69A0BF0712FF5D…D1E5605A7735

Arguments · 9

1. #1escrow
2. #2README.md
3. #3# Escrow > ⚠️ **Experimental — generated with no human supervision.** This realm was > produced automatically by an MCP-driven agent to exercise the gno MCP server > and tooling, and to generate test content for gno compilers, linters and > formatters. **Not audited. Not for production.** Full context & folder README: > [r/moul/x/daily](https://github.com/moul/gno-contracts/blob/main/r/moul/x/daily/README.md) --- A minimal 2-party escrow realm for gno.land (a port of the classic Solidity escrow idea, accounting only — no funds move). One party opens a deal against a counterparty with free-form terms; both parties confirm to settle it, and the creator can cancel any deal that is still open. **Realm path:** `gno.land/r/REPLACE_ADDR/escrow` ## Example calls ``` # Alice opens a deal with Bob; returns the new deal id (e.g. 0) Create(g1bob..., "swap NFT for 100 GNOT") # Each party confirms; when both have confirmed, the deal becomes "Settled" Confirm(0) # called by Alice Confirm(0) # called by Bob -> Settled # The creator may cancel while the deal is still Open Cancel(0) # called by Alice ``` ## Read (Render) - `/` — table of all deals: id, parties, state, confirmations, terms. - `/<id>` — details for a single deal (e.g. `/0`). <!-- BEGIN GNOCONTRACTS FOOTER (generated by `make readmes`; do not edit below) --> --- Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage. **Dependency graph:**  > 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md). <!-- END GNOCONTRACTS FOOTER -->
4. #4escrow.gno
5. #5package escrow import ( "chain" "chain/runtime/unsafe" "errors" "strconv" "strings" "gno.land/p/nt/avl/v0" ) // State constants for a deal's lifecycle. const ( StateOpen = "Open" StateSettled = "Settled" StateCanceled = "Canceled" ) // Deal is a 2-party escrow record. Accounting only: no funds move, // this tracks agreement and mutual confirmation between two parties. type Deal struct { ID int Creator address Counterparty address Terms string State string CreatorOK bool CounterOK bool } var ( deals = avl.NewTree() // id (string) -> *Deal nextID int ) var ( errNotFound = errors.New("escrow: deal not found") errNotParty = errors.New("escrow: caller is not a party to this deal") errNotOpen = errors.New("escrow: deal is not open") errNotCreator = errors.New("escrow: only the creator can cancel") errBadAddr = errors.New("escrow: invalid counterparty address") errSelfDeal = errors.New("escrow: counterparty must differ from creator") ) // Create opens a new escrow deal between the caller (creator) and the // given counterparty, governed by a free-form terms string. Returns the // new deal id. Panics on invalid input (cross-realm abort). func Create(cur realm, counterparty address, terms string) int { if !counterparty.IsValid() { panic(errBadAddr) } creator := unsafe.PreviousRealm().Address() if counterparty == creator { panic(errSelfDeal) } id := nextID nextID++ d := &Deal{ ID: id, Creator: creator, Counterparty: counterparty, Terms: terms, State: StateOpen, } deals.Set(strconv.Itoa(id), d) chain.Emit("Created", "id", strconv.Itoa(id), "creator", creator.String(), "counterparty", counterparty.String()) return id } // Confirm records confirmation by whichever party is calling. Once both // parties have confirmed, the deal transitions to Settled. func Confirm(cur realm, id int) { d := mustGet(id) if d.State != StateOpen { panic(errNotOpen) } caller := unsafe.PreviousRealm().Address() switch caller { case d.Creator: d.CreatorOK = true case d.Counterparty: d.CounterOK = true default: panic(errNotParty) } chain.Emit("Confirmed", "id", strconv.Itoa(id), "party", caller.String()) if d.CreatorOK && d.CounterOK { d.State = StateSettled chain.Emit("Settled", "id", strconv.Itoa(id)) } } // Cancel voids an open deal. Only the creator may cancel, and only // before the deal has settled. func Cancel(cur realm, id int) { d := mustGet(id) if d.State != StateOpen { panic(errNotOpen) } caller := unsafe.PreviousRealm().Address() if caller != d.Creator { panic(errNotCreator) } d.State = StateCanceled chain.Emit("Canceled", "id", strconv.Itoa(id)) } func mustGet(id int) *Deal { v := deals.Get(strconv.Itoa(id)) if v == nil { panic(errNotFound) } return v.(*Deal) } // Render lists all escrow deals with their parties, terms, and state. // When path is a numeric id, renders just that deal. func Render(path string) string { path = strings.TrimSpace(strings.Trim(path, "/")) if path != "" { if id, err := strconv.Atoi(path); err == nil { v := deals.Get(strconv.Itoa(id)) if v == nil { return "# Escrow\n\nDeal `" + path + "` not found.\n" } return renderOne(v.(*Deal)) } } var b strings.Builder b.WriteString("# Escrow\n\n") b.WriteString("2-party escrow deals (accounting only — no funds move).\n\n") if deals.Size() == 0 { b.WriteString("_No deals yet._\n") return b.String() } b.WriteString("| ID | Creator | Counterparty | State | Confirmations | Terms |\n") b.WriteString("|----|---------|--------------|-------|---------------|-------|\n") deals.Iterate("", "", func(_ string, v interface{}) bool { d := v.(*Deal) b.WriteString("| " + strconv.Itoa(d.ID) + " | " + short(d.Creator) + " | " + short(d.Counterparty) + " | " + d.State + " | " + confs(d) + " | " + escapePipe(d.Terms) + " |\n") return false }) return b.String() } func renderOne(d *Deal) string { var b strings.Builder b.WriteString("# Escrow Deal #" + strconv.Itoa(d.ID) + "\n\n") b.WriteString("- **State:** " + d.State + "\n") b.WriteString("- **Creator:** " + d.Creator.String() + " (" + yn(d.CreatorOK) + ")\n") b.WriteString("- **Counterparty:** " + d.Counterparty.String() + " (" + yn(d.CounterOK) + ")\n") b.WriteString("- **Terms:** " + d.Terms + "\n") return b.String() } func confs(d *Deal) string { n := 0 if d.CreatorOK { n++ } if d.CounterOK { n++ } return strconv.Itoa(n) + "/2" } func yn(b bool) string { if b { return "confirmed" } return "pending" } func short(a address) string { s := a.String() if len(s) <= 12 { return s } return s[:8] + "…" + s[len(s)-4:] } func escapePipe(s string) string { return strings.ReplaceAll(s, "|", "\\|") }
6. #6gnomod.toml
7. #7module = "gno.land/r/moul/x/daily/escrow/v0" gno = "0.9"
8. #8/gno.MemPackageType
9. #9 MPUserProd