Outlook_Addin_LLM/node_modules/eslint-plugin-office-addins/lib/rules/test-for-null-using-isNullObject.js

const utils_1 = require("@typescript-eslint/utils");
const getFunction_1 = require("../utils/getFunction");
module.exports = {
    name: "test-for-null-using-isNullObject",
    meta: {
        type: "problem",
        messages: {
            useIsNullObject: "Test the isNullObject property of '{{name}}'.",
        },
        docs: {
            description: "Do not test the truthiness of an object returned by an OrNullObject method or property. Test it's isNullObject property.",
            category: "Possible Errors",
            recommended: false,
            url: "https://docs.microsoft.com/office/dev/add-ins/develop/application-specific-api-model#ornullobject-methods-and-properties",
        },
        schema: [],
        fixable: "code",
    },
    create: function (context) {
        function isConditionalTestExpression(node) {
            return (node.parent != undefined &&
                (node.parent.type === utils_1.AST_NODE_TYPES.IfStatement ||
                    node.parent.type === utils_1.AST_NODE_TYPES.WhileStatement ||
                    node.parent.type === utils_1.AST_NODE_TYPES.DoWhileStatement ||
                    node.parent.type === utils_1.AST_NODE_TYPES.ForStatement ||
                    node.parent.type === utils_1.AST_NODE_TYPES.ConditionalExpression) &&
                node === node.parent.test);
        }
        function isInUnaryNullTest(node) {
            return (node.parent != undefined &&
                node.parent.type === utils_1.AST_NODE_TYPES.UnaryExpression &&
                node.parent.operator === "!" &&
                node.parent.argument === node);
        }
        function isInBinaryNullTest(node) {
            return (node.parent != undefined &&
                node.parent.type === utils_1.AST_NODE_TYPES.BinaryExpression &&
                ((node.parent.left === node &&
                    node.parent.right.type === utils_1.AST_NODE_TYPES.Literal &&
                    node.parent.right.raw === "null") ||
                    (node.parent.right === node &&
                        node.parent.left.type === utils_1.AST_NODE_TYPES.Literal &&
                        node.parent.left.raw === "null")));
        }
        function isInNullTest(node) {
            var _a;
            return (isConditionalTestExpression(node) ||
                ((_a = node.parent) === null || _a === void 0 ? void 0 : _a.type) === utils_1.AST_NODE_TYPES.LogicalExpression ||
                isInUnaryNullTest(node) ||
                isInBinaryNullTest(node));
        }
        function isNullObjectNode(node) {
            if (node &&
                ((node.type === utils_1.AST_NODE_TYPES.VariableDeclarator &&
                    node.init &&
                    (0, getFunction_1.isGetOrNullObjectFunction)(node.init) &&
                    node.id.type === utils_1.AST_NODE_TYPES.Identifier) ||
                    (node.type === utils_1.AST_NODE_TYPES.AssignmentExpression &&
                        (0, getFunction_1.isGetOrNullObjectFunction)(node.right) &&
                        node.left.type === utils_1.AST_NODE_TYPES.Identifier))) {
                return true;
            }
            return false;
        }
        function findNullObjectNullTests(scope) {
            const variables = scope.variables;
            const childScopes = scope.childScopes;
            for (let i = 0; i < variables.length; i++) {
                const variable = variables[i];
                const references = variable.references;
                let nullObjectCall = false;
                const nullTests = [];
                for (let ref = 0; ref < references.length; ref++) {
                    const identifier = references[ref].identifier;
                    if (isNullObjectNode(identifier.parent)) {
                        nullObjectCall = true;
                    }
                    if (isInNullTest(identifier)) {
                        nullTests.push(identifier);
                    }
                }
                if (nullObjectCall === true && nullTests.length > 0) {
                    nullTests.forEach((identifier) => {
                        context.report({
                            node: identifier,
                            messageId: "useIsNullObject",
                            data: { name: identifier.name },
                            fix: function (fixer) {
                                var ruleFix;
                                if (isInBinaryNullTest(identifier) && identifier.parent) {
                                    let newTest = identifier.name + ".isNullObject";
                                    ruleFix = fixer.replaceText(identifier.parent, newTest);
                                }
                                else {
                                    ruleFix = fixer.insertTextAfter(identifier, ".isNullObject");
                                }
                                return ruleFix;
                            },
                        });
                    });
                }
            }
            for (let i = 0; i < childScopes.length; ++i) {
                findNullObjectNullTests(childScopes[i]);
            }
        }
        return {
            "Program:exit"() {
                findNullObjectNullTests(context.getScope());
            },
        };
    },
};
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