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/*
* Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.js.translate.utils;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.builtins.FunctionTypesKt;
import org.jetbrains.kotlin.builtins.KotlinBuiltIns;
import org.jetbrains.kotlin.builtins.StandardNames;
import org.jetbrains.kotlin.builtins.PrimitiveType;
import org.jetbrains.kotlin.descriptors.*;
import org.jetbrains.kotlin.descriptors.impl.AnonymousFunctionDescriptor;
import org.jetbrains.kotlin.descriptors.impl.LocalVariableAccessorDescriptor;
import org.jetbrains.kotlin.descriptors.impl.LocalVariableDescriptor;
import org.jetbrains.kotlin.incremental.components.NoLookupLocation;
import org.jetbrains.kotlin.js.backend.ast.*;
import org.jetbrains.kotlin.js.backend.ast.metadata.BoxingKind;
import org.jetbrains.kotlin.js.backend.ast.metadata.MetadataProperties;
import org.jetbrains.kotlin.js.backend.ast.metadata.SpecialFunction;
import org.jetbrains.kotlin.js.translate.context.Namer;
import org.jetbrains.kotlin.js.translate.context.TemporaryConstVariable;
import org.jetbrains.kotlin.js.translate.context.TranslationContext;
import org.jetbrains.kotlin.js.translate.expression.InlineMetadata;
import org.jetbrains.kotlin.js.translate.general.Translation;
import org.jetbrains.kotlin.js.translate.intrinsic.functions.factories.ArrayFIF;
import org.jetbrains.kotlin.js.translate.reference.ReferenceTranslator;
import org.jetbrains.kotlin.js.translate.utils.jsAstUtils.AstUtilsKt;
import org.jetbrains.kotlin.name.ClassId;
import org.jetbrains.kotlin.name.FqName;
import org.jetbrains.kotlin.name.FqNameUnsafe;
import org.jetbrains.kotlin.name.Name;
import org.jetbrains.kotlin.psi.*;
import org.jetbrains.kotlin.resolve.BindingContext;
import org.jetbrains.kotlin.resolve.BindingContextUtils;
import org.jetbrains.kotlin.resolve.DescriptorUtils;
import org.jetbrains.kotlin.resolve.descriptorUtil.DescriptorUtilsKt;
import org.jetbrains.kotlin.resolve.inline.InlineUtil;
import org.jetbrains.kotlin.resolve.source.PsiSourceElementKt;
import org.jetbrains.kotlin.types.DynamicTypesKt;
import org.jetbrains.kotlin.types.KotlinType;
import org.jetbrains.kotlin.types.TypeUtils;
import java.util.*;
import java.util.stream.Collectors;
import static org.jetbrains.kotlin.js.backend.ast.JsBinaryOperator.*;
import static org.jetbrains.kotlin.js.translate.utils.BindingUtils.getCallableDescriptorForOperationExpression;
import static org.jetbrains.kotlin.js.translate.utils.JsAstUtils.*;
import static org.jetbrains.kotlin.js.translate.utils.UtilsKt.hasOrInheritsParametersWithDefaultValue;
public final class TranslationUtils {
private static final Set CLASSES_WITH_NON_BOXED_CHARS = new HashSet<>(Arrays.asList(
new FqNameUnsafe("kotlin.collections.CharIterator"),
new FqNameUnsafe("kotlin.ranges.CharProgression"),
new FqNameUnsafe("kotlin.js.internal.CharCompanionObject"),
new FqNameUnsafe("kotlin.Char.Companion"),
StandardNames.FqNames.charSequence, StandardNames.FqNames.number
));
private TranslationUtils() {
}
@NotNull
public static JsPropertyInitializer translateFunctionAsEcma5PropertyDescriptor(
@NotNull JsFunction function, @NotNull FunctionDescriptor descriptor,
@NotNull TranslationContext context
) {
JsExpression functionExpression = function;
if (InlineUtil.isInline(descriptor)) {
InlineMetadata metadata = InlineMetadata.compose(function, descriptor, context);
PsiElement sourceInfo = PsiSourceElementKt.getPsi(descriptor.getSource());
functionExpression = metadata.functionWithMetadata(context, sourceInfo);
}
if (DescriptorUtils.isExtension(descriptor) ||
descriptor instanceof PropertyAccessorDescriptor &&
shouldAccessViaFunctions(((PropertyAccessorDescriptor) descriptor).getCorrespondingProperty())
) {
return translateExtensionFunctionAsEcma5DataDescriptor(functionExpression, descriptor, context);
}
else {
JsStringLiteral getOrSet = new JsStringLiteral(getAccessorFunctionName(descriptor));
return new JsPropertyInitializer(getOrSet, functionExpression);
}
}
@NotNull
private static String getAccessorFunctionName(@NotNull FunctionDescriptor descriptor) {
boolean isGetter = descriptor instanceof PropertyGetterDescriptor || descriptor instanceof LocalVariableAccessorDescriptor.Getter;
return isGetter ? "get" : "set";
}
@NotNull
public static JsFunction simpleReturnFunction(@NotNull JsScope functionScope, @NotNull JsExpression returnExpression) {
JsReturn jsReturn = new JsReturn(returnExpression);
jsReturn.setSource(returnExpression.getSource());
return new JsFunction(functionScope, new JsBlock(jsReturn), "");
}
@NotNull
private static JsPropertyInitializer translateExtensionFunctionAsEcma5DataDescriptor(@NotNull JsExpression functionExpression,
@NotNull FunctionDescriptor descriptor, @NotNull TranslationContext context) {
JsObjectLiteral meta = createDataDescriptor(functionExpression, ModalityUtilsKt.isOverridable(descriptor), false);
return new JsPropertyInitializer(context.getNameForDescriptor(descriptor).makeRef(), meta);
}
@NotNull
public static JsExpression translateExclForBinaryEqualLikeExpr(@NotNull JsBinaryOperation baseBinaryExpression) {
JsBinaryOperator negatedOperator = notOperator(baseBinaryExpression.getOperator());
assert negatedOperator != null : "Can't negate operator: " + baseBinaryExpression.getOperator();
return new JsBinaryOperation(negatedOperator, baseBinaryExpression.getArg1(), baseBinaryExpression.getArg2());
}
public static boolean isEqualLikeOperator(@NotNull JsBinaryOperator operator) {
return notOperator(operator) != null;
}
@Nullable
private static JsBinaryOperator notOperator(@NotNull JsBinaryOperator operator) {
switch (operator) {
case REF_EQ:
return REF_NEQ;
case REF_NEQ:
return REF_EQ;
case EQ:
return NEQ;
case NEQ:
return EQ;
default:
return null;
}
}
@NotNull
public static JsBinaryOperation isNullCheck(@NotNull JsExpression expressionToCheck) {
return nullCheck(expressionToCheck, false);
}
@NotNull
private static JsBinaryOperation isNotNullCheck(@NotNull JsExpression expressionToCheck) {
return nullCheck(expressionToCheck, true);
}
@NotNull
public static JsBinaryOperation nullCheck(@NotNull JsExpression expressionToCheck, boolean isNegated) {
JsBinaryOperator operator = isNegated ? JsBinaryOperator.NEQ : JsBinaryOperator.EQ;
return new JsBinaryOperation(operator, expressionToCheck, new JsNullLiteral());
}
@NotNull
private static JsExpression prepareForNullCheck(
@NotNull KtExpression ktSubject,
@NotNull JsExpression expression,
@NotNull TranslationContext context
) {
KotlinType type = context.bindingContext().getType(ktSubject);
if (type == null) {
type = context.getCurrentModule().getBuiltIns().getAnyType();
}
return coerce(context, expression, TypeUtils.makeNullable(type));
}
@NotNull
public static JsBinaryOperation nullCheck(
@NotNull KtExpression ktSubject,
@NotNull JsExpression expressionToCheck,
@NotNull TranslationContext context,
boolean isNegated
) {
return nullCheck(prepareForNullCheck(ktSubject, expressionToCheck, context), isNegated);
}
@NotNull
public static JsBinaryOperation nullCheck(
@NotNull KotlinType expressionType,
@NotNull JsExpression expressionToCheck,
@NotNull TranslationContext context,
boolean isNegated
) {
return nullCheck(coerce(context, expressionToCheck, TypeUtils.makeNullable(expressionType)), isNegated);
}
@NotNull
public static JsConditional notNullConditional(
@NotNull JsExpression expression,
@NotNull JsExpression elseExpression,
@NotNull TranslationContext context
) {
JsExpression testExpression;
JsExpression thenExpression;
if (isCacheNeeded(expression)) {
TemporaryConstVariable tempVar = context.getOrDeclareTemporaryConstVariable(expression);
testExpression = isNotNullCheck(tempVar.value());
thenExpression = tempVar.value();
}
else {
testExpression = isNotNullCheck(expression);
thenExpression = expression;
}
return new JsConditional(testExpression, thenExpression, elseExpression);
}
@NotNull
public static JsName getNameForBackingField(@NotNull TranslationContext context, @NotNull PropertyDescriptor descriptor) {
if (isReferenceToSyntheticBackingField(descriptor)) {
return context.getNameForBackingField(descriptor);
}
DeclarationDescriptor containingDescriptor = descriptor.getContainingDeclaration();
return containingDescriptor instanceof PackageFragmentDescriptor ?
context.getInnerNameForDescriptor(descriptor) :
context.getNameForDescriptor(descriptor);
}
public static boolean isReferenceToSyntheticBackingField(@NotNull PropertyDescriptor descriptor) {
DeclarationDescriptor containingDescriptor = descriptor.getContainingDeclaration();
return !JsDescriptorUtils.isSimpleFinalProperty(descriptor) && !(containingDescriptor instanceof PackageFragmentDescriptor);
}
@NotNull
public static JsNameRef backingFieldReference(@NotNull TranslationContext context, @NotNull PropertyDescriptor descriptor) {
DeclarationDescriptor containingDescriptor = descriptor.getContainingDeclaration();
JsExpression receiver;
if (containingDescriptor instanceof PackageFragmentDescriptor) {
receiver = null;
}
else {
receiver = context.getDispatchReceiver(JsDescriptorUtils.getReceiverParameterForDeclaration(containingDescriptor));
}
JsNameRef result = new JsNameRef(getNameForBackingField(context, descriptor), receiver);
MetadataProperties.setType(result, getReturnTypeForCoercion(descriptor, true));
return result;
}
@NotNull
public static JsExpression assignmentToBackingField(@NotNull TranslationContext context,
@NotNull PropertyDescriptor descriptor,
@NotNull JsExpression assignTo) {
JsNameRef backingFieldReference = backingFieldReference(context, descriptor);
return assignment(backingFieldReference, assignTo);
}
@Nullable
public static JsExpression translateInitializerForProperty(@NotNull KtProperty declaration,
@NotNull TranslationContext context) {
JsExpression jsInitExpression = null;
KtExpression initializer = declaration.getInitializer();
if (initializer != null) {
jsInitExpression = Translation.translateAsExpression(initializer, context);
KotlinType propertyType = BindingContextUtils.getNotNull(
context.bindingContext(), BindingContext.VARIABLE, declaration).getType();
jsInitExpression = coerce(context, jsInitExpression, propertyType);
}
return jsInitExpression;
}
@NotNull
public static JsExpression translateBaseExpression(@NotNull TranslationContext context,
@NotNull KtUnaryExpression expression) {
KtExpression baseExpression = PsiUtils.getBaseExpression(expression);
return Translation.translateAsExpression(baseExpression, context);
}
@NotNull
public static JsExpression translateRightExpression(
@NotNull TranslationContext context,
@NotNull KtBinaryExpression expression,
@NotNull JsBlock block) {
KtExpression rightExpression = expression.getRight();
assert rightExpression != null : "Binary expression should have a right expression";
return Translation.translateAsExpression(rightExpression, context, block);
}
public static boolean hasCorrespondingFunctionIntrinsic(@NotNull TranslationContext context,
@NotNull KtOperationExpression expression) {
CallableDescriptor operationDescriptor = getCallableDescriptorForOperationExpression(context.bindingContext(), expression);
if (operationDescriptor == null || !(operationDescriptor instanceof FunctionDescriptor)) return true;
KotlinType returnType = operationDescriptor.getReturnType();
if (returnType != null &&
(KotlinBuiltIns.isChar(returnType) || KotlinBuiltIns.isLong(returnType) || KotlinBuiltIns.isInt(returnType))) {
return false;
}
if (context.intrinsics().getFunctionIntrinsic((FunctionDescriptor) operationDescriptor, context) != null) return true;
return false;
}
@NotNull
public static List generateInvocationArguments(
@NotNull JsExpression receiver,
@NotNull List arguments
) {
List argumentList = new ArrayList<>(1 + arguments.size());
argumentList.add(receiver);
argumentList.addAll(arguments);
return argumentList;
}
public static boolean isCacheNeeded(@NotNull JsExpression expression) {
if (expression instanceof JsLiteral.JsValueLiteral) return false;
if (expression instanceof JsNameRef && ((JsNameRef) expression).getQualifier() == null) return false;
if (expression instanceof JsBinaryOperation) {
JsBinaryOperation operation = (JsBinaryOperation) expression;
JsBinaryOperator operator = operation.getOperator();
if (operator.isAssignment() || operator == COMMA) return true;
return isCacheNeeded(operation.getArg1()) || isCacheNeeded(operation.getArg2());
}
if (expression instanceof JsUnaryOperation) {
JsUnaryOperation operation = (JsUnaryOperation) expression;
JsUnaryOperator operator = operation.getOperator();
switch (operator) {
case BIT_NOT:
case NEG:
case POS:
case NOT:
case TYPEOF:
case VOID:
return isCacheNeeded(operation.getArg());
default:
return true;
}
}
return true;
}
@NotNull
public static JsExpression sure(@NotNull KtExpression ktExpression, @NotNull JsExpression expression, @NotNull TranslationContext context) {
return new JsInvocation(context.getReferenceToIntrinsic(Namer.NULL_CHECK_INTRINSIC_NAME),
prepareForNullCheck(ktExpression, expression, context));
}
public static boolean isSimpleNameExpressionNotDelegatedLocalVar(@Nullable KtExpression expression, @NotNull TranslationContext context) {
if (!(expression instanceof KtSimpleNameExpression)) {
return false;
}
DeclarationDescriptor descriptor = context.bindingContext().get(BindingContext.REFERENCE_TARGET, ((KtSimpleNameExpression) expression));
return !((descriptor instanceof LocalVariableDescriptor) && ((LocalVariableDescriptor) descriptor).isDelegated()) &&
!((descriptor instanceof PropertyDescriptor) && propertyAccessedByFunctionsInternally((PropertyDescriptor) descriptor, context));
}
private static boolean propertyAccessedByFunctionsInternally(@NotNull PropertyDescriptor p, @NotNull TranslationContext context) {
return !JsDescriptorUtils.isSimpleFinalProperty(p) && context.isFromCurrentModule(p) || shouldAccessViaFunctions(p);
}
public static boolean shouldAccessViaFunctions(@NotNull CallableDescriptor descriptor) {
if (descriptor instanceof PropertyDescriptor) {
return shouldAccessViaFunctions((PropertyDescriptor) descriptor);
}
else if (descriptor instanceof PropertyAccessorDescriptor) {
return shouldAccessViaFunctions(((PropertyAccessorDescriptor) descriptor).getCorrespondingProperty());
}
else {
return false;
}
}
private static boolean shouldAccessViaFunctions(@NotNull PropertyDescriptor property) {
if (AnnotationsUtils.hasJsNameInAccessors(property)) return true;
for (PropertyDescriptor overriddenProperty : property.getOverriddenDescriptors()) {
if (shouldAccessViaFunctions(overriddenProperty)) return true;
}
return false;
}
@NotNull
public static JsExpression translateContinuationArgument(@NotNull TranslationContext context) {
CallableDescriptor continuationDescriptor = getEnclosingContinuationParameter(context);
return ReferenceTranslator.translateAsValueReference(continuationDescriptor, context);
}
@NotNull
public static ValueParameterDescriptor getEnclosingContinuationParameter(@NotNull TranslationContext context) {
ValueParameterDescriptor result = context.getContinuationParameterDescriptor();
if (result == null) {
assert context.getParent() != null;
result = getEnclosingContinuationParameter(context.getParent());
}
return result;
}
@NotNull
public static ClassDescriptor getCoroutineBaseClass(@NotNull TranslationContext context) {
FqName className = StandardNames.COROUTINES_PACKAGE_FQ_NAME.child(Name.identifier("CoroutineImpl"));
ClassDescriptor descriptor = FindClassInModuleKt.findClassAcrossModuleDependencies(
context.getCurrentModule(), ClassId.topLevel(className));
assert descriptor != null;
return descriptor;
}
@NotNull
public static PropertyDescriptor getCoroutineProperty(@NotNull TranslationContext context, @NotNull String name) {
return getCoroutineBaseClass(context).getUnsubstitutedMemberScope()
.getContributedVariables(Name.identifier(name), NoLookupLocation.FROM_DESERIALIZATION)
.iterator().next();
}
@NotNull
public static FunctionDescriptor getCoroutineDoResumeFunction(@NotNull TranslationContext context) {
return getCoroutineBaseClass(context).getUnsubstitutedMemberScope()
.getContributedFunctions(Name.identifier("doResume"), NoLookupLocation.FROM_DESERIALIZATION)
.iterator().next();
}
public static boolean isOverridableFunctionWithDefaultParameters(@NotNull FunctionDescriptor descriptor) {
return hasOrInheritsParametersWithDefaultValue(descriptor) &&
!(descriptor instanceof ConstructorDescriptor) &&
descriptor.getContainingDeclaration() instanceof ClassDescriptor &&
ModalityUtilsKt.isOverridable(descriptor);
}
@NotNull
public static KotlinType getReturnTypeForCoercion(@NotNull CallableDescriptor descriptor) {
return getReturnTypeForCoercion(descriptor, false);
}
@NotNull
public static KotlinType getReturnTypeForCoercion(@NotNull CallableDescriptor descriptor, boolean forcePrivate) {
descriptor = descriptor.getOriginal();
if (FunctionTypesKt.getFunctionTypeKind(descriptor) != null || descriptor instanceof AnonymousFunctionDescriptor) {
return getAnyTypeFromSameModule(descriptor);
}
Collection overridden = descriptor.getOverriddenDescriptors();
if (overridden.isEmpty()) {
KotlinType returnType = descriptor.getReturnType();
if (returnType == null) {
return getAnyTypeFromSameModule(descriptor);
}
DeclarationDescriptor container = descriptor.getContainingDeclaration();
EffectiveVisibility effectiveVisibility = EffectiveVisibilityUtilsKt.effectiveVisibility(descriptor.getVisibility(), descriptor, true);
boolean isPublic = effectiveVisibility.getPublicApi() && !forcePrivate;
if (KotlinBuiltIns.isCharOrNullableChar(returnType) && container instanceof ClassDescriptor && isPublic) {
ClassDescriptor containingClass = (ClassDescriptor) container;
FqNameUnsafe containingClassName = DescriptorUtilsKt.getFqNameUnsafe(containingClass);
if (!CLASSES_WITH_NON_BOXED_CHARS.contains(containingClassName) &&
!KotlinBuiltIns.isPrimitiveType(containingClass.getDefaultType()) &&
!StandardNames.isPrimitiveArray(containingClassName)
) {
return getAnyTypeFromSameModule(descriptor);
}
}
return returnType;
}
Set typesFromOverriddenCallables = overridden.stream()
.map(o -> getReturnTypeForCoercion(o, forcePrivate))
.collect(Collectors.toSet());
return typesFromOverriddenCallables.size() == 1
? typesFromOverriddenCallables.iterator().next()
: getAnyTypeFromSameModule(descriptor);
}
@NotNull
private static KotlinType getAnyTypeFromSameModule(@NotNull DeclarationDescriptor descriptor) {
return DescriptorUtils.getContainingModule(descriptor).getBuiltIns().getAnyType();
}
@NotNull
public static KotlinType getDispatchReceiverTypeForCoercion(@NotNull CallableDescriptor descriptor) {
descriptor = descriptor.getOriginal();
if (descriptor.getDispatchReceiverParameter() == null) {
throw new IllegalArgumentException("This method can only be used for class members; " +
"given descriptor is not a member of a class " + descriptor);
}
Collection overridden = descriptor.getOverriddenDescriptors();
if (overridden.isEmpty()) {
return descriptor.getDispatchReceiverParameter().getType();
}
Set typesFromOverriddenCallables = overridden.stream()
.map(TranslationUtils::getDispatchReceiverTypeForCoercion)
.collect(Collectors.toSet());
return typesFromOverriddenCallables.size() == 1
? typesFromOverriddenCallables.iterator().next()
: getAnyTypeFromSameModule(descriptor);
}
@NotNull
public static JsExpression coerce(@NotNull TranslationContext context, @NotNull JsExpression value, @NotNull KotlinType to) {
if (DynamicTypesKt.isDynamic(to)) return value;
KotlinType from = MetadataProperties.getType(value);
if (from == null) {
from = context.getCurrentModule().getBuiltIns().getAnyType();
}
if (from.equals(to)) return value;
if (KotlinBuiltIns.isCharOrNullableChar(to)) {
if (!KotlinBuiltIns.isCharOrNullableChar(from) && !(value instanceof JsNullLiteral)) {
value = boxedCharToChar(context, value);
}
}
else if (KotlinBuiltIns.isUnit(to)) {
if (!KotlinBuiltIns.isUnit(from)) {
value = unitToVoid(value);
}
}
else if (KotlinBuiltIns.isCharOrNullableChar(from)) {
if (!KotlinBuiltIns.isCharOrNullableChar(to) && !(value instanceof JsNullLiteral)) {
value = charToBoxedChar(context, value);
}
}
else if (KotlinBuiltIns.isUnit(from)) {
if (!KotlinBuiltIns.isUnit(to) && !MetadataProperties.isUnit(value)) {
value = voidToUnit(context, value);
}
}
PrimitiveType signedPrimitiveFromUnsigned = ArrayFIF.INSTANCE.unsignedPrimitiveToSigned(to);
if (signedPrimitiveFromUnsigned != null) {
if (KotlinBuiltIns.isInt(from)) {
switch (signedPrimitiveFromUnsigned) {
case BYTE:
value = AstUtilsKt.toByte(context, value);
break;
case SHORT:
value = AstUtilsKt.toShort(context, value);
break;
}
DeclarationDescriptor d = to.getConstructor().getDeclarationDescriptor();
if (d instanceof ClassDescriptor) {
value = new JsNew(ReferenceTranslator.translateAsTypeReference((ClassDescriptor) d, context),
Collections.singletonList(value));
}
}
}
// SAM conversion
if ((FunctionTypesKt.isFunctionTypeOrSubtype(from) || FunctionTypesKt.isSuspendFunctionTypeOrSubtype(from))) {
ClassifierDescriptor d = to.getConstructor().getDeclarationDescriptor();
if (d instanceof ClassDescriptor && ((ClassDescriptor)d).isFun()) {
JsName constructorName = context.getInlineableInnerNameForDescriptor(d.getOriginal());
if (to.isMarkedNullable()) {
JsConditional c = TranslationUtils.notNullConditional(value, new JsNullLiteral(), context);
c.setThenExpression(new JsNew(new JsNameRef(constructorName), Collections.singletonList(c.getThenExpression())));
value = c;
} else {
value = new JsNew(new JsNameRef(constructorName), Collections.singletonList(value));
}
}
}
MetadataProperties.setType(value, to);
return value;
}
@NotNull
private static JsExpression voidToUnit(@NotNull TranslationContext context, @NotNull JsExpression expression) {
ClassDescriptor unit = context.getCurrentModule().getBuiltIns().getUnit();
JsExpression unitRef = ReferenceTranslator.translateAsValueReference(unit, context);
return JsAstUtils.newSequence(Arrays.asList(expression, unitRef));
}
@NotNull
private static JsExpression unitToVoid(@NotNull JsExpression expression) {
if (expression instanceof JsBinaryOperation) {
JsBinaryOperation binary = (JsBinaryOperation) expression;
if (binary.getOperator() == JsBinaryOperator.COMMA && MetadataProperties.isUnit(binary.getArg2())) {
return binary.getArg1();
}
}
return expression;
}
@NotNull
public static JsExpression charToBoxedChar(@NotNull TranslationContext context, @NotNull JsExpression expression) {
if (expression instanceof JsInvocation) {
JsInvocation invocation = (JsInvocation) expression;
BoxingKind existingKind = MetadataProperties.getBoxing(invocation);
switch (existingKind) {
case UNBOXING:
return invocation.getArguments().get(0);
case BOXING:
return expression;
case NONE:
break;
}
}
JsInvocation result = invokeSpecialFunction(context, SpecialFunction.TO_BOXED_CHAR, expression);
result.setSource(expression.getSource());
MetadataProperties.setBoxing(result, BoxingKind.BOXING);
return result;
}
@NotNull
private static JsExpression boxedCharToChar(@NotNull TranslationContext context, @NotNull JsExpression expression) {
if (expression instanceof JsInvocation) {
JsInvocation invocation = (JsInvocation) expression;
BoxingKind existingKind = MetadataProperties.getBoxing(invocation);
switch (existingKind) {
case BOXING:
return invocation.getArguments().get(0);
case UNBOXING:
return expression;
case NONE:
break;
}
}
JsInvocation result = invokeSpecialFunction(context, SpecialFunction.UNBOX_CHAR, expression);
result.setSource(expression.getSource());
MetadataProperties.setBoxing(result, BoxingKind.UNBOXING);
return result;
}
@NotNull
public static JsInvocation invokeSpecialFunction(
@NotNull TranslationContext context,
@NotNull SpecialFunction function, @NotNull JsExpression... arguments
) {
JsName name = context.getNameForSpecialFunction(function);
return new JsInvocation(pureFqn(name, null), arguments);
}
@NotNull
public static String getTagForSpecialFunction(@NotNull SpecialFunction specialFunction) {
return "special:" + specialFunction.name();
}
@NotNull
public static JsExpression getIntrinsicFqn(@NotNull String name) {
JsExpression fqn = pureFqn(Namer.KOTLIN_NAME, null);
for (String part : StringUtil.split(name, ".")) {
fqn = pureFqn(part, fqn);
}
return fqn;
}
}