Examples with Exceptions_attribute com.sun.tools.classfile.Exceptions_attribute used on opensource projects

Example 1 with Exceptions_attribute

use of com.sun.tools.classfile.Exceptions_attribute in project ceylon-compiler by ceylon.

the class ClassWriter method writeMethod.

protected void writeMethod(Method m) {
    if (!options.checkAccess(m.access_flags))
        return;
    method = m;
    AccessFlags flags = m.access_flags;
    Descriptor d;
    Type.MethodType methodType;
    List<? extends Type> methodExceptions;
    Signature_attribute sigAttr = getSignature(m.attributes);
    if (sigAttr == null) {
        d = m.descriptor;
        methodType = null;
        methodExceptions = null;
    } else {
        Signature methodSig = sigAttr.getParsedSignature();
        d = methodSig;
        try {
            methodType = (Type.MethodType) methodSig.getType(constant_pool);
            methodExceptions = methodType.throwsTypes;
            if (methodExceptions != null && methodExceptions.isEmpty())
                methodExceptions = null;
        } catch (ConstantPoolException e) {
            // report error?
            // fall back on standard descriptor
            methodType = null;
            methodExceptions = null;
        }
    }
    writeModifiers(flags.getMethodModifiers());
    if (methodType != null) {
        writeListIfNotEmpty("<", methodType.typeParamTypes, "> ");
    }
    if (getName(m).equals("<init>")) {
        print(getJavaName(classFile));
        print(getJavaParameterTypes(d, flags));
    } else if (getName(m).equals("<clinit>")) {
        print("{}");
    } else {
        print(getJavaReturnType(d));
        print(" ");
        print(getName(m));
        print(getJavaParameterTypes(d, flags));
    }
    Attribute e_attr = m.attributes.get(Attribute.Exceptions);
    if (e_attr != null) {
        // if there are generic exceptions, there must be erased exceptions
        if (e_attr instanceof Exceptions_attribute) {
            Exceptions_attribute exceptions = (Exceptions_attribute) e_attr;
            print(" throws ");
            if (methodExceptions != null) {
                // use generic list if available
                writeList("", methodExceptions, "");
            } else {
                for (int i = 0; i < exceptions.number_of_exceptions; i++) {
                    if (i > 0)
                        print(", ");
                    print(getJavaException(exceptions, i));
                }
            }
        } else {
            report("Unexpected or invalid value for Exceptions attribute");
        }
    }
    println(";");
    indent(+1);
    if (options.showInternalSignatures) {
        println("Signature: " + getValue(m.descriptor));
    }
    if (options.verbose && !options.compat) {
        writeList("flags: ", flags.getMethodFlags(), NEWLINE);
    }
    Code_attribute code = null;
    Attribute c_attr = m.attributes.get(Attribute.Code);
    if (c_attr != null) {
        if (c_attr instanceof Code_attribute)
            code = (Code_attribute) c_attr;
        else
            report("Unexpected or invalid value for Code attribute");
    }
    if (options.showDisassembled && !options.showAllAttrs) {
        if (code != null) {
            println("Code:");
            codeWriter.writeInstrs(code);
            codeWriter.writeExceptionTable(code);
        }
    }
    if (options.showLineAndLocalVariableTables) {
        if (code != null) {
            attrWriter.write(code, code.attributes.get(Attribute.LineNumberTable), constant_pool);
            attrWriter.write(code, code.attributes.get(Attribute.LocalVariableTable), constant_pool);
        }
    }
    if (options.showAllAttrs) {
        Attribute[] attrs = m.attributes.attrs;
        for (Attribute attr : attrs) attrWriter.write(m, attr, constant_pool);
    }
    indent(-1);
    // set pendingNewline to write a newline before the next method (if any)
    // if a separator is desired
    setPendingNewline(options.showDisassembled || options.showAllAttrs || options.showInternalSignatures || options.showLineAndLocalVariableTables || options.verbose);
}