/
hcl.go
91 lines (77 loc) · 2.22 KB
/
hcl.go
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package hcl
import (
"context"
"fmt"
"reflect"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
)
func Marshal(ctx context.Context, v interface{}) (map[string]interface{}, error) {
result := map[string]interface{}{}
for _, handler := range evalHandlers(reflect.TypeOf(v), v) {
fieldValue, err := encoder(handler).encode(ctx)
if err != nil {
return nil, fmt.Errorf("cannot serialize field '%s': %s", handler.Field.Name, err.Error())
}
if fieldValue != emptyValue {
result[handler.Property] = fieldValue
}
}
return result, nil
}
func Unmarshal(ctx context.Context, rd ResourceData, v any) error {
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Pointer || rv.IsNil() {
return &InvalidUnmarshalError{reflect.TypeOf(v)}
}
for _, handler := range evalHandlers(reflect.TypeOf(v).Elem(), rv.Elem().Interface()) {
fieldValue, err := decoder(handler).Decode(ctx, rd, handler.Field.Type)
if err != nil {
return fmt.Errorf("cannot deserialize field '%s': %s", handler.Field.Name, err.Error())
}
if fieldValue != nil {
set(rv.Elem().FieldByIndex(handler.Field.Index), fieldValue)
}
}
return nil
}
func Schema(v interface{}) map[string]*schema.Schema {
result := map[string]*schema.Schema{}
for _, handler := range evalHandlers(reflect.TypeOf(v), v) {
fieldValue := schemer(handler).Schema()
if fieldValue != nil {
result[handler.Property] = fieldValue
}
}
return result
}
type InvalidUnmarshalError struct {
Type reflect.Type
}
func (e *InvalidUnmarshalError) Error() string {
if e.Type == nil {
return "hcl: DeSerialize(nil)"
}
if e.Type.Kind() != reflect.Pointer {
return "hcl: DeSerialize(non-pointer " + e.Type.String() + ")"
}
return "hcl: DeSerialize(nil " + e.Type.String() + ")"
}
type ResourceData interface {
GetOk(key string) (interface{}, bool)
}
type resourceData struct {
parent ResourceData
prefix string
}
func (me *resourceData) GetOk(key string) (interface{}, bool) {
return me.parent.GetOk(fmt.Sprintf("%s.%s", me.prefix, key))
}
func set(target reflect.Value, v any) {
if target.Type().Kind() == reflect.Pointer {
newTarget := reflect.New(target.Type().Elem())
set(newTarget.Elem(), v)
target.Set(newTarget)
return
}
target.Set(reflect.ValueOf(v))
}