Anders Kaseorg
ef50346a29
js: Convert _.reject(a, … => …) to a.filter(… => !…).
...
And convert the corresponding function expressions to arrow style
while we’re here.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg
ac7b09d57e
js: Convert _.map(a, …) to a.map(…).
...
And convert the corresponding function expressions to arrow style
while we’re here.
import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import K from "ast-types/gen/kinds";
import fs from "fs";
import path from "path";
import process from "process";
const checkExpression = (node: n.Node): node is K.ExpressionKind =>
n.Expression.check(node);
for (const file of process.argv.slice(2)) {
console.log("Parsing", file);
const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
parser: path.extname(file) === ".ts" ? tsParser : babelParser,
});
let changed = false;
recast.visit(ast, {
visitCallExpression(path) {
const { callee, arguments: args } = path.node;
if (
n.MemberExpression.check(callee) &&
!callee.computed &&
n.Identifier.check(callee.object) &&
callee.object.name === "_" &&
n.Identifier.check(callee.property) &&
callee.property.name === "map" &&
args.length === 2 &&
checkExpression(args[0]) &&
checkExpression(args[1])
) {
const [arr, fn] = args;
path.replace(
b.callExpression(b.memberExpression(arr, b.identifier("map")), [
n.FunctionExpression.check(fn) ||
n.ArrowFunctionExpression.check(fn)
? b.arrowFunctionExpression(
fn.params,
n.BlockStatement.check(fn.body) &&
fn.body.body.length === 1 &&
n.ReturnStatement.check(fn.body.body[0])
? fn.body.body[0].argument || b.identifier("undefined")
: fn.body
)
: fn,
])
);
changed = true;
}
this.traverse(path);
},
});
if (changed) {
console.log("Writing", file);
fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
}
}
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-10 14:08:12 -08:00
Anders Kaseorg
02511bff1c
js: Automatically convert _.each to for…of.
...
This commit was automatically generated by the following script,
followed by lint --fix and a few small manual lint-related cleanups.
import * as babelParser from "recast/parsers/babel";
import * as recast from "recast";
import * as tsParser from "recast/parsers/typescript";
import { builders as b, namedTypes as n } from "ast-types";
import { Context } from "ast-types/lib/path-visitor";
import K from "ast-types/gen/kinds";
import { NodePath } from "ast-types/lib/node-path";
import assert from "assert";
import fs from "fs";
import path from "path";
import process from "process";
const checkExpression = (node: n.Node): node is K.ExpressionKind =>
n.Expression.check(node);
const checkStatement = (node: n.Node): node is K.StatementKind =>
n.Statement.check(node);
for (const file of process.argv.slice(2)) {
console.log("Parsing", file);
const ast = recast.parse(fs.readFileSync(file, { encoding: "utf8" }), {
parser: path.extname(file) === ".ts" ? tsParser : babelParser,
});
let changed = false;
let inLoop = false;
let replaceReturn = false;
const visitLoop = (...args: string[]) =>
function(this: Context, path: NodePath) {
for (const arg of args) {
this.visit(path.get(arg));
}
const old = { inLoop };
inLoop = true;
this.visit(path.get("body"));
inLoop = old.inLoop;
return false;
};
recast.visit(ast, {
visitDoWhileStatement: visitLoop("test"),
visitExpressionStatement(path) {
const { expression, comments } = path.node;
let valueOnly;
if (
n.CallExpression.check(expression) &&
n.MemberExpression.check(expression.callee) &&
!expression.callee.computed &&
n.Identifier.check(expression.callee.object) &&
expression.callee.object.name === "_" &&
n.Identifier.check(expression.callee.property) &&
["each", "forEach"].includes(expression.callee.property.name) &&
[2, 3].includes(expression.arguments.length) &&
checkExpression(expression.arguments[0]) &&
(n.FunctionExpression.check(expression.arguments[1]) ||
n.ArrowFunctionExpression.check(expression.arguments[1])) &&
[1, 2].includes(expression.arguments[1].params.length) &&
n.Identifier.check(expression.arguments[1].params[0]) &&
((valueOnly = expression.arguments[1].params[1] === undefined) ||
n.Identifier.check(expression.arguments[1].params[1])) &&
(expression.arguments[2] === undefined ||
n.ThisExpression.check(expression.arguments[2]))
) {
const old = { inLoop, replaceReturn };
inLoop = false;
replaceReturn = true;
this.visit(
path
.get("expression")
.get("arguments")
.get(1)
.get("body")
);
inLoop = old.inLoop;
replaceReturn = old.replaceReturn;
const [right, { body, params }] = expression.arguments;
const loop = b.forOfStatement(
b.variableDeclaration("let", [
b.variableDeclarator(
valueOnly ? params[0] : b.arrayPattern([params[1], params[0]])
),
]),
valueOnly
? right
: b.callExpression(
b.memberExpression(right, b.identifier("entries")),
[]
),
checkStatement(body) ? body : b.expressionStatement(body)
);
loop.comments = comments;
path.replace(loop);
changed = true;
}
this.traverse(path);
},
visitForStatement: visitLoop("init", "test", "update"),
visitForInStatement: visitLoop("left", "right"),
visitForOfStatement: visitLoop("left", "right"),
visitFunction(path) {
this.visit(path.get("params"));
const old = { replaceReturn };
replaceReturn = false;
this.visit(path.get("body"));
replaceReturn = old.replaceReturn;
return false;
},
visitReturnStatement(path) {
if (replaceReturn) {
assert(!inLoop); // could use labeled continue if this ever fires
const { argument, comments } = path.node;
if (argument === null) {
const s = b.continueStatement();
s.comments = comments;
path.replace(s);
} else {
const s = b.expressionStatement(argument);
s.comments = comments;
path.replace(s, b.continueStatement());
}
return false;
}
this.traverse(path);
},
visitWhileStatement: visitLoop("test"),
});
if (changed) {
console.log("Writing", file);
fs.writeFileSync(file, recast.print(ast).code, { encoding: "utf8" });
}
}
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-02-07 14:09:47 -08:00
Rohitt Vashishtha
f4b02ce31e
compose: Add fences of unused length in quote-and-reply.
...
When quoting a message with fenced code blocks without a language,
we used to have ambiguity in which '```' fence terminates the quote.
This commit adds explicitly non-interfering fences, which fixes the
above issue as well as makes the raw message easier to quickly read.
Fixes #12446 .
2020-02-04 18:17:47 -08:00
Anders Kaseorg
28f3dfa284
js: Automatically convert var to let and const in most files.
...
This commit was originally automatically generated using `tools/lint
--only=eslint --fix`. It was then modified by tabbott to contain only
changes to a set of files that are unlikely to result in significant
merge conflicts with any open pull request, excluding about 20 files.
His plan is to merge the remaining changes with more precise care,
potentially involving merging parts of conflicting pull requests
before running the `eslint --fix` operation.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-11-03 12:42:39 -08:00
Anders Kaseorg
d17b577d0c
js: Purge useless IIFEs.
...
With webpack, variables declared in each file are already file-local
(Global variables need to be explicitly exported), so these IIFEs are
no longer needed.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-10-25 13:51:21 -07:00
Armaan Ahluwalia
6d255efe4c
app: Prepare JS files for consumption by webpack.
...
This commit prepares the frontend code to be consumed by webpack.
It is a hack: In theory, modules should be declaring and importing the
modules they depend on and the globals they expose directly.
However, that requires significant per-module work, which we don't
really want to block moving our toolchain to webpack on.
So we expose the modules by setting window.varName = varName; as
needed in the js files.
2018-07-05 10:53:36 +02:00
Tim Abbott
7ab8a8e820
js: Fix a bunch of indentation issues found by eslint.
...
This is preparation for enabling an eslint indentation configuration.
90% of these changes are just fixes for indentation errors that have
snuck into the codebase over the years; the others are more
significant reformatting to make eslint happy (that are not otherwise
actually improvements).
The one area that we do not attempt to work on here is the
"switch/case" indentation.
2018-05-06 16:25:02 -07:00
Andy Perez
0449dc8b8a
bugdown: Fix handling of nested fenced math blocks.
...
Change any fence delimiters (backticks and tildes) to be
interpreted literally inside of math fenced_code blocks.
Fixes #5190 .
2017-11-22 12:19:43 -08:00
Cory Lynch
6255636923
Support special characters for code block languages.
...
Fixes #5412
2017-06-19 06:53:25 -04:00
hollywoodno
d6716838ad
bugdown: Remove trailing whitespace on fence code blocks.
...
This fixes fenced code blocks that are copy-pasted from certain
clients having trailing whitespace anoyingly often.
Fixes #3998 .
2017-03-22 14:17:34 -07:00
Yago González
34a9e1ae11
markdown: Add TeX typesetting support.
...
Co-authored-by: Reid Barton <rwbarton@gmail.com>
Fixes #2056 .
2017-03-21 16:40:00 -07:00
Tim Abbott
998dff9e50
lint: Add dangling commas in JavaScript objects.
2017-01-11 15:23:42 -08:00
AZtheAsian
9c0ebc7359
eslint: change no-else-return to error and fix violations
2016-12-02 14:43:09 -08:00
umkay
82d03d603a
Update Pygments to latest upstream version.
...
In HTML, the line break immediately following a start tag is ignored
(see: https://www.w3.org/TR/html4/appendix/notes.html#h-B.3.1 ). An
extra span tag has been introduced in the upstream Pygments
HtmlFormatter in order to preserve the first new line. The Bugdown
Tests as well as our fenced_code.js frontend markdown processor have
been updated to reflect this new behavior.
2016-09-12 21:58:25 -07:00
Steve Howell
8f37c3f5fd
Tolerate spaces after language in markdown fences.
...
See #2357 . We now support `~~~ .py ` with that trailing space.
Note that the test coverage is Python-side only due to
bugdown_matches_marked being set to false, since we don't yet
support language syntax on the client side.
(imported from commit ccd5fcb0eee01478d349161400103480678d7486)
2014-03-06 10:15:20 -05:00
Leo Franchi
bb21400732
[localecho] Properly escape HTML in code blocks
...
(imported from commit 11f7e4f440cdd3a2ef6debb10c3d5a07f4fd1a1a)
2014-02-03 12:57:54 -05:00
Leo Franchi
daecc7993a
Add a fenced code parser in javascript
...
(imported from commit 42b1dc18ca34cbbdf3cda6e833adde631a9d88f5)
2014-01-28 15:35:32 -05:00