ifc-language-server/node_modules/eslint/lib/rules/no-negated-in-lhs.js
Ryan Schultz 8afacf268a Implemented a working Language Server Protocol (LSP) for IFC files with:
- Hover provider showing entity information and type
- Go-to-definition (F12) for entity references
- Basic IFC file validation (ISO-10303-21 header check)
- Entity parsing with regex-based detection
- Proper CommonJS module system (avoiding ES module issues)

This replaces the broken baseline from ifc-developer-tools which had:
- Non-functional ES module configuration
- Circular dependency issues
- Parser crashes
- Non-working PositionVisitor

Built on Microsoft's LSP example template for a clean, maintainable foundation.

Next: Add hierarchical entity dependency tree in hover tooltip."
2025-12-07 10:20:07 -06:00

59 lines
1.3 KiB
JavaScript

/**
* @fileoverview A rule to disallow negated left operands of the `in` operator
* @author Michael Ficarra
* @deprecated in ESLint v3.3.0
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
/** @type {import('../types').Rule.RuleModule} */
module.exports = {
meta: {
type: "problem",
docs: {
description:
"Disallow negating the left operand in `in` expressions",
recommended: false,
url: "https://eslint.org/docs/latest/rules/no-negated-in-lhs",
},
deprecated: {
message: "Renamed rule.",
url: "https://eslint.org/blog/2016/08/eslint-v3.3.0-released/#deprecated-rules",
deprecatedSince: "3.3.0",
availableUntil: null,
replacedBy: [
{
rule: {
name: "no-unsafe-negation",
url: "https://eslint.org/docs/rules/no-unsafe-negation",
},
},
],
},
schema: [],
messages: {
negatedLHS: "The 'in' expression's left operand is negated.",
},
},
create(context) {
return {
BinaryExpression(node) {
if (
node.operator === "in" &&
node.left.type === "UnaryExpression" &&
node.left.operator === "!"
) {
context.report({ node, messageId: "negatedLHS" });
}
},
};
},
};