@eagleoutice/flowr/statistics/features/supported/expression-list/statistics-expression-list.js

Static Dataflow Analyzer and Program Slicer for the R Programming Language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.expressionList = void 0;
const post_process_1 = require("./post-process");
const visitor_1 = require("../../../../r-bridge/lang-4.x/ast/model/processing/visitor");
const type_1 = require("../../../../r-bridge/lang-4.x/ast/model/type");
const initialExpressionListInfo = {
    allExpressionLists: 0,
    deepestNesting: 0
};
function visitLists(info, input) {
    let nest = -1; // we start with nesting 0
    let total = 0;
    (0, visitor_1.visitAst)(input.normalizedRAst.ast, node => {
        if (node.type === type_1.RType.ExpressionList) {
            nest++;
            total++;
            info.deepestNesting = Math.max(info.deepestNesting, nest);
        }
    }, node => {
        if (node.type === type_1.RType.ExpressionList) {
            nest--;
        }
    });
    info.allExpressionLists += total;
}
exports.expressionList = {
    name: 'Expression Lists',
    description: 'Counts expression list nestings',
    process(existing, input) {
        visitLists(existing, input);
        return existing;
    },
    initialValue: initialExpressionListInfo,
    postProcess: post_process_1.postProcess
};
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