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org.jetbrains.kotlin.codegen.ScriptCodegen Maven / Gradle / Ivy
/*
* 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.codegen;
import com.intellij.util.ArrayUtil;
import kotlin.jvm.functions.Function0;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.kotlin.codegen.context.CodegenContext;
import org.jetbrains.kotlin.codegen.context.MethodContext;
import org.jetbrains.kotlin.codegen.context.ScriptContext;
import org.jetbrains.kotlin.codegen.state.GenerationState;
import org.jetbrains.kotlin.descriptors.ScriptDescriptor;
import org.jetbrains.kotlin.descriptors.ValueParameterDescriptor;
import org.jetbrains.kotlin.psi.*;
import org.jetbrains.kotlin.resolve.BindingContext;
import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOrigin;
import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOriginKt;
import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmMethodSignature;
import org.jetbrains.org.objectweb.asm.MethodVisitor;
import org.jetbrains.org.objectweb.asm.Type;
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter;
import java.util.Collections;
import java.util.List;
import static org.jetbrains.kotlin.resolve.jvm.AsmTypes.OBJECT_TYPE;
import static org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOrigin.NO_ORIGIN;
import static org.jetbrains.org.objectweb.asm.Opcodes.*;
public class ScriptCodegen extends MemberCodegen {
public static ScriptCodegen createScriptCodegen(
@NotNull KtScript declaration,
@NotNull GenerationState state,
@NotNull CodegenContext parentContext
) {
BindingContext bindingContext = state.getBindingContext();
ScriptDescriptor scriptDescriptor = bindingContext.get(BindingContext.SCRIPT, declaration);
assert scriptDescriptor != null;
Type classType = state.getTypeMapper().mapType(scriptDescriptor);
ClassBuilder builder = state.getFactory().newVisitor(JvmDeclarationOriginKt.OtherOrigin(declaration, scriptDescriptor),
classType, declaration.getContainingFile());
List earlierScripts = state.getReplSpecific().getEarlierScriptsForReplInterpreter();
ScriptContext scriptContext = parentContext.intoScript(
scriptDescriptor,
earlierScripts == null ? Collections.emptyList() : earlierScripts,
scriptDescriptor,
state.getTypeMapper()
);
return new ScriptCodegen(declaration, state, scriptContext, builder);
}
private final KtScript scriptDeclaration;
private final ScriptContext context;
private final ScriptDescriptor scriptDescriptor;
private ScriptCodegen(
@NotNull KtScript scriptDeclaration,
@NotNull GenerationState state,
@NotNull ScriptContext context,
@NotNull ClassBuilder builder
) {
super(state, null, context, scriptDeclaration, builder);
this.scriptDeclaration = scriptDeclaration;
this.context = context;
this.scriptDescriptor = context.getScriptDescriptor();
}
@Override
protected void generateDeclaration() {
Type classType = typeMapper.mapClass(context.getContextDescriptor());
v.defineClass(scriptDeclaration,
V1_6,
ACC_PUBLIC | ACC_SUPER,
classType.getInternalName(),
null,
"java/lang/Object",
ArrayUtil.EMPTY_STRING_ARRAY);
}
@Override
protected void generateBody() {
genMembers();
genFieldsForParameters(scriptDescriptor, v);
genConstructor(scriptDescriptor, v,
context.intoFunction(scriptDescriptor.getUnsubstitutedPrimaryConstructor()));
}
@Override
protected void generateKotlinMetadataAnnotation() {
// TODO
}
private void genConstructor(
@NotNull ScriptDescriptor scriptDescriptor,
@NotNull ClassBuilder classBuilder,
@NotNull MethodContext methodContext
) {
JvmMethodSignature jvmSignature = typeMapper.mapScriptSignature(scriptDescriptor, context.getEarlierScripts());
if (state.getReplSpecific().getShouldGenerateScriptResultValue()) {
FieldInfo resultFieldInfo = context.getResultFieldInfo();
classBuilder.newField(
JvmDeclarationOrigin.NO_ORIGIN,
ACC_PUBLIC | ACC_FINAL,
resultFieldInfo.getFieldName(),
resultFieldInfo.getFieldType().getDescriptor(),
null,
null
);
}
MethodVisitor mv = classBuilder.newMethod(
JvmDeclarationOriginKt.OtherOrigin(scriptDeclaration, scriptDescriptor.getUnsubstitutedPrimaryConstructor()),
ACC_PUBLIC, jvmSignature.getAsmMethod().getName(), jvmSignature.getAsmMethod().getDescriptor(),
null, null);
if (state.getClassBuilderMode() == ClassBuilderMode.FULL) {
mv.visitCode();
InstructionAdapter iv = new InstructionAdapter(mv);
Type classType = typeMapper.mapType(scriptDescriptor);
iv.load(0, classType);
iv.invokespecial("java/lang/Object", "", "()V", false);
iv.load(0, classType);
FrameMap frameMap = new FrameMap();
frameMap.enterTemp(OBJECT_TYPE);
for (ScriptDescriptor importedScript : context.getEarlierScripts()) {
frameMap.enter(importedScript, OBJECT_TYPE);
}
Type[] argTypes = jvmSignature.getAsmMethod().getArgumentTypes();
int add = 0;
List valueParameters = scriptDescriptor.getUnsubstitutedPrimaryConstructor().getValueParameters();
for (int i = 0; i < valueParameters.size(); i++) {
ValueParameterDescriptor parameter = valueParameters.get(i);
frameMap.enter(parameter, argTypes[i + add]);
}
int offset = 1;
for (ScriptDescriptor earlierScript : context.getEarlierScripts()) {
Type earlierClassType = typeMapper.mapClass(earlierScript);
iv.load(0, classType);
iv.load(offset, earlierClassType);
offset += earlierClassType.getSize();
iv.putfield(classType.getInternalName(), context.getScriptFieldName(earlierScript), earlierClassType.getDescriptor());
}
for (ValueParameterDescriptor parameter : valueParameters) {
Type parameterType = typeMapper.mapType(parameter.getType());
iv.load(0, classType);
iv.load(offset, parameterType);
offset += parameterType.getSize();
iv.putfield(classType.getInternalName(), parameter.getName().getIdentifier(), parameterType.getDescriptor());
}
final ExpressionCodegen codegen = new ExpressionCodegen(mv, frameMap, Type.VOID_TYPE, methodContext, state, this);
generateInitializers(new Function0() {
@Override
public ExpressionCodegen invoke() {
return codegen;
}
});
iv.areturn(Type.VOID_TYPE);
}
mv.visitMaxs(-1, -1);
mv.visitEnd();
}
private void genFieldsForParameters(@NotNull ScriptDescriptor script, @NotNull ClassBuilder classBuilder) {
for (ScriptDescriptor earlierScript : context.getEarlierScripts()) {
Type earlierClassName = typeMapper.mapType(earlierScript);
int access = ACC_PUBLIC | ACC_FINAL;
classBuilder.newField(NO_ORIGIN, access, context.getScriptFieldName(earlierScript), earlierClassName.getDescriptor(), null, null);
}
for (ValueParameterDescriptor parameter : script.getUnsubstitutedPrimaryConstructor().getValueParameters()) {
Type parameterType = typeMapper.mapType(parameter);
int access = ACC_PUBLIC | ACC_FINAL;
classBuilder.newField(JvmDeclarationOriginKt.OtherOrigin(parameter), access, parameter.getName().getIdentifier(), parameterType.getDescriptor(), null, null);
}
}
private void genMembers() {
for (KtDeclaration declaration : scriptDeclaration.getDeclarations()) {
if (declaration instanceof KtProperty || declaration instanceof KtNamedFunction) {
genFunctionOrProperty(declaration);
}
else if (declaration instanceof KtClassOrObject) {
genClassOrObject((KtClassOrObject) declaration);
}
}
}
}
