work properly on changes in view definitions

vite.config.js

@@ -3,8 +3,12 @@ import { resolve } from 'path'
 import { defineConfig } from 'vite';
 import { name } from './package.json'
 
+let viewPaths = {} // view: [path]
+let pathViews = {} // path: [view]
+function duplicate(obj){ return JSON.parse(JSON.stringify(obj)) }
+function without(el, arr) { return arr.filter(function(e){ if(e != el) { return e } }) }
+
 function proRouterViews() {
-  let views = {}
   return {
 	name: 'pro-router-views',
 	transformIndexHtml(html) {
@@ -18,13 +22,36 @@ function proRouterViews() {
 		  let viewRegExp = /tag view-((\w|\S)+)( |\n)/g
 		  let result = null
 		  let views_str = ""
+		  let views = pathViews[id] ||= []
+		  let missingDeclarations = duplicate(views)
+		  
 		  while(result = viewRegExp.exec(src)) {
 			let view = result[1]
-		    if(view != 'not_found' && !views[view]){
-			  views[view] = true
-			  views_str += "Views.push(\""+ result[1] +"\");"
+			if(view != 'not_found'){
+			  let paths = viewPaths[view] ||= []
+			  missingDeclarations = without(view, missingDeclarations)
+			  if(!views.includes(view)){
+				views.push(view)
+				if(!paths.includes(id)){
+			  	  paths.push(id)
+				}
+			  }
+			  if(paths[0] == id){
+			  	views_str += "Views.push(\""+ view +"\");"
+			  }
 			}
-		}
+
+		  }
+		  missingDeclarations.forEach(function(view){
+			let paths = viewPaths[view] ||= []
+			if((paths[0] == id) && (paths.length > 1)){
+			  views_str += "Views.push(\""+ view +"\");"
+			} else {
+			  paths = without(id, paths)
+			  views = without(view, views)
+			}
+		  })
+
 		  return { code: views_str+src, map: null }
 		}
       }