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fix crash when inserting method to interfaces

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This commit is contained in:
Haowei Wen 2021-11-18 21:00:58 +08:00
parent a054b8bdc4
commit a26279da80
1 changed files with 5 additions and 2 deletions
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7
src/main/java/moe/yushi/authlibinjector/transform/ClassTransformer.java
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@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2020 Haowei Wen <yushijinhun@gmail.com> and contributors * Copyright (C) 2021 Haowei Wen <yushijinhun@gmail.com> and contributors
* *
* This program is free software: you can redistribute it and/or modify * This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by * it under the terms of the GNU Affero General Public License as published by
@ -21,6 +21,7 @@ import static moe.yushi.authlibinjector.util.Logging.log;
import static moe.yushi.authlibinjector.util.Logging.Level.DEBUG; import static moe.yushi.authlibinjector.util.Logging.Level.DEBUG;
import static moe.yushi.authlibinjector.util.Logging.Level.INFO; import static moe.yushi.authlibinjector.util.Logging.Level.INFO;
import static moe.yushi.authlibinjector.util.Logging.Level.WARNING; import static moe.yushi.authlibinjector.util.Logging.Level.WARNING;
import static org.objectweb.asm.Opcodes.ACC_INTERFACE;
import static org.objectweb.asm.Opcodes.H_INVOKESTATIC; import static org.objectweb.asm.Opcodes.H_INVOKESTATIC;
import java.lang.instrument.ClassFileTransformer; import java.lang.instrument.ClassFileTransformer;
import java.lang.instrument.IllegalClassFormatException; import java.lang.instrument.IllegalClassFormatException;
@ -48,6 +49,7 @@ public class ClassTransformer implements ClassFileTransformer {
private final String className; private final String className;
public boolean isInterface;
public boolean modifiedMark; public boolean modifiedMark;
public int minVersionMark = -1; public int minVersionMark = -1;
public int upgradedVersionMark = -1; public int upgradedVersionMark = -1;
@ -84,7 +86,7 @@ public class ClassTransformer implements ClassFileTransformer {
className.replace('.', '/'), className.replace('.', '/'),
CallbackSupport.METAFACTORY_NAME, CallbackSupport.METAFACTORY_NAME,
CallbackSupport.METAFACTORY_SIGNATURE, CallbackSupport.METAFACTORY_SIGNATURE,
false); isInterface);
} }
} }
@ -112,6 +114,7 @@ public class ClassTransformer implements ClassFileTransformer {
Optional<ClassVisitor> optionalVisitor = unit.transform(classLoader, className, writer, ctx); Optional<ClassVisitor> optionalVisitor = unit.transform(classLoader, className, writer, ctx);
if (optionalVisitor.isPresent()) { if (optionalVisitor.isPresent()) {
ClassReader reader = new ClassReader(classBuffer); ClassReader reader = new ClassReader(classBuffer);
ctx.isInterface = (reader.getAccess() & ACC_INTERFACE) != 0;
reader.accept(optionalVisitor.get(), 0); reader.accept(optionalVisitor.get(), 0);
if (ctx.modifiedMark) { if (ctx.modifiedMark) {
log(INFO, "Transformed [" + className + "] with [" + unit + "]"); log(INFO, "Transformed [" + className + "] with [" + unit + "]");