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| version 1.24, 2001/02/23 10:17:29 | version 1.53, 2001/03/06 15:02:48 |
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| Line 8 | Line 8 |
| #include "pa_vstring.h" | #include "pa_vstring.h" |
| #include "pa_vhash.h" | #include "pa_vhash.h" |
| #include "pa_vunknown.h" | #include "pa_vunknown.h" |
| #include "pa_vcframe.h" | |
| #include "pa_vmframe.h" | |
| #include "pa_vobject.h" | |
| #include "pa_vdouble.h" | |
| #include <stdio.h> | #include <stdio.h> |
| #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() | |
| char *opcode_name[]={ | char *opcode_name[]={ |
| "STRING", "CODE_ARRAY", | // literals |
| "WITH_ROOT", "WITH_SELF", "WITH_READ", "WITH_WRITE", | "VALUE", "CODE", "CLASS", |
| // actions | |
| "WITH_SELF", "WITH_ROOT", "WITH_READ", "WITH_WRITE", | |
| "CONSTRUCT", | "CONSTRUCT", |
| "EXPRESSION_EVAL", "MODIFY_EVAL", | |
| "WRITE", | "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", |
| "CREATE_SWPOOL", "REDUCE_SWPOOL", | |
| "GET_METHOD_FRAME", | "GET_METHOD_FRAME", |
| "CREATE_JUNCTION", | |
| "STORE_PARAM", | "STORE_PARAM", |
| "CALL" | "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) { | void dump(int level, const Array& ops) { |
| if(0){ | if(0){ |
| int size=ops.size(); | int size=ops.size(); |
| printf("size=%d\n", size); | //fprintf(stderr, "size=%d\n", size); |
| 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); |
| printf("%8X\n", op.cast); | fprintf(stderr, "%8X\n", op.cast); |
| } | } |
| } | } |
| int size=ops.size(); | int size=ops.size(); |
| printf("size=%d\n", size); | //fprintf(stderr, "size=%d\n", size); |
| 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); |
| printf("%*s%s", level*4, "", opcode_name[op.code]); | fprintf(stderr, "%*s%s", level*4, "", opcode_name[op.code]); |
| if(op.code==OP_STRING) { | if(op.code==OP_VALUE) { |
| VString *vstring=static_cast<VString *>(ops.quick_get(++i)); | Value *value=static_cast<Value *>(ops.quick_get(++i)); |
| printf(" \"%s\"", vstring->get_string()->cstr()); | fprintf(stderr, " \"%s\" %s", value->get_string()->cstr(), value->type()); |
| } | |
| if(op.code==OP_CLASS) { | |
| VClass *vclass=static_cast<VClass *>(ops.quick_get(++i)); | |
| fprintf(stderr, " \"%s\"", vclass->name().cstr()); | |
| } | } |
| printf("\n"); | fprintf(stderr, "\n"); |
| if(op.code==OP_CODE_ARRAY) { | if(op.code==OP_CODE) { |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); | const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); |
| dump(level+1, *local_ops); | dump(level+1, *local_ops); |
| } | } |
| } | } |
| } | } |
| void Request::execute(Array& ops) { | void Request::execute(const Array& ops) { |
| if(0) { | if(1) { |
| puts("---------------------------"); | fputs("source----------------------------\n", stderr); |
| dump(0, ops); | dump(0, ops); |
| puts("---------------------------"); | fputs("execution-------------------------\n", stderr); |
| } | } |
| int size=ops.size(); | int size=ops.size(); |
| printf("size=%d\n", size); | //fprintf(stderr, "size=%d\n", size); |
| 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); |
| printf("%d:%s", stack.top(), opcode_name[op.code]); | fprintf(stderr, "%d:%s", stack.top(), opcode_name[op.code]); |
| if(op.code==OP_CODE_ARRAY) { | |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); | |
| //dump(level+1, *local_ops); | |
| } | |
| switch(op.code) { | switch(op.code) { |
| case OP_WITH_WRITE: | // param in next instruction |
| case OP_VALUE: | |
| { | { |
| PUSH(wcontext); | Value *value=static_cast<Value *>(ops.quick_get(++i)); |
| fprintf(stderr, " \"%s\" %s", value->get_string()->cstr(), value->type()); | |
| PUSH(value); | |
| break; | break; |
| } | } |
| case OP_WITH_READ: | case OP_CODE: |
| { | { |
| PUSH(rcontext); | const Array *local_ops=reinterpret_cast<const Array *>(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; | break; |
| } | } |
| case OP_WITH_ROOT: | case OP_CLASS: |
| { | { |
| PUSH(root); | VClass *vclass=static_cast<VClass *>(ops.quick_get(++i)); |
| fprintf(stderr, " \"%s\"", vclass->name().cstr()); | |
| PUSH(vclass); | |
| break; | break; |
| } | } |
| // OP_WITH | |
| case OP_WITH_SELF: | case OP_WITH_SELF: |
| { | { |
| PUSH(self); | PUSH(self); |
| break; | break; |
| } | } |
| case OP_WITH_ROOT: | |
| case OP_STRING: | |
| { | { |
| VString *vstring=static_cast<VString *>(ops.quick_get(++i)); | PUSH(root); |
| printf(" \"%s\"", vstring->get_string()->cstr()); | break; |
| PUSH(vstring); | } |
| case OP_WITH_READ: | |
| { | |
| PUSH(rcontext); | |
| break; | |
| } | |
| case OP_WITH_WRITE: | |
| { | |
| PUSH(wcontext); | |
| break; | break; |
| } | } |
| // OTHER ACTIONS BUT WITHs | |
| case OP_CONSTRUCT: | case OP_CONSTRUCT: |
| { | { |
| Value *value=POP(); | Value *value=POP(); |
| Value *name=POP(); | String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| ncontext->put_element(*name, value); | value->set_name(name); |
| ncontext->put_element(name, value); | |
| break; | break; |
| } | } |
| case OP_WRITE: | case OP_WRITE: |
| { | { |
| Value *value=POP(); | Value *value=POP(); |
| Line 140 void Request::execute(Array& ops) { | Line 179 void Request::execute(Array& ops) { |
| break; | break; |
| } | } |
| case OP_CREATE_EWPOOL: | case OP_CREATE_EWPOOL: |
| { | { |
| PUSH(wcontext); | PUSH(wcontext); |
| wcontext=NEW WContext(pool(), 0 /* empty */); | wcontext=NEW WWrapper(pool(), 0 /* empty */, true /* constructing */); |
| break; | break; |
| } | } |
| case OP_REDUCE_EWPOOL: | case OP_REDUCE_EWPOOL: |
| { | { |
| Value *value=wcontext->value(); | Value *value=wcontext->result(); |
| wcontext=static_cast<WContext *>(stack.pop()); | wcontext=static_cast<WContext *>(POP()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_CREATE_RWPOOL: | |
| { | |
| Value *ncontext=POP(); | |
| PUSH(rcontext); | |
| rcontext=ncontext; | |
| PUSH(wcontext); | |
| wcontext=NEW WWrapper(pool(), ncontext, false /* not constructing */); | |
| break; | |
| } | |
| case OP_REDUCE_RWPOOL: | |
| { | |
| String *string=wcontext->get_string(); | |
| Value *value=string?NEW VString(*string):NEW VString(pool()); | |
| wcontext=static_cast<WContext *>(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<WContext *>(POP()); | |
| PUSH(value); | |
| break; | |
| } | |
| // CALL | |
| case OP_GET_METHOD_FRAME: | |
| { | |
| Value *value=POP(); | |
| // [self/class?;params;local;code/native_code](name) | |
| Junction *junction=value->get_junction(); | |
| if(!junction) | |
| THROW(0,0, | |
| &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) | |
| VMethodFrame *frame=NEW VMethodFrame(pool(), *junction); | |
| PUSH(frame); | |
| break; | |
| } | |
| case OP_STORE_PARAM: | |
| { | |
| Value *value=POP(); | |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack[0]); | |
| frame->store_param(value); | |
| break; | |
| } | |
| case OP_CALL: | |
| { | |
| fprintf(stderr, "->\n"); | |
| VMethodFrame *frame=static_cast<VMethodFrame *>(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<WContext *>(POP()); | |
| rcontext=POP(); | |
| root=POP(); | |
| self=static_cast<VAliased *>(POP()); | |
| wcontext->write(value); | |
| fprintf(stderr, "<-returned"); | |
| break; | |
| } | |
| // EXPRESSION | |
| case OP_ADD: | |
| { | |
| Value *b=POP(); | |
| Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| a->get_double() + | |
| b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_SUB: | |
| { | |
| Value *b=POP(); | |
| Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| a->get_double() - | |
| b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_MUL: | |
| { | |
| Value *b=POP(); | |
| Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| a->get_double() * | |
| b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_DIV: | |
| { | |
| Value *b=POP(); | |
| Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| a->get_double() / | |
| b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| default: | default: |
| printf("\tTODO"); | fprintf(stderr, "\tTODO"); |
| break; | break; |
| } | } |
| printf("\n"); | fprintf(stderr, "\n"); |
| } | } |
| } | } |
| Value *Request::get_element() { | Value *Request::get_element() { |
| Value *name=POP(); | String& name=POP_NAME(); |
| Value *ncontext=POP(); | 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) | Value *value=ncontext->get_element(name); |
| // name áûâàåò èìÿ junction, òîãäà èëè îñòàâëÿåò â ïîêîå, èëè âû÷èñëÿåò â çàâèñèìîñòè îò ôëàãà ÀÂÒÎÂÛ×ÈÑËßÒÜ | |
| if(!value) { | if(value) { |
| // value=NEW VHash(pool()); | Junction *junction=value->get_junction(); |
| // ncontext->put_element(*name, value); | 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<WContext *>(POP()); | |
| rcontext=POP(); | |
| root=POP(); | |
| self=static_cast<VAliased *>(POP()); | |
| fprintf(stderr, "<-ja returned"); | |
| } | |
| } else { | |
| value=NEW VUnknown(pool()); | value=NEW VUnknown(pool()); |
| value->set_name(name); | |
| } | } |
| return value; | return value; |
| } | |
| } |