/*
* Copyright 2010-2015 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.kotlin.js.translate.operation;
import org.jetbrains.kotlin.js.backend.ast.JsBinaryOperation;
import org.jetbrains.kotlin.js.backend.ast.JsExpression;
import com.intellij.psi.tree.IElementType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.kotlin.descriptors.FunctionDescriptor;
import org.jetbrains.kotlin.js.translate.callTranslator.CallTranslator;
import org.jetbrains.kotlin.js.translate.context.TranslationContext;
import org.jetbrains.kotlin.js.translate.utils.JsAstUtils;
import org.jetbrains.kotlin.js.translate.utils.TranslationUtils;
import org.jetbrains.kotlin.lexer.KtTokens;
import org.jetbrains.kotlin.psi.KtConstantExpression;
import org.jetbrains.kotlin.psi.KtExpression;
import org.jetbrains.kotlin.psi.KtUnaryExpression;
import org.jetbrains.kotlin.resolve.calls.callUtil.CallUtilKt;
import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall;
import org.jetbrains.kotlin.resolve.constants.CompileTimeConstant;
import org.jetbrains.kotlin.resolve.constants.evaluate.ConstantExpressionEvaluator;
import static org.jetbrains.kotlin.js.translate.general.Translation.translateAsExpression;
import static org.jetbrains.kotlin.js.translate.utils.BindingUtils.getCompileTimeValue;
import static org.jetbrains.kotlin.js.translate.utils.ErrorReportingUtils.message;
import static org.jetbrains.kotlin.js.translate.utils.PsiUtils.getBaseExpression;
import static org.jetbrains.kotlin.js.translate.utils.PsiUtils.getOperationToken;
import static org.jetbrains.kotlin.js.translate.utils.TranslationUtils.*;
public final class UnaryOperationTranslator {
private UnaryOperationTranslator() {
}
@NotNull
public static JsExpression translate(
@NotNull KtUnaryExpression expression,
@NotNull TranslationContext context
) {
IElementType operationToken = expression.getOperationReference().getReferencedNameElementType();
if (operationToken == KtTokens.EXCLEXCL) {
KtExpression baseExpression = getBaseExpression(expression);
JsExpression translatedExpression = translateAsExpression(baseExpression, context);
return sure(translatedExpression, context);
}
if (operationToken == KtTokens.MINUS) {
KtExpression baseExpression = getBaseExpression(expression);
if (baseExpression instanceof KtConstantExpression) {
CompileTimeConstant<?> compileTimeValue = ConstantExpressionEvaluator.getConstant(expression, context.bindingContext());
assert compileTimeValue != null : message(expression, "Expression is not compile time value: " + expression.getText() + " ");
Object value = getCompileTimeValue(context.bindingContext(), expression, compileTimeValue);
if (value instanceof Long) {
return JsAstUtils.newLong((Long) value, context);
}
}
}
if (IncrementTranslator.isIncrement(operationToken)) {
return IncrementTranslator.translate(expression, context);
}
JsExpression baseExpression = TranslationUtils.translateBaseExpression(context, expression);
if (isExclForBinaryEqualLikeExpr(expression, baseExpression)) {
return translateExclForBinaryEqualLikeExpr((JsBinaryOperation) baseExpression);
}
ResolvedCall<? extends FunctionDescriptor> resolvedCall = CallUtilKt.getFunctionResolvedCallWithAssert(expression, context.bindingContext());
return CallTranslator.translate(context, resolvedCall, baseExpression);
}
private static boolean isExclForBinaryEqualLikeExpr(@NotNull KtUnaryExpression expression, @NotNull JsExpression baseExpression) {
if (getOperationToken(expression).equals(KtTokens.EXCL)) {
if (baseExpression instanceof JsBinaryOperation) {
return isEqualLikeOperator(((JsBinaryOperation) baseExpression).getOperator());
}
}
return false;
}
}