Package org.jboss.byteman.rule.type

Examples of org.jboss.byteman.rule.type.TypeGroup

97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
     *
     */
    public Type typeCheck(Type expected) throws TypeException {
        // check the exception type is defined and then look for a relevant constructor

        TypeGroup typeGroup = getTypeGroup();

        type = Type.dereference(typeGroup.create(typeName));

        if (type == null || type.isUndefined()) {
            throw new TypeException("ThrowExpression.typeCheck : unknown exception type " + typeName + getPos());
        }

        if (!Throwable.class.isAssignableFrom(type.getTargetClass())) {
            throw new TypeException("ThrowExpression.typeCheck : not an exception type " + typeName  + getPos());
        }

        Class clazz = type.getTargetClass();
        // if we can find a unique method then we can use it to type the parameters
        // otherwise we do it the hard way
        int arity = arguments.size();
        Constructor[] constructors = clazz.getConstructors();
        List<Constructor> candidates = new ArrayList<Constructor>();
        boolean duplicates = false;

        for (Constructor constructor : constructors) {
            if (constructor.getParameterTypes().length == arity) {
                candidates.add(constructor);
            }
        }

        argumentTypes = new ArrayList<Type>();

        // check each argument in turn -- if all candidates have the same argument type then
        // use that as the type to check against
        for (int i = 0; i < arguments.size() ; i++) {
            if (candidates.isEmpty()) {
                throw new TypeException("ThrowExpression.typeCheck : invalid constructor for target class " + typeName + getPos());
            }

            // TODO get and prune operations do not allow for coercion but type check does!
            // e.g. the parameter type may be int and the arg type float
            // or the parameter type may be String and the arg type class Foo
            // reimplement this using type inter-assignability to do the pruning

            Class candidateClass = getCandidateArgClass(candidates, i);
            Type candidateType;
            if (candidateClass != null) {
                candidateType = typeGroup.ensureType(candidateClass);
            } else {
                candidateType = Type.UNDEFINED;
            }
            Type argType = arguments.get(i).typeCheck(candidateType);
            argumentTypes.add(argType);
            if (candidateType == Type.UNDEFINED) {
                // we had several constructors to choose from
                candidates = pruneCandidates(candidates, i, argType.getTargetClass());
            }
        }

        if (candidates.isEmpty()) {
            throw new TypeException("ThrowExpression.typeCheck : invalid constructor for target class " + typeName + getPos());
        }

        if (candidates.size() > 1) {
            throw new TypeException("ThrowExpression.typeCheck : ambiguous constructor signature for target class " + typeName + getPos());
        }

        constructor = candidates.get(0);

        // make sure we know the formal parameter types and have included them in the typegroup

        paramTypes = new ArrayList<Type>();
        Class<?>[] paramClasses = constructor.getParameterTypes();

        for (int i = 0; i < arguments.size() ; i++) {
            paramTypes.add(typeGroup.ensureType(paramClasses[i]));
        }

        checkThrownTypeIsValid();

        return type;
View Full Code Here
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
     * @throws TypeException if it is otherwise not legitimate to throw a value of the computed type from the trigger
     * method
     */
    private void checkThrownTypeIsValid() throws TypeWarningException, TypeException
    {
        TypeGroup typeGroup = getTypeGroup();

        // if the thrown type can be assigned to RuntimeException then we are out of here

        if (RuntimeException.class.isAssignableFrom(type.getTargetClass())) {
            return;
        }

        // see if the trigering method declares this exception type as a thrown exception

        Iterator<Type> iterator = typeGroup.getExceptionTypes().iterator();
        while (iterator.hasNext()) {
            Type exceptionType = iterator.next();
            if (Type.dereference(exceptionType).isAssignableFrom(type)) {
                // ok we found a suitable declaration for the exception
                return;
View Full Code Here
506
507
508
509
510
511
512
513
514
515
516
    {
        List<String> paramTypes = Type.parseMethodDescriptor(candidateDesc, false);
        int paramCount = paramTypes.size();
        int errorCount = 0;

        TypeGroup typegroup = rule.getTypeGroup();

        Bindings bindings = rule.getBindings();
        Iterator<Binding> iterator = bindings.iterator();

        while (iterator.hasNext()) {
View Full Code Here
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
    public Type typeCheck(Type expected) throws TypeException {
        // if we have no recipient then we use the rule's helper as a target via a binding
        // to $-1. this means  we can type check the call against methods of class Helper
        // without having to do any special case processing.

        TypeGroup typeGroup =  getTypeGroup();

        if (recipient == null && pathList != null) {
            // treat the pathlist as a typename or a static field dereference possibly combined with
            // further field dereferences

            // factor off a typename from the path
            Type rootType = typeGroup.match(pathList);
            if (rootType == null) {
                throw new TypeException("FieldExpression.typeCheck : invalid path " + getPath(pathList.length) + " to static method " + name + getPos());
            }

            // find out how many of the path elements are included in the type name

            String rootTypeName = rootType.getName();

            int idx = getPathCount(rootTypeName);

            if (idx < pathList.length) {
                // create a static field reference using the type name and the first field name and wrap it with
                // enough field references to use up all the path

                String fieldName = pathList[idx++];
                Expression recipient = new StaticExpression(rule, Type.UNDEFINED, token, fieldName, rootTypeName);
                while (idx < pathList.length) {
                    recipient = new FieldExpression(rule, Type.UNDEFINED, token, pathList[idx++], recipient, null);
                }
                this.recipient = recipient;
            } else {
                // ok, this method reference is actually a static method call -- record the root type for later
                this.recipient = null;
                this.rootType = rootType;
            }
            // get rid of the path list now
            this.pathList = null;
            // not strictly necessary?
            if (this.recipient != null) {
                this.recipient.bind();
            }
        }

        // if we don't have a recipient and we didn't find a static class for the method then this is
        // a builtin

        boolean isBuiltIn = false;

        if (recipient == null) {
            if (rootType == null) {
                isBuiltIn = true;
                Type ruleType = typeGroup.create(rule.getHelperClass().getCanonicalName());
                recipient = new DollarExpression(rule, ruleType, token, DollarExpression.HELPER_IDX);
                recipient.bind();

                rootType = recipient.typeCheck(Type.UNDEFINED);
            }
        } else {
            rootType = recipient.typeCheck(Type.UNDEFINED);
        }

        // see if we can find a method for this call
       
        findMethod(isBuiltIn);

        // now go back and identify the parameter types

        this. paramTypes = new ArrayList<Type>();
        Class<?>[] paramClasses = method.getParameterTypes();

        for (int i = 0; i < arguments.size(); i++) {
            Class<?> paramClass = paramClasses[i];
            paramTypes.add(typeGroup.ensureType(paramClass));
        }

        type = typeGroup.ensureType(method.getReturnType());

        if (Type.dereference(expected).isDefined() && !expected.isAssignableFrom(type)) {
            throw new TypeException("MethodExpression.typeCheck : invalid expected type " + expected.getName() + getPos());
        }
View Full Code Here
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
    private void findMethod(boolean publicOnly) throws TypeException
    {
        // check all declared methods of each class in the class hierarchy using the one with
        // the most specific recipient type if we can find it

        TypeGroup typeGroup =  getTypeGroup();
        Class<?> clazz = rootType.getTargetClass();
        boolean isStatic = (recipient == null);

        int arity = arguments.size();
        while (clazz != null) {
            List<Method> candidates = new ArrayList<Method>();
            Class<?> superClazz = clazz.getSuperclass();
            try {
                Method[] methods;
                if (publicOnly) {
                    methods = clazz.getMethods();
                } else {
                    methods = clazz.getDeclaredMethods();
                }
                List<Type> argumentTypes = new ArrayList<Type>();

                for (Method method : methods) {
                    int modifiers = method.getModifiers();
                    // ensure we only look at static or non static methods as appropriate
                    if (Modifier.isStatic(modifiers) == isStatic) {
                        if (method.getName().equals(name) &&
                                method.getParameterTypes().length == arity) {
                            candidates.add(method);
                        }
                    }
                }
                // check each argument in turn -- if all candidates have the same argument type then
                // use that as the type to check against
                for (int i = 0; i < arguments.size() ; i++) {
                    if (candidates.isEmpty()) {
                        // no more possible matches
                        break;
                    }
                    Class candidateClass = getCandidateArgClass(candidates, i);
                    Type candidateType;
                    if (candidateClass != null) {
                        candidateType = typeGroup.ensureType(candidateClass);
                    } else {
                        candidateType = Type.UNDEFINED;
                    }
                    Type argType = arguments.get(i).typeCheck(candidateType);
                    argumentTypes.add(argType);
View Full Code Here
102
103
104
105
106
107
108
109
110
111
112
113
    }

    public Type typeCheck(Type expected) throws TypeException {
        if (owner == null && pathList != null) {
            // factor off a typename from the path
            TypeGroup typeGroup = getTypeGroup();
            Type rootType = typeGroup.match(pathList);
            if (rootType == null) {
                throw new TypeException("FieldExpression.typeCheck : invalid path " + getPath(pathList.length) + " to static field " + fieldName + getPos());
            }

            // find out how many of the path elements are included in the type name
View Full Code Here
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
     *
     */
    public Type typeCheck(Type expected) throws TypeException {
        // check the exception type is defined and then look for a relevant constructor

        TypeGroup typeGroup = getTypeGroup();

        type = Type.dereference(typeGroup.create(typeName));

        if (type == null || type.isUndefined()) {
            throw new TypeException("ThrowExpression.typeCheck : unknown exception type " + typeName + getPos());
        }

        if (!Throwable.class.isAssignableFrom(type.getTargetClass())) {
            throw new TypeException("ThrowExpression.typeCheck : not an exception type " + typeName  + getPos());
        }

        Class clazz = type.getTargetClass();
        // if we can find a unique method then we can use it to type the parameters
        // otherwise we do it the hard way
        int arity = arguments.size();
        Constructor[] constructors = clazz.getConstructors();
        List<Constructor> candidates = new ArrayList<Constructor>();
        boolean duplicates = false;

        for (Constructor constructor : constructors) {
            if (constructor.getParameterTypes().length == arity) {
                candidates.add(constructor);
            }
        }

        argumentTypes = new ArrayList<Type>();

        // check each argument in turn -- if all candidates have the same argument type then
        // use that as the type to check against
        for (int i = 0; i < arguments.size() ; i++) {
            if (candidates.isEmpty()) {
                throw new TypeException("ThrowExpression.typeCheck : invalid constructor for target class " + typeName + getPos());
            }

            // TODO get and prune operations do not allow for coercion but type check does!
            // e.g. the parameter type may be int and the arg type float
            // or the parameter type may be String and the arg type class Foo
            // reimplement this using type inter-assignability to do the pruning

            Class candidateClass = getCandidateArgClass(candidates, i);
            Type candidateType;
            if (candidateClass != null) {
                candidateType = typeGroup.ensureType(candidateClass);
            } else {
                candidateType = Type.UNDEFINED;
            }
            Type argType = arguments.get(i).typeCheck(candidateType);
            argumentTypes.add(argType);
            if (candidateType == Type.UNDEFINED) {
                // we had several constructors to choose from
                candidates = pruneCandidates(candidates, i, argType.getTargetClass());
            }
        }

        if (candidates.isEmpty()) {
            throw new TypeException("ThrowExpression.typeCheck : invalid constructor for target class " + typeName + getPos());
        }

        if (candidates.size() > 1) {
            throw new TypeException("ThrowExpression.typeCheck : ambiguous constructor signature for target class " + typeName + getPos());
        }

        constructor = candidates.get(0);

        // make sure we know the formal parameter types and have included them in the typegroup

        paramTypes = new ArrayList<Type>();
        Class<?>[] paramClasses = constructor.getParameterTypes();

        for (int i = 0; i < arguments.size() ; i++) {
            paramTypes.add(typeGroup.ensureType(paramClasses[i]));
        }

        // expected type should always be void since throw can only occur as a top level action
        // however, we need to be sure that the trigering method throws this exception type or
        // else that it is a subtype of runtime exception

        if (RuntimeException.class.isAssignableFrom(type.getTargetClass())) {
            return type;
        } else {
            Iterator<Type> iterator = typeGroup.getExceptionTypes().iterator();
            while (iterator.hasNext()) {
                Type exceptionType = iterator.next();
                if (Type.dereference(exceptionType).isAssignableFrom(type)) {
                    // ok we foudn a suitable declaration for the exception
                    return type;
View Full Code Here
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
        bind();
    }

    public Type typeCheck(Type expected) throws TypeException {
        // look for a class whose name matches some initial segment of pathList
        TypeGroup typeGroup = getTypeGroup();
        ownerType = Type.dereference(typeGroup.create(ownerTypeName));
        if (ownerType.isUndefined()) {
            throw new TypeException("StaticExpression.typeCheck : invalid path " + ownerTypeName + " to static field " + fieldName + getPos());
        }

        Class clazz = ownerType.getTargetClass();
        try {
            field  = lookupField(clazz);
        } catch (NoSuchFieldException e) {
                // oops
            throw new TypeException("StaticExpression.typeCheck : invalid field name " + fieldName + getPos());
        }

        if ((field.getModifiers() & Modifier.STATIC)== 0) {
            // oops
            throw new TypeException("StaticExpression.typeCheck : field is not static " + fieldName + getPos());
        }

        clazz = field.getType();
        type = typeGroup.ensureType(clazz);

        if (Type.dereference(expected).isDefined() && !expected.isAssignableFrom(type)) {
            throw new TypeException("StaticExpression.typeCheck : invalid expected return type " + expected.getName() + getPos());
        }
        return type;
View Full Code Here
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
     *
     */
    public Type typeCheck(Type expected) throws TypeException {
        // check the new instance type is defined and then look for a relevant constructor

        TypeGroup typeGroup = getTypeGroup();

        type = Type.dereference(typeGroup.create(typeName));

        if (type == null || type.isUndefined()) {
            throw new TypeException("NewExpression.typeCheck : unknown type " + typeName + getPos());
        }

        if (type.isObject() && arrayDimCount == 0) {
            // we need to look for a suitable constructor
            Class clazz = type.getTargetClass();
            // if we can find a unique method then we can use it to type the parameters
            // otherwise we do it the hard way
            int arity = arguments.size();
            Constructor[] constructors = clazz.getConstructors();
            List<Constructor> candidates = new ArrayList<Constructor>();
            boolean duplicates = false;

            for (Constructor constructor : constructors) {
                if (constructor.getParameterTypes().length == arity) {
                    candidates.add(constructor);
                }
            }

            argumentTypes = new ArrayList<Type>();

            // check each argument in turn -- if all candidates have the same argument type then
            // use that as the type to check against
            for (int i = 0; i < arguments.size() ; i++) {
                if (candidates.isEmpty()) {
                    throw new TypeException("NewExpression.typeCheck : invalid constructor for target class " + typeName + getPos());
                }

                // TODO get and prune operations do not allow for coercion but type check does!
                // e.g. the parameter type may be int and the arg type float
                // or the parameter type may be String and the arg type class Foo
                // reimplement this using type inter-assignability to do the pruning

                Class candidateClass = getCandidateArgClass(candidates, i);
                Type candidateType;
                if (candidateClass != null) {
                    candidateType = typeGroup.ensureType(candidateClass);
                } else {
                    candidateType = Type.UNDEFINED;
                }
                Type argType = arguments.get(i).typeCheck(candidateType);
                argumentTypes.add(argType);
                if (candidateType == Type.UNDEFINED) {
                    // we had several constructors to choose from
                    candidates = pruneCandidates(candidates, i, argType.getTargetClass());
                }
            }

            if (candidates.isEmpty()) {
                throw new TypeException("NewExpression.typeCheck : invalid constructor for target class " + typeName + getPos());
            }

            if (candidates.size() > 1) {
                throw new TypeException("NewExpression.typeCheck : ambiguous constructor signature for target class " + typeName + getPos());
            }

            constructor = candidates.get(0);

            // make sure we know the formal parameter types and have included them in the typegroup

            paramTypes = new ArrayList<Type>();
            Class<?>[] paramClasses = constructor.getParameterTypes();

            for (int i = 0; i < arguments.size() ; i++) {
                paramTypes.add(typeGroup.ensureType(paramClasses[i]));
            }
        } else if (arrayDimCount == 0) {
            // if we have a primitive type then have to have some array dimensions
            throw new TypeException("NewExpression.typeCheck : invalid type for new operation " + getPos());
        }
        // if this is a new array operation we must have at least one defined dimension and we cannot have
        // more dimensions than we can fit into a byte

        if (arrayDimCount > 0 && arrayDimDefinedCount == 0) {
            throw new TypeException("NewExpression.typeCheck : array dimension missing " + getPos());
        }

        if (arrayDimCount > Byte.MAX_VALUE) {
            throw new TypeException("NewExpression.typeCheck : too many array dimensions " + getPos());
        }
        // if we have any array dimension sizings then ensure they all type check as integer expressions

        for (int i = 0; i < arrayDimCount ; i++) {
            if (i < arrayDimDefinedCount) {
                Expression expr = arrayDims.get(i);
                expr.typeCheck(Type.I);
            }
            // replace the current type with the corresponding array type
            type = typeGroup.createArray(type);
        }

        // if the expected type is defined then ensure we can assign this type to it

        if (Type.dereference(expected).isDefined() && !expected.isAssignableFrom(type)) {
View Full Code Here
168
169
170
171
172
173
174
175
176
177
178
        this.ruleScript = ruleScript;
        this.helperClass = null;
        this.loader = loader;

        typeGroup = new TypeGroup(loader);
        bindings = new Bindings();
        checked = false;
        triggerClass = null;
        triggerMethod = null;
        triggerDescriptor = null;
View Full Code Here
TOP

Related Classes of org.jboss.byteman.rule.type.TypeGroup

  • org.jboss.byteman.check.RuleCheck
  • org.jboss.byteman.rule.expression.ClassLiteralExpression
  • org.jboss.byteman.rule.expression.FieldExpression
  • org.jboss.byteman.rule.expression.MethodExpression
  • org.jboss.byteman.rule.expression.NewExpression
  • org.jboss.byteman.rule.expression.StaticExpression
  • org.jboss.byteman.rule.expression.ThrowExpression
  • org.jboss.byteman.rule.Rule
  • org.jboss.byteman.test.TestScript
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.