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Roadmap

Shipped

Lexer, parser and Puppet::Pops AST; the evaluator (scopes, expressions, data-type checks via go-pcore, class/defined-type instantiation, iteration, a built-in function set, lookup() via go-hiera, facts via go-facter); and the catalog compiler (resource graph + containment/relationship/metaparameter edges, Puppet catalog JSON) — at 100% coverage, CI green across the six 64-bit Go targets, and a RegisterFunction seam for go-ruby-puppet.

Also implemented and evaluated (no fake stubs):

  • EPP / ERB templates — epp() / inline_epp() / template() / inline_template(), through an injectable template loader.
  • Resource defaults, overrides and collectors — Type { }, Type[t] { }, <| |> / <<| |>>.
  • Exported resources — collecting @@ resources through an injectable exported-resource store.
  • The extensive stdlib — string/array/hash/numeric, digests, encoding, path, time, TOML/JSON/PSON, validate_*, pw_hash, shellwords, and more.
  • The plan / apply language — Bolt-style plans (EvalPlanString, apply {}).
  • Regex match-variable capture — $1 … $n after =~.
  • The Terraform-style HCL2 front-end — hcl.Parse yields the same ast.Program, so an HCL2 manifest compiles to an identical catalog.

In progress (returns a clear error today — no fake stubs)

  • Pcore type constructors beyond the scalar core — Timestamp(), SemVer(), … currently report an "unsupported type constructor" error.
  • The HCL2 front-end's v0.2 expression set — function calls, the a ? b : c conditional, for comprehensions, %{…} template directives and additional block types report a clear "unsupported in HCL2 v0.1" error.