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org.jetbrains.k2js.translate.context.TranslationContext Maven / Gradle / Ivy
/*
* Copyright 2010-2013 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.k2js.translate.context;
import com.google.dart.compiler.backend.js.ast.*;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.lang.descriptors.*;
import org.jetbrains.jet.lang.psi.JetExpression;
import org.jetbrains.jet.lang.reflect.ReflectionTypes;
import org.jetbrains.jet.lang.resolve.BindingContext;
import org.jetbrains.jet.lang.resolve.name.FqName;
import org.jetbrains.k2js.translate.intrinsic.Intrinsics;
import org.jetbrains.k2js.translate.utils.TranslationUtils;
import java.util.HashMap;
import java.util.Map;
import static org.jetbrains.k2js.translate.context.ContextPackage.getNameForCapturedDescriptor;
import static org.jetbrains.k2js.translate.utils.BindingUtils.getDescriptorForElement;
/**
* All the info about the state of the translation process.
*/
public class TranslationContext {
@NotNull
private final DynamicContext dynamicContext;
@NotNull
private final StaticContext staticContext;
@NotNull
private final AliasingContext aliasingContext;
@Nullable
private final UsageTracker usageTracker;
@Nullable
private final TranslationContext parent;
@Nullable
private final DefinitionPlace definitionPlace;
@NotNull
public static TranslationContext rootContext(@NotNull StaticContext staticContext, JsFunction rootFunction) {
DynamicContext rootDynamicContext = DynamicContext.rootContext(rootFunction.getScope(), rootFunction.getBody());
AliasingContext rootAliasingContext = AliasingContext.getCleanContext();
return new TranslationContext(null, staticContext, rootDynamicContext, rootAliasingContext, null, null);
}
private final Map expressionToTempConstVariableCache = new HashMap();
private TranslationContext(
@Nullable TranslationContext parent,
@NotNull StaticContext staticContext,
@NotNull DynamicContext dynamicContext,
@NotNull AliasingContext aliasingContext,
@Nullable UsageTracker usageTracker,
@Nullable DefinitionPlace definitionPlace
) {
this.parent = parent;
this.dynamicContext = dynamicContext;
this.staticContext = staticContext;
this.aliasingContext = aliasingContext;
this.usageTracker = usageTracker;
this.definitionPlace = definitionPlace;
}
@Nullable
public UsageTracker usageTracker() {
return usageTracker;
}
public DynamicContext dynamicContext() {
return dynamicContext;
}
@NotNull
public TranslationContext contextWithScope(@NotNull JsFunction fun) {
return this.newFunctionBody(fun, aliasingContext);
}
@NotNull
public TranslationContext newFunctionBody(@NotNull JsFunction fun, @Nullable AliasingContext aliasingContext) {
DynamicContext dynamicContext = DynamicContext.newContext(fun.getScope(), fun.getBody());
if (aliasingContext == null) {
aliasingContext = this.aliasingContext.inner();
}
return new TranslationContext(this, this.staticContext, dynamicContext, aliasingContext, this.usageTracker, null);
}
@NotNull
public TranslationContext newFunctionBodyWithUsageTracker(@NotNull JsFunction fun, @NotNull MemberDescriptor descriptor) {
DynamicContext dynamicContext = DynamicContext.newContext(fun.getScope(), fun.getBody());
UsageTracker usageTracker = new UsageTracker(this.usageTracker, descriptor, fun.getScope());
return new TranslationContext(this, this.staticContext, dynamicContext, this.aliasingContext.inner(), usageTracker, this.definitionPlace);
}
@NotNull
public TranslationContext innerBlock(@NotNull JsBlock block) {
return new TranslationContext(this, staticContext, dynamicContext.innerBlock(block), aliasingContext, usageTracker, null);
}
@NotNull
public TranslationContext newDeclaration(@NotNull DeclarationDescriptor descriptor, @Nullable DefinitionPlace place) {
DynamicContext dynamicContext = DynamicContext.newContext(getScopeForDescriptor(descriptor), getBlockForDescriptor(descriptor));
return new TranslationContext(this, staticContext, dynamicContext, aliasingContext, usageTracker, place);
}
@NotNull
private TranslationContext innerWithAliasingContext(AliasingContext aliasingContext) {
return new TranslationContext(this, this.staticContext, this.dynamicContext, aliasingContext, this.usageTracker, null);
}
@NotNull
public TranslationContext innerContextWithAliased(@NotNull DeclarationDescriptor correspondingDescriptor, @NotNull JsExpression alias) {
return this.innerWithAliasingContext(aliasingContext.inner(correspondingDescriptor, alias));
}
@NotNull
public TranslationContext innerContextWithAliasesForExpressions(@NotNull Map aliases) {
return this.innerWithAliasingContext(aliasingContext.withExpressionsAliased(aliases));
}
@NotNull
public TranslationContext innerContextWithDescriptorsAliased(@NotNull Map aliases) {
return this.innerWithAliasingContext(aliasingContext.withDescriptorsAliased(aliases));
}
@NotNull
public JsBlock getBlockForDescriptor(@NotNull DeclarationDescriptor descriptor) {
if (descriptor instanceof CallableDescriptor) {
return getFunctionObject((CallableDescriptor) descriptor).getBody();
}
else {
return new JsBlock();
}
}
@NotNull
public BindingContext bindingContext() {
return staticContext.getBindingContext();
}
@NotNull
public JsScope getScopeForDescriptor(@NotNull DeclarationDescriptor descriptor) {
return staticContext.getScopeForDescriptor(descriptor);
}
@NotNull
public JsName getNameForElement(@NotNull PsiElement element) {
DeclarationDescriptor descriptor = getDescriptorForElement(bindingContext(), element);
return getNameForDescriptor(descriptor);
}
@NotNull
public JsName getNameForDescriptor(@NotNull DeclarationDescriptor descriptor) {
return staticContext.getNameForDescriptor(descriptor);
}
@NotNull
public JsName getNameForPackage(@NotNull FqName fqName) {
return staticContext.getNameForPackage(fqName);
}
@NotNull
public JsName declarePropertyOrPropertyAccessorName(@NotNull DeclarationDescriptor descriptor, @NotNull String name, boolean fresh) {
return staticContext.declarePropertyOrPropertyAccessorName(descriptor, name, fresh);
}
@NotNull
public JsNameRef getQualifiedReference(@NotNull DeclarationDescriptor descriptor) {
return staticContext.getQualifiedReference(descriptor);
}
@NotNull
public JsNameRef getQualifiedReference(@NotNull FqName packageFqName) {
return staticContext.getQualifiedReference(packageFqName);
}
@Nullable
public JsNameRef getQualifierForDescriptor(@NotNull DeclarationDescriptor descriptor) {
return staticContext.getQualifierForDescriptor(descriptor);
}
@NotNull
public TemporaryVariable declareTemporary(@Nullable JsExpression initExpression) {
return dynamicContext.declareTemporary(initExpression);
}
@NotNull
public TemporaryConstVariable getOrDeclareTemporaryConstVariable(@NotNull JsExpression expression) {
TemporaryConstVariable tempVar = expressionToTempConstVariableCache.get(expression);
if (tempVar == null) {
TemporaryVariable tmpVar = declareTemporary(expression);
tempVar = new TemporaryConstVariable(tmpVar.name(), tmpVar.assignmentExpression());
expressionToTempConstVariableCache.put(expression, tempVar);
expressionToTempConstVariableCache.put(tmpVar.assignmentExpression(), tempVar);
}
return tempVar;
}
public void associateExpressionToLazyValue(JsExpression expression, TemporaryConstVariable temporaryConstVariable) {
assert expression == temporaryConstVariable.assignmentExpression();
expressionToTempConstVariableCache.put(expression, temporaryConstVariable);
}
@NotNull
public Namer namer() {
return staticContext.getNamer();
}
@NotNull
public Intrinsics intrinsics() {
return staticContext.getIntrinsics();
}
@NotNull
public ReflectionTypes getReflectionTypes() {
return staticContext.getReflectionTypes();
}
@NotNull
public JsProgram program() {
return staticContext.getProgram();
}
@NotNull
public JsScope scope() {
return dynamicContext.getScope();
}
@NotNull
public AliasingContext aliasingContext() {
return aliasingContext;
}
@NotNull
public JsFunction getFunctionObject(@NotNull CallableDescriptor descriptor) {
return staticContext.getFunctionWithScope(descriptor);
}
public void addStatementToCurrentBlock(@NotNull JsStatement statement) {
dynamicContext.jsBlock().getStatements().add(statement);
}
@Nullable
public JsExpression getAliasForDescriptor(@NotNull DeclarationDescriptor descriptor) {
JsNameRef nameRef = captureIfNeedAndGetCapturedName(descriptor);
if (nameRef != null) {
return nameRef;
}
return aliasingContext.getAliasForDescriptor(descriptor);
}
@NotNull
public JsExpression getThisObject(@NotNull ReceiverParameterDescriptor descriptor) {
JsExpression alias = getAliasForDescriptor(descriptor);
return alias == null ? JsLiteral.THIS : alias;
}
@NotNull
private DefinitionPlace getDefinitionPlace() {
if (definitionPlace != null) return definitionPlace;
if (parent != null) return parent.getDefinitionPlace();
throw new AssertionError("Can not find definition place from rootContext(definitionPlace and parent is null)");
}
@NotNull
public JsNameRef define(DeclarationDescriptor descriptor, JsExpression expression) {
String suggestedName = TranslationUtils.getSuggestedNameForInnerDeclaration(this, descriptor);
return getDefinitionPlace().define(suggestedName, expression);
}
@Nullable
private JsNameRef captureIfNeedAndGetCapturedName(DeclarationDescriptor descriptor) {
if (usageTracker != null && descriptor instanceof CallableDescriptor) {
CallableDescriptor callableDescriptor = (CallableDescriptor) descriptor;
usageTracker.used(callableDescriptor);
JsName name = getNameForCapturedDescriptor(usageTracker, callableDescriptor);
if (name != null) return name.makeRef();
}
return null;
}
}
