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use {Hash, Token, Bytes, Result, TopicFilter};
/// Common filtering functions that are available for any event.
pub trait LogFilter {
/// Match any log parameters.
fn wildcard_filter(&self) -> TopicFilter;
}
/// trait common to things (events) that have an associated `Log` type
/// that can be parsed from a `RawLog`
pub trait ParseLog {
/// the associated `Log` type that can be parsed from a `RawLog`
/// by calling `parse_log`
type Log;
/// parse the associated `Log` type from a `RawLog`
fn parse_log(&self, log: RawLog) -> Result<Self::Log>;
}
/// Sophon log.
#[derive(Debug, PartialEq)]
pub struct RawLog {
/// Indexed event params are represented as log topics.
pub topics: Vec<Hash>,
/// Others are just plain data.
pub data: Bytes,
}
impl From<(Vec<Hash>, Bytes)> for RawLog {
fn from(raw: (Vec<Hash>, Bytes)) -> Self {
RawLog {
topics: raw.0,
data: raw.1,
}
}
}
/// Decoded log param.
#[derive(Debug, PartialEq)]
pub struct LogParam {
/// Decoded log name.
pub name: String,
/// Decoded log value.
pub value: Token,
}
/// Decoded log.
#[derive(Debug, PartialEq)]
pub struct Log {
/// Log params.
pub params: Vec<LogParam>,
}