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Patrick Marsceill
2017-03-09 13:16:08 -05:00
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# block-closing-brace-space-after
Require a single space or disallow whitespace after the closing brace of blocks.
```css
a { color: pink; }
/** ↑
* The space after this brace */
```
This rule allows a trailing semicolon after the closing brace of a block. For example,
```css
:root {
--toolbar-theme: {
background-color: hsl(120, 70%, 95%);
};
/* ↑
* This semicolon */
}
```
## Options
`string`: `"always"|"never"|"always-single-line"|"never-single-line"|"always-multi-line"|"never-multi-line"`
### `"always"`
There *must always* be a single space after the closing brace.
The following patterns are considered warnings:
```css
a { color: pink; }b { color: red; }
```
```css
a { color: pink; }
b { color: red; }
```
The following patterns are *not* considered warnings:
```css
a { color: pink; } b { color: red; }
```
### `"never"`
There *must never* be whitespace after the closing brace.
The following patterns are considered warnings:
```css
a { color: pink; } b { color: red; }
```
```css
a { color: pink; }
b { color: red; }
```
The following patterns are *not* considered warnings:
```css
a { color: pink; }b { color: red; }
```
```css
a { color: pink;
}b { color: red; }
```
### `"always-single-line"`
There *must always* be a single space after the closing brace in single-line blocks.
The following patterns are considered warnings:
```css
a { color: pink; }b { color: red; }
```
The following patterns are *not* considered warnings:
```css
a { color: pink; } b { color: red; }
```
```css
a { color: pink;
}b { color: red; }
```
### `"never-single-line"`
There *must never* be whitespace after the closing brace in single-line blocks.
The following patterns are considered warnings:
```css
a { color: pink; } b { color: red; }
```
The following patterns are *not* considered warnings:
```css
a { color: pink; }b { color: red; }
```
```css
a { color: pink;
} b { color: red; }
```
### `"always-multi-line"`
There *must always* be a single space after the closing brace in multi-line blocks.
The following patterns are considered warnings:
```css
a { color: pink;
}b { color: red; }
```
The following patterns are *not* considered warnings:
```css
a { color: pink; }b { color: red; }
```
```css
a { color: pink;
} b { color: red; }
```
### `"never-multi-line"`
There *must never* be whitespace after the closing brace in multi-line blocks.
The following patterns are considered warnings:
```css
a { color: pink;
} b { color: red; }
```
The following patterns are *not* considered warnings:
```css
a { color: pink; } b { color: red; }
```
```css
a { color: pink;
}b { color: red; }
```

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"use strict"
const blockString = require("../../utils/blockString")
const hasBlock = require("../../utils/hasBlock")
const rawNodeString = require("../../utils/rawNodeString")
const report = require("../../utils/report")
const ruleMessages = require("../../utils/ruleMessages")
const validateOptions = require("../../utils/validateOptions")
const whitespaceChecker = require("../../utils/whitespaceChecker")
const ruleName = "block-closing-brace-space-after"
const messages = ruleMessages(ruleName, {
expectedAfter: () => "Expected single space after \"}\"",
rejectedAfter: () => "Unexpected whitespace after \"}\"",
expectedAfterSingleLine: () => "Expected single space after \"}\" of a single-line block",
rejectedAfterSingleLine: () => "Unexpected whitespace after \"}\" of a single-line block",
expectedAfterMultiLine: () => "Expected single space after \"}\" of a multi-line block",
rejectedAfterMultiLine: () => "Unexpected whitespace after \"}\" of a multi-line block",
})
const rule = function (expectation) {
const checker = whitespaceChecker("space", expectation, messages)
return function (root, result) {
const validOptions = validateOptions(result, ruleName, {
actual: expectation,
possible: [
"always",
"never",
"always-single-line",
"never-single-line",
"always-multi-line",
"never-multi-line",
],
})
if (!validOptions) {
return
}
// Check both kinds of statements: rules and at-rules
root.walkRules(check)
root.walkAtRules(check)
function check(statement) {
const nextNode = statement.next()
if (!nextNode) {
return
}
if (!hasBlock(statement)) {
return
}
let reportIndex = statement.toString().length
let source = rawNodeString(nextNode)
// Skip a semicolon at the beginning, if any
if (
source
&& source[0] === ";"
) {
source = source.slice(1)
reportIndex++
}
checker.after({
source,
index: -1,
lineCheckStr: blockString(statement),
err: msg => {
report({
message: msg,
node: statement,
index: reportIndex,
result,
ruleName,
})
},
})
}
}
}
rule.ruleName = ruleName
rule.messages = messages
module.exports = rule