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refactor(cli/fmt_errors): Improve source line formatting (#4832)

This commit is contained in:
Nayeem Rahman 2020-04-20 20:39:02 +01:00 committed by GitHub
parent f72f045de5
commit ef6ee25e09
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
21 changed files with 218 additions and 271 deletions

View file

@ -6,9 +6,7 @@
// serde_json.
use crate::colors;
use crate::fmt_errors::format_maybe_source_line;
use crate::fmt_errors::format_maybe_source_name;
use crate::fmt_errors::DisplayFormatter;
use crate::fmt_errors::format_stack;
use serde_json::value::Value;
use std::error::Error;
use std::fmt;
@ -56,14 +54,14 @@ impl fmt::Display for Diagnostic {
let mut i = 0;
for item in &self.items {
if i > 0 {
writeln!(f)?;
write!(f, "\n\n")?;
}
write!(f, "{}", item.to_string())?;
i += 1;
}
if i > 1 {
write!(f, "\n\nFound {} errors.\n", i)?;
write!(f, "\n\nFound {} errors.", i)?;
}
Ok(())
@ -181,91 +179,126 @@ impl DiagnosticItem {
}
}
impl DisplayFormatter for DiagnosticItem {
fn format_category_and_code(&self) -> String {
let category = match self.category {
DiagnosticCategory::Error => {
format!("{}", colors::red_bold("error".to_string()))
}
DiagnosticCategory::Warning => "warn".to_string(),
DiagnosticCategory::Debug => "debug".to_string(),
DiagnosticCategory::Info => "info".to_string(),
_ => "".to_string(),
};
fn format_category_and_code(
category: &DiagnosticCategory,
code: i64,
) -> String {
let category = match category {
DiagnosticCategory::Error => {
format!("{}", colors::red_bold("error".to_string()))
}
DiagnosticCategory::Warning => "warn".to_string(),
DiagnosticCategory::Debug => "debug".to_string(),
DiagnosticCategory::Info => "info".to_string(),
_ => "".to_string(),
};
let code =
colors::bold(format!(" TS{}", self.code.to_string())).to_string();
let code = colors::bold(format!("TS{}", code.to_string())).to_string();
format!("{}{}: ", category, code)
format!("{} {}", category, code)
}
fn format_message(
message_chain: &Option<DiagnosticMessageChain>,
message: &str,
level: usize,
) -> String {
debug!("format_message");
if message_chain.is_none() {
return format!("{:indent$}{}", "", message, indent = level);
}
fn format_message(&self, level: usize) -> String {
debug!("format_message");
if self.message_chain.is_none() {
return format!("{:indent$}{}", "", self.message, indent = level);
}
let mut s = message_chain.clone().unwrap().format_message(level);
s.pop();
let mut s = self.message_chain.clone().unwrap().format_message(level);
s.pop();
s
}
s
/// Formats optional source, line and column numbers into a single string.
fn format_maybe_frame(
file_name: Option<String>,
line_number: Option<i64>,
column_number: Option<i64>,
) -> String {
if file_name.is_none() {
return "".to_string();
}
fn format_related_info(&self) -> String {
if self.related_information.is_none() {
return "".to_string();
}
assert!(line_number.is_some());
assert!(column_number.is_some());
let mut s = String::new();
let related_information = self.related_information.clone().unwrap();
for related_diagnostic in related_information {
let rd = &related_diagnostic;
s.push_str(&format!(
"\n{}\n\n ► {}{}\n",
rd.format_message(2),
rd.format_source_name(),
rd.format_source_line(4),
));
}
let line_number = line_number.unwrap();
let column_number = column_number.unwrap();
let file_name_c = colors::cyan(file_name.unwrap());
let line_c = colors::yellow(line_number.to_string());
let column_c = colors::yellow(column_number.to_string());
format!("{}:{}:{}", file_name_c, line_c, column_c)
}
s
fn format_maybe_related_information(
related_information: &Option<Vec<DiagnosticItem>>,
) -> String {
if related_information.is_none() {
return "".to_string();
}
fn format_source_line(&self, level: usize) -> String {
// Formatter expects 1-based line numbers, but ours are 0-based.
format_maybe_source_line(
self.source_line.clone(),
self.line_number.map(|n| n + 1),
self.start_column,
self.end_column,
match self.category {
let mut s = String::new();
let related_information = related_information.clone().unwrap();
for rd in related_information {
s.push_str("\n\n");
s.push_str(&format_stack(
match rd.category {
DiagnosticCategory::Error => true,
_ => false,
},
level,
)
format_message(&rd.message_chain, &rd.message, 0),
rd.source_line.clone(),
rd.start_column,
rd.end_column,
// Formatter expects 1-based line and column numbers, but ours are 0-based.
&[format_maybe_frame(
rd.script_resource_name.clone(),
rd.line_number.map(|n| n + 1),
rd.start_column.map(|n| n + 1),
)],
4,
));
}
fn format_source_name(&self) -> String {
// Formatter expects 1-based line and column numbers, but ours are 0-based.
format_maybe_source_name(
self.script_resource_name.clone(),
self.line_number.map(|n| n + 1),
self.start_column.map(|n| n + 1),
)
}
s
}
impl fmt::Display for DiagnosticItem {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(
f,
"{}{}\n\n► {}{}{}",
self.format_category_and_code(),
self.format_message(0),
self.format_source_name(),
self.format_source_line(0),
self.format_related_info(),
"{}",
format_stack(
match self.category {
DiagnosticCategory::Error => true,
_ => false,
},
format!(
"{}: {}",
format_category_and_code(&self.category, self.code),
format_message(&self.message_chain, &self.message, 0)
),
self.source_line.clone(),
self.start_column,
self.end_column,
// Formatter expects 1-based line and column numbers, but ours are 0-based.
&[format_maybe_frame(
self.script_resource_name.clone(),
self.line_number.map(|n| n + 1),
self.start_column.map(|n| n + 1)
)],
0
)
)?;
write!(
f,
"{}",
format_maybe_related_information(&self.related_information),
)
}
}
@ -575,14 +608,30 @@ mod tests {
#[test]
fn diagnostic_to_string1() {
let d = diagnostic1();
let expected = "error TS2322: Type \'(o: T) => { v: any; f: (x: B) => string; }[]\' is not assignable to type \'(r: B) => Value<B>[]\'.\n Types of parameters \'o\' and \'r\' are incompatible.\n Type \'B\' is not assignable to type \'T\'.\n\n► deno/tests/complex_diagnostics.ts:19:3\n\n19 values: o => [\n ~~~~~~\n\n The expected type comes from property \'values\' which is declared here on type \'SettingsInterface<B>\'\n\n ► deno/tests/complex_diagnostics.ts:7:3\n\n 7 values?: (r: T) => Array<Value<T>>;\n ~~~~~~\n\n";
let expected = "error TS2322: Type \'(o: T) => { v: any; f: (x: B) => string; }[]\' is not assignable to type \'(r: B) => Value<B>[]\'.\n Types of parameters \'o\' and \'r\' are incompatible.\n Type \'B\' is not assignable to type \'T\'.\n values: o => [\n ~~~~~~\n at deno/tests/complex_diagnostics.ts:19:3\n\n The expected type comes from property \'values\' which is declared here on type \'SettingsInterface<B>\'\n values?: (r: T) => Array<Value<T>>;\n ~~~~~~\n at deno/tests/complex_diagnostics.ts:7:3";
assert_eq!(expected, strip_ansi_codes(&d.to_string()));
}
#[test]
fn diagnostic_to_string2() {
let d = diagnostic2();
let expected = "error TS2322: Example 1\n\n► deno/tests/complex_diagnostics.ts:19:3\n\n19 values: o => [\n ~~~~~~\n\nerror TS2000: Example 2\n\n► /foo/bar.ts:129:3\n\n129 values: undefined,\n ~~~~~~\n\n\nFound 2 errors.\n";
let expected = "error TS2322: Example 1\n values: o => [\n ~~~~~~\n at deno/tests/complex_diagnostics.ts:19:3\n\nerror TS2000: Example 2\n values: undefined,\n ~~~~~~\n at /foo/bar.ts:129:3\n\nFound 2 errors.";
assert_eq!(expected, strip_ansi_codes(&d.to_string()));
}
#[test]
fn test_format_none_frame() {
let actual = format_maybe_frame(None, None, None);
assert_eq!(actual, "");
}
#[test]
fn test_format_some_frame() {
let actual = format_maybe_frame(
Some("file://foo/bar.ts".to_string()),
Some(1),
Some(2),
);
assert_eq!(strip_ansi_codes(&actual), "file://foo/bar.ts:1:2");
}
}

View file

@ -10,63 +10,49 @@ use std::ops::Deref;
const SOURCE_ABBREV_THRESHOLD: usize = 150;
/// A trait which specifies parts of a diagnostic like item needs to be able to
/// generate to conform its display to other diagnostic like items
pub trait DisplayFormatter {
fn format_category_and_code(&self) -> String;
fn format_message(&self, level: usize) -> String;
fn format_related_info(&self) -> String;
fn format_source_line(&self, level: usize) -> String;
fn format_source_name(&self) -> String;
}
fn format_source_name(
file_name: String,
line_number: i64,
column_number: i64,
pub fn format_stack(
is_error: bool,
message_line: String,
source_line: Option<String>,
start_column: Option<i64>,
end_column: Option<i64>,
formatted_frames: &[String],
level: usize,
) -> String {
let line_number = line_number;
let column_number = column_number;
let file_name_c = colors::cyan(file_name);
let line_c = colors::yellow(line_number.to_string());
let column_c = colors::yellow(column_number.to_string());
format!("{}:{}:{}", file_name_c, line_c, column_c)
}
/// Formats optional source, line and column numbers into a single string.
pub fn format_maybe_source_name(
file_name: Option<String>,
line_number: Option<i64>,
column_number: Option<i64>,
) -> String {
if file_name.is_none() {
return "".to_string();
let mut s = String::new();
s.push_str(&format!("{:indent$}{}", "", message_line, indent = level));
s.push_str(&format_maybe_source_line(
source_line,
start_column,
end_column,
is_error,
level,
));
for formatted_frame in formatted_frames {
s.push_str(&format!(
"\n{:indent$} at {}",
"",
formatted_frame,
indent = level
));
}
assert!(line_number.is_some());
assert!(column_number.is_some());
format_source_name(
file_name.unwrap(),
line_number.unwrap(),
column_number.unwrap(),
)
s
}
/// Take an optional source line and associated information to format it into
/// a pretty printed version of that line.
pub fn format_maybe_source_line(
fn format_maybe_source_line(
source_line: Option<String>,
line_number: Option<i64>,
start_column: Option<i64>,
end_column: Option<i64>,
is_error: bool,
level: usize,
) -> String {
if source_line.is_none() || line_number.is_none() {
if source_line.is_none() || start_column.is_none() || end_column.is_none() {
return "".to_string();
}
let source_line = source_line.as_ref().unwrap();
let source_line = source_line.unwrap();
// sometimes source_line gets set with an empty string, which then outputs
// an empty source line when displayed, so need just short circuit here.
// Also short-circuit on error line too long.
@ -76,12 +62,6 @@ pub fn format_maybe_source_line(
assert!(start_column.is_some());
assert!(end_column.is_some());
let line_number = line_number.unwrap().to_string();
let line_color = colors::black_on_white(line_number.to_string());
let line_number_len = line_number.len();
let line_padding =
colors::black_on_white(format!("{:indent$}", "", indent = line_number_len))
.to_string();
let mut s = String::new();
let start_column = start_column.unwrap();
let end_column = end_column.unwrap();
@ -107,16 +87,7 @@ pub fn format_maybe_source_line(
let indent = format!("{:indent$}", "", indent = level);
format!(
"\n\n{}{} {}\n{}{} {}\n",
indent, line_color, source_line, indent, line_padding, color_underline
)
}
/// Format a message to preface with `error: ` with ansi codes for red.
pub fn format_error_message(msg: String) -> String {
let preamble = colors::red("error:".to_string());
format!("{} {}", preamble, msg)
format!("\n{}{}\n{}{}", indent, source_line, indent, color_underline)
}
/// Wrapper around deno_core::JSError which provides color to_string.
@ -141,63 +112,44 @@ impl Deref for JSError {
}
}
impl DisplayFormatter for JSError {
fn format_category_and_code(&self) -> String {
"".to_string()
}
fn format_message(&self, _level: usize) -> String {
format!(
"{}{}",
colors::red_bold("error: ".to_string()),
self.0.message.clone()
)
}
fn format_related_info(&self) -> String {
"".to_string()
}
fn format_source_line(&self, level: usize) -> String {
format_maybe_source_line(
self.0.source_line.clone(),
self.0.line_number,
self.0.start_column,
self.0.end_column,
true,
level,
)
}
fn format_source_name(&self) -> String {
let e = &self.0;
if e.script_resource_name.is_none() {
return "".to_string();
}
format!(
"\n► {}",
format_maybe_source_name(
e.script_resource_name.clone(),
e.line_number,
e.start_column.map(|n| n + 1),
)
)
}
}
impl fmt::Display for JSError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// When the stack frame array is empty, but the source location given by
// (script_resource_name, line_number, start_column + 1) exists, this is
// likely a syntax error. For the sake of formatting we treat it like it was
// given as a single stack frame.
let formatted_frames = if self.0.formatted_frames.is_empty()
&& self.0.script_resource_name.is_some()
&& self.0.line_number.is_some()
&& self.0.start_column.is_some()
{
vec![format!(
"{}:{}:{}",
colors::cyan(self.0.script_resource_name.clone().unwrap()),
colors::yellow(self.0.line_number.unwrap().to_string()),
colors::yellow((self.0.start_column.unwrap() + 1).to_string())
)]
} else {
self.0.formatted_frames.clone()
};
write!(
f,
"{}{}{}",
self.format_message(0),
self.format_source_name(),
self.format_source_line(0),
"{}",
&format_stack(
true,
format!(
"{}: {}",
colors::red_bold("error".to_string()),
self.0.message.clone()
),
self.0.source_line.clone(),
self.0.start_column,
self.0.end_column,
&formatted_frames,
0
)
)?;
for formatted_frame in &self.0.formatted_frames {
write!(f, "\n at {}", formatted_frame)?;
}
Ok(())
}
}
@ -209,25 +161,9 @@ mod tests {
use super::*;
use crate::colors::strip_ansi_codes;
#[test]
fn test_format_none_source_name() {
let actual = format_maybe_source_name(None, None, None);
assert_eq!(actual, "");
}
#[test]
fn test_format_some_source_name() {
let actual = format_maybe_source_name(
Some("file://foo/bar.ts".to_string()),
Some(1),
Some(2),
);
assert_eq!(strip_ansi_codes(&actual), "file://foo/bar.ts:1:2");
}
#[test]
fn test_format_none_source_line() {
let actual = format_maybe_source_line(None, None, None, None, false, 0);
let actual = format_maybe_source_line(None, None, None, false, 0);
assert_eq!(actual, "");
}
@ -236,20 +172,13 @@ mod tests {
let actual = format_maybe_source_line(
Some("console.log('foo');".to_string()),
Some(8),
Some(8),
Some(11),
true,
0,
);
assert_eq!(
strip_ansi_codes(&actual),
"\n\n8 console.log(\'foo\');\n ~~~\n"
"\nconsole.log(\'foo\');\n ~~~"
);
}
#[test]
fn test_format_error_message() {
let actual = format_error_message("foo".to_string());
assert_eq!(strip_ansi_codes(&actual), "error: foo");
}
}

View file

@ -1,15 +1,21 @@
[WILDCARD]
error TS2552: Cannot find name 'consol'. Did you mean 'console'?
[WILDCARD]error TS2552: Cannot find name 'consol'. Did you mean 'console'?
consol.log("hello world!");
~~~~~~
at [WILDCARD]tests/038_checkjs.js:2:1
[WILDCARD]tests/038_checkjs.js:2:1
'console' is declared here.
declare var console: Console;
~~~~~~~
at [WILDCARD]
2 consol.log("hello world!");
[WILDCARD]
error TS2552: Cannot find name 'Foo'. Did you mean 'foo'?
const foo = new Foo();
~~~
at [WILDCARD]tests/038_checkjs.js:6:17
[WILDCARD]tests/038_checkjs.js:6:17
'foo' is declared here.
const foo = new Foo();
~~~
at [WILDCARD]tests/038_checkjs.js:6:7
6 const foo = new Foo();
[WILDCARD]
Found 2 errors.
[WILDCARD]

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@ -1,6 +1,4 @@
[WILDCARD]
error: Uncaught BadResource: Bad resource ID
[WILDCARD]dispatch_json.ts:[WILDCARD]
[WILDCARD]error: Uncaught BadResource: Bad resource ID
at unwrapResponse ([WILDCARD]dispatch_json.ts:[WILDCARD])
at Object.sendAsync ([WILDCARD]dispatch_json.ts:[WILDCARD])
at async main ([WILDCARD]tests/044_bad_resource.ts:[WILDCARD])

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@ -2,10 +2,7 @@
before error
world
error: Uncaught Error: error
[WILDCARD]tests/async_error.ts:5:9
5 throw Error("error");
^
throw Error("error");
^
at foo ([WILDCARD]tests/async_error.ts:5:9)
at [WILDCARD]tests/async_error.ts:8:1

View file

@ -1,10 +1,7 @@
[WILDCARD]Unsupported compiler options in "[WILDCARD]config.tsconfig.json"
The following options were ignored:
module, target
[WILDCARD]error TS2532: Object is possibly 'undefined'.
[WILDCARD]tests/config.ts:3:5
3 if (map.get("bar").foo) {
~~~~~~~~~~~~~~
error TS2532: Object is possibly 'undefined'.
if (map.get("bar").foo) {
~~~~~~~~~~~~~~
at [WILDCARD]tests/config.ts:3:5

View file

@ -1,9 +1,6 @@
[WILDCARD]error: Uncaught Error: bad
[WILDCARD]tests/error_001.ts:2:9
2 throw Error("bad");
^
throw Error("bad");
^
at foo ([WILDCARD]tests/error_001.ts:2:9)
at bar ([WILDCARD]tests/error_001.ts:6:3)
at [WILDCARD]tests/error_001.ts:9:1

View file

@ -1,9 +1,6 @@
[WILDCARD]error: Uncaught Error: exception from mod1
[WILDCARD]tests/subdir/mod1.ts:16:9
16 throw Error("exception from mod1");
^
throw Error("exception from mod1");
^
at throwsError ([WILDCARD]tests/subdir/mod1.ts:16:9)
at foo ([WILDCARD]tests/error_002.ts:4:3)
at [WILDCARD]tests/error_002.ts:7:1

View file

@ -1,9 +1,6 @@
[WILDCARD]error TS2322: Type '{ a: { b: { c(): { d: number; }; }; }; }' is not assignable to type '{ a: { b: { c(): { d: string; }; }; }; }'.
The types of 'a.b.c().d' are incompatible between these types.
Type 'number' is not assignable to type 'string'.
[WILDCARD]/cli/tests/error_003_typescript.ts:20:1
20 x = y;
^
x = y;
^
at [WILDCARD]/tests/error_003_typescript.ts:20:1

View file

@ -1,5 +1,4 @@
[WILDCARD]error: Uncaught NotFound: Cannot resolve module "[WILDCARD]/bad-module.ts" from "[WILDCARD]/error_004_missing_module.ts"
[WILDCARD]dispatch_json.ts:[WILDCARD]
at unwrapResponse ([WILDCARD]dispatch_json.ts:[WILDCARD])
at Object.sendAsync ([WILDCARD]dispatch_json.ts:[WILDCARD])
at async processImports ([WILDCARD]compiler/imports.ts:[WILDCARD])

View file

@ -1,5 +1,4 @@
[WILDCARD]error: Uncaught NotFound: Cannot resolve module "[WILDCARD]/bad-module.ts" from "[WILDCARD]/error_005_missing_dynamic_import.ts"
[WILDCARD]dispatch_json.ts:[WILDCARD]
at unwrapResponse ([WILDCARD]dispatch_json.ts:[WILDCARD])
at Object.sendAsync ([WILDCARD]dispatch_json.ts:[WILDCARD])
at async processImports ([WILDCARD]compiler/imports.ts:[WILDCARD])

View file

@ -1,5 +1,4 @@
[WILDCARD]error: Uncaught NotFound: Cannot resolve module "[WILDCARD]/non-existent" from "[WILDCARD]/error_006_import_ext_failure.ts"
[WILDCARD]dispatch_json.ts:[WILDCARD]
at unwrapResponse ([WILDCARD]dispatch_json.ts:[WILDCARD])
at Object.sendAsync ([WILDCARD]dispatch_json.ts:[WILDCARD])
at async processImports ([WILDCARD]compiler/imports.ts:[WILDCARD])

View file

@ -1,7 +1,4 @@
[WILDCARD]error: Uncaught ReferenceError: consol is not defined
[WILDCARD]tests/error_008_checkjs.js:2:1
2 consol.log("hello world!");
^
consol.log("hello world!");
^
at [WILDCARD]tests/error_008_checkjs.js:2:1

View file

@ -1,5 +1,4 @@
[WILDCARD]error: Uncaught URIError: relative import path "bad-module.ts" not prefixed with / or ./ or ../ Imported from "[WILDCARD]/error_011_bad_module_specifier.ts"
[WILDCARD]dispatch_json.ts:[WILDCARD]
at unwrapResponse ([WILDCARD]ops/dispatch_json.ts:[WILDCARD])
at Object.sendSync ([WILDCARD]ops/dispatch_json.ts:[WILDCARD])
at resolveModules ([WILDCARD]compiler/imports.ts:[WILDCARD])

View file

@ -1,5 +1,4 @@
[WILDCARD]error: Uncaught URIError: relative import path "bad-module.ts" not prefixed with / or ./ or ../ Imported from "[WILDCARD]/error_012_bad_dynamic_import_specifier.ts"
[WILDCARD]dispatch_json.ts:[WILDCARD]
at unwrapResponse ([WILDCARD]ops/dispatch_json.ts:[WILDCARD])
at Object.sendSync ([WILDCARD]ops/dispatch_json.ts:[WILDCARD])
at resolveModules ([WILDCARD]compiler/imports.ts:[WILDCARD])

View file

@ -1,3 +1,2 @@
[WILDCARD]error TS2532: Object is possibly 'undefined'.
► file:///[WILDCARD]cli/tests/error_017_hide_long_source_ts.ts:2:1
at [WILDCARD]tests/error_017_hide_long_source_ts.ts:2:1

View file

@ -1,3 +1,2 @@
error: Uncaught TypeError: Cannot read property 'a' of undefined
► file:///[WILDCARD]cli/tests/error_018_hide_long_source_js.js:2:206
at file:///[WILDCARD]cli/tests/error_018_hide_long_source_js.js:2:206

View file

@ -1,6 +1,4 @@
error: Uncaught SyntaxError: Unexpected identifier
[WILDCARD]tests/error_syntax.js:3:6
3 (the following is a syntax error ^^ ! )
~~~~~~~~~
(the following is a syntax error ^^ ! )
~~~~~~~~~
at [WILDCARD]tests/error_syntax.js:3:6

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@ -1,2 +1,2 @@
error: Uncaught SyntaxError: Unexpected end of input
► file:///[WILDCARD]cli/tests/error_syntax_empty_trailing_line.mjs:[WILDCARD]
at [WILDCARD]tests/error_syntax_empty_trailing_line.mjs:[WILDCARD]

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@ -1,5 +1,4 @@
[WILDCARD]error: Uncaught URIError: relative import path "baz" not prefixed with / or ./ or ../ Imported from "[WILDCARD]/type_definitions/bar.d.ts"
[WILDCARD]ops/dispatch_json.ts:[WILDCARD]
at unwrapResponse ([WILDCARD]ops/dispatch_json.ts:[WILDCARD])
at Object.sendSync ([WILDCARD]ops/dispatch_json.ts:[WILDCARD])
at Object.resolveModules ([WILDCARD]ops/compiler.ts:[WILDCARD])

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@ -1,11 +1,5 @@
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
// TODO: This currently only applies to uncaught exceptions. It would be nice to
// also have source maps for situations like this:
// const err = new Error("Boo!");
// console.log(err.stack);
// It would require calling into Rust from Error.prototype.prepareStackTrace.
use crate::ErrBox;
use rusty_v8 as v8;
use std::convert::TryFrom;
@ -260,7 +254,6 @@ fn format_source_loc(
line_number: i64,
column_number: i64,
) -> String {
// TODO match this style with how typescript displays errors.
let line_number = line_number;
let column_number = column_number;
format!("{}:{}:{}", file_name, line_number, column_number)