001 /*
002 * Copyright 2010-2015 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017 package org.jetbrains.kotlin.codegen.intrinsics;
018
019 import com.google.common.collect.ImmutableList;
020 import org.jetbrains.annotations.NotNull;
021 import org.jetbrains.annotations.Nullable;
022 import org.jetbrains.kotlin.builtins.KotlinBuiltIns;
023 import org.jetbrains.kotlin.builtins.PrimitiveType;
024 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor;
025 import org.jetbrains.kotlin.name.FqNameUnsafe;
026 import org.jetbrains.kotlin.name.Name;
027 import org.jetbrains.kotlin.resolve.CompileTimeConstantUtils;
028 import org.jetbrains.kotlin.resolve.DescriptorUtils;
029 import org.jetbrains.kotlin.resolve.jvm.JvmPrimitiveType;
030 import org.jetbrains.kotlin.types.expressions.OperatorConventions;
031
032 import java.util.HashMap;
033 import java.util.Map;
034
035 import static org.jetbrains.kotlin.builtins.KotlinBuiltIns.BUILT_INS_PACKAGE_FQ_NAME;
036 import static org.jetbrains.org.objectweb.asm.Opcodes.*;
037
038 public class IntrinsicMethods {
039 public static final String INTRINSICS_CLASS_NAME = "kotlin/jvm/internal/Intrinsics";
040
041 private static final IntrinsicMethod UNARY_MINUS = new UnaryMinus();
042 private static final IntrinsicMethod UNARY_PLUS = new UnaryPlus();
043 private static final IntrinsicMethod NUMBER_CAST = new NumberCast();
044 private static final IntrinsicMethod INV = new Inv();
045 private static final IntrinsicMethod RANGE_TO = new RangeTo();
046 private static final IntrinsicMethod INC = new Increment(1);
047 private static final IntrinsicMethod DEC = new Increment(-1);
048 private static final IntrinsicMethod HASH_CODE = new HashCode();
049
050 private static final IntrinsicMethod ARRAY_SIZE = new ArraySize();
051 private static final Equals EQUALS = new Equals();
052 private static final IdentityEquals IDENTITY_EQUALS = new IdentityEquals();
053 private static final IteratorNext ITERATOR_NEXT = new IteratorNext();
054 private static final ArraySet ARRAY_SET = new ArraySet();
055 private static final ArrayGet ARRAY_GET = new ArrayGet();
056 private static final StringPlus STRING_PLUS = new StringPlus();
057 private static final ToString TO_STRING = new ToString();
058 private static final Clone CLONE = new Clone();
059
060 private static final FqNameUnsafe KOTLIN_ANY_FQ_NAME = DescriptorUtils.getFqName(KotlinBuiltIns.getInstance().getAny());
061 private static final FqNameUnsafe KOTLIN_STRING_FQ_NAME = DescriptorUtils.getFqName(KotlinBuiltIns.getInstance().getString());
062
063 private final Map<String, IntrinsicMethod> namedMethods = new HashMap<String, IntrinsicMethod>();
064 private static final IntrinsicMethod ARRAY_ITERATOR = new ArrayIterator();
065 private final IntrinsicsMap intrinsicsMap = new IntrinsicsMap();
066
067 public IntrinsicMethods() {
068 namedMethods.put("kotlin.javaClass.function", new JavaClassFunction());
069 namedMethods.put("kotlin.javaClass.property", new JavaClassProperty());
070 namedMethods.put("kotlin.arrays.array", new JavaClassArray());
071 namedMethods.put("kotlin.collections.copyToArray", new CopyToArray());
072 namedMethods.put("kotlin.jvm.internal.unsafe.monitorEnter", MonitorInstruction.MONITOR_ENTER);
073 namedMethods.put("kotlin.jvm.internal.unsafe.monitorExit", MonitorInstruction.MONITOR_EXIT);
074
075 ImmutableList<Name> primitiveCastMethods = OperatorConventions.NUMBER_CONVERSIONS.asList();
076 for (Name method : primitiveCastMethods) {
077 String methodName = method.asString();
078 declareIntrinsicFunction("Number", methodName, 0, NUMBER_CAST);
079 for (PrimitiveType type : PrimitiveType.NUMBER_TYPES) {
080 declareIntrinsicFunction(type.getTypeName().asString(), methodName, 0, NUMBER_CAST);
081 }
082 }
083
084 for (PrimitiveType type : PrimitiveType.NUMBER_TYPES) {
085 String typeName = type.getTypeName().asString();
086 declareIntrinsicFunction(typeName, "plus", 0, UNARY_PLUS);
087 declareIntrinsicFunction(typeName, "minus", 0, UNARY_MINUS);
088 declareIntrinsicFunction(typeName, "inv", 0, INV);
089 declareIntrinsicFunction(typeName, "rangeTo", 1, RANGE_TO);
090 declareIntrinsicFunction(typeName, "inc", 0, INC);
091 declareIntrinsicFunction(typeName, "dec", 0, DEC);
092 }
093
094 for (PrimitiveType type : PrimitiveType.values()) {
095 String typeName = type.getTypeName().asString();
096 declareIntrinsicFunction(typeName, "equals", 1, EQUALS);
097 declareIntrinsicFunction(typeName, "hashCode", 0, HASH_CODE);
098 declareIntrinsicFunction(typeName, "toString", 0, TO_STRING);
099 }
100
101 declareBinaryOp("plus", IADD);
102 declareBinaryOp("minus", ISUB);
103 declareBinaryOp("times", IMUL);
104 declareBinaryOp("div", IDIV);
105 declareBinaryOp("mod", IREM);
106 declareBinaryOp("shl", ISHL);
107 declareBinaryOp("shr", ISHR);
108 declareBinaryOp("ushr", IUSHR);
109 declareBinaryOp("and", IAND);
110 declareBinaryOp("or", IOR);
111 declareBinaryOp("xor", IXOR);
112
113 declareIntrinsicFunction("Boolean", "not", 0, new Not());
114
115 declareIntrinsicFunction("String", "plus", 1, new Concat());
116 declareIntrinsicFunction("String", "get", 1, new StringGetChar());
117
118 declareIntrinsicFunction("Cloneable", "clone", 0, CLONE);
119
120 intrinsicsMap.registerIntrinsic(BUILT_INS_PACKAGE_FQ_NAME, KOTLIN_ANY_FQ_NAME, "toString", 0, TO_STRING);
121 intrinsicsMap.registerIntrinsic(BUILT_INS_PACKAGE_FQ_NAME, KOTLIN_ANY_FQ_NAME, "identityEquals", 1, IDENTITY_EQUALS);
122 intrinsicsMap.registerIntrinsic(BUILT_INS_PACKAGE_FQ_NAME, KOTLIN_STRING_FQ_NAME, "plus", 1, STRING_PLUS);
123 intrinsicsMap.registerIntrinsic(BUILT_INS_PACKAGE_FQ_NAME, null, "arrayOfNulls", 1, new NewArray());
124
125 for (PrimitiveType type : PrimitiveType.values()) {
126 String typeName = type.getTypeName().asString();
127 declareIntrinsicFunction(typeName, "compareTo", 1, new CompareTo());
128 declareIntrinsicFunction(typeName + "Iterator", "next", 0, ITERATOR_NEXT);
129 }
130
131 declareArrayMethods();
132 }
133
134 private void declareArrayMethods() {
135 for (JvmPrimitiveType jvmPrimitiveType : JvmPrimitiveType.values()) {
136 declareArrayMethodsForPrimitive(jvmPrimitiveType);
137 }
138
139 declareIntrinsicFunction("Array", "size", 0, ARRAY_SIZE);
140 declareIntrinsicFunction("Array", "set", 2, ARRAY_SET);
141 declareIntrinsicFunction("Array", "get", 1, ARRAY_GET);
142 declareIntrinsicFunction("Array", "clone", 0, CLONE);
143 declareIterator("Array");
144 }
145
146 private void declareArrayMethodsForPrimitive(@NotNull JvmPrimitiveType jvmPrimitiveType) {
147 String arrayTypeName = jvmPrimitiveType.getPrimitiveType().getArrayTypeName().asString();
148 declareIntrinsicFunction(arrayTypeName, "size", 0, ARRAY_SIZE);
149 declareIntrinsicFunction(arrayTypeName, "set", 2, ARRAY_SET);
150 declareIntrinsicFunction(arrayTypeName, "get", 1, ARRAY_GET);
151 declareIntrinsicFunction(arrayTypeName, "clone", 0, CLONE);
152 declareIterator(arrayTypeName);
153 }
154
155 private void declareIterator(@NotNull String arrayClassName) {
156 declareIntrinsicFunction(arrayClassName, "iterator", 0, ARRAY_ITERATOR);
157 }
158
159 private void declareBinaryOp(@NotNull String methodName, int opcode) {
160 BinaryOp op = new BinaryOp(opcode);
161 for (PrimitiveType type : PrimitiveType.values()) {
162 declareIntrinsicFunction(type.getTypeName().asString(), methodName, 1, op);
163 }
164 }
165
166 private void declareIntrinsicFunction(
167 @NotNull String className,
168 @NotNull String methodName,
169 int arity,
170 @NotNull IntrinsicMethod implementation
171 ) {
172 intrinsicsMap.registerIntrinsic(BUILT_INS_PACKAGE_FQ_NAME.child(Name.identifier(className)),
173 null, methodName, arity, implementation);
174 }
175
176 @Nullable
177 public IntrinsicMethod getIntrinsic(@NotNull CallableMemberDescriptor descriptor) {
178 IntrinsicMethod intrinsicMethod = intrinsicsMap.getIntrinsic(descriptor);
179 if (intrinsicMethod != null) {
180 return intrinsicMethod;
181 }
182
183 String value = CompileTimeConstantUtils.getIntrinsicAnnotationArgument(descriptor);
184 if (value != null) {
185 return namedMethods.get(value);
186 }
187
188 return null;
189 }
190 }