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|
use std::{
io::{self, Write},
str,
};
use crate::{config::OutFormat, lint::LintResult};
use ariadne::{
CharSet, Color, Config as CliConfig, Fmt, Label, LabelAttach, Report as CliReport,
ReportKind as CliReportKind, Source,
};
use rnix::TextRange;
use vfs::ReadOnlyVfs;
pub trait WriteDiagnostic {
fn write(
&mut self,
report: &LintResult,
vfs: &ReadOnlyVfs,
format: OutFormat,
) -> io::Result<()>;
}
impl<T> WriteDiagnostic for T
where
T: Write,
{
fn write(
&mut self,
lint_result: &LintResult,
vfs: &ReadOnlyVfs,
format: OutFormat,
) -> io::Result<()> {
match format {
OutFormat::StdErr => write_stderr(self, lint_result, vfs),
OutFormat::Errfmt => write_errfmt(self, lint_result, vfs),
_ => Ok(()),
}
}
}
fn write_stderr<T: Write>(
writer: &mut T,
lint_result: &LintResult,
vfs: &ReadOnlyVfs,
) -> io::Result<()> {
let file_id = lint_result.file_id;
let src = str::from_utf8(vfs.get(file_id)).unwrap();
let path = vfs.file_path(file_id);
let range = |at: TextRange| at.start().into()..at.end().into();
let src_id = path.to_str().unwrap_or("<unknown>");
for report in lint_result.reports.iter() {
let offset = report
.diagnostics
.iter()
.map(|d| d.at.start().into())
.min()
.unwrap_or(0usize);
report
.diagnostics
.iter()
.fold(
CliReport::build(CliReportKind::Warning, src_id, offset)
.with_config(
CliConfig::default()
.with_cross_gap(true)
.with_multiline_arrows(false)
.with_label_attach(LabelAttach::Middle)
.with_char_set(CharSet::Unicode),
)
.with_message(report.note)
.with_code(report.code),
|cli_report, diagnostic| {
cli_report.with_label(
Label::new((src_id, range(diagnostic.at)))
.with_message(&colorize(&diagnostic.message))
.with_color(Color::Magenta),
)
},
)
.finish()
.write((src_id, Source::from(src)), &mut *writer)?;
}
Ok(())
}
fn write_errfmt<T: Write>(writer: &mut T, lint_result: &LintResult, vfs: &ReadOnlyVfs) -> io::Result<()> {
let file_id = lint_result.file_id;
let src = str::from_utf8(vfs.get(file_id)).unwrap();
let path = vfs.file_path(file_id);
for report in lint_result.reports.iter() {
for diagnostic in report.diagnostics.iter() {
let line = line(diagnostic.at, &src);
let col = column(diagnostic.at, &src);
writeln!(
writer,
"{filename}>{linenumber}:{columnnumber}:{errortype}:{errornumber}:{errormessage}",
filename = path.to_str().unwrap_or("<unknown>"),
linenumber = line,
columnnumber = col,
errortype = "W",
errornumber = report.code,
errormessage = diagnostic.message
)?;
}
}
Ok(())
}
fn line(at: TextRange, src: &str) -> usize {
let at = at.start().into();
src[..at].chars().filter(|&c| c == '\n').count() + 1
}
fn column(at: TextRange, src: &str) -> usize {
let at = at.start().into();
src[..at].rfind('\n').map(|c| at - c).unwrap_or(at + 1)
}
// everything within backticks is colorized, backticks are removed
fn colorize(message: &str) -> String {
message
.split('`')
.enumerate()
.map(|(idx, part)| {
if idx % 2 == 1 {
part.fg(Color::Cyan).to_string()
} else {
part.to_string()
}
})
.collect::<Vec<_>>()
.join("")
}
|
