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/*******************************************************************************
* Copyright (c) 2017 GK Software AG, and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Stephan Herrmann - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.compiler.lookup;
import java.util.Collection;
import java.util.HashMap;
import java.util.function.IntFunction;
import java.util.stream.Stream;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.ModuleDeclaration;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
import org.eclipse.jdt.internal.compiler.util.SimpleLookupTable;
public class SourceModuleBinding extends ModuleBinding {
final public CompilationUnitScope scope; // TODO(SHMOD): consider cleanup at end of compile
private SimpleLookupTable storedAnnotations = null;
/**
* Construct a named module from source.
* <p><strong>Side effects:</strong> adds the new module to root.knownModules,
* creates a new LookupEnvironment and links that into the scope.</p>
*/
public SourceModuleBinding(char[] moduleName, CompilationUnitScope scope, LookupEnvironment rootEnv) {
super(moduleName);
rootEnv.knownModules.put(moduleName, this);
this.environment = new LookupEnvironment(rootEnv, this);
this.scope = scope;
scope.environment = this.environment;
}
public void setRequires(ModuleBinding[] requires, ModuleBinding[] requiresTransitive) {
// TODO(SHMOD): it's a bit awkward that we may get called after applyModuleUpdates() has already worked.
ModuleBinding javaBase = this.environment.javaBaseModule();
if (javaBase.isUnnamed()) // happens when no java.base can be found in the name environment.
javaBase = null;
this.requires = merge(this.requires, requires, javaBase, ModuleBinding[]::new);
this.requiresTransitive = merge(this.requiresTransitive, requiresTransitive, null, ModuleBinding[]::new);
}
public void setUses(TypeBinding[] uses) {
this.uses = merge(this.uses, uses, null, TypeBinding[]::new);
}
public void setServices(TypeBinding[] services) {
this.services = merge(this.services, services, null, TypeBinding[]::new);
}
public void setImplementations(TypeBinding infBinding, Collection<TypeBinding> resolvedImplementations) {
if (this.implementations == null)
this.implementations = new HashMap<>();
this.implementations.put(infBinding, resolvedImplementations.toArray(new TypeBinding[resolvedImplementations.size()]));
}
private <T> T[] merge(T[] one, T[] two, T extra, IntFunction<T[]> supplier) {
if (one.length == 0 && extra == null) {
if (two.length > 0)
return two;
return one;
}
int len0 = extra == null ? 0 : 1;
int len1 = one.length;
int len2 = two.length;
T[] result = supplier.apply(len0+len1+len2);
if (extra != null)
result[0] = extra;
System.arraycopy(one, 0, result, len0, len1);
System.arraycopy(two, 0, result, len0+len1, len2);
return result;
}
@Override
Stream<ModuleBinding> getRequiredModules(boolean transitiveOnly) {
if (this.requires == NO_MODULES) {
this.scope.referenceContext.moduleDeclaration.resolveModuleDirectives(this.scope);
}
return super.getRequiredModules(transitiveOnly);
}
@Override
public ModuleBinding[] getAllRequiredModules() {
if (this.scope != null)
this.scope.referenceContext.moduleDeclaration.resolveModuleDirectives(this.scope);
return super.getAllRequiredModules();
}
public long getAnnotationTagBits() {
//TODO: This code is untested as we don't yet get a scope in ModuleBinding
if ((this.tagBits & TagBits.AnnotationResolved) == 0 && this.scope != null) {
ModuleDeclaration module = this.scope.referenceContext.moduleDeclaration;
ASTNode.resolveAnnotations(module.scope, module.annotations, this);
if ((this.tagBits & TagBits.AnnotationDeprecated) != 0) {
this.modifiers |= ClassFileConstants.AccDeprecated;
this.tagBits |= TagBits.DeprecatedAnnotationResolved;
}
this.tagBits |= TagBits.AnnotationResolved;
}
return this.tagBits;
}
public AnnotationBinding[] getAnnotations() {
return retrieveAnnotations(this);
}
public AnnotationHolder retrieveAnnotationHolder(Binding binding, boolean forceInitialization) {
SimpleLookupTable store = storedAnnotations(forceInitialization, false);
return store == null ? null : (AnnotationHolder) store.get(binding);
}
AnnotationBinding[] retrieveAnnotations(Binding binding) {
AnnotationHolder holder = retrieveAnnotationHolder(binding, true);
return holder == null ? Binding.NO_ANNOTATIONS : holder.getAnnotations();
}
public void setAnnotations(AnnotationBinding[] annotations, boolean forceStore) {
storeAnnotations(this, annotations, forceStore);
}
void storeAnnotationHolder(Binding binding, AnnotationHolder holder) {
if (holder == null) {
SimpleLookupTable store = storedAnnotations(false, false);
if (store != null)
store.removeKey(binding);
} else {
SimpleLookupTable store = storedAnnotations(true, false);
if (store != null)
store.put(binding, holder);
}
}
void storeAnnotations(Binding binding, AnnotationBinding[] annotations, boolean forceStore) {
AnnotationHolder holder = null;
if (annotations == null || annotations.length == 0) {
SimpleLookupTable store = storedAnnotations(false, forceStore);
if (store != null)
holder = (AnnotationHolder) store.get(binding);
if (holder == null) return; // nothing to delete
} else {
SimpleLookupTable store = storedAnnotations(true, forceStore);
if (store == null) return; // not supported
holder = (AnnotationHolder) store.get(binding);
if (holder == null)
holder = new AnnotationHolder();
}
storeAnnotationHolder(binding, holder.setAnnotations(annotations));
}
SimpleLookupTable storedAnnotations(boolean forceInitialize, boolean forceStore) {
if (forceInitialize && this.storedAnnotations == null && this.scope != null) { // scope null when no annotation cached, and type got processed fully (159631)
this.scope.referenceCompilationUnit().compilationResult.hasAnnotations = true;
final CompilerOptions globalOptions = this.scope.environment().globalOptions;
if (!globalOptions.storeAnnotations && !forceStore)
return null; // not supported during this compile
this.storedAnnotations = new SimpleLookupTable(3);
}
return this.storedAnnotations;
}
}
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