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Smart ATHROW reducer removed because that can at least in theory go wrong, and saving one byte isn't relevant, as far as I know. This is simpler, too :)

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Reinier Zwitserloot
2012-02-13 21:08:25 +01:00
parent f69ae450d6
commit 653104aa4e
1 changed files with 6 additions and 105 deletions
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src/core/lombok/bytecode/SneakyThrowsRemover.java
+6 -105
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@@ -29,12 +29,9 @@ import lombok.core.DiagnosticsReceiver;
import lombok.core.PostCompilerTransformation;
import org.mangosdk.spi.ProviderFor;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
@@ -52,119 +49,23 @@ public class SneakyThrowsRemover implements PostCompilerTransformation {
final AtomicBoolean changesMade = new AtomicBoolean();
class SneakyThrowsRemoverVisitor extends MethodVisitor {
boolean justAddedAthrow = false;
SneakyThrowsRemoverVisitor(MethodVisitor mv) {
super(Opcodes.ASM4, mv);
}
@Override public void visitMethodInsn(int opcode, String owner, String name, String desc) {
justAddedAthrow = false;
boolean hit = true;
if (hit && opcode != Opcodes.INVOKESTATIC) hit = false;
if (hit && !"sneakyThrow".equals(name)) hit = false;
if (hit && !"lombok/Lombok".equals(owner)) hit = false;
if (hit && !"(Ljava/lang/Throwable;)Ljava/lang/RuntimeException;".equals(desc)) hit = false;
if (hit) {
if (
opcode == Opcodes.INVOKESTATIC &&
"sneakyThrow".equals(name) &&
"lombok/Lombok".equals(owner) &&
"(Ljava/lang/Throwable;)Ljava/lang/RuntimeException;".equals(desc)) {
changesMade.set(true);
justAddedAthrow = true;
super.visitInsn(Opcodes.ATHROW);
} else {
super.visitMethodInsn(opcode, owner, name, desc);
}
}
@Override public void visitInsn(int opcode) {
if (!justAddedAthrow || opcode != Opcodes.ATHROW) {
super.visitInsn(opcode);
}
justAddedAthrow = false;
}
@Override public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
justAddedAthrow = false;
return super.visitAnnotation(desc, visible);
}
@Override public AnnotationVisitor visitAnnotationDefault() {
justAddedAthrow = false;
return super.visitAnnotationDefault();
}
@Override public void visitAttribute(Attribute attr) {
justAddedAthrow = false;
super.visitAttribute(attr);
}
@Override public void visitFieldInsn(int opcode, String owner, String name, String desc) {
justAddedAthrow = false;
super.visitFieldInsn(opcode, owner, name, desc);
}
@Override public void visitIincInsn(int var, int increment) {
justAddedAthrow = false;
super.visitIincInsn(var, increment);
}
@Override public void visitIntInsn(int opcode, int operand) {
justAddedAthrow = false;
super.visitIntInsn(opcode, operand);
}
@Override public void visitJumpInsn(int opcode, Label label) {
justAddedAthrow = false;
super.visitJumpInsn(opcode, label);
}
@Override public void visitLabel(Label label) {
justAddedAthrow = false;
super.visitLabel(label);
}
@Override public void visitLdcInsn(Object cst) {
justAddedAthrow = false;
super.visitLdcInsn(cst);
}
@Override public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index) {
justAddedAthrow = false;
super.visitLocalVariable(name, desc, signature, start, end, index);
}
@Override public void visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels) {
justAddedAthrow = false;
super.visitLookupSwitchInsn(dflt, keys, labels);
}
@Override public void visitMultiANewArrayInsn(String desc, int dims) {
justAddedAthrow = false;
super.visitMultiANewArrayInsn(desc, dims);
}
@Override public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible) {
justAddedAthrow = false;
return super.visitParameterAnnotation(parameter, desc, visible);
}
@Override public void visitTableSwitchInsn(int min, int max, Label dflt, Label... labels) {
justAddedAthrow = false;
super.visitTableSwitchInsn(min, max, dflt, labels);
}
@Override public void visitTryCatchBlock(Label start, Label end, Label handler, String type) {
justAddedAthrow = false;
super.visitTryCatchBlock(start, end, handler, type);
}
@Override public void visitTypeInsn(int opcode, String type) {
justAddedAthrow = false;
super.visitTypeInsn(opcode, type);
}
@Override public void visitVarInsn(int opcode, int var) {
justAddedAthrow = false;
super.visitVarInsn(opcode, var);
}
}
reader.accept(new ClassVisitor(Opcodes.ASM4, writer) {