DUK_INTERNAL void duk_err_create_and_throw(duk_hthread *thr, duk_errcode_t code, const char *msg, const char *filename, duk_int_t line) { #else DUK_INTERNAL void duk_err_create_and_throw(duk_hthread *thr, duk_errcode_t code) { #endif duk_context *ctx = (duk_context *) thr; duk_bool_t double_error = thr->heap->handling_error; #ifdef DUK_USE_VERBOSE_ERRORS DUK_DD(DUK_DDPRINT("duk_err_create_and_throw(): code=%ld, msg=%s, filename=%s, line=%ld", (long) code, (const char *) msg, (const char *) filename, (long) line)); #else DUK_DD(DUK_DDPRINT("duk_err_create_and_throw(): code=%ld", (long) code)); #endif DUK_ASSERT(thr != NULL); DUK_ASSERT(ctx != NULL); thr->heap->handling_error = 1; if (!double_error) { /* Allow headroom for calls during error handling (see GH-191). * We allow space for 10 additional recursions, with one extra * for, e.g. a print() call at the deepest level. */ DUK_ASSERT(thr->callstack_max == DUK_CALLSTACK_DEFAULT_MAX); thr->callstack_max = DUK_CALLSTACK_DEFAULT_MAX + DUK_CALLSTACK_GROW_STEP + 11; } DUK_ASSERT(thr->callstack_max == DUK_CALLSTACK_DEFAULT_MAX + DUK_CALLSTACK_GROW_STEP + 11); /* just making sure */ /* Sync so that augmentation sees up-to-date activations, NULL * thr->ptr_curr_pc so that it's not used if side effects occur * in augmentation or longjmp handling. */ duk_hthread_sync_and_null_currpc(thr); /* * Create and push an error object onto the top of stack. * If a "double error" occurs, use a fixed error instance * to avoid further trouble. */ /* XXX: if attempt to push beyond allocated valstack, this double fault * handling fails miserably. We should really write the double error * directly to thr->heap->lj.value1 and avoid valstack use entirely. */ if (double_error) { if (thr->builtins[DUK_BIDX_DOUBLE_ERROR]) { DUK_D(DUK_DPRINT("double fault detected -> push built-in fixed 'double error' instance")); duk_push_hobject_bidx(ctx, DUK_BIDX_DOUBLE_ERROR); } else { DUK_D(DUK_DPRINT("double fault detected; there is no built-in fixed 'double error' instance " "-> push the error code as a number")); duk_push_int(ctx, (duk_int_t) code); } } else { /* Error object is augmented at its creation here. */ duk_require_stack(ctx, 1); /* XXX: unnecessary '%s' formatting here, but cannot use * 'msg' as a format string directly. */ #ifdef DUK_USE_VERBOSE_ERRORS duk_push_error_object_raw(ctx, code | DUK_ERRCODE_FLAG_NOBLAME_FILELINE, filename, line, "%s", (const char *) msg); #else duk_push_error_object_raw(ctx, code | DUK_ERRCODE_FLAG_NOBLAME_FILELINE, NULL, 0, NULL); #endif } /* * Augment error (throw time), unless alloc/double error */ if (double_error || code == DUK_ERR_ALLOC_ERROR) { DUK_D(DUK_DPRINT("alloc or double error: skip throw augmenting to avoid further trouble")); } else { #if defined(DUK_USE_AUGMENT_ERROR_THROW) DUK_DDD(DUK_DDDPRINT("THROW ERROR (INTERNAL): %!iT (before throw augment)", (duk_tval *) duk_get_tval(ctx, -1))); duk_err_augment_error_throw(thr); #endif } /* * Finally, longjmp */ duk_err_setup_heap_ljstate(thr, DUK_LJ_TYPE_THROW); thr->callstack_max = DUK_CALLSTACK_DEFAULT_MAX; /* reset callstack limit */ thr->heap->handling_error = 0; DUK_DDD(DUK_DDDPRINT("THROW ERROR (INTERNAL): %!iT, %!iT (after throw augment)", (duk_tval *) &thr->heap->lj.value1, (duk_tval *) &thr->heap->lj.value2)); duk_err_longjmp(thr); DUK_UNREACHABLE(); }
DUK_INTERNAL void duk_err_create_and_throw(duk_hthread *thr, duk_errcode_t code, const char *msg, const char *filename, duk_int_t line) { #else DUK_INTERNAL void duk_err_create_and_throw(duk_hthread *thr, duk_errcode_t code) { #endif duk_context *ctx = (duk_context *) thr; duk_bool_t double_error = thr->heap->handling_error; #ifdef DUK_USE_VERBOSE_ERRORS DUK_DD(DUK_DDPRINT("duk_err_create_and_throw(): code=%ld, msg=%s, filename=%s, line=%ld", (long) code, (const char *) msg, (const char *) filename, (long) line)); #else DUK_DD(DUK_DDPRINT("duk_err_create_and_throw(): code=%ld", (long) code)); #endif DUK_ASSERT(thr != NULL); DUK_ASSERT(ctx != NULL); thr->heap->handling_error = 1; /* * Create and push an error object onto the top of stack. * If a "double error" occurs, use a fixed error instance * to avoid further trouble. */ /* XXX: if attempt to push beyond allocated valstack, this double fault * handling fails miserably. We should really write the double error * directly to thr->heap->lj.value1 and avoid valstack use entirely. */ if (double_error) { if (thr->builtins[DUK_BIDX_DOUBLE_ERROR]) { DUK_D(DUK_DPRINT("double fault detected -> push built-in fixed 'double error' instance")); duk_push_hobject_bidx(ctx, DUK_BIDX_DOUBLE_ERROR); } else { DUK_D(DUK_DPRINT("double fault detected; there is no built-in fixed 'double error' instance " "-> push the error code as a number")); duk_push_int(ctx, (duk_int_t) code); } } else { /* Error object is augmented at its creation here. */ duk_require_stack(ctx, 1); /* XXX: unnecessary '%s' formatting here, but cannot use * 'msg' as a format string directly. */ #ifdef DUK_USE_VERBOSE_ERRORS duk_push_error_object_raw(ctx, code | DUK_ERRCODE_FLAG_NOBLAME_FILELINE, filename, line, "%s", (const char *) msg); #else duk_push_error_object_raw(ctx, code | DUK_ERRCODE_FLAG_NOBLAME_FILELINE, NULL, 0, NULL); #endif } /* * Augment error (throw time), unless alloc/double error */ if (double_error || code == DUK_ERR_ALLOC_ERROR) { DUK_D(DUK_DPRINT("alloc or double error: skip throw augmenting to avoid further trouble")); } else { #if defined(DUK_USE_AUGMENT_ERROR_THROW) DUK_DDD(DUK_DDDPRINT("THROW ERROR (INTERNAL): %!iT (before throw augment)", (duk_tval *) duk_get_tval(ctx, -1))); duk_err_augment_error_throw(thr); #endif } /* * Finally, longjmp */ thr->heap->handling_error = 0; duk_err_setup_heap_ljstate(thr, DUK_LJ_TYPE_THROW); DUK_DDD(DUK_DDDPRINT("THROW ERROR (INTERNAL): %!iT, %!iT (after throw augment)", (duk_tval *) &thr->heap->lj.value1, (duk_tval *) &thr->heap->lj.value2)); duk_err_longjmp(thr); DUK_UNREACHABLE(); }
void duk_err_create_and_throw(duk_hthread *thr, duk_uint32_t code, const char *msg, const char *filename, int line) { #else void duk_err_create_and_throw(duk_hthread *thr, duk_uint32_t code) { #endif duk_context *ctx = (duk_context *) thr; int double_error = thr->heap->handling_error; #ifdef DUK_USE_VERBOSE_ERRORS DUK_DDPRINT("duk_err_create_and_throw(): code=%d, msg=%s, filename=%s, line=%d", code, msg ? msg : "null", filename ? filename : "null", line); #else DUK_DDPRINT("duk_err_create_and_throw(): code=%d", code); #endif DUK_ASSERT(thr != NULL); DUK_ASSERT(ctx != NULL); thr->heap->handling_error = 1; /* * Create and push an error object onto the top of stack. * If a "double error" occurs, use a fixed error instance * to avoid further trouble. */ /* FIXME: if attempt to push beyond allocated valstack, this double fault * handling fails miserably. We should really write the double error * directly to thr->heap->lj.value1 and avoid valstack use entirely. */ if (double_error) { if (thr->builtins[DUK_BIDX_DOUBLE_ERROR]) { DUK_DPRINT("double fault detected -> push built-in fixed 'double error' instance"); duk_push_hobject(ctx, thr->builtins[DUK_BIDX_DOUBLE_ERROR]); } else { DUK_DPRINT("double fault detected; there is no built-in fixed 'double error' instance " "-> push the error code as a number"); duk_push_int(ctx, code); } } else { /* Error object is augmented at its creation here. */ duk_require_stack(ctx, 1); /* FIXME: unnecessary '%s' formatting here */ #ifdef DUK_USE_VERBOSE_ERRORS duk_push_error_object_raw(ctx, code | DUK_ERRCODE_FLAG_NOBLAME_FILELINE, filename, line, "%s", msg); #else duk_push_error_object_raw(ctx, code | DUK_ERRCODE_FLAG_NOBLAME_FILELINE, NULL, 0, NULL); #endif } /* * Call errhandler (unless error is an alloc error) * * Note: must back up the current jmpbuf if it is the shared bytecode * executor one (handled internally by the helper). */ if (double_error || code == DUK_ERR_ALLOC_ERROR) { DUK_DPRINT("alloc or double error: skip calling errhandler to avoid further trouble"); } else { duk__call_errhandler(thr); } /* * Finally, longjmp */ thr->heap->handling_error = 0; duk_err_setup_heap_ljstate(thr, DUK_LJ_TYPE_THROW); DUK_DDDPRINT("THROW ERROR (INTERNAL): %!iT, %!iT", &thr->heap->lj.value1, &thr->heap->lj.value2); duk_err_longjmp(thr); DUK_UNREACHABLE(); }