'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.SourceCoverage = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _istanbulLibCoverage = require('istanbul-lib-coverage');

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

function cloneLocation(loc) {
    return {
        start: {
            line: loc && loc.start.line,
            column: loc && loc.start.column
        },
        end: {
            line: loc && loc.end.line,
            column: loc && loc.end.column
        }
    };
}
/**
 * SourceCoverage provides mutation methods to manipulate the structure of
 * a file coverage object. Used by the instrumenter to create a full coverage
 * object for a file incrementally.
 *
 * @private
 * @param pathOrObj {String|Object} - see the argument for {@link FileCoverage}
 * @extends FileCoverage
 * @constructor
 */

var SourceCoverage = function (_classes$FileCoverage) {
    _inherits(SourceCoverage, _classes$FileCoverage);

    function SourceCoverage(pathOrObj) {
        _classCallCheck(this, SourceCoverage);

        var _this = _possibleConstructorReturn(this, (SourceCoverage.__proto__ || Object.getPrototypeOf(SourceCoverage)).call(this, pathOrObj));

        _this.meta = {
            last: {
                s: 0,
                f: 0,
                b: 0
            }
        };
        return _this;
    }

    _createClass(SourceCoverage, [{
        key: 'newStatement',
        value: function newStatement(loc) {
            var s = this.meta.last.s;
            this.data.statementMap[s] = cloneLocation(loc);
            this.data.s[s] = 0;
            this.meta.last.s += 1;
            return s;
        }
    }, {
        key: 'newFunction',
        value: function newFunction(name, decl, loc) {
            var f = this.meta.last.f;
            name = name || '(anonymous_' + f + ')';
            this.data.fnMap[f] = {
                name: name,
                decl: cloneLocation(decl),
                loc: cloneLocation(loc)
            };
            this.data.f[f] = 0;
            this.meta.last.f += 1;
            return f;
        }
    }, {
        key: 'newBranch',
        value: function newBranch(type, loc) {
            var b = this.meta.last.b;
            this.data.b[b] = [];
            this.data.branchMap[b] = {
                loc: cloneLocation(loc),
                type: type,
                locations: []
            };
            this.meta.last.b += 1;
            return b;
        }
    }, {
        key: 'addBranchPath',
        value: function addBranchPath(name, location) {
            var bMeta = this.data.branchMap[name],
                counts = this.data.b[name];

            /* istanbul ignore if: paranoid check */
            if (!bMeta) {
                throw new Error("Invalid branch " + name);
            }
            bMeta.locations.push(cloneLocation(location));
            counts.push(0);
            return counts.length - 1;
        }
    }, {
        key: 'freeze',
        value: function freeze() {
            // prune empty branches
            var map = this.data.branchMap,
                branches = this.data.b;
            Object.keys(map).forEach(function (b) {
                if (map[b].locations.length === 0) {
                    delete map[b];
                    delete branches[b];
                }
            });
        }
    }]);

    return SourceCoverage;
}(_istanbulLibCoverage.classes.FileCoverage);

exports.SourceCoverage = SourceCoverage;