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semi.js
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semi.js
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const schema = [
{
enum: ['always', 'never'],
type: 'string'
}
];
const create = (context) => {
const never = (context.options[0] || 'always') === 'never';
const sourceCode = context.getSourceCode();
const report = (node, missing) => {
const lastToken = sourceCode.getLastToken(node);
let fix;
let message;
let {loc} = lastToken;
if (missing) {
message = 'Missing semicolon.';
loc = loc.end;
fix = (fixer) => {
return fixer.insertTextAfter(lastToken, ';');
};
} else {
message = 'Extra semicolon.';
loc = loc.start;
fix = (fixer) => {
return fixer.remove(lastToken);
};
}
context.report({
fix,
loc,
message,
node
});
};
const isSemicolon = (token) => {
return token.type === 'Punctuator' && token.value === ';';
};
const checkForSemicolon = (node) => {
const lastToken = sourceCode.getLastToken(node);
const isLastTokenSemicolon = isSemicolon(lastToken);
if (never && isLastTokenSemicolon) {
report(node, false);
}
if (!never && !isLastTokenSemicolon) {
report(node, true);
}
};
return {
OpaqueType: checkForSemicolon,
TypeAlias: checkForSemicolon
};
};
export default {
create,
schema
};