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feat: support diagnostics without ranges #1299

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merged 4 commits into from
Jul 24, 2024
Merged

feat: support diagnostics without ranges #1299

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a2b782e
feat: ability to add diagnostic object to context
dsherret Jul 24, 2024
d096ff5
Update to support diagnostics without ranges
dsherret Jul 24, 2024
fdad251
update comment
dsherret Jul 24, 2024
b9b4934
fix dlint
dsherret Jul 24, 2024
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33 changes: 22 additions & 11 deletions examples/dlint/diagnostics.rs
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,17 +16,28 @@ pub fn display_diagnostics(

fn print_compact(diagnostics: &[LintDiagnostic]) {
for diagnostic in diagnostics {
let display_index = diagnostic
.text_info
.line_and_column_display(diagnostic.range.start);
eprintln!(
"{}: line {}, col {}, Error - {} ({})",
diagnostic.specifier,
display_index.line_number,
display_index.column_number,
diagnostic.message,
diagnostic.code
)
match &diagnostic.range {
Some(range) => {
let display_index =
range.text_info.line_and_column_display(range.range.start);
eprintln!(
"{}: line {}, col {}, Error - {} ({})",
diagnostic.specifier,
display_index.line_number,
display_index.column_number,
diagnostic.details.message,
diagnostic.details.code
)
}
None => {
eprintln!(
"{}: {} ({})",
diagnostic.specifier,
diagnostic.message(),
diagnostic.code()
)
}
}
}
}

Expand Down
140 changes: 92 additions & 48 deletions src/context.rs
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Original file line number Diff line number Diff line change
@@ -1,7 +1,9 @@
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.

use crate::control_flow::ControlFlow;
use crate::diagnostic::{LintDiagnostic, LintFix};
use crate::diagnostic::{
LintDiagnostic, LintDiagnosticDetails, LintDiagnosticRange, LintFix,
};
use crate::ignore_directives::{
parse_line_ignore_directives, CodeStatus, FileIgnoreDirective,
LineIgnoreDirective,
Expand Down Expand Up @@ -234,18 +236,20 @@ impl<'a> Context<'a> {

for diagnostic in self.diagnostics.iter().cloned() {
if let Some(f) = self.file_ignore_directive.as_mut() {
if f.check_used(&diagnostic.code) {
if f.check_used(&diagnostic.details.code) {
continue;
}
}
let Some(range) = diagnostic.range.as_ref() else {
continue;
};

let diagnostic_line =
diagnostic.text_info.line_index(diagnostic.range.start);
let diagnostic_line = range.text_info.line_index(range.range.start);
if diagnostic_line > 0 {
if let Some(l) =
self.line_ignore_directives.get_mut(&(diagnostic_line - 1))
{
if l.check_used(&diagnostic.code) {
if l.check_used(&diagnostic.details.code) {
continue;
}
}
Expand Down Expand Up @@ -290,11 +294,13 @@ impl<'a> Context<'a> {
file_ignore.codes().iter().filter(is_unused_code)
{
let d = self.create_diagnostic(
file_ignore.range(),
CODE,
format!("Ignore for code \"{}\" was not used.", unused_code),
None,
Vec::new(),
Some(self.create_diagnostic_range(file_ignore.range())),
self.create_diagnostic_details(
CODE,
format!("Ignore for code \"{}\" was not used.", unused_code),
None,
Vec::new(),
),
);
diagnostics.push(d);
}
Expand All @@ -309,11 +315,13 @@ impl<'a> Context<'a> {
line_ignore.codes().iter().filter(is_unused_code)
{
let d = self.create_diagnostic(
line_ignore.range(),
CODE,
format!("Ignore for code \"{}\" was not used.", unused_code),
None,
Vec::new(),
Some(self.create_diagnostic_range(line_ignore.range())),
self.create_diagnostic_details(
CODE,
format!("Ignore for code \"{}\" was not used.", unused_code),
None,
Vec::new(),
),
);
diagnostics.push(d);
}
Expand All @@ -337,11 +345,13 @@ impl<'a> Context<'a> {
file_ignore.codes().keys().filter(is_unknown_rule)
{
let d = self.create_diagnostic(
file_ignore.range(),
rules::ban_unknown_rule_code::CODE,
format!("Unknown rule for code \"{}\"", unknown_rule_code),
None,
Vec::new(),
Some(self.create_diagnostic_range(file_ignore.range())),
self.create_diagnostic_details(
rules::ban_unknown_rule_code::CODE,
format!("Unknown rule for code \"{}\"", unknown_rule_code),
None,
Vec::new(),
),
);
diagnostics.push(d);
}
Expand All @@ -352,11 +362,13 @@ impl<'a> Context<'a> {
line_ignore.codes().keys().filter(is_unknown_rule)
{
let d = self.create_diagnostic(
line_ignore.range(),
rules::ban_unknown_rule_code::CODE,
format!("Unknown rule for code \"{}\"", unknown_rule_code),
None,
Vec::new(),
Some(self.create_diagnostic_range(line_ignore.range())),
self.create_diagnostic_details(
rules::ban_unknown_rule_code::CODE,
format!("Unknown rule for code \"{}\"", unknown_rule_code),
None,
Vec::new(),
),
);
diagnostics.push(d);
}
Expand Down Expand Up @@ -386,14 +398,15 @@ impl<'a> Context<'a> {
code: impl ToString,
message: impl ToString,
) {
let diagnostic = self.create_diagnostic(
range,
code,
message.to_string(),
None,
Vec::new(),
self.add_diagnostic_details(
Some(self.create_diagnostic_range(range)),
self.create_diagnostic_details(
code,
message.to_string(),
None,
Vec::new(),
),
);
self.diagnostics.push(diagnostic);
}

pub fn add_diagnostic_with_hint(
Expand All @@ -403,14 +416,15 @@ impl<'a> Context<'a> {
message: impl ToString,
hint: impl ToString,
) {
let diagnostic = self.create_diagnostic(
range,
code,
message,
Some(hint.to_string()),
Vec::new(),
self.add_diagnostic_details(
Some(self.create_diagnostic_range(range)),
self.create_diagnostic_details(
code,
message,
Some(hint.to_string()),
Vec::new(),
),
);
self.diagnostics.push(diagnostic);
}

pub fn add_diagnostic_with_fixes(
Expand All @@ -421,31 +435,61 @@ impl<'a> Context<'a> {
hint: Option<String>,
fixes: Vec<LintFix>,
) {
let diagnostic = self.create_diagnostic(range, code, message, hint, fixes);
self.diagnostics.push(diagnostic);
self.add_diagnostic_details(
Some(self.create_diagnostic_range(range)),
self.create_diagnostic_details(code, message, hint, fixes),
);
}

pub fn add_diagnostic_details(
&mut self,
maybe_range: Option<LintDiagnosticRange>,
details: LintDiagnosticDetails,
) {
self
.diagnostics
.push(self.create_diagnostic(maybe_range, details));
}

pub(crate) fn create_diagnostic(
&self,
range: SourceRange,
maybe_range: Option<LintDiagnosticRange>,
details: LintDiagnosticDetails,
) -> LintDiagnostic {
LintDiagnostic {
specifier: self.specifier().clone(),
range: maybe_range,
details,
}
}

pub(crate) fn create_diagnostic_details(
&self,
code: impl ToString,
message: impl ToString,
maybe_hint: Option<String>,
fixes: Vec<LintFix>,
) -> LintDiagnostic {
LintDiagnostic {
specifier: self.specifier().clone(),
range,
text_info: self.text_info().clone(),
) -> LintDiagnosticDetails {
LintDiagnosticDetails {
message: message.to_string(),
code: code.to_string(),
hint: maybe_hint,
fixes,
custom_docs_url: None,
range_description: None,
info: vec![],
}
}

pub(crate) fn create_diagnostic_range(
&self,
range: SourceRange,
) -> LintDiagnosticRange {
LintDiagnosticRange {
range,
text_info: self.text_info().clone(),
description: None,
}
}
}

/// A struct containing a boolean value to control whether a node's children
Expand Down
67 changes: 45 additions & 22 deletions src/diagnostic.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -27,10 +27,15 @@ pub struct LintFix {
}

#[derive(Clone)]
pub struct LintDiagnostic {
pub specifier: ModuleSpecifier,
pub range: SourceRange,
pub struct LintDiagnosticRange {
pub text_info: SourceTextInfo,
pub range: SourceRange,
/// Additional information displayed beside the highlighted range.
pub description: Option<String>,
}

#[derive(Clone)]
pub struct LintDiagnosticDetails {
pub message: String,
pub code: String,
pub hint: Option<String>,
Expand All @@ -44,67 +49,85 @@ pub struct LintDiagnostic {
/// URL to the lint rule documentation. By default, the url uses the
/// code to link to lint.deno.land
pub custom_docs_url: Option<String>,
/// Additional information displayed beside the highlighted range.
pub range_description: Option<String>,
/// Displays additional information at the end of a diagnostic.
pub info: Vec<Cow<'static, str>>,
}

#[derive(Clone)]
pub struct LintDiagnostic {
pub specifier: ModuleSpecifier,
/// Optional range within the file.
///
/// Diagnostics that don't have a range mean there's something wrong with
/// the whole file.
pub range: Option<LintDiagnosticRange>,
pub details: LintDiagnosticDetails,
}
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Split this up so a context.add_diagnostic_details(...) could be added that doesn't require providing a specifier.


impl Diagnostic for LintDiagnostic {
fn level(&self) -> DiagnosticLevel {
DiagnosticLevel::Error
}

fn code(&self) -> Cow<'_, str> {
Cow::Borrowed(&self.code)
Cow::Borrowed(&self.details.code)
}

fn message(&self) -> Cow<'_, str> {
Cow::Borrowed(&self.message)
Cow::Borrowed(&self.details.message)
}

fn location(&self) -> DiagnosticLocation {
DiagnosticLocation::ModulePosition {
specifier: Cow::Borrowed(&self.specifier),
text_info: Cow::Borrowed(&self.text_info),
source_pos: DiagnosticSourcePos::SourcePos(self.range.start),
match &self.range {
Some(range) => DiagnosticLocation::ModulePosition {
specifier: Cow::Borrowed(&self.specifier),
text_info: Cow::Borrowed(&range.text_info),
source_pos: DiagnosticSourcePos::SourcePos(range.range.start),
},
None => DiagnosticLocation::Module {
specifier: Cow::Borrowed(&self.specifier),
},
}
}

fn snippet(&self) -> Option<DiagnosticSnippet<'_>> {
let range = DiagnosticSourceRange {
start: DiagnosticSourcePos::SourcePos(self.range.start),
end: DiagnosticSourcePos::SourcePos(self.range.end),
};
let range = self.range.as_ref()?;
Some(DiagnosticSnippet {
source: Cow::Borrowed(&self.text_info),
source: Cow::Borrowed(&range.text_info),
highlights: vec![DiagnosticSnippetHighlight {
range,
range: DiagnosticSourceRange {
start: DiagnosticSourcePos::SourcePos(range.range.start),
end: DiagnosticSourcePos::SourcePos(range.range.end),
},
style: DiagnosticSnippetHighlightStyle::Error,
description: self.range_description.as_deref().map(Cow::Borrowed),
description: range.description.as_deref().map(Cow::Borrowed),
}],
})
}

fn hint(&self) -> Option<Cow<'_, str>> {
self.hint.as_ref().map(|s| Cow::Borrowed(s.as_str()))
self
.details
.hint
.as_ref()
.map(|s| Cow::Borrowed(s.as_str()))
}

fn snippet_fixed(&self) -> Option<DiagnosticSnippet<'_>> {
None // todo
}

fn info(&self) -> Cow<'_, [std::borrow::Cow<'_, str>]> {
Cow::Borrowed(&self.info)
Cow::Borrowed(&self.details.info)
}

fn docs_url(&self) -> Option<Cow<'_, str>> {
if let Some(custom_docs_url) = &self.custom_docs_url {
if let Some(custom_docs_url) = &self.details.custom_docs_url {
Some(Cow::Borrowed(custom_docs_url))
} else {
Some(Cow::Owned(format!(
"https://lint.deno.land/rules/{}",
&self.code
&self.details.code
)))
}
}
Expand Down
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