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core.C, context&value .h

void process(Pool& pool, 
			 Value& self,
			 RContext& rcontext, WContext& wcontext, 
			 StringIterator& code, char char_to_stop_before) {
	
	// $ on code?
	process_dollar(pool, rcontext, wcontext, code, char_to_stop_before);

	// ^ on code?
	process_bird(pool, rcontext, wcontext, code, char_to_stop_before);
}

void process_dollar(Pool& pool, 
					Value& THIS,
					RContext& rcontext, WContext& wcontext, 
					StringIterator& iter, char char_to_stop_before) {

	// $name.field.subfield -- read
	// $name.field.subfield(constructor code) -- construct
	// $name.field.subfield[usage code & if none existed autoconstructed as VHash] -- use OR auto-VHash construct
	
	Array/*<String&>*/ names(pool);  // what.they.refer.to left-to-right list
	char names_ended_before; // the char after long name
	get_names(
		iter, " ([",
		&names, &names_ended_before); // must return count()>0

	bool read_mode=name_ended_before==' ';
	Value *context=read_mode?rcontext:wcontext;
	
	if(read_mode) {
		for(int i=0; i<names.count(); i++) {
			context=context->get_element(static_cast<Value *>(names.get[i]));
			if(!context) // no such object field, nothing bad, just ignore that
				return;
		}
		wcontext.write(context);
	} else { // write mode
		iter++; // skip '(' '['

		bool construct_mode=names_ended_before=='(';

		int steps=names.count();
		if(construct_mode)
			steps--;
		for(int i=0; i<steps; i++) {
			String& name=static_cast<String&>(names.get[i]);
			Value *next_current=context->get_element(name);
			if(next_current)
				next_current=context->put_element(name, new(pool) VHash(pool));
			context=new_current;
		}

		if(construct_mode) {  
			// pure side effect, no wcontext.write here
			String& name=static_cast<String&>(names.get[steps]);
			WContext local_wcontext(pool /* empty */);
			process(pool, rcontext, local_wcontext, iter, ')');
			context->put_element(name, local_wcontext.value());
		} else { // =='['
			WContext local_context(pool, context);
			process(pool, local_context, local_context, iter, ']');
			wcontext.write(local_context);
		}
		
		iter++; // skip ')' ']'
	}
}

void process_bird(Pool& pool, 
				  Value& self,
				  RContext& rcontext, WContext& wcontext, 
				  StringIterator& iter, char char_to_stop_before) {
	
	// ^name.field.subfield.method[..] -- plain call
	// ^name.field.subfield.method_ref[..] -- method ref call, when .get_method()!=0
	
	Array/*<String&>*/ names(pool);  // what.they.refer.to left-to-right list
	char names_ended_before; // the char after long name
	get_names(
		iter, "[",
		&names, &names_ended_before); // must return count()>0

	Value *context=rcontext;
	iter++; // skip '['

	Value *local_self=context;
	int steps=names.count()-1;
	for(int i=0; i<steps; i++) {
		String& name=static_cast<String&>(names.get[i]);
		context=(local_self=context)->get_element(name);
		if(!context) // no such object field, sad story: can't call method of void
			pool.exception().raise(name, "call: to void.method");
	}
	
	String& name=static_cast<String&>(names.get[steps]);
	// first we're trying to locate method with that 'name'
	Method *method=context.get_method(name);
	if(!method) { // no such method: try to locate method ref field
		Value *value=context.get_element(name);
		if(!value) // failed: no element of that 'name'
			pool.exception().raise(name, "call: no method field found");
		method=value->get_method();
		if(!method) // failed: that field wasn't method_ref
			pool.exception().raise(name, "call: this field is not a method reference");
		local_self=value->get_self();
	}


	Array/*<String&>*/ param_values(pool);
	get_params(
		iter, "]",
		&param_values);
	iter++; // skip ']'

	Method_this_n_params local_rcontext(pool, 
		local_self,
		method->param_names, param_values);
	WContext local_wcontext(pool /* empty */);
	process(pool, local_rcontext, local_wcontext, iter, ']');
	wcontext.write(local_wcontext);
}