Example usage for org.objectweb.asm MethodVisitor visitMethodInsn

Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitMethodInsn.

Prototype

@Deprecated
public void visitMethodInsn(final int opcode, final String owner, final String name, final String descriptor) 

Source Link

Document

Visits a method instruction.

Usage

From source file:com.google.devtools.build.wireless.testing.java.injector.WrapperClassAdapterTest.java

License:Apache License

/**
 * Tests /*from  ww  w  . ja va2 s.  co  m*/
 * {@link WrapperClassAdapter#visitMethod(int, String, String, String, String[])}
 * .
 * 
 * <p>This tests verifies that constructors of wrapped types are wrapped 
 * with invocations to the related constructor of the wrapper.
 */
public void testWrappingConstructor() {
    MethodVisitor mv = wrapper.visitMethod(Opcodes.ACC_PUBLIC, "Method", "()V", null, null);
    assertTrue("Wrong MethodVisitor.", mv instanceof WrapperMethodAdapter);

    for (String key : classMap.keySet()) {
        mv.visitMethodInsn(Opcodes.ACC_PUBLIC, key, "<init>", "()V");
        assertEquals("The given classname should have been wrapped", classMap.get(key),
                spyVisitor.ownerClassName);
    }

    mv.visitMethodInsn(Opcodes.ACC_PUBLIC, fakeKey, "<init>", "()V");
    assertEquals("The given classname should NOT have been wrapped", fakeKey, spyVisitor.ownerClassName);
}

---

From source file:com.google.gag.agent.ThisHadBetterGenerator.java

License:Apache License

/**
 * The given Property needs to be either {@link Property#THE_BLUE_PILL} or
 * {@link Property#THE_RED_PILL}.//from www  .ja v  a2  s. c  o m
 */
private static void visitPill(MethodVisitor mv, boolean be, Property property, LocalVarInfo param, Label okay) {

    if (param.getType().getSort() != Type.OBJECT) {
        throw new AnnotationStateError("Unsupported type: " + param.getType());
    }

    // TODO: Also handle if parameter is null.

    Label notOkay = new Label();

    // See if the param type matches a Pill type
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitMethodInsn(INVOKEVIRTUAL, param.getType().getInternalName(), "getClass", "()Ljava/lang/Class;");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;");
    mv.visitLdcInsn("Pill|ThePill|.*[\\.$]Pill|.*[\\.$]ThePill");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "matches", "(Ljava/lang/String;)Z");

    if (be) {
        // If the param type does not match a Pill type, that's not okay, go to exception.
        mv.visitJumpInsn(FALSE, notOkay);
    } else {
        // If the param type does not match a Pill type, then that's okay, skip exception.
        mv.visitJumpInsn(FALSE, okay);
    }

    // At this point, the param type matches a Pill type.
    // So check if the param type is an enum type.
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitTypeInsn(INSTANCEOF, "java/lang/Enum");

    if (be) {
        // If the param type is not an enum, that's not okay, go to exception.
        mv.visitJumpInsn(FALSE, notOkay);
    } else {
        // If the param type is not an enum, that's okay, skip exception.
        mv.visitJumpInsn(FALSE, okay);
    }

    // Check that the Pill type has the property specified in the annotation.
    // First try to match on "BLUE" (or "RED").
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitTypeInsn(CHECKCAST, "java/lang/Enum");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Enum", "name", "()Ljava/lang/String;");
    mv.visitLdcInsn(property == Property.THE_BLUE_PILL ? "BLUE" : "RED");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z");
    mv.visitJumpInsn(TRUE, be ? okay : notOkay);

    // Then try to see if the value ends with "BLUE_PILL" (or "RED_PILL").
    mv.visitVarInsn(ALOAD, param.getIndex());
    mv.visitTypeInsn(CHECKCAST, "java/lang/Enum");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Enum", "name", "()Ljava/lang/String;");
    mv.visitLdcInsn(property == Property.THE_BLUE_PILL ? "BLUE_PILL" : "RED_PILL");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "endsWith", "(Ljava/lang/String;)Z");
    mv.visitJumpInsn(be ? TRUE : FALSE, okay);

    mv.visitLabel(notOkay);
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementConstructor() {
    final String consName = "<init>";
    final String consDesc = Type.getMethodDescriptor(Type.VOID_TYPE,
            new Type[] { Type.getType(JdbcSchema.class) });
    final MethodVisitor mv;
    mv = cw.visitMethod(ACC_PUBLIC, consName, consDesc, null, null);
    mv.visitCode();/*from w  ww .j av  a 2 s .c  o  m*/
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKESPECIAL, superTypeName, consName, consDesc);
    mv.visitInsn(RETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void throwUnsupported(final MethodVisitor mv, final String message) {
    final Type eType = Type.getType(UnsupportedOperationException.class);
    mv.visitTypeInsn(NEW, eType.getInternalName());
    mv.visitInsn(DUP);/*from   w  ww  .j  a v  a  2s .  c om*/
    mv.visitLdcInsn(message);
    mv.visitMethodInsn(INVOKESPECIAL, eType.getInternalName(), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class) }));
    mv.visitInsn(ATHROW);
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementGetOne() {
    final KeyModel pk = model.getPrimaryKey();

    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "get",
            Type.getMethodDescriptor(Type.getType(Object.class), new Type[] { Type.getType(Key.class) }), null,
            new String[] { Type.getType(OrmException.class).getInternalName() });
    mv.visitCode();/*from  w w  w  .  j  a  v  a  2 s .com*/
    if (pk != null && pk.getField().isNested()) {
        final Type keyType = CodeGenSupport.toType(pk.getField());
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, keyType.getInternalName());
        mv.visitMethodInsn(INVOKEVIRTUAL, implTypeName, pk.getName(),
                Type.getMethodDescriptor(entityType, new Type[] { keyType }));
        mv.visitInsn(ARETURN);
    } else {
        throwUnsupported(mv, model.getMethodName() + " does not support get(Key)");
    }
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementNewEntityInstance() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "newEntityInstance",
            Type.getMethodDescriptor(Type.getType(Object.class), new Type[] {}), null, null);
    mv.visitCode();/*from  w w w . j ava  2s  . com*/
    mv.visitTypeInsn(NEW, entityType.getInternalName());
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, entityType.getInternalName(), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementBindOneFetch() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "bindOneFetch",
            Type.getMethodDescriptor(Type.VOID_TYPE,
                    new Type[] { Type.getType(ResultSet.class), Type.getType(Object.class) }),
            null, new String[] { Type.getType(SQLException.class).getInternalName() });
    mv.visitCode();/*  w ww .j  av a  2s  .  c om*/

    mv.visitVarInsn(ALOAD, 2);
    mv.visitTypeInsn(CHECKCAST, entityType.getInternalName());
    mv.visitVarInsn(ASTORE, 2);

    final CodeGenSupport cgs = new CodeGenSupport(mv);
    cgs.setEntityType(entityType);

    if (model.getPrimaryKey() != null && model.getPrimaryKey().getField().isNested()) {
        final ColumnModel pkf = model.getPrimaryKey().getField();
        final Type vType = CodeGenSupport.toType(pkf);
        final int oldIdx = cgs.getColumnIndex();
        cgs.setFieldReference(pkf);
        cgs.fieldSetBegin();
        mv.visitTypeInsn(NEW, vType.getInternalName());
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, vType.getInternalName(), "<init>",
                Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
        cgs.fieldSetEnd();
        cgs.resetColumnIndex(oldIdx);
    }

    final List<ColumnModel> cols = new ArrayList<ColumnModel>();
    cols.addAll(model.getDependentFields());
    cols.addAll(model.getRowVersionFields());
    cols.addAll(model.getPrimaryKeyColumns());
    for (final ColumnModel field : cols) {
        doFetchOne(mv, cgs, field, -1);
    }

    mv.visitInsn(RETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void doFetchOne(final MethodVisitor mv, final CodeGenSupport cgs, final ColumnModel field,
        final int reportLiveInto) {
    if (field.isNested()) {
        int oldIdx = cgs.getColumnIndex();
        final Type vType = CodeGenSupport.toType(field);
        final int livecnt;

        if (field.isNotNull()) {
            livecnt = -1;//from  w  w w .java 2s  .  co  m
        } else {
            livecnt = cgs.newLocal();
            cgs.push(0);
            mv.visitVarInsn(ISTORE, livecnt);
        }

        cgs.setFieldReference(field);
        cgs.fieldSetBegin();
        mv.visitTypeInsn(NEW, vType.getInternalName());
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, vType.getInternalName(), "<init>",
                Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
        cgs.fieldSetEnd();

        cgs.resetColumnIndex(oldIdx);
        for (final ColumnModel c : field.getNestedColumns()) {
            doFetchOne(mv, cgs, c, livecnt);
        }

        if (livecnt >= 0) {
            oldIdx = cgs.getColumnIndex();

            final Label islive = new Label();
            mv.visitVarInsn(ILOAD, livecnt);
            mv.visitJumpInsn(IFNE, islive);
            cgs.setFieldReference(field);
            cgs.fieldSetBegin();
            mv.visitInsn(ACONST_NULL);
            cgs.fieldSetEnd();

            if (reportLiveInto >= 0) {
                final Label end = new Label();
                mv.visitJumpInsn(GOTO, end);
                mv.visitLabel(islive);
                mv.visitIincInsn(reportLiveInto, 1);
                mv.visitLabel(end);
            } else {
                mv.visitLabel(islive);
            }

            cgs.resetColumnIndex(oldIdx);
            cgs.freeLocal(livecnt);
        }

    } else {
        final int dupTo;
        if (reportLiveInto >= 0 && CodeGenSupport.toType(field).getSort() == Type.OBJECT) {
            dupTo = cgs.newLocal();
        } else {
            dupTo = -1;
        }

        cgs.setFieldReference(field);
        cgs.setDupOnFieldSetEnd(dupTo);
        dialect.getSqlTypeInfo(field).generateResultSetGet(cgs);

        if (reportLiveInto >= 0) {
            final Label wasnull = new Label();
            if (dupTo >= 0) {
                mv.visitVarInsn(ALOAD, dupTo);
                mv.visitJumpInsn(IFNULL, wasnull);
                cgs.freeLocal(dupTo);
            } else {
                cgs.pushSqlHandle();
                mv.visitMethodInsn(INVOKEINTERFACE, Type.getType(ResultSet.class).getInternalName(), "wasNull",
                        Type.getMethodDescriptor(Type.BOOLEAN_TYPE, new Type[] {}));
                mv.visitJumpInsn(IFNE, wasnull);
            }
            mv.visitIincInsn(reportLiveInto, 1);
            mv.visitLabel(wasnull);
        }
    }
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementKeyQuery(final KeyModel info) {
    final Type keyType = CodeGenSupport.toType(info.getField());
    final StringBuilder query = new StringBuilder();
    query.append(model.getSelectSql(dialect, REL_ALIAS));
    query.append(" WHERE ");
    int nth = 1;//  w w w . ja v a 2  s. c  o m
    for (final Iterator<ColumnModel> i = info.getAllLeafColumns().iterator(); i.hasNext();) {
        final ColumnModel c = i.next();
        query.append(REL_ALIAS);
        query.append('.');
        query.append(c.getColumnName());
        query.append('=');
        query.append(dialect.getParameterPlaceHolder(nth++));
        if (i.hasNext()) {
            query.append(" AND ");
        }
    }

    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, info.getName(),
            Type.getMethodDescriptor(entityType, new Type[] { keyType }), null,
            new String[] { Type.getType(OrmException.class).getInternalName() });
    mv.visitCode();

    final int keyvar = 1, psvar = keyvar + keyType.getSize();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitLdcInsn(query.toString());
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "prepareStatement", Type.getMethodDescriptor(
            Type.getType(PreparedStatement.class), new Type[] { Type.getType(String.class) }));
    mv.visitVarInsn(ASTORE, psvar);

    final CodeGenSupport cgs = new CodeGenSupport(mv) {
        @Override
        public void pushSqlHandle() {
            mv.visitVarInsn(ALOAD, psvar);
        }

        @Override
        public void pushFieldValue() {
            appendGetField(getFieldReference());
        }

        @Override
        protected void appendGetField(final ColumnModel c) {
            if (c.getParent() == null) {
                loadVar(keyType, keyvar);
            } else {
                super.appendGetField(c);
            }
        }
    };
    for (final ColumnModel c : info.getAllLeafColumns()) {
        cgs.setFieldReference(c);
        dialect.getSqlTypeInfo(c).generatePreparedStatementSet(cgs);
    }

    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, psvar);
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "queryOne", Type.getMethodDescriptor(
            Type.getType(Object.class), new Type[] { Type.getType(PreparedStatement.class) }));
    mv.visitTypeInsn(CHECKCAST, entityType.getInternalName());
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void overrideGetMany() {
    final KeyModel pk = model.getPrimaryKey();
    final StringBuilder query = new StringBuilder();
    query.append(model.getSelectSql(dialect, REL_ALIAS));
    query.append(" WHERE ");
    final ColumnModel pkcol = pk.getAllLeafColumns().iterator().next();
    query.append(REL_ALIAS);// ww  w  . jav  a  2  s. c  om
    query.append('.');
    query.append(pkcol.getColumnName());
    query.append(" IN");

    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "getBySqlIn",
            Type.getMethodDescriptor(Type.getType(com.google.gwtorm.server.ResultSet.class),
                    new Type[] { Type.getType(Collection.class) }),
            null, new String[] { Type.getType(OrmException.class).getInternalName() });
    mv.visitCode();

    final int keyset = 1;
    final int psvar = 2;
    final int itrvar = 3;
    final int colvar = 4;
    final int keyvar = 5;

    mv.visitVarInsn(ALOAD, 0);
    mv.visitLdcInsn(query.toString());
    mv.visitVarInsn(ALOAD, keyset);
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "prepareBySqlIn",
            Type.getMethodDescriptor(Type.getType(PreparedStatement.class),
                    new Type[] { Type.getType(String.class), Type.getType(Collection.class) }));
    mv.visitVarInsn(ASTORE, psvar);

    mv.visitVarInsn(ALOAD, keyset);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Collection.class), "iterator",
            Type.getMethodDescriptor(Type.getType(Iterator.class), new Type[] {}));
    mv.visitVarInsn(ASTORE, itrvar);

    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ISTORE, colvar);

    final Label endbind = new Label();
    final Label again = new Label();
    mv.visitLabel(again);
    mv.visitVarInsn(ALOAD, itrvar);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Iterator.class), "hasNext",
            Type.getMethodDescriptor(Type.BOOLEAN_TYPE, new Type[] {}));
    mv.visitJumpInsn(IFEQ, endbind);

    mv.visitVarInsn(ALOAD, itrvar);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Iterator.class), "next",
            Type.getMethodDescriptor(Type.getType(Object.class), new Type[] {}));
    mv.visitTypeInsn(CHECKCAST, CodeGenSupport.toType(pk.getField()).getInternalName());
    mv.visitVarInsn(ASTORE, keyvar);

    final CodeGenSupport cgs = new CodeGenSupport(mv) {
        @Override
        public void pushSqlHandle() {
            mv.visitVarInsn(ALOAD, psvar);
        }

        @Override
        public void pushFieldValue() {
            appendGetField(getFieldReference());
        }

        @Override
        public void pushColumnIndex() {
            mv.visitVarInsn(ILOAD, colvar);
        }

        @Override
        protected void appendGetField(final ColumnModel c) {
            if (c.getParent() == null) {
                mv.visitVarInsn(ALOAD, keyvar);
            } else {
                super.appendGetField(c);
            }
        }
    };

    cgs.setFieldReference(pkcol);
    dialect.getSqlTypeInfo(pkcol).generatePreparedStatementSet(cgs);
    mv.visitIincInsn(colvar, 1);
    mv.visitJumpInsn(GOTO, again);

    mv.visitLabel(endbind);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, psvar);
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "queryList",
            Type.getMethodDescriptor(Type.getType(com.google.gwtorm.server.ResultSet.class),
                    new Type[] { Type.getType(PreparedStatement.class) }));
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

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