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1
24
25 package org.aspectj.compiler.crosscuts.ast;
26
27 import org.aspectj.compiler.base.ast.*;
28 import org.aspectj.compiler.base.cst.*;
29
30 import java.util.*;
31
32 import org.aspectj.compiler.base.*;
33
34
42
43 public class PointcutDec extends Dec {
44
47 public void walkInnerInfo(InnerInfoPass w) {
48 int context = w.inMember(true);
49 super.walkInnerInfo(w);
50 w.restoreContext(context);
51 }
52
53 public ASTObject postFixAST(final ASTFixerPass fixer) {
55 return null;
56 }
57
58 public void checkSpec() {
59 if (isStatic()) {
60 getCompiler().warnVersion("1.0beta1", this,
61 "pointcut declarations may not be static");
62 }
63
64 if (resultTypeD != null) {
65 getCompiler().warnVersion("1.0beta1", this,
66 "pointcut declarations don't use returns clause");
67 }
68
69 if (isAbstract()) {
70 if (isPrivate()) {
71 showError("abstract private pointcut can never be implemented");
72 }
73 }
74
75 if (!isAbstract() && !(pcd == null || pcd instanceof EmptyPcd)) {
79 for (int i=0; i<formals.size(); i++) {
80 if (!formals.get(i).isBound) {
81 formals.get(i).showError("not bound in this PCD");
83 }
84 }
85 }
86 }
87
88 public void preScope(ScopeWalker walker) {
90 walker.pushScope(makeBlockScope(walker));
91 }
93 public ASTObject postScope(ScopeWalker walker) { walker.popScope(); return this; }
94
95 public String  toShortString() {
96 return modifiers.toShortString() + " " +
97 getDeclaringType().toShortString() + "." + id +
98 formals.toShortString();
99 }
100
101 public String getKind() { return "pointcut"; }
102
103 public SemanticObject makeCorrespondingSemanticObject() {
104 return new PointcutSO(this);
105 }
106
107 public boolean isAbstract(PlanData planData) {
108 if (pcd == null || pcd instanceof EmptyPcd) return true;
109 return false; }
111
112 public boolean conflictsWith(Dec otherDec) {
113 if (!getId().equals(otherDec.getId())) return false;
115 if (!this.isAccessible(otherDec) && !otherDec.isAccessible(this)) return false;
116
117 return true;
118 }
119
120
121 void showOverrideError(Dec other, String message) {
122 String overrideKind = "override";
123 showError(toShortString() + " cannot " + overrideKind + " " +
124 other.toShortString() + "; " + message);
125 }
126
127 public boolean checkOverride(Type inType, Dec otherDec) {
128 PointcutDec other = (PointcutDec)otherDec;
129 if (other.getModifiers().isFinal()) {
130 showOverrideError(other, "overridden pointcut is final");
131 } else if (getModifiers().isWeakerThan(other.getModifiers())) {
132 showOverrideError(other,
133 "attempting to assign weaker access privileges; was " +
134 other.getModifiers().toShortString());
135 } else if (!getFormals().matches(other.getFormals())) {
136 showOverrideError(other,
137 "signatures must match exactly; expected "
138 + other.getFormals().toShortString());
139 }
140 return false;
141 }
142
143
160
161 protected Modifiers modifiers;
163 public Modifiers getModifiers() { return modifiers; }
164 public void setModifiers(Modifiers _modifiers) {
165 if (_modifiers != null) _modifiers.setParent(this);
166 modifiers = _modifiers;
167 }
168
169 protected String id;
170 public String getId() { return id; }
171 public void setId(String _id) { id = _id; }
172
173 protected TypeD resultTypeD;
174 public TypeD getResultTypeD() { return resultTypeD; }
175 public void setResultTypeD(TypeD _resultTypeD) {
176 if (_resultTypeD != null) _resultTypeD.setParent(this);
177 resultTypeD = _resultTypeD;
178 }
179
180 protected Formals formals;
181 public Formals getFormals() { return formals; }
182 public void setFormals(Formals _formals) {
183 if (_formals != null) _formals.setParent(this);
184 formals = _formals;
185 }
186
187 protected Pcd pcd;
188 public Pcd getPcd() { return pcd; }
189 public void setPcd(Pcd _pcd) {
190 if (_pcd != null) _pcd.setParent(this);
191 pcd = _pcd;
192 }
193
194 public PointcutDec(SourceLocation location, Modifiers _modifiers, String _id, TypeD _resultTypeD, Formals _formals, Pcd _pcd) {
195 super(location);
196 setModifiers(_modifiers);
197 setId(_id);
198 setResultTypeD(_resultTypeD);
199 setFormals(_formals);
200 setPcd(_pcd);
201 }
202 protected PointcutDec(SourceLocation source) {
203 super(source);
204 }
205
206 public ASTObject copyWalk(CopyWalker walker) {
207 PointcutDec ret = new PointcutDec(getSourceLocation());
208 ret.preCopy(walker, this);
209 if (modifiers != null) ret.setModifiers( (Modifiers)walker.process(modifiers) );
210 ret.id = id;
211 if (resultTypeD != null) ret.setResultTypeD( (TypeD)walker.process(resultTypeD) );
212 if (formals != null) ret.setFormals( (Formals)walker.process(formals) );
213 if (pcd != null) ret.setPcd( (Pcd)walker.process(pcd) );
214 return ret;
215 }
216
217 public ASTObject getChildAt(int childIndex) {
218 switch(childIndex) {
219 case 0: return modifiers;
220 case 1: return resultTypeD;
221 case 2: return formals;
222 case 3: return pcd;
223 default: return super.getChildAt(childIndex);
224 }
225 }
226 public String getChildNameAt(int childIndex) {
227 switch(childIndex) {
228 case 0: return "modifiers";
229 case 1: return "resultTypeD";
230 case 2: return "formals";
231 case 3: return "pcd";
232 default: return super.getChildNameAt(childIndex);
233 }
234 }
235 public void setChildAt(int childIndex, ASTObject child) {
236 switch(childIndex) {
237 case 0: setModifiers((Modifiers)child); return;
238 case 1: setResultTypeD((TypeD)child); return;
239 case 2: setFormals((Formals)child); return;
240 case 3: setPcd((Pcd)child); return;
241 default: super.setChildAt(childIndex, child); return;
242 }
243 }
244 public int getChildCount() {
245 return 4;
246 }
247
248 public String getDefaultDisplayName() {
249 return "PointcutDec(id: "+id+")";
250 }
251
252 }
254 |
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