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| version 1.9, 2001/02/21 11:19:19 | version 1.70, 2001/03/08 13:13:41 |
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| Line 4 | Line 4 |
| #include "pa_array.h" | #include "pa_array.h" |
| #include "code.h" | #include "code.h" |
| #include "pa_request.h" | |
| #include "pa_vstring.h" | |
| #include "pa_vhash.h" | |
| #include "pa_vunknown.h" | |
| #include "pa_vcframe.h" | |
| #include "pa_vmframe.h" | |
| #include "pa_vobject.h" | |
| #include "pa_vdouble.h" | |
| #include "pa_vbool.h" | |
| #include <stdio.h> | #include <stdio.h> |
| #define PUSH(value) stack.push(value) | |
| #define POP() static_cast<Value *>(stack.pop()) | |
| #define POP_NAME() static_cast<Value *>(stack.pop())->as_string() | |
| char *opcode_name[]={ | char *opcode_name[]={ |
| "STRING", | // literals |
| "CODE_ARRAY", | "VALUE", "CODE__STORE_PARAM", |
| "WITH_ROOT", "WITH_SELF", "WITH_READ", "WITH_WRITE", | |
| // actions | |
| "WITH_SELF", "WITH_ROOT", "WITH_READ", "WITH_WRITE", | |
| "GET_CLASS", | |
| "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", "BIN_XOR", | |
| "LOG_AND", "LOG_OR", "LOG_XOR", | |
| "NUM_LT", "NUM_GT", "NUM_LE", "NUM_GE", "NUM_EQ", "NUM_NE", | |
| "STR_LT", "STR_GT", "STR_LE", "STR_GE", "STR_EQ", "STR_NE" | |
| }; | }; |
| void dump(int level, const Array& ops) { | void dump(int level, const Array& ops) { |
| if(0){ | |
| int size=ops.size(); | |
| //fprintf(stderr, "size=%d\n", size); | |
| for(int i=0; i<size; i++) { | |
| Operation op; | |
| op.cast=ops.quick_get(i); | |
| fprintf(stderr, "%8X\n", op.cast); | |
| } | |
| } | |
| int size=ops.size(); | int size=ops.size(); |
| //fprintf(stderr, "size=%d\n", size); | |
| for(int i=0; i<size; i++) { | for(int i=0; i<size; i++) { |
| int code=reinterpret_cast<int>(ops.raw_get(i)); | Operation op; |
| printf("%*s%s", level*4, "", opcode_name[code]); | op.cast=ops.quick_get(i); |
| fprintf(stderr, "%*s%s", level*4, "", opcode_name[op.code]); | |
| if(code==OP_STRING) { | if(op.code==OP_VALUE) { |
| printf(" \"%s\"", static_cast<const String *>(ops.raw_get(++i))->cstr()); | Value *value=static_cast<Value *>(ops.quick_get(++i)); |
| fprintf(stderr, " \"%s\" %s", value->get_string()->cstr(), value->type()); | |
| } | } |
| printf("\n"); | fprintf(stderr, "\n"); |
| if(code==OP_CODE_ARRAY) { | if(op.code==OP_CODE__STORE_PARAM) { |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.raw_get(++i)); | const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); |
| dump(level+1, *local_ops); | dump(level+1, *local_ops); |
| } | } |
| } | } |
| fflush(stderr); | |
| } | } |
| void execute(Pool& pool, const Array& ops) { | void Request::execute(const Array& ops) { |
| puts("---------------------------"); | if(1) { |
| dump(0, ops); | fputs("source----------------------------\n", stderr); |
| puts("---------------------------"); | dump(0, ops); |
| fputs("execution-------------------------\n", stderr); | |
| } | |
| int size=ops.size(); | |
| //fprintf(stderr, "size=%d\n", size); | |
| for(int i=0; i<size; i++) { | |
| Operation op; | |
| op.cast=ops.quick_get(i); | |
| fprintf(stderr, "%d:%s", stack.top()+1, opcode_name[op.code]); fflush(stderr); | |
| switch(op.code) { | |
| // param in next instruction | |
| case OP_VALUE: | |
| { | |
| Value *value=static_cast<Value *>(ops.quick_get(++i)); | |
| fprintf(stderr, " \"%s\" %s", value->get_string()->cstr(), value->type()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_CODE__STORE_PARAM: | |
| { | |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack[stack.top()]); | |
| // code | |
| 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, frame, frame, local_ops); | |
| Value *value=NEW VJunction(j); | |
| value->set_name(frame->name()); | |
| // store param | |
| frame->store_param(value); | |
| break; | |
| } | |
| case OP_GET_CLASS: | |
| { | |
| String& name=POP_NAME(); | |
| VClass *vclass=static_cast<VClass *>(classes().get(name)); | |
| if(!vclass) | |
| THROW(0,0, | |
| &name, | |
| ": undefined class"); | |
| PUSH(vclass); | |
| break; | |
| } | |
| // OP_WITH | |
| case OP_WITH_SELF: | |
| { | |
| PUSH(self); | |
| break; | |
| } | |
| case OP_WITH_ROOT: | |
| { | |
| PUSH(root); | |
| break; | |
| } | |
| case OP_WITH_READ: | |
| { | |
| PUSH(rcontext); | |
| break; | |
| } | |
| case OP_WITH_WRITE: | |
| { | |
| PUSH(wcontext); | |
| break; | |
| } | |
| // OTHER ACTIONS BUT WITHs | |
| case OP_CONSTRUCT: | |
| { | |
| Value *value=POP(); | |
| String& name=POP_NAME(); | |
| Value *ncontext=POP(); | |
| value->set_name(name); | |
| ncontext->put_element(name, value); | |
| break; | |
| } | |
| case OP_WRITE: | |
| { | |
| Value *value=POP(); | |
| wcontext->write(*value); | |
| break; | |
| } | |
| case OP_GET_ELEMENT: | |
| { | |
| Value *value=get_element(); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_GET_ELEMENT__WRITE: | |
| { | |
| Value *value=get_element(); | |
| wcontext->write(*value); | |
| break; | |
| } | |
| case OP_CREATE_EWPOOL: | |
| { | |
| PUSH(wcontext); | |
| wcontext=NEW WWrapper(pool(), 0 /* empty */, true /* constructing */); | |
| break; | |
| } | |
| case OP_REDUCE_EWPOOL: | |
| { | |
| Value *value=wcontext->result(); | |
| wcontext=static_cast<WContext *>(POP()); | |
| PUSH(value); | |
| 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(); | |
| // info: this one's always method-junction, not a code-junction | |
| 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()); | |
| VMethodFrame *frame=NEW VMethodFrame(pool(), *junction); | |
| frame->set_name(junction->self.name()); | |
| 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(..)) | |
| self=NEW VObject(pool(), *called_class); | |
| frame->write(*self); | |
| } 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); | |
| Method& method=*frame->junction.method; | |
| if(method.native_code) // native code? | |
| (*method.native_code)(*this, frame->numbered_params()); // execute it | |
| else // parser code | |
| execute(*method.parser_code); // execute it | |
| } | |
| Value *value=wcontext->result(); | |
| wcontext=static_cast<WContext *>(POP()); | |
| rcontext=POP(); | |
| root=POP(); | |
| self=static_cast<VAliased *>(POP()); | |
| PUSH(value); | |
| fprintf(stderr, "<-returned"); | |
| break; | |
| } | |
| // expression ops: unary | |
| case OP_NEG: | |
| { | |
| Value *operand=POP(); | |
| Value *value=NEW VDouble(pool(), -operand->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_INV: | |
| { | |
| Value *operand=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| ~static_cast<int>(operand->get_double())); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_NOT: | |
| { | |
| Value *operand=POP(); | |
| Value *value=NEW VBool(pool(), !operand->get_bool()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_DEF: | |
| { | |
| Value *operand=POP(); | |
| Value *value=NEW VBool(pool(), operand->get_defined()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_IN: | |
| { | |
| Value *operand=POP(); | |
| Value *value=NEW VBool(pool(), true/*TODO*/); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_FEXISTS: | |
| { | |
| Value *operand=POP(); | |
| Value *value=NEW VBool(pool(), true/*TODO*/); | |
| PUSH(value); | |
| break; | |
| } | |
| // expression ops: binary | |
| 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_ADD: | |
| { | |
| 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; | |
| } | |
| case OP_MOD: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| static_cast<int>(a->get_double()) % | |
| static_cast<int>(b->get_double())); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_BIN_AND: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| static_cast<int>(a->get_double()) & | |
| static_cast<int>(b->get_double())); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_BIN_OR: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| static_cast<int>(a->get_double()) | | |
| static_cast<int>(b->get_double())); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_BIN_XOR: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VDouble(pool(), | |
| static_cast<int>(a->get_double()) ^ | |
| static_cast<int>(b->get_double())); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_LOG_AND: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_bool() && b->get_bool()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_LOG_OR: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_bool() || b->get_bool()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_LOG_XOR: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_bool() ^ b->get_bool()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_NUM_LT: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_double() < b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_NUM_GT: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_double() > b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_NUM_LE: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_double() <= b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_NUM_GE: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_double() >= b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_NUM_EQ: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_double() == b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_NUM_NE: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->get_double() != b->get_double()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_STR_LT: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->as_string() < b->as_string()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_STR_GT: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->as_string() > b->as_string()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_STR_LE: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->as_string() <= b->as_string()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_STR_GE: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->as_string() >= b->as_string()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_STR_EQ: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->as_string() == b->as_string()); | |
| PUSH(value); | |
| break; | |
| } | |
| case OP_STR_NE: | |
| { | |
| Value *b=POP(); Value *a=POP(); | |
| Value *value=NEW VBool(pool(), a->as_string() != b->as_string()); | |
| PUSH(value); | |
| break; | |
| } | |
| default: | |
| THROW(0,0, | |
| 0, | |
| "unhandled '%s' opcode", opcode_name[op.code]); | |
| } | |
| fprintf(stderr, "\n"); | |
| } | |
| } | |
| Value *Request::get_element() { | |
| String& name=POP_NAME(); | |
| Value *ncontext=POP(); | |
| Value *value=ncontext->get_element(name); | |
| // autocalc possible code-junction | |
| value=value?&autocalc(*value):NEW VUnknown(pool()); | |
| value->set_name(name); | |
| return value; | |
| } | |
| Value& Request::autocalc(Value& 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& result=*NEW VString(*frame.get_string()); | |
| wcontext=static_cast<WContext *>(POP()); | |
| rcontext=POP(); | |
| root=POP(); | |
| self=static_cast<VAliased *>(POP()); | |
| fprintf(stderr, "<-ja returned"); | |
| return result; | |
| } else | |
| return value; | |
| } | } |
| void Request::write(Value& avalue) { | |
| wcontext->write(avalue); | |
| } | |