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Storage tracing (#3614)

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* Storage tracing

* Whitepsaces

Co-Authored-By: Sergei Pepyakin <sergei@parity.io>

* Apply suggestions from code review

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* Update Cargo.lock
This commit is contained in:
Arkadiy Paronyan
2019-09-17 20:42:15 +02:00
committed by GitHub
parent 2b040fe983
commit a07e567fe1
12 changed files with 223 additions and 41 deletions
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substrate/core/primitives/src/hexdisplay.rs
+15 -6
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@@ -21,28 +21,37 @@ pub struct HexDisplay<'a>(&'a [u8]);
impl<'a> HexDisplay<'a> {
/// Create new instance that will display `d` as a hex string when displayed.
pub fn from(d: &'a dyn AsBytesRef) -> Self { HexDisplay(d.as_bytes_ref()) }
pub fn from<R: AsBytesRef>(d: &'a R) -> Self { HexDisplay(d.as_bytes_ref()) }
}
impl<'a> ::core::fmt::Display for HexDisplay<'a> {
fn fmt(&self, fmtr: &mut ::core::fmt::Formatter) -> Result<(), ::core::fmt::Error> {
fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
if self.0.len() < 1027 {
for byte in self.0 {
fmtr.write_fmt(format_args!("{:02x}", byte))?;
f.write_fmt(format_args!("{:02x}", byte))?;
}
} else {
for byte in &self.0[0..512] {
fmtr.write_fmt(format_args!("{:02x}", byte))?;
f.write_fmt(format_args!("{:02x}", byte))?;
}
fmtr.write_str("...")?;
f.write_str("...")?;
for byte in &self.0[self.0.len() - 512..] {
fmtr.write_fmt(format_args!("{:02x}", byte))?;
f.write_fmt(format_args!("{:02x}", byte))?;
}
}
Ok(())
}
}
impl<'a> core::fmt::Debug for HexDisplay<'a> {
fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
for byte in self.0 {
f.write_fmt(format_args!("{:02x}", byte))?;
}
Ok(())
}
}
/// Simple trait to transform various types to `&[u8]`
pub trait AsBytesRef {
/// Transform `self` into `&[u8]`.