--- parser3/src/main/execute.C 2002/08/01 11:26:49 1.243 +++ parser3/src/main/execute.C 2002/08/14 14:18:28 1.253 @@ -5,7 +5,7 @@ Author: Alexandr Petrosian (http://paf.design.ru) */ -static const char* IDENT_EXECUTE_C="$Id: execute.C,v 1.243 2002/08/01 11:26:49 paf Exp $"; +static const char* IDENT_EXECUTE_C="$Date: 2002/08/14 14:18:28 $"; #include "pa_opcode.h" #include "pa_array.h" @@ -231,7 +231,7 @@ void Request::execute(const Array& ops) value=POP(); const String& name=POP_NAME(); Value *ncontext=POP(); - ncontext->put_element(name, value); + ncontext->put_element(name, value, false); break; } case OP_CONSTRUCT_EXPR: @@ -242,7 +242,7 @@ void Request::execute(const Array& ops) value=POP(); const String& name=POP_NAME(); Value *ncontext=POP(); - ncontext->put_element(name, value->as_expr_result()); + ncontext->put_element(name, value->as_expr_result(), false); break; } case OP_CURLY_CODE__CONSTRUCT: @@ -263,7 +263,7 @@ void Request::execute(const Array& ops) value=NEW VJunction(j); const String& name=POP_NAME(); Value *ncontext=POP(); - ncontext->put_element(name, value); + ncontext->put_element(name, value, false); break; } case OP_NESTED_CODE: @@ -304,9 +304,6 @@ void Request::execute(const Array& ops) case OP_GET_ELEMENT_OR_OPERATOR: { - // maybe they do ^object.method[] call, remember the fact - wcontext->set_somebody_entered_some_object(true); - //_asm int 3; value=get_element(last_get_element_name, true); PUSH(value); @@ -314,9 +311,6 @@ void Request::execute(const Array& ops) } case OP_GET_ELEMENT: { - // maybe they do ^object.method[] call, remember the fact - wcontext->set_somebody_entered_some_object(true); - //_asm int 3; value=get_element(last_get_element_name, false); PUSH(value); @@ -482,20 +476,8 @@ void Request::execute(const Array& ops) throw Exception("parser.runtime", &frame.name(), "method is static and can not be used as constructor"); - } else { - // this is not constructor call - - // not ^name.method call, name:method call; and - // is context object or class & is it my class or my parent's class and? - VStateless_class *read_class=rcontext->get_class(); - if( - !(wcontext->get_somebody_entered_some_object() && - !wcontext->get_somebody_entered_some_class()) && - read_class && read_class->is_or_derived_from(*called_class)) // yes - self=rcontext; // dynamic call - else // no, not me or relative of mine (=total stranger) - self=&frame.junction.self; // static call - } + } else + self=&frame.junction.self; frame.set_self(*self); @@ -504,10 +486,6 @@ void Request::execute(const Array& ops) rcontext=wcontext=&frame; { - // take object or class from any wrappers - // and substitute class alias to the class they are called AS - Temp_alias temp_alias(*self->get_aliased(), *frame.junction.vclass); - const Method& method=*frame.junction.method; Method::Call_type call_type= called_class==self ? Method::CT_STATIC : Method::CT_DYNAMIC; @@ -545,7 +523,7 @@ void Request::execute(const Array& ops) wcontext=static_cast(POP()); rcontext=POP(); root=POP(); - self=static_cast(POP()); + self=static_cast(POP()); #ifdef DEBUG_STRING_APPENDS_VS_EXPANDS if(const String *s=value->get_string()) @@ -554,9 +532,6 @@ void Request::execute(const Array& ops) if(op.code==OP_CALL__WRITE) { write_assign_lang(result, last_get_element_name); - // forget the fact they've entered some ^object.method[]. - // see OP_GET_ELEMENT - wcontext->set_somebody_entered_some_object(false); } else { // OP_CALL PUSH(&result.as_value()); } @@ -848,9 +823,8 @@ void Request::execute(const Array& ops) } case OP_IS: { - //_asm int 3; b=POP(); a=POP(); - value=NEW VBool(pool(), b->as_string() == a->type()); + value=NEW VBool(pool(), a->is(b->as_string().cstr(), false)); PUSH(value); break; } @@ -868,15 +842,30 @@ Value *Request::get_element(const String const String& name=POP_NAME(); remember_name=&name; Value *ncontext=POP(); Value *value=0; - if(can_call_operator) + if(can_call_operator) { if(Method* method=OP.get_method(name)) { // looking operator of that name FIRST // as if that method were in self and we have normal dynamic method here Junction& junction=*NEW Junction(pool(), *root, self->get_class(), method, 0,0,0,0); value=NEW VJunction(junction); } + } + if(!value) { + if(!wcontext->get_constructing() // not constructing + && wcontext->get_somebody_entered_some_class() ) // ^class:method + if(VStateless_class *called_class=ncontext->get_class()) + if(VStateless_class *read_class=rcontext->get_class()) + if(read_class->derived_from(*called_class)) // current derived from called + if(Value *base_object=self->base_object()) { // doing DYNAMIC call + Temp_derived(*base_object, 0); // temporarily prevent go-back-down virtual calls + value=base_object->get_element(name, base_object, false); // virtual-up lookup starting from parent + goto _void; + } + } if(!value) - value=ncontext->get_element(name); + value=ncontext->get_element(name, ncontext, false); + +_void: if(value) value=&process_to_value(*value); // process possible code-junction else @@ -950,7 +939,7 @@ StringOrValue Request::process(Value& in wcontext=static_cast(POP()); rcontext=POP(); root=POP(); - self=static_cast(POP()); + self=static_cast(POP()); #ifdef DEBUG_EXECUTE debug_printf(pool(), "<-ja returned"); @@ -980,7 +969,7 @@ const String& Request::execute_method(VM wcontext=static_cast(POP()); rcontext=POP(); root=POP(); - self=static_cast(POP()); + self=static_cast(POP()); // return return result; @@ -1007,24 +996,23 @@ void Request::execute_method(Value& asel } local_frame.set_self(*self); root=rcontext=wcontext=&local_frame; + + // prevent non-string writes for better error reporting + if(return_string) + wcontext->write(local_frame); // execute! execute(*method.parser_code); // result const String *result=0; - if(return_string) { - /*if(Value *result_var_value=wcontext->get_element(*result_var_name)) - *return_string=&result_var_value->as_string(); - else - *return_string=&wcontext->as_string();*/ + if(return_string) *return_string=&wcontext->result().as_string(); - } wcontext=static_cast(POP()); rcontext=POP(); root=POP(); - self=static_cast(POP()); + self=static_cast(POP()); } void Request::execute_nonvirtual_method(VStateless_class& aclass, @@ -1044,7 +1032,7 @@ void Request::execute_nonvirtual_method( const String *Request::execute_virtual_method(Value& aself, const String& method_name) { - if(Value *value=aself.get_element(method_name)) + if(Value *value=aself.get_element(method_name, &aself, false)) if(Junction *junction=value->get_junction()) if(const Method *method=junction->method) { const String *result;