下面列出了org.objectweb.asm.Opcodes# V1_4 ( ) 实例代码,或者点击链接到github查看源代码,也可以在右侧发表评论。
/** Gets the class file version corresponding to the given source version constant. */
public static int sourceVersionToClassFileVersion(SourceVersion version) {
switch (version) {
case RELEASE_0:
return Opcodes.V1_1; // JVMS8 4.1: 1.0 and 1.1 both support version 45.3 (Opcodes.V1_1)
case RELEASE_1:
return Opcodes.V1_1;
case RELEASE_2:
return Opcodes.V1_2;
case RELEASE_3:
return Opcodes.V1_3;
case RELEASE_4:
return Opcodes.V1_4;
case RELEASE_5:
return Opcodes.V1_5;
case RELEASE_6:
return Opcodes.V1_6;
case RELEASE_7:
return Opcodes.V1_7;
case RELEASE_8:
return Opcodes.V1_8;
default:
throw new IllegalArgumentException(String.format("Unexpected source version: %s", version));
}
}
/** Gets the class file version corresponding to the given source version constant. */
public static int sourceVersionToClassFileVersion(SourceVersion version) {
switch (version) {
case RELEASE_0:
return Opcodes.V1_1; // JVMS8 4.1: 1.0 and 1.1 both support version 45.3 (Opcodes.V1_1)
case RELEASE_1:
return Opcodes.V1_1;
case RELEASE_2:
return Opcodes.V1_2;
case RELEASE_3:
return Opcodes.V1_3;
case RELEASE_4:
return Opcodes.V1_4;
case RELEASE_5:
return Opcodes.V1_5;
case RELEASE_6:
return Opcodes.V1_6;
case RELEASE_7:
return Opcodes.V1_7;
case RELEASE_8:
return Opcodes.V1_8;
case RELEASE_9:
return Opcodes.V9;
case RELEASE_10:
return Opcodes.V10;
case RELEASE_11:
return Opcodes.V11;
default:
throw new IllegalArgumentException(String.format("Unexpected source version: %s", version));
}
}
@Override
public void visit(final int version, final int access, final String name, final String signature, final String superName,
final String[] interfaces) {
String simpleName;
if (name == null) {
simpleName = "module-info";
} else {
int n = name.lastIndexOf('/');
if (n == -1) {
simpleName = name;
} else {
text.add("package asm." + name.substring(0, n).replace('/', '.') + ";\n");
simpleName = name.substring(n + 1).replace('-', '_');
}
}
text.add("import java.util.*;\n");
text.add("import org.objectweb.asm.*;\n");
text.add("public class " + simpleName + "Dump implements Opcodes {\n\n");
text.add("public static byte[] dump () throws Exception {\n\n");
text.add("ClassWriter cw = new ClassWriter(0);\n");
text.add("FieldVisitor fv;\n");
text.add("MethodVisitor mv;\n");
text.add("AnnotationVisitor av0;\n\n");
buf.setLength(0);
buf.append("cw.visit(");
switch (version) {
case Opcodes.V1_1:
buf.append("V1_1");
break;
case Opcodes.V1_2:
buf.append("V1_2");
break;
case Opcodes.V1_3:
buf.append("V1_3");
break;
case Opcodes.V1_4:
buf.append("V1_4");
break;
case Opcodes.V1_5:
buf.append("V1_5");
break;
case Opcodes.V1_6:
buf.append("V1_6");
break;
case Opcodes.V1_7:
buf.append("V1_7");
break;
case Opcodes.V1_8:
buf.append("V1_8");
break;
case Opcodes.V9:
buf.append("V9");
break;
default:
buf.append(version);
break;
}
buf.append(", ");
appendAccess(access | ACCESS_CLASS);
buf.append(", ");
appendConstant(name);
buf.append(", ");
appendConstant(signature);
buf.append(", ");
appendConstant(superName);
buf.append(", ");
if (interfaces != null && interfaces.length > 0) {
buf.append("new String[] {");
for (int i = 0; i < interfaces.length; ++i) {
buf.append(i == 0 ? " " : ", ");
appendConstant(interfaces[i]);
}
buf.append(" }");
} else {
buf.append("null");
}
buf.append(");\n\n");
text.add(buf.toString());
}
/**
* Creates a new ASM backend
* @param sc The SootClass that is to be converted into bytecode
* @param javaVersion A particular Java version enforced by the user, may be 0 for automatic detection, must not be lower than necessary for all features used
*/
public AbstractASMBackend(SootClass sc, int javaVersion) {
this.sc = sc;
int minVersion = getMinJavaVersion(sc);
if (javaVersion == 0)
javaVersion = Options.java_version_default;
if(javaVersion != Options.java_version_default && javaVersion < minVersion){
throw new IllegalArgumentException("Enforced Java version " + translateJavaVersion(javaVersion) + " too low to support required features (" + translateJavaVersion(minVersion) + " required)");
}
javaVersion = Math.max(javaVersion, minVersion);
switch (javaVersion) {
case Options.java_version_1_1:
this.javaVersion = Opcodes.V1_1;
break;
case Options.java_version_1_2:
this.javaVersion = Opcodes.V1_2;
break;
case Options.java_version_1_3:
this.javaVersion = Opcodes.V1_3;
break;
case Options.java_version_1_4:
this.javaVersion = Opcodes.V1_4;
break;
case Options.java_version_1_5:
this.javaVersion = Opcodes.V1_5;
break;
case Options.java_version_1_6:
this.javaVersion = Opcodes.V1_6;
break;
case Options.java_version_1_7:
this.javaVersion = Opcodes.V1_7;
break;
case Options.java_version_1_8:
this.javaVersion = Opcodes.V1_8;
break;
}
}