--- parser3/src/classes/reflection.C 2012/05/27 22:10:09 1.26 +++ parser3/src/classes/reflection.C 2016/07/20 16:36:48 1.47 @@ -1,7 +1,7 @@ /** @file Parser: @b reflection parser class. - Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com) + Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) */ @@ -9,7 +9,7 @@ #include "pa_request.h" #include "pa_vbool.h" -volatile const char * IDENT_REFLECTION_C="$Id: reflection.C,v 1.26 2012/05/27 22:10:09 misha Exp $"; +volatile const char * IDENT_REFLECTION_C="$Id: reflection.C,v 1.47 2016/07/20 16:36:48 moko Exp $"; static const String class_type_methoded("methoded"); @@ -19,11 +19,12 @@ static const String method_type_parser(" static const String method_call_type("call_type"); static const String method_inherited("inherited"); static const String method_overridden("overridden"); -static const String method_call_type_static("static"); -static const String method_call_type_dynamic("dynamic"); static const String method_min_params("min_params"); static const String method_max_params("max_params"); +static const String method_extra_param("extra_param"); + +static const String def_class("class"); // class @@ -34,7 +35,7 @@ public: // global variable -DECLARE_CLASS_VAR(reflection, new MReflection, 0); +DECLARE_CLASS_VAR(reflection, new MReflection); // methods @@ -55,7 +56,7 @@ static void _create(Request& r, MethodPa throw Exception(PARSER_RUNTIME, &constructor_name, "constructor must be declared in class '%s'", - class_value->get_class()->name_cstr()); + class_value->type()); Junction* junction=constructor_value->get_junction(); const Method* method=junction->method; @@ -67,15 +68,13 @@ static void _create(Request& r, MethodPa if(method->call_type==Method::CT_STATIC) throw Exception(PARSER_RUNTIME, &constructor_name, - "native method of class '%s' (%s) is not allowed to be called dynamically", - class_value->get_class()->name_cstr(), + "native method of class '%s' is not allowed to be called dynamically", class_value->type()); if(nparamsmin_numbered_params_count) throw Exception(PARSER_RUNTIME, &constructor_name, - "native method of class '%s' (%s) accepts minimum %d parameter(s) (%d passed)", - class_value->get_class()->name_cstr(), + "native method of class '%s' accepts minimum %d parameter(s) (%d passed)", class_value->type(), method->min_numbered_params_count, nparams); @@ -88,8 +87,7 @@ static void _create(Request& r, MethodPa if(nparams>max_params_count) throw Exception(PARSER_RUNTIME, &constructor_name, - "method of class '%s' (%s) accepts maximum %d parameter(s) (%d passed)", - class_value->get_class()->name_cstr(), + "method of class '%s' accepts maximum %d parameter(s) (%d passed)", class_value->type(), max_params_count, nparams); @@ -111,22 +109,11 @@ static void _create(Request& r, MethodPa } -static void store_vlass_info( - HashStringValue::key_type key, - HashStringValue::value_type value, - HashStringValue* result -){ - Value* v; - if(value->get_class()) - v=new VString(class_type_methoded); - else - v=VVoid::get(); - result->put(key, v); -} - static void _classes(Request& r, MethodParams&) { VHash& result=*new VHash; - r.classes().for_each(store_vlass_info, result.get_hash()); + for(HashString::Iterator i(r.classes()); i; i.next()){ + result.hash().put(i.key(), i.value()->get_methods().count()>0 ? new VString(class_type_methoded) : VVoid::get() ); + } r.write_no_lang(result); } @@ -141,7 +128,7 @@ static Value* get_class(Value* value){ static const String* get_class_name(Value* value){ if(VStateless_class* lclass=value->get_class()) - return &lclass->name(); + return new String(lclass->type()); else // classes with fields only, like env & console return new String(value->type()); @@ -157,6 +144,13 @@ static void _class_name(Request& r, Meth r.write_no_lang(*get_class_name(¶ms[0])); } +static void _class_by_name(Request& r, MethodParams& params) { + const String& class_name=params.as_string(0, "class_name must be string"); + Value* class_value=r.get_class(class_name); + if(!class_value) + throw Exception(PARSER_RUNTIME, &class_name, "class is undefined"); + r.write_no_lang(*class_value); +} static void _base(Request& r, MethodParams& params) { if(VStateless_class* lclass=params[0].get_class()) @@ -184,6 +178,17 @@ static void store_method_info( result->put(key, new VString(method->native_code?method_type_native:method_type_parser)); } +static void _def(Request& r, MethodParams& params) { + const String& type=params.as_string(0, "type must be string"); + if(type == def_class) { + const String& name=params.as_string(1, "name must be string"); + // can't use get_class because it will call @autouse[] if the class wasn't loaded + r.write_no_lang(VBool::get(r.classes().get(name)!=0)); + } else { + throw Exception(PARSER_RUNTIME, &type, "is invalid type, must be '%s'", def_class.cstr()); + } +} + static void _methods(Request& r, MethodParams& params) { const String& class_name=params.as_string(0, "class_name must be string"); Value* class_value=r.get_class(class_name); @@ -193,7 +198,7 @@ static void _methods(Request& r, MethodP "class is undefined"); VHash& result=*new VHash; - if(VStateless_class* lclass=class_value->get_class()){ + if(VStateless_class* lclass=class_value->get_class()) { HashStringMethod methods=lclass->get_methods(); methods.for_each(store_method_info, result.get_hash()); } else { @@ -202,35 +207,59 @@ static void _methods(Request& r, MethodP r.write_no_lang(result); } +static void _method(Request& r, MethodParams& params) { + Value& o=params.as_no_junction(0, "first param must be object or class, not junction"); + const String& name=params.as_string(1, "method name must be string"); + + if(VStateless_class* lclass=o.get_class()) { + if(Method* method=lclass->get_method(name)) + r.write_no_lang(*method->get_vjunction(o)); + } else { + // class which does not have methods (env, console, etc) + } +} + static void _fields(Request& r, MethodParams& params) { - if(HashStringValue* fields=params[0].get_fields()){ - VHash& result=*new VHash(*fields); - r.write_no_lang(result); - } else + Value& o=params.as_no_junction(0, "param must be object or class, not junction"); + + if(HashStringValue* fields=o.get_fields()) + r.write_no_lang(*new VHash(*fields)); + else r.write_no_lang(*new VHash()); } +static void _fields_reference(Request& r, MethodParams& params) { + Value& o=params.as_no_junction(0, "param must be object or hash, not junction"); + + if(HashStringValue* fields=o.get_fields_reference()) + r.write_no_lang(*new VHashReference(*fields)); + else + throw Exception(PARSER_RUNTIME, 0, "param must be object or hash"); +} + +static void _field(Request& r, MethodParams& params) { + Value& o=params.as_no_junction(0, "first param must be object or class, not junction"); + const String& name=params.as_string(1, "field name must be string"); + + if(HashStringValue* fields=o.get_fields()) + if(Value* value=fields->get(name)) + r.write_no_lang(*value); +} + static void _method_info(Request& r, MethodParams& params) { const String& class_name=params.as_string(0, "class_name must be string"); Value* class_value=r.get_class(class_name); if(!class_value) - throw Exception(PARSER_RUNTIME, - &class_name, - "class is undefined"); + throw Exception(PARSER_RUNTIME, &class_name, "class is undefined"); VStateless_class* lclass=class_value->get_class(); if(!lclass) - throw Exception(PARSER_RUNTIME, - &class_name, - "class does not have methods"); + throw Exception(PARSER_RUNTIME, &class_name, "class does not have methods"); const String& method_name=params.as_string(1, "method_name must be string"); Method* method=lclass->get_method(method_name); if(!method) - throw Exception(PARSER_RUNTIME, - &method_name, - "method not found in class %s", - class_name.cstr()); + throw Exception(PARSER_RUNTIME, &method_name, "method not found in class %s", class_name.cstr()); VHash& result=*new VHash; HashStringValue* hash=result.get_hash(); @@ -241,32 +270,41 @@ static void _method_info(Request& r, Met c=c->base()->get_class(); while(c->base() && base_method==c->base()->get_method(method_name)) c=c->base()->get_class(); - hash->put((base_method==method) ? method_inherited : method_overridden, new VString(c->name())); + hash->put((base_method==method) ? method_inherited : method_overridden, new VString(*new String(c->type()))); + } + + Value* call_type=0; + switch(method->call_type){ + case Method::CT_DYNAMIC: + call_type=new VString(Symbols::DYNAMIC_SYMBOL); + break; + case Method::CT_STATIC: + call_type=new VString(Symbols::STATIC_SYMBOL); + break; + case Method::CT_ANY: + break; } + if(call_type) + hash->put(method_call_type, call_type); if(method->native_code){ // native code hash->put(method_min_params, new VInt(method->min_numbered_params_count)); hash->put(method_max_params, new VInt(method->max_numbered_params_count)); - Value* call_type=0; - switch(method->call_type){ - case Method::CT_DYNAMIC: - call_type=new VString(method_call_type_dynamic); - break; - case Method::CT_STATIC: - call_type=new VString(method_call_type_static); - break; - } - if(call_type) - hash->put(method_call_type, call_type); } else { // parser code const String* filespec = r.get_method_filename(method); if( filespec ) hash->put("file", new VString(*filespec)); + + hash->put(method_max_params, new VInt(method->params_names ? method->params_names->count() : 0)); + if(method->params_names) for(size_t i=0; iparams_names->count(); i++) hash->put(String::Body::Format(i), new VString(*method->params_names->get(i))); + + if(method->extra_params) + hash->put(method_extra_param, new VString(*method->extra_params)); } r.write_no_lang(result); @@ -281,10 +319,27 @@ static void _dynamical(Request& r, Metho } } +static void _is(Request& r, MethodParams& params) { + const String& name=params.as_string(0, "element name must be string"); + const String& type=params.as_string(1, "class name must be string"); + Value *context=params.count()==3 ? &(params.as_no_junction(2, "context must not be code")) : r.get_method_frame()->caller(); + Value *value=context ? context->get_element(name) : 0; + + if(value) { + if(type == "code" || type == "method") { + Junction *junction=value->get_junction(); + r.write_no_lang(VBool::get(junction && ((junction->code==0) ^ (type == "code"))) ); + } else { + r.write_no_lang(VBool::get( value->is(type.cstr()) )); + } + } else + r.write_no_lang(VBool::get(type == "void")); +} + static void _copy(Request& r, MethodParams& params) { HashStringValue* src=params.as_no_junction(0, "source must not be code").get_hash(); - if(src==NULL) + if(src==NULL) throw Exception(PARSER_RUNTIME, 0, "source must have hash representation"); Value& dst=params.as_no_junction(1, "destination must not be code"); @@ -299,10 +354,10 @@ static void _uid(Request& r, MethodParam char local_buf[MAX_NUMBER]; int size=snprintf(local_buf, sizeof(local_buf), "%p", &obj); - r.write_pass_lang(*new String(pa_strdup(local_buf, (size_t)size), String::L_CLEAN, size)); + r.write_pass_lang(*new String(String::C(pa_strdup(local_buf, (size_t)size), size))); } -static void _delete(Request& r, MethodParams& params) { +static void _delete(Request&, MethodParams& params) { const String& key=params.as_string(1, "field name must be string"); if(HashStringValue* fields=params[0].get_fields()){ fields->remove(key); @@ -324,24 +379,42 @@ MReflection::MReflection(): Methoded("re // ^reflection:class_name[object] add_native_method("class_name", Method::CT_STATIC, _class_name, 1, 1); + // ^reflection:class_by_name[class_name] + add_native_method("class_by_name", Method::CT_STATIC, _class_by_name, 1, 1); + // ^reflection:base_class[object] add_native_method("base", Method::CT_STATIC, _base, 1, 1); // ^reflection:base_class_name[object] add_native_method("base_name", Method::CT_STATIC, _base_name, 1, 1); + // ^reflection:def[class|...;name] + add_native_method("def", Method::CT_STATIC, _def, 2, 2); + // ^reflection:methods[class_name] add_native_method("methods", Method::CT_STATIC, _methods, 1, 1); - // ^reflection:fields[object or class] - add_native_method("fields", Method::CT_STATIC, _fields, 1, 1); + // ^reflection:method[object or class;method_name] + add_native_method("method", Method::CT_STATIC, _method, 2, 2); // ^reflection:method_info[class_name;method_name] add_native_method("method_info", Method::CT_STATIC, _method_info, 2, 2); + // ^reflection:fields[object or class] + add_native_method("fields", Method::CT_STATIC, _fields, 1, 1); + + // ^reflection:fields_reference[object] + add_native_method("fields_reference", Method::CT_STATIC, _fields_reference, 1, 1); + + // ^reflection:field[object or class;field_name] + add_native_method("field", Method::CT_STATIC, _field, 2, 2); + // ^reflection:dynamical[[object or class, caller if absent]] add_native_method("dynamical", Method::CT_STATIC, _dynamical, 0, 1); + // ^reflection:is[element_name;class_name|code|method[;context]] + add_native_method("is", Method::CT_STATIC, _is, 2, 3); + // ^reflection:copy[src;dst] add_native_method("copy", Method::CT_STATIC, _copy, 2, 2);