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nodejs/test/addons-napi/common.h
Michael Dawson ac41db4af0 n-api: add code parameter to error helpers
In support of the effort to add error codes to all errors
generated by Node.js, add an optional code parameter to the
helper functions used to throw/create errors in N-API.

PR-URL: https://github.com/nodejs/node/pull/13988
Fixes: https://github.com/nodejs/node/issues/13933
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2017-07-13 15:05:19 -04:00

61 lines
3.3 KiB
C

// Empty value so that macros here are able to return NULL or void
#define NAPI_RETVAL_NOTHING // Intentionally blank #define
#define GET_AND_THROW_LAST_ERROR(env) \
do { \
const napi_extended_error_info *error_info; \
napi_get_last_error_info((env), &error_info); \
bool is_pending; \
napi_is_exception_pending((env), &is_pending); \
/* If an exception is already pending, don't rethrow it */ \
if (!is_pending) { \
const char* error_message = error_info->error_message != NULL ? \
error_info->error_message : \
"empty error message"; \
napi_throw_error((env), NULL, error_message); \
} \
} while (0)
#define NAPI_ASSERT_BASE(env, assertion, message, ret_val) \
do { \
if (!(assertion)) { \
napi_throw_error( \
(env), \
NULL, \
"assertion (" #assertion ") failed: " message); \
return ret_val; \
} \
} while (0)
// Returns NULL on failed assertion.
// This is meant to be used inside napi_callback methods.
#define NAPI_ASSERT(env, assertion, message) \
NAPI_ASSERT_BASE(env, assertion, message, NULL)
// Returns empty on failed assertion.
// This is meant to be used inside functions with void return type.
#define NAPI_ASSERT_RETURN_VOID(env, assertion, message) \
NAPI_ASSERT_BASE(env, assertion, message, NAPI_RETVAL_NOTHING)
#define NAPI_CALL_BASE(env, the_call, ret_val) \
do { \
if ((the_call) != napi_ok) { \
GET_AND_THROW_LAST_ERROR((env)); \
return ret_val; \
} \
} while (0)
// Returns NULL if the_call doesn't return napi_ok.
#define NAPI_CALL(env, the_call) \
NAPI_CALL_BASE(env, the_call, NULL)
// Returns empty if the_call doesn't return napi_ok.
#define NAPI_CALL_RETURN_VOID(env, the_call) \
NAPI_CALL_BASE(env, the_call, NAPI_RETVAL_NOTHING)
#define DECLARE_NAPI_PROPERTY(name, func) \
{ (name), 0, (func), 0, 0, 0, napi_default, 0 }
#define DECLARE_NAPI_GETTER(name, func) \
{ (name), 0, 0, (func), 0, 0, napi_default, 0 }