eslint-plugin-codelyzer/eslint-plugin/rules/use-component-view-encapsulation.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var ts = require("typescript");
var angular_1 = require("../../angular");
var ngWalkerFactoryUtils_1 = require("../../angular/ngWalkerFactoryUtils");
var create_eslint_rule_1 = require("../util/create-eslint-rule");
var utils_1 = require("../../util/utils");
exports.RULE_NAME = 'use-component-view-encapsulation';
var NONE = 'None';
exports.default = create_eslint_rule_1.createESLintRule({
    name: exports.RULE_NAME,
    meta: {
        type: 'suggestion',
        docs: {
            description: "Disallows using ViewEncapsulation." + NONE,
            category: 'Best Practices',
            recommended: false
        },
        schema: [],
        messages: {
            useComponentViewEncapsulation: "Using ViewEncapsulation." + NONE + " makes your styles global, which may have an unintended effect"
        }
    },
    defaultOptions: [],
    create: function (context) {
        var nodeMaps = create_eslint_rule_1.getNodeMaps(context);
        var metadataReader = ngWalkerFactoryUtils_1.ngWalkerFactoryUtils.defaultMetadataReader();
        return {
            ClassDeclaration: function (node) {
                var tsNode = nodeMaps.esTreeNodeToTSNodeMap.get(node);
                if (utils_1.getClassName(tsNode)) {
                    var metadata = metadataReader.read(tsNode);
                    if (metadata instanceof angular_1.ComponentMetadata) {
                        var encapsulationExpression = utils_1.getDecoratorPropertyInitializer(metadata.decorator, 'encapsulation');
                        if (!encapsulationExpression ||
                            (ts.isPropertyAccessExpression(encapsulationExpression) && encapsulationExpression.name.text !== NONE)) {
                            return;
                        }
                        context.report({
                            node: nodeMaps.tsNodeToESTreeNodeMap.get(encapsulationExpression),
                            messageId: 'useComponentViewEncapsulation'
                        });
                    }
                }
            }
        };
    }
});