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fixed od builting parsing

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This commit is contained in:
debris 2016-03-18 19:31:31 +01:00
parent 1c9cc6167d
commit 839cecd2da
1 changed files with 3 additions and 3 deletions
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6
ethcore/src/builtin.rs
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@ -19,7 +19,7 @@ use crypto::sha2::Sha256;
use crypto::ripemd160::Ripemd160;
use crypto::digest::Digest;
/// Definition of a contract whose implementation is built-in.
/// Definition of a contract whose implementation is built-in.
pub struct Builtin {
/// The gas cost of running this built-in for the given size of input data.
pub cost: Box<Fn(usize) -> U256>, // TODO: U256 should be bignum.
@ -63,11 +63,11 @@ impl Builtin {
/// Create a builtin from JSON.
///
/// JSON must be of the form `{ "name": "identity", "linear": {"base": 10, "word": 20} }`.
/// JSON must be of the form `{ "name": "identity", "pricing": {"base": 10, "word": 20} }`.
pub fn from_json(json: &Json) -> Option<Builtin> {
// NICE: figure out a more convenient means of handing errors here.
if let Json::String(ref name) = json["name"] {
if let Json::Object(ref o) = json["linear"] {
if let Json::Object(ref o) = json["pricing"] {
if let Json::U64(ref word) = o["word"] {
if let Json::U64(ref base) = o["base"] {
return Self::from_named_linear(&name[..], *base as usize, *word as usize);