pack-priv abstract Class Symbol

The tag value of the BootstrapMethods attribute entries.

The tag value of CONSTANT_Class_info JVMS structures.

The tag value of CONSTANT_Double_info JVMS structures.

The tag value of CONSTANT_Dynamic_info JVMS structures.

The tag value of CONSTANT_Fieldref_info JVMS structures.

The tag value of CONSTANT_Float_info JVMS structures.

The tag value of CONSTANT_Integer_info JVMS structures.

The tag value of CONSTANT_InterfaceMethodref_info JVMS structures.

The tag value of CONSTANT_InvokeDynamic_info JVMS structures.

The tag value of CONSTANT_Long_info JVMS structures.

The tag value of CONSTANT_MethodHandle_info JVMS structures.

The tag value of CONSTANT_MethodType_info JVMS structures.

The tag value of CONSTANT_Methodref_info JVMS structures.

The tag value of CONSTANT_Module_info JVMS structures.

The tag value of CONSTANT_NameAndType_info JVMS structures.

The tag value of CONSTANT_Package_info JVMS structures.

The tag value of CONSTANT_String_info JVMS structures.

The tag value of CONSTANT_Utf8_info JVMS structures.

The numeric value of this symbol. This is:

• the symbol's value for CONSTANT_INTEGER_TAG,CONSTANT_FLOAT_TAG, CONSTANT_LONG_TAG, CONSTANT_DOUBLE_TAG,
• the CONSTANT_MethodHandle_info reference_kind field value for CONSTANT_METHOD_HANDLE_TAG symbols,
• the CONSTANT_InvokeDynamic_info bootstrap_method_attr_index field value for CONSTANT_INVOKE_DYNAMIC_TAG symbols,
• the offset of a bootstrap method in the BootstrapMethods boostrap_methods array, for CONSTANT_DYNAMIC_TAG or BOOTSTRAP_METHOD_TAG symbols,
• the bytecode offset of the NEW instruction that created an Frame#ITEM_UNINITIALIZED type for UNINITIALIZED_TYPE_TAG symbols,
• the index of the Label (in the SymbolTable#labelTable table) of the NEW instruction that created an Frame#ITEM_UNINITIALIZED type for FORWARD_UNINITIALIZED_TYPE_TAG symbols,
• the indices (in the class' type table) of two TYPE_TAG source types for MERGED_TYPE_TAG symbols,
• 0 for the other types of symbol.

The tag value of an uninitialized type entry in the type table of a class. This type is used for the unusual case where the NEW instruction is after the <init> constructor call (in bytecode offset order), i.e. when the label of the NEW instruction is not resolved when the constructor call is visited. If the NEW instruction is before the constructor call, use the UNINITIALIZED_TYPE_TAG tag value instead.

The index of this symbol in the constant pool, in the BootstrapMethods attribute, or in the (ASM specific) type table of a class (depending on the tag value).

Additional information about this symbol, generally computed lazily. Warning: the value of this field is ignored when comparing Symbol instances (to avoid duplicate entries in a SymbolTable). Therefore, this field should only contain data that can be computed from the other fields of this class. It contains:

• the Type#getArgumentsAndReturnSizes of the symbol's method descriptor for CONSTANT_METHODREF_TAG, CONSTANT_INTERFACE_METHODREF_TAG and CONSTANT_INVOKE_DYNAMIC_TAG symbols,
• the index in the InnerClasses_attribute 'classes' array (plus one) corresponding to this class, for CONSTANT_CLASS_TAG symbols,
• the index (in the class' type table) of the merged type of the two source types for MERGED_TYPE_TAG symbols,
• 0 for the other types of symbol, or if this field has not been computed yet.

The tag value of a merged type entry in the (ASM specific) type table of a class.

The name of the class field or method corresponding to this symbol. Only used for CONSTANT_FIELDREF_TAG, CONSTANT_METHODREF_TAG, CONSTANT_INTERFACE_METHODREF_TAG, CONSTANT_NAME_AND_TYPE_TAG, CONSTANT_METHOD_HANDLE_TAG, CONSTANT_DYNAMIC_TAG and CONSTANT_INVOKE_DYNAMIC_TAG symbols.

The internal name of the owner class of this symbol. Only used for CONSTANT_FIELDREF_TAG, CONSTANT_METHODREF_TAG, CONSTANT_INTERFACE_METHODREF_TAG, and CONSTANT_METHOD_HANDLE_TAG symbols.

A tag indicating the type of this symbol. Must be one of the static tag values defined in this class.

The tag value of a normal type entry in the (ASM specific) type table of a class.

The tag value of an uninitialized type entry in the type table of a class. This type is used for the normal case where the NEW instruction is before the <init> constructor call (in bytecode offset order), i.e. when the label of the NEW instruction is resolved when the constructor call is visited. If the NEW instruction is after the constructor call, use the FORWARD_UNINITIALIZED_TYPE_TAG tag value instead.

The string value of this symbol. This is:

• a field or method descriptor for CONSTANT_FIELDREF_TAG, CONSTANT_METHODREF_TAG, CONSTANT_INTERFACE_METHODREF_TAG, CONSTANT_NAME_AND_TYPE_TAG, CONSTANT_METHOD_HANDLE_TAG, CONSTANT_METHOD_TYPE_TAG, CONSTANT_DYNAMIC_TAG and CONSTANT_INVOKE_DYNAMIC_TAG symbols,
• an arbitrary string for CONSTANT_UTF8_TAG and CONSTANT_STRING_TAG symbols,
• an internal class name for CONSTANT_CLASS_TAG, TYPE_TAG, UNINITIALIZED_TYPE_TAG and FORWARD_UNINITIALIZED_TYPE_TAG symbols,
• null for the other types of symbol.

Constructs a new Symbol. This constructor can't be used directly because the Symbol class is abstract. Instead, use the factory methods of the SymbolTable class.

Parameters

index:int

the symbol index in the constant pool, in the BootstrapMethods attribute, or in the (ASM specific) type table of a class (depending on 'tag').

tag:int

the symbol type. Must be one of the static tag values defined in this class.

owner:String

The internal name of the symbol's owner class. Maybe null.

name:String

The name of the symbol's corresponding class field or method. Maybe null.

value:String

The string value of this symbol. Maybe null.

data:long

The numeric value of this symbol.

Returns the result Type#getArgumentsAndReturnSizes on value.

Returns:int

the result Type#getArgumentsAndReturnSizes on value (memoized in info for efficiency). This should only be used for CONSTANT_METHODREF_TAG, CONSTANT_INTERFACE_METHODREF_TAG and CONSTANT_INVOKE_DYNAMIC_TAG symbols.