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| version 1.185, 2001/07/26 10:47:02 | version 1.229, 2002/04/15 11:33:31 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: executor part of request class. | Parser: executor part of request class. |
| Copyright (c) 2001 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: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | $Id$ |
| */ | */ |
| static const char *RCSId="$Id$"; | |
| #include "pa_opcode.h" | #include "pa_opcode.h" |
| #include "pa_array.h" | #include "pa_array.h" |
| Line 21 static const char *RCSId="$Id$"; | Line 21 static const char *RCSId="$Id$"; |
| #include "pa_vtable.h" | #include "pa_vtable.h" |
| #include "pa_vfile.h" | #include "pa_vfile.h" |
| #include "pa_vimage.h" | #include "pa_vimage.h" |
| #include "pa_wwrapper.h" | |
| //#define DEBUG_EXECUTE | //#define DEBUG_EXECUTE |
| //#define DEBUG_STRING_APPENDS_VS_EXPANDS | |
| #ifdef DEBUG_STRING_APPENDS_VS_EXPANDS | |
| ulong wcontext_result_size=0; | |
| #endif | |
| const uint ANTI_ENDLESS_EXECUTE_RECOURSION=500; | |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| char *opcode_name[]={ | char *opcode_name[]={ |
| // literals | // literals |
| "VALUE", "CURLY_CODE__STORE_PARAM", "EXPR_CODE__STORE_PARAM", | "VALUE", "CURLY_CODE__STORE_PARAM", "EXPR_CODE__STORE_PARAM", |
| "NESTED_CODE", | |
| // actions | // actions |
| "WITH_SELF", "WITH_READ", "WITH_WRITE", | "WITH_ROOT", "WITH_SELF", "WITH_READ", "WITH_WRITE", |
| "GET_CLASS", | "GET_CLASS", |
| "CONSTRUCT_VALUE", "CONSTRUCT_EXPR", "CURLY_CODE__CONSTRUCT", | "CONSTRUCT_VALUE", "CONSTRUCT_EXPR", "CURLY_CODE__CONSTRUCT", |
| "WRITE_VALUE", "WRITE_EXPR_RESULT", "STRING__WRITE", | "WRITE_VALUE", "WRITE_EXPR_RESULT", "STRING__WRITE", |
| "GET_ELEMENT", "GET_ELEMENT__WRITE", | "GET_ELEMENT_OR_OPERATOR", "GET_ELEMENT", "GET_ELEMENT__WRITE", |
| "CREATE_EWPOOL", "REDUCE_EWPOOL", | "OBJECT_POOL", |
| "CREATE_SWPOOL", "REDUCE_SWPOOL", | "STRING_POOL", |
| "GET_METHOD_FRAME", | "GET_METHOD_FRAME", |
| "STORE_PARAM", | "STORE_PARAM", |
| "CALL_CONSTRUCTOR", "OP_CALL_METHOD", | "PREPARE_TO_CONSTRUCT_OBJECT", "PREPARE_TO_EXPRESSION", "CALL", |
| // expression ops: unary | // expression ops: unary |
| "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", "DEXISTS", | "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", "DEXISTS", |
| // expression ops: binary | // expression ops: binary |
| "SUB", "ADD", "MUL", "DIV", "MOD", | "SUB", "ADD", "MUL", "DIV", "MOD", "INTDIV", |
| "BIN_AND", "BIN_OR", "BIN_XOR", | "BIN_AND", "BIN_OR", "BIN_XOR", |
| "LOG_AND", "LOG_OR", "LOG_XOR", | "LOG_AND", "LOG_OR", "LOG_XOR", |
| "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE", | "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE", |
| Line 68 void debug_printf(Pool& pool, const char | Line 76 void debug_printf(Pool& pool, const char |
| } | } |
| void debug_dump(Pool& pool, int level, const Array& ops) { | void debug_dump(Pool& pool, int level, const Array& ops) { |
| /* { | Array_iter i(ops); |
| int size=ops.quick_size(); | while(i.has_next()) { |
| //debug_printf(pool, "size=%d\n", size); | |
| for(int i=0; i<size; i++) { | |
| Operation op; | |
| op.cast=ops.quick_get(i); | |
| debug_printf(pool, "%8X\n", op.cast); | |
| } | |
| }*/ | |
| int size=ops.quick_size(); | |
| //debug_printf(pool, "size=%d\n", size); | |
| for(int i=0; i<size; i++) { | |
| Operation op; | Operation op; |
| op.cast=ops.quick_get(i); | op.cast=i.next(); |
| if(op.code==OP_VALUE || op.code==OP_STRING__WRITE) { | if(op.code==OP_VALUE || op.code==OP_STRING__WRITE) { |
| Value *value=static_cast<Value *>(ops.quick_get(++i)); | Value *value=static_cast<Value *>(i.next()); |
| debug_printf(pool, | debug_printf(pool, |
| "%*s%s" | "%*s%s" |
| " \"%s\" %s", | " \"%s\" %s", |
| Line 99 void debug_dump(Pool& pool, int level, c | Line 96 void debug_dump(Pool& pool, int level, c |
| case OP_CURLY_CODE__STORE_PARAM: | case OP_CURLY_CODE__STORE_PARAM: |
| case OP_EXPR_CODE__STORE_PARAM: | case OP_EXPR_CODE__STORE_PARAM: |
| case OP_CURLY_CODE__CONSTRUCT: | case OP_CURLY_CODE__CONSTRUCT: |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); | case OP_NESTED_CODE: |
| case OP_OBJECT_POOL: | |
| case OP_STRING_POOL: | |
| 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 109 void debug_dump(Pool& pool, int level, c | Line 109 void debug_dump(Pool& pool, int level, c |
| #define PUSH(value) stack.push(value) | #define PUSH(value) stack.push(value) |
| #define POP() static_cast<Value *>(stack.pop()) | #define POP() static_cast<Value *>(stack.pop()) |
| #define POP_NAME() static_cast<Value *>(stack.pop())->as_string() | #define POP_NAME() static_cast<Value *>(stack.pop())->as_string() |
| #define POP_CODE() static_cast<Array *>(stack.pop()) | |
| void Request::execute(const Array& ops) { | void Request::execute(const Array& ops) { |
| // _asm int 3; | |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), "source----------------------------\n"); | debug_printf(pool(), "source----------------------------\n"); |
| debug_dump(pool(), 0, ops); | debug_dump(pool(), 0, ops); |
| debug_printf(pool(), "execution-------------------------\n"); | debug_printf(pool(), "execution-------------------------\n"); |
| #endif | #endif |
| int size=ops.quick_size(); | Array_iter i(ops); |
| //debug_printf(pool(), "size=%d\n", size); | while(i.has_next()) { |
| for(int i=0; i<size; i++) { | |
| Operation op; | Operation op; |
| op.cast=ops.quick_get(i); | op.cast=i.next(); |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), "%d:%s", stack.top_index()+1, opcode_name[op.code]); | debug_printf(pool(), "%d:%s", stack.top_index()+1, opcode_name[op.code]); |
| #endif | #endif |
| Value *value; | |
| Value *a; Value *b; | |
| Array *b_code; | |
| switch(op.code) { | switch(op.code) { |
| // param in next instruction | // param in next instruction |
| case OP_VALUE: | case OP_VALUE: |
| { | { |
| Value *value=static_cast<Value *>(ops.quick_get(++i)); | value=static_cast<Value *>(i.next()); |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), " \"%s\" %s", value->get_string()->cstr(), value->type()); | debug_printf(pool(), " \"%s\" %s", value->get_string()->cstr(), value->type()); |
| #endif | #endif |
| Line 142 void Request::execute(const Array& ops) | Line 146 void Request::execute(const Array& ops) |
| { | { |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); | VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); |
| // code | // code |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); | const Array *local_ops=reinterpret_cast<const Array *>(i.next()); |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), " (%d)\n", local_ops->size()); | debug_printf(pool(), " (%d)\n", local_ops->size()); |
| debug_dump(pool(), 1, *local_ops); | debug_dump(pool(), 1, *local_ops); |
| Line 161 void Request::execute(const Array& ops) | Line 165 void Request::execute(const Array& ops) |
| op.code==OP_EXPR_CODE__STORE_PARAM?0:wcontext, | op.code==OP_EXPR_CODE__STORE_PARAM?0:wcontext, |
| local_ops); | local_ops); |
| Value *value=NEW VJunction(j); | value=NEW VJunction(j); |
| // store param | // store param |
| frame->store_param(frame->name(), value); | frame->store_param(frame->name(), value); |
| Line 173 void Request::execute(const Array& ops) | Line 177 void Request::execute(const Array& ops) |
| wcontext->set_somebody_entered_some_class(); | wcontext->set_somebody_entered_some_class(); |
| const String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *value=static_cast<Value *>(classes().get(name)); | value=static_cast<Value *>(classes().get(name)); |
| if(!value) | if(!value) |
| THROW(0,0, | throw Exception("parser.runtime", |
| &name, | &name, |
| "class is undefined"); | "class is undefined"); |
| Line 184 void Request::execute(const Array& ops) | Line 188 void Request::execute(const Array& ops) |
| } | } |
| // OP_WITH | // OP_WITH |
| case OP_WITH_ROOT: | |
| { | |
| PUSH(root); | |
| break; | |
| } | |
| case OP_WITH_SELF: | case OP_WITH_SELF: |
| { | { |
| PUSH(self); | PUSH(self); |
| Line 203 void Request::execute(const Array& ops) | Line 212 void Request::execute(const Array& ops) |
| // OTHER ACTIONS BUT WITHs | // OTHER ACTIONS BUT WITHs |
| case OP_CONSTRUCT_VALUE: | case OP_CONSTRUCT_VALUE: |
| { | { |
| Value *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); |
| Line 212 void Request::execute(const Array& ops) | Line 221 void Request::execute(const Array& ops) |
| } | } |
| case OP_CONSTRUCT_EXPR: | case OP_CONSTRUCT_EXPR: |
| { | { |
| Value *value=POP(); | // see OP_PREPARE_TO_EXPRESSION |
| wcontext->set_in_expression(false); | |
| 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()); |
| Line 221 void Request::execute(const Array& ops) | Line 233 void Request::execute(const Array& ops) |
| } | } |
| case OP_CURLY_CODE__CONSTRUCT: | case OP_CURLY_CODE__CONSTRUCT: |
| { | { |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); | const Array *local_ops=reinterpret_cast<const Array *>(i.next()); |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), " (%d)\n", local_ops->size()); | debug_printf(pool(), " (%d)\n", local_ops->size()); |
| debug_dump(pool(), 1, *local_ops); | debug_dump(pool(), 1, *local_ops); |
| Line 233 void Request::execute(const Array& ops) | Line 245 void Request::execute(const Array& ops) |
| wcontext, | wcontext, |
| local_ops); | local_ops); |
| Value *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); |
| value->set_name(name); | value->set_name(name); |
| break; | break; |
| } | } |
| case OP_NESTED_CODE: | |
| { | |
| Array *local_ops=static_cast<Array *>(i.next()); | |
| #ifdef DEBUG_EXECUTE | |
| debug_printf(pool(), " (%d)\n", local_ops->size()); | |
| debug_dump(pool(), 1, *local_ops); | |
| #endif | |
| PUSH(local_ops); | |
| break; | |
| } | |
| case OP_WRITE_VALUE: | case OP_WRITE_VALUE: |
| { | { |
| Value *value=POP(); | value=POP(); |
| write_assign_lang(*value); | write_assign_lang(*value); |
| // forget the fact they've entered some ^object.method[]. | // forget the fact they've entered some ^object.method[]. |
| // see OP_GET_ELEMENT | // see OP_GET_ELEMENT |
| wcontext->clear_somebody_entered_some_object(); | wcontext->set_somebody_entered_some_object(false); |
| break; | break; |
| } | } |
| case OP_WRITE_EXPR_RESULT: | case OP_WRITE_EXPR_RESULT: |
| { | { |
| Value *value=POP(); | // see OP_PREPARE_TO_EXPRESSION |
| wcontext->set_in_expression(false); | |
| value=POP(); | |
| write_expr_result(*value->as_expr_result()); | write_expr_result(*value->as_expr_result()); |
| break; | break; |
| } | } |
| case OP_STRING__WRITE: | case OP_STRING__WRITE: |
| { | { |
| VString *vstring=static_cast<VString *>(ops.quick_get(++i)); | VString *vstring=static_cast<VString *>(i.next()); |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), " \"%s\"", vstring->string().cstr()); | debug_printf(pool(), " \"%s\"", vstring->string().cstr()); |
| #endif | #endif |
| Line 266 void Request::execute(const Array& ops) | Line 291 void Request::execute(const Array& ops) |
| break; | break; |
| } | } |
| 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(true); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_GET_ELEMENT: | case OP_GET_ELEMENT: |
| { | { |
| // maybe they do ^object.method[] call, remember the fact | // maybe they do ^object.method[] call, remember the fact |
| wcontext->inc_somebody_entered_some_object(); | wcontext->set_somebody_entered_some_object(true); |
| //_asm int 3; | //_asm int 3; |
| Value *value=get_element(); | value=get_element(false); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_GET_ELEMENT__WRITE: | case OP_GET_ELEMENT__WRITE: |
| { | { |
| Value *value=get_element(); | value=get_element(false); |
| write_assign_lang(*value); | write_assign_lang(*value); |
| break; | break; |
| } | } |
| case OP_CREATE_EWPOOL: | case OP_OBJECT_POOL: |
| { | { |
| const Array *local_ops=reinterpret_cast<const Array *>(i.next()); | |
| PUSH(wcontext); | PUSH(wcontext); |
| PUSH((void *)flang); | PUSH((void *)flang); |
| flang=String::UL_PASS_APPENDED; | flang=String::UL_PASS_APPENDED; |
| wcontext=NEW WWrapper(pool(), 0 /*empty*/, true /*constructing*/); | WWrapper local(pool(), 0 /*empty*/); |
| break; | wcontext=&local; |
| } | |
| case OP_REDUCE_EWPOOL: | execute(*local_ops); |
| { | |
| Value *value=wcontext->result(); | value=&wcontext->result().as_value(); |
| flang=static_cast<String::Untaint_lang>(reinterpret_cast<int>(POP())); | flang=static_cast<String::Untaint_lang>(reinterpret_cast<int>(POP())); |
| wcontext=static_cast<WContext *>(POP()); | wcontext=static_cast<WContext *>(POP()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_CREATE_SWPOOL: | case OP_STRING_POOL: |
| { | { |
| const Array *local_ops=reinterpret_cast<const Array *>(i.next()); | |
| PUSH(wcontext); | PUSH(wcontext); |
| wcontext=NEW WWrapper(pool(), 0 /*empty*/, false /*not constructing*/); | WWrapper local(pool(), 0 /*empty*/); |
| break; | wcontext=&local; |
| } | |
| case OP_REDUCE_SWPOOL: | execute(*local_ops); |
| { | |
| // from "$a $b" part of expression taking only string value, | // from "$a $b" part of expression taking only string value, |
| // ignoring any other content of wcontext | // ignoring any other content of wcontext |
| const String *string=wcontext->get_string(); | const String *string=wcontext->get_string(); |
| Line 326 void Request::execute(const Array& ops) | Line 365 void Request::execute(const Array& ops) |
| // CALL | // CALL |
| case OP_GET_METHOD_FRAME: | case OP_GET_METHOD_FRAME: |
| { | { |
| Value *value=POP(); | value=POP(); |
| // info: | // info: |
| // code compiled so that this one's always method-junction, | // code compiled so that this one's always method-junction, |
| // not a code-junction | // not a code-junction |
| Junction *junction=value->get_junction(); | Junction *junction=value->get_junction(); |
| if(!junction) | if(!junction) |
| THROW(0, 0, | throw Exception("parser.runtime", |
| &value->name(), | &value->name(), |
| "(%s) not a method or junction, can not call it", | "(%s) not a method or junction, can not call it", |
| value->type()); | value->type()); |
| Line 344 void Request::execute(const Array& ops) | Line 383 void Request::execute(const Array& ops) |
| } | } |
| case OP_STORE_PARAM: | case OP_STORE_PARAM: |
| { | { |
| Value *value=POP(); | value=POP(); |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); | VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); |
| frame->store_param(frame->name(), value); | frame->store_param(frame->name(), value); |
| break; | break; |
| } | } |
| case OP_CALL_METHOD: | case OP_PREPARE_TO_CONSTRUCT_OBJECT: |
| case OP_CALL_CONSTRUCTOR: | { |
| wcontext->set_constructing(true); | |
| break; | |
| } | |
| case OP_PREPARE_TO_EXPRESSION: | |
| { | |
| wcontext->set_in_expression(true); | |
| break; | |
| } | |
| case OP_CALL: | |
| { | { |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), "->\n"); | debug_printf(pool(), "->\n"); |
| Line 364 void Request::execute(const Array& ops) | Line 414 void Request::execute(const Array& ops) |
| PUSH(wcontext); | PUSH(wcontext); |
| VStateless_class *called_class=frame->junction.self.get_class(); | VStateless_class *called_class=frame->junction.self.get_class(); |
| if(op.code==OP_CALL_CONSTRUCTOR) { | if(wcontext->get_constructing()) { |
| 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())) { |
| // some stateless_object creatable derivates | // some stateless_class creatable derivates |
| self=value; | self=value; |
| } else { | } else |
| // stateful object | throw Exception("parser.runtime", |
| self=NEW VObject(pool(), *called_class); | &frame->name(), |
| } | "is not a constructor, system class '%s' can be constructed only implicitly", |
| 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(0, 0, | 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 { |
| Line 389 void Request::execute(const Array& ops) | Line 442 void Request::execute(const Array& ops) |
| // is context object or class & is it my class or my parent's class and? | // is context object or class & is it my class or my parent's class and? |
| VStateless_class *read_class=rcontext->get_class(); | VStateless_class *read_class=rcontext->get_class(); |
| if( | if( |
| !(wcontext->somebody_entered_some_object() && | !(wcontext->get_somebody_entered_some_object() && |
| !wcontext->somebody_entered_some_class()) && | !wcontext->get_somebody_entered_some_class()) && |
| read_class && read_class->is_or_derived_from(*called_class)) // yes | read_class && read_class->is_or_derived_from(*called_class)) // yes |
| self=rcontext; // dynamic call | self=rcontext; // dynamic call |
| else // no, not me or relative of mine (=total stranger) | else // no, not me or relative of mine (=total stranger) |
| Line 398 void Request::execute(const Array& ops) | Line 451 void Request::execute(const Array& ops) |
| } | } |
| frame->set_self(*self); | frame->set_self(*self); |
| root=rcontext=wcontext=frame; | |
| // see OP_PREPARE_TO_EXPRESSION | |
| frame->set_in_expression(wcontext->get_in_expression()); | |
| rcontext=wcontext=frame; | |
| { | { |
| // take object or class from any wrappers | // take object or class from any wrappers |
| // and substitute class alias to the class they are called AS | // and substitute class alias to the class they are called AS |
| Line 409 void Request::execute(const Array& ops) | Line 466 void Request::execute(const Array& ops) |
| called_class==self ? Method::CT_STATIC : Method::CT_DYNAMIC; | called_class==self ? Method::CT_STATIC : Method::CT_DYNAMIC; |
| if( | if( |
| method.call_type==Method::CT_ANY || | method.call_type==Method::CT_ANY || |
| method.call_type==call_type) // allowed call type? | method.call_type==call_type) { // allowed call type? |
| if(method.native_code) { // native code? | try { |
| method.check_actual_numbered_params(pool(), | if(method.native_code) { // native code? |
| frame->junction.self, | // root unchanged, so that ^for ^foreach & co may write to locals |
| frame->name(), frame->numbered_params()); | method.check_actual_numbered_params( |
| method.native_code( | frame->junction.self, |
| *this, | frame->name(), frame->numbered_params()); |
| frame->name(), frame->numbered_params()); // execute it | method.native_code( |
| } else { // parser code | *this, |
| if(++anti_endless_execute_recoursion==ANTI_ENDLESS_EXECUTE_RECOURSION) { | frame->name(), frame->numbered_params()); // execute it |
| anti_endless_execute_recoursion=0; // give @exception a chance | } else { // parser code |
| THROW(0, 0, | root=frame; |
| &frame->name(), | // execute it |
| "endless recursion detected"); | recoursion_checked_execute(&frame->name(), *method.parser_code); |
| } | } |
| } catch(...) { | |
| execute(*method.parser_code); // execute it | // record it to stack trace |
| anti_endless_execute_recoursion--; | exception_trace.push((void *)&frame->name()); |
| /*re*/throw; | |
| } | } |
| else | } else |
| THROW(0, 0, | 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"); |
| } | } |
| Value *value=wcontext->result(); | value=&wcontext->result().as_value(); // todo CALL_WRITE & VString removal |
| wcontext=static_cast<WContext *>(POP()); | wcontext=static_cast<WContext *>(POP()); |
| rcontext=POP(); | rcontext=POP(); |
| root=POP(); | root=POP(); |
| self=static_cast<VAliased *>(POP()); | self=static_cast<VAliased *>(POP()); |
| #ifdef DEBUG_STRING_APPENDS_VS_EXPANDS | |
| if(const String *s=value->get_string()) | |
| wcontext_result_size+=s->used_rows()*sizeof(String::Chunk::Row); | |
| #endif | |
| PUSH(value); | PUSH(value); |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), "<-returned"); | debug_printf(pool(), "<-returned"); |
| Line 453 void Request::execute(const Array& ops) | Line 516 void Request::execute(const Array& ops) |
| case OP_NEG: | case OP_NEG: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VDouble(pool(), -operand->as_double()); | value=NEW VDouble(pool(), -operand->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_INV: | case OP_INV: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VDouble(pool(), ~operand->as_int()); | value=NEW VDouble(pool(), ~operand->as_int()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NOT: | case OP_NOT: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VBool(pool(), !operand->as_bool()); | value=NEW VBool(pool(), !operand->as_bool()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_DEF: | case OP_DEF: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VBool(pool(), operand->is_defined()); | value=NEW VBool(pool(), operand->is_defined()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_IN: | case OP_IN: |
| { | { |
| /// @test String::cmp | |
| Value *operand=POP(); | Value *operand=POP(); |
| const char *path=operand->as_string().cstr(); | const char *path=operand->as_string().cstr(); |
| Value *value=NEW VBool(pool(), | value=NEW VBool(pool(), |
| info.uri && strncmp(path, info.uri, strlen(path))==0); | info.uri && strncmp(path, info.uri, strlen(path))==0); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| Line 490 void Request::execute(const Array& ops) | Line 554 void Request::execute(const Array& ops) |
| case OP_FEXISTS: | case OP_FEXISTS: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VBool(pool(), | value=NEW VBool(pool(), |
| file_readable(absolute(operand->as_string()))); | file_readable(absolute(operand->as_string()))); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| Line 498 void Request::execute(const Array& ops) | Line 562 void Request::execute(const Array& ops) |
| case OP_DEXISTS: | case OP_DEXISTS: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VBool(pool(), | value=NEW VBool(pool(), |
| dir_readable(absolute(operand->as_string()))); | dir_readable(absolute(operand->as_string()))); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| Line 507 void Request::execute(const Array& ops) | Line 571 void Request::execute(const Array& ops) |
| // expression ops: binary | // expression ops: binary |
| case OP_SUB: | case OP_SUB: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VDouble(pool(), a->as_double() - b->as_double()); | value=NEW VDouble(pool(), a->as_double() - b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_ADD: | case OP_ADD: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VDouble(pool(), a->as_double() + b->as_double()); | value=NEW VDouble(pool(), a->as_double() + b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_MUL: | case OP_MUL: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VDouble(pool(), a->as_double() * b->as_double()); | value=NEW VDouble(pool(), a->as_double() * b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_DIV: | case OP_DIV: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| double a_double=a->as_double(); | double a_double=a->as_double(); |
| double b_double=b->as_double(); | double b_double=b->as_double(); |
| Line 539 void Request::execute(const Array& ops) | Line 603 void Request::execute(const Array& ops) |
| if(!problem_source->origin().file) | if(!problem_source->origin().file) |
| problem_source=&b->name(); | problem_source=&b->name(); |
| #endif | #endif |
| THROW(0, 0, | throw Exception("number.zerodivision", |
| problem_source, | problem_source, |
| "Division by zero"); | "Division by zero"); |
| } | } |
| Value *value=NEW VDouble(pool(), a_double / b_double); | value=NEW VDouble(pool(), a_double / b_double); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_MOD: | case OP_MOD: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| double a_double=a->as_double(); | double a_double=a->as_double(); |
| double b_double=b->as_double(); | double b_double=b->as_double(); |
| Line 561 void Request::execute(const Array& ops) | Line 625 void Request::execute(const Array& ops) |
| if(!problem_source->origin().file) | if(!problem_source->origin().file) |
| problem_source=&b->name(); | problem_source=&b->name(); |
| #endif | #endif |
| THROW(0, 0, | throw Exception("number.zerodivision", |
| problem_source, | problem_source, |
| "Modulus by zero"); | "Modulus by zero"); |
| } | } |
| Value *value=NEW VDouble(pool(), fmod(a_double, b_double)); | value=NEW VDouble(pool(), fmod(a_double, b_double)); |
| PUSH(value); | |
| break; | |
| } | |
| case OP_INTDIV: | |
| { | |
| b=POP(); a=POP(); | |
| int a_int=a->as_int(); | |
| int b_int=b->as_int(); | |
| if(b_int == 0) { | |
| const String *problem_source=&b->as_string(); | |
| #ifndef NO_STRING_ORIGIN | |
| if(!problem_source->origin().file) | |
| problem_source=&b->name(); | |
| #endif | |
| throw Exception("number.zerodivision", | |
| problem_source, | |
| "Division by zero"); | |
| } | |
| value=NEW VInt(pool(), a_int / b_int); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_BIN_AND: | case OP_BIN_AND: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VDouble(pool(), | value=NEW VDouble(pool(), |
| a->as_int() & | a->as_int() & |
| b->as_int()); | b->as_int()); |
| PUSH(value); | PUSH(value); |
| Line 581 void Request::execute(const Array& ops) | Line 667 void Request::execute(const Array& ops) |
| } | } |
| case OP_BIN_OR: | case OP_BIN_OR: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VDouble(pool(), | value=NEW VDouble(pool(), |
| a->as_int() | | a->as_int() | |
| b->as_int()); | b->as_int()); |
| PUSH(value); | PUSH(value); |
| Line 590 void Request::execute(const Array& ops) | Line 676 void Request::execute(const Array& ops) |
| } | } |
| case OP_BIN_XOR: | case OP_BIN_XOR: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VDouble(pool(), | value=NEW VDouble(pool(), |
| a->as_int() ^ | a->as_int() ^ |
| b->as_int()); | b->as_int()); |
| PUSH(value); | PUSH(value); |
| Line 599 void Request::execute(const Array& ops) | Line 685 void Request::execute(const Array& ops) |
| } | } |
| case OP_LOG_AND: | case OP_LOG_AND: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b_code=POP_CODE(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_bool() && b->as_bool()); | bool result; |
| if(a->as_bool()) { | |
| execute(*b_code); | |
| b=POP(); | |
| result=b->as_bool(); | |
| } else | |
| result=false; | |
| value=NEW VBool(pool(), result); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_LOG_OR: | case OP_LOG_OR: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b_code=POP_CODE(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_bool() || b->as_bool()); | bool result; |
| if(a->as_bool()) | |
| result=true; | |
| else { | |
| execute(*b_code); | |
| b=POP(); | |
| result=b->as_bool(); | |
| } | |
| value=NEW VBool(pool(), result); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_LOG_XOR: | case OP_LOG_XOR: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_bool() ^ b->as_bool()); | value=NEW VBool(pool(), a->as_bool() ^ b->as_bool()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_LT: | case OP_NUM_LT: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_double() < b->as_double()); | value=NEW VBool(pool(), a->as_double() < b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_GT: | case OP_NUM_GT: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_double() > b->as_double()); | value=NEW VBool(pool(), a->as_double() > b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_LE: | case OP_NUM_LE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_double() <= b->as_double()); | value=NEW VBool(pool(), a->as_double() <= b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_GE: | case OP_NUM_GE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_double() >= b->as_double()); | value=NEW VBool(pool(), a->as_double() >= b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_EQ: | case OP_NUM_EQ: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_double() == b->as_double()); | value=NEW VBool(pool(), a->as_double() == b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_NE: | case OP_NUM_NE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_double() != b->as_double()); | value=NEW VBool(pool(), a->as_double() != b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_STR_LT: | case OP_STR_LT: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_string() < b->as_string()); | value=NEW VBool(pool(), a->as_string() < b->as_string()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_STR_GT: | case OP_STR_GT: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_string() > b->as_string()); | value=NEW VBool(pool(), a->as_string() > b->as_string()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_STR_LE: | case OP_STR_LE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_string() <= b->as_string()); | value=NEW VBool(pool(), a->as_string() <= b->as_string()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_STR_GE: | case OP_STR_GE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_string() >= b->as_string()); | value=NEW VBool(pool(), a->as_string() >= b->as_string()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_STR_EQ: | case OP_STR_EQ: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_string() == b->as_string()); | value=NEW VBool(pool(), a->as_string() == b->as_string()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_STR_NE: | case OP_STR_NE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | b=POP(); a=POP(); |
| Value *value=NEW VBool(pool(), a->as_string() != b->as_string()); | value=NEW VBool(pool(), a->as_string() != b->as_string()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_IS: | case OP_IS: |
| { | { |
| Value *b=POP(); Value *a=POP(); | //_asm int 3; |
| Value *value=NEW VBool(pool(), b->as_string() == a->type()); | b=POP(); a=POP(); |
| value=NEW VBool(pool(), b->as_string() == a->type()); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| default: | default: |
| THROW(0,0, | throw Exception(0, |
| 0, | 0, |
| "invalid opcode %d", op.code); | "invalid opcode %d", op.code); |
| } | } |
| } | } |
| } | } |
| Value *Request::get_element() { | Value *Request::get_element(bool can_call_operator) { |
| const String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| Value *value=ncontext->get_element(name); | Value *value=0; |
| if(!value) | if(can_call_operator) |
| if(Method* method=OP.get_method(name)) { // maybe 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 | // as if that method were in self and we have normal dynamic method here |
| Junction& junction=*NEW Junction(pool(), | Junction& junction=*NEW Junction(pool(), |
| *self, self->get_class(), method, 0,0,0,0); | *root, self->get_class(), method, 0,0,0,0); |
| value=NEW VJunction(junction); | value=NEW VJunction(junction); |
| } | } |
| if(value) | if(!value) |
| value=&process(*value, &name); // process possible code-junction | value=ncontext->get_element(name); |
| else { | if(value) { |
| value=&process_to_value(*value); // process possible code-junction | |
| value->update_name(name); | |
| } else { | |
| value=NEW VVoid(pool()); | value=NEW VVoid(pool()); |
| value->set_name(name); | value->set_name(name); |
| } | } |
| Line 747 Value *Request::get_element() { | Line 852 Value *Request::get_element() { |
| they want any result[string|object] | they want any result[string|object] |
| nothing goes to wcontext. | nothing goes to wcontext. |
| used in @c (expression) params evaluation | used in @c (expression) params evaluation |
| using the fact it's either string_ or value_ result requested to speed up checkes | |
| */ | */ |
| Value& Request::process(Value& value, const String *name, bool intercept_string) { | StringOrValue Request::process(Value& input_value, bool intercept_string) { |
| Value *result; | StringOrValue result; |
| Junction *junction=value.get_junction(); | Junction *junction=input_value.get_junction(); |
| if(junction && junction->code) { // is it a code-junction? | if(junction && junction->code) { // is it a code-junction? |
| // process it | // process it |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| Line 761 Value& Request::process(Value& value, co | Line 868 Value& Request::process(Value& value, co |
| PUSH(rcontext); | PUSH(rcontext); |
| PUSH(wcontext); | PUSH(wcontext); |
| WContext *frame; | self=&junction->self; |
| root=junction->root; | |
| rcontext=junction->rcontext; | |
| // for expression method params | // for expression method params |
| // wcontext is set 0 | // wcontext is set 0 |
| // using the fact in decision "which wwrapper to use" | // using the fact in decision "which wwrapper to use" |
| Line 769 Value& Request::process(Value& value, co | Line 879 Value& Request::process(Value& value, co |
| 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 |
| frame=NEW VCodeFrame(pool(), *junction->wcontext); | VCodeFrame local(pool(), *junction->wcontext); |
| } else { | wcontext=&local; |
| // plain wwrapper | |
| frame=NEW WWrapper(pool(), 0/*empty*/, false/*not constructing*/); | // execute it |
| } | recoursion_checked_execute(0/*result_name*/, *junction->code); |
| //frame->set_name(value.name()); | |
| wcontext=frame; | |
| self=&junction->self; | |
| root=junction->root; | |
| rcontext=junction->rcontext; | |
| execute(*junction->code); | |
| if(using_code_frame) { | |
| // CodeFrame soul: | // CodeFrame soul: |
| // string writes were intercepted | // string writes were intercepted |
| // returning them as the result of getting code-junction | // returning them as the result of getting code-junction |
| result=NEW VString(*frame->get_string()); | result.set_string(*wcontext->get_string()); |
| } else | } else { |
| result=frame->result(); | // plain wwrapper |
| WWrapper local(pool(), 0/*empty*/); | |
| wcontext=&local; | |
| // execute it | |
| recoursion_checked_execute(0/*result_name*/, *junction->code); | |
| result=wcontext->result(); | |
| } | |
| wcontext=static_cast<WContext *>(POP()); | wcontext=static_cast<WContext *>(POP()); |
| rcontext=POP(); | rcontext=POP(); |
| Line 797 Value& Request::process(Value& value, co | Line 908 Value& Request::process(Value& value, co |
| #ifdef DEBUG_EXECUTE | #ifdef DEBUG_EXECUTE |
| debug_printf(pool(), "<-ja returned"); | debug_printf(pool(), "<-ja returned"); |
| #endif | #endif |
| } else | } else { |
| result=&value; | result.set_value(input_value); |
| } | |
| if(name) | return result; |
| result->set_name(*name); | |
| return *result; | |
| } | } |
| const String *Request::execute_method(Value& aself, const Method& method, | const String *Request::execute_method(Value& aself, const Method& method, |
| bool return_cstr) { | bool return_cstr) { |
| PUSH(self); | PUSH(self); |
| PUSH(root); | PUSH(root); |
| PUSH(rcontext); | PUSH(rcontext); |
| Line 814 const String *Request::execute_method(Va | Line 923 const String *Request::execute_method(Va |
| // initialize contexts | // initialize contexts |
| root=rcontext=self=&aself; | root=rcontext=self=&aself; |
| wcontext=NEW WWrapper(pool(), &aself, false /*not constructing*/); | WWrapper local(pool(), &aself); |
| wcontext=&local; | |
| // execute! | // execute! |
| execute(*method.parser_code); | execute(*method.parser_code); |
| // result | // result |
| const String *result; | const String *result=return_cstr ? &wcontext->as_string() : 0; |
| if(return_cstr) | |
| result=&wcontext->as_string(); | wcontext=static_cast<WContext *>(POP()); |
| else | rcontext=POP(); |
| result=0; // ignore result | root=POP(); |
| self=static_cast<VAliased *>(POP()); | |
| // return | |
| return result; | |
| } | |
| const String& Request::execute_method(VMethodFrame& amethodFrame, const Method& method) { | |
| PUSH(self); | |
| PUSH(root); | |
| PUSH(rcontext); | |
| PUSH(wcontext); | |
| // initialize contexts | |
| root=rcontext=self=&amethodFrame; | |
| wcontext=&amethodFrame; | |
| // execute! | |
| execute(*method.parser_code); | |
| // result | |
| const String& result=wcontext->as_string(); | |
| wcontext=static_cast<WContext *>(POP()); | wcontext=static_cast<WContext *>(POP()); |
| rcontext=POP(); | rcontext=POP(); |
| Line 836 const String *Request::execute_method(Va | Line 967 const String *Request::execute_method(Va |
| } | } |
| const String *Request::execute_virtual_method(Value& aself, | const String *Request::execute_virtual_method(Value& aself, |
| const String& method_name, | const String& method_name) { |
| bool return_cstr) { | |
| if(Value *value=aself.get_element(method_name)) | if(Value *value=aself.get_element(method_name)) |
| 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, return_cstr); | return execute_method(aself, *method, true /*return_cstr*/); |
| return 0; | return 0; |
| } | } |
| const String *Request::execute_nonvirtual_method(VStateless_class& aclass, | const String *Request::execute_nonvirtual_method(VStateless_class& aclass, |
| const String& method_name, | const String& method_name, |
| bool return_cstr) { | bool return_cstr) { |
| if(const Method *method=aclass.get_method(method_name)) | if(const Method *method=aclass.get_method(method_name)) |
| return execute_method(aclass, *method, return_cstr); | return execute_method(aclass, *method, return_cstr); |