Java MethodSymbol类代码示例

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
/**
    * Returns true if this element represents a method which overrides a
    * method in one of its superclasses.
    */
   public boolean overridesMethod(ExecutableElement element) {
       MethodSymbol m = (MethodSymbol)element;
       if ((m.flags() & Flags.STATIC) == 0) {
           ClassSymbol owner = (ClassSymbol) m.owner;
           for (Type sup = jctypes.supertype(m.owner.type);
                   sup.hasTag(TypeTag.CLASS);
                   sup = jctypes.supertype(sup)) {
               for (Symbol sym : sup.tsym.members().getSymbolsByName(m.name)) {
                   if (m.overrides(sym, owner, jctypes, true)) 
                       return true;
               }
           }
       }
return false;
   }
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
/**Get javadoc for given element.
 * @deprecated The new DocTree API should be used to traverse Javadoc comments.
 * Use {@link DocTrees#getDocCommentTree(javax.lang.model.element.Element)} instead.
 */
@Deprecated
public Doc javaDocFor(Element element) {
    if (element != null) {
        DocEnv env = DocEnv.instance(ctx);
        switch (element.getKind()) {
            case ANNOTATION_TYPE:
            case CLASS:
            case ENUM:
            case INTERFACE:
                return env.getClassDoc((ClassSymbol)element);
            case ENUM_CONSTANT:
            case FIELD:
                return env.getFieldDoc((VarSymbol)element);
            case METHOD:
                if (((MethodSymbol)element).enclClass().getKind() == ElementKind.ANNOTATION_TYPE)
                    return env.getAnnotationTypeElementDoc((MethodSymbol)element);
                return env.getMethodDoc((MethodSymbol)element);
            case CONSTRUCTOR:
                return env.getConstructorDoc((MethodSymbol)element);
            case PACKAGE:
                return env.getPackageDoc((PackageSymbol)element);
        }
    }
    return null;
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
private void fillArtificalParamNames(final ClassSymbol clazz) {
    for (Symbol s : clazz.getEnclosedElements()) {
        if (s instanceof MethodSymbol) {
            MethodSymbol ms = (MethodSymbol) s;

            if (ms.getParameters().isEmpty()) {
                continue;
            }
            
            Set<String> usedNames = new HashSet<String>();
            
            for (VarSymbol vs : ms.getParameters()) {
                String name = JavaSourceAccessor.getINSTANCE().generateReadableParameterName(vs.asType().toString(), usedNames);

                vs.setName(clazz.name.table.fromString(name));
            }
        }
    }
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
protected JCMethodDecl(JCModifiers mods,
                       Name name,
                       JCExpression restype,
                       List<JCTypeParameter> typarams,
                       List<JCVariableDecl> params,
                       List<JCExpression> thrown,
                       JCBlock body,
                       JCExpression defaultValue,
                       MethodSymbol sym) {
    this.mods = mods;
    this.name = name;
    this.restype = restype;
    this.typarams = typarams;
    this.params = params;
    this.thrown = thrown;
    this.body = body;
    this.defaultValue = defaultValue;
    this.sym = sym;
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
/**
 * Returns a map from element names to their values in "dynamic
 * proxy return form".  Includes all elements, whether explicit or
 * defaulted.
 */
private Map<String, Object> getAllReflectedValues() {
    Map<String, Object> res = new LinkedHashMap<String, Object>();

    for (Map.Entry<MethodSymbol, Attribute> entry :
                                              getAllValues().entrySet()) {
        MethodSymbol meth = entry.getKey();
        Object value = generateValue(meth, entry.getValue());
        if (value != null) {
            res.put(meth.name.toString(), value);
        } else {
            // Ignore this element.  May (properly) lead to
            // IncompleteAnnotationException somewhere down the line.
        }
    }
    return res;
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
/**
 * Returns a map from element symbols to their values.
 * Includes all elements, whether explicit or defaulted.
 */
private Map<MethodSymbol, Attribute> getAllValues() {
    Map<MethodSymbol, Attribute> res =
        new LinkedHashMap<MethodSymbol, Attribute>();

    // First find the default values.
    ClassSymbol sym = (ClassSymbol) anno.type.tsym;
    for (Scope.Entry e = sym.members().elems; e != null; e = e.sibling) {
        if (e.sym.kind == Kinds.MTH) {
            MethodSymbol m = (MethodSymbol) e.sym;
            Attribute def = m.getDefaultValue();
            if (def != null)
                res.put(m, def);
        }
    }
    // Next find the explicit values, possibly overriding defaults.
    for (Pair<MethodSymbol, Attribute> p : anno.values)
        res.put(p.fst, p.snd);
    return res;
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
/**
 * Returns a string representation of this annotation.
 * String is of one of the forms:
 *     @com.example.foo(name1=val1, name2=val2)
 *     @com.example.foo(val)
 *     @com.example.foo
 * Omit parens for marker annotations, and omit "value=" when allowed.
 */
public String toString() {
    StringBuilder buf = new StringBuilder();
    buf.append("@");
    buf.append(type);
    int len = values.length();
    if (len > 0) {
        buf.append('(');
        boolean first = true;
        for (Pair<MethodSymbol, Attribute> value : values) {
            if (!first) buf.append(", ");
            first = false;

            Name name = value.fst.name;
            if (len > 1 || name != name.table.names.value) {
                buf.append(name);
                buf.append('=');
            }
            buf.append(value.snd);
        }
        buf.append(')');
    }
    return buf.toString();
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
@Override
public String visitMethodSymbol(MethodSymbol s, Locale locale) {
    if (s.isStaticOrInstanceInit()) {
        return s.owner.name.toString();
    } else {
        String ms = (s.name == s.name.table.names.init)
                ? s.owner.name.toString()
                : s.name.toString();
        if (s.type != null) {
            if (s.type.tag == FORALL) {
                ms = "<" + visitTypes(s.type.getTypeArguments(), locale) + ">" + ms;
            }
            ms += "(" + printMethodArgs(
                    s.type.getParameterTypes(),
                    (s.flags() & VARARGS) != 0,
                    locale) + ")";
        }
        return ms;
    }
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
@Override
public String visitMethodSymbol(MethodSymbol s, Locale locale) {
    String ownerName = visit(s.owner, locale);
    if (s.isStaticOrInstanceInit()) {
        return ownerName;
    } else {
        String ms = (s.name == s.name.table.names.init)
                ? ownerName
                : s.name.toString();
        if (s.type != null) {
            if (s.type.tag == FORALL) {
                ms = "<" + visitTypes(s.type.getTypeArguments(), locale) + ">" + ms;
            }
            ms += "(" + printMethodArgs(
                    s.type.getParameterTypes(),
                    (s.flags() & VARARGS) != 0,
                    locale) + ")";
        }
        return ms;
    }
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
private void addMethodIfExist(DocEnv env, ClassSymbol def, String methodName) {
    Names names = def.name.table.names;

    for (Scope.Entry e = def.members().lookup(names.fromString(methodName)); e.scope != null; e = e.next()) {
        if (e.sym.kind == Kinds.MTH) {
            MethodSymbol md = (MethodSymbol)e.sym;
            if ((md.flags() & Flags.STATIC) == 0) {
                /*
                 * WARNING: not robust if unqualifiedMethodName is overloaded
                 *          method. Signature checking could make more robust.
                 * READOBJECT takes a single parameter, java.io.ObjectInputStream.
                 * WRITEOBJECT takes a single parameter, java.io.ObjectOutputStream.
                 */
                methods.append(env.getMethodDoc(md));
            }
        }
    }
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
@Override
public String toString() {
    String result = "";
    for (Entry<MethodSymbol, Map<JCTree, List<VarSymbol>>> mainEntry: aliveRangeClosingTrees.entrySet()) {
        result += "Method: \n" + mainEntry.getKey().flatName() + "\n";
        int i = 1;
        for (Entry<JCTree, List<VarSymbol>> treeEntry: mainEntry.getValue().entrySet()) {
            result += "    Tree " + i + ": \n" + treeEntry.getKey().toString() + "\n";
            result += "        Variables closed:\n";
            for (VarSymbol var: treeEntry.getValue()) {
                result += "            " + var.toString();
            }
            result += "\n";
            i++;
        }
    }
    return result;
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
private Symbol attributeParamIdentifier(TreePath path, DCParam ptag) {
    Symbol javadocSymbol = getElement(path);
    if (javadocSymbol == null)
        return null;
    ElementKind kind = javadocSymbol.getKind();
    List<? extends Symbol> params = List.nil();
    if (kind == ElementKind.METHOD || kind == ElementKind.CONSTRUCTOR) {
        MethodSymbol ee = (MethodSymbol) javadocSymbol;
        params = ptag.isTypeParameter()
                ? ee.getTypeParameters()
                : ee.getParameters();
    } else if (kind.isClass() || kind.isInterface()) {
        ClassSymbol te = (ClassSymbol) javadocSymbol;
        params = te.getTypeParameters();
    }

    for (Symbol param : params) {
        if (param.getSimpleName() == ptag.getName().getName()) {
            return param;
        }
    }
    return null;
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
/**
 * Return the type containing the method that this method overrides.
 * It may be a <code>TypeElement</code> or a <code>TypeParameterElement</code>.
 * @param method target
 * @return a type
 */
public TypeMirror overriddenType(ExecutableElement method) {
    if (utils.isStatic(method)) {
        return null;
    }
    MethodSymbol sym = (MethodSymbol)method;
    ClassSymbol origin = (ClassSymbol) sym.owner;
    for (com.sun.tools.javac.code.Type t = toolEnv.getTypes().supertype(origin.type);
            t.hasTag(com.sun.tools.javac.code.TypeTag.CLASS);
            t = toolEnv.getTypes().supertype(t)) {
        ClassSymbol c = (ClassSymbol) t.tsym;
        for (com.sun.tools.javac.code.Symbol sym2 : c.members().getSymbolsByName(sym.name)) {
            if (sym.overrides(sym2, origin, toolEnv.getTypes(), true)) {
                return t;
            }
        }
    }
    return null;
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
public boolean overrides(ExecutableElement e1, ExecutableElement e2, TypeElement cls) {
    MethodSymbol rider = (MethodSymbol)e1;
    MethodSymbol ridee = (MethodSymbol)e2;
    ClassSymbol origin = (ClassSymbol)cls;

    return rider.name == ridee.name &&

           // not reflexive as per JLS
           rider != ridee &&

           // we don't care if ridee is static, though that wouldn't
           // compile
           !rider.isStatic() &&

           // Symbol.overrides assumes the following
           ridee.isMemberOf(origin, toolEnv.getTypes()) &&

           // check access, signatures and check return types
           rider.overrides(ridee, origin, toolEnv.getTypes(), true);
}
 

import com.sun.tools.javac.code.Symbol.MethodSymbol; //导入依赖的package包/类
private void addMethodIfExist(ClassSymbol def, String methodName) {
    Names names = def.name.table.names;

    for (Symbol sym : def.members().getSymbolsByName(names.fromString(methodName))) {
        if (sym.kind == MTH) {
            MethodSymbol md = (MethodSymbol) sym;
            if ((md.flags() & Flags.STATIC) == 0) {
                /*
                 * WARNING: not robust if unqualifiedMethodName is overloaded
                 *          method. Signature checking could make more robust.
                 * READOBJECT takes a single parameter, java.io.ObjectInputStream.
                 * WRITEOBJECT takes a single parameter, java.io.ObjectOutputStream.
                 */
                methods.add(md);
            }
        }
    }
}