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1
32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36 import java.util.*;
37
38 public class Method_info extends Feature_info {
39 public static final int ACC_SYNCHRONIZED = 0x0020;
40 public static final int ACC_NATIVE = 0x0100;
41 public static final int ACC_ABSTRACT = 0x0400;
42 public static final int ACC_STRICT = 0x0800;
43
44 public Method_info(Classfile classfile, DataInputStream in) throws IOException {
45 super(classfile, in);
46 }
47
48 public String  getFeatureType() {
49 return "method";
50 }
51
52 public boolean isSynchronized() {
53 return (getAccessFlag() & ACC_SYNCHRONIZED) != 0;
54 }
55
56 public boolean isNative() {
57 return (getAccessFlag() & ACC_NATIVE) != 0;
58 }
59
60 public boolean isAbstract() {
61 return (getAccessFlag() & ACC_ABSTRACT) != 0;
62 }
63
64 public boolean isStrict() {
65 return (getAccessFlag() & ACC_STRICT) != 0;
66 }
67
68 public boolean isConstructor() {
69 return getName().equals("<init>");
70 }
71
72 public boolean isStaticInitializer() {
73 return getName().equals("<clinit>");
74 }
75
76 public Collection getExceptions() {
77 Collection result = Collections.EMPTY_LIST;
78
79 Iterator i = getAttributes().iterator();
80 while (i.hasNext()) {
81 Object obj = i.next();
82 if (obj instanceof Exceptions_attribute) {
83 result = ((Exceptions_attribute) obj).getExceptions();
84 }
85 }
86
87 return result;
88 }
89
90 public String getSignature() {
91 StringBuffer result = new StringBuffer ();
92
93 if (isConstructor()) {
94 result.append(getClassfile().getClassName().substring(getClassfile().getClassName().lastIndexOf(".") + 1));
95 result.append(SignatureHelper.getSignature(getDescriptor()));
96 } else if (isStaticInitializer()) {
97 result.append("static {}");
98 } else {
99 result.append(getName());
100 result.append(SignatureHelper.getSignature(getDescriptor()));
101 }
102
103 return result.toString();
104 }
105
106 public String getReturnType() {
107 return SignatureHelper.getReturnType(getDescriptor());
108 }
109
110 public String getDeclaration() {
111 StringBuffer result = new StringBuffer ();
112
113 if (isPublic()) result.append("public ");
114 if (isProtected()) result.append("protected ");
115 if (isPrivate()) result.append("private ");
116 if (isStatic()) result.append("static ");
117 if (isFinal()) result.append("final ");
118 if (isSynchronized()) result.append("synchronized ");
119 if (isNative()) result.append("native ");
120 if (isAbstract()) result.append("abstract ");
121
122 if (!getName().equals("<init>") && !getName().equals("<clinit>")) {
123 result.append((getReturnType() != null) ? getReturnType() : "void").append(" ");
124 }
125
126 result.append(getSignature());
127
128 if (getExceptions().size() != 0) {
129 result.append(" throws ");
130 Iterator i = getExceptions().iterator();
131 while (i.hasNext()) {
132 result.append(i.next());
133 if (i.hasNext()) {
134 result.append(", ");
135 }
136 }
137 }
138
139 return result.toString();
140 }
141
142 public void accept(Visitor visitor) {
143 visitor.visitMethod_info(this);
144 }
145 }
146 |
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