jdk-24/test/langtools/tools/javac/lambda/LambdaTestStrictFPFlag.java
2024-05-17 12:24:39 +00:00

81 lines
2.6 KiB
Java

/*
* Copyright (c) 2014, 2024, 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
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*/
/*
* @test
* @bug 8046060
* @summary Different results of floating point multiplication for lambda code block
* @library /tools/lib /test/lib
* @enablePreview
* @run main LambdaTestStrictFPFlag
*/
import jdk.test.lib.compiler.CompilerUtils;
import toolbox.ToolBox;
import java.lang.classfile.ClassFile;
import java.lang.classfile.ClassModel;
import java.lang.classfile.MethodModel;
import java.nio.file.Path;
public class LambdaTestStrictFPFlag {
private static final String SOURCE = """
class Test {
strictfp void test() {
Face itf = () -> { };
}
}
interface Face {
void m();
}
""";
public static void main(String[] args) throws Exception {
new LambdaTestStrictFPFlag().run();
}
void run() throws Exception {
Path src = Path.of("src");
Path out = Path.of("out");
ToolBox toolBox = new ToolBox();
toolBox.writeJavaFiles(src, SOURCE);
CompilerUtils.compile(src, out, "--release", "16");
ClassModel cm = ClassFile.of().parse(out.resolve("Test.class"));
boolean found = false;
for (MethodModel meth: cm.methods()) {
if (meth.methodName().stringValue().startsWith("lambda$")) {
if ((meth.flags().flagsMask() & ClassFile.ACC_STRICT) == 0){
throw new Exception("strict flag missing from lambda");
}
found = true;
}
}
if (!found) {
throw new Exception("did not find lambda method");
}
}
}