backup/JWebAssembly
1
0
Fork 0
mirror of https://github.com/i-net-software/JWebAssembly.git synced 2025-03-25 07:27:52 +01:00
Code Issues Projects Releases Activity

add method getAnnotation

Browse Source
This commit is contained in:
Volker Berlin 2018-05-30 18:31:17 +02:00
parent d06899b669
commit 3e207615ac
1 changed files with 30 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
src/de/inetsoftware/classparser/MethodInfo.java
View File

@ -1,5 +1,5 @@
/* /*
Copyright 2011 - 2017 Volker Berlin (i-net software) Copyright 2011 - 2018 Volker Berlin (i-net software)
Licensed under the Apache License, Version 2.0 (the "License"); Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. you may not use this file except in compliance with the License.
@ -18,6 +18,9 @@ package de.inetsoftware.classparser;
import java.io.DataInputStream; import java.io.DataInputStream;
import java.io.IOException; import java.io.IOException;
import java.util.Map;
import javax.annotation.Nullable;
import de.inetsoftware.classparser.Attributes.AttributeInfo; import de.inetsoftware.classparser.Attributes.AttributeInfo;
@ -42,6 +45,8 @@ public class MethodInfo {
private ClassFile classFile; private ClassFile classFile;
private Annotations annotations;
/** /**
* Read the method_info structure * Read the method_info structure
* http://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.6 * http://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.6
@ -152,10 +157,31 @@ public class MethodInfo {
* Get the annotations with @Retention(RetentionPolicy.CLASS) * Get the annotations with @Retention(RetentionPolicy.CLASS)
* @return the annotations if there any exists else null * @return the annotations if there any exists else null
*/ */
@Nullable
public Annotations getRuntimeInvisibleAnnotations() throws IOException { public Annotations getRuntimeInvisibleAnnotations() throws IOException {
AttributeInfo data = attributes.get( "RuntimeInvisibleAnnotations" ); if( annotations == null ) {
if( data != null ) { AttributeInfo data = attributes.get( "RuntimeInvisibleAnnotations" );
return new Annotations( data.getDataInputStream(), constantPool ); if( data != null ) {
annotations = new Annotations( data.getDataInputStream(), constantPool );
}
}
return annotations;
}
/**
* Get a single annotation or null
*
* @param annotation
* the class name of the annotation
* @return the value or null if not exists
* @throws IOException
* if any I/O error occur
*/
@Nullable
public Map<String, Object> getAnnotation( String annotation ) throws IOException {
Annotations annotations = getRuntimeInvisibleAnnotations();
if( annotations != null ) {
return annotations.get( annotation );
} }
return null; return null;
} }