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transforms.go
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transforms.go
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// Copyright 2016-2018, Pulumi Corporation.
//
// 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 tfbridge
import (
"encoding/json"
"github.com/pkg/errors"
"github.com/pulumi/pulumi/pkg/resource"
)
// TransformJSONDocument permits either a string, which is presumed to represent an already-stringified JSON document,
// or a map, which will be transformed into its JSON representation.
func TransformJSONDocument(v resource.PropertyValue) (resource.PropertyValue, error) {
// We can't marshal properties that contain unknowns. Turn these into an unknown value instead.
if v.ContainsUnknowns() {
return resource.MakeComputed(resource.NewStringProperty("")), nil
}
if v.IsString() {
return v, nil
} else if v.IsObject() {
m := v.Mappable()
b, err := json.Marshal(m)
if err != nil {
return resource.PropertyValue{}, err
}
return resource.NewStringProperty(string(b)), nil
}
return resource.PropertyValue{},
errors.Errorf("expected string or JSON map; got %T", v.V)
}