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8263358: Update java.lang to use instanceof pattern variable

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Reviewed-by: iris, chegar, mchung, dfuchs
This commit is contained in:
Patrick Concannon 2021-03-24 09:57:22 +00:00
parent ae9af57bf6
commit 329697b02e
18 changed files with 63 additions and 112 deletions
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12
src/java.base/share/classes/java/lang/invoke/MemberName.java
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@ -147,12 +147,10 @@ final class MemberName implements Member, Cloneable {
// type is not a MethodType yet. Convert it thread-safely.
synchronized (this) {
if (type instanceof String) {
String sig = (String) type;
if (type instanceof String sig) {
MethodType res = MethodType.fromDescriptor(sig, getClassLoader());
type = res;
} else if (type instanceof Object[]) {
Object[] typeInfo = (Object[]) type;
} else if (type instanceof Object[] typeInfo) {
Class<?>[] ptypes = (Class<?>[]) typeInfo[1];
Class<?> rtype = (Class<?>) typeInfo[0];
MethodType res = MethodType.makeImpl(rtype, ptypes, true);
@ -235,8 +233,7 @@ final class MemberName implements Member, Cloneable {
// type is not a Class yet. Convert it thread-safely.
synchronized (this) {
if (type instanceof String) {
String sig = (String) type;
if (type instanceof String sig) {
MethodType mtype = MethodType.fromDescriptor("()"+sig, getClassLoader());
Class<?> res = mtype.returnType();
type = res;
@ -938,8 +935,7 @@ final class MemberName implements Member, Cloneable {
} else {
Module m;
Class<?> plc;
if (from instanceof MethodHandles.Lookup) {
MethodHandles.Lookup lookup = (MethodHandles.Lookup)from;
if (from instanceof MethodHandles.Lookup lookup) {
from = lookup.lookupClass();
m = lookup.lookupClass().getModule();
plc = lookup.previousLookupClass();