This repository has been archived on 2020-11-02. You can view files and clone it, but cannot push or open issues or pull requests.
2020-11-01 22:46:04 +00:00

169 lines
3.8 KiB
JavaScript

// @ts-nocheck
'use strict';
const _ = require('lodash');
const atRuleParamIndex = require('../../utils/atRuleParamIndex');
const declarationValueIndex = require('../../utils/declarationValueIndex');
const isWhitespace = require('../../utils/isWhitespace');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const styleSearch = require('style-search');
const validateOptions = require('../../utils/validateOptions');
const ruleName = 'function-whitespace-after';
const messages = ruleMessages(ruleName, {
expected: 'Expected whitespace after ")"',
rejected: 'Unexpected whitespace after ")"',
});
const ACCEPTABLE_AFTER_CLOSING_PAREN = new Set([')', ',', '}', ':', '/', undefined]);
function rule(expectation, options, context) {
return (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: expectation,
possible: ['always', 'never'],
});
if (!validOptions) {
return;
}
function check(node, value, getIndex, fix) {
styleSearch(
{
source: value,
target: ')',
functionArguments: 'only',
},
(match) => {
checkClosingParen(value, match.startIndex + 1, node, getIndex, fix);
},
);
}
function checkClosingParen(source, index, node, getIndex, fix) {
const nextChar = source[index];
if (expectation === 'always') {
// Allow for the next character to be a single empty space,
// another closing parenthesis, a comma, or the end of the value
if (nextChar === ' ') {
return;
}
if (nextChar === '\n') {
return;
}
if (source.substr(index, 2) === '\r\n') {
return;
}
if (ACCEPTABLE_AFTER_CLOSING_PAREN.has(nextChar)) {
return;
}
if (fix) {
fix(index);
return;
}
report({
message: messages.expected,
node,
index: getIndex(node) + index,
result,
ruleName,
});
} else if (expectation === 'never') {
if (isWhitespace(nextChar)) {
if (fix) {
fix(index);
return;
}
report({
message: messages.rejected,
node,
index: getIndex(node) + index,
result,
ruleName,
});
}
}
}
function createFixer(value) {
let fixed = '';
let lastIndex = 0;
let applyFix;
if (expectation === 'always') {
applyFix = (index) => {
// eslint-disable-next-line prefer-template
fixed += value.slice(lastIndex, index) + ' ';
lastIndex = index;
};
} else if (expectation === 'never') {
applyFix = (index) => {
let whitespaceEndIndex = index + 1;
while (whitespaceEndIndex < value.length && isWhitespace(value[whitespaceEndIndex])) {
whitespaceEndIndex++;
}
fixed += value.slice(lastIndex, index);
lastIndex = whitespaceEndIndex;
};
}
return {
applyFix,
get hasFixed() {
return Boolean(lastIndex);
},
get fixed() {
return fixed + value.slice(lastIndex);
},
};
}
root.walkAtRules(/^import$/i, (atRule) => {
const param = _.get(atRule, 'raws.params.raw', atRule.params);
const fixer = context.fix && createFixer(param);
check(atRule, param, atRuleParamIndex, fixer && fixer.applyFix);
if (fixer && fixer.hasFixed) {
if (atRule.raws.params) {
atRule.raws.params.raw = fixer.fixed;
} else {
atRule.params = fixer.fixed;
}
}
});
root.walkDecls((decl) => {
const value = _.get(decl, 'raws.value.raw', decl.value);
const fixer = context.fix && createFixer(value);
check(decl, value, declarationValueIndex, fixer && fixer.applyFix);
if (fixer && fixer.hasFixed) {
if (decl.raws.value) {
decl.raws.value.raw = fixer.fixed;
} else {
decl.value = fixer.fixed;
}
}
});
};
}
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;