Add Attribute Path for Type Validator Diagnostics

[bflad]

Module version

Pre v0.3.0 with validators support

Use-cases

Diagnostics from attr.TypeWithValidate Validate() methods should have the opportunity to return the attribute path associated with the diagnostic, to ensure the feedback is clear for practitioners and provider developers.

Attempted Solutions

Currently diagnostics must must manually re-associate the value as a string or establish a meaningful context in the diagnostic summary/detail.

Proposal

Before releasing v0.3.0, make the breaking change to add *tftypes.AttributePath to the attr.TypeWithValidate interface type Validate() method signature:

type TypeWithValidate interface {
	Type

	Validate(context.Context, tftypes.Value, *tftypes.AttributePath) []*tfprotov6.Diagnostic
}

All Validate() calling code currently has access to the *tftypes.AttributePath.

Other changes from #24 and #81 may further change this method signature.

References

Found while looking at #53 and #99.

[github-actions]

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