| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| import 'package:analyzer/analyzer.dart'; |
| |
| int main() { |
| // These files just contain imports to the part files; |
| final CompilationUnit uiUnit = parseDartFile('lib/ui/ui.dart', |
| parseFunctionBodies: false, suppressErrors: false); |
| final CompilationUnit webUnit = parseDartFile('lib/stub_ui/lib/ui.dart', |
| parseFunctionBodies: false, suppressErrors: false); |
| final Map<String, ClassDeclaration> uiClasses = <String, ClassDeclaration>{}; |
| final Map<String, ClassDeclaration> webClasses = <String, ClassDeclaration>{}; |
| |
| // Gather all public classes from each library. For now we are skiping |
| // other top level members. |
| _collectPublicClasses(uiUnit, uiClasses, 'lib/ui/'); |
| _collectPublicClasses(webUnit, webClasses, 'lib/stub_ui/lib/'); |
| |
| if (uiClasses.isEmpty || webClasses.isEmpty) { |
| print('Warning: did not resolve any classes.'); |
| } |
| |
| bool failed = false; |
| print('Checking ${uiClasses.length} public classes.'); |
| for (String className in uiClasses.keys) { |
| final ClassDeclaration uiClass = uiClasses[className]; |
| final ClassDeclaration webClass = webClasses[className]; |
| // If the web class is missing there isn't much left to do here. Print a |
| // warning and move along. |
| if (webClass == null) { |
| failed = true; |
| print('Warning: lib/ui/ui.dart contained public class $className, but ' |
| 'this was missing from lib/stub_ui/ui.dart.'); |
| continue; |
| } |
| // Next will check that the public methods exposed in each library are |
| // identical. |
| final Map<String, MethodDeclaration> uiMethods = <String, MethodDeclaration>{}; |
| final Map<String, MethodDeclaration> webMethods = <String, MethodDeclaration>{}; |
| _collectPublicMethods(uiClass, uiMethods); |
| _collectPublicMethods(webClass, webMethods); |
| |
| for (String methodName in uiMethods.keys) { |
| final MethodDeclaration uiMethod = uiMethods[methodName]; |
| final MethodDeclaration webMethod = webMethods[methodName]; |
| if (webMethod == null) { |
| failed = true; |
| print( |
| 'Warning: lib/ui/ui.dart $className.$methodName is missing from lib/stub_ui/ui.dart.', |
| ); |
| continue; |
| } |
| if (uiMethod.parameters == null || webMethod.parameters == null) { |
| continue; |
| } |
| if (uiMethod.parameters.parameters.length != webMethod.parameters.parameters.length) { |
| failed = true; |
| print( |
| 'Warning: lib/ui/ui.dart $className.$methodName has a different parameter ' |
| 'length than in lib/stub_ui/ui.dart.'); |
| } |
| // Technically you could re-order named parameters and still be valid, |
| // but we enforce that they are identical. |
| for (int i = 0; i < uiMethod.parameters.parameters.length && i < webMethod.parameters.parameters.length; i++) { |
| final FormalParameter uiParam = uiMethod.parameters.parameters[i]; |
| final FormalParameter webParam = webMethod.parameters.parameters[i]; |
| if (webParam.identifier.name != uiParam.identifier.name) { |
| failed = true; |
| print('Warning: lib/ui/ui.dart $className.$methodName parameter $i' |
| ' ${uiParam.identifier.name} has a different name in lib/stub_ui/ui.dart.'); |
| } |
| if (uiParam.isPositional && !webParam.isPositional) { |
| failed = true; |
| print('Warning: lib/ui/ui.dart $className.$methodName parameter $i' |
| '${uiParam.identifier.name} is positional, but not in lib/stub_ui/ui.dart.'); |
| } |
| if (uiParam.isNamed && !webParam.isNamed) { |
| failed = true; |
| print('Warning: lib/ui/ui.dart $className.$methodName parameter $i' |
| '${uiParam.identifier.name} is named, but not in lib/stub_ui/ui.dart.'); |
| } |
| } |
| } |
| } |
| if (failed) { |
| print('Failure!'); |
| return 1; |
| } |
| print('Success!'); |
| return 0; |
| } |
| |
| // Collects all public classes defined by the part files of [unit]. |
| void _collectPublicClasses(CompilationUnit unit, |
| Map<String, ClassDeclaration> destination, String root) { |
| for (Directive directive in unit.directives) { |
| if (directive is! PartDirective) { |
| continue; |
| } |
| final PartDirective partDirective = directive; |
| final String literalUri = partDirective.uri.toString(); |
| final CompilationUnit subUnit = parseDartFile( |
| '$root${literalUri.substring(1, literalUri.length - 1)}', |
| parseFunctionBodies: false, |
| suppressErrors: false, |
| ); |
| for (CompilationUnitMember member in subUnit.declarations) { |
| if (member is! ClassDeclaration) { |
| continue; |
| } |
| final ClassDeclaration classDeclaration = member; |
| if (classDeclaration.name.name.startsWith('_')) { |
| continue; |
| } |
| destination[classDeclaration.name.name] = classDeclaration; |
| } |
| } |
| } |
| |
| void _collectPublicMethods(ClassDeclaration classDeclaration, |
| Map<String, MethodDeclaration> destination) { |
| for (ClassMember member in classDeclaration.members) { |
| if (member is! MethodDeclaration) { |
| continue; |
| } |
| final MethodDeclaration method = member; |
| if (method.name.name.startsWith('_')) { |
| continue; |
| } |
| destination[method.name.name] = method; |
| } |
| } |