d044720045
This change restructures a lot more pertaining to deployments, snapshots, environments, and the like. The most notable change is that the notion of a deploy.Source is introduced, which splits the responsibility between the deploy.Plan -- which simply understands how to compute and carry out deployment plans -- and the idea of something that can produce new objects on-demand during deployment. The primary such implementation is evalSource, which encapsulates an interpreter and takes a package, args, and config map, and proceeds to run the interpreter in a distinct goroutine. It synchronizes as needed to poke and prod the interpreter along its path to create new resource objects. There are two other sources, however. First, a nullSource, which simply refuses to create new objects. This can be handy when writing isolated tests but is also used to simulate the "empty" environment as necessary to do a complete teardown of the target environment. Second, a fixedSource, which takes a pre-computed array of objects, and hands those, in order, to the planning engine; this is mostly useful as a testing technique. Boatloads of code is now changed and updated in the various CLI commands. This further chugs along towards pulumi/lumi#90. The end is in sight.
683 lines
21 KiB
Go
683 lines
21 KiB
Go
// Licensed to Pulumi Corporation ("Pulumi") under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership.
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// Pulumi licenses this file to You under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance with
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// the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package resource
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import (
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"fmt"
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"reflect"
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"sort"
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"github.com/pkg/errors"
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"github.com/pulumi/lumi/pkg/tokens"
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"github.com/pulumi/lumi/pkg/util/contract"
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"github.com/pulumi/lumi/pkg/util/mapper"
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)
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// PropertyKey is the name of a property.
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type PropertyKey tokens.Name
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// PropertySet is a simple set keyed by property name.
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type PropertySet map[PropertyKey]bool
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// PropertyMap is a simple map keyed by property name with "JSON-like" values.
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type PropertyMap map[PropertyKey]PropertyValue
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// NewPropertyMap turns a struct into a property map, using any JSON tags inside to determine naming.
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func NewPropertyMap(s interface{}) PropertyMap {
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m, err := mapper.Unmap(s)
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contract.Assertf(err == nil, "Struct of properties failed to map correctly: %v", err)
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return NewPropertyMapFromMap(m)
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}
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func NewPropertyMapFromMap(m map[string]interface{}) PropertyMap {
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result := make(PropertyMap)
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for k, v := range m {
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result[PropertyKey(k)] = NewPropertyValue(v)
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}
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return result
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}
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// PropertyValue is the value of a property, limited to a select few types (see below).
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type PropertyValue struct {
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V interface{}
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}
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// Computed represents the absence of a property value, because it will be computed at some point in the future. It
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// contains a property value which represents the underlying expected type of the eventual property value.
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type Computed struct {
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Element PropertyValue // the eventual value (type) of the computed property.
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}
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// Output is a property value that will eventually be computed by the resource provider. If an output property is
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// encountered, it means the resource has not yet been created, and so the output value is unavailable. Note that an
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// output property is a special case of computed, but carries additional semantic meaning.
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type Output struct {
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Element PropertyValue // the eventual value (type) of the output property.
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}
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type ReqError struct {
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K PropertyKey
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}
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func IsReqError(err error) bool {
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_, isreq := err.(*ReqError)
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return isreq
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}
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func (err *ReqError) Error() string {
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return fmt.Sprintf("required property '%v' is missing", err.K)
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}
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// BoolOrErr checks that the given property has the type bool, issuing an error if not; req indicates if required.
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func (m PropertyMap) BoolOrErr(k PropertyKey, req bool) (*bool, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsBool() {
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return nil, errors.Errorf("property '%v' is not a bool (%v)", k, reflect.TypeOf(v.V))
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}
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b := v.BoolValue()
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return &b, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// NumberOrErr checks that the given property has the type float64, issuing an error if not; req indicates if required.
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func (m PropertyMap) NumberOrErr(k PropertyKey, req bool) (*float64, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsNumber() {
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return nil, errors.Errorf("property '%v' is not a number (%v)", k, reflect.TypeOf(v.V))
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}
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n := v.NumberValue()
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return &n, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// StringOrErr checks that the given property has the type string, issuing an error if not; req indicates if required.
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func (m PropertyMap) StringOrErr(k PropertyKey, req bool) (*string, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsString() {
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return nil, errors.Errorf("property '%v' is not a string (%v)", k, reflect.TypeOf(v.V))
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}
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s := v.StringValue()
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return &s, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// ArrayOrErr checks that the given property has the type array, issuing an error if not; req indicates if required.
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func (m PropertyMap) ArrayOrErr(k PropertyKey, req bool) (*[]PropertyValue, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsArray() {
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return nil, errors.Errorf("property '%v' is not an array (%v)", k, reflect.TypeOf(v.V))
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}
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a := v.ArrayValue()
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return &a, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// ObjectArrayOrErr ensures a property is an array of objects, issuing an error if not; req indicates if required.
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func (m PropertyMap) ObjectArrayOrErr(k PropertyKey, req bool) (*[]PropertyMap, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsArray() {
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return nil, errors.Errorf("property '%v' is not an array (%v)", k, reflect.TypeOf(v.V))
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}
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a := v.ArrayValue()
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var objs []PropertyMap
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for i, e := range a {
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if e.IsObject() {
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objs = append(objs, e.ObjectValue())
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} else {
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return nil, errors.Errorf(
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"property '%v' array element %v is not an object (%v)", k, i, reflect.TypeOf(e))
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}
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}
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return &objs, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// StringArrayOrErr ensures a property is an array of strings, issuing an error if not; req indicates if required.
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func (m PropertyMap) StringArrayOrErr(k PropertyKey, req bool) (*[]string, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsArray() {
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return nil, errors.Errorf("property '%v' is not an array (%v)", k, reflect.TypeOf(v.V))
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}
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a := v.ArrayValue()
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var strs []string
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for i, e := range a {
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if e.IsString() {
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strs = append(strs, e.StringValue())
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} else {
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return nil, errors.Errorf(
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"property '%v' array element %v is not a string (%v)", k, i, reflect.TypeOf(e))
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}
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}
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return &strs, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// ObjectOrErr checks that the given property is an object, issuing an error if not; req indicates if required.
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func (m PropertyMap) ObjectOrErr(k PropertyKey, req bool) (*PropertyMap, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsObject() {
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return nil, errors.Errorf("property '%v' is not an object (%v)", k, reflect.TypeOf(v.V))
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}
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o := v.ObjectValue()
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return &o, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// ComputedOrErr checks that the given property is computed, issuing an error if not; req indicates if required.
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func (m PropertyMap) ComputedOrErr(k PropertyKey, req bool) (*Computed, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsComputed() {
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return nil, errors.Errorf("property '%v' is not an object (%v)", k, reflect.TypeOf(v.V))
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}
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m := v.ComputedValue()
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return &m, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// OutputOrErr checks that the given property is an output, issuing an error if not; req indicates if required.
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func (m PropertyMap) OutputOrErr(k PropertyKey, req bool) (*Output, error) {
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if v, has := m[k]; has && !v.IsNull() {
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if !v.IsOutput() {
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return nil, errors.Errorf("property '%v' is not an object (%v)", k, reflect.TypeOf(v.V))
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}
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m := v.OutputValue()
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return &m, nil
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} else if req {
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return nil, &ReqError{k}
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}
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return nil, nil
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}
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// ReqBoolOrErr checks that the given property exists and has the type bool.
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func (m PropertyMap) ReqBoolOrErr(k PropertyKey) (bool, error) {
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b, err := m.BoolOrErr(k, true)
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if err != nil {
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return false, err
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}
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return *b, nil
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}
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// ReqNumberOrErr checks that the given property exists and has the type float64.
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func (m PropertyMap) ReqNumberOrErr(k PropertyKey) (float64, error) {
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n, err := m.NumberOrErr(k, true)
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if err != nil {
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return 0, err
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}
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return *n, nil
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}
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// ReqStringOrErr checks that the given property exists and has the type string.
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func (m PropertyMap) ReqStringOrErr(k PropertyKey) (string, error) {
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s, err := m.StringOrErr(k, true)
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if err != nil {
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return "", err
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}
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return *s, nil
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}
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// ReqArrayOrErr checks that the given property exists and has the type array.
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func (m PropertyMap) ReqArrayOrErr(k PropertyKey) ([]PropertyValue, error) {
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a, err := m.ArrayOrErr(k, true)
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if err != nil {
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return nil, err
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}
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return *a, nil
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}
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// ReqObjectArrayOrErr checks that the given property exists and has the type array of objects.
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func (m PropertyMap) ReqObjectArrayOrErr(k PropertyKey) ([]PropertyMap, error) {
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a, err := m.ObjectArrayOrErr(k, true)
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if err != nil {
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return nil, err
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}
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return *a, nil
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}
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// ReqStringArrayOrErr checks that the given property exists and has the type array of objects.
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func (m PropertyMap) ReqStringArrayOrErr(k PropertyKey) ([]string, error) {
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a, err := m.StringArrayOrErr(k, true)
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if err != nil {
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return nil, err
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}
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return *a, nil
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}
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// ReqObjectOrErr checks that the given property exists and has the type object.
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func (m PropertyMap) ReqObjectOrErr(k PropertyKey) (PropertyMap, error) {
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o, err := m.ObjectOrErr(k, true)
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if err != nil {
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return nil, err
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}
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return *o, nil
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}
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// ReqComputedOrErr checks that the given property exists and is computed.
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func (m PropertyMap) ReqComputedOrErr(k PropertyKey) (Computed, error) {
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v, err := m.ComputedOrErr(k, true)
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if err != nil {
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return Computed{}, err
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}
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return *v, nil
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}
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// ReqOutputOrErr checks that the given property exists and is an output property.
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func (m PropertyMap) ReqOutputOrErr(k PropertyKey) (Output, error) {
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v, err := m.OutputOrErr(k, true)
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if err != nil {
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return Output{}, err
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}
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return *v, nil
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}
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// OptBoolOrErr checks that the given property has the type bool, if it exists.
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func (m PropertyMap) OptBoolOrErr(k PropertyKey) (*bool, error) {
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return m.BoolOrErr(k, false)
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}
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// OptNumberOrErr checks that the given property has the type float64, if it exists.
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func (m PropertyMap) OptNumberOrErr(k PropertyKey) (*float64, error) {
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return m.NumberOrErr(k, false)
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}
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// OptStringOrErr checks that the given property has the type string, if it exists.
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func (m PropertyMap) OptStringOrErr(k PropertyKey) (*string, error) {
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return m.StringOrErr(k, false)
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}
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// OptArrayOrErr checks that the given property has the type array, if it exists.
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func (m PropertyMap) OptArrayOrErr(k PropertyKey) (*[]PropertyValue, error) {
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return m.ArrayOrErr(k, false)
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}
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// OptObjectArrayOrErr checks that the given property has the type array of objects, if it exists.
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func (m PropertyMap) OptObjectArrayOrErr(k PropertyKey) (*[]PropertyMap, error) {
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return m.ObjectArrayOrErr(k, false)
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}
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// OptStringArrayOrErr checks that the given property has the type array of objects, if it exists.
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func (m PropertyMap) OptStringArrayOrErr(k PropertyKey) (*[]string, error) {
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return m.StringArrayOrErr(k, false)
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}
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// OptObjectOrErr checks that the given property has the type object, if it exists.
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func (m PropertyMap) OptObjectOrErr(k PropertyKey) (*PropertyMap, error) {
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return m.ObjectOrErr(k, false)
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}
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// OptComputedOrErr checks that the given property is computed, if it exists.
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func (m PropertyMap) OptComputedOrErr(k PropertyKey) (*Computed, error) {
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return m.ComputedOrErr(k, false)
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}
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// OptOutputOrErr checks that the given property is an output property, if it exists.
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func (m PropertyMap) OptOutputOrErr(k PropertyKey) (*Output, error) {
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return m.OutputOrErr(k, false)
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}
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// HasValue returns true if the slot associated with the given property key contains a real value. It returns false
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// if a value is null or an output property that is awaiting a value to be assigned. That is to say, HasValue indicates
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// a semantically meaningful value is present (even if it's a computed one whose concrete value isn't yet evaluated).
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func (m PropertyMap) HasValue(k PropertyKey) bool {
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v, has := m[k]
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return has && v.HasValue()
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}
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// Mappable returns a mapper-compatible object map, suitable for deserialization into structures.
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func (m PropertyMap) Mappable() map[string]interface{} {
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obj := make(map[string]interface{})
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for _, k := range m.StableKeys() {
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obj[string(k)] = m[k].Mappable()
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}
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return obj
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}
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// StableKeys returns all of the map's keys in a stable order.
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func (m PropertyMap) StableKeys() []PropertyKey {
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sorted := make([]PropertyKey, 0, len(m))
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for k := range m {
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sorted = append(sorted, k)
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}
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sort.Slice(sorted, func(i, j int) bool { return sorted[i] < sorted[j] })
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return sorted
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}
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func (m PropertyMap) ShallowClone() PropertyMap {
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copy := make(PropertyMap)
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m.ShallowCloneInto(copy)
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return copy
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}
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func (m PropertyMap) ShallowCloneInto(other PropertyMap) {
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for k, v := range m {
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other[k] = v
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}
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}
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func (s PropertySet) ShallowClone() PropertySet {
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copy := make(PropertySet)
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for k, v := range s {
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copy[k] = v
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}
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return copy
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}
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func NewNullProperty() PropertyValue { return PropertyValue{nil} }
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func NewBoolProperty(v bool) PropertyValue { return PropertyValue{v} }
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func NewNumberProperty(v float64) PropertyValue { return PropertyValue{v} }
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func NewStringProperty(v string) PropertyValue { return PropertyValue{v} }
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func NewArrayProperty(v []PropertyValue) PropertyValue { return PropertyValue{v} }
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func NewObjectProperty(v PropertyMap) PropertyValue { return PropertyValue{v} }
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func NewComputedProperty(v Computed) PropertyValue { return PropertyValue{v} }
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func NewOutputProperty(v Output) PropertyValue { return PropertyValue{v} }
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func MakeComputed(v PropertyValue) PropertyValue {
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return NewComputedProperty(Computed{Element: v})
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}
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func MakeOutput(v PropertyValue) PropertyValue {
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return NewOutputProperty(Output{Element: v})
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}
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// NewPropertyValue turns a value into a property value, provided it is of a legal "JSON-like" kind.
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func NewPropertyValue(v interface{}) PropertyValue {
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// If nil, easy peasy, just return a null.
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if v == nil {
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return NewNullProperty()
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}
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// Else, check for some known primitive types.
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switch t := v.(type) {
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case bool:
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return NewBoolProperty(t)
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case float64:
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return NewNumberProperty(t)
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case string:
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return NewStringProperty(t)
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case Computed:
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return NewComputedProperty(t)
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}
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// Next, see if it's an array, slice, pointer or struct, and handle each accordingly.
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rv := reflect.ValueOf(v)
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switch rk := rv.Type().Kind(); rk {
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case reflect.Array, reflect.Slice:
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// If an array or slice, just create an array out of it.
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var arr []PropertyValue
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for i := 0; i < rv.Len(); i++ {
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elem := rv.Index(i)
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arr = append(arr, NewPropertyValue(elem.Interface()))
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}
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return NewArrayProperty(arr)
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case reflect.Ptr:
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// If a pointer, recurse and return the underlying value.
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if rv.IsNil() {
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return NewNullProperty()
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}
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return NewPropertyValue(rv.Elem().Interface())
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case reflect.Map:
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// If a map, create a new property map, provided the keys and values are okay.
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obj := PropertyMap{}
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for _, key := range rv.MapKeys() {
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var pk PropertyKey
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switch k := key.Interface().(type) {
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case string:
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pk = PropertyKey(k)
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case PropertyKey:
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pk = k
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default:
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contract.Failf("Unrecognized PropertyMap key type: %v", reflect.TypeOf(key))
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}
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val := rv.MapIndex(key)
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pv := NewPropertyValue(val.Interface())
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obj[pk] = pv
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}
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return NewObjectProperty(obj)
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case reflect.Struct:
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obj := NewPropertyMap(v)
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return NewObjectProperty(obj)
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default:
|
|
contract.Failf("Unrecognized value type: type=%v kind=%v", rv.Type(), rk)
|
|
}
|
|
|
|
return NewNullProperty()
|
|
}
|
|
|
|
// BoolValue fetches the underlying bool value (panicking if it isn't a bool).
|
|
func (v PropertyValue) BoolValue() bool { return v.V.(bool) }
|
|
|
|
// NumberValue fetches the underlying number value (panicking if it isn't a number).
|
|
func (v PropertyValue) NumberValue() float64 { return v.V.(float64) }
|
|
|
|
// StringValue fetches the underlying string value (panicking if it isn't a string).
|
|
func (v PropertyValue) StringValue() string { return v.V.(string) }
|
|
|
|
// ArrayValue fetches the underlying array value (panicking if it isn't a array).
|
|
func (v PropertyValue) ArrayValue() []PropertyValue { return v.V.([]PropertyValue) }
|
|
|
|
// ObjectValue fetches the underlying object value (panicking if it isn't a object).
|
|
func (v PropertyValue) ObjectValue() PropertyMap { return v.V.(PropertyMap) }
|
|
|
|
// ComputedValue fetches the underlying computed value (panicking if it isn't a computed).
|
|
func (v PropertyValue) ComputedValue() Computed { return v.V.(Computed) }
|
|
|
|
// OutputValue fetches the underlying output value (panicking if it isn't a output).
|
|
func (v PropertyValue) OutputValue() Output { return v.V.(Output) }
|
|
|
|
// IsNull returns true if the underlying value is a null.
|
|
func (v PropertyValue) IsNull() bool {
|
|
return v.V == nil
|
|
}
|
|
|
|
// IsBool returns true if the underlying value is a bool.
|
|
func (v PropertyValue) IsBool() bool {
|
|
_, is := v.V.(bool)
|
|
return is
|
|
}
|
|
|
|
// IsNumber returns true if the underlying value is a number.
|
|
func (v PropertyValue) IsNumber() bool {
|
|
_, is := v.V.(float64)
|
|
return is
|
|
}
|
|
|
|
// IsString returns true if the underlying value is a string.
|
|
func (v PropertyValue) IsString() bool {
|
|
_, is := v.V.(string)
|
|
return is
|
|
}
|
|
|
|
// IsArray returns true if the underlying value is an array.
|
|
func (v PropertyValue) IsArray() bool {
|
|
_, is := v.V.([]PropertyValue)
|
|
return is
|
|
}
|
|
|
|
// IsObject returns true if the underlying value is an object.
|
|
func (v PropertyValue) IsObject() bool {
|
|
_, is := v.V.(PropertyMap)
|
|
return is
|
|
}
|
|
|
|
// IsComputed returns true if the underlying value is a computed value.
|
|
func (v PropertyValue) IsComputed() bool {
|
|
_, is := v.V.(Computed)
|
|
return is
|
|
}
|
|
|
|
// IsOutput returns true if the underlying value is an output value.
|
|
func (v PropertyValue) IsOutput() bool {
|
|
_, is := v.V.(Output)
|
|
return is
|
|
}
|
|
|
|
// CanNull returns true if the target property is capable of holding a null value.
|
|
func (v PropertyValue) CanNull() bool {
|
|
return true // all properties can be null
|
|
}
|
|
|
|
// CanBool returns true if the target property is capable of holding a bool value.
|
|
func (v PropertyValue) CanBool() bool {
|
|
if v.IsNull() || v.IsBool() {
|
|
return true
|
|
}
|
|
if v.IsComputed() {
|
|
return v.ComputedValue().Element.CanBool()
|
|
}
|
|
if v.IsOutput() {
|
|
return v.OutputValue().Element.CanBool()
|
|
}
|
|
return false
|
|
}
|
|
|
|
// CanNumber returns true if the target property is capable of holding a number value.
|
|
func (v PropertyValue) CanNumber() bool {
|
|
if v.IsNull() || v.IsNumber() {
|
|
return true
|
|
}
|
|
if v.IsComputed() {
|
|
return v.ComputedValue().Element.CanNumber()
|
|
}
|
|
if v.IsOutput() {
|
|
return v.OutputValue().Element.CanNumber()
|
|
}
|
|
return false
|
|
}
|
|
|
|
// CanString returns true if the target property is capable of holding a string value.
|
|
func (v PropertyValue) CanString() bool {
|
|
if v.IsNull() || v.IsString() {
|
|
return true
|
|
}
|
|
if v.IsComputed() {
|
|
return v.ComputedValue().Element.CanString()
|
|
}
|
|
if v.IsOutput() {
|
|
return v.OutputValue().Element.CanString()
|
|
}
|
|
return false
|
|
}
|
|
|
|
// CanArray returns true if the target property is capable of holding an array value.
|
|
func (v PropertyValue) CanArray() bool {
|
|
if v.IsNull() || v.IsArray() {
|
|
return true
|
|
}
|
|
if v.IsComputed() {
|
|
return v.ComputedValue().Element.CanArray()
|
|
}
|
|
if v.IsOutput() {
|
|
return v.OutputValue().Element.CanArray()
|
|
}
|
|
return false
|
|
}
|
|
|
|
// CanObject returns true if the target property is capable of holding an object value.
|
|
func (v PropertyValue) CanObject() bool {
|
|
if v.IsNull() || v.IsObject() {
|
|
return true
|
|
}
|
|
if v.IsComputed() {
|
|
return v.ComputedValue().Element.CanObject()
|
|
}
|
|
if v.IsOutput() {
|
|
return v.OutputValue().Element.CanObject()
|
|
}
|
|
return false
|
|
}
|
|
|
|
// HasValue returns true if a value is semantically meaningful.
|
|
func (v PropertyValue) HasValue() bool {
|
|
return !v.IsNull() && !v.IsOutput()
|
|
}
|
|
|
|
// TypeString returns a type representation of the property value's holder type.
|
|
func (v PropertyValue) TypeString() string {
|
|
if v.IsNull() {
|
|
return "null"
|
|
} else if v.IsBool() {
|
|
return "bool"
|
|
} else if v.IsNumber() {
|
|
return "number"
|
|
} else if v.IsString() {
|
|
return "string"
|
|
} else if v.IsArray() {
|
|
return "[]"
|
|
} else if v.IsObject() {
|
|
return "object"
|
|
} else if v.IsComputed() {
|
|
return "computed<" + v.ComputedValue().Element.TypeString() + ">"
|
|
} else if v.IsOutput() {
|
|
return "output<" + v.OutputValue().Element.TypeString() + ">"
|
|
}
|
|
contract.Failf("Unrecognized PropertyValue type")
|
|
return ""
|
|
}
|
|
|
|
// Mappable returns a mapper-compatible value, suitable for deserialization into structures.
|
|
func (v PropertyValue) Mappable() interface{} {
|
|
if v.IsNull() {
|
|
return nil
|
|
} else if v.IsBool() {
|
|
return v.BoolValue()
|
|
} else if v.IsNumber() {
|
|
return v.NumberValue()
|
|
} else if v.IsString() {
|
|
return v.StringValue()
|
|
} else if v.IsArray() {
|
|
var arr []interface{}
|
|
for _, e := range v.ArrayValue() {
|
|
arr = append(arr, e.Mappable())
|
|
}
|
|
return arr
|
|
}
|
|
contract.Assert(v.IsObject())
|
|
return v.ObjectValue().Mappable()
|
|
}
|
|
|
|
// String implements the fmt.Stringer interface to add slightly more information to the output.
|
|
func (v PropertyValue) String() string {
|
|
if v.IsComputed() || v.IsOutput() {
|
|
// For computed and output properties, show their type followed by an empty object string.
|
|
return fmt.Sprintf("%v{}", v.TypeString())
|
|
}
|
|
// For all others, just display the underlying property value.
|
|
return fmt.Sprintf("{%v}", v.V)
|
|
}
|