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Cache constructed scopes for files

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This commit is contained in:
Nikolay Krasko
2012-09-19 16:28:31 +04:00
parent bffbe1dd38
commit a37f2e9d2d
1 changed files with 42 additions and 35 deletions
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compiler/frontend/src/org/jetbrains/jet/lang/resolve/lazy/ScopeProvider.java
+42 -35
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@@ -26,6 +26,9 @@ import org.jetbrains.jet.lang.resolve.ImportsResolver;
import org.jetbrains.jet.lang.resolve.name.FqName;
import org.jetbrains.jet.lang.resolve.scopes.*;
import java.util.Map;
import java.util.WeakHashMap;
/**
* @author abreslav
*/
@@ -37,46 +40,50 @@ public class ScopeProvider {
this.resolveSession = resolveSession;
}
private final Map<JetFile, JetScope> fileScopeCache = new WeakHashMap<JetFile, JetScope>();
// This scope does not contain imported functions
@NotNull
public JetScope getFileScopeForDeclarationResolution(JetFile file) {
// package
JetNamespaceHeader header = file.getNamespaceHeader();
if (header == null) {
throw new IllegalArgumentException("Scripts are not supported: " + file.getName());
if (!fileScopeCache.containsKey(file)) {
// package
JetNamespaceHeader header = file.getNamespaceHeader();
if (header == null) {
throw new IllegalArgumentException("Scripts are not supported: " + file.getName());
}
FqName fqName = new FqName(header.getQualifiedName());
NamespaceDescriptor packageDescriptor = resolveSession.getPackageDescriptorByFqName(fqName);
if (packageDescriptor == null) {
throw new IllegalStateException("Package not found: " + fqName + " maybe the file is not in scope of this resolve session: " + file.getName());
}
WritableScope fileScope = new WritableScopeImpl(
JetScope.EMPTY, packageDescriptor, RedeclarationHandler.DO_NOTHING, "File scope for declaration resolution");
fileScope.changeLockLevel(WritableScope.LockLevel.BOTH);
NamespaceDescriptor rootPackageDescriptor = resolveSession.getPackageDescriptorByFqName(FqName.ROOT);
if (rootPackageDescriptor == null) {
throw new IllegalStateException("Root package not found");
}
// Don't import twice
if (!packageDescriptor.getQualifiedName().equals(FqName.ROOT)) {
fileScope.importScope(rootPackageDescriptor.getMemberScope());
}
ImportsResolver.processImportsInFile(true, fileScope, Lists.newArrayList(file.getImportDirectives()),
rootPackageDescriptor.getMemberScope(),
resolveSession.getModuleConfiguration(), resolveSession.getTrace(),
resolveSession.getInjector().getQualifiedExpressionResolver());
fileScope.changeLockLevel(WritableScope.LockLevel.READING);
fileScopeCache.put(file, new ChainedScope(packageDescriptor, packageDescriptor.getMemberScope(), fileScope));
}
FqName fqName = new FqName(header.getQualifiedName());
NamespaceDescriptor packageDescriptor = resolveSession.getPackageDescriptorByFqName(fqName);
if (packageDescriptor == null) {
throw new IllegalStateException("Package not found: " + fqName + " maybe the file is not in scope of this resolve session: " + file.getName());
}
WritableScope fileScope = new WritableScopeImpl(
JetScope.EMPTY, packageDescriptor, RedeclarationHandler.DO_NOTHING, "File scope for declaration resolution");
fileScope.changeLockLevel(WritableScope.LockLevel.BOTH);
NamespaceDescriptor rootPackageDescriptor = resolveSession.getPackageDescriptorByFqName(FqName.ROOT);
if (rootPackageDescriptor == null) {
throw new IllegalStateException("Root package not found");
}
// Don't import twice
if (!packageDescriptor.getQualifiedName().equals(FqName.ROOT)) {
fileScope.importScope(rootPackageDescriptor.getMemberScope());
}
ImportsResolver.processImportsInFile(true, fileScope, Lists.newArrayList(file.getImportDirectives()),
rootPackageDescriptor.getMemberScope(),
resolveSession.getModuleConfiguration(), resolveSession.getTrace(),
resolveSession.getInjector().getQualifiedExpressionResolver());
fileScope.changeLockLevel(WritableScope.LockLevel.READING);
// TODO: Cache
return new ChainedScope(packageDescriptor, packageDescriptor.getMemberScope(), fileScope);
return fileScopeCache.get(file);
}
@NotNull