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8233096: Update javax.lang.model for switch expressions

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Reviewed-by: jjg, jlahoda
This commit is contained in:
Joe Darcy 2019-11-13 15:16:45 -08:00
parent 19bed24b1f
commit c64756158f
3 changed files with 50 additions and 29 deletions
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6
src/java.compiler/share/classes/javax/lang/model/SourceVersion.java
View File

@ -58,9 +58,9 @@ public enum SourceVersion {
* 9: modules, small cleanups to 1.7 and 1.8 changes
* 10: local-variable type inference (var)
* 11: local-variable syntax for lambda parameters
* 12: no changes (switch expressions were in preview)
* 12: no changes (switch expressions in preview)
* 13: no changes (switch expressions and text blocks in preview)
* 14: TBD
* 14: switch expressions
*/
/**
@ -199,6 +199,8 @@ public enum SourceVersion {
* The version recognized by the Java Platform, Standard Edition
* 14.
*
* Additions in this release include switch expressions.
*
* @since 14
*/
RELEASE_14;

5
src/jdk.compiler/share/classes/com/sun/tools/javac/code/Source.java
View File

@ -84,7 +84,7 @@ public enum Source {
/** 1.11 local-variable syntax for lambda parameters */
JDK11("11"),
/** 12, no language features; switch expression were in preview */
/** 12, no language features; switch expression in preview */
JDK12("12"),
/**
@ -94,8 +94,7 @@ public enum Source {
JDK13("13"),
/**
* 14 covers the to be determined language features that will be
* added in JDK 14.
* 14, switch expressions
*/
JDK14("14");

68
test/langtools/tools/javac/processing/model/TestSourceVersion.java
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2019, 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
@ -23,7 +23,7 @@
/*
* @test
* @bug 7025809 8028543 6415644 8028544 8029942 8187951 8193291 8196551
* @bug 7025809 8028543 6415644 8028544 8029942 8187951 8193291 8196551 8233096
* @summary Test latest, latestSupported, underscore as keyword, etc.
* @author Joseph D. Darcy
* @modules java.compiler
@ -31,11 +31,12 @@
*/
import java.util.*;
import java.util.function.Predicate;
import javax.lang.model.SourceVersion;
import static javax.lang.model.SourceVersion.*;
/**
* Verify latest[Supported] behavior.
* Verify behavior of latest[Supported] and other methods.
*/
public class TestSourceVersion {
public static void main(String... args) {
@ -43,6 +44,7 @@ public class TestSourceVersion {
testVersionVaryingKeywords();
testRestrictedKeywords();
testVar();
testYield();
}
private static void testLatestSupported() {
@ -52,8 +54,10 @@ public class TestSourceVersion {
SourceVersion latestSupported = SourceVersion.latestSupported();
if (latest == last &&
latestSupported == SourceVersion.valueOf("RELEASE_" + Runtime.version().feature()) &&
(latest == latestSupported || (latest.ordinal() - latestSupported.ordinal() == 1)) )
latestSupported == SourceVersion.valueOf("RELEASE_" +
Runtime.version().feature()) &&
(latest == latestSupported ||
(latest.ordinal() - latestSupported.ordinal() == 1)) )
return;
else {
throw new RuntimeException("Unexpected release value(s) found:\n" +
@ -73,14 +77,14 @@ public class TestSourceVersion {
String key = entry.getKey();
SourceVersion value = entry.getValue();
check(true, isKeyword(key), "keyword", latest());
check(false, isName(key), "name", latest());
check(true, key, (String s) -> isKeyword(s), "keyword", latest());
check(false, key, (String s) -> isName(s), "name", latest());
for(SourceVersion version : SourceVersion.values()) {
boolean isKeyword = version.compareTo(value) >= 0;
check(isKeyword, isKeyword(key, version), "keyword", version);
check(!isKeyword, isName(key, version), "name", version);
check(isKeyword, key, (String s) -> isKeyword(s, version), "keyword", version);
check(!isKeyword, key, (String s) -> isName(s, version), "name", version);
}
}
}
@ -98,31 +102,47 @@ public class TestSourceVersion {
Set.of("open", "module", "requires", "transitive", "exports",
"opens", "to", "uses", "provides", "with");
for(String key : restrictedKeywords) {
for(SourceVersion version : SourceVersion.values()) {
check(false, isKeyword(key, version), "keyword", version);
check(true, isName(key, version), "name", version);
for (String key : restrictedKeywords) {
for (SourceVersion version : SourceVersion.values()) {
check(false, key, (String s) -> isKeyword(s, version), "keyword", version);
check(true, key, (String s) -> isName(s, version), "name", version);
}
}
}
private static void testVar() {
for (SourceVersion version : SourceVersion.values()) {
Predicate<String> isKeywordVersion = (String s) -> isKeyword(s, version);
Predicate<String> isNameVersion = (String s) -> isName(s, version);
for(SourceVersion version : SourceVersion.values()) {
check(false, isKeyword("var", version), "keyword", version);
check(false, isKeyword("foo.var", version), "keyword", version);
check(false, isKeyword("var.foo", version), "keyword", version);
check(true, isName("var", version), "name", version);
check(true, isName("foo.var", version), "name", version);
check(true, isName("var.foo", version), "name", version);
for (String name : List.of("var", "foo.var", "var.foo")) {
check(false, name, isKeywordVersion, "keyword", version);
check(true, name, isNameVersion, "name", version);
}
}
}
private static void check(boolean result, boolean expected,
String message, SourceVersion version) {
private static void testYield() {
for (SourceVersion version : SourceVersion.values()) {
Predicate<String> isKeywordVersion = (String s) -> isKeyword(s, version);
Predicate<String> isNameVersion = (String s) -> isName(s, version);
for (String name : List.of("yield", "foo.yield", "yield.foo")) {
check(false, name, isKeywordVersion, "keyword", version);
check(true, name, isNameVersion, "name", version);
}
}
}
private static void check(boolean expected,
String input,
Predicate<String> predicate,
String message,
SourceVersion version) {
boolean result = predicate.test(input);
if (result != expected) {
throw new RuntimeException("Unexpected " + message + "-ness of _ on " + version);
throw new RuntimeException("Unexpected " + message + "-ness of " + input +
" on " + version);
}
}
}