Visit adds WithContext.Name argument to all functions calls with a context.Context argument.
(node *ast.Node)
| 18 | |
| 19 | // Visit adds WithContext.Name argument to all functions calls with a context.Context argument. |
| 20 | func (w WithContext) Visit(node *ast.Node) { |
| 21 | switch call := (*node).(type) { |
| 22 | case *ast.CallNode: |
| 23 | fn := call.Callee.Type() |
| 24 | if fn == nil { |
| 25 | return |
| 26 | } |
| 27 | // If callee type is interface{} (unknown), look up the function type from |
| 28 | // the Functions table or Env. This handles cases where the checker returns early |
| 29 | // without visiting nested call arguments (e.g., Date2() in Now2().After(Date2())) |
| 30 | // because the outer call's type is unknown due to missing context arguments. |
| 31 | if fn.Kind() == reflect.Interface { |
| 32 | if ident, ok := call.Callee.(*ast.IdentifierNode); ok { |
| 33 | if w.Functions != nil { |
| 34 | if f, ok := w.Functions[ident.Value]; ok { |
| 35 | fn = f.Type() |
| 36 | } |
| 37 | } |
| 38 | if fn.Kind() == reflect.Interface && w.Env != nil { |
| 39 | if m, ok := w.Env.MethodByName(w.NtCache, ident.Value); ok { |
| 40 | fn = m.Type |
| 41 | } |
| 42 | } |
| 43 | } |
| 44 | } |
| 45 | if fn.Kind() != reflect.Func { |
| 46 | return |
| 47 | } |
| 48 | switch fn.NumIn() { |
| 49 | case 0: |
| 50 | return |
| 51 | case 1: |
| 52 | if fn.In(0).String() != "context.Context" { |
| 53 | return |
| 54 | } |
| 55 | default: |
| 56 | if fn.In(0).String() != "context.Context" && |
| 57 | fn.In(1).String() != "context.Context" { |
| 58 | return |
| 59 | } |
| 60 | } |
| 61 | ast.Patch(node, &ast.CallNode{ |
| 62 | Callee: call.Callee, |
| 63 | Arguments: append([]ast.Node{ |
| 64 | &ast.IdentifierNode{Value: w.Name}, |
| 65 | }, call.Arguments...), |
| 66 | }) |
| 67 | } |
| 68 | } |