355 Commits (8fd8a48a06af33d3a3614b4b48768bd1516632fe)

Author	SHA1	Message	Date
Martin Atkins	4754889950	stackruntime: Beginnings of Validate function ... This stubs out the basic structure of stackeval's equivalent of a graph walk, which is really just a recursive tree walk starting async tasks that might depend on each other via the abstractions in package "promising". This initial work is sufficient to validate the inputs to an embedded stack call when referring to input variables in the calling stack, showing that the expression evaluation model seems to be working and the use of promises to deal with dependency ordering seems viable.	2 years ago
Martin Atkins	fd4612b804	stackeval: An OpenTelemetry tracer ... This just introduces an OpenTelemetry tracer in a package-level variable but doesn't actually make use of it yet. We'll use it in subsequent commits to help with debugging how different evaluation tasks interact with one another.	2 years ago
Martin Atkins	c5930cc83d	stackeval: Ignore some unused stuff for now ... This package is currently just a stub for design exploration and discussion, so it intentionally has some unused code in it to help suggest how it might evolve in future. We'll remove these staticcheck exceptions later once we're ready to make this code "real", or possibly remove all this code altogether if we decide to take a different direction.	2 years ago
Martin Atkins	59a044dd6f	stackeval: The naming of promises ... If a stack configuration has a dependency cycle we'll tend to detect it by the promises failing to resolve due to a self-reference. Describing that situation to end-users has been historically hard in existing Terraform's dag-based implementation, and there are some similar challenges for this promise-based design too. To deal with it while minimizing runtime overhead in the happy path we'll teach the various objects to retroactively report names for the promises they've already instantiated and then only when we encounter the ErrSelfDependent error will we walk the tree of objects to find user-friendly names for all of the promises that have contributed to the results so far.	2 years ago
Martin Atkins	3d503f8e71	stackruntime: Stubbing the "interpreter" for stack configurations	2 years ago