/
genericSpacing.js
94 lines (83 loc) · 2.9 KB
/
genericSpacing.js
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import {spacingFixers} from '../utilities';
const schema = [
{
enum: ['always', 'never'],
type: 'string',
},
];
const create = (context) => {
const sourceCode = context.getSourceCode();
const never = (context.options[0] || 'never') === 'never';
return {
GenericTypeAnnotation (node) {
const types = node.typeParameters;
// Promise<foo>
// ^^^^^^^^^^^^ GenericTypeAnnotation (with typeParameters)
// ^^^ GenericTypeAnnotation (without typeParameters)
if (!types) {
return;
}
const [opener, firstInnerToken] = sourceCode.getFirstTokens(types, 2);
const [lastInnerToken, closer] = sourceCode.getLastTokens(types, 2);
const spacesBefore = firstInnerToken.range[0] - opener.range[1];
const spacesAfter = closer.range[0] - lastInnerToken.range[1];
if (never) {
if (spacesBefore) {
if (sourceCode.text[opener.range[1]] !== '\n') {
context.report({
data: {name: node.id.name},
fix: spacingFixers.stripSpacesAfter(opener, spacesBefore),
message: 'There must be no space at start of "{{name}}" generic type annotation',
node: types,
});
}
}
if (spacesAfter) {
if (sourceCode.text[closer.range[0] - 1] !== '\n') {
context.report({
data: {name: node.id.name},
fix: spacingFixers.stripSpacesAfter(lastInnerToken, spacesAfter),
message: 'There must be no space at end of "{{name}}" generic type annotation',
node: types,
});
}
}
} else {
if (spacesBefore > 1) {
context.report({
data: {name: node.id.name},
fix: spacingFixers.stripSpacesAfter(opener, spacesBefore - 1),
message: 'There must be one space at start of "{{name}}" generic type annotation',
node: types,
});
} else if (spacesBefore === 0) {
context.report({
data: {name: node.id.name},
fix: spacingFixers.addSpaceAfter(opener),
message: 'There must be a space at start of "{{name}}" generic type annotation',
node: types,
});
}
if (spacesAfter > 1) {
context.report({
data: {name: node.id.name},
fix: spacingFixers.stripSpacesAfter(lastInnerToken, spacesAfter - 1),
message: 'There must be one space at end of "{{name}}" generic type annotation',
node: types,
});
} else if (spacesAfter === 0) {
context.report({
data: {name: node.id.name},
fix: spacingFixers.addSpaceAfter(lastInnerToken),
message: 'There must be a space at end of "{{name}}" generic type annotation',
node: types,
});
}
}
},
};
};
export default {
create,
schema,
};