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8210031: implementation for JVM Constants API

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Co-authored-by: Brian Goetz <brian.goetz@oracle.com>
Reviewed-by: jrose, mcimadamore, darcy, mchung, rriggs, dholmes, forax
This commit is contained in:
Vicente Romero 2018-12-09 12:36:24 -05:00
parent b80d335354
commit 9846588b31
72 changed files with 6719 additions and 103 deletions
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12
src/java.base/share/classes/sun/invoke/util/Wrapper.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -47,6 +47,7 @@ public enum Wrapper {
private final Class<?> wrapperType;
private final Class<?> primitiveType;
private final char basicTypeChar;
private final String basicTypeString;
private final Object emptyArray;
private final int format;
private final String wrapperSimpleName;
@ -56,6 +57,7 @@ public enum Wrapper {
this.wrapperType = wtype;
this.primitiveType = ptype;
this.basicTypeChar = tchar;
this.basicTypeString = new String(new char[] {this.basicTypeChar});
this.emptyArray = emptyArray;
this.format = format;
this.wrapperSimpleName = wtypeName;
@ -459,6 +461,11 @@ public enum Wrapper {
*/
public char basicTypeChar() { return basicTypeChar; }
/** What is the bytecode signature string for this wrapper's
* primitive type?
*/
public String basicTypeString() { return basicTypeString; }
/** What is the simple name of the wrapper type?
*/
public String wrapperSimpleName() { return wrapperSimpleName; }
@ -581,9 +588,8 @@ public enum Wrapper {
* Returns null for {@code VOID}.
*/
public Object wrap(int x) {
if (basicTypeChar == 'L') return (Integer)x;
switch (basicTypeChar) {
case 'L': throw newIllegalArgumentException("cannot wrap to object type");
case 'L': return (Integer)x;
case 'V': return null;
case 'I': return Integer.valueOf(x);
case 'J': return Long.valueOf(x);