/* BSD 2-Clause License - see OPAL/LICENSE for details. */ package org.opalj package bi package reader import java.io.DataInputStream import org.opalj.control.fillArraySeq import scala.collection.immutable.ArraySeq import scala.reflect.ClassTag /** * Template method to read the (Java 7) ''BootstrapMethods'' attribute. * * '''From the Specification''' * The `BootstrapMethods` attribute is a variable-length attribute in the * attributes table of a `ClassFile` structure. The `BootstrapMethods` attribute * records bootstrap method specifiers referenced by `invokedynamic` instructions. */ trait BootstrapMethods_attributeReader extends AttributeReader { // // TYPE DEFINITIONS AND FACTORY METHODS // type BootstrapMethods_attribute >: Null <: Attribute type BootstrapMethod <: AnyRef implicit val bootstrapMethodType: ClassTag[BootstrapMethod] // TODO: Replace in Scala 3 with `type BootstrapMethod: ClassTag` type BootstrapMethods = ArraySeq[BootstrapMethod] type BootstrapArgument <: AnyRef implicit val bootstrapArgumentType: ClassTag[BootstrapArgument] // TODO: Replace in Scala 3 with `type BootstrapArgument: ClassTag` type BootstrapArguments = ArraySeq[BootstrapArgument] def BootstrapMethods_attribute( constant_pool: Constant_Pool, ap_name_index: Constant_Pool_Index, ap_descriptor_index: Constant_Pool_Index, attribute_name_index: Int, bootstrap_methods: BootstrapMethods ): BootstrapMethods_attribute def BootstrapMethod( constant_pool: Constant_Pool, bootstrap_method_ref: Int, bootstrap_arguments: BootstrapArguments ): BootstrapMethod def BootstrapArgument( constant_pool: Constant_Pool, constant_pool_ref: Int ): BootstrapArgument // // IMPLEMENTATION // def BootstrapArgument(cp: Constant_Pool, in: DataInputStream): BootstrapArgument = { BootstrapArgument(cp, in.readUnsignedShort) } def BootstrapMethod(cp: Constant_Pool, in: DataInputStream): BootstrapMethod = { BootstrapMethod( cp, in.readUnsignedShort, fillArraySeq(in.readUnsignedShort) { BootstrapArgument(cp, in) } ) } /** *
* BootstrapMethods_attribute { * u2 attribute_name_index; * u4 attribute_length; * u2 num_bootstrap_methods; * { u2 bootstrap_method_ref; * u2 num_bootstrap_arguments; * u2 bootstrap_arguments[num_bootstrap_arguments]; * } bootstrap_methods[num_bootstrap_methods]; * } **/ private[this] def parserFactory() = ( cp: Constant_Pool, ap: AttributeParent, ap_name_index: Constant_Pool_Index, ap_descriptor_index: Constant_Pool_Index, attribute_name_index: Constant_Pool_Index, in: DataInputStream ) => { /*val attribute_length =*/ in.readInt val num_bootstrap_methods = in.readUnsignedShort if (num_bootstrap_methods > 0 || reifyEmptyAttributes) { BootstrapMethods_attribute( cp, ap_name_index, ap_descriptor_index, attribute_name_index, fillArraySeq(num_bootstrap_methods) { BootstrapMethod(cp, in) } ) } else { null } } registerAttributeReader(BootstrapMethodsAttribute.Name -> parserFactory()) }