v0.3.0

BREAKING CHANGES:

• Previously, tftypes.NewValue would panic if the Go type supplied wasn't a valid Go type for any tftypes.Type. Now tftypes.NewValue will panic if the Go type supplied isn't a valid Go type for the specific tftypes.Type supplied. (#67)
• Removed support for *float32 (and float32, which was only documented and never implemented) when creating a tftypes.Number using tftypes.NewValue. We can't find a lossless way to convert a float32 to a *big.Float and so require provider developers to choose the lossy conversion they find acceptable. (#67)
• Removed the now-unnecessary tftypes.ValueComparer helper, which helped github.com/google/go-cmp compare tftypes.Values. tftypes.Values now have an Equal method that go-cmp can use, and don't need any special options passed anymore. (#67)
• The tftypes package has been moved to the root of the module and is no longer under the tfprotov5 package. Providers can automatically rewrite their import paths using a command like sed -i 's/"github.com\/hashicorp\/terraform-plugin-go\/tfprotov5\/tftypes"/"github.com\/hashicorp\/terraform-plugin-go\/tftypes"/g' **/*.go on Unix-like systems. (#70)
• With the release of Go 1.16, Go 1.15 is now the lowest supported version of Go to use with terraform-plugin-go. (#62)
• tftypes.AttributePath is now referenced as a pointer instead of a value pretty much everywhere it is used. This enables much more ergonomic use with tfprotov5.Diagnostic values. (#68)
• tftypes.AttributePath's Steps property is now internal-only. Use tftypes.AttributePath.Steps() to access the list of tftypes.AttributePathSteps, and tftypes.NewAttributePath or tftypes.NewAttributePathWithSteps to create a new tftypes.AttributePath. (#68)
• tftypes.String, tftypes.Number, tftypes.Bool, and tftypes.DynamicPseudoType are now represented by a different Go type. Uses of == and switch on them will no longer work. The recommended way to compare any type is using Is. (#58)
• tftypes.Values no longer have an Is method. Use tftypes.Value.Type().Is instead. (#58)
• tftypes.AttributePath.WithAttributeName, WithElementKeyString, WithElementKeyInt, and WithElementKeyValue no longer accept pointers and mutate the AttributePath. They now copy the AttributePath, and return a version of it with the new AttributePathStep appended. (#60)

FEATURES:

• Added tftypes.Diff function to return the elements and attributes that are different between two tftypes.Values. (#60)
• Added tftypes.Walk and tftypes.Transform functions for the tftypes.Value type, allowing providers to traverse and mutate a tftypes.Value, respectively. (#60)
• tftypes.Values now have a Type method, exposing their tftypes.Type. (#58)

ENHANCEMENTS:

• A number of methods in tftypes are benefitting from a better error message for tftypes.AttributePathErrors, which are returned in various places, and will now surface the path associated with the error as part of the error message. (#68)
• Added Equal method to tftypes.Type implementations, allowing them to be compared using github.com/google/go-cmp. (#74)
• Added a Copy method to tftypes.Value, returning a clone of the tftypes.Value such that modifying the clone is guaranteed to not modify the original. (#60)
• Added a String method to tftypes.AttributePath to return a string representation of the tftypes.AttributePath. (#60)
• Added a String method to tftypes.Value, returning a string representation of the tftypes.Value. (#60)
• Added a tftypes.ValidateValue function that returns an error if the combination of the tftypes.Type and Go type passed when panic when passed to tftypes.NewValue. (#67)
• Added an Equal method to tftypes.AttributePath to compares two tftypes.AttributePaths. (#60)
• Added an Equal method to tftypes.Value to compare two tftypes.Values. (#60)
• Added support for OptionalAttributes to tftypes.Objects, allowing for objects with attributes that can be set or can be omitted. See https://www.terraform.io/docs/language/expressions/type-constraints.html#experimental-optional-object-type-attributes for more information on optional attributes in objects. (#74)
• Added support for uint, uint8, uint16, uint32, uint64, int, int8, int16, int32, int64, and float64 conversions when creating a tftypes.Number with tftypes.NewValue. These were mistakenly omitted previously. (#67)
• Added support for version 6 of the Terraform protocol, in a new tfprotov6 package. (#71)
• Updated the String method of all tftypes.Type implementations to include any element or attribute types in the string as well. (#60)
• tftypes.AttributePathError is now exported. Provider developers can use errors.Is and errors.As to check for tftypes.AttributePathErrors, errors.Unwrap to get to the underlying error, and the Path property on a tftypes.AttributePathError to access the tftypes.AttributePath the error is associated with. tftypes.AttributePath.NewError and tftypes.AttributePath.NewErrorf are still the supported ways to create a tftypes.AttributePathError. (#68)

BUG FIXES:

• Fixed a bug in tftypes.Value.IsFullyKnown that would cause a panic when calling IsFullyKnown on tftypes.Value with a tftypes.Type of Map, Object, List, Set, or Tuple if the tftypes.Value was null. (#69)
• Fixed a bug where *uint8, *uint16, and *uint32 would be coerced to int64s as part of their conversion in tftypes.NewValue. This may have had no impact, as all those types can be represented in an int64, but to be sure our conversion is accurate, the conversion was fixed to convert them to a uint64 instead. (#67)

v0.2.1

BUG FIXES:

• Fixed a bug that could cause a crash when a provider was prematurely stopped. (#49)

v0.2.0

ENHANCEMENTS:

• tftypes.NewValue can now accept a wider array of standard library types which will be automatically converted to their standard representation (#46] [#47)
• tfprotov5.RawState now has an Unmarshal method, just like tfprotov5.DynamicValue, yielding a tftypes.Value. (#42)

v0.1.0

Initial release.