public void testMultipleImplementations() {
StringBuilder buggyCode = new StringBuilder();
buggyCode.append("import com.google.gwt.core.client.JavaScriptObject;\n");
buggyCode.append("public class Buggy {\n");
buggyCode.append(" static interface Squeaks {\n");
buggyCode.append(" public void squeak();\n");
buggyCode.append(" }\n");
buggyCode.append(" static class Squeaker extends JavaScriptObject implements Squeaks {\n");
buggyCode.append(" public final void squeak() { }\n");
buggyCode.append(" protected Squeaker() { }\n");
buggyCode.append(" }\n");
buggyCode.append(" static class Squeaker2 extends JavaScriptObject implements Squeaks {\n");
buggyCode.append(" public final void squeak() { }\n");
buggyCode.append(" protected Squeaker2() { }\n");
buggyCode.append(" }\n");
buggyCode.append("}\n");
shouldGenerateError(
buggyCode,
"Line 10: "
+ JSORestrictionsChecker.errAlreadyImplemented(
"Buggy$Squeaks", "Buggy$Squeaker", "Buggy$Squeaker2"));
}
/**
* A callback after the JDT compiler has compiled a .java file and created a matching
* CompilationUnitDeclaration. We take this opportunity to create a matching CompilationUnit.
*/
@Override
public void process(
CompilationUnitBuilder builder,
CompilationUnitDeclaration cud,
List<CompiledClass> compiledClasses) {
Event event = SpeedTracerLogger.start(DevModeEventType.CSB_PROCESS);
try {
Map<MethodDeclaration, JsniMethod> jsniMethods =
JsniCollector.collectJsniMethods(
cud,
builder.getSourceMapPath(),
builder.getSource(),
JsRootScope.INSTANCE,
DummyCorrelationFactory.INSTANCE);
JSORestrictionsChecker.check(jsoState, cud);
// JSNI check + collect dependencies.
final Set<String> jsniDeps = new HashSet<String>();
Map<String, Binding> jsniRefs = new HashMap<String, Binding>();
JsniChecker.check(
cud,
jsoState,
jsniMethods,
jsniRefs,
new JsniChecker.TypeResolver() {
@Override
public ReferenceBinding resolveType(String sourceOrBinaryName) {
ReferenceBinding resolveType = compiler.resolveType(sourceOrBinaryName);
if (resolveType != null) {
jsniDeps.add(String.valueOf(resolveType.qualifiedSourceName()));
}
return resolveType;
}
});
Map<TypeDeclaration, Binding[]> artificialRescues =
new HashMap<TypeDeclaration, Binding[]>();
ArtificialRescueChecker.check(cud, builder.isGenerated(), artificialRescues);
if (compilerContext.shouldCompileMonolithic()) {
// GWT drives JDT in a way that allows missing references in the source to be resolved
// to precompiled bytecode on disk (see INameEnvironment). This is done so that
// annotations can be supplied in bytecode form only. But since no AST is available for
// these types it creates the danger that some functional class (not just an annotation)
// gets filled in but is missing AST. This would cause later compiler stages to fail.
//
// Library compilation needs to ignore this check since it is expected behavior for the
// source being compiled in a library to make references to other types which are only
// available as bytecode coming out of dependency libraries.
//
// But if the referenced bytecode did not come from a dependency library but instead was
// free floating in the classpath, then there is no guarrantee that AST for it was ever
// seen and translated to JS anywhere in the dependency tree. This would be a mistake.
//
// TODO(stalcup): add a more specific check for library compiles such that binary types
// can be referenced but only if they are an Annotation or if the binary type comes from
// a dependency library.
BinaryTypeReferenceRestrictionsChecker.check(cud);
}
MethodArgNamesLookup methodArgs =
MethodParamCollector.collect(cud, builder.getSourceMapPath());
Interner<String> interner = StringInterner.get();
String packageName = interner.intern(Shared.getPackageName(builder.getTypeName()));
List<String> unresolvedQualified = new ArrayList<String>();
List<String> unresolvedSimple = new ArrayList<String>();
for (char[] simpleRef : cud.compilationResult().simpleNameReferences) {
unresolvedSimple.add(interner.intern(String.valueOf(simpleRef)));
}
for (char[][] qualifiedRef : cud.compilationResult().qualifiedReferences) {
unresolvedQualified.add(interner.intern(CharOperation.toString(qualifiedRef)));
}
for (String jsniDep : jsniDeps) {
unresolvedQualified.add(interner.intern(jsniDep));
}
ArrayList<String> apiRefs = compiler.collectApiRefs(cud);
for (int i = 0; i < apiRefs.size(); ++i) {
apiRefs.set(i, interner.intern(apiRefs.get(i)));
}
Dependencies dependencies =
new Dependencies(packageName, unresolvedQualified, unresolvedSimple, apiRefs);
List<JDeclaredType> types = Collections.emptyList();
if (!cud.compilationResult().hasErrors()) {
// Make a GWT AST.
types =
astBuilder.process(
cud, builder.getSourceMapPath(), artificialRescues, jsniMethods, jsniRefs);
}
for (CompiledClass cc : compiledClasses) {
allValidClasses.put(cc.getSourceName(), cc);
}
builder
.setClasses(compiledClasses)
.setTypes(types)
.setDependencies(dependencies)
.setJsniMethods(jsniMethods.values())
.setMethodArgs(methodArgs)
.setProblems(cud.compilationResult().getProblems());
buildQueue.add(builder);
} finally {
event.end();
}
}
