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.kotlin.kotlin-compiler.1.3.11.source-code.FieldInfo Maven / Gradle / Ivy
/*
* Copyright 2000-2018 JetBrains s.r.o. 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.codegen;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.builtins.CompanionObjectMapping;
import org.jetbrains.kotlin.codegen.state.KotlinTypeMapper;
import org.jetbrains.kotlin.descriptors.ClassDescriptor;
import org.jetbrains.kotlin.load.java.JvmAbi;
import org.jetbrains.kotlin.resolve.DescriptorUtils;
import org.jetbrains.kotlin.types.KotlinType;
import org.jetbrains.org.objectweb.asm.Type;
import static org.jetbrains.kotlin.resolve.DescriptorUtils.isNonCompanionObject;
public class FieldInfo {
@NotNull
public static FieldInfo createForSingleton(@NotNull ClassDescriptor classDescriptor, @NotNull KotlinTypeMapper typeMapper) {
if (!classDescriptor.getKind().isSingleton() || DescriptorUtils.isEnumEntry(classDescriptor)) {
throw new UnsupportedOperationException("Can't create singleton field for class: " + classDescriptor);
}
if (isNonCompanionObject(classDescriptor) || CompanionObjectMapping.INSTANCE.isMappedIntrinsicCompanionObject(classDescriptor)) {
return createSingletonViaInstance(classDescriptor, typeMapper, JvmAbi.INSTANCE_FIELD);
}
ClassDescriptor ownerDescriptor = DescriptorUtils.getParentOfType(classDescriptor, ClassDescriptor.class);
assert ownerDescriptor != null : "Owner not found for class: " + classDescriptor;
Type ownerType = typeMapper.mapClass(ownerDescriptor);
KotlinType fieldKotlinType = classDescriptor.getDefaultType();
Type fieldType = typeMapper.mapType(fieldKotlinType);
return new FieldInfo(ownerType, fieldType, fieldKotlinType, classDescriptor.getName().asString(), true);
}
@NotNull
public static FieldInfo createSingletonViaInstance(
@NotNull ClassDescriptor classDescriptor,
@NotNull KotlinTypeMapper typeMapper,
@NotNull String name
) {
Type owner = typeMapper.mapClass(classDescriptor);
KotlinType fieldKotlinType = classDescriptor.getDefaultType();
Type fieldType = typeMapper.mapType(fieldKotlinType);
return new FieldInfo(owner, fieldType, fieldKotlinType, name, true);
}
@NotNull
public static FieldInfo createForHiddenField(@NotNull Type owner, @NotNull Type fieldType, @NotNull String fieldName) {
return createForHiddenField(owner, fieldType, null, fieldName);
}
@NotNull
public static FieldInfo createForHiddenField(
@NotNull Type owner,
@NotNull Type fieldType,
@Nullable KotlinType fieldKotlinType,
@NotNull String fieldName
) {
return new FieldInfo(owner, fieldType, fieldKotlinType, fieldName, false);
}
private final Type fieldType;
private final KotlinType fieldKotlinType;
private final Type ownerType;
private final String fieldName;
private final boolean isStatic;
private FieldInfo(
@NotNull Type ownerType,
@NotNull Type fieldType,
@Nullable KotlinType fieldKotlinType,
@NotNull String fieldName,
boolean isStatic
) {
this.ownerType = ownerType;
this.fieldType = fieldType;
this.fieldKotlinType = fieldKotlinType;
this.fieldName = fieldName;
this.isStatic = isStatic;
}
@NotNull
public Type getFieldType() {
return fieldType;
}
@Nullable
public KotlinType getFieldKotlinType() {
return fieldKotlinType;
}
@NotNull
public Type getOwnerType() {
return ownerType;
}
@NotNull
public String getOwnerInternalName() {
return ownerType.getInternalName();
}
@NotNull
public String getFieldName() {
return fieldName;
}
public boolean isStatic() {
return isStatic;
}
@Override
public String toString() {
return String.format("%s %s.%s : %s", isStatic ? "GETSTATIC" : "GETFIELD", ownerType.getInternalName(), fieldName, fieldType);
}
}