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Arguments · 9

1. #1polls
2. #2README.md
3. #3# Polls & Voting > ⚠️ **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) --- An on-chain poll and voting realm for gno.land (sapphire, gno 0.9). Anyone can create a poll with a question and a comma-separated set of options; every caller address may cast exactly one vote per poll. The realm's `Render` page lists each poll with its options, live tallies drawn as `▓░` bar charts, per-option percentages, and the total number of votes. ## Realm path `gno.land/r/REPLACE_ADDR/polls` ## Exported transactions - `CreatePoll(question string, options string) int` — create a poll. `options` is a comma-separated list (blank entries are dropped; at least 2 required). Returns the new poll's id. - `Vote(pollID int, optionIndex int)` — cast one vote for `optionIndex` on poll `pollID`. One vote per caller address per poll; a second vote aborts. Both are gno 0.9 crossing functions (first parameter `cur realm`); the caller address is read via `runtime.PreviousRealm().Address()`. ## Read path - `Render("")` — index of all polls with bar-chart tallies. - `Render("<id>")` — a single poll by id. ## Example calls ```sh # create a poll (returns its id, e.g. 0) gnokey maketx call -pkgpath "gno.land/r/REPLACE_ADDR/polls" \ -func CreatePoll -args "Best L1 for smart contracts?" -args "gno,eth,sol" \ -gas-fee 1000000ugnot -gas-wanted 2000000 -broadcast -chainid sapphire-1 mykey # vote for option index 0 on poll 0 gnokey maketx call -pkgpath "gno.land/r/REPLACE_ADDR/polls" \ -func Vote -args 0 -args 0 \ -gas-fee 1000000ugnot -gas-wanted 2000000 -broadcast -chainid sapphire-1 mykey # view results in gnoweb # https://gno.land/r/REPLACE_ADDR/polls # https://gno.land/r/REPLACE_ADDR/polls:0 ``` ## Testing ```sh gno test . ``` <!-- 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. #4gnomod.toml
5. #5module = "gno.land/r/moul/x/daily/polls/v0" gno = "0.9"
6. #6polls.gno
7. #7// Package polls is an on-chain poll / voting realm for gno.land. // // Anyone can create a poll with a question and a comma-separated list of // options. Each caller address may cast exactly one vote per poll. Render // draws every poll with its options, tallies as ▓░ bar charts, percentages // and the total vote count. package polls import ( "chain" "chain/runtime/unsafe" "strconv" "strings" "gno.land/p/nt/avl/v0" ) // Poll is a single question with its options and per-address vote tracking. type Poll struct { ID int Question string Options []string Tallies []int Creator string // bech32 address of the poll creator voted *avl.Tree // address string -> struct{}{}, one vote per address } var ( polls []*Poll // index i holds the poll with ID i nextID int ) // CreatePoll registers a new poll. options is a comma-separated list; blank // entries are dropped. Returns the new poll's id. Crossing function: an EOA // invokes it via MsgCall; another realm via polls.CreatePoll(cross, q, opts). func CreatePoll(cur realm, question string, options string) int { creator := unsafe.PreviousRealm().Address().String() q := strings.TrimSpace(question) if q == "" { panic("question must not be empty") } opts := parseOptions(options) if len(opts) < 2 { panic("a poll needs at least 2 options") } id := nextID nextID++ p := &Poll{ ID: id, Question: q, Options: opts, Tallies: make([]int, len(opts)), Creator: creator, voted: avl.NewTree(), } polls = append(polls, p) chain.Emit("PollCreated", "id", strconv.Itoa(id), "creator", creator, "options", strconv.Itoa(len(opts)), ) return id } // Vote casts one vote for optionIndex on poll pollID. Each caller address may // vote at most once per poll. Crossing function. func Vote(cur realm, pollID int, optionIndex int) { voter := unsafe.PreviousRealm().Address().String() p := getPoll(pollID) if optionIndex < 0 || optionIndex >= len(p.Options) { panic("option index out of range") } if p.voted.Has(voter) { panic("address already voted on this poll") } p.voted.Set(voter, struct{}{}) p.Tallies[optionIndex]++ chain.Emit("Voted", "id", strconv.Itoa(pollID), "voter", voter, "option", strconv.Itoa(optionIndex), ) } // parseOptions splits a comma-separated option string, trimming whitespace and // dropping empties. Pure logic — no realm state. func parseOptions(options string) []string { var out []string for _, raw := range strings.Split(options, ",") { o := strings.TrimSpace(raw) if o != "" { out = append(out, o) } } return out } // getPoll returns the poll with the given id or panics if it does not exist. func getPoll(id int) *Poll { if id < 0 || id >= len(polls) { panic("poll not found") } return polls[id] } // PollCount returns the number of polls created so far (read-only helper). func PollCount() int { return len(polls) } const barWidth = 20 // bar renders a proportional ▓░ bar of fixed width for count out of total. func bar(count, total int) string { filled := 0 if total > 0 { filled = count * barWidth / total } if filled > barWidth { filled = barWidth } return strings.Repeat("▓", filled) + strings.Repeat("░", barWidth-filled) } // percent returns the integer percentage of count out of total. func percent(count, total int) int { if total == 0 { return 0 } return count * 100 / total } // total sums a tally slice. func total(tallies []int) int { sum := 0 for _, t := range tallies { sum += t } return sum } // renderPoll writes one poll's Markdown block into b. func renderPoll(b *strings.Builder, p *Poll) { sum := total(p.Tallies) b.WriteString("## Poll #") b.WriteString(strconv.Itoa(p.ID)) b.WriteString(": ") b.WriteString(p.Question) b.WriteString("\n\n") for i, opt := range p.Options { c := p.Tallies[i] b.WriteString("- **") b.WriteString(opt) b.WriteString("** `") b.WriteString(bar(c, sum)) b.WriteString("` ") b.WriteString(strconv.Itoa(percent(c, sum))) b.WriteString("% (") b.WriteString(strconv.Itoa(c)) if c == 1 { b.WriteString(" vote)") } else { b.WriteString(" votes)") } b.WriteString("\n") } b.WriteString("\n_Total votes: ") b.WriteString(strconv.Itoa(sum)) b.WriteString("_\n\n") } // Render produces the Markdown page for gnoweb. It is NOT a crossing function. // // - "" -> index of all polls // - "<id>" -> a single poll by id func Render(path string) string { var b strings.Builder path = strings.TrimSpace(path) if path != "" { id, err := strconv.Atoi(path) if err != nil || id < 0 || id >= len(polls) { return "# Polls\n\nPoll not found.\n" } b.WriteString("# Polls\n\n") renderPoll(&b, polls[id]) b.WriteString("[← all polls](/r/REPLACE_ADDR/polls)\n") return b.String() } b.WriteString("# Polls & Voting\n\n") if len(polls) == 0 { b.WriteString("_No polls yet. Create one with `CreatePoll(question, \"a,b,c\")`._\n") return b.String() } b.WriteString("Total polls: ") b.WriteString(strconv.Itoa(len(polls))) b.WriteString("\n\n") for _, p := range polls { renderPoll(&b, p) } return b.String() }
8. #8/gno.MemPackageType
9. #9 MPUserProd