fix: hint on library and require closes #56

walker/walk.go

@@ -200,6 +200,14 @@ func (w *Walker) walkCallExpression(node *ast.CallExpression) (ast.Types, ast.No
 		return w.walkCallExpressionMissing(node)
 	}
 
+	if contains(node.Name, []string{"library", "require"}) {
+		w.addHintf(
+			node.Token,
+			"use namespace::foo instead of library() or require()",
+		)
+		return ast.Types{}, node
+	}
+
 	for _, v := range node.Arguments {
 		w.Walk(v.Value)
 		w.checkIfIdentifier(v.Value)

walker/walk_test.go

@@ -1184,3 +1184,29 @@ func (p: any) bar(x: int): person
 
 	w.testDiagnostics(t, expected)
 }
+
+func TestLibrary(t *testing.T) {
+	code := `
+library(something)
+
+require(package)
+`
+
+	l := lexer.NewTest(code)
+
+	l.Run()
+	p := parser.New(l)
+
+	prog := p.Run()
+
+	w := New()
+
+	w.Run(prog)
+
+	expected := diagnostics.Diagnostics{
+		{Severity: diagnostics.Hint},
+		{Severity: diagnostics.Hint},
+	}
+
+	w.testDiagnostics(t, expected)
+}