Skip to content

D
dragonwell8_langtools

openanolis / dragonwell8_langtools

通知 0
Star 2
Fork 0
D
dragonwell8_langtools
提交 4e0eab42 编写于 作者: B bpatel
浏览文件
操作

Merge

上级 ace9fd90 d1b49027
显示空白变更内容
内联 并排
Showing with 1013 addition and 37 deletion
.hgtags
浏览文件 @ 4e0eab42
...@@ -95,3 +95,4 @@ e4e7408cdc5b3d91d39161e1e94aad576ecc2dcd jdk7-b114 ...@@ -95,3 +95,4 @@ e4e7408cdc5b3d91d39161e1e94aad576ecc2dcd jdk7-b114
c491eec0acc73fa41b77e1619ed03e56d8a75b83 jdk7-b118 c491eec0acc73fa41b77e1619ed03e56d8a75b83 jdk7-b118
814561077c448292f78de461b6de5d78d57c2089 jdk7-b119 814561077c448292f78de461b6de5d78d57c2089 jdk7-b119
1dd813a529cfa06d850ee7dc42da42efb8f6af0e jdk7-b120 1dd813a529cfa06d850ee7dc42da42efb8f6af0e jdk7-b120
1bf969e9792f977a8593496681539840a54fe644 jdk7-b121
src/share/classes/com/sun/tools/apt/main/JavaCompiler.java → src/share/classes/com/sun/tools/apt/main/AptJavaCompiler.java
浏览文件 @ 4e0eab42
...@@ -51,16 +51,16 @@ import com.sun.tools.javac.parser.DocCommentScanner; ...@@ -51,16 +51,16 @@ import com.sun.tools.javac.parser.DocCommentScanner;
* or deletion without notice.</b> * or deletion without notice.</b>
*/ */
@SuppressWarnings("deprecation") @SuppressWarnings("deprecation")
public class JavaCompiler extends com.sun.tools.javac.main.JavaCompiler { public class AptJavaCompiler extends com.sun.tools.javac.main.JavaCompiler {
/** The context key for the compiler. */ /** The context key for the compiler. */
protected static final Context.Key<JavaCompiler> compilerKey = protected static final Context.Key<AptJavaCompiler> compilerKey =
new Context.Key<JavaCompiler>(); new Context.Key<AptJavaCompiler>();
/** Get the JavaCompiler instance for this context. */ /** Get the JavaCompiler instance for this context. */
public static JavaCompiler instance(Context context) { public static AptJavaCompiler instance(Context context) {
JavaCompiler instance = context.get(compilerKey); AptJavaCompiler instance = context.get(compilerKey);
if (instance == null) if (instance == null)
instance = new JavaCompiler(context); instance = new AptJavaCompiler(context);
return instance; return instance;
} }
...@@ -107,7 +107,7 @@ public class JavaCompiler extends com.sun.tools.javac.main.JavaCompiler { ...@@ -107,7 +107,7 @@ public class JavaCompiler extends com.sun.tools.javac.main.JavaCompiler {
/** Construct a new compiler from a shared context. /** Construct a new compiler from a shared context.
*/ */
public JavaCompiler(Context context) { public AptJavaCompiler(Context context) {
super(preRegister(context)); super(preRegister(context));
context.put(compilerKey, this); context.put(compilerKey, this);
......
src/share/classes/com/sun/tools/apt/main/Main.java
浏览文件 @ 4e0eab42
...@@ -421,7 +421,7 @@ public class Main { ...@@ -421,7 +421,7 @@ public class Main {
}, },
new AptOption("-version", "opt.version") { new AptOption("-version", "opt.version") {
boolean process(String option) { boolean process(String option) {
Bark.printLines(out, ownName + " " + JavaCompiler.version()); Bark.printLines(out, ownName + " " + AptJavaCompiler.version());
return super.process(option); return super.process(option);
} }
}, },
...@@ -1111,11 +1111,11 @@ public class Main { ...@@ -1111,11 +1111,11 @@ public class Main {
} }
int exitCode = EXIT_OK; int exitCode = EXIT_OK;
JavaCompiler comp = null; AptJavaCompiler comp = null;
try { try {
context.put(Bark.outKey, out); context.put(Bark.outKey, out);
comp = JavaCompiler.instance(context); comp = AptJavaCompiler.instance(context);
if (comp == null) if (comp == null)
return EXIT_SYSERR; return EXIT_SYSERR;
...@@ -1184,7 +1184,7 @@ public class Main { ...@@ -1184,7 +1184,7 @@ public class Main {
*/ */
void bugMessage(Throwable ex) { void bugMessage(Throwable ex) {
Bark.printLines(out, getLocalizedString("msg.bug", Bark.printLines(out, getLocalizedString("msg.bug",
JavaCompiler.version())); AptJavaCompiler.version()));
ex.printStackTrace(out); ex.printStackTrace(out);
} }
......
src/share/classes/com/sun/tools/apt/mirror/apt/FilerImpl.java
浏览文件 @ 4e0eab42
...@@ -120,7 +120,7 @@ public class FilerImpl implements Filer { ...@@ -120,7 +120,7 @@ public class FilerImpl implements Filer {
private final Options opts; private final Options opts;
private final DeclarationMaker declMaker; private final DeclarationMaker declMaker;
private final com.sun.tools.apt.main.JavaCompiler comp; private final com.sun.tools.apt.main.AptJavaCompiler comp;
// Platform's default encoding // Platform's default encoding
private final static String DEFAULT_ENCODING = private final static String DEFAULT_ENCODING =
...@@ -177,7 +177,7 @@ public class FilerImpl implements Filer { ...@@ -177,7 +177,7 @@ public class FilerImpl implements Filer {
opts = Options.instance(context); opts = Options.instance(context);
declMaker = DeclarationMaker.instance(context); declMaker = DeclarationMaker.instance(context);
bark = Bark.instance(context); bark = Bark.instance(context);
comp = com.sun.tools.apt.main.JavaCompiler.instance(context); comp = com.sun.tools.apt.main.AptJavaCompiler.instance(context);
roundOver = false; roundOver = false;
this.filesCreated = comp.getAggregateGenFiles(); this.filesCreated = comp.getAggregateGenFiles();
......
src/share/classes/com/sun/tools/javac/code/Type.java
浏览文件 @ 4e0eab42
...@@ -245,7 +245,7 @@ public class Type implements PrimitiveType { ...@@ -245,7 +245,7 @@ public class Type implements PrimitiveType {
public String argtypes(boolean varargs) { public String argtypes(boolean varargs) {
List<Type> args = getParameterTypes(); List<Type> args = getParameterTypes();
if (!varargs) return args.toString(); if (!varargs) return args.toString();
StringBuffer buf = new StringBuffer(); StringBuilder buf = new StringBuilder();
while (args.tail.nonEmpty()) { while (args.tail.nonEmpty()) {
buf.append(args.head); buf.append(args.head);
args = args.tail; args = args.tail;
...@@ -935,7 +935,7 @@ public class Type implements PrimitiveType { ...@@ -935,7 +935,7 @@ public class Type implements PrimitiveType {
public static class TypeVar extends Type implements TypeVariable { public static class TypeVar extends Type implements TypeVariable {
/** The bound of this type variable; set from outside. /** The upper bound of this type variable; set from outside.
* Must be nonempty once it is set. * Must be nonempty once it is set.
* For a bound, `bound' is the bound type itself. * For a bound, `bound' is the bound type itself.
* Multiple bounds are expressed as a single class type which has the * Multiple bounds are expressed as a single class type which has the
...@@ -946,6 +946,12 @@ public class Type implements PrimitiveType { ...@@ -946,6 +946,12 @@ public class Type implements PrimitiveType {
* points to the first class or interface bound. * points to the first class or interface bound.
*/ */
public Type bound = null; public Type bound = null;
/** The lower bound of this type variable.
* TypeVars don't normally have a lower bound, so it is normally set
* to syms.botType.
* Subtypes, such as CapturedType, may provide a different value.
*/
public Type lower; public Type lower;
public TypeVar(Name name, Symbol owner, Type lower) { public TypeVar(Name name, Symbol owner, Type lower) {
...@@ -965,10 +971,12 @@ public class Type implements PrimitiveType { ...@@ -965,10 +971,12 @@ public class Type implements PrimitiveType {
return v.visitTypeVar(this, s); return v.visitTypeVar(this, s);
} }
@Override
public Type getUpperBound() { return bound; } public Type getUpperBound() { return bound; }
int rank_field = -1; int rank_field = -1;
@Override
public Type getLowerBound() { public Type getLowerBound() {
return lower; return lower;
} }
...@@ -992,7 +1000,6 @@ public class Type implements PrimitiveType { ...@@ -992,7 +1000,6 @@ public class Type implements PrimitiveType {
*/ */
public static class CapturedType extends TypeVar { public static class CapturedType extends TypeVar {
public Type lower;
public WildcardType wildcard; public WildcardType wildcard;
public CapturedType(Name name, public CapturedType(Name name,
...@@ -1012,10 +1019,6 @@ public class Type implements PrimitiveType { ...@@ -1012,10 +1019,6 @@ public class Type implements PrimitiveType {
return v.visitCapturedType(this, s); return v.visitCapturedType(this, s);
} }
public Type getLowerBound() {
return lower;
}
@Override @Override
public boolean isCaptured() { public boolean isCaptured() {
return true; return true;
......
src/share/classes/com/sun/tools/javac/code/Types.java
浏览文件 @ 4e0eab42
...@@ -641,7 +641,7 @@ public class Types { ...@@ -641,7 +641,7 @@ public class Types {
if (!set.remove(new SingletonType(x))) if (!set.remove(new SingletonType(x)))
return false; return false;
} }
return (set.size() == 0); return (set.isEmpty());
} }
return t.tsym == s.tsym return t.tsym == s.tsym
&& visit(t.getEnclosingType(), s.getEnclosingType()) && visit(t.getEnclosingType(), s.getEnclosingType())
...@@ -838,26 +838,26 @@ public class Types { ...@@ -838,26 +838,26 @@ public class Types {
return isSameType(t, s); return isSameType(t, s);
} }
void debugContainsType(WildcardType t, Type s) { // void debugContainsType(WildcardType t, Type s) {
System.err.println(); // System.err.println();
System.err.format(" does %s contain %s?%n", t, s); // System.err.format(" does %s contain %s?%n", t, s);
System.err.format(" %s U(%s) <: U(%s) %s = %s%n", // System.err.format(" %s U(%s) <: U(%s) %s = %s%n",
upperBound(s), s, t, U(t), // upperBound(s), s, t, U(t),
t.isSuperBound() // t.isSuperBound()
|| isSubtypeNoCapture(upperBound(s), U(t))); // || isSubtypeNoCapture(upperBound(s), U(t)));
System.err.format(" %s L(%s) <: L(%s) %s = %s%n", // System.err.format(" %s L(%s) <: L(%s) %s = %s%n",
L(t), t, s, lowerBound(s), // L(t), t, s, lowerBound(s),
t.isExtendsBound() // t.isExtendsBound()
|| isSubtypeNoCapture(L(t), lowerBound(s))); // || isSubtypeNoCapture(L(t), lowerBound(s)));
System.err.println(); // System.err.println();
} // }
@Override @Override
public Boolean visitWildcardType(WildcardType t, Type s) { public Boolean visitWildcardType(WildcardType t, Type s) {
if (s.tag >= firstPartialTag) if (s.tag >= firstPartialTag)
return containedBy(s, t); return containedBy(s, t);
else { else {
// debugContainsType(t, s); // debugContainsType(t, s);
return isSameWildcard(t, s) return isSameWildcard(t, s)
|| isCaptureOf(s, t) || isCaptureOf(s, t)
|| ((t.isExtendsBound() || isSubtypeNoCapture(L(t), lowerBound(s))) && || ((t.isExtendsBound() || isSubtypeNoCapture(L(t), lowerBound(s))) &&
......
src/share/classes/com/sun/tools/javac/comp/Resolve.java
浏览文件 @ 4e0eab42
...@@ -197,7 +197,7 @@ public class Resolve { ...@@ -197,7 +197,7 @@ public class Resolve {
} }
return (checkInner == false || c.type.getEnclosingType() == Type.noType) ? return (checkInner == false || c.type.getEnclosingType() == Type.noType) ?
isAccessible : isAccessible :
isAccessible & isAccessible(env, c.type.getEnclosingType(), checkInner); isAccessible && isAccessible(env, c.type.getEnclosingType(), checkInner);
} }
//where //where
/** Is given class a subclass of given base class, or an inner class /** Is given class a subclass of given base class, or an inner class
...@@ -234,7 +234,6 @@ public class Resolve { ...@@ -234,7 +234,6 @@ public class Resolve {
} }
public boolean isAccessible(Env<AttrContext> env, Type site, Symbol sym, boolean checkInner) { public boolean isAccessible(Env<AttrContext> env, Type site, Symbol sym, boolean checkInner) {
if (sym.name == names.init && sym.owner != site.tsym) return false; if (sym.name == names.init && sym.owner != site.tsym) return false;
ClassSymbol sub;
switch ((short)(sym.flags() & AccessFlags)) { switch ((short)(sym.flags() & AccessFlags)) {
case PRIVATE: case PRIVATE:
return return
......
test/tools/javac/types/BoxingConversionTest.java 0 → 100644
浏览文件 @ 4e0eab42
/*
* Copyright (c) 2010, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 7006109
* @summary Add test library to simplify the task of writing automated type-system tests
* @author mcimadamore
* @library .
* @run main BoxingConversionTest
*/
import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.code.Type.*;
import com.sun.tools.javac.code.Symbol.*;
import java.lang.reflect.Array;
import java.util.EnumSet;
/**
* Check invariants in assignment/method conversion involving boxing conversions
*/
public class BoxingConversionTest extends TypeHarness {
Type[] types1;
Type[] types2;
Type[] types3;
enum Result {
OK_BOTH(true),
FAIL_BOTH(false),
OK_ASSIGN_ONLY(true);
boolean value;
Result(boolean value) {
this.value = value;
}
}
enum ConversionKind {
ASSIGNMENT_CONVERSION(EnumSet.of(Result.OK_BOTH, Result.OK_ASSIGN_ONLY)) {
@Override
void check(TypeHarness harness, Type from, Type to, Result expected) {
harness.assertAssignable(from, to, resSet.contains(expected));
}
},
METHOD_CONVERSION(EnumSet.of(Result.OK_BOTH)) {
@Override
void check(TypeHarness harness, Type from, Type to, Result expected) {
harness.assertConvertible(from, to, resSet.contains(expected));
}
};
EnumSet<Result> resSet;
private ConversionKind(EnumSet<Result> resSet) {
this.resSet = resSet;
}
abstract void check(TypeHarness harness, Type from, Type to, Result expected);
}
enum TestKind {
SIMPLE {
@Override
Type[] getFromTypes(BoxingConversionTest harness) {
return harness.types1;
}
@Override
Type[] getToTypes(BoxingConversionTest harness) {
return harness.types1;
}
@Override
Result[][] getResults(BoxingConversionTest harness) {
return harness.results1;
}
},
CONSTANT_TYPES {
@Override
Type[] getFromTypes(BoxingConversionTest harness) {
return harness.types2;
}
@Override
Type[] getToTypes(BoxingConversionTest harness) {
return harness.types3;
}
@Override
Result[][] getResults(BoxingConversionTest harness) {
return harness.results2;
}
};
abstract Type[] getFromTypes(BoxingConversionTest harness);
abstract Type[] getToTypes(BoxingConversionTest harness);
abstract Result[][] getResults(BoxingConversionTest harness);
}
static final Result T = Result.OK_BOTH;
static final Result F = Result.FAIL_BOTH;
static final Result A = Result.OK_ASSIGN_ONLY;
static final Result X = Result.FAIL_BOTH.FAIL_BOTH;
Result[][] results1 = {
//byte, short, int, long, float, double, char, bool, Byte, Short, Integer, Long, Float, Double, Character, Boolean
/*byte*/ { T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , F },
/*short*/ { F , T , T , T , T , T , F , F , F , T , F , F , F , F , F , F },
/*int*/ { F , F , T , T , T , T , F , F , F , F , T , F , F , F , F , F },
/*long*/ { F , F , F , T , T , T , F , F , F , F , F , T , F , F , F , F },
/*float*/ { F , F , F , F , T , T , F , F , F , F , F , F , T , F , F , F },
/*double*/ { F , F , F , F , F , T , F , F , F , F , F , F , F , T , F , F },
/*char*/ { F , F , T , T , T , T , T , F , F , F , F , F , F , F , T , F },
/*bool*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T },
/*Byte*/ { T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , F },
/*Short*/ { F , T , T , T , T , T , F , F , F , T , F , F , F , F , F , F },
/*Integer*/ { F , F , T , T , T , T , F , F , F , F , T , F , F , F , F , F },
/*Long*/ { F , F , F , T , T , T , F , F , F , F , F , T , F , F , F , F },
/*Float*/ { F , F , F , F , T , T , F , F , F , F , F , F , T , F , F , F },
/*Double*/ { F , F , F , F , F , T , F , F , F , F , F , F , F , T , F , F },
/*Character*/ { F , F , T , T , T , T , T , F , F , F , F , F , F , F , T , F },
/*Boolean*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T }};
Result[][] results2 = {
//Byte, Short, Integer, Long, Float, Double, Chararacter, Boolean
/*byte*/ { T , F , F , F , F , F , F , F },
/*short*/ { F , T , F , F , F , F , F , F },
/*short1*/ { A , T , F , F , F , F , A , F },
/*short2*/ { F , T , F , F , F , F , A , F },
/*int*/ { F , F , T , F , F , F , F , F },
/*int1*/ { A , A , T , F , F , F , A , F },
/*int2*/ { F , A , T , F , F , F , A , F },
/*int4*/ { F , F , T , F , F , F , F , F },
/*long*/ { F , F , F , T , F , F , F , F },
/*long1*/ { F , F , F , T , F , F , F , F },
/*long2*/ { F , F , F , T , F , F , F , F },
/*long4*/ { F , F , F , T , F , F , F , F },
/*long8*/ { F , F , F , T , F , F , F , F },
/*float*/ { F , F , F , F , T , F , F , F },
/*float1*/ { F , F , F , F , T , F , F , F },
/*float2*/ { F , F , F , F , T , F , F , F },
/*float4*/ { F , F , F , F , T , F , F , F },
/*double*/ { F , F , F , F , F , T , F , F },
/*double1*/ { F , F , F , F , F , T , F , F },
/*double2*/ { F , F , F , F , F , T , F , F },
/*double4*/ { F , F , F , F , F , T , F , F },
/*double8*/ { F , F , F , F , F , T , F , F },
/*char*/ { F , F , F , F , F , F , T , F },
/*char1*/ { A , A , F , F , F , F , T , F },
/*char2*/ { F , A , F , F , F , F , T , F },
/*bool*/ { F , F , F , F , F , F , F , T }};
BoxingConversionTest() {
Type[] primitiveTypes = new Type[] {
predef.byteType,
predef.shortType,
predef.intType,
predef.longType,
predef.floatType,
predef.doubleType,
predef.charType,
predef.booleanType };
Type[] boxedTypes = new Type[primitiveTypes.length];
for (int i = 0 ; i < primitiveTypes.length ; i++) {
boxedTypes[i] = box(primitiveTypes[i]);
}
types1 = join(Type.class, primitiveTypes, boxedTypes);
types2 = new Type[] {
predef.byteType,
predef.shortType,
fac.Constant((short)0x0001),
fac.Constant((short)0x0100),
predef.intType,
fac.Constant((int)0x0000_0001),
fac.Constant((int)0x0000_0100),
fac.Constant((int)0x0001_0000),
predef.longType,
fac.Constant((long)0x0000_0000_0000_0001L),
fac.Constant((long)0x0000_0000_0000_0100L),
fac.Constant((long)0x0000_0000_0001_0000L),
fac.Constant((long)0x0001_0000_0000_0000L),
predef.floatType,
fac.Constant((float)0x0000_0001),
fac.Constant((float)0x0000_0100),
fac.Constant((float)0x0001_0000),
predef.doubleType,
fac.Constant((double)0x0000_0000_0000_0001L),
fac.Constant((double)0x0000_0000_0000_0100L),
fac.Constant((double)0x0000_0000_0001_0000L),
fac.Constant((double)0x0001_0000_0000_0000L),
predef.charType,
fac.Constant((char)0x0001),
fac.Constant((char)0x0100),
predef.booleanType
};
types3 = boxedTypes;
}
void testConversion(ConversionKind convKind, TestKind testKind) {
Type[] rows = testKind.getFromTypes(this);
Type[] cols = testKind.getToTypes(this);
for (int i = 0; i < rows.length ; i++) {
for (int j = 0; j < cols.length ; j++) {
convKind.check(this, rows[i], cols[j], testKind.getResults(this)[i][j]);
}
}
}
@SuppressWarnings("unchecked")
<T> T[] join(Class<T> type, T[]... args) {
int totalLength = 0;
for (T[] arr : args) {
totalLength += arr.length;
}
T[] new_arr = (T[])Array.newInstance(type, totalLength);
int idx = 0;
for (T[] arr : args) {
System.arraycopy(arr, 0, new_arr, idx, arr.length);
idx += arr.length;
}
return new_arr;
}
public static void main(String[] args) {
BoxingConversionTest harness = new BoxingConversionTest();
for (ConversionKind convKind : ConversionKind.values()) {
for (TestKind testKind : TestKind.values()) {
harness.testConversion(convKind, testKind);
}
}
}
}
test/tools/javac/types/CastTest.java 0 → 100644
浏览文件 @ 4e0eab42
/*
* Copyright (c) 2010, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 7006109
* @summary Add test library to simplify the task of writing automated type-system tests
* @author mcimadamore
* @library .
* @run main CastTest
*/
import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.code.Type.*;
import com.sun.tools.javac.code.Symbol.*;
import java.lang.reflect.Array;
import static com.sun.tools.javac.code.Flags.*;
/**
* Check invariants in cast conversion involving primitive types and arrays
*/
public class CastTest extends TypeHarness {
Type[] allTypes;
static final boolean T = true;
static final boolean F = false;
boolean[][] cast_result = {
//byte, short, int, long, float, double, char, bool, C, +C, I, T, byte[], short[], int[], long[], float[], double[], char[], bool[], C[], +C[], I[], T[]
/*byte*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*short*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*int*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*long*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*float*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*double*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*char*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*bool*/ { F , F , F , F , F , F , F , T , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
/*C*/ { F , F , F , F , F , F , F , F , T, F , T, T, F , F , F , F , F , F , F , F , F , F , F , F },
/*+C*/ { F , F , F , F , F , F , F , F , F, T , F, T, F , F , F , F , F , F , F , F , F , F , F , F },
/*I*/ { F , F , F , F , F , F , F , F , T, F , T, T, F , F , F , F , F , F , F , F , F , F , F , F },
/*T*/ { F , F , F , F , F , F , F , F , T, T , T, T, T , T , T , T , T , T , T , T , T , T , T , T },
/*byte[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, T , F , F , F , F , F , F , F , F , F , F , F },
/*short[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , T , F , F , F , F , F , F , F , F , F , F },
/*int[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , T , F , F , F , F , F , F , F , F , F },
/*long[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , T , F , F , F , F , F , F , F , F },
/*float[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , T , F , F , F , F , F , F , F },
/*double[]*/{ F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , T , F , F , F , F , F , F },
/*char[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , T , F , F , F , F , F },
/*bool[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , T , F , F , F , F },
/*C[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , F , T , T },
/*+C[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , F , T , F , T },
/*I[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , F , T , T },
/*T[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , T , T , T }};
CastTest() {
Type[] primitiveTypes = {
predef.byteType,
predef.shortType,
predef.intType,
predef.longType,
predef.floatType,
predef.doubleType,
predef.charType,
predef.booleanType };
Type[] referenceTypes = {
fac.Class(),
fac.Class(FINAL),
fac.Interface(),
fac.TypeVariable() };
Type[] arrayTypes = new Type[primitiveTypes.length + referenceTypes.length];
int idx = 0;
for (Type t : join(Type.class, primitiveTypes, referenceTypes)) {
arrayTypes[idx++] = fac.Array(t);
}
allTypes = join(Type.class, primitiveTypes, referenceTypes, arrayTypes);
}
void test() {
for (int i = 0; i < allTypes.length ; i++) {
for (int j = 0; j < allTypes.length ; j++) {
assertCastable(allTypes[i], allTypes[j], cast_result[i][j]);
}
}
}
@SuppressWarnings("unchecked")
<T> T[] join(Class<T> type, T[]... args) {
int totalLength = 0;
for (T[] arr : args) {
totalLength += arr.length;
}
T[] new_arr = (T[])Array.newInstance(type, totalLength);
int idx = 0;
for (T[] arr : args) {
System.arraycopy(arr, 0, new_arr, idx, arr.length);
idx += arr.length;
}
return new_arr;
}
public static void main(String[] args) {
new CastTest().test();
}
}
test/tools/javac/types/PrimitiveConversionTest.java 0 → 100644
浏览文件 @ 4e0eab42
/*
* Copyright (c) 2010, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 7006109
* @summary Add test library to simplify the task of writing automated type-system tests
* @author mcimadamore
* @library .
* @run main PrimitiveConversionTest
*/
import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.code.Type.*;
import com.sun.tools.javac.code.Symbol.*;
import java.lang.reflect.Array;
import java.util.EnumSet;
/**
* Check invariants in assignment/method conversion involving primitive types and arrays
*/
public class PrimitiveConversionTest extends TypeHarness {
Type[] types1;
Type[] types2;
Type[] types3;
enum Result {
OK_BOTH(true),
FAIL_BOTH(false),
OK_ASSIGN_ONLY(true);
boolean value;
Result(boolean value) {
this.value = value;
}
}
enum ConversionKind {
ASSIGNMENT_CONVERSION(EnumSet.of(Result.OK_BOTH, Result.OK_ASSIGN_ONLY)) {
@Override
void check(TypeHarness harness, Type from, Type to, Result expected) {
harness.assertAssignable(from, to, resSet.contains(expected));
}
},
METHOD_CONVERSION(EnumSet.of(Result.OK_BOTH)) {
@Override
void check(TypeHarness harness, Type from, Type to, Result expected) {
harness.assertConvertible(from, to, resSet.contains(expected));
}
};
EnumSet<Result> resSet;
private ConversionKind(EnumSet<Result> resSet) {
this.resSet = resSet;
}
abstract void check(TypeHarness harness, Type from, Type to, Result expected);
}
enum TestKind {
SIMPLE {
@Override
Type[] getFromTypes(PrimitiveConversionTest harness) {
return harness.types1;
}
@Override
Type[] getToTypes(PrimitiveConversionTest harness) {
return harness.types1;
}
@Override
Result[][] getResults(PrimitiveConversionTest harness) {
return harness.results1;
}
},
CONSTANT_TYPES {
@Override
Type[] getFromTypes(PrimitiveConversionTest harness) {
return harness.types2;
}
@Override
Type[] getToTypes(PrimitiveConversionTest harness) {
return harness.types3;
}
@Override
Result[][] getResults(PrimitiveConversionTest harness) {
return harness.results2;
}
};
abstract Type[] getFromTypes(PrimitiveConversionTest harness);
abstract Type[] getToTypes(PrimitiveConversionTest harness);
abstract Result[][] getResults(PrimitiveConversionTest harness);
}
static final Result T = Result.OK_BOTH;
static final Result F = Result.FAIL_BOTH;
static final Result A = Result.OK_ASSIGN_ONLY;
Result[][] results1 = {
//byte, short, int, long, float, double, char, bool, C1, C2, C3, T , byte[], short[], int[], long[], float[], double[], char[], bool[], C1[], C2[], C3[], T[]
/*byte*/ { T , T , T , T , T , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*short*/ { F , T , T , T , T , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*int*/ { F , F , T , T , T , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*long*/ { F , F , F , T , T , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*float*/ { F , F , F , F , T , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*double*/ { F , F , F , F , F , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*char*/ { F , F , T , T , T , T , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*bool*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*C1*/ { F , F , F , F , F , F , F , F , T , F , T , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*C2*/ { F , F , F , F , F , F , F , F , T , T , T , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*C3*/ { F , F , F , F , F , F , F , F , T , F , T , F , F , F , F , F , F , F , F , F , F , F , F , F },
/*T*/ { F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , F , F , F , F , F },
/*byte[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , F , F , F , F },
/*short[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , F , F , F },
/*int[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , F , F },
/*long[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , F },
/*float[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F , F , F },
/*double[]*/{ F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F , F },
/*char[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F , F },
/*bool[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , F , F , F },
/*C1[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , T , F },
/*C2[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , T , T , F },
/*C3[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T , F , T , F },
/*T[]*/ { F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , F , T }};
Result[][] results2 = {
//byte, short, int, long, float, double, char, bool
/*byte*/ { T , T , T , T , T , T , F , F },
/*short*/ { F , T , T , T , T , T , F , F },
/*short1*/ { A , T , T , T , T , T , A , F },
/*short2*/ { F , T , T , T , T , T , A , F },
/*int*/ { F , F , T , T , T , T , F , F },
/*int1*/ { A , A , T , T , T , T , A , F },
/*int2*/ { F , A , T , T , T , T , A , F },
/*int4*/ { F , F , T , T , T , T , F , F },
/*long*/ { F , F , F , T , T , T , F , F },
/*long1*/ { F , F , F , T , T , T , F , F },
/*long2*/ { F , F , F , T , T , T , F , F },
/*long4*/ { F , F , F , T , T , T , F , F },
/*long8*/ { F , F , F , T , T , T , F , F },
/*float*/ { F , F , F , F , T , T , F , F },
/*float1*/ { F , F , F , F , T , T , F , F },
/*float2*/ { F , F , F , F , T , T , F , F },
/*float4*/ { F , F , F , F , T , T , F , F },
/*double*/ { F , F , F , F , F , T , F , F },
/*double1*/ { F , F , F , F , F , T , F , F },
/*double2*/ { F , F , F , F , F , T , F , F },
/*double4*/ { F , F , F , F , F , T , F , F },
/*double8*/ { F , F , F , F , F , T , F , F },
/*char*/ { F , F , T , T , T , T , T , F },
/*char1*/ { A , A , T , T , T , T , T , F },
/*char2*/ { F , A , T , T , T , T , T , F },
/*bool*/ { F , F , F , F , F , F , F , T }};
PrimitiveConversionTest() {
Type[] primitiveTypes = new Type[] {
predef.byteType,
predef.shortType,
predef.intType,
predef.longType,
predef.floatType,
predef.doubleType,
predef.charType,
predef.booleanType };
ClassType c1 = fac.Class(fac.TypeVariable());
ClassType c2 = fac.Class();
c2.supertype_field = subst(c1,
Mapping(c1.getTypeArguments().head, predef.stringType));
Type c3 = erasure(c1);
Type[] referenceTypes = {
subst(c1,
Mapping(c1.getTypeArguments().head, predef.stringType)),
c2,
c3,
fac.TypeVariable() };
Type[] arrayTypes = new Type[primitiveTypes.length + referenceTypes.length];
int idx = 0;
for (Type t : join(Type.class, primitiveTypes, referenceTypes)) {
arrayTypes[idx++] = fac.Array(t);
}
types1 = join(Type.class, primitiveTypes, referenceTypes, arrayTypes);
types2 = new Type[] {
predef.byteType,
predef.shortType,
fac.Constant((short)0x0001),
fac.Constant((short)0x0100),
predef.intType,
fac.Constant((int)0x0000_0001),
fac.Constant((int)0x0000_0100),
fac.Constant((int)0x0001_0000),
predef.longType,
fac.Constant((long)0x0000_0000_0000_0001L),
fac.Constant((long)0x0000_0000_0000_0100L),
fac.Constant((long)0x0000_0000_0001_0000L),
fac.Constant((long)0x0001_0000_0000_0000L),
predef.floatType,
fac.Constant((float)0x0000_0001),
fac.Constant((float)0x0000_0100),
fac.Constant((float)0x0001_0000),
predef.doubleType,
fac.Constant((double)0x0000_0000_0000_0001L),
fac.Constant((double)0x0000_0000_0000_0100L),
fac.Constant((double)0x0000_0000_0001_0000L),
fac.Constant((double)0x0001_0000_0000_0000L),
predef.charType,
fac.Constant((char)0x0001),
fac.Constant((char)0x0100),
predef.booleanType
};
types3 = primitiveTypes;
}
void testConversion(ConversionKind convKind, TestKind testKind) {
Type[] rows = testKind.getFromTypes(this);
Type[] cols = testKind.getToTypes(this);
for (int i = 0; i < rows.length ; i++) {
for (int j = 0; j < cols.length ; j++) {
convKind.check(this, rows[i], cols[j], testKind.getResults(this)[i][j]);
}
}
}
@SuppressWarnings("unchecked")
<T> T[] join(Class<T> type, T[]... args) {
int totalLength = 0;
for (T[] arr : args) {
totalLength += arr.length;
}
T[] new_arr = (T[])Array.newInstance(type, totalLength);
int idx = 0;
for (T[] arr : args) {
System.arraycopy(arr, 0, new_arr, idx, arr.length);
idx += arr.length;
}
return new_arr;
}
public static void main(String[] args) {
PrimitiveConversionTest harness = new PrimitiveConversionTest();
for (ConversionKind convKind : ConversionKind.values()) {
for (TestKind testKind : TestKind.values()) {
harness.testConversion(convKind, testKind);
}
}
}
}
test/tools/javac/types/TypeHarness.java 0 → 100644
浏览文件 @ 4e0eab42
/*
* Copyright (c) 2010, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import com.sun.tools.javac.code.BoundKind;
import com.sun.tools.javac.code.Flags;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.code.Types;
import com.sun.tools.javac.code.Symtab;
import com.sun.tools.javac.code.Type;
import com.sun.tools.javac.code.Type.*;
import com.sun.tools.javac.code.Symbol.*;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.ListBuffer;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Names;
import com.sun.tools.javac.file.JavacFileManager;
/**
* Test harness whose goal is to simplify the task of writing type-system
* regression test. It provides functionalities to build custom types as well
* as to access the underlying javac's symbol table in order to retrieve
* predefined types. Among the features supported by the harness are: type
* substitution, type containment, subtyping, cast-conversion, assigment
* conversion.
*
* This class is meant to be a common super class for all concrete type test
* classes. A subclass can access the type-factory and the test methods so as
* to write compact tests. An example is reported below:
*
* <pre>
* Type X = fac.TypeVariable();
* Type Y = fac.TypeVariable();
* Type A_X_Y = fac.Class(0, X, Y);
* Type A_Obj_Obj = fac.Class(0,
* predef.objectType,
* predef.objectType);
* checkSameType(A_Obj_Obj, subst(A_X_Y,
* Mapping(X, predef.objectType),
* Mapping(Y, predef.objectType)));
* </pre>
*
* The above code is used to create two class types, namely {@code A<X,Y>} and
* {@code A<Object,Object>} where both {@code X} and {@code Y} are type-variables.
* The code then verifies that {@code [X:=Object,Y:=Object]A<X,Y> == A<Object,Object>}.
*
* @author mcimadamore
*/
public class TypeHarness {
protected Types types;
protected Symtab predef;
protected Names names;
protected Factory fac;
protected TypeHarness() {
Context ctx = new Context();
JavacFileManager.preRegister(ctx);
types = Types.instance(ctx);
predef = Symtab.instance(ctx);
names = Names.instance(ctx);
fac = new Factory();
}
// <editor-fold defaultstate="collapsed" desc="type assertions">
/** assert that 's' is a subtype of 't' */
public void assertSubtype(Type s, Type t) {
assertSubtype(s, t, true);
}
/** assert that 's' is/is not a subtype of 't' */
public void assertSubtype(Type s, Type t, boolean expected) {
if (types.isSubtype(s, t) != expected) {
String msg = expected ?
" is not a subtype of " :
" is a subtype of ";
error(s + msg + t);
}
}
/** assert that 's' is the same type as 't' */
public void assertSameType(Type s, Type t) {
assertSameType(s, t, true);
}
/** assert that 's' is/is not the same type as 't' */
public void assertSameType(Type s, Type t, boolean expected) {
if (types.isSameType(s, t) != expected) {
String msg = expected ?
" is not the same type as " :
" is the same type as ";
error(s + msg + t);
}
}
/** assert that 's' is castable to 't' */
public void assertCastable(Type s, Type t) {
assertCastable(s, t, true);
}
/** assert that 's' is/is not castable to 't' */
public void assertCastable(Type s, Type t, boolean expected) {
if (types.isCastable(s, t) != expected) {
String msg = expected ?
" is not castable to " :
" is castable to ";
error(s + msg + t);
}
}
/** assert that 's' is convertible (method invocation conversion) to 't' */
public void assertConvertible(Type s, Type t) {
assertCastable(s, t, true);
}
/** assert that 's' is/is not convertible (method invocation conversion) to 't' */
public void assertConvertible(Type s, Type t, boolean expected) {
if (types.isConvertible(s, t) != expected) {
String msg = expected ?
" is not convertible to " :
" is convertible to ";
error(s + msg + t);
}
}
/** assert that 's' is assignable to 't' */
public void assertAssignable(Type s, Type t) {
assertCastable(s, t, true);
}
/** assert that 's' is/is not assignable to 't' */
public void assertAssignable(Type s, Type t, boolean expected) {
if (types.isAssignable(s, t) != expected) {
String msg = expected ?
" is not assignable to " :
" is assignable to ";
error(s + msg + t);
}
}
// </editor-fold>
private void error(String msg) {
throw new AssertionError("Unexpected result: " + msg);
}
// <editor-fold defaultstate="collapsed" desc="type functions">
/** compute the erasure of a type 't' */
public Type erasure(Type t) {
return types.erasure(t);
}
/** compute the capture of a type 't' */
public Type capture(Type t) {
return types.capture(t);
}
/** compute the boxed type associated with 't' */
public Type box(Type t) {
if (!t.isPrimitive()) {
throw new AssertionError("Cannot box non-primitive type: " + t);
}
return types.boxedClass(t).type;
}
/** compute the unboxed type associated with 't' */
public Type unbox(Type t) {
Type u = types.unboxedType(t);
if (t == null) {
throw new AssertionError("Cannot unbox reference type: " + t);
} else {
return u;
}
}
/** compute a type substitution on 't' given a list of type mappings */
public Type subst(Type t, Mapping... maps) {
ListBuffer<Type> from = ListBuffer.lb();
ListBuffer<Type> to = ListBuffer.lb();
for (Mapping tm : maps) {
from.append(tm.from);
to.append(tm.to);
}
return types.subst(t, from.toList(), to.toList());
}
/** create a fresh type mapping from a type to another */
public Mapping Mapping(Type from, Type to) {
return new Mapping(from, to);
}
public static class Mapping {
Type from;
Type to;
private Mapping(Type from, Type to) {
this.from = from;
this.to = to;
}
}
// </editor-fold>
// <editor-fold defaultstate="collapsed" desc="type factory">
/**
* This class is used to create Java types in a simple way. All main
* kinds of type are supported: primitive, reference, non-denotable. The
* factory also supports creation of constant types (used by the compiler
* to represent the type of a literal).
*/
public class Factory {
private int synthNameCount = 0;
private Name syntheticName() {
return names.fromString("A$" + synthNameCount++);
}
public ClassType Class(long flags, Type... typeArgs) {
ClassSymbol csym = new ClassSymbol(flags, syntheticName(), predef.noSymbol);
csym.type = new ClassType(Type.noType, List.from(typeArgs), csym);
((ClassType)csym.type).supertype_field = predef.objectType;
return (ClassType)csym.type;
}
public ClassType Class(Type... typeArgs) {
return Class(0, typeArgs);
}
public ClassType Interface(Type... typeArgs) {
return Class(Flags.INTERFACE, typeArgs);
}
public ClassType Interface(long flags, Type... typeArgs) {
return Class(Flags.INTERFACE | flags, typeArgs);
}
public Type Constant(byte b) {
return predef.byteType.constType(b);
}
public Type Constant(short s) {
return predef.shortType.constType(s);
}
public Type Constant(int i) {
return predef.intType.constType(i);
}
public Type Constant(long l) {
return predef.longType.constType(l);
}
public Type Constant(float f) {
return predef.floatType.constType(f);
}
public Type Constant(double d) {
return predef.doubleType.constType(d);
}
public Type Constant(char c) {
return predef.charType.constType(c + 0);
}
public ArrayType Array(Type elemType) {
return new ArrayType(elemType, predef.arrayClass);
}
public TypeVar TypeVariable() {
return TypeVariable(predef.objectType);
}
public TypeVar TypeVariable(Type bound) {
TypeSymbol tvsym = new TypeSymbol(0, syntheticName(), null, predef.noSymbol);
tvsym.type = new TypeVar(tvsym, bound, null);
return (TypeVar)tvsym.type;
}
public WildcardType Wildcard(BoundKind bk, Type bound) {
return new WildcardType(bound, bk, predef.boundClass);
}
public CapturedType CapturedVariable(Type upper, Type lower) {
return new CapturedType(syntheticName(), predef.noSymbol, upper, lower, null);
}
public ClassType Intersection(Type classBound, Type... intfBounds) {
ClassType ct = Class(Flags.COMPOUND);
ct.supertype_field = classBound;
ct.interfaces_field = List.from(intfBounds);
return ct;
}
}
// </editor-fold>
}
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或