mirror of
https://github.com/opentofu/opentofu.git
synced 2024-12-28 18:01:01 -06:00
123 lines
4.1 KiB
Go
123 lines
4.1 KiB
Go
package lang
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import (
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"fmt"
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"github.com/zclconf/go-cty/cty"
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"github.com/zclconf/go-cty/cty/function"
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"github.com/zclconf/go-cty/cty/function/stdlib"
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"github.com/hashicorp/terraform/lang/funcs"
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)
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var impureFunctions = []string{
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"bcrypt",
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"timestamp",
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"uuid",
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}
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// Functions returns the set of functions that should be used to when evaluating
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// expressions in the receiving scope.
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func (s *Scope) Functions() map[string]function.Function {
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s.funcsLock.Lock()
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if s.funcs == nil {
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// Some of our functions are just directly the cty stdlib functions.
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// Others are implemented in the subdirectory "funcs" here in this
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// repository. New functions should generally start out their lives
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// in the "funcs" directory and potentially graduate to cty stdlib
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// later if the functionality seems to be something domain-agnostic
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// that would be useful to all applications using cty functions.
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s.funcs = map[string]function.Function{
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"abs": stdlib.AbsoluteFunc,
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"basename": funcs.BasenameFunc,
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"base64decode": funcs.Base64DecodeFunc,
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"base64encode": funcs.Base64EncodeFunc,
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"base64gzip": funcs.Base64GzipFunc,
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"base64sha256": funcs.Base64Sha256Func,
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"base64sha512": funcs.Base64Sha512Func,
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"bcrypt": funcs.BcryptFunc,
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"ceil": funcs.CeilFunc,
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"chomp": funcs.ChompFunc,
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"cidrhost": funcs.CidrHostFunc,
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"cidrnetmask": funcs.CidrNetmaskFunc,
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"cidrsubnet": funcs.CidrSubnetFunc,
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"coalesce": stdlib.CoalesceFunc,
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"coalescelist": funcs.CoalesceListFunc,
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"compact": funcs.CompactFunc,
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"concat": stdlib.ConcatFunc,
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"contains": funcs.ContainsFunc,
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"csvdecode": stdlib.CSVDecodeFunc,
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"dirname": funcs.DirnameFunc,
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"distinct": funcs.DistinctFunc,
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"element": funcs.ElementFunc,
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"chunklist": funcs.ChunklistFunc,
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"file": funcs.MakeFileFunc(s.BaseDir, false),
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"filebase64": funcs.MakeFileFunc(s.BaseDir, true),
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"matchkeys": unimplFunc, // TODO
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"flatten": unimplFunc, // TODO
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"floor": funcs.FloorFunc,
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"format": stdlib.FormatFunc,
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"formatlist": stdlib.FormatListFunc,
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"indent": funcs.IndentFunc,
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"index": funcs.IndexFunc,
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"join": funcs.JoinFunc,
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"jsondecode": stdlib.JSONDecodeFunc,
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"jsonencode": stdlib.JSONEncodeFunc,
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"keys": unimplFunc, // TODO
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"length": funcs.LengthFunc,
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"list": unimplFunc, // TODO
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"log": funcs.LogFunc,
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"lookup": unimplFunc, // TODO
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"lower": stdlib.LowerFunc,
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"map": unimplFunc, // TODO
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"max": stdlib.MaxFunc,
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"md5": funcs.Md5Func,
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"merge": unimplFunc, // TODO
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"min": stdlib.MinFunc,
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"pathexpand": funcs.PathExpandFunc,
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"pow": funcs.PowFunc,
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"replace": funcs.ReplaceFunc,
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"rsadecrypt": funcs.RsaDecryptFunc,
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"sha1": funcs.Sha1Func,
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"sha256": funcs.Sha256Func,
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"sha512": funcs.Sha512Func,
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"signum": funcs.SignumFunc,
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"slice": unimplFunc, // TODO
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"sort": funcs.SortFunc,
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"split": funcs.SplitFunc,
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"substr": stdlib.SubstrFunc,
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"timestamp": funcs.TimestampFunc,
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"timeadd": funcs.TimeAddFunc,
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"title": funcs.TitleFunc,
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"transpose": unimplFunc, // TODO
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"trimspace": funcs.TrimSpaceFunc,
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"upper": stdlib.UpperFunc,
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"urlencode": funcs.URLEncodeFunc,
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"uuid": funcs.UUIDFunc,
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"values": unimplFunc, // TODO
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"zipmap": unimplFunc, // TODO
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}
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if s.PureOnly {
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// Force our few impure functions to return unknown so that we
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// can defer evaluating them until a later pass.
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for _, name := range impureFunctions {
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s.funcs[name] = function.Unpredictable(s.funcs[name])
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}
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}
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}
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s.funcsLock.Unlock()
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return s.funcs
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}
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var unimplFunc = function.New(&function.Spec{
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Type: func([]cty.Value) (cty.Type, error) {
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return cty.DynamicPseudoType, fmt.Errorf("function not yet implemented")
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},
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Impl: func([]cty.Value, cty.Type) (cty.Value, error) {
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return cty.DynamicVal, fmt.Errorf("function not yet implemented")
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},
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})
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