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// SPDX-License-Identifier: LGPL-3.0-or-later
//! Dumping the file content.
#[cfg(feature = "dump")]
use std::collections::HashMap;
pub trait DumpFile {
#[cfg(feature = "dump")]
fn dump_file(&self, out: &mut dyn std::io::Write);
}
#[macro_export]
macro_rules! dumpfile_impl {
( $t:ty ) => {
impl $crate::dump::DumpFile for $t {
#[cfg(feature = "dump")]
fn dump_file(&self, out: &mut dyn std::io::Write) {
self.write_dump(out, 0);
}
}
};
}
/// Trait to dump a container.
// XXX invert the default methods
pub trait Dump {
#[cfg(feature = "dump")]
/// Print dump the container as `indent`
fn write_dump<W>(&self, out: &mut W, indent: u32)
where
W: std::io::Write + ?Sized;
#[cfg(feature = "dump")]
/// Pass args to the print_dump
fn write_dump_with_args<W>(&self, out: &mut W, indent: u32, _args: HashMap<&str, String>)
where
W: std::io::Write + ?Sized,
{
self.write_dump(out, indent);
}
}
#[cfg(feature = "dump")]
pub fn dump_indent(indent: u32) -> String {
let mut s = String::with_capacity(indent as usize);
for _ in 0..indent {
s.push(' ');
s.push(' ');
}
s
}
#[macro_export]
macro_rules! dump_writeln {
( $out:expr, $indent:expr, $( $x:expr ),* ) => {
{
$out.write_all(&$crate::dump::dump_indent( $indent ).into_bytes()).unwrap();
writeln!($out, $( $x ),*).unwrap();
}
};
}
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