Struct Reader

pub struct Reader<'si, R> { /* private fields */ }

The reader of a GCNO/GCDA file.

Examples

use cov::reader::Reader;
use cov::Interner;
use std::io::Read;
use std::fs::File;

let mut interner = Interner::new();
let file = File::open("test-data/trivial.clang/x.gcno")?;

// read the header.
let mut reader = Reader::new(file, &mut interner)?;
// read the content.
let _gcov = reader.parse()?;

Implementations

impl<'si, R: Read> Reader<'si, R>

pub fn new(reader: R, interner: &'si mut Interner) -> Result<Reader<'si, R>>

Parses the header of the file, and creates a new gcov reader.

Errors

• Returns UnknownFileType if the reader is not a in GCNO/GCDA format.
• Returns UnsupportedVersion if the GCNO/GCDA version is not supported by this crate.
• Returns Io on I/O failure.

pub fn parse(&mut self) -> Result<Gcov>

Parses the content of the reader, to produce a Gcov structure.

Errors

• Returns UnknownTag if the GCNO/GCDA contains an unrecognized record tag.
• Returns Io on I/O failure.

Trait Implementations

impl<'si, R: Debug> Debug for Reader<'si, R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.