--- parser3/src/main/execute.C 2001/02/23 14:18:27 1.28 +++ parser3/src/main/execute.C 2001/03/06 12:57:30 1.50 @@ -1,5 +1,5 @@ /* - $Id: execute.C,v 1.28 2001/02/23 14:18:27 paf Exp $ + $Id: execute.C,v 1.50 2001/03/06 12:57:30 paf Exp $ */ #include "pa_array.h" @@ -8,17 +8,23 @@ #include "pa_vstring.h" #include "pa_vhash.h" #include "pa_vunknown.h" -#include "pa_vframe.h" +#include "pa_vcframe.h" +#include "pa_vmframe.h" +#include "pa_vobject.h" +#include "pa_vdouble.h" #include #define PUSH(value) stack.push(value) #define POP() static_cast(stack.pop()) -#define POP_SR() static_cast(stack.pop())->as_string() +#define POP_NAME() static_cast(stack.pop())->as_string() char *opcode_name[]={ - "STRING", "CODE_ARRAY", + // literals + "STRING", "CODE", "CLASS", + + // actions "WITH_ROOT", "WITH_SELF", "WITH_READ", "WITH_WRITE", "CONSTRUCT", "EXPRESSION_EVAL", "MODIFY_EVAL", @@ -26,102 +32,134 @@ char *opcode_name[]={ "GET_ELEMENT", "GET_ELEMENT__WRITE", "CREATE_EWPOOL", "REDUCE_EWPOOL", "CREATE_RWPOOL", "REDUCE_RWPOOL", + "CREATE_SWPOOL", "REDUCE_SWPOOL", "GET_METHOD_FRAME", - "CREATE_JUNCTION", "STORE_PARAM", "CALL" + + // expression ops: unary + "NEG", "INV", "NOT", "DEF", "IN", "FEXISTS", + // expression ops: binary + "SUB", "ADD", "MUL", "DIV", "MOD", + "BIN_AND", "BIN_OR", + "LOG_AND", "LOG_OR", + "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE", + "STR_LT", "STR_GT", "STR_LE", "STR_GE", "STR_EQ", "STR_NE", + "XOR" }; void dump(int level, const Array& ops) { if(0){ int size=ops.size(); - //printf("size=%d\n", size); + //fprintf(stderr, "size=%d\n", size); for(int i=0; i(ops.quick_get(++i)); - printf(" \"%s\"", vstring->get_string()->cstr()); + fprintf(stderr, " \"%s\"", vstring->get_string()->cstr()); } - printf("\n"); + if(op.code==OP_CLASS) { + VClass *vclass=static_cast(ops.quick_get(++i)); + fprintf(stderr, " \"%s\"", vclass->name().cstr()); + } + fprintf(stderr, "\n"); - if(op.code==OP_CODE_ARRAY) { + if(op.code==OP_CODE) { const Array *local_ops=reinterpret_cast(ops.quick_get(++i)); dump(level+1, *local_ops); } } } -void Request::execute(Array& ops) { - if(0) { - puts("---------------------------"); +void Request::execute(const Array& ops) { + if(1) { + fputs("source----------------------------", stderr); dump(0, ops); - puts("---------------------------"); + fputs("execution-------------------------", stderr); } int size=ops.size(); - //printf("size=%d\n", size); + //fprintf(stderr, "size=%d\n", size); for(int i=0; i(ops.quick_get(++i)); - //dump(level+1, *local_ops); - } - switch(op.code) { - case OP_WITH_WRITE: + // param in next instruction + case OP_STRING: { - PUSH(wcontext); + VString *vstring=static_cast(ops.quick_get(++i)); + fprintf(stderr, " \"%s\"", vstring->get_string()->cstr()); + PUSH(vstring); break; } - case OP_WITH_READ: + case OP_CODE: { - PUSH(rcontext); + const Array *local_ops=reinterpret_cast(ops.quick_get(++i)); + fprintf(stderr, " (%d)\n", local_ops->size()); + dump(1, *local_ops); + Junction& j=*NEW Junction(pool(), + *self, 0, 0, + root,rcontext,wcontext,local_ops); + + Value *value=NEW VJunction(j); + PUSH(value); break; } - case OP_WITH_ROOT: + case OP_CLASS: { - PUSH(root); + VClass *vclass=static_cast(ops.quick_get(++i)); + fprintf(stderr, " \"%s\"", vclass->name().cstr()); + PUSH(vclass); break; } + + // OP_WITH case OP_WITH_SELF: { PUSH(self); break; } - - case OP_STRING: + case OP_WITH_ROOT: { - VString *vstring=static_cast(ops.quick_get(++i)); - printf(" \"%s\"", vstring->get_string()->cstr()); - PUSH(vstring); + PUSH(root); + break; + } + case OP_WITH_READ: + { + PUSH(rcontext); + break; + } + case OP_WITH_WRITE: + { + PUSH(wcontext); break; } + // ... case OP_CONSTRUCT: { Value *value=POP(); - String& name=POP_SR(); + String& name=POP_NAME(); Value *ncontext=POP(); value->set_name(name); ncontext->put_element(name, value); break; } - + // TODO: OP_EXPRESSION_EVAL, OP_MODIFY_EVAL, case OP_WRITE: { Value *value=POP(); @@ -143,15 +181,16 @@ void Request::execute(Array& ops) { break; } + case OP_CREATE_EWPOOL: { PUSH(wcontext); - wcontext=NEW WContext(pool(), 0 /* empty */); + wcontext=NEW WWrapper(pool(), 0 /* empty */, true /* constructing */); break; } case OP_REDUCE_EWPOOL: { - Value *value=wcontext->value(); + Value *value=wcontext->result(); wcontext=static_cast(POP()); PUSH(value); break; @@ -163,60 +202,158 @@ void Request::execute(Array& ops) { PUSH(rcontext); rcontext=ncontext; PUSH(wcontext); - wcontext=NEW WContext(pool(), ncontext); + wcontext=NEW WWrapper(pool(), ncontext, false /* not constructing */); break; } case OP_REDUCE_RWPOOL: { String *string=wcontext->get_string(); - Value *value=NEW VString(string); + Value *value=string?NEW VString(*string):NEW VString(pool()); wcontext=static_cast(POP()); rcontext=POP(); PUSH(value); break; } + case OP_CREATE_SWPOOL: + { + PUSH(wcontext); + wcontext=NEW WWrapper(pool(), 0 /* empty */, false /* not constructing */); + break; + } + case OP_REDUCE_SWPOOL: + { + // from "$a $b" part of expression taking only string value, + // ignoring any other content of wcontext + String *string=wcontext->get_string(); + Value *value=string?NEW VString(*string):NEW VString(pool()); + wcontext=static_cast(POP()); + PUSH(value); + break; + } + + // CALL case OP_GET_METHOD_FRAME: { - String& name=POP_SR(); // ýòî áûâàåò junction, íå name - Value *ncontext=static_cast(stack[0]); + Value *value=POP(); // [self/class?;params;local;code/native_code](name) - Method *method=ncontext->get_method(name); - if(!method) + Junction *junction=value->get_junction(); + if(!junction) THROW(0,0, - &name, - "method not found in %s", ncontext->name()->cstr()); + &value->name(), + "type is '%s', can not call it (must be method or junction)", + value->type()); //unless(method) method=operators.get_method[...;code/native_code](name) - VFrame *frame=NEW VFrame(pool(), *method); + VMethodFrame *frame=NEW VMethodFrame(pool(), *junction); PUSH(frame); break; } case OP_STORE_PARAM: { Value *value=POP(); - VFrame *frame=static_cast(stack[0]); + VMethodFrame *frame=static_cast(stack[0]); frame->store_param(value); break; } + case OP_CALL: + { + fprintf(stderr, "->\n"); + VMethodFrame *frame=static_cast(POP()); + frame->fill_unspecified_params(); + PUSH(self); + PUSH(root); + PUSH(rcontext); + PUSH(wcontext); + + VClass *called_class=frame->junction.self.get_class(); + // constructing? + if(wcontext->constructing()) { // yes + // constructor call: $some(^class:method(..)) + frame->write(self=NEW VObject(pool(), *called_class)); + } else { // no + // context is object or class & is it my class or my parent's class? + VClass *read_class=rcontext->get_class(); + if(read_class && read_class->is_or_derived_from(*called_class)) // yes + self=rcontext; // class dynamic call + else // no + self=&frame->junction.self; // static or simple dynamic call + } + frame->set_self(*self); + root=rcontext=wcontext=frame; + { + // take object or class from any wrappers + VAliased *aliased=self->get_aliased(); + // substitute class alias to the class they are called AS + Temp_alias temp_alias(*aliased, *frame->junction.vclass); + execute(frame->junction.method->code); + } + Value *value=wcontext->result(); + + wcontext=static_cast(POP()); + rcontext=POP(); + root=POP(); + self=static_cast(POP()); + wcontext->write(value); + fprintf(stderr, "<-returned"); + break; + } + + case OP_MUL: + { + Value *b=POP(); + Value *a=POP(); + Value *value=NEW VDouble(pool(), + a->get_double() * + b->get_double()); + PUSH(value); + break; + } default: - printf("\tTODO"); + fprintf(stderr, "\tTODO"); break; } - printf("\n"); + fprintf(stderr, "\n"); } } Value *Request::get_element() { - String& name=POP_SR(); + String& name=POP_NAME(); Value *ncontext=POP(); - Value *value=ncontext->get_element(name); // name áûâàåò method, òîãäà âûäà¸ò new junction(ÀÂÒÎÂÛ×ÈÑËßÒÜ=false, root,self,rcontext,wcontext,code) - // name áûâàåò èìÿ junction, òîãäà èëè îñòàâëÿåò â ïîêîå, èëè âû÷èñëÿåò â çàâèñèìîñòè îò ôëàãà ÀÂÒÎÂÛ×ÈÑËßÒÜ + Value *value=ncontext->get_element(name); - if(!value) { + if(value) { + Junction *junction=value->get_junction(); + if(junction && junction->code) { // is it a code-junction? + // autocalc it + fprintf(stderr, "ja->\n"); + PUSH(self); + PUSH(root); + PUSH(rcontext); + PUSH(wcontext); + + // almost plain wwrapper about junction wcontext, + // BUT intercepts string writes + VCodeFrame frame(pool(), *junction->wcontext); wcontext=&frame; + self=&junction->self; + root=junction->root; + rcontext=junction->rcontext; + execute(*junction->code); + // CodeFrame soul: + // string writes were intercepted + // returning them as the result of getting code-junction + value=NEW VString(*frame.get_string()); + + wcontext=static_cast(POP()); + rcontext=POP(); + root=POP(); + self=static_cast(POP()); + fprintf(stderr, "<-ja returned"); + } + } else { value=NEW VUnknown(pool()); value->set_name(name); } return value; -} \ No newline at end of file +}