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| version 1.78, 2001/03/08 17:14:53 | version 1.98, 2001/03/12 22:21:02 |
|---|---|
| Line 1 | Line 1 |
| /* | /* |
| $Id$ | Parser |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | |
| */ | */ |
| #include "pa_array.h" | #include "pa_array.h" |
| Line 13 | Line 17 |
| #include "pa_vobject.h" | #include "pa_vobject.h" |
| #include "pa_vdouble.h" | #include "pa_vdouble.h" |
| #include "pa_vbool.h" | #include "pa_vbool.h" |
| #include "pa_vtable.h" | |
| #include <stdio.h> | #include <stdio.h> |
| Line 28 char *opcode_name[]={ | Line 33 char *opcode_name[]={ |
| // actions | // actions |
| "WITH_SELF", "WITH_ROOT", "WITH_READ", "WITH_WRITE", | "WITH_SELF", "WITH_ROOT", "WITH_READ", "WITH_WRITE", |
| "GET_CLASS", | "GET_CLASS", |
| "CONSTRUCT", | "CONSTRUCT_VALUE", "CONSTRUCT_DOUBLE", |
| "WRITE", | "WRITE", "STRING__WRITE", |
| "GET_ELEMENT", "GET_ELEMENT__WRITE", | "GET_ELEMENT", "GET_ELEMENT__WRITE", |
| "CREATE_EWPOOL", "REDUCE_EWPOOL", | "CREATE_EWPOOL", "REDUCE_EWPOOL", |
| "CREATE_RWPOOL", "REDUCE_RWPOOL", | "CREATE_RWPOOL", "REDUCE_RWPOOL", |
| Line 66 void dump(int level, const Array& ops) { | Line 71 void dump(int level, const Array& ops) { |
| op.cast=ops.quick_get(i); | op.cast=ops.quick_get(i); |
| fprintf(stderr, "%*s%s", level*4, "", opcode_name[op.code]); | fprintf(stderr, "%*s%s", level*4, "", opcode_name[op.code]); |
| if(op.code==OP_VALUE) { | if(op.code==OP_VALUE || op.code==OP_STRING__WRITE) { |
| Value *value=static_cast<Value *>(ops.quick_get(++i)); | Value *value=static_cast<Value *>(ops.quick_get(++i)); |
| fprintf(stderr, " \"%s\" %s", value->get_string()->cstr(), value->type()); | fprintf(stderr, " \"%s\" %s", value->get_string()->cstr(), value->type()); |
| } | } |
| Line 92 void Request::execute(const Array& ops) | Line 97 void Request::execute(const Array& ops) |
| for(int i=0; i<size; i++) { | for(int i=0; i<size; i++) { |
| Operation op; | Operation op; |
| op.cast=ops.quick_get(i); | op.cast=ops.quick_get(i); |
| fprintf(stderr, "%d:%s", stack.top_index(), opcode_name[op.code]); fflush(stderr); | fprintf(stderr, "%d:%s", stack.top_index()+1, opcode_name[op.code]); fflush(stderr); |
| switch(op.code) { | switch(op.code) { |
| // param in next instruction | // param in next instruction |
| Line 116 void Request::execute(const Array& ops) | Line 121 void Request::execute(const Array& ops) |
| root, frame, frame, local_ops); | root, frame, frame, local_ops); |
| Value *value=NEW VJunction(j); | Value *value=NEW VJunction(j); |
| value->set_name(frame->name()); | |
| // store param | // store param |
| frame->store_param(value); | frame->store_param(frame->name(), value); |
| break; | break; |
| } | } |
| case OP_GET_CLASS: | case OP_GET_CLASS: |
| { | { |
| String& name=POP_NAME(); | // maybe the do ^class:method[] call, remember the fact |
| wcontext->set_somebody_entered_some_class(); | |
| const String& name=POP_NAME(); | |
| VClass *vclass=static_cast<VClass *>(classes().get(name)); | VClass *vclass=static_cast<VClass *>(classes().get(name)); |
| if(!vclass) | if(!vclass) |
| THROW(0,0, | THROW(0,0, |
| Line 158 void Request::execute(const Array& ops) | Line 165 void Request::execute(const Array& ops) |
| } | } |
| // OTHER ACTIONS BUT WITHs | // OTHER ACTIONS BUT WITHs |
| case OP_CONSTRUCT: | case OP_CONSTRUCT_VALUE: |
| { | { |
| Value *value=POP(); | Value *value=POP(); |
| String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| value->set_name(name); | |
| ncontext->put_element(name, value); | ncontext->put_element(name, value); |
| value->set_name(name); | |
| break; | |
| } | |
| case OP_CONSTRUCT_EXPR: | |
| { | |
| Value *value=POP(); | |
| const String& name=POP_NAME(); | |
| Value *ncontext=POP(); | |
| ncontext->put_element(name, value->get_expr_result()); | |
| value->set_name(name); | |
| break; | break; |
| } | } |
| case OP_WRITE: | case OP_WRITE: |
| { | { |
| Value *value=POP(); | Value *value=POP(); |
| wcontext->write(*value); | write_assign_lang(*value); |
| break; | |
| } | |
| case OP_STRING__WRITE: | |
| { | |
| VString *vstring=static_cast<VString *>(ops.quick_get(++i)); | |
| fprintf(stderr, " \"%s\"", vstring->value().cstr()); | |
| write(vstring->value()); | |
| break; | break; |
| } | } |
| Line 184 void Request::execute(const Array& ops) | Line 207 void Request::execute(const Array& ops) |
| case OP_GET_ELEMENT__WRITE: | case OP_GET_ELEMENT__WRITE: |
| { | { |
| Value *value=get_element(); | Value *value=get_element(); |
| wcontext->write(*value); | write_assign_lang(*value); |
| break; | break; |
| } | } |
| Line 214 void Request::execute(const Array& ops) | Line 237 void Request::execute(const Array& ops) |
| } | } |
| case OP_REDUCE_RWPOOL: | case OP_REDUCE_RWPOOL: |
| { | { |
| String *string=wcontext->get_string(); | const String *string=wcontext->get_string(); |
| Value *value=string?NEW VString(*string):NEW VString(pool()); | Value *value; |
| if(string) | |
| value=NEW VString(*string); | |
| else | |
| value=NEW VUnknown(pool()); | |
| wcontext=static_cast<WContext *>(POP()); | wcontext=static_cast<WContext *>(POP()); |
| rcontext=POP(); | rcontext=POP(); |
| PUSH(value); | PUSH(value); |
| Line 231 void Request::execute(const Array& ops) | Line 258 void Request::execute(const Array& 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 |
| String *string=wcontext->get_string(); | const String *string=wcontext->get_string(); |
| Value *value=string?NEW VString(*string):NEW VString(pool()); | Value *value; |
| if(string) | |
| value=NEW VString(*string); | |
| else | |
| NEW VUnknown(pool()); | |
| wcontext=static_cast<WContext *>(POP()); | wcontext=static_cast<WContext *>(POP()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| Line 247 void Request::execute(const Array& ops) | Line 278 void Request::execute(const Array& ops) |
| if(!junction) | if(!junction) |
| THROW(0,0, | THROW(0,0, |
| &value->name(), | &value->name(), |
| "type is '%s', can not call it (must be method or junction)", | "(%s) uncallable, must be method or junction", |
| value->type()); | value->type()); |
| VMethodFrame *frame=NEW VMethodFrame(pool(), *junction); | VMethodFrame *frame=NEW VMethodFrame(pool(), *junction); |
| frame->set_name(junction->self.name()); | //frame->set_name(junction->self.name()); |
| frame->set_name(value->name()); | |
| PUSH(frame); | PUSH(frame); |
| break; | break; |
| } | } |
| Line 259 void Request::execute(const Array& ops) | Line 291 void Request::execute(const Array& ops) |
| { | { |
| Value *value=POP(); | Value *value=POP(); |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); | VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); |
| frame->store_param(value); | frame->store_param(frame->name(), value); |
| break; | break; |
| } | } |
| Line 279 void Request::execute(const Array& ops) | Line 311 void Request::execute(const Array& ops) |
| if(read_class && read_class->is_or_derived_from(*called_class)) // yes | if(read_class && read_class->is_or_derived_from(*called_class)) // yes |
| self=rcontext; // class dynamic call | self=rcontext; // class dynamic call |
| else // no, not me or relative of mine (total stranger) | else // no, not me or relative of mine (total stranger) |
| if(wcontext->constructing()) { // constructing? | if( |
| // yes, constructor call: $some(^class:method(..)) | wcontext->constructing() && // constructing? |
| self=NEW VObject(*called_class); | wcontext->somebody_entered_some_class()) { // ^class:method[..]? |
| frame->write(*self); | // yes, this is a constructor call |
| if(called_class->name()==TABLE_CLASS_NAME) | |
| self=NEW VTable(pool()); | |
| else | |
| self=NEW VObject(pool(), *called_class); | |
| frame->write(*self, | |
| String::Untaint_lang::NO // not used, always an object, not string | |
| ); | |
| } else | } else |
| self=&frame->junction.self; // no, static or simple dynamic call | self=&frame->junction.self; // no, static or simple dynamic call |
| Line 295 void Request::execute(const Array& ops) | Line 334 void Request::execute(const Array& ops) |
| Temp_alias temp_alias(*aliased, *frame->junction.vclass); | Temp_alias temp_alias(*aliased, *frame->junction.vclass); |
| Method& method=*frame->junction.method; | Method& method=*frame->junction.method; |
| if(method.native_code) // native code? | if(method.native_code) { // native code? |
| (*method.native_code)(*this, frame->numbered_params()); // execute it | method.check_actual_numbered_params( |
| else // parser code | frame->name(), frame->numbered_params()); |
| (*method.native_code)(*this, | |
| frame->name(), frame->numbered_params()); // execute it | |
| } else // parser code | |
| execute(*method.parser_code); // execute it | execute(*method.parser_code); // execute it |
| } | } |
| Value *value=wcontext->result(); | Value *value=wcontext->result(); |
| Line 316 void Request::execute(const Array& ops) | Line 358 void Request::execute(const Array& ops) |
| case OP_NEG: | case OP_NEG: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), -operand->get_double()); |
| -operand->get_double()); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_INV: | case OP_INV: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), ~(int)operand->get_double()); |
| ~static_cast<int>(operand->get_double())); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 362 void Request::execute(const Array& ops) | Line 402 void Request::execute(const Array& ops) |
| case OP_SUB: | case OP_SUB: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), a->get_double() - b->get_double()); |
| a->get_double() - b->get_double()); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_ADD: | case OP_ADD: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), a->get_double() + b->get_double()); |
| a->get_double() + b->get_double()); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_MUL: | case OP_MUL: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), a->get_double() * b->get_double()); |
| a->get_double() * b->get_double()); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_DIV: | case OP_DIV: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), a->get_double() / b->get_double()); |
| a->get_double() / b->get_double()); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 395 void Request::execute(const Array& ops) | Line 431 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| static_cast<int>(a->get_double()) % | (int)a->get_double() % |
| static_cast<int>(b->get_double())); | (int)b->get_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 404 void Request::execute(const Array& ops) | Line 440 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| static_cast<int>(a->get_double()) & | (int)a->get_double() & |
| static_cast<int>(b->get_double())); | (int)b->get_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 413 void Request::execute(const Array& ops) | Line 449 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| static_cast<int>(a->get_double()) | | (int)a->get_double() | |
| static_cast<int>(b->get_double())); | (int)b->get_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 422 void Request::execute(const Array& ops) | Line 458 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| static_cast<int>(a->get_double()) ^ | (int)a->get_double() ^ |
| static_cast<int>(b->get_double())); | (int)b->get_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 543 void Request::execute(const Array& ops) | Line 579 void Request::execute(const Array& ops) |
| } | } |
| Value *Request::get_element() { | Value *Request::get_element() { |
| String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| Value *value=ncontext->get_element(name); | Value *value=ncontext->get_element(name); |
| if(value) | if(value) |
| value=&autocalc(*value); // autocalc possible code-junction | value=&process(*value, &name); // process possible code-junction |
| else { | else { |
| value=NEW VUnknown(pool()); | value=NEW VUnknown(pool()); |
| value->set_name(name); | value->set_name(name); |
| Line 557 Value *Request::get_element() { | Line 593 Value *Request::get_element() { |
| return value; | return value; |
| } | } |
| Value& Request::autocalc(Value& value, bool make_string) { | Value& Request::process(Value& value, const String *name, bool intercept_string) { |
| // intercept_string: | |
| // true: | |
| // they want result=string value, | |
| // possible object result goes to wcontext | |
| // false: | |
| // they want any result[string|object] | |
| // nothing goes to wcontext. | |
| // used in (expression) params evaluation | |
| Value *result; | |
| Junction *junction=value.get_junction(); | Junction *junction=value.get_junction(); |
| if(junction && junction->code) { // is it a code-junction? | if(junction && junction->code) { // is it a code-junction? |
| // autocalc it | // process it |
| fprintf(stderr, "ja->\n"); | fprintf(stderr, "ja->\n"); |
| PUSH(self); | PUSH(self); |
| PUSH(root); | PUSH(root); |
| Line 568 Value& Request::autocalc(Value& value, b | Line 614 Value& Request::autocalc(Value& value, b |
| PUSH(wcontext); | PUSH(wcontext); |
| WContext *frame; | WContext *frame; |
| if(make_string) { | if(intercept_string) { |
| // 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); | frame=NEW VCodeFrame(pool(), *junction->wcontext); |
| Line 582 Value& Request::autocalc(Value& value, b | Line 628 Value& Request::autocalc(Value& value, b |
| root=junction->root; | root=junction->root; |
| rcontext=junction->rcontext; | rcontext=junction->rcontext; |
| execute(*junction->code); | execute(*junction->code); |
| Value *result; | if(intercept_string) { |
| if(make_string) { | |
| // 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 |
| Line 597 Value& Request::autocalc(Value& value, b | Line 642 Value& Request::autocalc(Value& value, b |
| self=static_cast<VAliased *>(POP()); | self=static_cast<VAliased *>(POP()); |
| fprintf(stderr, "<-ja returned"); | fprintf(stderr, "<-ja returned"); |
| return *result; | |
| } else | } else |
| return value; | result=&value; |
| if(name) | |
| result->set_name(*name); | |
| return *result; | |
| } | } |
| void Request::write(Value& avalue) { | |
| wcontext->write(avalue); | |
| } | |
| char *Request::execute_static_method(VClass& vclass, String& method_name, bool return_cstr) { | |
| if(const Method *method=vclass.get_method(method_name)) { | |
| PUSH(self); | |
| PUSH(root); | |
| PUSH(rcontext); | |
| PUSH(wcontext); | |
| // initialize contexts | |
| root=rcontext=self=&vclass; | |
| wcontext=NEW WWrapper(pool(), &vclass, false /* not constructing */); | |
| // execute! | |
| execute(*method->parser_code); | |
| // result | |
| char *result; | |
| if(return_cstr) | |
| result=wcontext->get_string()->cstr(); // chars | |
| else | |
| result=0; // ignore result | |
| wcontext=static_cast<WContext *>(POP()); | |
| rcontext=POP(); | |
| root=POP(); | |
| self=static_cast<VAliased *>(POP()); | |
| // return | |
| return result; | |
| } | |
| return 0; | |
| } |