Converter to Polymer2 classes.
See readme.txt for more information about usages.
Change-Id: I60843b32bc56faa04ad2b70898ab1f5535a2ad71
diff --git a/tools/polygerrit-updater/src/funcToClassConversion/funcToClassBasedElementConverter.ts b/tools/polygerrit-updater/src/funcToClassConversion/funcToClassBasedElementConverter.ts
new file mode 100644
index 0000000..b92a6e9
--- /dev/null
+++ b/tools/polygerrit-updater/src/funcToClassConversion/funcToClassBasedElementConverter.ts
@@ -0,0 +1,131 @@
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import {LegacyLifecycleMethodsArray, LegacyPolymerComponent} from './polymerComponentParser';
+import {LifecycleMethodsBuilder} from './lifecycleMethodsBuilder';
+import {ClassBasedPolymerElement, PolymerElementBuilder} from './polymerElementBuilder';
+import * as codeUtils from '../utils/codeUtils';
+import * as ts from 'typescript';
+
+export class PolymerFuncToClassBasedConverter {
+ public static convert(component: LegacyPolymerComponent): ClassBasedPolymerElement {
+ const legacySettings = component.componentSettings;
+ const reservedDeclarations = legacySettings.reservedDeclarations;
+
+ if(!reservedDeclarations.is) {
+ throw new Error("Legacy component doesn't have 'is' property");
+ }
+ const className = this.generateClassNameFromTagName(reservedDeclarations.is.data);
+ const updater = new PolymerElementBuilder(component, className);
+ updater.addIsAccessor(reservedDeclarations.is.data);
+
+ if(reservedDeclarations.properties) {
+ updater.addPolymerPropertiesAccessor(reservedDeclarations.properties);
+ }
+
+ updater.addMixin("Polymer.Element");
+ updater.addMixin("Polymer.LegacyElementMixin");
+ updater.addMixin("Polymer.GestureEventListeners");
+
+ if(reservedDeclarations._legacyUndefinedCheck) {
+ updater.addMixin("Polymer.LegacyDataMixin");
+ }
+
+ if(reservedDeclarations.behaviors) {
+ updater.addMixin("Polymer.mixinBehaviors", [reservedDeclarations.behaviors.data]);
+ const mixinNames = this.getMixinNamesFromBehaviors(reservedDeclarations.behaviors.data);
+ const jsDocLines = mixinNames.map(mixinName => {
+ return `@appliesMixin ${mixinName}`;
+ });
+ updater.addClassJSDocComments(jsDocLines);
+ }
+
+ if(reservedDeclarations.observers) {
+ updater.addPolymerPropertiesObservers(reservedDeclarations.observers.data);
+ }
+
+ if(reservedDeclarations.keyBindings) {
+ updater.addKeyBindings(reservedDeclarations.keyBindings.data);
+ }
+
+
+ const lifecycleBuilder = new LifecycleMethodsBuilder();
+ if (reservedDeclarations.listeners) {
+ lifecycleBuilder.addListeners(reservedDeclarations.listeners.data, legacySettings.ordinaryMethods);
+ }
+
+ if (reservedDeclarations.hostAttributes) {
+ lifecycleBuilder.addHostAttributes(reservedDeclarations.hostAttributes.data);
+ }
+
+ for(const name of LegacyLifecycleMethodsArray) {
+ const existingMethod = legacySettings.lifecycleMethods.get(name);
+ if(existingMethod) {
+ lifecycleBuilder.addLegacyLifecycleMethod(name, existingMethod)
+ }
+ }
+
+ const newLifecycleMethods = lifecycleBuilder.buildNewMethods();
+ updater.addLifecycleMethods(newLifecycleMethods);
+
+
+ updater.addOrdinaryMethods(legacySettings.ordinaryMethods);
+ updater.addOrdinaryGetAccessors(legacySettings.ordinaryGetAccessors);
+ updater.addOrdinaryShorthandProperties(legacySettings.ordinaryShorthandProperties);
+ updater.addOrdinaryPropertyAssignments(legacySettings.ordinaryPropertyAssignments);
+
+ return updater.build();
+ }
+
+ private static generateClassNameFromTagName(tagName: string) {
+ let result = "";
+ let nextUppercase = true;
+ for(const ch of tagName) {
+ if (ch === '-') {
+ nextUppercase = true;
+ continue;
+ }
+ result += nextUppercase ? ch.toUpperCase() : ch;
+ nextUppercase = false;
+ }
+ return result;
+ }
+
+ private static getMixinNamesFromBehaviors(behaviors: ts.ArrayLiteralExpression): string[] {
+ return behaviors.elements.map((expression) => {
+ const propertyAccessExpression = codeUtils.assertNodeKind(expression, ts.SyntaxKind.PropertyAccessExpression) as ts.PropertyAccessExpression;
+ const namespaceName = codeUtils.assertNodeKind(propertyAccessExpression.expression, ts.SyntaxKind.Identifier) as ts.Identifier;
+ const behaviorName = propertyAccessExpression.name;
+ if(namespaceName.text === 'Gerrit') {
+ let behaviorNameText = behaviorName.text;
+ const suffix = 'Behavior';
+ if(behaviorNameText.endsWith(suffix)) {
+ behaviorNameText =
+ behaviorNameText.substr(0, behaviorNameText.length - suffix.length);
+ }
+ const mixinName = behaviorNameText + 'Mixin';
+ return `${namespaceName.text}.${mixinName}`
+ } else if(namespaceName.text === 'Polymer') {
+ let behaviorNameText = behaviorName.text;
+ if(behaviorNameText === "IronFitBehavior") {
+ return "Polymer.IronFitMixin";
+ } else if(behaviorNameText === "IronOverlayBehavior") {
+ return "";
+ }
+ throw new Error(`Unsupported behavior: ${propertyAccessExpression.getText()}`);
+ }
+ throw new Error(`Unsupported behavior name ${expression.getFullText()}`)
+ }).filter(name => name.length > 0);
+ }
+}
