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Copy pathlib.rs
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587 lines (516 loc) · 18.8 KB
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use std::path::Path;
use js_sys::Error;
use ruff_db::diagnostic;
use ruff_linter::preview::is_human_readable_names_enabled;
use ruff_linter::settings::types::PythonVersion;
use ruff_linter::suppression::Suppressions;
use serde::{Deserialize, Serialize};
use wasm_bindgen::prelude::*;
use ruff_formatter::printer::SourceMapGeneration;
use ruff_formatter::{FormatResult, Formatted, IndentStyle};
use ruff_linter::directives;
use ruff_linter::line_width::{IndentWidth, LineLength};
use ruff_linter::linter::check_path;
use ruff_linter::settings::{DEFAULT_SELECTORS, DUMMY_VARIABLE_RGX, flags};
use ruff_linter::source_kind::SourceKind;
use ruff_linter::{Locator, UnresolvedRuleSelector};
use ruff_python_ast::{Mod, PySourceType};
use ruff_python_codegen::Stylist;
use ruff_python_formatter::{PyFormatContext, QuoteStyle, format_module_ast, pretty_comments};
use ruff_python_index::Indexer;
use ruff_python_parser::{Mode, ParseOptions, Parsed, parse, parse_unchecked};
use ruff_python_trivia::TriviaRanges;
use ruff_ranged_value::{ValueSource, ValueSourceGuard};
use ruff_source_file::{OneIndexed, PositionEncoding as SourcePositionEncoding, SourceLocation};
use ruff_text_size::Ranged;
use ruff_workspace::Settings;
use ruff_workspace::configuration::Configuration;
use ruff_workspace::options::{FormatOptions, LintCommonOptions, LintOptions, Options};
#[wasm_bindgen(typescript_custom_section)]
const TYPES: &'static str = r#"
export interface Diagnostic {
code: string | null;
message: string;
tags: DiagnosticTag[];
annotations: DiagnosticAnnotation[];
subDiagnostics: SubDiagnostic[];
start_location: {
row: number;
column: number;
};
end_location: {
row: number;
column: number;
};
fix: {
message: string | null;
edits: {
content: string | null;
location: {
row: number;
column: number;
};
end_location: {
row: number;
column: number;
};
}[];
} | null;
}
export type DiagnosticTag = "unnecessary" | "deprecated";
export interface DiagnosticAnnotation {
primary: boolean;
message: string | null;
location: DiagnosticLocation | null;
}
export interface SubDiagnostic {
severity: SubDiagnosticSeverity;
message: string;
location: DiagnosticLocation | null;
}
export enum SubDiagnosticSeverity {
Help = "help",
Info = "info",
Warning = "warning",
Error = "error",
Fatal = "fatal",
}
export interface DiagnosticLocation {
path: string;
start_location: {
row: number;
column: number;
};
end_location: {
row: number;
column: number;
};
}
"#;
#[derive(Serialize, Deserialize, Eq, PartialEq, Debug)]
pub struct ExpandedMessage {
pub code: String,
pub message: String,
pub tags: Vec<ExpandedDiagnosticTag>,
pub annotations: Vec<ExpandedDiagnosticAnnotation>,
#[serde(rename = "subDiagnostics")]
pub sub_diagnostics: Vec<ExpandedSubDiagnostic>,
pub start_location: Location,
pub end_location: Location,
pub fix: Option<ExpandedFix>,
}
#[derive(Serialize, Deserialize, Eq, PartialEq, Debug)]
pub struct ExpandedDiagnosticAnnotation {
pub primary: bool,
pub message: Option<String>,
pub location: Option<ExpandedDiagnosticLocation>,
}
#[derive(Serialize, Deserialize, Eq, PartialEq, Debug)]
pub struct ExpandedSubDiagnostic {
pub severity: SubDiagnosticSeverity,
pub message: String,
pub location: Option<ExpandedDiagnosticLocation>,
}
#[derive(Serialize, Deserialize, Copy, Clone, Eq, PartialEq, Debug)]
#[serde(rename_all = "lowercase")]
pub enum SubDiagnosticSeverity {
Help,
Info,
Warning,
Error,
Fatal,
}
impl From<diagnostic::SubDiagnosticSeverity> for SubDiagnosticSeverity {
fn from(value: diagnostic::SubDiagnosticSeverity) -> Self {
match value {
diagnostic::SubDiagnosticSeverity::Help => Self::Help,
diagnostic::SubDiagnosticSeverity::Info => Self::Info,
diagnostic::SubDiagnosticSeverity::Warning => Self::Warning,
diagnostic::SubDiagnosticSeverity::Error => Self::Error,
diagnostic::SubDiagnosticSeverity::Fatal => Self::Fatal,
}
}
}
#[derive(Serialize, Deserialize, Eq, PartialEq, Debug)]
pub struct ExpandedDiagnosticLocation {
pub path: String,
pub start_location: Location,
pub end_location: Location,
}
fn expanded_diagnostic_location(
span: &diagnostic::Span,
position_encoding: SourcePositionEncoding,
) -> Option<ExpandedDiagnosticLocation> {
let source_file = span.as_ruff_file()?;
let source_code = source_file.to_source_code();
let range = span.range()?;
Some(ExpandedDiagnosticLocation {
path: source_file.name().to_string(),
start_location: source_code
.source_location(range.start(), position_encoding)
.into(),
end_location: source_code
.source_location(range.end(), position_encoding)
.into(),
})
}
#[derive(Serialize, Deserialize, Eq, PartialEq, Debug)]
pub struct ExpandedFix {
message: Option<String>,
edits: Vec<ExpandedEdit>,
}
#[derive(Serialize, Deserialize, Eq, PartialEq, Debug)]
struct ExpandedEdit {
location: Location,
end_location: Location,
content: Option<String>,
}
#[derive(Serialize, Deserialize, Copy, Clone, Eq, PartialEq, Debug)]
#[serde(rename_all = "lowercase")]
pub enum ExpandedDiagnosticTag {
Unnecessary,
Deprecated,
}
impl From<&diagnostic::DiagnosticTag> for ExpandedDiagnosticTag {
fn from(value: &diagnostic::DiagnosticTag) -> Self {
match value {
diagnostic::DiagnosticTag::Unnecessary => Self::Unnecessary,
diagnostic::DiagnosticTag::Deprecated => Self::Deprecated,
}
}
}
/// Perform global constructor initialization.
#[cfg(target_family = "wasm")]
#[expect(unsafe_code)]
pub fn before_main() {
unsafe extern "C" {
fn __wasm_call_ctors();
}
// Salsa uses the `inventory` crate, which registers global constructors that may need to be
// called explicitly on WASM. See <https://github.com/dtolnay/inventory/blob/master/src/lib.rs#L105>
// for details.
unsafe {
__wasm_call_ctors();
}
}
#[cfg(not(target_family = "wasm"))]
pub fn before_main() {}
#[wasm_bindgen(start)]
pub fn run() {
before_main();
// When the `console_error_panic_hook` feature is enabled, we can call the
// `set_panic_hook` function at least once during initialization, and then
// we will get better error messages if our code ever panics.
//
// For more details see
// https://github.com/rustwasm/console_error_panic_hook#readme
#[cfg(feature = "console_error_panic_hook")]
console_error_panic_hook::set_once();
}
/// Initializes the logger with the given log level.
///
/// ## Panics
/// If this function is called more than once.
#[wasm_bindgen(js_name = "initLogging")]
pub fn init_logging(level: LogLevel) {
console_log::init_with_level(level.into())
.expect("`initLogging` to only be called at most once.");
}
#[derive(Copy, Clone, Debug)]
#[wasm_bindgen]
pub enum LogLevel {
Trace,
Debug,
Info,
Warn,
Error,
}
impl From<LogLevel> for log::Level {
fn from(level: LogLevel) -> Self {
match level {
LogLevel::Trace => log::Level::Trace,
LogLevel::Debug => log::Level::Debug,
LogLevel::Info => log::Level::Info,
LogLevel::Warn => log::Level::Warn,
LogLevel::Error => log::Level::Error,
}
}
}
#[wasm_bindgen]
pub struct Workspace {
settings: Settings,
position_encoding: SourcePositionEncoding,
}
#[wasm_bindgen]
impl Workspace {
pub fn version() -> String {
ruff_linter::VERSION.to_string()
}
#[wasm_bindgen(constructor)]
pub fn new(options: JsValue, position_encoding: PositionEncoding) -> Result<Workspace, Error> {
let _guard = ValueSourceGuard::new(ValueSource::Cli, false);
let options: Options = serde_wasm_bindgen::from_value(options).map_err(into_error)?;
let configuration =
Configuration::from_options(options, Some(Path::new(".")), Path::new("."))
.map_err(into_error)?;
let settings = configuration
.into_settings(Path::new("."))
.map_err(into_error)?;
Ok(Workspace {
settings,
position_encoding: position_encoding.into(),
})
}
#[wasm_bindgen(js_name = defaultSettings)]
pub fn default_settings() -> Result<JsValue, Error> {
serde_wasm_bindgen::to_value(&Options {
preview: Some(false),
// Propagate defaults.
builtins: Some(Vec::default()),
line_length: Some(LineLength::default()),
indent_width: Some(IndentWidth::default()),
target_version: Some(PythonVersion::default()),
lint: Some(LintOptions {
common: LintCommonOptions {
allowed_confusables: Some(Vec::default()),
dummy_variable_rgx: Some(DUMMY_VARIABLE_RGX.as_str().to_string()),
ignore: Some(Vec::default()),
select: Some(
DEFAULT_SELECTORS
.iter()
.map(|selector| {
let (prefix, code) = selector.prefix_and_code();
UnresolvedRuleSelector::cli(format!("{prefix}{code}"))
})
.collect(),
),
extend_fixable: Some(Vec::default()),
extend_select: Some(Vec::default()),
external: Some(Vec::default()),
..LintCommonOptions::default()
},
..LintOptions::default()
}),
format: Some(FormatOptions {
indent_style: Some(IndentStyle::Space),
quote_style: Some(QuoteStyle::Double),
..FormatOptions::default()
}),
..Options::default()
})
.map_err(into_error)
}
pub fn check(&self, contents: &str) -> Result<JsValue, Error> {
let source_type = PySourceType::default();
// TODO(dhruvmanila): Support Jupyter Notebooks
let source_kind = SourceKind::Python {
code: contents.to_string(),
is_stub: source_type.is_stub(),
};
// Use the unresolved version because we don't have a file path.
let target_version = self.settings.linter.unresolved_target_version;
// Parse once.
let options =
ParseOptions::from(source_type).with_target_version(target_version.parser_version());
let parsed = parse_unchecked(source_kind.source_code(), options)
.try_into_module()
.expect("`PySourceType` always parses to a `ModModule`.");
// Map row and column locations to byte slices (lazily).
let locator = Locator::new(contents);
// Detect the current code style (lazily).
let stylist = Stylist::from_tokens(parsed.tokens(), locator.contents());
// Extra indices from the code.
let indexer = Indexer::from_tokens(parsed.tokens(), locator.contents());
// Extract the `# noqa` and `# isort: skip` directives from the source.
let directives = directives::extract_directives(
parsed.tokens(),
directives::Flags::from_settings(&self.settings.linter),
&locator,
&indexer,
);
let suppressions = Suppressions::from_tokens(
locator.contents(),
parsed.tokens(),
&indexer,
&self.settings.linter,
);
// Generate checks.
let diagnostics = check_path(
Path::new("<filename>"),
None,
&locator,
&stylist,
&indexer,
&directives,
&self.settings.linter,
flags::Noqa::Enabled,
&source_kind,
source_type,
&parsed,
target_version,
&suppressions,
);
let source_code = locator.to_source_code();
let messages: Vec<ExpandedMessage> = diagnostics
.into_iter()
.map(|msg| {
let range = msg.range().unwrap_or_default();
let annotations = msg
.annotations()
.iter()
.map(|annotation| ExpandedDiagnosticAnnotation {
primary: annotation.is_primary(),
message: annotation.get_message().map(ToOwned::to_owned),
location: expanded_diagnostic_location(
annotation.get_span(),
self.position_encoding,
),
})
.collect();
let sub_diagnostics = msg
.sub_diagnostics()
.iter()
.map(|sub_diagnostic| ExpandedSubDiagnostic {
severity: sub_diagnostic.severity().into(),
message: sub_diagnostic.concise_message().to_string(),
location: sub_diagnostic.primary_span_ref().and_then(|span| {
expanded_diagnostic_location(span, self.position_encoding)
}),
})
.collect();
let code = if (!is_human_readable_names_enabled(self.settings.linter.preview)
|| self.settings.output_prefer_rule_codes)
&& let Some(code) = msg.secondary_code()
{
code.as_str()
} else {
msg.id().as_str()
};
ExpandedMessage {
code: code.to_string(),
message: msg.concise_message().to_string(),
tags: msg
.primary_tags()
.unwrap_or_default()
.iter()
.map(ExpandedDiagnosticTag::from)
.collect(),
annotations,
sub_diagnostics,
start_location: source_code
.source_location(range.start(), self.position_encoding)
.into(),
end_location: source_code
.source_location(range.end(), self.position_encoding)
.into(),
fix: msg.fix().map(|fix| ExpandedFix {
message: msg.first_help_text().map(ToString::to_string),
edits: fix
.edits()
.iter()
.map(|edit| ExpandedEdit {
location: source_code
.source_location(edit.start(), self.position_encoding)
.into(),
end_location: source_code
.source_location(edit.end(), self.position_encoding)
.into(),
content: edit.content().map(ToString::to_string),
})
.collect(),
}),
}
})
.collect();
messages
.serialize(&serde_wasm_bindgen::Serializer::new().serialize_missing_as_null(true))
.map_err(into_error)
}
pub fn format(&self, contents: &str) -> Result<String, Error> {
let parsed = ParsedModule::from_source(contents)?;
let formatted = parsed.format(&self.settings).map_err(into_error)?;
let printed = formatted.print().map_err(into_error)?;
Ok(printed.into_code())
}
pub fn format_ir(&self, contents: &str) -> Result<String, Error> {
let parsed = ParsedModule::from_source(contents)?;
let formatted = parsed.format(&self.settings).map_err(into_error)?;
Ok(format!("{formatted}"))
}
pub fn comments(&self, contents: &str) -> Result<String, Error> {
let parsed = ParsedModule::from_source(contents)?;
let trivia_ranges = TriviaRanges::from(parsed.parsed.tokens());
let comments = pretty_comments(parsed.parsed.syntax(), &trivia_ranges, contents);
Ok(comments)
}
/// Parses the content and returns its AST
pub fn parse(&self, contents: &str) -> Result<String, Error> {
let parsed = parse_unchecked(contents, ParseOptions::from(Mode::Module));
Ok(format!("{:#?}", parsed.into_syntax()))
}
pub fn tokens(&self, contents: &str) -> Result<String, Error> {
let parsed = parse_unchecked(contents, ParseOptions::from(Mode::Module));
Ok(format!("{:#?}", parsed.tokens().as_ref()))
}
}
pub(crate) fn into_error<E: std::fmt::Display>(err: E) -> Error {
Error::new(&err.to_string())
}
struct ParsedModule<'a> {
source_code: &'a str,
parsed: Parsed<Mod>,
trivia_ranges: TriviaRanges,
}
impl<'a> ParsedModule<'a> {
fn from_source(source_code: &'a str) -> Result<Self, Error> {
let parsed = parse(source_code, ParseOptions::from(Mode::Module)).map_err(into_error)?;
let trivia_ranges = TriviaRanges::from(parsed.tokens());
Ok(Self {
source_code,
parsed,
trivia_ranges,
})
}
fn format(&self, settings: &Settings) -> FormatResult<Formatted<PyFormatContext<'_>>> {
// TODO(konstin): Add an options for py/pyi to the UI (2/2)
let options = settings
.formatter
.to_format_options(PySourceType::default(), self.source_code, None)
.with_source_map_generation(SourceMapGeneration::Enabled);
format_module_ast(&self.parsed, &self.trivia_ranges, self.source_code, options)
}
}
#[derive(Serialize, Deserialize, Eq, PartialEq, Debug)]
pub struct Location {
pub row: OneIndexed,
/// The character offset from the start of the line.
///
/// The semantic of the offset depends on the [`PositionEncoding`] used when creating
/// the [`Workspace`].
pub column: OneIndexed,
}
impl From<SourceLocation> for Location {
fn from(value: SourceLocation) -> Self {
Self {
row: value.line,
column: value.character_offset,
}
}
}
#[derive(Default, Copy, Clone)]
#[wasm_bindgen]
pub enum PositionEncoding {
#[default]
Utf8,
Utf16,
Utf32,
}
impl From<PositionEncoding> for SourcePositionEncoding {
fn from(value: PositionEncoding) -> Self {
match value {
PositionEncoding::Utf8 => Self::Utf8,
PositionEncoding::Utf16 => Self::Utf16,
PositionEncoding::Utf32 => Self::Utf32,
}
}
}