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| version 1.236, 2002/04/18 10:51:01 | version 1.271, 2002/09/17 16:00:46 |
|---|---|
| Line 3 | Line 3 |
| Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| $Id$ | |
| */ | */ |
| static const char* IDENT_EXECUTE_C="$Date$"; | |
| #include "pa_opcode.h" | #include "pa_opcode.h" |
| #include "pa_array.h" | #include "pa_array.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| Line 46 char *opcode_name[]={ | Line 46 char *opcode_name[]={ |
| "WRITE_VALUE", "WRITE_EXPR_RESULT", "STRING__WRITE", | "WRITE_VALUE", "WRITE_EXPR_RESULT", "STRING__WRITE", |
| "GET_ELEMENT_OR_OPERATOR", "GET_ELEMENT", "GET_ELEMENT__WRITE", | "GET_ELEMENT_OR_OPERATOR", "GET_ELEMENT", "GET_ELEMENT__WRITE", |
| "OBJECT_POOL", "STRING_POOL", | "OBJECT_POOL", "STRING_POOL", |
| "GET_METHOD_FRAME", | |
| "STORE_PARAM", | "STORE_PARAM", |
| "PREPARE_TO_CONSTRUCT_OBJECT", "PREPARE_TO_EXPRESSION", | "PREPARE_TO_CONSTRUCT_OBJECT", "PREPARE_TO_EXPRESSION", |
| "CALL", "CALL__WRITE", | "CALL", "CALL__WRITE", |
| Line 99 void debug_dump(Pool& pool, int level, c | Line 98 void debug_dump(Pool& pool, int level, c |
| case OP_NESTED_CODE: | case OP_NESTED_CODE: |
| case OP_OBJECT_POOL: | case OP_OBJECT_POOL: |
| case OP_STRING_POOL: | case OP_STRING_POOL: |
| case OP_CALL: | |
| const Array *local_ops=reinterpret_cast<const Array *>(i.next()); | const Array *local_ops=reinterpret_cast<const Array *>(i.next()); |
| debug_dump(pool, level+1, *local_ops); | debug_dump(pool, level+1, *local_ops); |
| } | } |
| Line 118 void Request::execute(const Array& ops) | Line 118 void Request::execute(const Array& ops) |
| debug_dump(pool(), 0, ops); | debug_dump(pool(), 0, ops); |
| debug_printf(pool(), "execution-------------------------\n"); | debug_printf(pool(), "execution-------------------------\n"); |
| #endif | #endif |
| const String *last_get_element_name=0; | const String *last_get_element_name=0; |
| Array_iter i(ops); | Array_iter i(ops); |
| Line 143 void Request::execute(const Array& ops) | Line 142 void Request::execute(const Array& ops) |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_CURLY_CODE__STORE_PARAM: | |
| case OP_EXPR_CODE__STORE_PARAM: | |
| { | |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); | |
| // code | |
| const Array *local_ops=reinterpret_cast<const Array *>(i.next()); | |
| #ifdef DEBUG_EXECUTE | |
| debug_printf(pool(), " (%d)\n", local_ops->size()); | |
| debug_dump(pool(), 1, *local_ops); | |
| #endif | |
| // when they evaluate expression parameter, | |
| // the object expression result | |
| // does not need to be written into calling frame | |
| // it must go into any expressions using that parameter | |
| // hence, we zero junction.wcontext here, and later | |
| // in .process we would test that field | |
| // in decision "which wwrapper to use" | |
| Junction& j=*NEW Junction(pool(), | |
| *self, 0, 0, | |
| root, | |
| rcontext, | |
| op.code==OP_EXPR_CODE__STORE_PARAM?0:wcontext, | |
| local_ops); | |
| value=NEW VJunction(j); | |
| // store param | |
| frame->store_param(frame->name(), value); | |
| break; | |
| } | |
| case OP_GET_CLASS: | case OP_GET_CLASS: |
| { | { |
| // maybe they do ^class:method[] call, remember the fact | // maybe they do ^class:method[] call, remember the fact |
| Line 192 void Request::execute(const Array& ops) | Line 161 void Request::execute(const Array& ops) |
| // OP_WITH | // OP_WITH |
| case OP_WITH_ROOT: | case OP_WITH_ROOT: |
| { | { |
| PUSH(root); | PUSH(method_frame); |
| break; | break; |
| } | } |
| case OP_WITH_SELF: | case OP_WITH_SELF: |
| { | { |
| if(!self) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "you do not have 'self' here, use local variables"); | |
| PUSH(self); | PUSH(self); |
| break; | break; |
| } | } |
| Line 217 void Request::execute(const Array& ops) | Line 190 void Request::execute(const Array& ops) |
| value=POP(); | value=POP(); |
| const String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| ncontext->put_element(name, value); | ncontext->put_element(name, value, false); |
| break; | break; |
| } | } |
| case OP_CONSTRUCT_EXPR: | case OP_CONSTRUCT_EXPR: |
| Line 228 void Request::execute(const Array& ops) | Line 201 void Request::execute(const Array& ops) |
| value=POP(); | value=POP(); |
| const String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| ncontext->put_element(name, value->as_expr_result()); | ncontext->put_element(name, value->as_expr_result(), false); |
| break; | break; |
| } | } |
| case OP_CURLY_CODE__CONSTRUCT: | case OP_CURLY_CODE__CONSTRUCT: |
| Line 239 void Request::execute(const Array& ops) | Line 212 void Request::execute(const Array& ops) |
| debug_dump(pool(), 1, *local_ops); | debug_dump(pool(), 1, *local_ops); |
| #endif | #endif |
| Junction& j=*NEW Junction(pool(), | Junction& j=*NEW Junction(pool(), |
| *self, 0, 0, | self, 0, |
| root, | method_frame, |
| rcontext, | rcontext, |
| wcontext, | wcontext, |
| local_ops); | local_ops); |
| value=NEW VJunction(j); | value=NEW VJunction(j); |
| const String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| ncontext->put_element(name, value); | ncontext->put_element(name, value, false); |
| break; | break; |
| } | } |
| case OP_NESTED_CODE: | case OP_NESTED_CODE: |
| Line 289 void Request::execute(const Array& ops) | Line 262 void Request::execute(const Array& ops) |
| case OP_GET_ELEMENT_OR_OPERATOR: | 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; | //_asm int 3; |
| value=get_element(last_get_element_name, true); | value=get_element(last_get_element_name, true); |
| PUSH(value); | PUSH(value); |
| Line 299 void Request::execute(const Array& ops) | Line 269 void Request::execute(const Array& ops) |
| } | } |
| case OP_GET_ELEMENT: | case OP_GET_ELEMENT: |
| { | { |
| // maybe they do ^object.method[] call, remember the fact | |
| wcontext->set_somebody_entered_some_object(true); | |
| //_asm int 3; | //_asm int 3; |
| value=get_element(last_get_element_name, false); | value=get_element(last_get_element_name, false); |
| PUSH(value); | PUSH(value); |
| Line 320 void Request::execute(const Array& ops) | Line 287 void Request::execute(const Array& ops) |
| { | { |
| const Array *local_ops=reinterpret_cast<const Array *>(i.next()); | const Array *local_ops=reinterpret_cast<const Array *>(i.next()); |
| PUSH(wcontext); | WContext *saved_wcontext=wcontext; |
| PUSH((void *)flang); | uchar saved_lang= flang; |
| flang=String::UL_PASS_APPENDED; | flang=String::UL_PASS_APPENDED; |
| WWrapper local(pool(), 0 /*empty*/); | WWrapper local(pool(), 0 /*empty*/, wcontext); |
| wcontext=&local; | wcontext=&local; |
| execute(*local_ops); | execute(*local_ops); |
| value=&wcontext->result().as_value(); | value=&wcontext->result().as_value(); |
| flang=static_cast<String::Untaint_lang>(reinterpret_cast<int>(POP())); | flang=saved_lang; |
| wcontext=static_cast<WContext *>(POP()); | wcontext=saved_wcontext; |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 339 void Request::execute(const Array& ops) | Line 306 void Request::execute(const Array& ops) |
| { | { |
| const Array *local_ops=reinterpret_cast<const Array *>(i.next()); | const Array *local_ops=reinterpret_cast<const Array *>(i.next()); |
| PUSH(wcontext); | WContext *saved_wcontext=wcontext; |
| WWrapper local(pool(), 0 /*empty*/); | WWrapper local(pool(), 0 /*empty*/, wcontext); |
| wcontext=&local; | wcontext=&local; |
| execute(*local_ops); | execute(*local_ops); |
| Line 353 void Request::execute(const Array& ops) | Line 320 void Request::execute(const Array& ops) |
| value=NEW VString(*string); | value=NEW VString(*string); |
| else | else |
| NEW VVoid(pool()); | NEW VVoid(pool()); |
| wcontext=static_cast<WContext *>(POP()); | wcontext=saved_wcontext; |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| // CALL | // CALL |
| case OP_GET_METHOD_FRAME: | case OP_STORE_PARAM: |
| { | { |
| value=POP(); | value=POP(); |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); | |
| // info: | // this op is executed from CALL local_ops only, so can not check method_frame_to_fill==0 |
| // code compiled so that this one's always method-junction, | frame->store_param(value); |
| // not a code-junction | |
| Junction *junction=value->get_junction(); | |
| if(!junction) | |
| throw Exception("parser.runtime", | |
| last_get_element_name, | |
| "(%s) not a method or junction, can not call it", | |
| value->type()); | |
| VMethodFrame *frame=NEW VMethodFrame(pool(), *last_get_element_name, *junction); | |
| PUSH(frame); | |
| break; | break; |
| } | } |
| case OP_STORE_PARAM: | case OP_CURLY_CODE__STORE_PARAM: |
| case OP_EXPR_CODE__STORE_PARAM: | |
| { | { |
| value=POP(); | // code |
| const Array *local_ops=reinterpret_cast<const Array *>(i.next()); | |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); | VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); |
| frame->store_param(frame->name(), value); | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), " (%d)\n", local_ops->size()); | |
| debug_dump(pool(), 1, *local_ops); | |
| #endif | |
| // when they evaluate expression parameter, | |
| // the object expression result | |
| // does not need to be written into calling frame | |
| // it must go into any expressions using that parameter | |
| // hence, we zero junction.wcontext here, and later | |
| // in .process we would test that field | |
| // in decision "which wwrapper to use" | |
| Junction& j=*NEW Junction(pool(), | |
| self, 0, | |
| method_frame, | |
| rcontext, | |
| op.code==OP_EXPR_CODE__STORE_PARAM?0:wcontext, | |
| local_ops); | |
| value=NEW VJunction(j); | |
| // store param | |
| // this op is executed from CALL local_ops only, so can not check method_frame_to_fill==0 | |
| frame->store_param(value); | |
| break; | break; |
| } | } |
| Line 400 void Request::execute(const Array& ops) | Line 381 void Request::execute(const Array& ops) |
| case OP_CALL: | case OP_CALL: |
| case OP_CALL__WRITE: | case OP_CALL__WRITE: |
| { | { |
| Array *local_ops=static_cast<Array *>(i.next()); | |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), " (%d)\n", local_ops->size()); | |
| debug_dump(pool(), 1, *local_ops); | |
| debug_printf(pool(), "->\n"); | debug_printf(pool(), "->\n"); |
| #endif | #endif |
| VMethodFrame *frame=static_cast<VMethodFrame *>(POP()); | value=POP(); |
| frame->fill_unspecified_params(); | |
| PUSH(self); | // info: |
| PUSH(root); | // code compiled so that this one's always method-junction, |
| PUSH(rcontext); | // not a code-junction |
| PUSH(wcontext); | Junction *junction=value->get_junction(); |
| if(!junction) | |
| throw Exception("parser.runtime", | |
| last_get_element_name, | |
| "(%s) not a method or junction, can not call it", | |
| value->type()); | |
| VMethodFrame frame(pool(), *last_get_element_name, *junction); | |
| if(local_ops){ // store param code goes here | |
| PUSH(&frame); // argument for *STORE_PARAM ops | |
| execute(*local_ops); | |
| POP(); | |
| } | |
| frame.fill_unspecified_params(); | |
| Value *saved_self=self; | |
| VMethodFrame *saved_method_frame=method_frame; | |
| Value *saved_rcontext=rcontext; | |
| WContext *saved_wcontext=wcontext; | |
| VStateless_class *called_class=frame->junction.self.get_class(); | VStateless_class *called_class=frame.junction.self?frame.junction.self->get_class():0; |
| if(wcontext->get_constructing()) { | if(wcontext->get_constructing()) { |
| wcontext->set_constructing(false); | wcontext->set_constructing(false); |
| if(frame->junction.method->call_type!=Method::CT_STATIC) { | if(frame.junction.method->call_type!=Method::CT_STATIC) { |
| // this is a constructor call | // this is a constructor call |
| if(Value *value=called_class->create_new_value(pool())) { | if(Value *value=called_class->create_new_value(pool())) { |
| Line 421 void Request::execute(const Array& ops) | Line 423 void Request::execute(const Array& ops) |
| self=value; | self=value; |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &frame->name(), | &frame.name(), |
| "is not a constructor, system class '%s' can be constructed only implicitly", | "is not a constructor, system class '%s' can be constructed only implicitly", |
| called_class->name().cstr()); | called_class->name().cstr()); |
| frame->write(*self, | frame.write(*self, |
| String::UL_CLEAN // not used, always an object, not string | String::UL_CLEAN // not used, always an object, not string |
| ); | ); |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &frame->name(), | &frame.name(), |
| "method is static and can not be used as constructor"); | "method is static and can not be used as constructor"); |
| } else { | } else |
| // this is not constructor call | self=frame.junction.self; |
| // 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 | |
| } | |
| frame->set_self(*self); | frame.set_self(self); |
| // see OP_PREPARE_TO_EXPRESSION | // see OP_PREPARE_TO_EXPRESSION |
| frame->set_in_expression(wcontext->get_in_expression()); | frame.set_in_expression(wcontext->get_in_expression()); |
| rcontext=wcontext=frame; | rcontext=wcontext=&frame; |
| { | { |
| // take object or class from any wrappers | const Method& method=*frame.junction.method; |
| // 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= | Method::Call_type call_type= |
| called_class==self ? Method::CT_STATIC : Method::CT_DYNAMIC; | called_class==self ? Method::CT_STATIC : Method::CT_DYNAMIC; |
| if( | if( |
| Line 466 void Request::execute(const Array& ops) | Line 452 void Request::execute(const Array& ops) |
| method.call_type==call_type) { // allowed call type? | method.call_type==call_type) { // allowed call type? |
| try { | try { |
| if(method.native_code) { // native code? | if(method.native_code) { // native code? |
| // root unchanged, so that ^for ^foreach & co may write to locals | // method_frame unchanged, so that ^for ^foreach & co may write to locals |
| method.check_actual_numbered_params( | method.check_actual_numbered_params( |
| frame->junction.self, | frame.junction.self, |
| frame->name(), frame->numbered_params()); | frame.name(), frame.numbered_params()); |
| method.native_code( | method.native_code( |
| *this, | *this, |
| frame->name(), frame->numbered_params()); // execute it | frame.name(), frame.numbered_params()); // execute it |
| } else { // parser code | } else { // parser code |
| root=frame; | method_frame=&frame; |
| // execute it | // execute it |
| recoursion_checked_execute(&frame->name(), *method.parser_code); | recoursion_checked_execute(&frame.name(), *method.parser_code); |
| } | } |
| } catch(...) { | } catch(...) { |
| // record it to stack trace | // record it to stack trace |
| exception_trace.push((void *)&frame->name()); | exception_trace.push((void *)&frame.name()); |
| /*re*/throw; | /*re*/throw; |
| } | } |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &frame->name(), | &frame.name(), |
| "is not allowed to be called %s", | "is not allowed to be called %s", |
| call_type==Method::CT_STATIC?"statically":"dynamically"); | call_type==Method::CT_STATIC?"statically":"dynamically"); |
| } | } |
| StringOrValue result=wcontext->result(); | StringOrValue result=wcontext->result(); |
| wcontext=static_cast<WContext *>(POP()); | wcontext=saved_wcontext; |
| rcontext=POP(); | rcontext=saved_rcontext; |
| root=POP(); | method_frame=saved_method_frame; |
| self=static_cast<VAliased *>(POP()); | self=saved_self; |
| #ifdef DEBUG_STRING_APPENDS_VS_EXPANDS | #ifdef DEBUG_STRING_APPENDS_VS_EXPANDS |
| if(const String *s=value->get_string()) | if(const String *s=value->get_string()) |
| Line 504 void Request::execute(const Array& ops) | Line 490 void Request::execute(const Array& ops) |
| if(op.code==OP_CALL__WRITE) { | if(op.code==OP_CALL__WRITE) { |
| write_assign_lang(result, last_get_element_name); | 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 | } else { // OP_CALL |
| PUSH(&result.as_value()); | PUSH(&result.as_value()); |
| } | } |
| Line 715 void Request::execute(const Array& ops) | Line 698 void Request::execute(const Array& ops) |
| case OP_NUM_LT: | case OP_NUM_LT: |
| { | { |
| b=POP(); a=POP(); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), a->as_double() < b->as_double()); | double result=a->as_double() - b->as_double(); |
| value=NEW VBool(pool(), result < 0.0); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_GT: | case OP_NUM_GT: |
| { | { |
| b=POP(); a=POP(); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), a->as_double() > b->as_double()); | double result=a->as_double() - b->as_double(); |
| value=NEW VBool(pool(), result > 0.0); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_LE: | case OP_NUM_LE: |
| { | { |
| b=POP(); a=POP(); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), a->as_double() <= b->as_double()); | double result=a->as_double() - b->as_double(); |
| value=NEW VBool(pool(), result <= 0.0); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_GE: | case OP_NUM_GE: |
| { | { |
| b=POP(); a=POP(); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), a->as_double() >= b->as_double()); | double result=a->as_double() - b->as_double(); |
| value=NEW VBool(pool(), result >= 0.0); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_EQ: | case OP_NUM_EQ: |
| { | { |
| b=POP(); a=POP(); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), a->as_double() == b->as_double()); | double result=a->as_double() - b->as_double(); |
| value=NEW VBool(pool(), result == 0.0); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_NE: | case OP_NUM_NE: |
| { | { |
| b=POP(); a=POP(); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), a->as_double() != b->as_double()); | double result=a->as_double() - b->as_double(); |
| value=NEW VBool(pool(), result != 0.0); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 798 void Request::execute(const Array& ops) | Line 787 void Request::execute(const Array& ops) |
| } | } |
| case OP_IS: | case OP_IS: |
| { | { |
| //_asm int 3; | |
| b=POP(); a=POP(); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), b->as_string() == a->type()); | value=NEW VBool(pool(), a->is(b->as_string().cstr())); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 818 Value *Request::get_element(const String | Line 806 Value *Request::get_element(const String |
| const String& name=POP_NAME(); remember_name=&name; | const String& name=POP_NAME(); remember_name=&name; |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| Value *value=0; | Value *value=0; |
| if(can_call_operator) | if(can_call_operator) { |
| if(Method* method=OP.get_method(name)) { // looking operator of that name FIRST | 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 | // as if that method were in self and we have normal dynamic method here |
| Junction& junction=*NEW Junction(pool(), | Junction& junction=*NEW Junction(pool(), |
| *root, self->get_class(), method, 0,0,0,0); | method->native_code?method_frame/*for ^process*/:0, method, 0,0,0,0); |
| value=NEW VJunction(junction); | 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 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) | if(!value) |
| value=ncontext->get_element(name); | value=ncontext->get_element(name, ncontext, false); |
| _void: | |
| if(value) | if(value) |
| value=&process_to_value(*value); // process possible code-junction | value=&process_to_value(*value); // process possible code-junction |
| else | else |
| Line 854 StringOrValue Request::process(Value& in | Line 857 StringOrValue Request::process(Value& in |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), "ja->\n"); | debug_printf(pool(), "ja->\n"); |
| #endif | #endif |
| PUSH(self); | |
| PUSH(root); | if(!junction->method_frame) |
| PUSH(rcontext); | throw Exception("parser.runtime", |
| PUSH(wcontext); | 0, |
| "junction used outside of context"); | |
| Value *saved_self=self; | |
| VMethodFrame *saved_method_frame=method_frame; | |
| Value *saved_rcontext=rcontext; | |
| WContext *saved_wcontext=wcontext; | |
| self=&junction->self; | self=junction->self; |
| root=junction->root; | method_frame=junction->method_frame; |
| rcontext=junction->rcontext; | rcontext=junction->rcontext; |
| // for expression method params | // for expression method params |
| Line 870 StringOrValue Request::process(Value& in | Line 879 StringOrValue Request::process(Value& in |
| if(using_code_frame) { | if(using_code_frame) { |
| // almost plain wwrapper about junction wcontext, | // almost plain wwrapper about junction wcontext, |
| // BUT intercepts string writes | // BUT intercepts string writes |
| VCodeFrame local(pool(), *junction->wcontext); | VCodeFrame local(pool(), *junction->wcontext, junction->wcontext); |
| wcontext=&local; | wcontext=&local; |
| // execute it | // execute it |
| Line 882 StringOrValue Request::process(Value& in | Line 891 StringOrValue Request::process(Value& in |
| result.set_string(*wcontext->get_string()); | result.set_string(*wcontext->get_string()); |
| } else { | } else { |
| // plain wwrapper | // plain wwrapper |
| WWrapper local(pool(), 0/*empty*/); | WWrapper local(pool(), 0/*empty*/, wcontext); |
| wcontext=&local; | wcontext=&local; |
| // execute it | // execute it |
| Line 891 StringOrValue Request::process(Value& in | Line 900 StringOrValue Request::process(Value& in |
| result=wcontext->result(); | result=wcontext->result(); |
| } | } |
| wcontext=static_cast<WContext *>(POP()); | wcontext=saved_wcontext; |
| rcontext=POP(); | rcontext=saved_rcontext; |
| root=POP(); | method_frame=saved_method_frame; |
| self=static_cast<VAliased *>(POP()); | self=saved_self; |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), "<-ja returned"); | debug_printf(pool(), "<-ja returned"); |
| Line 905 StringOrValue Request::process(Value& in | Line 914 StringOrValue Request::process(Value& in |
| return result; | return result; |
| } | } |
| const String *Request::execute_method(Value& aself, const Method& method, | const String& Request::execute_method(VMethodFrame& amethod_frame, const Method& method) { |
| bool return_cstr) { | Value *saved_self=self; |
| PUSH(self); | VMethodFrame *saved_method_frame=method_frame; |
| PUSH(root); | Value *saved_rcontext=rcontext; |
| PUSH(rcontext); | WContext *saved_wcontext=wcontext; |
| PUSH(wcontext); | |
| // initialize contexts | // initialize contexts |
| root=rcontext=self=&aself; | self=rcontext=wcontext=method_frame=&amethod_frame; |
| WWrapper local(pool(), &aself); | |
| wcontext=&local; | |
| // execute! | // execute! |
| execute(*method.parser_code); | execute(*method.parser_code); |
| // result | // result |
| const String *result=0; | const String& result=wcontext->result().as_string(); |
| if(return_cstr) { | |
| if(Value *result_var_value=wcontext->get_element(*result_var_name)) | |
| result=&result_var_value->as_string(); | |
| else | |
| result=&wcontext->as_string(); | |
| } | |
| wcontext=static_cast<WContext *>(POP()); | wcontext=saved_wcontext; |
| rcontext=POP(); | rcontext=saved_rcontext; |
| root=POP(); | method_frame=saved_method_frame; |
| self=static_cast<VAliased *>(POP()); | self=saved_self; |
| // return | // return |
| return result; | return result; |
| } | } |
| const String& Request::execute_method(VMethodFrame& amethodFrame, const Method& method) { | void Request::execute_method(Value& aself, |
| PUSH(self); | const Method& method, VString *optional_param, |
| PUSH(root); | const String **return_string) { |
| PUSH(rcontext); | Value *saved_self=self; |
| PUSH(wcontext); | VMethodFrame *saved_method_frame=method_frame; |
| Value *saved_rcontext=rcontext; | |
| WContext *saved_wcontext=wcontext; | |
| // initialize contexts | // initialize contexts |
| root=rcontext=self=&amethodFrame; | //method_frame=rcontext=self=&aself; |
| wcontext=&amethodFrame; | self=&aself; |
| // WWrapper local(pool(), &aself, wcontext); | |
| // wcontext=&local; | |
| Junction local_junction(pool(), self, &method, 0,0,0,0); | |
| VMethodFrame local_frame(pool(), method.name, local_junction); | |
| if(optional_param && local_frame.can_store_param()) { | |
| local_frame.store_param(optional_param); | |
| local_frame.fill_unspecified_params(); | |
| } | |
| local_frame.set_self(self); | |
| rcontext=wcontext=method_frame=&local_frame; | |
| // prevent non-string writes for better error reporting | |
| if(return_string) | |
| wcontext->write(local_frame); | |
| // execute! | // execute! |
| execute(*method.parser_code); | execute(*method.parser_code); |
| // result | // result |
| const String& result=wcontext->result().as_string(); | const String *result=0; |
| if(return_string) | |
| wcontext=static_cast<WContext *>(POP()); | *return_string=&wcontext->result().as_string(); |
| rcontext=POP(); | |
| root=POP(); | |
| self=static_cast<VAliased *>(POP()); | |
| // return | wcontext=saved_wcontext; |
| return result; | rcontext=saved_rcontext; |
| method_frame=saved_method_frame; | |
| self=saved_self; | |
| } | |
| void Request::execute_nonvirtual_method(VStateless_class& aclass, | |
| const String& method_name, VString *optional_param, | |
| const String **return_string, | |
| const Method **return_method) { | |
| const Method *method=aclass.get_method(method_name); | |
| if(return_string) | |
| *return_string=0; | |
| if(return_method) | |
| *return_method=method; | |
| if(method) | |
| execute_method(aclass, *method, optional_param, return_string); | |
| } | } |
| const String *Request::execute_virtual_method(Value& aself, | const String *Request::execute_virtual_method(Value& aself, |
| const String& method_name) { | 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(Junction *junction=value->get_junction()) |
| if(const Method *method=junction->method) | if(const Method *method=junction->method) { |
| return execute_method(aself, *method, true /*return_cstr*/); | const String *result; |
| execute_method(aself, *method, 0/*no params*/, &result); | |
| return result; | |
| } | |
| return 0; | 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; | |
| } |