/* * Looks for an interface that defines a specific member. * * TODO - check for ambiguity - same member defined on multiple interfaces */ static const char* FindInterfaceForMember(duk_context* ctx, duk_idx_t mbrIdx, const char** member) { const char* iface = NULL; uint8_t found = FALSE; size_t numInterfaces; duk_idx_t listIdx; duk_get_prop_string(ctx, -1, "interfaces"); numInterfaces = duk_get_length(ctx, -1); listIdx = AJS_GetAllJoynProperty(ctx, "interfaceDefinition"); if (duk_is_object(ctx, mbrIdx)) { /* * Expect an object of form { member:"org.foo.interface" } */ duk_enum(ctx, mbrIdx, DUK_ENUM_OWN_PROPERTIES_ONLY); if (!duk_next(ctx, -1, 1)) { duk_error(ctx, DUK_ERR_TYPE_ERROR, "Require object of form { 'member-name':'interface-name' }"); } iface = duk_require_string(ctx, -1); if (!AJ_StringFindFirstOf(iface, ".") == -1) { duk_error(ctx, DUK_ERR_TYPE_ERROR, "Interface name '%s' is not a dotted name", iface); } *member = duk_require_string(ctx, -2); duk_get_prop_string(ctx, listIdx, iface); if (duk_is_undefined(ctx, -1)) { duk_error(ctx, DUK_ERR_REFERENCE_ERROR, "Unknown interface: '%s'", iface); } found = duk_has_prop_string(ctx, -1, *member); duk_pop_n(ctx, 4); } else { size_t i; /* * Expect a string */ *member = duk_require_string(ctx, mbrIdx); for (i = 0; !found && (i < numInterfaces); ++i) { duk_get_prop_index(ctx, -2, i); iface = duk_require_string(ctx, -1); duk_get_prop_string(ctx, listIdx, iface); /* * See if the requested member exists on this interface */ found = duk_has_prop_string(ctx, -1, *member); duk_pop_2(ctx); } } duk_pop_2(ctx); if (!found) { duk_error(ctx, DUK_ERR_REFERENCE_ERROR, "Unknown member: '%s'", *member); } return iface; }
/* * Check is a peer is still live */ static void CheckPeerIsAlive(duk_context* ctx, const char* peer) { AJS_GetGlobalStashObject(ctx, "sessions"); if (!duk_has_prop_string(ctx, -1, peer)) { duk_error(ctx, DUK_ERR_REFERENCE_ERROR, "Peer has disconnected"); } duk_pop(ctx); }
static int HasServiceCallback(duk_context* ctx, const char* iface) { int result; AJS_GetGlobalStashObject(ctx, "serviceCB"); result = duk_has_prop_string(ctx, -1, iface); duk_pop(ctx); return result; }
static int GetStackRaw(duk_context *ctx) { if (!duk_is_object(ctx, -1) || !duk_has_prop_string(ctx, -1, "stack") || !duk_is_error(ctx, -1)) return 1; duk_get_prop_string(ctx, -1, "stack"); duk_remove(ctx, -2); return 1; }
void DuktapeContext::set(JNIEnv *env, jstring name, jobject object, jobjectArray methods) { CHECK_STACK(m_context); duk_push_global_object(m_context); const JString instanceName(env, name); if (duk_has_prop_string(m_context, -1, instanceName)) { duk_pop(m_context); queueIllegalArgumentException(env, "A global object called " + instanceName.str() + " already exists"); return; } const duk_idx_t objIndex = duk_require_normalize_index(m_context, duk_push_object(m_context)); // Hook up a finalizer to decrement the refcount and clean up our JavaMethods. duk_push_c_function(m_context, javaObjectFinalizer, 1); duk_set_finalizer(m_context, objIndex); const jsize numMethods = env->GetArrayLength(methods); for (jsize i = 0; i < numMethods; ++i) { jobject method = env->GetObjectArrayElement(methods, i); const jmethodID getName = env->GetMethodID(env->GetObjectClass(method), "getName", "()Ljava/lang/String;"); const JString methodName(env, static_cast<jstring>(env->CallObjectMethod(method, getName))); std::unique_ptr<JavaMethod> javaMethod; try { javaMethod.reset(new JavaMethod(m_javaValues, env, method)); } catch (const std::invalid_argument& e) { queueIllegalArgumentException(env, "In bound method \"" + instanceName.str() + "." + methodName.str() + "\": " + e.what()); // Pop the object being bound and the duktape global object. duk_pop_2(m_context); return; } // Use VARARGS here to allow us to manually validate that the proper number of arguments are // given in the call. If we specify the actual number of arguments needed, Duktape will try to // be helpful by discarding extra or providing missing arguments. That's not quite what we want. // See http://duktape.org/api.html#duk_push_c_function for details. const duk_idx_t func = duk_push_c_function(m_context, javaMethodHandler, DUK_VARARGS); duk_push_pointer(m_context, javaMethod.release()); duk_put_prop_string(m_context, func, JAVA_METHOD_PROP_NAME); // Add this method to the bound object. duk_put_prop_string(m_context, objIndex, methodName); } // Keep a reference in JavaScript to the object being bound. duk_push_pointer(m_context, env->NewGlobalRef(object)); duk_put_prop_string(m_context, objIndex, JAVA_THIS_PROP_NAME); // Make our bound Java object a property of the Duktape global object (so it's a JS global). duk_put_prop_string(m_context, -2, instanceName); // Pop the Duktape global object off the stack. duk_pop(m_context); }
/* duk_has_prop_string(), DUK_INVALID_INDEX */ static duk_ret_t test_2c(duk_context *ctx) { duk_ret_t rc; prep(ctx); rc = duk_has_prop_string(ctx, DUK_INVALID_INDEX, "foo"); printf("obj.foo -> rc=%d\n", (int) rc); printf("final top: %ld\n", (long) duk_get_top(ctx)); return 0; }
/* duk_has_prop_string(), DUK_INVALID_INDEX */ int test_2c(duk_context *ctx) { int rc; prep(ctx); rc = duk_has_prop_string(ctx, DUK_INVALID_INDEX, "foo"); printf("obj.foo -> rc=%d\n", rc); printf("final top: %d\n", duk_get_top(ctx)); return 0; }
static duk_ret_t test_hasprop(duk_context *ctx, void *udata) { duk_bool_t ret; (void) udata; prep(ctx); /* Property exists, own property */ ret = duk_has_prop_string(ctx, 0, "foo"); printf("hasprop foo: %d\n", (int) ret); /* Property exists, inherited property */ ret = duk_has_prop_string(ctx, 0, "bar"); printf("hasprop bar: %d\n", (int) ret); /* Property doesn't exist, terminate with error */ ret = duk_has_prop_string(ctx, 0, "quux"); printf("hasprop quux: %d\n", (int) ret); return 0; }
/* duk_has_prop_string(), success cases */ int test_2a(duk_context *ctx) { int rc; prep(ctx); rc = duk_has_prop_string(ctx, 0, "foo"); printf("obj.foo -> rc=%d\n", rc); rc = duk_has_prop_string(ctx, 0, "nonexistent"); printf("obj.nonexistent -> rc=%d\n", rc); rc = duk_has_prop_string(ctx, 0, "123"); printf("obj['123'] -> rc=%d\n", rc); rc = duk_has_prop_string(ctx, 1, "nonexistent"); printf("arr.nonexistent -> rc=%d\n", rc); rc = duk_has_prop_string(ctx, 1, "2"); printf("arr['2'] -> rc=%d\n", rc); rc = duk_has_prop_string(ctx, 1, "length"); printf("arr.length -> rc=%d\n", rc); printf("final top: %d\n", duk_get_top(ctx)); return 0; }
/* duk_has_prop_string(), success cases */ static duk_ret_t test_2a(duk_context *ctx, void *udata) { duk_ret_t rc; (void) udata; prep(ctx); rc = duk_has_prop_string(ctx, 0, "foo"); printf("obj.foo -> rc=%d\n", (int) rc); rc = duk_has_prop_string(ctx, 0, "nonexistent"); printf("obj.nonexistent -> rc=%d\n", (int) rc); rc = duk_has_prop_string(ctx, 0, "123"); printf("obj['123'] -> rc=%d\n", (int) rc); rc = duk_has_prop_string(ctx, 1, "nonexistent"); printf("arr.nonexistent -> rc=%d\n", (int) rc); rc = duk_has_prop_string(ctx, 1, "2"); printf("arr['2'] -> rc=%d\n", (int) rc); rc = duk_has_prop_string(ctx, 1, "length"); printf("arr.length -> rc=%d\n", (int) rc); printf("final top: %ld\n", (long) duk_get_top(ctx)); return 0; }
/* duk_has_prop_string(), invalid index */ static duk_ret_t test_2b(duk_context *ctx, void *udata) { duk_ret_t rc; (void) udata; prep(ctx); rc = duk_has_prop_string(ctx, 234, "foo"); printf("obj.foo -> rc=%d\n", (int) rc); printf("final top: %ld\n", (long) duk_get_top(ctx)); return 0; }
void queueJavaExceptionForDuktapeError(JNIEnv *env, duk_context *ctx) { jclass exceptionClass = env->FindClass("com/squareup/duktape/DuktapeException"); // If it's a Duktape error object, try to pull out the full stacktrace. if (duk_is_error(ctx, -1) && duk_has_prop_string(ctx, -1, "stack")) { duk_get_prop_string(ctx, -1, "stack"); const char* stack = duk_safe_to_string(ctx, -1); // Is there an exception thrown from a Java method? if (duk_has_prop_string(ctx, -2, JAVA_EXCEPTION_PROP_NAME)) { duk_get_prop_string(ctx, -2, JAVA_EXCEPTION_PROP_NAME); jthrowable ex = static_cast<jthrowable>(duk_get_pointer(ctx, -1)); // add the Duktape JavaScript stack to this exception. const jmethodID addDuktapeStack = env->GetStaticMethodID(exceptionClass, "addDuktapeStack", "(Ljava/lang/Throwable;Ljava/lang/String;)V"); env->CallStaticVoidMethod(exceptionClass, addDuktapeStack, ex, env->NewStringUTF(stack)); // Rethrow the Java exception. env->Throw(ex); // Pop the Java throwable. duk_pop(ctx); } else { env->ThrowNew(exceptionClass, stack); } // Pop the stack text. duk_pop(ctx); } else { // Not an error or no stacktrace, just convert to a string. env->ThrowNew(exceptionClass, duk_safe_to_string(ctx, -1)); } duk_pop(ctx); }
static int get_stack_raw(duk_context *ctx) { if (!duk_is_object(ctx, -1)) { return 1; } if (!duk_has_prop_string(ctx, -1, "stack")) { return 1; } /* XXX: should check here that object is an Error instance too, * i.e. 'stack' is special. */ duk_get_prop_string(ctx, -1, "stack"); /* caller coerces */ duk_remove(ctx, -2); return 1; }
static int get_stack_raw(duk_context *ctx) { if (!duk_is_object(ctx, -1)) { return 1; } if (!duk_has_prop_string(ctx, -1, "stack")) { return 1; } if (!duk_is_error(ctx, -1)) { /* Not an Error instance, don't read "stack". */ return 1; } duk_get_prop_string(ctx, -1, "stack"); /* caller coerces */ duk_remove(ctx, -2); return 1; }
static void print_error(duk_context *ctx, FILE *f) { if (duk_is_object(ctx, -1) && duk_has_prop_string(ctx, -1, "stack")) { /* FIXME: print error objects specially */ /* FIXME: pcall the string coercion */ duk_get_prop_string (ctx, -1, "stack"); if (duk_is_string (ctx, -1)) { fprintf (f, "%s\n", duk_get_string(ctx, -1)); fflush (f); duk_pop_2 (ctx); return; } else { duk_pop (ctx); } } duk_to_string(ctx, -1); fprintf (f, "%s\n", duk_get_string(ctx, -1)); fflush (f); duk_pop(ctx); }
static duk_ret_t test_func(duk_context *ctx, void *udata) { (void) udata; if (ctx) { printf("dummy - return here\n"); fflush(stdout); return 0; } /* Up-to-date for Duktape 1.3.0, alphabetical order: * $ cd website/api; ls *.yaml */ (void) duk_alloc_raw(ctx, 0); (void) duk_alloc(ctx, 0); (void) duk_base64_decode(ctx, 0); (void) duk_base64_encode(ctx, 0); (void) duk_buffer_to_string(ctx, 0); (void) duk_call_method(ctx, 0); (void) duk_call_prop(ctx, 0, 0); (void) duk_call(ctx, 0); (void) duk_char_code_at(ctx, 0, 0); (void) duk_check_stack_top(ctx, 0); (void) duk_check_stack(ctx, 0); (void) duk_check_type_mask(ctx, 0, 0); (void) duk_check_type(ctx, 0, 0); (void) duk_compact(ctx, 0); (void) duk_compile_lstring_filename(ctx, 0, "dummy", 0); (void) duk_compile_lstring(ctx, 0, "dummy", 0); (void) duk_compile_string_filename(ctx, 0, "dummy"); (void) duk_compile_string(ctx, 0, "dummy"); (void) duk_compile(ctx, 0); (void) duk_concat(ctx, 0); (void) duk_config_buffer(ctx, 0, NULL, 0); (void) duk_copy(ctx, 0, 0); (void) duk_create_heap_default(); (void) duk_create_heap(NULL, NULL, NULL, NULL, NULL); (void) duk_debugger_attach(ctx, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL); (void) duk_debugger_cooperate(ctx); (void) duk_debugger_detach(ctx); (void) duk_debugger_notify(ctx, 0); (void) duk_debugger_pause(ctx); (void) duk_decode_string(ctx, 0, NULL, NULL); (void) duk_def_prop(ctx, 0, 0); (void) duk_del_prop_index(ctx, 0, 0); (void) duk_del_prop_string(ctx, 0, "dummy"); (void) duk_del_prop(ctx, 0); (void) duk_destroy_heap(ctx); (void) duk_dump_function(ctx); (void) duk_dup_top(ctx); (void) duk_dup(ctx, 0); (void) duk_enum(ctx, 0, 0); (void) duk_equals(ctx, 0, 0); duk_error_va(ctx, 0, NULL, NULL); duk_error(ctx, 0, "dummy"); /* (void) cast won't work without variadic macros */ (void) duk_eval_lstring_noresult(ctx, "dummy", 0); (void) duk_eval_lstring(ctx, "dummy", 0); (void) duk_eval_noresult(ctx); (void) duk_eval_string_noresult(ctx, "dummy"); (void) duk_eval_string(ctx, "dummy"); (void) duk_eval(ctx); (void) duk_fatal(ctx, "dummy"); (void) duk_free_raw(ctx, NULL); (void) duk_free(ctx, NULL); (void) duk_gc(ctx, 0); (void) duk_get_boolean(ctx, 0); (void) duk_get_buffer_data(ctx, 0, NULL); (void) duk_get_buffer(ctx, 0, NULL); (void) duk_get_c_function(ctx, 0); (void) duk_get_context(ctx, 0); (void) duk_get_current_magic(ctx); (void) duk_get_error_code(ctx, 0); (void) duk_get_finalizer(ctx, 0); (void) duk_get_global_string(ctx, 0); (void) duk_get_heapptr(ctx, 0); (void) duk_get_int(ctx, 0); (void) duk_get_length(ctx, 0); (void) duk_get_lstring(ctx, 0, NULL); (void) duk_get_magic(ctx, 0); (void) duk_get_memory_functions(ctx, NULL); (void) duk_get_number(ctx, 0); (void) duk_get_pointer(ctx, 0); (void) duk_get_prop_index(ctx, 0, 0); (void) duk_get_prop_string(ctx, 0, "dummy"); (void) duk_get_prop(ctx, 0); (void) duk_get_prototype(ctx, 0); (void) duk_get_string(ctx, 0); (void) duk_get_top_index(ctx); (void) duk_get_top(ctx); (void) duk_get_type_mask(ctx, 0); (void) duk_get_type(ctx, 0); (void) duk_get_uint(ctx, 0); (void) duk_has_prop_index(ctx, 0, 0); (void) duk_has_prop_string(ctx, 0, "dummy"); (void) duk_has_prop(ctx, 0); (void) duk_hex_decode(ctx, 0); (void) duk_hex_encode(ctx, 0); (void) duk_insert(ctx, 0); (void) duk_instanceof(ctx, 0, 0); (void) duk_is_array(ctx, 0); (void) duk_is_boolean(ctx, 0); (void) duk_is_bound_function(ctx, 0); (void) duk_is_buffer(ctx, 0); (void) duk_is_callable(ctx, 0); (void) duk_is_c_function(ctx, 0); (void) duk_is_constructor_call(ctx); (void) duk_is_dynamic_buffer(ctx, 0); (void) duk_is_ecmascript_function(ctx, 0); (void) duk_is_error(ctx, 0); (void) duk_is_eval_error(ctx, 0); (void) duk_is_fixed_buffer(ctx, 0); (void) duk_is_function(ctx, 0); (void) duk_is_lightfunc(ctx, 0); (void) duk_is_nan(ctx, 0); (void) duk_is_null_or_undefined(ctx, 0); (void) duk_is_null(ctx, 0); (void) duk_is_number(ctx, 0); (void) duk_is_object_coercible(ctx, 0); (void) duk_is_object(ctx, 0); (void) duk_is_pointer(ctx, 0); (void) duk_is_primitive(ctx, 0); (void) duk_is_range_error(ctx, 0); (void) duk_is_reference_error(ctx, 0); (void) duk_is_strict_call(ctx); (void) duk_is_string(ctx, 0); (void) duk_is_syntax_error(ctx, 0); (void) duk_is_thread(ctx, 0); (void) duk_is_type_error(ctx, 0); (void) duk_is_undefined(ctx, 0); (void) duk_is_uri_error(ctx, 0); (void) duk_is_valid_index(ctx, 0); (void) duk_join(ctx, 0); (void) duk_json_decode(ctx, 0); (void) duk_json_encode(ctx, 0); (void) duk_load_function(ctx); (void) duk_map_string(ctx, 0, NULL, NULL); (void) duk_new(ctx, 0); (void) duk_next(ctx, 0, 0); (void) duk_normalize_index(ctx, 0); (void) duk_pcall_method(ctx, 0); (void) duk_pcall_prop(ctx, 0, 0); (void) duk_pcall(ctx, 0); (void) duk_pcompile_lstring_filename(ctx, 0, "dummy", 0); (void) duk_pcompile_lstring(ctx, 0, "dummy", 0); (void) duk_pcompile_string_filename(ctx, 0, "dummy"); (void) duk_pcompile_string(ctx, 0, "dummy"); (void) duk_pcompile(ctx, 0); (void) duk_peval_lstring_noresult(ctx, "dummy", 0); (void) duk_peval_lstring(ctx, "dummy", 0); (void) duk_peval_noresult(ctx); (void) duk_peval_string_noresult(ctx, "dummy"); (void) duk_peval_string(ctx, "dummy"); (void) duk_peval(ctx); (void) duk_pnew(ctx, 0); (void) duk_pop_2(ctx); (void) duk_pop_3(ctx); (void) duk_pop_n(ctx, 0); (void) duk_pop(ctx); (void) duk_push_array(ctx); (void) duk_push_boolean(ctx, 0); (void) duk_push_buffer_object(ctx, 0, 0, 0, 0); (void) duk_push_buffer(ctx, 0, 0); (void) duk_push_c_function(ctx, NULL, 0); (void) duk_push_c_lightfunc(ctx, NULL, 0, 0, 0); (void) duk_push_context_dump(ctx); (void) duk_push_current_function(ctx); (void) duk_push_current_thread(ctx); (void) duk_push_dynamic_buffer(ctx, 0); (void) duk_push_error_object_va(ctx, 0, NULL, NULL); (void) duk_push_error_object(ctx, 0, "dummy"); (void) duk_push_external_buffer(ctx); (void) duk_push_false(ctx); (void) duk_push_fixed_buffer(ctx, 0); (void) duk_push_global_object(ctx); (void) duk_push_global_stash(ctx); (void) duk_push_heap_stash(ctx); (void) duk_push_heapptr(ctx, NULL); (void) duk_push_int(ctx, 0); (void) duk_push_lstring(ctx, "dummy", 0); (void) duk_push_nan(ctx); (void) duk_push_null(ctx); (void) duk_push_number(ctx, 0.0); (void) duk_push_object(ctx); (void) duk_push_pointer(ctx, NULL); (void) duk_push_sprintf(ctx, "dummy"); (void) duk_push_string(ctx, "dummy"); (void) duk_push_this(ctx); (void) duk_push_thread_new_globalenv(ctx); (void) duk_push_thread_stash(ctx, NULL); (void) duk_push_thread(ctx); (void) duk_push_true(ctx); (void) duk_push_uint(ctx, 0); (void) duk_push_undefined(ctx); (void) duk_push_vsprintf(ctx, "dummy", NULL); (void) duk_put_function_list(ctx, 0, NULL); (void) duk_put_global_string(ctx, NULL); (void) duk_put_number_list(ctx, 0, NULL); (void) duk_put_prop_index(ctx, 0, 0); (void) duk_put_prop_string(ctx, 0, "dummy"); (void) duk_put_prop(ctx, 0); (void) duk_realloc_raw(ctx, NULL, 0); (void) duk_realloc(ctx, NULL, 0); (void) duk_remove(ctx, 0); (void) duk_replace(ctx, 0); (void) duk_require_boolean(ctx, 0); (void) duk_require_buffer_data(ctx, 0, NULL); (void) duk_require_buffer(ctx, 0, NULL); (void) duk_require_c_function(ctx, 0); (void) duk_require_callable(ctx, 0); (void) duk_require_context(ctx, 0); (void) duk_require_function(ctx, 0); (void) duk_require_heapptr(ctx, 0); (void) duk_require_int(ctx, 0); (void) duk_require_lstring(ctx, 0, NULL); (void) duk_require_normalize_index(ctx, 0); (void) duk_require_null(ctx, 0); (void) duk_require_number(ctx, 0); (void) duk_require_object_coercible(ctx, 0); (void) duk_require_pointer(ctx, 0); (void) duk_require_stack_top(ctx, 0); (void) duk_require_stack(ctx, 0); (void) duk_require_string(ctx, 0); (void) duk_require_top_index(ctx); (void) duk_require_type_mask(ctx, 0, 0); (void) duk_require_uint(ctx, 0); (void) duk_require_undefined(ctx, 0); (void) duk_require_valid_index(ctx, 0); (void) duk_resize_buffer(ctx, 0, 0); (void) duk_safe_call(ctx, NULL, NULL, 0, 0); (void) duk_safe_to_lstring(ctx, 0, NULL); (void) duk_safe_to_string(ctx, 0); (void) duk_set_finalizer(ctx, 0); (void) duk_set_global_object(ctx); (void) duk_set_magic(ctx, 0, 0); (void) duk_set_prototype(ctx, 0); (void) duk_set_top(ctx, 0); (void) duk_steal_buffer(ctx, 0, NULL); (void) duk_strict_equals(ctx, 0, 0); (void) duk_substring(ctx, 0, 0, 0); (void) duk_swap_top(ctx, 0); (void) duk_swap(ctx, 0, 0); (void) duk_throw(ctx); (void) duk_to_boolean(ctx, 0); (void) duk_to_buffer(ctx, 0, NULL); (void) duk_to_defaultvalue(ctx, 0, 0); (void) duk_to_dynamic_buffer(ctx, 0, NULL); (void) duk_to_fixed_buffer(ctx, 0, NULL); (void) duk_to_int32(ctx, 0); (void) duk_to_int(ctx, 0); (void) duk_to_lstring(ctx, 0, NULL); (void) duk_to_null(ctx, 0); (void) duk_to_number(ctx, 0); (void) duk_to_object(ctx, 0); (void) duk_to_pointer(ctx, 0); (void) duk_to_primitive(ctx, 0, 0); (void) duk_to_string(ctx, 0); (void) duk_to_uint16(ctx, 0); (void) duk_to_uint32(ctx, 0); (void) duk_to_uint(ctx, 0); (void) duk_to_undefined(ctx, 0); (void) duk_trim(ctx, 0); (void) duk_xcopy_top(ctx, NULL, 0); (void) duk_xmove_top(ctx, NULL, 0); printf("never here\n"); fflush(stdout); return 0; }
JavaScriptObject::JavaScriptObject(JavaTypeMap& typeMap, JNIEnv* env, duk_context* context, jstring name, jobjectArray methods) : m_name(JString(env, name).str()) , m_context(context) , m_instance(nullptr) , m_nextFinalizer(nullptr) { CHECK_STACK(m_context); duk_push_global_object(m_context); if (!duk_get_prop_string(m_context, -1, m_name.c_str())) { duk_pop_2(m_context); throw std::invalid_argument("A global JavaScript object called " + m_name + " was not found"); } m_instance = duk_get_heapptr(m_context, -1); if (m_instance == nullptr) { duk_pop_2(m_context); throw std::invalid_argument("JavaScript global called " + m_name + " is not an object"); } // Make sure that the object has all of the methods we want. jmethodID getName = nullptr; const jsize numArgs = env->GetArrayLength(methods); for (jsize i = 0; i < numArgs; ++i) { auto method = env->GetObjectArrayElement(methods, i); if (getName == nullptr) { jclass methodClass = env->GetObjectClass(method); getName = env->GetMethodID(methodClass, "getName", "()Ljava/lang/String;"); } // Sanity check that as of right now, the object we're proxying has a function with this name. const JString methodName(env, static_cast<jstring>(env->CallObjectMethod(method, getName))); if (!duk_get_prop_string(m_context, -1, methodName)) { duk_pop_3(m_context); throw std::runtime_error("JavaScript global " + m_name + " has no method called " + methodName.str()); } else if (!duk_is_callable(m_context, -1)) { duk_pop_3(m_context); throw std::runtime_error("JavaScript property " + m_name + "." + methodName.str() + " not callable"); } try { // Build a call wrapper that handles marshalling the arguments and return value. m_methods.emplace(std::make_pair(env->FromReflectedMethod(method), buildMethodBody(typeMap, env, method, methodName.str()))); } catch (const std::invalid_argument& e) { duk_pop_3(m_context); throw std::invalid_argument("In proxied method \"" + m_name + "." + methodName.str() + "\": " + e.what()); } // Pop the method property. duk_pop(m_context); } // Keep track of any previously registered finalizer. duk_get_finalizer(m_context, -1); m_nextFinalizer = duk_is_c_function(m_context, -1) ? duk_get_c_function(m_context, -1) : nullptr; duk_pop(m_context); duk_push_c_function(m_context, JavaScriptObject::finalizer, 1); duk_set_finalizer(m_context, -2); // Add 'this' to the list of pointers attached to the proxied instance. // TODO: don't use an array here, just use a separate hidden property for each proxy. if (!duk_has_prop_string(m_context, -1, WRAPPER_THIS_PROP_NAME)) { duk_push_array(m_context); } else { duk_get_prop_string(m_context, -1, WRAPPER_THIS_PROP_NAME); } const duk_size_t length = duk_get_length(m_context, -1); duk_push_pointer(m_context, this); duk_put_prop_index(m_context, -2, static_cast<duk_uarridx_t>(length)); // Add the array (back) to the instance. duk_put_prop_string(m_context, -2, WRAPPER_THIS_PROP_NAME); // Pop the global and our instance. duk_pop_2(m_context); }
//duk_bool_t duk_has_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key); duk_bool_t aperl_duk_has_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key) { duk_bool_t ret = duk_has_prop_string(ctx, obj_index, key); return ret; }
bool Context::hasProp(index_t i, const char* propName) { return (duk_has_prop_string(m_handle, i, propName) ? true: false); }