111 lines
3.4 KiB
JavaScript
111 lines
3.4 KiB
JavaScript
|
/**
|
||
|
|
* @fileoverview Disallow or enforce spaces around equal signs in JSX attributes.
|
||
|
|
* @author ryym
|
||
|
|
*/
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
const docsUrl = require('../util/docsUrl');
|
||
|
|
const report = require('../util/report');
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------------
|
||
|
|
// Rule Definition
|
||
|
|
// ------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
const messages = {
|
||
|
|
noSpaceBefore: 'There should be no space before \'=\'',
|
||
|
|
noSpaceAfter: 'There should be no space after \'=\'',
|
||
|
|
needSpaceBefore: 'A space is required before \'=\'',
|
||
|
|
needSpaceAfter: 'A space is required after \'=\'',
|
||
|
|
};
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
meta: {
|
||
|
|
docs: {
|
||
|
|
description: 'Enforce or disallow spaces around equal signs in JSX attributes',
|
||
|
|
category: 'Stylistic Issues',
|
||
|
|
recommended: false,
|
||
|
|
url: docsUrl('jsx-equals-spacing'),
|
||
|
|
},
|
||
|
|
fixable: 'code',
|
||
|
|
|
||
|
|
messages,
|
||
|
|
|
||
|
|
schema: [{
|
||
|
|
enum: ['always', 'never'],
|
||
|
|
}],
|
||
|
|
},
|
||
|
|
|
||
|
|
create(context) {
|
||
|
|
const config = context.options[0] || 'never';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines a given attribute node has an equal sign.
|
||
|
|
* @param {ASTNode} attrNode - The attribute node.
|
||
|
|
* @returns {boolean} Whether or not the attriute node has an equal sign.
|
||
|
|
*/
|
||
|
|
function hasEqual(attrNode) {
|
||
|
|
return attrNode.type !== 'JSXSpreadAttribute' && attrNode.value !== null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// --------------------------------------------------------------------------
|
||
|
|
// Public
|
||
|
|
// --------------------------------------------------------------------------
|
||
|
|
|
||
|
|
return {
|
||
|
|
JSXOpeningElement(node) {
|
||
|
|
node.attributes.forEach((attrNode) => {
|
||
|
|
if (!hasEqual(attrNode)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const sourceCode = context.getSourceCode();
|
||
|
|
const equalToken = sourceCode.getTokenAfter(attrNode.name);
|
||
|
|
const spacedBefore = sourceCode.isSpaceBetweenTokens(attrNode.name, equalToken);
|
||
|
|
const spacedAfter = sourceCode.isSpaceBetweenTokens(equalToken, attrNode.value);
|
||
|
|
|
||
|
|
if (config === 'never') {
|
||
|
|
if (spacedBefore) {
|
||
|
|
report(context, messages.noSpaceBefore, 'noSpaceBefore', {
|
||
|
|
node: attrNode,
|
||
|
|
loc: equalToken.loc.start,
|
||
|
|
fix(fixer) {
|
||
|
|
return fixer.removeRange([attrNode.name.range[1], equalToken.range[0]]);
|
||
|
|
},
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (spacedAfter) {
|
||
|
|
report(context, messages.noSpaceAfter, 'noSpaceAfter', {
|
||
|
|
node: attrNode,
|
||
|
|
loc: equalToken.loc.start,
|
||
|
|
fix(fixer) {
|
||
|
|
return fixer.removeRange([equalToken.range[1], attrNode.value.range[0]]);
|
||
|
|
},
|
||
|
|
});
|
||
|
|
}
|
||
|
|
} else if (config === 'always') {
|
||
|
|
if (!spacedBefore) {
|
||
|
|
report(context, messages.needSpaceBefore, 'needSpaceBefore', {
|
||
|
|
node: attrNode,
|
||
|
|
loc: equalToken.loc.start,
|
||
|
|
fix(fixer) {
|
||
|
|
return fixer.insertTextBefore(equalToken, ' ');
|
||
|
|
},
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (!spacedAfter) {
|
||
|
|
report(context, messages.needSpaceAfter, 'needSpaceAfter', {
|
||
|
|
node: attrNode,
|
||
|
|
loc: equalToken.loc.start,
|
||
|
|
fix(fixer) {
|
||
|
|
return fixer.insertTextAfter(equalToken, ' ');
|
||
|
|
},
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
};
|
||
|
|
},
|
||
|
|
};
|