Commit Graph

335 Commits

Author SHA1 Message Date
Krasimir Georgiev 446d6ec996 [clang-format] fix handling of consecutive unary operators
Summary:
Code that used to be formatted as `if (! + object) {` is now formatted as `if (!+object) {`
(we have a particular object in our codebase where unary `operator+` is overloaded to return the underlying value, which in this case is a `bool`)

We still preserve the TypeScript behavior where `!` is a trailing non-null operator. (This is already tested by an existing unit test in `FormatTestJS.cpp`)

It doesn't appear like handling of consecutive unary operators are tested in general, so I added another test for completeness

Patch contributed by @kevinl!

Reviewers: krasimir

Reviewed By: krasimir

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43312

llvm-svn: 326792
2018-03-06 13:56:28 +00:00
Martin Probst 110ecc7002 clang-format: [JS] fix `of` detection.
Summary:
`of` is only a keyword when after an identifier, but not when after
an actual keyword.

Before:
    return of (a, b, c);
After:
    return of(a, b, c);

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D43440

llvm-svn: 325489
2018-02-19 12:32:13 +00:00
Martin Probst f8e1f5c7d3 clang-format: [JS] Prevent ASI before [ and (.
Summary:
JavaScript automatic semicolon insertion can trigger before [ and (, so
avoid breaking before them if the previous token is likely to terminate
an expression.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D42570

llvm-svn: 323532
2018-01-26 15:07:49 +00:00
Martin Probst 27b6603f90 clang-format: [JS] do not wrap after async/await.
Summary:
Otherwise automatic semicolon insertion can trigger, i.e. wrapping
produces invalid syntax.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D40642

llvm-svn: 319415
2017-11-30 10:25:17 +00:00
Martin Probst c160cfaf66 clang-format: [JS] do not collapse short classes.
Summary:
clang-format does not collapse short records, interfaces, unions, etc.,
but fails to do so if the record is preceded by certain modifiers
(export, default, abstract, declare). This change skips over all
modifiers, and thus handles all record definitions uniformly.

Before:
    export class Foo { bar: string; }
    class Baz {
      bam: string;
    }

After:
    export class Foo {
      bar: string;
    }
    class Baz {
      bam: string;
    }

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40430

llvm-svn: 318976
2017-11-25 09:35:33 +00:00
Martin Probst e8e27ca866 clang-format: [JS] handle semis in generic types.
Summary:
TypeScript generic type arguments can contain object (literal) types,
which in turn can contain semicolons:

    const x: Array<{a: number; b: string;} = [];

Previously, clang-format would incorrectly categorize the braced list as
a block and terminate the line at the openening `{`, and then format the
entire expression badly.

With this change, clang-format recognizes `<` preceding a `{` as
introducing a type expression. In JS, `<` comparison with an object
literal can never be true, so the chance of introducing false positives
here is very low.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D40424

llvm-svn: 318975
2017-11-25 09:33:47 +00:00
Martin Probst 6c38ef90fd clang-format: [JS] handle `for` as object label.
Summary: Previously, clang-format would fail formatting `{for: 1}`.

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40441

llvm-svn: 318974
2017-11-25 09:24:33 +00:00
Martin Probst 7e0f25b28d clang-format: [JS] disable ASI on decorators.
Summary:
Automatic Semicolon Insertion in clang-format tries to guess if a line
wrap should insert an implicit semicolong. The previous heuristic would
not trigger ASI if a token was immediately preceded by an `@` sign:

    function foo(@Bar  // <-- does not trigger due to preceding @
                baz) {}

However decorators can have arbitrary parameters:

    function foo(@Bar(param, param, param)  // <-- precending @ missed
                baz) {}

While it would be possible to precisely find the matching `@`, just
conversatively disabling ASI for the entire line is simpler, while also
not regressing ASI substatially.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D40410

llvm-svn: 318973
2017-11-25 09:19:42 +00:00
Martin Probst ce2bd4dfd8 clang-format: [JS] do not break in ArrayType[].
Summary:
Wrapping between the type name and the array type indicator creates
invalid syntax in TypeScript.

Before:
    const xIsALongIdent:
        YJustBarelyFitsLinex
            [];  // illegal syntax.

After:
    const xIsALongIdent:
        YJustBarelyFitsLinex[];

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40436

llvm-svn: 318959
2017-11-24 17:05:56 +00:00
Martin Probst a5968aad3d clang-format: [JS] do not wrap before yield.
Summary: The same rules apply as for `return`.

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40431

llvm-svn: 318958
2017-11-24 17:05:35 +00:00
Martin Probst a2555114b6 clang-format: [JS] space between ! assert and in.
Summary:
Before:
    x = y!in z;
After:
    x = y! in z;

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40433

llvm-svn: 318957
2017-11-24 17:04:40 +00:00
Martin Probst 70cec59e23 clang-format: [JS] handle destructuring `of`.
Summary:
Previously, clang-format would drop a space character between `of` and
then following (non-identifier) token if the preceding token was part of
a destructuring assignment (`}` or `]`).

Before:
    for (const [a, b] of[]) {}

After:
    for (const [a, b] of []) {}

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40411

llvm-svn: 318942
2017-11-24 10:48:25 +00:00
Martin Probst a004b3f50f clang-format: remove trailing lines in lamdas and arrow functions.
Summary:
clang-format already removes empty lines at the beginning & end of
blocks:

    int x() {

      foo();  // lines before and after will be removed.

    }

However because lamdas and arrow functions are parsed as expressions,
the existing logic to remove empty lines in UnwrappedLineFormatter
doesn't handle them.

This change special cases arrow functions in ContinuationIndenter to
remove empty lines:

    x = []() {

      foo();  // lines before and after will now be removed.

    };

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D40178

llvm-svn: 318537
2017-11-17 18:06:33 +00:00
Krasimir Georgiev 35599fdfa0 [clang-format] Break non-trailing comments, try 2
Summary:
This patch enables `BreakableToken` to manage the formatting of non-trailing
block comments. It is a refinement of https://reviews.llvm.org/D37007.
We discovered that the optimizer outsmarts us on cases where breaking the comment
costs considerably less than breaking after the comment. This patch addresses
this by ensuring that a newline is inserted between a block comment and the next
token.

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D37695

llvm-svn: 315893
2017-10-16 09:08:53 +00:00
Martin Probst 103a7b5bbb clang-format: [JS] wrap and indent `goog.setTestOnly` calls.
Summary:
While `goog.setTestOnly` usually appears in the imports section of a file, it is
not actually an import, and also usually doesn't take long parameters (nor
namespaces as a parameter, it's a description/message that should be wrapped).

This fixes a regression where a `goog.setTestOnly` call nested in a function was
not wrapped.

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D37685

llvm-svn: 312918
2017-09-11 15:22:52 +00:00
Martin Probst c10d97f924 clang-format: [JS] simplify template string wrapping.
Summary:
Previously, clang-format would try to wrap template string substitutions
by indenting relative to the openening `${`. This helped with
indenting structured strings, such as strings containing HTML, as the
substitutions would be aligned according to the structure of the string.

However it turns out that the overwhelming majority of template string +
substitution usages are for substitutions into non-structured strings,
e.g. URLs or just plain messages. For these situations, clang-format
would often produce very ugly indents, in particular for strings
containing no line breaks:

    return `<a href='http://google3/${file}?l=${row}'>${file}</a>(${
                                                                    row
                                                                  },${
                                                                      col
                                                                    }): `;

This change makes clang-format indent template string substitutions as
if they were string concatenation operations. It wraps +4 on overlong
lines and keeps all operands on the same line:

    return `<a href='http://google3/${file}?l=${row}'>${file}</a>(${
        row},${col}): `;

While this breaks some lexical continuity between the `${` and `row}`
here, the overall effects are still a huge improvement, and users can
still manually break the string using `+` if desired.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D37142

llvm-svn: 311988
2017-08-29 08:30:07 +00:00
Martin Probst 325ff7c5e0 clang-format: [JS] wrap optional properties in type aliases.
Summary:
clang-format wraps object literal keys in an object literal if they are
marked as `TT_SelectorName`s and/or the colon is marked as
`TT_DictLiteral`. Previously, clang-format would accidentally work
because colons in type aliases were marked as `TT_DictLiteral`. r310367
fixed this to assing `TT_JsTypeColon`, which broke wrapping in certain
situations. However the root cause was that clang-format incorrectly
didn't skip questionmarks when detecting selector name.

This change fixes both locations to (1) assign `TT_SelectorName` and (2)
treat `TT_JsTypeColon` like `TT_DictLiteral`.

Previously:

    type X = {
      a: string, b?: string,
    };

Now:

    type X = {
      a: string,
      b?: string,
    };

Reviewers: djasper, sammccall

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D36684

llvm-svn: 310852
2017-08-14 16:09:08 +00:00
Martin Probst 83e0220b3f clang-format: [JS] do not insert whitespace in call positions.
Summary:
In JavaScript, may keywords can be used in method names and thus call sites:

    foo.delete();
    foo.instanceof();

clang-format would previously insert whitespace after the `instanceof`. This
change generically skips inserting whitespace between a keyword and a
parenthesis if preceded by a dot, i.e. in a callsite.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36142

llvm-svn: 310851
2017-08-14 16:08:16 +00:00
Martin Probst 0a19d433c1 clang-format: [JS] detect ASI after closing parens.
Summary: A closing parenthesis followed by a declaration or statement should always terminate the current statement.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36491

llvm-svn: 310482
2017-08-09 15:19:16 +00:00
Krasimir Georgiev 3b86534a63 [clang-format] Put '/**' and '*/' on own lines in jsdocs ending in comment pragmas
Summary:
This handles a case where the trailing '*/' of a multiline jsdoc eding in a
comment pragma wouldn't be put on a new line.

Reviewers: mprobst

Reviewed By: mprobst

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D36359

llvm-svn: 310458
2017-08-09 09:42:32 +00:00
Martin Probst 0fb46bb222 clang-format: [JS] fix union type spacing in object & array types.
Summary:
Previously, clang-format would insert whitespace in union types nested in object
and array types, as it wouldn't recognize those as a type operator:

    const x: {foo: number | null};
    const x: [number | null];

While this is correct for actual binary operators, clang-format should not
insert whitespace into union and intersection types to mark those:

    const x: {foo: number|null};
    const x: [number|null];

This change propagates that the context is not an expression by inspecting
the preceding token and marking as non-expression if it was a type colon.

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D36136

llvm-svn: 310367
2017-08-08 15:00:58 +00:00
Martin Probst 64d31edef3 clang-format: [JS] handle single lines comments ending in `\\`.
Summary:
Previously, clang-format would consider the following code line to be part of
the comment and incorrectly format the rest of the file.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36159

llvm-svn: 310365
2017-08-08 14:52:42 +00:00
Martin Probst f785fd94c6 clang-format: [JS] support fields with case/switch/default labels.
Summary:
`case:` and `default:` would normally parse as labels for a `switch` block.
However in TypeScript, they can be used in field declarations, e.g.:

    interface I {
      case: string;
    }

This change special cases parsing them in declaration lines to avoid wrapping
them.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36148

llvm-svn: 310070
2017-08-04 17:07:15 +00:00
Martin Probst 9926abb91f clang-format: [JS] no whitespace between typeof operator and l_paren.
llvm-svn: 309713
2017-08-01 17:42:16 +00:00
Martin Probst cde9815dc2 clang-format: [JS] prefer wrapping chains over empty literals.
Summary:
E.g. don't wrap like this:

    (foo.bar.baz).and.bam(Blah.of({
    }))

But rather:

    (foo.bar.baz)
        .and.bam(Blah.of({}))

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36139

llvm-svn: 309712
2017-08-01 17:35:57 +00:00
Martin Probst 22e00f09a0 clang-format: [JS] whitespace between keywords and parenthesized expressions.
Summary: `throw (...)` should have a whitespace following it, as do await and void.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36146

llvm-svn: 309710
2017-08-01 17:22:15 +00:00
Martin Probst ec36326d85 clang-format: [JS] handle union types in arrow functions.
Summary: clang-format would previously fail to detect that an arrow functions parameter block is not an expression, and thus insert whitespace around the `|` and `&` type operators in it.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36147

llvm-svn: 309707
2017-08-01 17:19:32 +00:00
Martin Probst db51cc5745 clang-format: [JS] consistenly format enums.
Summary: Previously, const enums would get formatted differently because the modifier was not recognized.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36144

llvm-svn: 309703
2017-08-01 17:12:15 +00:00
Martin Probst cb870c57b3 clang-format: [JS] handle object types in extends positions.
Summary:
clang-format would previously drop the whitespace after `extends` in code such as:

    class Foo extends {} {}

Where the first set of curly braces is an inline object literal type.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36131

llvm-svn: 309695
2017-08-01 15:46:10 +00:00
Krasimir Georgiev 22d7e6b08d [clang-format] Put '/**' and '*/' on own lines in multiline jsdocs
Reviewers: mprobst

Reviewed By: mprobst

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D35683

llvm-svn: 308684
2017-07-20 22:29:39 +00:00
Martin Probst 93008f0154 clang-format: [JS] Correctly format JavaScript imports with long module paths
Currently the `UnwrappedLineParser` fails to correctly unwrap JavaScript
imports where the module path is not on the same line as the `from` keyword.
For example:

    import {A} from
    'some/path/longer/than/column/limit/module.js';```

This causes issues when in the middle a list of imports because the formatter
thinks it has reached the end of the imports, and therefore will not sort any
imports lower in the list.

The formatter will, however, split the `from` keyword and the module path if
the path exceeds the column limit, which triggers the issue the next time the
file is formatted.

Patch originally by Jared Neil - thanks!

Differential Revision: https://reviews.llvm.org/D34920

llvm-svn: 308306
2017-07-18 14:00:19 +00:00
Martin Probst a81dd0b6eb clang-format: [JS] do not wrap after "readonly".
Summary:
Breaks after "readonly" trigger automatic semicolon insertion in field
declarations.

Reviewers: krasimir, djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D35112

llvm-svn: 307394
2017-07-07 13:17:10 +00:00
Martin Probst 37a7f91005 clang-format: [JS] space between pseudo keywords and template literals.
Summary:
Before:
  yield`foo`;

After:
  yield `foo`;

This reinstates commit 71d3b5cd91 / r307023 and fixes the logic by
introducing an explicit table of JavaScript pseudo keywords.

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D34953

llvm-svn: 307087
2017-07-04 15:30:21 +00:00
Martin Probst 29e0a99297 Revert "clang-format: [JS] space between pseudo keywords and template literals."
This reverts commit 71d3b5cd916106005ef23467e3f6c7fbca7bc499.

llvm-svn: 307034
2017-07-03 15:31:28 +00:00
Martin Probst bd1eb12d31 clang-format: [JS] space between pseudo keywords and template literals.
Summary:
Before:
    yield`foo`;

After:
    yield `foo`;

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D34938

llvm-svn: 307023
2017-07-03 14:29:13 +00:00
Martin Probst d96a052cb1 clang-format: [JS] recognize exported type definitions.
Summary: Support "export type T = {...};", in addition to just "type T = {...};".

Reviewers: klimek

Differential Revision: https://reviews.llvm.org/D33980

llvm-svn: 304904
2017-06-07 12:53:22 +00:00
Martin Probst 384232766b clang-format: [JS] Correctly Indent Nested JavaScript Literals.
Nested literals are sometimes only indented by 2 spaces, instead of
respecting the IndentWidth option.
There are existing unit tests (FormatTestJS.ArrayLiterals) that only
pass because the style used to test them uses an IndentWidth of 2.
This change removes the magic 2 and always uses the IndentWidth.
I've added 6 tests. The first 4 of these tests fail before this change,
while the last 2 already pass, but were added just to make sure it the
change works with all types of braces.

Patch originally by Jared Neil, thanks!

Differential Revision: https://reviews.llvm.org/D33857

llvm-svn: 304791
2017-06-06 12:38:29 +00:00
Martin Probst 95ed8e7928 clang-format: [JS] improve calculateBraceType heuristic
Summary:

calculateBraceTypes decides for braced init for empty brace pairs ({}).
In context of a function declaration, this incorrectly classifies empty
function or method bodies as braced inits, leading to missing wraps:

    class C {
      foo() {}[bar]() {}
    }

Where code should have wrapped after "}", before "[". This change adds
another piece of contextual information in that braces following closing
parentheses must always be the opening braces of function blocks. This
fixes brace detection for methods immediately followed by brackets
(computed property declarations), but also curlies.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D33714

llvm-svn: 304290
2017-05-31 09:29:40 +00:00
Martin Probst b2f06eae8d clang-format: [JS] fix indenting bound functions.
Summary:
The previous fix to force build style wrapping if the previous token is a closing parenthesis broke a peculiar pattern where users parenthesize the function declaration in a bind call:
    fn((function() { ... }).bind(this));

This restores the previous behaviour by reverting that change, but narrowing the special case for unindenting closing parentheses to those followed by semicolons and opening braces, i.e. immediate calls and function declarations.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D33640

llvm-svn: 304135
2017-05-29 07:50:52 +00:00
Martin Probst ab60acb698 clang-format: [JS] avoid line breaks before unindented r_parens.
The change that enabled wrapping at the previous scope's indentation had
unintended side-effects in that clang-format would prefer to wrap
closing parentheses to the next line if it avoided a wrap on the next
line (assuming very narrow lines):

    fooObject
        .someCall(barbazbam)
        .then(bam);

Would get formatted as:

    fooObject.someCall(barbazbam
    ).then(bam);

Because the ')' is now indented at the parent level (fooObject).

Normally formatting a builder pattern style call sequence like that is
outlawed in clang-format anyway. However for JavaScript this is special
cased to support trailing .bind calls.

This change disallows this special case when following a closing ')' to
avoid the problem.

Included are some random comment fixes.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D33399

llvm-svn: 303557
2017-05-22 14:58:26 +00:00
Martin Probst a050f41c3c clang-format: [JS] for await, and fix a crash with for loops.
Summary:
The syntax is actually `for await (const x of y)` (d'oh).
This also fixes a crash for `for` tokens not followed by additional tokens.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D33329

llvm-svn: 303382
2017-05-18 21:19:29 +00:00
Martin Probst bd49e321d3 clang-format: [JS] for async loops.
Summary:
JavaScript supports asynchronous loop iteration in async functions:

    for async (const x of y) ...

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D33193

llvm-svn: 303106
2017-05-15 19:33:20 +00:00
Martin Probst 2c1cdae2df JavaScript allows parameter lists to include trailing commas:
myFunction(param1, param2,);

For symmetry with other parenthesized lists ([...], {...}), clang-format should
wrap parenthesized lists one-per-line if they contain a trailing comma:

    myFunction(
        param1,
        param2,
    );

This is particularly useful in function declarations or calls with many
arguments, e.g. commonly in constructors.

Differential Revision: https://reviews.llvm.org/D33023

llvm-svn: 303049
2017-05-15 11:15:29 +00:00
Martin Probst 82b3d906bc clang-format: [JS] fix non-null assertion operator recognition.
Summary:
`getIdentifierInfo()` includes all keywords, whereas non-null assertion
operators should only be recognized after non-keywords or pseudo keywords.
Ideally this should list all tokens that clang-format recognizes as a keyword,
but that are pseudo or no keywords in JS. For the time being, just recognize
the specific bits users ran into (`namespace` in this case).

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D33182

llvm-svn: 303038
2017-05-15 08:15:53 +00:00
Martin Probst 79f9c5fe0c clang-format: [JS] support non-null assertions after all identifiers.
Summary:
Previously:
    x = namespace !;

Now:
    x = namespace!;

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D33113

llvm-svn: 302893
2017-05-12 13:00:33 +00:00
Martin Probst b7fb267ed3 clang-format: refine calculating brace types.
Summary:
For C++ code, opening parenthesis following a } indicate a braced init. For JavaScript and other languages, this is an invalid syntactical construct, unless the closing parenthesis belongs to a function - in which situation its a BK_Block.

This fixes indenting IIFEs following top level functions:

    function foo() {}
    (function() { codeHere(); }());

clang-format used to collapse these lines together.

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D33006

llvm-svn: 302658
2017-05-10 13:53:29 +00:00
Martin Probst 101ec894c3 clang-format: [JS] Don't indent JavaScript IIFEs.
Because IIFEs[1] are often used like an anonymous namespace around large
sections of JavaScript code, it's useful not to indent to them (which
effectively reduces the column limit by the indent amount needlessly).

It's also common for developers to wrap these around entire files or
libraries. When adopting clang-format, changing the indent entire file
can reduce the usefulness of the blame annotations.

Patch by danbeam, thanks!

Differential Revision: https://reviews.llvm.org/D32989

llvm-svn: 302580
2017-05-09 20:04:09 +00:00
Martin Probst 2083f31b88 clang-format: [JS] keep triple slash directives intact.
Summary:
TypeScript uses triple slash directives of the form:
    /// <reference path="..."/>

For various non-source instructions that should not be wrapped.

Reference:
https://www.typescriptlang.org/docs/handbook/triple-slash-directives.html

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D32997

llvm-svn: 302523
2017-05-09 12:45:48 +00:00
Martin Probst 4ef0370e6d clang-format: [JS] exponentiation operator
Summary: While its precedence should be higher than multiplicative, LLVM does not have a level for that, so for the time being just treat it as multiplicative.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D32864

llvm-svn: 302156
2017-05-04 15:04:04 +00:00
Martin Probst 973ff79e29 clang-format: [JS] parse async function declarations.
Summary:
Previously, clang-format would accidentally parse an async function
declaration as a function expression, and thus not insert an unwrapped
line for async functions, causing subsequent functions to run into the
function:

    async function f() {
      x();
    } function g() { ...

With this change, async functions get parsed as top level function
declarations and get their own unwrapped line context.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D32590

llvm-svn: 301538
2017-04-27 13:07:24 +00:00
Martin Probst ad06391ca9 clang-format: [JS/Java] ignore Objective-C constructs in JS & Java.
Summary:
Java and JavaScript support annotations and decorators, respectively, that use a leading "@" token. clang-format currently detects this as an Objective-C construct and applies special formatting, for example no whitespace around "=" operators. This change disables the distinction for Java and JavaScript, which leads to normal formatting of single line annotated and initialized properties.

Before:
    class X {
      @foo() bar=false;
    }

After:
    class X {
      @foo() bar = false;
    }

Reviewers: djasper, bkramer

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D32532

llvm-svn: 301399
2017-04-26 12:36:49 +00:00
Martin Probst 19c7de0a22 clang-format: [JS] prevent wraps before class members.
Summary: In JavaScript/TypeScript, class member definitions that use modifiers can be subject to Automatic Semicolon Insertion (ASI). For example, "class X { get \n foo }" defines a property called "get" and a property called "foo", both with no type annotation. This change prevents wrapping after the modifier keywords (visibility modifiers, static, get and set) to prevent accidental ASI.

Reviewers: djasper, bkramer

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D32531

llvm-svn: 301397
2017-04-26 12:34:15 +00:00
Krasimir Georgiev bcda54b69d [clang-format] Replace IncompleteFormat by a struct with Line
Summary: This patch replaces the boolean IncompleteFormat that is used to notify the client if an unrecoverable syntax error occurred by a struct that also contains a line number.

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D32298

llvm-svn: 300985
2017-04-21 14:35:20 +00:00
Martin Probst c4a3d081a9 clang-format: [JS] fix whitespace around "of" operator.
Summary:
Previously:
    import {of } from 'x';
    of (null);

Now:
    import {of} from 'x';
    of(null);

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D31698

llvm-svn: 299533
2017-04-05 10:56:07 +00:00
Daniel Jasper 72b3357f2d clang-format: [JavaScript] Ignore QT keywords.
llvm-svn: 299204
2017-03-31 12:04:37 +00:00
Martin Probst b4cdb65e5f clang-format: [JS] do not wrap @see tags.
Summary:
@see is special among JSDoc tags in that it is commonly followed by URLs. The JSDoc spec suggests that users should wrap URLs in an additional {@link url...} tag (@see http://usejsdoc.org/tags-see.html), but this is very commonly violated, with @see being followed by a "naked" URL.

This change special cases all JSDoc lines that contain an @see not to be wrapped to account for that.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D30883

llvm-svn: 297607
2017-03-13 09:39:23 +00:00
Martin Probst 22b8d26924 clang-format: [JS] allow breaking after non-null assertions.
Summary:
Previously clang-format would not break after any !. However in TypeScript, ! can be used as a post fix operator for non-nullability:
    x.foo()!.bar()!;

With this change, clang-format will wrap after the ! if it is likely a post-fix non null operator.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D30705

llvm-svn: 297606
2017-03-13 09:14:23 +00:00
Martin Probst b98ab89ebb clang-format: [JS] do not wrap after interface and type.
Summary:
`interface` and `type` are pseudo keywords and cause automatic semicolon
insertion when followed by a line break:

    interface  // gets parsed as a long variable access to "interface"
        VeryLongInterfaceName {

    }

With this change, clang-format not longer wraps after `interface` or `type`.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D30874

llvm-svn: 297605
2017-03-13 07:10:18 +00:00
Krasimir Georgiev 17725d8391 [clang-format] Enable comment reflowing in multiline comments containing pragmas
Summary:
This patch enables comment reflowing of lines not matching the comment pragma regex
in multiline comments containing comment pragma lines. Previously, these comments
were dumped without being reindented to the result.

Reviewers: djasper, mprobst

Reviewed By: mprobst

Subscribers: klimek, mprobst, cfe-commits

Differential Revision: https://reviews.llvm.org/D30697

llvm-svn: 297261
2017-03-08 08:55:12 +00:00
Daniel Jasper 893b8adca2 clang-format: [JS] Properly format object literals with shorthands.
Before:
  return {
    a,
    b: 'b', c,
  };

After:
  return {
    a,
    b: 'b',
    c,
  };

llvm-svn: 296664
2017-03-01 19:47:28 +00:00
Daniel Jasper 01b8783a05 clang-format: [JS/TS] Properly understand cast expressions.
Many things were wrong:
- We didn't always allow wrapping after "as", which can be necessary.
- We used to Undestand the identifier after "as" as a start of a name.
- We didn't properly parse the structure of the expression with "as"
  having the precedence of relational operators

llvm-svn: 296659
2017-03-01 19:26:12 +00:00
Martin Probst bb46a7dd2a Blacklist arbitrary @\\w+ JSDoc tags from wrapping.
Summary:
Also limits the blacklisting to only apply when the tag is actually
followed by a parameter in curly braces.

    /** @mods {long.type.must.not.wrap} */

vs

    /** @const this is a long description that may wrap. */

Reviewers: djasper

Subscribers: klimek, krasimir, cfe-commits

Differential Revision: https://reviews.llvm.org/D30452

llvm-svn: 296467
2017-02-28 11:08:24 +00:00
Martin Probst 20371c30ef clang-format: [JS] whitespace after async in arrow functions.
Summary:
Async arrow functions should be marked with a whitespace after the async keyword, before the parameter list:
    x = async () => foo();

Before:
    x = async() => foo();

This makes it easier to tell apart an async arrow function from a call to a function called async.

Reviewers: bkramer

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D30399

llvm-svn: 296330
2017-02-27 11:15:53 +00:00
Daniel Jasper 98e0b12d13 clang-format: [JS] Improve line-wrapping behavior of template strings.
Specifically, similar to other blocks, clang-format now wraps both
after "${" and before the corresponding "}", if the contained
expression spans multiple lines.

llvm-svn: 295663
2017-02-20 14:51:16 +00:00
Daniel Jasper 3d934d366e clang-format: [JS/TS] Improve detection for array subscripts in types.
Before:
  var someValue = (v as aaaaaaaaaaaaaaaaaaaa<T>[
                  ]).someFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

After:
  var someValue = (v as aaaaaaaaaaaaaaaaaaaa<T>[])
                      .someFunction(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 295658
2017-02-20 12:43:41 +00:00
Martin Probst 8e3eba0373 clang-format: [JS] correcly format object literal methods.
Summary:
In JavaScript, object literals can contain methods:

   var x = {
     a() { return 1; },
   };

Previously, clang-format always parsed nested {} inside a braced list as
further braced lists. Special case this logic for JavaScript to try
parsing as a braced list, but fall back to parsing as a child block.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D29656

llvm-svn: 294315
2017-02-07 16:33:13 +00:00
Martin Probst 16282993b7 clang-format: [JS] exclaim preceding regex literals.
Summary:
Regex detection would incorrectly classify a trailing `!` operator
(nullability cast) followed by a `/` as the start of a regular
expression literal. This fixes code such as:

    var foo = x()! / 10;

Which would previously parse a regexp all the way to the end of the
source file (or next `/`).

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D29634

llvm-svn: 294304
2017-02-07 14:08:03 +00:00
Martin Probst 1027fb8a06 clang-format: [JS] handle parenthesized class expressions.
Summary:
In JavaScript, classes are expressions, so they can appear e.g. in
argument lists.

    var C = foo(class {
      bar() {
        return 1;
      }
    };

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D29635

llvm-svn: 294302
2017-02-07 14:05:30 +00:00
Daniel Jasper c06f6da34e clang-format: [JS] Fix bugs in parsing and aligning template strings.
llvm-svn: 294009
2017-02-03 14:32:38 +00:00
Daniel Jasper 3f11941d8a clang-format: [JS] Indent expressions in ${} relative to their surrounding
This only affects expressions inside ${} scopes of template strings.
Here, we want to indent relative to the surrounding template string and
not the surrounding expression. Otherwise, this can create quite a mess.

Before:
  var f = `
    aaaaaaaaaaaaaaaaaa: ${someFunction(
      aaaaa +  //
      bbbb)}`;

After:
  var f = `
    aaaaaaaaaaaaaaaaaa: ${someFunction(
                              aaaaa +  //
                              bbbb)}`;

llvm-svn: 293636
2017-01-31 14:39:33 +00:00
Daniel Jasper 24de6fbfdb clang-format: [JS] Properly set scopes inside template strings.
Before:
  var f = `aaaaaaaaaaaaa:${aaaaaaa
              .aaaaa} aaaaaaaa
           aaaaaaaaaaaaa:${aaaaaaa.aaaaa} aaaaaaaa`;

After:
  var f = `aaaaaaaaaaaaa:${aaaaaaa.aaaaa} aaaaaaaa
           aaaaaaaaaaaaa:${aaaaaaa.aaaaa} aaaaaaaa`;

llvm-svn: 293622
2017-01-31 13:03:07 +00:00
Daniel Jasper f201929010 clang-format: [JS] Fix incorrect line break in template strings.
Before:
  var f = `aaaa ${a ? 'a' : 'b'
                            }`;

After:
  var f = `aaaa ${a ? 'a' : 'b'}`;

llvm-svn: 293618
2017-01-31 12:07:35 +00:00
Daniel Jasper 51c868e9aa clang-format: [JavaScript] Undo r291974 for JavaScript.
This had significant negative consequences and I don't have a good
solution for it yet.

Before:
  var string =
      [
        'aaaaaa',
        'bbbbbb',
      ]
          .join('+');

After:
  var string = [
    'aaaaaa',
    'bbbbbb',
  ].join('+');

llvm-svn: 293465
2017-01-30 07:08:40 +00:00
Martin Probst fa37b18f94 clang-format: [JS] do not format MPEG transport streams.
Summary:
The MPEG transport stream file format also uses ".ts" as its file extension.
This change detects its specific framing format (0x47 every 189 bytes) and
simply ignores MPEG TS files.

Reviewers: djasper, sammccall

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D29186

llvm-svn: 293270
2017-01-27 09:09:11 +00:00
Martin Probst e6b5b34f6f clang-format: [JS] revert over-eager ASI check.
Summary: Change r291428 introduced ASI detection after closing curly braces. That would generally be correct, however this breaks indentation for structural statements. What happens is that CompoundStatementIndenter increases indentation for the current line, then after reading ASI creates a new line (with the increased line level), and only after the structural parser sees e.g. the if/then/else branch closed, line level is reduced. That leads to the new line started by ASI having a level too high.

Reviewers: djasper

Subscribers: sammccall, cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D28763

llvm-svn: 292099
2017-01-16 09:52:40 +00:00
Martin Probst fd18ec5885 clang-format: [JS] fix broken test.
llvm-svn: 291429
2017-01-09 09:00:58 +00:00
Martin Probst d40bca431d clang-format: [JS] ASI after imports
Summary:
Automatic semicolon insertion should break import and export statements:

Before, this would format on one line:

  // Note: no semi after 'x' below!
  import {x} from 'x'
  export function foo() {}

Into:
  import {x} from 'x' export function foo() {}

With this change, the statements get separated.

This also improves automatic semicolon insertion to consider closing
braces preceding declarations and statements.

Reviewers: klimek

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D28465

llvm-svn: 291428
2017-01-09 08:56:36 +00:00
Joerg Sonnenberger e9987a1d2f Typo
llvm-svn: 291148
2017-01-05 17:59:44 +00:00
Martin Probst af16c50639 clang-format: [JS] avoid indent after ambient function declarations.
Summary:
Before:
  declare function foo();
    let x = 1;

After:
  declare function foo();
  let x = 1;

The problem was that clang-format would unconditionally try to parse a child block, even though ambient function declarations do not have a body (similar to forward declarations).

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D28246

llvm-svn: 290959
2017-01-04 13:36:43 +00:00
Daniel Jasper e98e58111b clang-format: [JS] Properly format dict literals that skip labels.
llvm-svn: 288121
2016-11-29 09:40:36 +00:00
Martin Probst 72fd75a0d1 clang-format: [JS] do not break after declare namespace.
See TypeScript grammar for tokens following 'declare':
https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md#A.10

llvm-svn: 286467
2016-11-10 16:20:58 +00:00
Daniel Jasper 8315ea1613 clang-format: [TypeScript] Fix bug in handling of non-null operator.
Before:
  var i = x!-1;

After:
  var i = x! - 1;

llvm-svn: 286367
2016-11-09 14:12:55 +00:00
Daniel Jasper b559b43802 clang-format: [JS] Fix incorrect space when "as" is used as identifier.
Before:
  aaaaa.as ();

After:
  aaaaa.as();

llvm-svn: 285672
2016-11-01 06:23:10 +00:00
Daniel Jasper 71e50af675 clang-format: [JS] Fix formatting of generator functions.
Before:
  var x = {
    a: function*
	() {
	  //
	}
  }

After:
  var x = {
    a: function*() {
      //
    }
  }

llvm-svn: 285670
2016-11-01 06:22:59 +00:00
Daniel Jasper 4d67dd77a1 clang-format: [JS] Fix space when for is used as regular identifier.
Before:
  x.for () = 1;

After:
  x.for() = 1;

llvm-svn: 285669
2016-11-01 06:22:54 +00:00
Daniel Jasper eb886635d9 clang-format: [JS] Fix missing space after 'yield'.
Before:
  class X {
    delete(val) {
      return null;
    }
    * gen() {
      yield[1, 2];
    }
    * gen() {
      yield{a: 1};
    }
  };

After:
  class X {
    delete(val) {
      return null;
    }
    * gen() {
      yield [1, 2];
    }
    * gen() {
      yield {a: 1};
    }
  };

llvm-svn: 285569
2016-10-31 13:18:25 +00:00
Martin Probst 717f6dcddc clang-format: [JS] Fix template string ASI.
Summary:
Previously, automatic semicolon insertion would add an unwrapped line
when a template string contained a line break.

    var x = `foo${
        bar}`;

Would be formatted with `bar...` on a separate line and no indent.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D25675

llvm-svn: 284807
2016-10-21 05:11:38 +00:00
Martin Probst 4210d2fd1e clang-format: [JS] reserved words in method names.
Summary:
Before:
    class X {
      delete () {
        ...
      }
    }

After:
    class X {
      delete() {
        ...
      }
    }

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D24804

llvm-svn: 282138
2016-09-22 07:18:00 +00:00
Martin Probst fbbe75b1fe clang-format: [JS] Do not wrap taze annotation comments.
Summary:
`// taze: ... from ...` comments are used help tools where a
specific global symbol comes from.

Before:
    // taze: many, different, symbols from
    // 'some_long_location_here'

After:
    // taze: many, different, symbols from 'some_long_location_here'

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D24477

llvm-svn: 281857
2016-09-18 17:33:51 +00:00
Martin Probst b9316ff849 clang-format: [JS] ASI insertion after boolean literals.
Summary:
Before when a semicolon was missing after a boolean literal:
    a = true
    return 1;

clang-format would parse this as one line and format as:
    a = true return 1;

It turns out that C++ does not consider `true` and `false` to be literals, we
have to check for that explicitly.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D24574

llvm-svn: 281856
2016-09-18 17:21:52 +00:00
Daniel Jasper 58209dd9ad clang-format: [JS] Fix a crash in handledTemplateStrings.
llvm-svn: 281816
2016-09-17 07:20:36 +00:00
Daniel Jasper 28d8a5ab43 clang-format: [JavaScript] Change default AllowShortFunctionsOnASingleLine
for Google style to "empty".

llvm-svn: 280878
2016-09-07 23:01:13 +00:00
Daniel Jasper 496c199959 clang-format: [JavaScript] Do requoting in a separate pass
The attempt to fix requoting behavior in r280487 after changes to
tooling::Replacements are incomplete. We essentially need to add to
replacements at the same position, one to insert a line break and one to
change the quoting and that's incompatible with the new
tooling::Replacement API, which does not allow for order-dependent
Replacements. To make the order clear, Replacements::merge() has to be
used, but that requires the merged Replacement to actually refer to the
changed text, which is hard to reproduce for the requoting.

This change fixes the behavior by moving the requoting to a completely
separate pass. The added benefit is that no weird ColumnWidth
calculations are necessary anymore and this should just work even if we
implement string literal splitting in the future.

llvm-svn: 280874
2016-09-07 22:48:53 +00:00
Martin Probst 34ecf42bff clang-format: [JS] whitespace required between ! and as.
Summary:
Before:
    x!as string
After:
    x! as string

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D24272

llvm-svn: 280731
2016-09-06 18:55:34 +00:00
Martin Probst 56ff7aaacb clang-format: [JS] ignore comments when wrapping returns.
Summary:
When code contains a comment between `return` and the value:

    return /* lengthy comment here */ (
        lengthyValueComesHere);

Do not wrap before the comment, as that'd break the code through JS' automatic
semicolon insertion.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D24257

llvm-svn: 280730
2016-09-06 18:39:30 +00:00
Martin Probst a9855afedf clang-format: [JS] merge requoting replacements.
Summary:
When formatting source code that needs both requoting and reindentation,
merge the replacements to avoid erroring out for conflicting replacements.

Also removes the misleading Replacements parameter from the
TokenAnalyzer API.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D24155

llvm-svn: 280487
2016-09-02 14:29:48 +00:00
Martin Probst 6181da4796 clang-format: [JS] nested and tagged template strings.
JavaScript template strings can be nested arbitrarily:

    foo = `text ${es.map(e => { return `<${e}>`; })} text`;

This change lexes nested template strings using a stack of lexer states to
correctly switch back to template string lexing on closing braces.

Also, reuse the same stack for the token-stashed logic.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D22431

llvm-svn: 279727
2016-08-25 10:13:21 +00:00
Martin Probst ed87d788d6 clang-format: [JS] supports casts to types starting with punctuation ("{[(").
Before:

    x as{x: number}

After:

    x as {x: number}

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D23761

llvm-svn: 279436
2016-08-22 14:23:30 +00:00
Martin Probst e1e12a73d7 clang-format: [JS] handle object literals with casts.
Summary: E.g. `{a: 1} as b`.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D23714

llvm-svn: 279250
2016-08-19 14:35:01 +00:00
Daniel Jasper d9d8da2821 clang-format: [JS] Allow top-level conditionals again.
I am not sure exactly which test breakage Martin was trying to fix in
r273694. For now, fix the behavior for top-level conditionals, which
(surprisingly) are actually used somewhat commonly.

llvm-svn: 275183
2016-07-12 15:45:53 +00:00