github.com/joomcode/cue@v0.4.4-0.20221111115225-539fe3512047/cue/ast/astutil/resolve_test.go (about)

     1  // Copyright 2021 CUE Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package astutil_test
    16  
    17  import (
    18  	"fmt"
    19  	"path/filepath"
    20  	"testing"
    21  	"text/tabwriter"
    22  
    23  	"github.com/joomcode/cue/cue/ast"
    24  	"github.com/joomcode/cue/internal/astinternal"
    25  	"github.com/joomcode/cue/internal/cuetest"
    26  	"github.com/joomcode/cue/internal/cuetxtar"
    27  )
    28  
    29  func TestResolve(t *testing.T) {
    30  	test := cuetxtar.TxTarTest{
    31  		Root:   "./testdata/resolve",
    32  		Name:   "resolve",
    33  		Update: cuetest.UpdateGoldenFiles,
    34  	}
    35  
    36  	test.Run(t, func(t *cuetxtar.Test) {
    37  		a := t.ValidInstances()
    38  
    39  		for _, f := range a[0].Files {
    40  			if filepath.Ext(f.Filename) != ".cue" {
    41  				continue
    42  			}
    43  
    44  			identMap := map[ast.Node]int{}
    45  			ast.Walk(f, func(n ast.Node) bool {
    46  				switch n.(type) {
    47  				case *ast.File, *ast.StructLit, *ast.Field, *ast.ImportSpec,
    48  					*ast.Ident, *ast.ForClause, *ast.LetClause, *ast.Alias:
    49  					identMap[n] = len(identMap) + 1
    50  				}
    51  				return true
    52  			}, nil)
    53  
    54  			// Resolve was already called.
    55  
    56  			base := filepath.Base(f.Filename)
    57  			b := t.Writer(base[:len(base)-len(".cue")])
    58  			w := tabwriter.NewWriter(b, 0, 4, 1, ' ', 0)
    59  			ast.Walk(f, func(n ast.Node) bool {
    60  				if x, ok := n.(*ast.Ident); ok {
    61  					fmt.Fprintf(w, "%d[%s]:\tScope: %d[%T]\tNode: %d[%s]\n",
    62  						identMap[x], astinternal.DebugStr(x),
    63  						identMap[x.Scope], x.Scope,
    64  						identMap[x.Node], astinternal.DebugStr(x.Node))
    65  				}
    66  				return true
    67  			}, nil)
    68  			w.Flush()
    69  
    70  			fmt.Fprintln(b)
    71  		}
    72  	})
    73  }