From 09f84102e370b81652569d9c850fbd1cccd2ad61 Mon Sep 17 00:00:00 2001 From: Jan Haller Date: Wed, 16 Nov 2022 00:51:48 +0100 Subject: [PATCH] Extension header: fix typos, documentation and member order --- core/extension/gdnative_interface.h | 70 ++++++++++++++++++----------- core/extension/native_extension.cpp | 4 +- 2 files changed, 46 insertions(+), 28 deletions(-) diff --git a/core/extension/gdnative_interface.h b/core/extension/gdnative_interface.h index a361e400967..50410c48576 100644 --- a/core/extension/gdnative_interface.h +++ b/core/extension/gdnative_interface.h @@ -109,6 +109,7 @@ typedef enum { GDNATIVE_VARIANT_OP_LESS_EQUAL, GDNATIVE_VARIANT_OP_GREATER, GDNATIVE_VARIANT_OP_GREATER_EQUAL, + /* mathematic */ GDNATIVE_VARIANT_OP_ADD, GDNATIVE_VARIANT_OP_SUBTRACT, @@ -118,6 +119,7 @@ typedef enum { GDNATIVE_VARIANT_OP_POSITIVE, GDNATIVE_VARIANT_OP_MODULE, GDNATIVE_VARIANT_OP_POWER, + /* bitwise */ GDNATIVE_VARIANT_OP_SHIFT_LEFT, GDNATIVE_VARIANT_OP_SHIFT_RIGHT, @@ -125,11 +127,13 @@ typedef enum { GDNATIVE_VARIANT_OP_BIT_OR, GDNATIVE_VARIANT_OP_BIT_XOR, GDNATIVE_VARIANT_OP_BIT_NEGATE, + /* logic */ GDNATIVE_VARIANT_OP_AND, GDNATIVE_VARIANT_OP_OR, GDNATIVE_VARIANT_OP_XOR, GDNATIVE_VARIANT_OP_NOT, + /* containment */ GDNATIVE_VARIANT_OP_IN, GDNATIVE_VARIANT_OP_MAX @@ -152,11 +156,11 @@ typedef uint64_t GDObjectInstanceID; typedef enum { GDNATIVE_CALL_OK, GDNATIVE_CALL_ERROR_INVALID_METHOD, - GDNATIVE_CALL_ERROR_INVALID_ARGUMENT, /* expected is variant type */ - GDNATIVE_CALL_ERROR_TOO_MANY_ARGUMENTS, /* expected is number of arguments */ - GDNATIVE_CALL_ERROR_TOO_FEW_ARGUMENTS, /* expected is number of arguments */ + GDNATIVE_CALL_ERROR_INVALID_ARGUMENT, // Expected a different variant type. + GDNATIVE_CALL_ERROR_TOO_MANY_ARGUMENTS, // Expected lower number of arguments. + GDNATIVE_CALL_ERROR_TOO_FEW_ARGUMENTS, // Expected higher number of arguments. GDNATIVE_CALL_ERROR_INSTANCE_IS_NULL, - GDNATIVE_CALL_ERROR_METHOD_NOT_CONST, /* used for const call */ + GDNATIVE_CALL_ERROR_METHOD_NOT_CONST, // Used for const call. } GDNativeCallErrorType; typedef struct { @@ -204,20 +208,24 @@ typedef struct { GDNativeVariantType type; GDNativeStringNamePtr name; GDNativeStringNamePtr class_name; - uint32_t hint; // Bitfield of `PropertyHint` (defined in `extension_api.json`) + uint32_t hint; // Bitfield of `PropertyHint` (defined in `extension_api.json`). GDNativeStringPtr hint_string; - uint32_t usage; // Bitfield of `PropertyUsageFlags` (defined in `extension_api.json`) + uint32_t usage; // Bitfield of `PropertyUsageFlags` (defined in `extension_api.json`). } GDNativePropertyInfo; typedef struct { GDNativeStringNamePtr name; GDNativePropertyInfo return_value; - uint32_t flags; // Bitfield of `GDNativeExtensionClassMethodFlags` + uint32_t flags; // Bitfield of `GDNativeExtensionClassMethodFlags`. int32_t id; - GDNativePropertyInfo *arguments; // array of `argument_count` size + + /* Arguments: `default_arguments` is an array of size `argument_count`. */ uint32_t argument_count; - GDNativeVariantPtr *default_arguments; // array of `default_argument_count` size + GDNativePropertyInfo *arguments; + + /* Default arguments: `default_arguments` is an array of size `default_argument_count`. */ uint32_t default_argument_count; + GDNativeVariantPtr *default_arguments; } GDNativeMethodInfo; typedef const GDNativePropertyInfo *(*GDNativeExtensionClassGetPropertyList)(GDExtensionClassInstancePtr p_instance, uint32_t *r_count); @@ -246,11 +254,11 @@ typedef struct { GDNativeExtensionClassToString to_string_func; GDNativeExtensionClassReference reference_func; GDNativeExtensionClassUnreference unreference_func; - GDNativeExtensionClassCreateInstance create_instance_func; /* this one is mandatory */ - GDNativeExtensionClassFreeInstance free_instance_func; /* this one is mandatory */ - GDNativeExtensionClassGetVirtual get_virtual_func; + GDNativeExtensionClassCreateInstance create_instance_func; // (Default) constructor; mandatory. If the class is not instantiable, consider making it virtual or abstract. + GDNativeExtensionClassFreeInstance free_instance_func; // Destructor; mandatory. + GDNativeExtensionClassGetVirtual get_virtual_func; // Queries a virtual function by name and returns a callback to invoke the requested virtual function. GDNativeExtensionClassGetRID get_rid_func; - void *class_userdata; + void *class_userdata; // Per-class user data, later accessible in instance bindings. } GDNativeExtensionClassCreationInfo; typedef void *GDNativeExtensionClassLibraryPtr; @@ -289,21 +297,28 @@ typedef struct { void *method_userdata; GDNativeExtensionClassMethodCall call_func; GDNativeExtensionClassMethodPtrCall ptrcall_func; - uint32_t method_flags; // Bitfield of `GDNativeExtensionClassMethodFlags` - uint32_t argument_count; + uint32_t method_flags; // Bitfield of `GDNativeExtensionClassMethodFlags`. + + /* If `has_return_value` is false, `return_value_info` and `return_value_metadata` are ignored. */ GDNativeBool has_return_value; - GDNativePropertyInfo *return_value_info; // Ignored if `has_return_value` is false - GDNativeExtensionClassMethodArgumentMetadata return_value_metadata; // Ignored if `has_return_value` is false - /* name and hint information for the argument can be omitted in release builds. Class name should always be present if it applies. */ - GDNativePropertyInfo *aguments_info; // array of `argument_count` size - GDNativeExtensionClassMethodArgumentMetadata *aguments_metadata; // array of `argument_count` size + GDNativePropertyInfo *return_value_info; + GDNativeExtensionClassMethodArgumentMetadata return_value_metadata; + + /* Arguments: `arguments_info` and `arguments_metadata` are array of size `argument_count`. + * Name and hint information for the argument can be omitted in release builds. Class name should always be present if it applies. + */ + uint32_t argument_count; + GDNativePropertyInfo *arguments_info; + GDNativeExtensionClassMethodArgumentMetadata *arguments_metadata; + + /* Default arguments: `default_arguments` is an array of size `default_argument_count`. */ uint32_t default_argument_count; - GDNativeVariantPtr *default_arguments; // array of `default_argument_count` size + GDNativeVariantPtr *default_arguments; } GDNativeExtensionClassMethodInfo; /* SCRIPT INSTANCE EXTENSION */ -typedef void *GDNativeExtensionScriptInstanceDataPtr; // Pointer to custom ScriptInstance native implementation +typedef void *GDNativeExtensionScriptInstanceDataPtr; // Pointer to custom ScriptInstance native implementation. typedef GDNativeBool (*GDNativeExtensionScriptInstanceSet)(GDNativeExtensionScriptInstanceDataPtr p_instance, const GDNativeStringNamePtr p_name, const GDNativeVariantPtr p_value); typedef GDNativeBool (*GDNativeExtensionScriptInstanceGet)(GDNativeExtensionScriptInstanceDataPtr p_instance, const GDNativeStringNamePtr p_name, GDNativeVariantPtr r_ret); @@ -389,6 +404,7 @@ typedef struct { const char *version_string; /* GODOT CORE */ + void *(*mem_alloc)(size_t p_bytes); void *(*mem_realloc)(void *p_ptr, size_t p_bytes); void (*mem_free)(void *p_ptr); @@ -455,7 +471,6 @@ typedef struct { GDNativePtrUtilityFunction (*variant_get_ptr_utility_function)(const GDNativeStringNamePtr p_function, GDNativeInt p_hash); /* extra utilities */ - void (*string_new_with_latin1_chars)(GDNativeStringPtr r_dest, const char *p_contents); void (*string_new_with_utf8_chars)(GDNativeStringPtr r_dest, const char *p_contents); void (*string_new_with_utf16_chars)(GDNativeStringPtr r_dest, const char16_t *p_contents); @@ -466,6 +481,7 @@ typedef struct { void (*string_new_with_utf16_chars_and_len)(GDNativeStringPtr r_dest, const char16_t *p_contents, const GDNativeInt p_size); void (*string_new_with_utf32_chars_and_len)(GDNativeStringPtr r_dest, const char32_t *p_contents, const GDNativeInt p_size); void (*string_new_with_wide_chars_and_len)(GDNativeStringPtr r_dest, const wchar_t *p_contents, const GDNativeInt p_size); + /* Information about the following functions: * - The return value is the resulting encoded string length. * - The length returned is in characters, not in bytes. It also does not include a trailing zero. @@ -537,13 +553,14 @@ typedef struct { GDNativeScriptInstancePtr (*script_instance_create)(const GDNativeExtensionScriptInstanceInfo *p_info, GDNativeExtensionScriptInstanceDataPtr p_instance_data); /* CLASSDB */ + GDNativeObjectPtr (*classdb_construct_object)(const GDNativeStringNamePtr p_classname); /* The passed class must be a built-in godot class, or an already-registered extension class. In both case, object_set_instance should be called to fully initialize the object. */ GDNativeMethodBindPtr (*classdb_get_method_bind)(const GDNativeStringNamePtr p_classname, const GDNativeStringNamePtr p_methodname, GDNativeInt p_hash); void *(*classdb_get_class_tag)(const GDNativeStringNamePtr p_classname); /* CLASSDB EXTENSION */ - // Provided parameters for `classdb_register_extension_*` can be safely freed once the function returns + /* Provided parameters for `classdb_register_extension_*` can be safely freed once the function returns. */ void (*classdb_register_extension_class)(const GDNativeExtensionClassLibraryPtr p_library, const GDNativeStringNamePtr p_class_name, const GDNativeStringNamePtr p_parent_class_name, const GDNativeExtensionClassCreationInfo *p_extension_funcs); void (*classdb_register_extension_class_method)(const GDNativeExtensionClassLibraryPtr p_library, const GDNativeStringNamePtr p_class_name, const GDNativeExtensionClassMethodInfo *p_method_info); void (*classdb_register_extension_class_integer_constant)(const GDNativeExtensionClassLibraryPtr p_library, const GDNativeStringNamePtr p_class_name, const GDNativeStringNamePtr p_enum_name, const GDNativeStringNamePtr p_constant_name, GDNativeInt p_constant_value, GDNativeBool p_is_bitfield); @@ -579,9 +596,10 @@ typedef struct { } GDNativeInitialization; /* Define a C function prototype that implements the function below and expose it to dlopen() (or similar). - * It will be called on initialization. The name must be an unique one specified in the .gdextension config file. + * This is the entry point of the GDExtension library and will be called on initialization. + * It can be used to set up different init levels, which are called during various stages of initialization/shutdown. + * The function name must be a unique one specified in the .gdextension config file. */ - typedef GDNativeBool (*GDNativeInitializationFunction)(const GDNativeInterface *p_interface, const GDNativeExtensionClassLibraryPtr p_library, GDNativeInitialization *r_initialization); #ifdef __cplusplus diff --git a/core/extension/native_extension.cpp b/core/extension/native_extension.cpp index 8bbb72fd828..83a2e80793f 100644 --- a/core/extension/native_extension.cpp +++ b/core/extension/native_extension.cpp @@ -108,8 +108,8 @@ public: } for (uint32_t i = 0; i < p_method_info->argument_count; i++) { - arguments_info.push_back(PropertyInfo(p_method_info->aguments_info[i])); - arguments_metadata.push_back(GodotTypeInfo::Metadata(p_method_info->aguments_metadata[i])); + arguments_info.push_back(PropertyInfo(p_method_info->arguments_info[i])); + arguments_metadata.push_back(GodotTypeInfo::Metadata(p_method_info->arguments_metadata[i])); } set_hint_flags(p_method_info->method_flags);