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hclwrite: fix TokensForTraversal handling of index steps

This commit is contained in:
Colin Hoglund 2019-11-11 18:17:19 -05:00 committed by Martin Atkins
parent 3c7194d967
commit b954e171a6
2 changed files with 48 additions and 3 deletions
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8
hclwrite/generate.go
View File

@ -159,12 +159,12 @@ func appendTokensForValue(val cty.Value, toks Tokens) Tokens {
func appendTokensForTraversal(traversal hcl.Traversal, toks Tokens) Tokens {
for _, step := range traversal {
appendTokensForTraversalStep(step, toks)
toks = appendTokensForTraversalStep(step, toks)
}
return toks
}
func appendTokensForTraversalStep(step hcl.Traverser, toks Tokens) {
func appendTokensForTraversalStep(step hcl.Traverser, toks Tokens) Tokens {
switch ts := step.(type) {
case hcl.TraverseRoot:
toks = append(toks, &Token{
@ -188,7 +188,7 @@ func appendTokensForTraversalStep(step hcl.Traverser, toks Tokens) {
Type: hclsyntax.TokenOBrack,
Bytes: []byte{'['},
})
appendTokensForValue(ts.Key, toks)
toks = appendTokensForValue(ts.Key, toks)
toks = append(toks, &Token{
Type: hclsyntax.TokenCBrack,
Bytes: []byte{']'},
@ -196,6 +196,8 @@ func appendTokensForTraversalStep(step hcl.Traverser, toks Tokens) {
default:
panic(fmt.Sprintf("unsupported traversal step type %T", step))
}
return toks
}
func escapeQuotedStringLit(s string) []byte {

43
hclwrite/generate_test.go
View File

@ -6,6 +6,7 @@ import (
"testing"
"github.com/google/go-cmp/cmp"
"github.com/hashicorp/hcl/v2"
"github.com/hashicorp/hcl/v2/hclsyntax"
"github.com/zclconf/go-cty/cty"
)
@ -472,3 +473,45 @@ func TestTokensForValue(t *testing.T) {
})
}
}
func TestTokensForTraversal(t *testing.T) {
tests := []struct {
Val hcl.Traversal
Want Tokens
}{
{
hcl.Traversal{
hcl.TraverseRoot{Name: "root"},
hcl.TraverseAttr{Name: "attr"},
hcl.TraverseIndex{Key: cty.StringVal("index")},
},
Tokens{
{Type: hclsyntax.TokenIdent, Bytes: []byte("root")},
{Type: hclsyntax.TokenDot, Bytes: []byte(".")},
{Type: hclsyntax.TokenIdent, Bytes: []byte("attr")},
{Type: hclsyntax.TokenOBrack, Bytes: []byte{'['}},
{Type: hclsyntax.TokenOQuote, Bytes: []byte(`"`)},
{Type: hclsyntax.TokenQuotedLit, Bytes: []byte("index")},
{Type: hclsyntax.TokenCQuote, Bytes: []byte(`"`)},
{Type: hclsyntax.TokenCBrack, Bytes: []byte{']'}},
},
},
}
for _, test := range tests {
got := TokensForTraversal(test.Val)
if !cmp.Equal(got, test.Want) {
diff := cmp.Diff(got, test.Want, cmp.Comparer(func(a, b []byte) bool {
return bytes.Equal(a, b)
}))
var gotBuf, wantBuf bytes.Buffer
got.WriteTo(&gotBuf)
test.Want.WriteTo(&wantBuf)
t.Errorf(
"wrong result\nvalue: %#v\ngot: %s\nwant: %s\ndiff: %s",
test.Val, gotBuf.String(), wantBuf.String(), diff,
)
}
}
}