--- parser3/src/include/Attic/pa_value.h	2001/02/12 11:34:11	1.2
+++ parser3/src/include/Attic/pa_value.h	2001/03/08 13:13:39	1.44
@@ -1,5 +1,5 @@
 /*
-  $Id: pa_value.h,v 1.2 2001/02/12 11:34:11 paf Exp $
+  $Id: pa_value.h,v 1.44 2001/03/08 13:13:39 paf Exp $
 */
 
 /*
@@ -9,50 +9,156 @@
 #ifndef PA_VALUE_H
 #define PA_VALUE_H
 
+#include "pa_pool.h"
 #include "pa_string.h"
+#include "pa_array.h"
 
-class Method {
+#define NAME_NAME "NAME"
+
+class Value;
+class VClass;
+class Junction;
+class WContext;
+class VAliased;
+class Request;
+
+typedef void (*Native_code_ptr)(Request& request, Array& params);
+
+class Method : public Pooled {
 public:
-	Array param_names;
-	String code;
+	const String& name;
+	// either numbered params // for native-code methods = operators
+	int numbered_params_count;
+	// or named params&locals // for parser-code methods
+	Array *params_names;  Array *locals_names;
+	// the Code
+	const Array *parser_code;/*OR*/Native_code_ptr native_code;
+
+	Method(
+		Pool& apool,
+		const String& aname,
+		int anumbered_params_count,
+		Array *aparams_names, Array *alocals_names,
+		const Array *aparser_code, Native_code_ptr anative_code) : 
+
+		Pooled(apool),
+		name(aname),
+		numbered_params_count(anumbered_params_count),
+		params_names(aparams_names), locals_names(alocals_names),
+		parser_code(aparser_code), native_code(anative_code) {
+	}
 };
 
-class Method_ref {
+class Junction : public Pooled {
 public:
-	Value *self;
-	Method& method;
+
+	Junction(Pool& apool,
+		Value& aself,
+		VClass *avclass, Method *amethod,
+		Value *aroot,
+		Value *arcontext,
+		WContext *awcontext,
+		const Array *acode) : Pooled(apool),
+		
+		self(aself),
+		vclass(avclass), method(amethod),
+		root(aroot),
+		rcontext(arcontext),
+		wcontext(awcontext),
+		code(acode) {
+	}
+
+	// always present
+	Value& self;
+	// either these // so called 'method-junction'
+	VClass *vclass;  Method *method;
+	// or these are present // so called 'code-junction'
+	Value *root;
+	Value *rcontext;
+	WContext *wcontext;
+	const Array *code;
 };
 
-class Value {
-public:
-	// text: value
-	virtual String *get_string() const =0;
-	virtual String *put_string(const String *astring)=0;
+class Value : public Pooled {
+public: // Value
+
+	// all: for error reporting after fail(), etc
+	virtual const char *type() const =0;
+	String& name() const { return *fname; }
+
+	// unknown: false
+	// others: true
+	virtual bool get_defined() { return true; }
+
+	// string: value
+	// unknown: ""
+	// double: value
+	// others: 0
+	virtual String *get_string() { return 0; }
+	
+	// string: value
+	// double: value
+	// bool: value
+	virtual double get_double() { failed("getting numerical value of '%s'"); return 0; }
+
+	// unknown: false
+	// bool: value
+	// double: 0 or !0
+	// string: empty or not
+	// hash: size!=0
+	// TODO table: count!=0
+	// others: true
+	virtual bool get_bool() { return true; }
+
+	// junction: auto_calc,root,self,rcontext,wcontext, code
+	virtual Junction *get_junction() { return 0; }
 
 	// hash: (key)=value
 	// object_class: (field)=STATIC.value;(STATIC)=hash;(method)=method_ref with self=object_class
-	// object_instance: (field)=value;(STATIC)=hash;(method)=method_ref
-	virtual Value *get_element(const String& name) const =0;
-	virtual Value *put_element(const String& name, const Value *avalue)=0;
+	// object_instance: (field)=value;(CLASS)=vclass;(method)=method_ref
+	// operator_class: (field)=value - static values only
+	// codeframe: wcontext_transparent
+	// methodframe: my or self_transparent
+	virtual Value *get_element(const String& name) { failed("type is '%s', can not get element from it"); return 0; }
+	
+	// hash: (key)=value
+	// object_class, operator_class: (field)=value - static values only
+	// object_instance: (field)=value
+	// codeframe: wcontext_transparent
+	// methodframe: my or self_transparent
+	virtual void put_element(const String& name, Value *value) { failed("type is '%s', can not put element to it"); }
 
-	// object_instance, object_class: method
-	virtual Method *get_method(const String& name) const =0;
+	// object_class, object_instance: object_class
+	// wcontext: none yet | transparent
+	virtual VClass *get_class() { return 0; }
 
-	// method_ref: "self" part, method
-	virtual Method_ref *get_method_ref() const =0;
-};
+	// valiased: this
+	// wcontext: transparent
+	// methodframe: self_transparent
+	virtual VAliased *get_aliased() { return 0; }
 
-/*
-descendants:
-	text:+ value:String
-    hash:+ keys&values:Hash
-    table:+ columns_order:Array, columns:Hash, rows:Array
-    object_class:+ STATIC:Hash, methods:Hash
-    object_instance:+ object_class, fields:Hash
-    method_ref:+ self:Value/object_class, method:String
-    method_self_n_params:+ self:Value/object_class[1st try], params&values:Hash[2nd try]
+public: // usage
 
+	Value(Pool& apool) : Pooled(apool), fname(new(apool) String(apool)) {
+		fname->APPEND_CONST("unnamed");
+	}
 
-*/
+	void set_name(String& aname) { fname=&aname; }
+
+	String& as_string() {
+		String *result=get_string(); 
+		if(!result)
+			failed("getting string of '%s'");
+		return *result;
+	}
+
+private:
+
+	String *fname;
+
+private: 
+
+	void failed(char *action);
+};
 
 #endif