"use strict";
/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Object.defineProperty(exports, "__esModule", { value: true });
const schematics_1 = require("@angular-devkit/schematics");
/** Determines the indentation of child elements for the given Parse5 element. */
function getChildElementIndentation(element) {
    const childElement = element.childNodes
        .find(node => node['tagName']);
    if ((childElement && !childElement.sourceCodeLocation) || !element.sourceCodeLocation) {
        throw new schematics_1.SchematicsException('Cannot determine child element indentation because the ' +
            'specified Parse5 element does not have any source code location metadata.');
    }
    const startColumns = childElement ?
        // In case there are child elements inside of the element, we assume that their
        // indentation is also applicable for other child elements.
        childElement.sourceCodeLocation.startCol :
        // In case there is no child element, we just assume that child elements should be indented
        // by two spaces.
        element.sourceCodeLocation.startCol + 2;
    // Since Parse5 does not set the `startCol` properties as zero-based, we need to subtract
    // one column in order to have a proper zero-based offset for the indentation.
    return startColumns - 1;
}
exports.getChildElementIndentation = getChildElementIndentation;
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