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subhost source realm

Package subhost is a test fixture for realm.Sub sub-identity presentation across a real package boundary. It plays tw...

Overview

Package subhost is a test fixture for realm.Sub sub-identity presentation across a real package boundary. It plays two roles:

  • Host: ActAsSub mints a sub of its OWN live cur and crosses into an observer with it.
  • Observer: Observe reads the presented identity (cur.Previous) that a caller crossed in with, and asserts unsafe.PreviousRealm parity.

Consumers:

  • gnovm/tests/files/zrealm_sub_foreign_present.gno crosses into Observe directly with a sub minted in the caller's own realm, to check cross-realm identity presentation + Subpath() through a cross.
  • gno.land/pkg/integration/testdata/subrealm_run_parity.txtar enters via MsgRun, crosses into ActAsSub, which mints a sub and crosses into Observe — the MsgRun-entry counterpart to the MsgCall-entry parity filetest zrealm_sub1.gno.

Functions 2

func ActAsSub

crossing Action 
1func ActAsSub(cur realm, subpath string)
source

ActAsSub mints a sub-identity of subhost's OWN live cur and crosses with it into Observe. Used by the MsgRun-entry parity test: the outermost entry is a `/e/<addr>/run` ephemeral, but subhost's cur is a first-class primary here, so cur.Sub is legal and the sub presents to Observe exactly as in the MsgCall path.

func Observe

crossing Action 
1func Observe(cur realm)
source

Observe reports what the immediate caller presented as its identity. The three cur.Previous() views (address, synthesized pkgpath, subpath) are the callee-side surface a sub-token must present; the two parity booleans assert unsafe.PreviousRealm() reads the SAME identity (v2 §5.4: unsafe.* must agree with cur.Previous()). prevParity is the load-bearing assertion for the identity-chain walk; curParity guards height 0.

Imports 2

  • chain stdlib
  • chain/runtime/unsafe stdlib

Source Files 2