markused: add -skip-unused for programs that import x.vweb too (do not skip unused routing methods)

vlib/v/checker/fn.v

@@ -2489,7 +2489,7 @@ fn (mut c Checker) post_process_generic_fns() ! {
 		for concrete_types in gtypes {
 			c.table.cur_concrete_types = concrete_types
 			c.fn_decl(mut node)
-			if node.name in ['vweb.run', 'vweb.run_at'] {
+			if node.name in ['x.vweb.run', 'x.vweb.run_at', 'vweb.run', 'vweb.run_at'] {
 				for ct in concrete_types {
 					if ct !in c.vweb_gen_types {
 						c.vweb_gen_types << ct

vlib/v/markused/markused.v

@@ -304,33 +304,8 @@ pub fn mark_used(mut table ast.Table, pref_ &pref.Preferences, ast_files []&ast.
 		}
 	}
 
-	// handle vweb magic router methods:
-	typ_vweb_result := table.find_type_idx('vweb.Result')
-	if typ_vweb_result != 0 {
-		all_fn_root_names << 'vweb.filter'
-		typ_vweb_context := ast.Type(table.find_type_idx('vweb.Context')).set_nr_muls(1)
-		all_fn_root_names << '${int(typ_vweb_context)}.html'
-		for vgt in table.used_vweb_types {
-			sym_app := table.sym(vgt)
-			for m in sym_app.methods {
-				mut skip := true
-				if m.name == 'before_request' {
-					// TODO: handle expansion of method calls in generic functions in a more universal way
-					skip = false
-				}
-				if m.return_type == typ_vweb_result {
-					skip = false
-				}
-				//
-				if skip {
-					continue
-				}
-				pvgt := vgt.set_nr_muls(1)
-				// eprintln('vgt: $vgt | pvgt: $pvgt | sym_app.name: $sym_app.name | m.name: $m.name')
-				all_fn_root_names << '${int(pvgt)}.${m.name}'
-			}
-		}
-	}
+	handle_vweb(mut table, mut all_fn_root_names, 'vweb.Result', 'vweb.filter', 'vweb.Context')
+	handle_vweb(mut table, mut all_fn_root_names, 'x.vweb.Result', 'x.vweb.filter', 'x.vweb.Context')
 
 	// handle ORM drivers:
 	orm_connection_implementations := table.iface_types['orm.Connection'] or { []ast.Type{} }
@@ -464,3 +439,32 @@ fn all_fn_const_and_global(ast_files []&ast.File) (map[string]ast.FnDecl, map[st
 	}
 	return all_fns, all_consts, all_globals
 }
+
+fn handle_vweb(mut table ast.Table, mut all_fn_root_names []string, result_name string, filter_name string, context_name string) {
+	// handle vweb magic router methods:
+	result_type_idx := table.find_type_idx(result_name)
+	if result_type_idx != 0 {
+		all_fn_root_names << filter_name
+		typ_vweb_context := ast.Type(table.find_type_idx(context_name)).set_nr_muls(1)
+		all_fn_root_names << '${int(typ_vweb_context)}.html'
+		for vgt in table.used_vweb_types {
+			sym_app := table.sym(vgt)
+			for m in sym_app.methods {
+				mut skip := true
+				if m.name == 'before_request' {
+					// TODO: handle expansion of method calls in generic functions in a more universal way
+					skip = false
+				}
+				if m.return_type == result_type_idx {
+					skip = false
+				}
+				if skip {
+					continue
+				}
+				pvgt := vgt.set_nr_muls(1)
+				// eprintln('vgt: $vgt | pvgt: $pvgt | sym_app.name: $sym_app.name | m.name: $m.name')
+				all_fn_root_names << '${int(pvgt)}.${m.name}'
+			}
+		}
+	}
+}

vlib/v/tests/skip_unused/x_vweb_run_at.run.out

@@ -0,0 +1,2 @@
+[Vweb] Running app on http://localhost:38090/
+done

vlib/v/tests/skip_unused/x_vweb_run_at.skip_unused.run.out

@@ -0,0 +1,2 @@
+[Vweb] Running app on http://localhost:38090/
+done

vlib/v/tests/skip_unused/x_vweb_run_at.vv

@@ -0,0 +1,23 @@
+import x.vweb
+import time
+
+pub struct App {}
+
+pub struct Context {
+	vweb.Context
+}
+
+fn main() {
+	spawn fn () {
+		time.sleep(100 * time.millisecond)
+		println('done')
+		exit(0)
+	}()
+	mut app := &App{}
+	vweb.run_at[App, Context](mut app, port: 38090)!
+}
+
+@['/']
+pub fn (app &App) index(mut ctx Context) vweb.Result {
+	return ctx.text('Hello World')
+}