mirror of
https://github.com/joelwmale/webhook-action.git
synced 2024-12-05 05:34:29 +01:00
65 lines
1.8 KiB
JavaScript
65 lines
1.8 KiB
JavaScript
|
/**
|
||
|
* @fileoverview Rule to flag use of an lexical declarations inside a case clause
|
||
|
* @author Erik Arvidsson
|
||
|
*/
|
||
|
"use strict";
|
||
|
|
||
|
//------------------------------------------------------------------------------
|
||
|
// Rule Definition
|
||
|
//------------------------------------------------------------------------------
|
||
|
|
||
|
module.exports = {
|
||
|
meta: {
|
||
|
type: "suggestion",
|
||
|
|
||
|
docs: {
|
||
|
description: "disallow lexical declarations in case clauses",
|
||
|
category: "Best Practices",
|
||
|
recommended: true,
|
||
|
url: "https://eslint.org/docs/rules/no-case-declarations"
|
||
|
},
|
||
|
|
||
|
schema: [],
|
||
|
|
||
|
messages: {
|
||
|
unexpected: "Unexpected lexical declaration in case block."
|
||
|
}
|
||
|
},
|
||
|
|
||
|
create(context) {
|
||
|
|
||
|
/**
|
||
|
* Checks whether or not a node is a lexical declaration.
|
||
|
* @param {ASTNode} node A direct child statement of a switch case.
|
||
|
* @returns {boolean} Whether or not the node is a lexical declaration.
|
||
|
*/
|
||
|
function isLexicalDeclaration(node) {
|
||
|
switch (node.type) {
|
||
|
case "FunctionDeclaration":
|
||
|
case "ClassDeclaration":
|
||
|
return true;
|
||
|
case "VariableDeclaration":
|
||
|
return node.kind !== "var";
|
||
|
default:
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return {
|
||
|
SwitchCase(node) {
|
||
|
for (let i = 0; i < node.consequent.length; i++) {
|
||
|
const statement = node.consequent[i];
|
||
|
|
||
|
if (isLexicalDeclaration(statement)) {
|
||
|
context.report({
|
||
|
node: statement,
|
||
|
messageId: "unexpected"
|
||
|
});
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
};
|
||
|
|
||
|
}
|
||
|
};
|