// add assert startup code
private void initAssertions(MethodVisitor mv) {
mv.visitLdcInsn(Type.getType("L" + myClassName + ";"));
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "desiredAssertionStatus", "()Z", false);
Label l0 = new Label();
mv.visitJumpInsn(IFNE, l0);
mv.visitInsn(ICONST_1);
Label l1 = new Label();
mv.visitJumpInsn(GOTO, l1);
mv.visitLabel(l0);
mv.visitInsn(ICONST_0);
mv.visitLabel(l1);
mv.visitFieldInsn(PUTSTATIC, myClassName, ASSERTIONS_DISABLED_NAME, "Z");
}
private void generateConstInstance() {
MethodVisitor mv =
v.newMethod(
OtherOrigin(element, funDescriptor),
ACC_STATIC | ACC_SYNTHETIC,
"<clinit>",
"()V",
null,
ArrayUtil.EMPTY_STRING_ARRAY);
InstructionAdapter iv = new InstructionAdapter(mv);
v.newField(
OtherOrigin(element, funDescriptor),
ACC_STATIC | ACC_FINAL | ACC_PUBLIC,
JvmAbi.INSTANCE_FIELD,
asmType.getDescriptor(),
null,
null);
if (state.getClassBuilderMode() == ClassBuilderMode.FULL) {
mv.visitCode();
iv.anew(asmType);
iv.dup();
iv.invokespecial(asmType.getInternalName(), "<init>", "()V", false);
iv.putstatic(asmType.getInternalName(), JvmAbi.INSTANCE_FIELD, asmType.getDescriptor());
mv.visitInsn(RETURN);
FunctionCodegen.endVisit(mv, "<clinit>", element);
}
}
// verify pattern and add compiled pattern to static cache
private void initPatterns(MethodVisitor mv) {
mv.visitIntInsn(BIPUSH, myPatterns.size());
mv.visitTypeInsn(ANEWARRAY, "java/util/regex/Pattern");
mv.visitFieldInsn(PUTSTATIC, myClassName, PATTERN_CACHE_NAME, JAVA_UTIL_REGEX_PATTERN);
int i = 0;
for (String pattern : myPatterns) {
// check the pattern so we can rely on the pattern being valid at runtime
try {
Pattern.compile(pattern);
} catch (Exception e) {
throw new InstrumentationException("Illegal Pattern: " + pattern, e);
}
mv.visitFieldInsn(GETSTATIC, myClassName, PATTERN_CACHE_NAME, JAVA_UTIL_REGEX_PATTERN);
mv.visitIntInsn(BIPUSH, i++);
mv.visitLdcInsn(pattern);
mv.visitMethodInsn(
INVOKESTATIC,
"java/util/regex/Pattern",
"compile",
"(Ljava/lang/String;)Ljava/util/regex/Pattern;",
false);
mv.visitInsn(AASTORE);
}
}
private void createStaticInitializer() {
final MethodVisitor mv = cv.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
mv.visitCode();
patchStaticInitializer(mv);
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}