124 lines
4.5 KiB
Java
124 lines
4.5 KiB
Java
package io.gitlab.jfronny.libjf.config.plugin.util;
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import io.gitlab.jfronny.libjf.config.plugin.BuildMetadata;
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import io.gitlab.jfronny.libjf.config.plugin.asm.value.KnownTypes;
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import org.objectweb.asm.*;
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import org.objectweb.asm.commons.GeneratorAdapter;
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import org.objectweb.asm.commons.Method;
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import java.lang.invoke.LambdaMetafactory;
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import static org.objectweb.asm.Opcodes.ASM9;
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import static org.objectweb.asm.Opcodes.H_INVOKESTATIC;
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public class GeneratorAdapter2 extends GeneratorAdapter {
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private static final Handle metafactory = new Handle(
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H_INVOKESTATIC,
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Type.getInternalName(LambdaMetafactory.class),
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"metafactory",
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"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;",
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false
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);
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public GeneratorAdapter2(MethodVisitor methodVisitor, int access, String name, String descriptor) {
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super(ASM9, methodVisitor, access, name, descriptor);
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}
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public void λ(String lambdaMethodName, String lambdaType, Type lambdaDescriptor, Type implDescriptor, String implOwner, String implName) {
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invokeDynamic(lambdaMethodName,
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lambdaType,
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metafactory,
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lambdaDescriptor,
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new Handle(H_INVOKESTATIC, implOwner, implName, implDescriptor.getInternalName(), false),
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implDescriptor);
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}
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public void λ(String lambdaMethodName, String lambdaType, Type descriptor, String implOwner, String implName) {
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λ(lambdaMethodName, lambdaType, descriptor, descriptor, implOwner, implName);
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}
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public void runnable(String implOwner, String implName) {
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λ("run",
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"()Ljava/lang/Runnable;",
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Type.getType("()V"),
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implOwner,
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implName);
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}
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public void supplier(String implOwner, String implName, Type implDescriptor) {
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λ("get",
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"()Ljava/util/function/Supplier;",
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Type.getType("()Ljava/lang/Object;"),
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implDescriptor,
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implOwner,
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implName);
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}
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public void consumer(String implOwner, String implName, Type implDescriptor) {
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λ("accept",
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"()Ljava/util/function/Consumer;",
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Type.getType("(Ljava/lang/Object;)V"),
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implDescriptor,
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implOwner,
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implName);
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}
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public void box(Type type) {
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Type boxedType;
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switch (type.getSort()) {
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case Type.VOID:
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return;
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case Type.CHAR:
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boxedType = KnownTypes.CHARACTER_BOX_TYPE;
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break;
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case Type.BOOLEAN:
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boxedType = KnownTypes.BOOLEAN_BOX_TYPE;
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break;
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case Type.DOUBLE:
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boxedType = KnownTypes.DOUBLE_BOX_TYPE;
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break;
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case Type.FLOAT:
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boxedType = KnownTypes.FLOAT_BOX_TYPE;
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break;
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case Type.LONG:
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boxedType = KnownTypes.LONG_BOX_TYPE;
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break;
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case Type.INT:
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boxedType = KnownTypes.INT_BOX_TYPE;
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break;
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case Type.SHORT:
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boxedType = KnownTypes.SHORT_BOX_TYPE;
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break;
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case Type.BYTE:
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boxedType = KnownTypes.BYTE_BOX_TYPE;
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break;
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default:
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boxedType = null;
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break;
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}
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if (boxedType == null) {
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comment("Unkown boxed type, simply casting");
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checkCast(type);
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} else {
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comment("Boxing " + type + " to " + boxedType);
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invokeStatic(boxedType, new Method("valueOf", boxedType, new Type[]{type}));
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}
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}
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public void invokeIStatic(Type owner, Method method) {
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invokeInsn(Opcodes.INVOKESTATIC, owner, method, true);
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}
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public void comment(String comment) {
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if (BuildMetadata.IS_RELEASE) return;
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push("[Comment/Generator] " + comment);
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pop();
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}
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// Taken from GeneratorAdapter
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private void invokeInsn(final int opcode, final Type type, final Method method, final boolean isInterface) {
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String owner = type.getSort() == Type.ARRAY ? type.getDescriptor() : type.getInternalName();
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mv.visitMethodInsn(opcode, owner, method.getName(), method.getDescriptor(), isInterface);
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}
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}
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