@abaplint/core/build/src/rules/no_chained_assignment.js

abaplint - Core API

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.NoChainedAssignment = exports.NoChainedAssignmentConf = void 0;
const Expressions = require("../abap/2_statements/expressions");
const Statements = require("../abap/2_statements/statements");
const issue_1 = require("../issue");
const _abap_rule_1 = require("./_abap_rule");
const _basic_rule_config_1 = require("./_basic_rule_config");
const _irule_1 = require("./_irule");
const edit_helper_1 = require("../edit_helper");
class NoChainedAssignmentConf extends _basic_rule_config_1.BasicRuleConfig {
}
exports.NoChainedAssignmentConf = NoChainedAssignmentConf;
class NoChainedAssignment extends _abap_rule_1.ABAPRule {
    constructor() {
        super(...arguments);
        this.conf = new NoChainedAssignmentConf();
    }
    getMetadata() {
        return {
            key: "no_chained_assignment",
            title: "No chained assignment",
            shortDescription: `Find chained assingments and reports issues`,
            extendedInformation: `https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#dont-chain-assignments`,
            tags: [_irule_1.RuleTag.SingleFile, _irule_1.RuleTag.Styleguide, _irule_1.RuleTag.Quickfix],
            badExample: `var1 = var2 = var3.`,
            goodExample: `var2 = var3.
var1 = var2.`,
        };
    }
    getConfig() {
        return this.conf;
    }
    setConfig(conf) {
        this.conf = conf;
    }
    runParsed(file) {
        const issues = [];
        for (const s of file.getStatements()) {
            if (!(s.get() instanceof Statements.Move)) {
                continue;
            }
            if (s.findDirectExpressions(Expressions.Target).length >= 2) {
                const message = "No chained assignment";
                const fix = this.buildFix(file, s);
                const issue = issue_1.Issue.atStatement(file, s, message, this.getMetadata().key, this.getConfig().severity, fix);
                issues.push(issue);
            }
        }
        return issues;
    }
    buildFix(file, node) {
        // window of 3 expressions
        const children = node.getChildren();
        let res = "";
        for (let i = children.length - 4; i >= 0; i = i - 2) {
            const concat = children[i].concatTokens() + " " + children[i + 1].concatTokens() + " " + children[i + 2].concatTokens();
            res += concat + ".\n";
        }
        return edit_helper_1.EditHelper.replaceRange(file, node.getStart(), node.getEnd(), res.trimEnd());
    }
}
exports.NoChainedAssignment = NoChainedAssignment;
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