| // Copyright 2018 The CUE Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package cue |
| |
| // validate returns whether there is any error, recursively. |
| func validate(ctx *context, v value) *bottom { |
| eval := v.evalPartial(ctx) |
| if err, ok := eval.(*bottom); ok && err.code != codeIncomplete && err.code != codeCycle { |
| return eval.(*bottom) |
| } |
| switch x := eval.(type) { |
| case *structLit: |
| x = x.expandFields(ctx) |
| if ctx.maxDepth++; ctx.maxDepth > 20 { |
| return nil |
| } |
| for i := range x.arcs { |
| if err := validate(ctx, x.at(ctx, i)); err != nil { |
| ctx.maxDepth-- |
| return err |
| } |
| } |
| ctx.maxDepth-- |
| case *list: |
| // TODO: also validate types for open lists? |
| return validate(ctx, x.elem) |
| } |
| return nil |
| } |