函数式编程 - Type Class 介绍（函数typedef）

25-02-28 14

在这篇文章中，我们将带领您了解函数式编程-TypeClass介绍的全貌，包括函数typedef的相关情况。同时，我们还将为您介绍有关c–模板,decltype和非classtypes、com.sun.

在这篇文章中，我们将带领您了解函数式编程 - Type Class 介绍的全貌，包括函数typedef的相关情况。同时，我们还将为您介绍有关c – 模板,decltype和非classtypes、com.sun.tools.classfile.Type.ClassSigType的实例源码、com.sun.tools.classfile.Type.ClassType的实例源码、com.sun.tools.classfile.Type.TypeParamType的实例源码的知识，以帮助您更好地理解这个主题。

本文目录一览：

函数式编程 - Type Class 介绍（函数typedef）
c – 模板,decltype和非classtypes
com.sun.tools.classfile.Type.ClassSigType的实例源码
com.sun.tools.classfile.Type.ClassType的实例源码
com.sun.tools.classfile.Type.TypeParamType的实例源码

函数式编程 - Type Class 介绍（函数typedef）

什么是 Type Class ？

Type Class (类型类) 的概念来自 Haskell，表示一系列函数的集合，在概念上， Type Class 和面向对象领域的泛型接口比较类似。

由于 Haskell 是一门纯函数式编程语言，没有类和接口的概念，所以使用 Type Class 表达类似接口的概念。例如 Haskell 的 Ord 类型类在概念上和 Java 的 Comparable 非常类似。

在 Haskell 中，Type Class 使用 class 关键字定义：

class BasicEq a where
    isEqual :: a -> a -> Bool
    isEqual x y = not (isNotEqual x y)

    isNotEqual :: a -> a -> Bool
    isNotEqual x y = not (isEqual x y)

Type Class Instance 则使用 instance 关键字定义：

instance BasicEq Bool where
    isEqual False False = True
    isEqual True  True  = True
    isEqual _     _     = False

只要定义了 Bool 类型的 Type Class Instance，我们就可以在任何地方使用 isEqual 方法比较 Bool 类型的相等性。用面向对象的语言描述就是：Bool 类型实现了 BasicEq 接口。

Type Class 的好处是，当系统增加一个新类型时，只需要实现该新类型的 Type Class Instance 即可，已有类型代码可以保持不变。

Java中的 Type Class

在面向对象领域使用接口解决类似 Type Class 的问题，例如 Java 的 Comparable 接口。但是接口的方式并不优雅，它要求新类型必须实现 Comparable 接口，如果这个新类型来自第三方库，我们无法强制要求它实现 Comparable 接口。所以在面向对象领域，我们仍然可以借鉴 Type Class 的方式以解决接口所面临的问题。所以 Java 提供了一个 Type Class 的等价物，即 Comparator<T>接口，所有实现了Comparator<T>接口的实例即为 Type Class Instance。针对一个新类型Person，我们只需要实现一个Comparator<Person>实例，即可以在任何地方对Person集合进行排序。

Scala 中的 Type Class

同样的，Scala 的核心库设计中也采用了 Type Class 的概念。例如Ordering[T] 是一个 Type Class, IntOrdering 是一个 Type Class Instance。所以只要有IntOrdering实例，我们就可以对Int类型进行排序：

def sorted[B >: A](implicit ord : scala.math.Ordering[B])

由于Ordering中已经预定了常见的Type Class Instance 的隐式对象，所以我们可以在任何地方对常见类型进行排序。

c – 模板,decltype和非classtypes

我有一个像这样的函数定义

template <typename T>
auto print(T t) -> decltype(t.print()) {
    return t.print();
}

这个想法是参数必须是T类型,并且必须具有print函数.这个打印功能可以返回任何内容,解释了decltype的需要.例如,您可以这样做：

struct Foo
{
    int print()
    {
        return 42;
    }
};

struct Bar
{
    std::string print()
    {
        return "The answer...";
    }
};

...

std::cout << print(Foo()) << std::endl;    
std::cout << print(Bar()) << std::endl;
/* outputs: 
42
The answer...
*/

我读到模板不能进行运行时实例化,并且您可以从类派生类,然后确定它们的类型以查看要使用的模板参数.但是,我如何为非类型类型执行此操作？这个想法是能够：

template <typename T>
T print(T t) {
    return t;
}

同样,但这给了我模糊的过载错误.资格认证不起作用,即打印< Foo>.另一个得到的问题是,如果我有一个类似的仿函数：

struct Foo
{
  virtual int print();
  operator int() const
  {
    return 42;
  }
};

它现在如何决定？

所以我的问题是,是否可以使用模板解决所有这些歧义,或者我是否必须编写一堆冗余代码？

测试

我逐步添加测试,从下面复制/粘贴每个编辑的解决方案.结果如下：

使用以下课程：

struct Foo
{
    int print()
    {
        return 42;
    }

    operator int() const
    {
        return 32;
    }
};

struct Bar
{
    std::string print()
    {
        return "The answer...";
    }

    operator int() const
    {
        return (int)Foo();
    }
};

struct Baz
{
    operator std::string() const
    {
        return std::string("The answer...");
    }
};

以下测试输出：

std::cout << print(Foo()) << std::endl;    
std::cout << print(Bar()) << std::endl;
std::cout << print(42) << std::endl;
std::cout << print((int)Foo()) << std::endl;
std::cout << print("The answer...") << std::endl;
std::cout << print(std::string("The answer...")) << std::endl;
std::cout << print((int)Bar()) << std::endl;
std::cout << print((std::string)Baz()) << std::endl;

两者都正确输出：

42
The answer...
42
32
The answer...
The answer...
32
The answer...

解决方法

您可以采用以下方法,如果存在这样的成员函数,则在输入上调用print()成员函数,否则它将返回输入本身：

namespace detail
{
    template<typename T,typename = void>
    struct print_helper
    {
        static T print(T t) {
            return t;
        }
    };

    template<typename T>
    struct print_helper<T,decltype(std::declval<T>().print(),(void)0)>
    {
        static auto print(T t) -> decltype(t.print()) {
            return t.print();
        }
    };
}

template<typename T>
auto print(T t) -> decltype(detail::print_helper<T>::print(t))
{
    return detail::print_helper<T>::print(t);
}

这是一个live example.

com.sun.tools.classfile.Type.ClassSigType的实例源码

项目：Openjsharp 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,StringBuilder sb) {
    appendIfNotEmpty(sb,"<",type.typeParamTypes,">");
    if (isInterface) {
        appendIfNotEmpty(sb," extends ",type.superinterfaceTypes,"");
    } else {
        if (type.superclasstype != null
                && (options.verbose || !type.superclasstype.isObject())) {
            sb.append(" extends ");
            append(sb,type.superclasstype);
        }
        appendIfNotEmpty(sb," implements ","");
    }
    return sb;
}

项目：openjdk-jdk10 文件：ClassWriter.java

@Override
public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：openjdk-jdk10 文件：T6888367.java

public String visitClassSigType(ClassSigType type,Void p) {
    StringBuilder sb = new StringBuilder();
    sb.append("CS{");
    if (type.typeParamTypes != null)
        sb.append(print("<",">"));
    sb.append(print(type.superclasstype));
    if (type.superinterfaceTypes != null)
        sb.append(print("i(",")"));
    sb.append("}");
    return sb.toString();
}

项目：openjdk9 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：openjdk9 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：lookaside_java-1.8.0-openjdk 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：lookaside_java-1.8.0-openjdk 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：jsr308-langtools 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：jsr308-langtools 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：infobip-open-jdk-8 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：infobip-open-jdk-8 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：openjdk-source-code-learn 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：openjdk-source-code-learn 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：OLD-OpenJDK8 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：OLD-OpenJDK8 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：s4j 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：s4j 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：jdk7-langtools 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：jdk7-langtools 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：javap 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：openjdk-icedtea7 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：openjdk-icedtea7 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：INF5000-StaticProxy 文件：ClassWriter.java

public StringBuilder visitClassSigType(ClassSigType type,"");
    }
    return sb;
}

项目：INF5000-StaticProxy 文件：T6888367.java

public String visitClassSigType(ClassSigType type,")"));
    sb.append("}");
    return sb.toString();
}

项目：Openjsharp 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：openjdk-jdk10 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：openjdk9 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：lookaside_java-1.8.0-openjdk 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：jsr308-langtools 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：infobip-open-jdk-8 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：openjdk-source-code-learn 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：OLD-OpenJDK8 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：s4j 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：jdk7-langtools 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：javap 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：openjdk-icedtea7 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

项目：INF5000-StaticProxy 文件：Dependencies.java

public Void visitClassSigType(ClassSigType type,Void p) {
    findDependencies(type.superclasstype);
    findDependencies(type.superinterfaceTypes);
    return null;
}

com.sun.tools.classfile.Type.ClassType的实例源码

项目：Openjsharp 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,StringBuilder sb) {
    if (type.outerType != null) {
        append(sb,type.outerType);
        sb.append(".");
    }
    sb.append(getJavaName(type.name));
    appendIfNotEmpty(sb,"<",type.typeArgs,">");
    return sb;
}

项目：openjdk-jdk10 文件：ClassWriter.java

@Override
public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：openjdk-jdk10 文件：T6888367.java

public String visitClasstype(Classtype type,Void p) {
    StringBuilder sb = new StringBuilder();
    sb.append("C{");
    if (type.outerType != null) {
        sb.append(print(type.outerType));
        sb.append(".");
    }
    sb.append(type.name);
    if (type.typeArgs != null)
        sb.append(print("<",">"));
    sb.append("}");
    return sb.toString();
}

项目：openjdk9 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：openjdk9 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：lookaside_java-1.8.0-openjdk 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：lookaside_java-1.8.0-openjdk 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：jsr308-langtools 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：jsr308-langtools 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：infobip-open-jdk-8 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：infobip-open-jdk-8 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：openjdk-source-code-learn 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：openjdk-source-code-learn 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：OLD-OpenJDK8 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：OLD-OpenJDK8 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：s4j 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：s4j 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：jdk7-langtools 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：jdk7-langtools 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：javap 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：openjdk-icedtea7 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：openjdk-icedtea7 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：INF5000-StaticProxy 文件：ClassWriter.java

public StringBuilder visitClasstype(Classtype type,">");
    return sb;
}

项目：INF5000-StaticProxy 文件：T6888367.java

public String visitClasstype(Classtype type,">"));
    sb.append("}");
    return sb.toString();
}

项目：Openjsharp 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.getBinaryName());
    findDependencies(type.typeArgs);
    return null;
}

项目：openjdk-jdk10 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.getBinaryName());
    findDependencies(type.typeArgs);
    return null;
}

项目：openjdk9 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.getBinaryName());
    findDependencies(type.typeArgs);
    return null;
}

项目：lookaside_java-1.8.0-openjdk 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.getBinaryName());
    findDependencies(type.typeArgs);
    return null;
}

项目：jsr308-langtools 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.getBinaryName());
    findDependencies(type.typeArgs);
    return null;
}

项目：infobip-open-jdk-8 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.getBinaryName());
    findDependencies(type.typeArgs);
    return null;
}

项目：openjdk-source-code-learn 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.name);
    findDependencies(type.typeArgs);
    return null;
}

项目：OLD-OpenJDK8 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.getBinaryName());
    findDependencies(type.typeArgs);
    return null;
}

项目：s4j 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.name);
    findDependencies(type.typeArgs);
    return null;
}

项目：jdk7-langtools 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.name);
    findDependencies(type.typeArgs);
    return null;
}

项目：javap 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.name);
    findDependencies(type.typeArgs);
    return null;
}

项目：openjdk-icedtea7 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.name);
    findDependencies(type.typeArgs);
    return null;
}

项目：INF5000-StaticProxy 文件：Dependencies.java

public Void visitClasstype(Classtype type,Void p) {
    findDependencies(type.outerType);
    addDependency(type.name);
    findDependencies(type.typeArgs);
    return null;
}

com.sun.tools.classfile.Type.TypeParamType的实例源码

项目：Openjsharp 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,StringBuilder sb) {
    sb.append(type.name);
    String sep = " extends ";
    if (type.classBound != null
            && (options.verbose || !type.classBound.isObject())) {
        sb.append(sep);
        append(sb,type.classBound);
        sep = " & ";
    }
    if (type.interfaceBounds != null) {
        for (Type bound: type.interfaceBounds) {
            sb.append(sep);
            append(sb,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：openjdk-jdk10 文件：ClassWriter.java

@Override
public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：openjdk9 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：lookaside_java-1.8.0-openjdk 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：jsr308-langtools 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：infobip-open-jdk-8 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：openjdk-source-code-learn 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：OLD-OpenJDK8 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：s4j 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：jdk7-langtools 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：javap 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：openjdk-icedtea7 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：INF5000-StaticProxy 文件：ClassWriter.java

public StringBuilder visitTypeParamType(TypeParamType type,bound);
            sep = " & ";
        }
    }
    return sb;
}

项目：openjdk-jdk10 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,Void p) {
    StringBuilder sb = new StringBuilder();
    sb.append("TA{");
    sb.append(type.name);
    if (type.classBound != null) {
        sb.append(":c");
        sb.append(print(type.classBound));
    }
    if (type.interfaceBounds != null)
        sb.append(print(":i",type.interfaceBounds,""));
    sb.append("}");
    return sb.toString();
}

项目：openjdk9 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：lookaside_java-1.8.0-openjdk 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：jsr308-langtools 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：infobip-open-jdk-8 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：openjdk-source-code-learn 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：OLD-OpenJDK8 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：s4j 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：jdk7-langtools 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：openjdk-icedtea7 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：INF5000-StaticProxy 文件：T6888367.java

public String visitTypeParamType(TypeParamType type,""));
    sb.append("}");
    return sb.toString();
}

项目：Openjsharp 文件：ClassWriter.java

String printTypeArgs(List<? extends TypeParamType> typeParamTypes) {
    StringBuilder builder = new StringBuilder();
    appendIfNotEmpty(builder,"<",typeParamTypes,"> ");
    return builder.toString();
}

项目：Openjsharp 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：openjdk-jdk10 文件：ClassWriter.java

String printTypeArgs(List<? extends TypeParamType> typeParamTypes) {
    StringBuilder builder = new StringBuilder();
    appendIfNotEmpty(builder,"> ");
    return builder.toString();
}

项目：openjdk-jdk10 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：openjdk9 文件：ClassWriter.java

String printTypeArgs(List<? extends TypeParamType> typeParamTypes) {
    StringBuilder builder = new StringBuilder();
    appendIfNotEmpty(builder,"> ");
    return builder.toString();
}

项目：openjdk9 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：lookaside_java-1.8.0-openjdk 文件：ClassWriter.java

String printTypeArgs(List<? extends TypeParamType> typeParamTypes) {
    StringBuilder builder = new StringBuilder();
    appendIfNotEmpty(builder,"> ");
    return builder.toString();
}

项目：lookaside_java-1.8.0-openjdk 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：jsr308-langtools 文件：ClassWriter.java

String printTypeArgs(List<? extends TypeParamType> typeParamTypes) {
    StringBuilder builder = new StringBuilder();
    appendIfNotEmpty(builder,"> ");
    return builder.toString();
}

项目：jsr308-langtools 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：infobip-open-jdk-8 文件：ClassWriter.java

String printTypeArgs(List<? extends TypeParamType> typeParamTypes) {
    StringBuilder builder = new StringBuilder();
    appendIfNotEmpty(builder,"> ");
    return builder.toString();
}

项目：infobip-open-jdk-8 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：openjdk-source-code-learn 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：OLD-OpenJDK8 文件：ClassWriter.java

String printTypeArgs(List<? extends TypeParamType> typeParamTypes) {
    StringBuilder builder = new StringBuilder();
    appendIfNotEmpty(builder,"> ");
    return builder.toString();
}

项目：OLD-OpenJDK8 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

项目：s4j 文件：Dependencies.java

public Void visitTypeParamType(TypeParamType type,Void p) {
    findDependencies(type.classBound);
    findDependencies(type.interfaceBounds);
    return null;
}

今天的关于函数式编程 - Type Class 介绍和函数typedef的分享已经结束，谢谢您的关注，如果想了解更多关于c – 模板,decltype和非classtypes、com.sun.tools.classfile.Type.ClassSigType的实例源码、com.sun.tools.classfile.Type.ClassType的实例源码、com.sun.tools.classfile.Type.TypeParamType的实例源码的相关知识，请在本站进行查询。

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