--- parser3/src/main/execute.C 2001/05/21 10:59:38 1.162 +++ parser3/src/main/execute.C 2001/07/26 10:47:02 1.185 @@ -4,16 +4,15 @@ Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: execute.C,v 1.162 2001/05/21 10:59:38 parser Exp $ */ +static const char *RCSId="$Id: execute.C,v 1.185 2001/07/26 10:47:02 parser Exp $"; #include "pa_opcode.h" #include "pa_array.h" #include "pa_request.h" #include "pa_vstring.h" #include "pa_vhash.h" -#include "pa_vunknown.h" +#include "pa_vvoid.h" #include "pa_vcode_frame.h" #include "pa_vmethod_frame.h" #include "pa_vobject.h" @@ -33,17 +32,16 @@ char *opcode_name[]={ "VALUE", "CURLY_CODE__STORE_PARAM", "EXPR_CODE__STORE_PARAM", // actions - "WITH_SELF", "WITH_ROOT", "WITH_READ", "WITH_WRITE", + "WITH_SELF", "WITH_READ", "WITH_WRITE", "GET_CLASS", - "CONSTRUCT_VALUE", "CONSTRUCT_DOUBLE", + "CONSTRUCT_VALUE", "CONSTRUCT_EXPR", "CURLY_CODE__CONSTRUCT", "WRITE_VALUE", "WRITE_EXPR_RESULT", "STRING__WRITE", "GET_ELEMENT", "GET_ELEMENT__WRITE", "CREATE_EWPOOL", "REDUCE_EWPOOL", - "CREATE_RWPOOL", "REDUCE_RWPOOL", "CREATE_SWPOOL", "REDUCE_SWPOOL", "GET_METHOD_FRAME", "STORE_PARAM", - "CALL", + "CALL_CONSTRUCTOR", "OP_CALL_METHOD", // expression ops: unary "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", "DEXISTS", @@ -70,7 +68,7 @@ void debug_printf(Pool& pool, const char } void debug_dump(Pool& pool, int level, const Array& ops) { - { +/* { int size=ops.quick_size(); //debug_printf(pool, "size=%d\n", size); for(int i=0; i(ops.quick_get(++i)); debug_dump(pool, level+1, *local_ops); } @@ -188,11 +189,6 @@ void Request::execute(const Array& ops) PUSH(self); break; } - case OP_WITH_ROOT: - { - PUSH(root); - break; - } case OP_WITH_READ: { PUSH(rcontext); @@ -223,6 +219,27 @@ void Request::execute(const Array& ops) value->set_name(name); break; } + case OP_CURLY_CODE__CONSTRUCT: + { + const Array *local_ops=reinterpret_cast(ops.quick_get(++i)); +#ifdef DEBUG_EXECUTE + debug_printf(pool(), " (%d)\n", local_ops->size()); + debug_dump(pool(), 1, *local_ops); +#endif + Junction& j=*NEW Junction(pool(), + *self, 0, 0, + root, + rcontext, + wcontext, + local_ops); + + Value *value=NEW VJunction(j); + const String& name=POP_NAME(); + Value *ncontext=POP(); + ncontext->put_element(name, value); + value->set_name(name); + break; + } case OP_WRITE_VALUE: { Value *value=POP(); @@ -254,6 +271,7 @@ void Request::execute(const Array& ops) // maybe they do ^object.method[] call, remember the fact wcontext->inc_somebody_entered_some_object(); + //_asm int 3; Value *value=get_element(); PUSH(value); break; @@ -284,28 +302,6 @@ void Request::execute(const Array& ops) break; } - case OP_CREATE_RWPOOL: - { - Value *ncontext=POP(); - PUSH(rcontext); - PUSH(wcontext); - rcontext=ncontext; - wcontext=NEW WWrapper(pool(), ncontext, false /*not constructing*/); - break; - } - case OP_REDUCE_RWPOOL: - { - const String *string=wcontext->get_string(); - Value *value; - if(string) - value=NEW VString(*string); - else - value=NEW VUnknown(pool()); - wcontext=static_cast(POP()); - rcontext=POP(); - PUSH(value); - break; - } case OP_CREATE_SWPOOL: { PUSH(wcontext); @@ -321,7 +317,7 @@ void Request::execute(const Array& ops) if(string) value=NEW VString(*string); else - NEW VUnknown(pool()); + NEW VVoid(pool()); wcontext=static_cast(POP()); PUSH(value); break; @@ -337,18 +333,12 @@ void Request::execute(const Array& ops) // not a code-junction Junction *junction=value->get_junction(); if(!junction) - THROW(0,0, + THROW(0, 0, &value->name(), "(%s) not a method or junction, can not call it", value->type()); - bool is_constructor= - wcontext->constructing() && // constructing? - wcontext->somebody_entered_some_class(); // ^class:method[..]? - if(is_constructor) - wcontext->constructing(false); - - VMethodFrame *frame=NEW VMethodFrame(pool(), value->name(), *junction, is_constructor); + VMethodFrame *frame=NEW VMethodFrame(pool(), value->name(), *junction); PUSH(frame); break; } @@ -360,7 +350,8 @@ void Request::execute(const Array& ops) break; } - case OP_CALL: + case OP_CALL_METHOD: + case OP_CALL_CONSTRUCTOR: { #ifdef DEBUG_EXECUTE debug_printf(pool(), "->\n"); @@ -373,30 +364,38 @@ void Request::execute(const Array& ops) PUSH(wcontext); VStateless_class *called_class=frame->junction.self.get_class(); - // not ^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->somebody_entered_some_object() && - read_class && read_class->is_or_derived_from(*called_class)) // yes - self=rcontext; // class dynamic call - else // no, not me or relative of mine (total stranger) - // were are constructing something and - // our constructor is just method call and - // not static-only-method call - if(frame->is_constructor && - wcontext->somebody_entered_some_object()==1 && - frame->junction.method->call_type!=Method::CT_STATIC) { + if(op.code==OP_CALL_CONSTRUCTOR) { + if(frame->junction.method->call_type!=Method::CT_STATIC) { // this is a constructor call - // some stateless_object creatable derivates - if(Value *value=called_class->create_new_value(pool())) + + if(Value *value=called_class->create_new_value(pool())) { + // some stateless_object creatable derivates self=value; - else // stateful object + } else { + // stateful object self=NEW VObject(pool(), *called_class); + } frame->write(*self, String::UL_CLEAN // not used, always an object, not string ); - } else - self=&frame->junction.self; // no, static or simple dynamic call + } else + THROW(0, 0, + &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->somebody_entered_some_object() && + !wcontext->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 + } frame->set_self(*self); root=rcontext=wcontext=frame; @@ -530,16 +529,44 @@ void Request::execute(const Array& ops) case OP_DIV: { Value *b=POP(); Value *a=POP(); - Value *value=NEW VDouble(pool(), a->as_double() / b->as_double()); + + double a_double=a->as_double(); + double b_double=b->as_double(); + + if(b_double == 0) { + const String *problem_source=&b->as_string(); +#ifndef NO_STRING_ORIGIN + if(!problem_source->origin().file) + problem_source=&b->name(); +#endif + THROW(0, 0, + problem_source, + "Division by zero"); + } + + Value *value=NEW VDouble(pool(), a_double / b_double); PUSH(value); break; } case OP_MOD: { Value *b=POP(); Value *a=POP(); - Value *value=NEW VDouble(pool(), - a->as_int() % - b->as_int()); + + double a_double=a->as_double(); + double b_double=b->as_double(); + + if(b_double == 0) { + const String *problem_source=&b->as_string(); +#ifndef NO_STRING_ORIGIN + if(!problem_source->origin().file) + problem_source=&b->name(); +#endif + THROW(0, 0, + problem_source, + "Modulus by zero"); + } + + Value *value=NEW VDouble(pool(), fmod(a_double, b_double)); PUSH(value); break; } @@ -694,18 +721,18 @@ void Request::execute(const Array& ops) Value *Request::get_element() { const String& name=POP_NAME(); Value *ncontext=POP(); - Value *value; - if(Method* method=OP.get_method(name)) { // operator? - // as if that method were in self and we have normal dynamic method here - Junction& junction=*NEW Junction(pool(), - *self, self->get_class(), method, 0,0,0,0); - value=NEW VJunction(junction); - } else - value=ncontext->get_element(name); + Value *value=ncontext->get_element(name); + if(!value) + if(Method* method=OP.get_method(name)) { // maybe operator? + // as if that method were in self and we have normal dynamic method here + Junction& junction=*NEW Junction(pool(), + *self, self->get_class(), method, 0,0,0,0); + value=NEW VJunction(junction); + } if(value) value=&process(*value, &name); // process possible code-junction else { - value=NEW VUnknown(pool()); + value=NEW VVoid(pool()); value->set_name(name); } @@ -748,6 +775,7 @@ Value& Request::process(Value& value, co frame=NEW WWrapper(pool(), 0/*empty*/, false/*not constructing*/); } + //frame->set_name(value.name()); wcontext=frame; self=&junction->self; root=junction->root; @@ -777,7 +805,8 @@ Value& Request::process(Value& value, co return *result; } -const String *Request::execute_method(Value& aself, const Method& method, bool return_cstr) { +const String *Request::execute_method(Value& aself, const Method& method, + bool return_cstr) { PUSH(self); PUSH(root); PUSH(rcontext); @@ -806,8 +835,9 @@ const String *Request::execute_method(Va return result; } -const String *Request::execute_method(Value& aself, - const String& method_name, bool return_cstr) { +const String *Request::execute_virtual_method(Value& aself, + const String& method_name, + bool return_cstr) { if(Value *value=aself.get_element(method_name)) if(Junction *junction=value->get_junction()) if(const Method *method=junction->method) @@ -815,3 +845,12 @@ const String *Request::execute_method(Va return 0; } + +const String *Request::execute_nonvirtual_method(VStateless_class& aclass, + const String& method_name, + bool return_cstr) { + if(const Method *method=aclass.get_method(method_name)) + return execute_method(aclass, *method, return_cstr); + + return 0; +}