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[Fix] jsx-curly-brace-presence warns incorrectly on trailing whitespace #2431

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Oct 2, 2019
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9 changes: 5 additions & 4 deletions lib/rules/jsx-curly-brace-presence.js
Original file line number Diff line number Diff line change
Expand Up @@ -168,6 +168,10 @@ module.exports = {
});
}

function isWhiteSpaceLiteral(node) {
return node.type && node.type === 'Literal' && node.value && jsxUtil.isWhiteSpaces(node.value);
}

// Bail out if there is any character that needs to be escaped in JSX
// because escaping decreases readiblity and the original code may be more
// readible anyway or intentional for other specific reasons
Expand All @@ -178,6 +182,7 @@ module.exports = {
if (
(expressionType === 'Literal' || expressionType === 'JSXText') &&
typeof expression.value === 'string' &&
!isWhiteSpaceLiteral(expression) &&
!needToEscapeCharacterForJSX(expression.raw) && (
jsxUtil.isJSX(JSXExpressionNode.parent) ||
!containsQuoteCharacters(expression.value)
Expand Down Expand Up @@ -211,10 +216,6 @@ module.exports = {
);
}

function isWhiteSpaceLiteral(node) {
return node.type && node.type === 'Literal' && node.value && jsxUtil.isWhiteSpaces(node.value);
}

function getAdjacentSiblings(node, children) {
for (let i = 1; i < children.length - 1; i++) {
const child = children[i];
Expand Down
6 changes: 6 additions & 0 deletions tests/lib/rules/jsx-curly-brace-presence.js
Original file line number Diff line number Diff line change
Expand Up @@ -52,9 +52,15 @@ ruleTester.run('jsx-curly-brace-presence', rule, {
{
code: '<App>{\' \'}</App>'
},
{
code: '<App>{\' \'}\n</App>'
},
{
code: '<App>{\' \'}</App>'
},
{
code: '<App>{\' \'}\n</App>'
},
{
code: '<App>{\' \'}</App>',
options: [{children: 'never'}]
Expand Down