public CompileMoreLater(
CompilerContext compilerContext, AdditionalTypeProviderDelegate delegate) {
this.compilerContext = compilerContext;
this.compiler = new JdtCompiler(compilerContext, new UnitProcessorImpl());
this.suppressErrors = !compilerContext.getOptions().isStrict();
compiler.setAdditionalTypeProviderDelegate(delegate);
}
/** Use previously compiled {@link CompilationUnit}s to pre-populate the unit cache. */
public static void addArchive(
CompilerContext compilerContext, CompilationUnitArchive compilationUnitArchive) {
UnitCache unitCache = compilerContext.getUnitCache();
for (CachedCompilationUnit archivedUnit : compilationUnitArchive.getUnits().values()) {
if (archivedUnit.getTypesSerializedVersion() != GwtAstBuilder.getSerializationVersion()) {
continue;
}
CompilationUnit cachedCompilationUnit = unitCache.find(archivedUnit.getResourcePath());
// A previously cached unit might be from the persistent cache or another
// archive.
if (cachedCompilationUnit == null
|| cachedCompilationUnit.getLastModified() < archivedUnit.getLastModified()) {
unitCache.addArchivedUnit(archivedUnit);
}
}
}
public void assertHonorsStrictResources(boolean strictResources)
throws UnableToCompleteException {
TreeLogger logger = TreeLogger.NULL;
compilerContext.getOptions().setEnforceStrictResources(strictResources);
ModuleDef emptyModule =
ModuleDefLoader.loadFromClassPath(
logger, compilerContext, "com.google.gwt.dev.cfg.testdata.merging.Empty");
Resource sourceFile =
emptyModule.findSourceFile("com/google/gwt/dev/cfg/testdata/merging/client/InOne.java");
Resource publicFile = emptyModule.findPublicFile("Public.java");
if (strictResources) {
// Empty.gwt.xml did not register any source or public paths and the strictResource setting is
// blocking the implicit addition of any default entries. So these resource searches should
// fail.
assertNull(sourceFile);
assertNull(publicFile);
} else {
assertNotNull(sourceFile);
assertNotNull(publicFile);
}
}
/**
* Compile new generated units into an existing state.
*
* <p>TODO: maybe use a finer brush than to synchronize the whole thing.
*/
synchronized Collection<CompilationUnit> doBuildGeneratedTypes(
TreeLogger logger,
CompilerContext compilerContext,
Collection<GeneratedUnit> generatedUnits,
CompileMoreLater compileMoreLater)
throws UnableToCompleteException {
UnitCache unitCache = compilerContext.getUnitCache();
// Units we definitely want to build.
List<CompilationUnitBuilder> builders = new ArrayList<CompilationUnitBuilder>();
// Units we don't want to rebuild unless we have to.
Map<CompilationUnitBuilder, CompilationUnit> cachedUnits =
new IdentityHashMap<CompilationUnitBuilder, CompilationUnit>();
// For each incoming generated Java source file...
for (GeneratedUnit generatedUnit : generatedUnits) {
// Create a builder for all incoming units.
CompilationUnitBuilder builder = CompilationUnitBuilder.create(generatedUnit);
// Look for units previously compiled
CompilationUnit cachedUnit = unitCache.find(builder.getContentId());
if (cachedUnit != null) {
// Recompile generated units with errors so source can be dumped.
if (!cachedUnit.isError()) {
cachedUnits.put(builder, cachedUnit);
compileMoreLater.addValidUnit(cachedUnit);
continue;
}
}
builders.add(builder);
}
return compileMoreLater.compile(
logger,
compilerContext,
builders,
cachedUnits,
CompilerEventType.JDT_COMPILER_CSB_GENERATED);
}
/**
* Build a new compilation state from a source oracle. Allow the caller to specify a compiler
* delegate that will handle undefined names.
*
* <p>TODO: maybe use a finer brush than to synchronize the whole thing.
*/
public synchronized CompilationState doBuildFrom(
TreeLogger logger,
CompilerContext compilerContext,
Set<Resource> resources,
AdditionalTypeProviderDelegate compilerDelegate)
throws UnableToCompleteException {
UnitCache unitCache = compilerContext.getUnitCache();
// Units we definitely want to build.
List<CompilationUnitBuilder> builders = new ArrayList<CompilationUnitBuilder>();
// Units we don't want to rebuild unless we have to.
Map<CompilationUnitBuilder, CompilationUnit> cachedUnits =
new IdentityHashMap<CompilationUnitBuilder, CompilationUnit>();
CompileMoreLater compileMoreLater = new CompileMoreLater(compilerContext, compilerDelegate);
// For each incoming Java source file...
for (Resource resource : resources) {
// Create a builder for all incoming units.
CompilationUnitBuilder builder = CompilationUnitBuilder.create(resource);
CompilationUnit cachedUnit = unitCache.find(resource.getPathPrefix() + resource.getPath());
// Try to rescue cached units from previous sessions where a jar has been
// recompiled.
if (cachedUnit != null && cachedUnit.getLastModified() != resource.getLastModified()) {
unitCache.remove(cachedUnit);
if (cachedUnit instanceof CachedCompilationUnit
&& cachedUnit.getContentId().equals(builder.getContentId())) {
CachedCompilationUnit updatedUnit =
new CachedCompilationUnit(
(CachedCompilationUnit) cachedUnit,
resource.getLastModified(),
resource.getLocation());
unitCache.add(updatedUnit);
} else {
cachedUnit = null;
}
}
if (cachedUnit != null) {
cachedUnits.put(builder, cachedUnit);
compileMoreLater.addValidUnit(cachedUnit);
continue;
}
builders.add(builder);
}
if (logger.isLoggable(TreeLogger.TRACE)) {
logger.log(
TreeLogger.TRACE,
"Found "
+ cachedUnits.size()
+ " cached/archived units. Used "
+ cachedUnits.size()
+ " / "
+ resources.size()
+ " units from cache.");
}
Collection<CompilationUnit> resultUnits =
compileMoreLater.compile(
logger,
compilerContext,
builders,
cachedUnits,
CompilerEventType.JDT_COMPILER_CSB_FROM_ORACLE);
boolean compileMonolithic = compilerContext.shouldCompileMonolithic();
TypeOracle typeOracle = null;
CompilationUnitTypeOracleUpdater typeOracleUpdater = null;
if (compileMonolithic) {
typeOracle = new TypeOracle();
typeOracleUpdater = new CompilationUnitTypeOracleUpdater(typeOracle);
} else {
typeOracle = new LibraryTypeOracle(compilerContext);
typeOracleUpdater = ((LibraryTypeOracle) typeOracle).getTypeOracleUpdater();
}
return new CompilationState(
logger, compilerContext, typeOracle, typeOracleUpdater, resultUnits, compileMoreLater);
}
/**
* Compiles the source code in each supplied CompilationUnitBuilder into a CompilationUnit and
* reports errors.
*
* <p>A compilation unit is considered invalid if any of its dependencies (recursively) isn't
* being compiled and isn't in allValidClasses, or if it has a signature that doesn't match a
* dependency. Valid compilation units will be added to cachedUnits and the unit cache, and
* their types will be added to allValidClasses. Invalid compilation units will be removed.
*
* <p>I/O: serializes the AST of each Java type to DiskCache. (This happens even if the
* compilation unit is later dropped.) If we're using the persistent unit cache, each valid unit
* will also be serialized to the gwt-unitcache file. (As a result, each AST will be copied
* there from the DiskCache.) A new persistent unit cache file will be created each time
* compile() is called (if there's at least one valid unit) and the entire cache will be
* rewritten to disk every {@link PersistentUnitCache#CACHE_FILE_THRESHOLD} files.
*
* <p>This function won't report errors in invalid source files unless suppressErrors is false.
* Instead, a summary giving the number of invalid files will be logged.
*
* <p>If the JDT compiler aborts, logs an error and throws UnableToCompleteException. (This
* doesn't happen for normal compile errors.)
*/
Collection<CompilationUnit> compile(
TreeLogger logger,
CompilerContext compilerContext,
Collection<CompilationUnitBuilder> builders,
Map<CompilationUnitBuilder, CompilationUnit> cachedUnits,
EventType eventType)
throws UnableToCompleteException {
UnitCache unitCache = compilerContext.getUnitCache();
// Initialize the set of valid classes to the initially cached units.
for (CompilationUnit unit : cachedUnits.values()) {
for (CompiledClass cc : unit.getCompiledClasses()) {
// Map by source name.
String sourceName = cc.getSourceName();
allValidClasses.put(sourceName, cc);
}
}
ArrayList<CompilationUnit> resultUnits = new ArrayList<CompilationUnit>();
do {
final TreeLogger branch = logger.branch(TreeLogger.TRACE, "Compiling...");
// Compile anything that needs to be compiled.
buildQueue = new LinkedBlockingQueue<CompilationUnitBuilder>();
final ArrayList<CompilationUnit> newlyBuiltUnits = new ArrayList<CompilationUnit>();
final CompilationUnitBuilder sentinel = CompilationUnitBuilder.create((GeneratedUnit) null);
final Throwable[] workerException = new Throwable[1];
final ProgressLogger progressLogger =
new ProgressLogger(branch, TreeLogger.TRACE, builders.size(), 10);
Thread buildThread =
new Thread() {
@Override
public void run() {
int processedCompilationUnitBuilders = 0;
try {
do {
CompilationUnitBuilder builder = buildQueue.take();
if (!progressLogger.isTimerStarted()) {
// Set start time here, after first job has arrived, since it can take a
// little
// while for the first job to arrive, and this helps with the accuracy of the
// estimated times.
progressLogger.startTimer();
}
if (builder == sentinel) {
return;
}
// Expensive, must serialize GWT AST types to bytes.
CompilationUnit unit = builder.build();
newlyBuiltUnits.add(unit);
processedCompilationUnitBuilders++;
progressLogger.updateProgress(processedCompilationUnitBuilders);
} while (true);
} catch (Throwable e) {
workerException[0] = e;
}
}
};
buildThread.setName("CompilationUnitBuilder");
buildThread.start();
Event jdtCompilerEvent = SpeedTracerLogger.start(eventType);
long compilationStartNanos = System.nanoTime();
try {
compiler.doCompile(branch, builders);
} finally {
jdtCompilerEvent.end();
}
buildQueue.add(sentinel);
try {
buildThread.join();
long compilationNanos = System.nanoTime() - compilationStartNanos;
// Convert nanos to seconds.
double compilationSeconds = compilationNanos / (double) TimeUnit.SECONDS.toNanos(1);
branch.log(
TreeLogger.TRACE,
String.format("Compilation completed in %.02f seconds", compilationSeconds));
if (workerException[0] != null) {
throw workerException[0];
}
} catch (RuntimeException e) {
throw e;
} catch (Throwable e) {
throw new RuntimeException("Exception processing units", e);
} finally {
buildQueue = null;
}
resultUnits.addAll(newlyBuiltUnits);
builders.clear();
// Resolve all newly built unit deps against the global classes.
for (CompilationUnit unit : newlyBuiltUnits) {
unit.getDependencies().resolve(allValidClasses);
}
/*
* Invalidate any cached units with invalid refs.
*/
Collection<CompilationUnit> invalidatedUnits = new ArrayList<CompilationUnit>();
for (Iterator<Entry<CompilationUnitBuilder, CompilationUnit>> it =
cachedUnits.entrySet().iterator();
it.hasNext(); ) {
Entry<CompilationUnitBuilder, CompilationUnit> entry = it.next();
CompilationUnit unit = entry.getValue();
boolean isValid = unit.getDependencies().validate(logger, allValidClasses);
if (isValid && unit.isError()) {
// See if the unit has classes that can't provide a
// NameEnvironmentAnswer
for (CompiledClass cc : unit.getCompiledClasses()) {
try {
cc.getNameEnvironmentAnswer();
} catch (ClassFormatException ex) {
isValid = false;
break;
}
}
}
if (!isValid) {
if (logger.isLoggable(TreeLogger.TRACE)) {
logger.log(TreeLogger.TRACE, "Invalid Unit: " + unit.getTypeName());
}
invalidatedUnits.add(unit);
builders.add(entry.getKey());
it.remove();
}
}
if (invalidatedUnits.size() > 0) {
if (logger.isLoggable(TreeLogger.TRACE)) {
logger.log(TreeLogger.TRACE, "Invalid units found: " + invalidatedUnits.size());
}
}
// Any units we invalidated must now be removed from the valid classes.
for (CompilationUnit unit : invalidatedUnits) {
for (CompiledClass cc : unit.getCompiledClasses()) {
allValidClasses.remove(cc.getSourceName());
}
}
} while (builders.size() > 0);
for (CompilationUnit unit : resultUnits) {
unitCache.add(unit);
}
// Any remaining cached units are valid now.
resultUnits.addAll(cachedUnits.values());
// Done with a pass of the build - tell the cache its OK to cleanup
// stale cache files.
unitCache.cleanup(logger);
// Sort, then report all errors (re-report for cached units).
Collections.sort(resultUnits, CompilationUnit.COMPARATOR);
logger = logger.branch(TreeLogger.DEBUG, "Validating units:");
int errorCount = 0;
for (CompilationUnit unit : resultUnits) {
if (CompilationProblemReporter.reportErrors(logger, unit, suppressErrors)) {
errorCount++;
}
}
if (suppressErrors
&& errorCount > 0
&& !logger.isLoggable(TreeLogger.TRACE)
&& logger.isLoggable(TreeLogger.INFO)) {
logger.log(
TreeLogger.INFO,
"Ignored "
+ errorCount
+ " unit"
+ (errorCount > 1 ? "s" : "")
+ " with compilation errors in first pass.\n"
+ "Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.");
}
return resultUnits;
}