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新增对instantiatedType数组的支持

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This commit is contained in:
achao 2022-06-04 13:50:28 +08:00 committed by VampireAchao
parent 03fd58d455
commit 08ecda4cd2
2 changed files with 18 additions and 6 deletions
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20
hutool-core/src/main/java/cn/hutool/core/lang/func/LambdaInfo.java
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@ -2,7 +2,6 @@ package cn.hutool.core.lang.func;
import cn.hutool.core.classloader.ClassLoaderUtil;
import cn.hutool.core.reflect.FieldUtil;
import cn.hutool.core.text.StrUtil;
import java.lang.invoke.SerializedLambda;
import java.lang.reflect.Constructor;
@ -41,13 +40,22 @@ public class LambdaInfo {
}
int index = lambda.getInstantiatedMethodType().indexOf(";)");
if (index > -1) {
String[] instantiatedTypeNames = StrUtil.sub(lambda.getInstantiatedMethodType(), 2, index).split(";L");
this.instantiatedTypes = new Type[instantiatedTypeNames.length];
for (int i = 0; i < instantiatedTypeNames.length; i++) {
this.instantiatedTypes[i] = ClassLoaderUtil.loadClass(instantiatedTypeNames[i]);
boolean isArray = lambda.getInstantiatedMethodType().startsWith("([");
if (isArray) {
try {
this.instantiatedTypes = new Type[]{Class.forName(lambda.getInstantiatedMethodType().replace("/", ".").substring(0, index).substring(1) + ";")};
} catch (ClassNotFoundException e) {
throw new IllegalStateException(e);
}
} else {
String[] instantiatedTypeNames = lambda.getInstantiatedMethodType().substring(2, index).split(";L");
this.instantiatedTypes = new Type[instantiatedTypeNames.length];
for (int i = 0; i < instantiatedTypeNames.length; i++) {
this.instantiatedTypes[i] = ClassLoaderUtil.loadClass(instantiatedTypeNames[i]);
}
}
} else {
instantiatedTypes = new Type[0];
this.instantiatedTypes = new Type[0];
}
this.clazz = (Class<?>) FieldUtil.getFieldValue(executable, "clazz");
this.executable = executable;

4
hutool-core/src/test/java/cn/hutool/core/lang/func/LambdaUtilTest.java
View File

@ -128,6 +128,10 @@ public class LambdaUtilTest {
// 引用父类静态无参方法，能够获取到正确的参数类型
Func1<MyTeacher, ?> lambda = MyTeacher::takeIdBy;
Assert.assertEquals(MyTeacher.class, LambdaUtil.getRealClass(lambda));
}, () -> {
// 数组测试
VoidFunc1<String[]> lambda = (String[] stringList) -> {};
Assert.assertEquals(String[].class, LambdaUtil.getRealClass(lambda));
}).forEach(Runnable::run);
}