kitchensink
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Dispatch's awesome components and style guide
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JavaScript
/**
* Requires placing line feed after assigning a variable.
*
* Type: `Boolean`
*
* Value: `true`
*
* #### Example
*
* ```js
* "requireLineBreakAfterVariableAssignment": true
* ```
*
* ##### Valid
*
* ```js
* var abc = 8;
* var foo = 5;
*
* var a, b, c,
* foo = 7,
* bar = 8;
*
* var a,
* foo = 7,
* a, b, c,
* bar = 8;
* ```
*
* ##### Invalid
*
* ```js
* var abc = 8; var foo = 5;
*
* var a, b, c,
* foo = 7, bar = 8;
* ```
*/
var assert = require('assert');
module.exports = function() {};
module.exports.prototype = {
configure: function(options) {
assert(
options === true,
this.getOptionName() + ' option requires a true value or should be removed'
);
},
getOptionName: function() {
return 'requireLineBreakAfterVariableAssignment';
},
check: function(file, errors) {
var lastDeclaration;
file.iterateNodesByType('VariableDeclaration', function(node) {
if (node.parentNode.type === 'ForStatement' ||
node.parentNode.type === 'ForInStatement' ||
node.parentNode.type === 'ForOfStatement') {
return;
}
for (var i = 0; i < node.declarations.length; i++) {
var thisDeclaration = node.declarations[i];
if (thisDeclaration.parentNode.kind === 'var' ||
thisDeclaration.parentNode.kind === 'let' ||
thisDeclaration.parentNode.kind === 'const') {
if (lastDeclaration && lastDeclaration.init) {
errors.assert.differentLine({
token: lastDeclaration,
nextToken: thisDeclaration,
message: 'Variable assignments should be followed by new line'
});
}
lastDeclaration = thisDeclaration;
}
}
});
}
};