node::Assert(args); \
} \
} while (0)