103 lines
2.7 KiB
Rust
103 lines
2.7 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Spec builtin deserialization.
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use uint::Uint;
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/// Linear pricing.
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#[derive(Debug, PartialEq, Deserialize, Clone)]
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pub struct Linear {
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/// Base price.
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pub base: usize,
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/// Price for word.
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pub word: usize,
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}
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/// Pricing for modular exponentiation.
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#[derive(Debug, PartialEq, Deserialize, Clone)]
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pub struct Modexp {
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/// Price divisor.
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pub divisor: usize,
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}
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/// Pricing for alt_bn128_pairing.
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#[derive(Debug, PartialEq, Deserialize, Clone)]
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pub struct AltBn128Pairing {
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/// Base price.
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pub base: usize,
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/// Price per point pair.
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pub pair: usize,
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}
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/// Pricing variants.
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#[derive(Debug, PartialEq, Deserialize, Clone)]
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pub enum Pricing {
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/// Linear pricing.
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#[serde(rename="linear")]
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Linear(Linear),
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/// Pricing for modular exponentiation.
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#[serde(rename="modexp")]
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Modexp(Modexp),
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/// Pricing for alt_bn128_pairing exponentiation.
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#[serde(rename="alt_bn128_pairing")]
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AltBn128Pairing(AltBn128Pairing),
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}
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/// Spec builtin.
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#[derive(Debug, PartialEq, Deserialize, Clone)]
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pub struct Builtin {
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/// Builtin name.
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pub name: String,
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/// Builtin pricing.
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pub pricing: Pricing,
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/// Activation block.
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pub activate_at: Option<Uint>,
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}
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#[cfg(test)]
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mod tests {
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use serde_json;
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use spec::builtin::{Builtin, Pricing, Linear, Modexp};
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use uint::Uint;
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#[test]
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fn builtin_deserialization() {
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let s = r#"{
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"name": "ecrecover",
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"pricing": { "linear": { "base": 3000, "word": 0 } }
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}"#;
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let deserialized: Builtin = serde_json::from_str(s).unwrap();
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assert_eq!(deserialized.name, "ecrecover");
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assert_eq!(deserialized.pricing, Pricing::Linear(Linear { base: 3000, word: 0 }));
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assert!(deserialized.activate_at.is_none());
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}
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#[test]
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fn activate_at() {
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let s = r#"{
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"name": "late_start",
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"activate_at": 100000,
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"pricing": { "modexp": { "divisor": 5 } }
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}"#;
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let deserialized: Builtin = serde_json::from_str(s).unwrap();
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assert_eq!(deserialized.name, "late_start");
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assert_eq!(deserialized.pricing, Pricing::Modexp(Modexp { divisor: 5 }));
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assert_eq!(deserialized.activate_at, Some(Uint(100000.into())));
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}
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}
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