org.apache.xalan.xsltc.compiler.util
Class RealType

java.lang.Object
  org.apache.xalan.xsltc.compiler.util.Type
      org.apache.xalan.xsltc.compiler.util.NumberType
          org.apache.xalan.xsltc.compiler.util.RealType

All Implemented Interfaces:

org.apache.bcel.generic.InstructionConstants, Constants

public final class RealType
extends NumberType

Author:

Jacek Ambroziak, Santiago Pericas-Geertsen

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.bcel.generic.InstructionConstants

org.apache.bcel.generic.InstructionConstants.Clinit

Field Summary

Fields inherited from class org.apache.xalan.xsltc.compiler.util.Type

Attribute, Boolean, Comment, Element, Int, Node, NodeSet, Object, Processing_Instruction, Real, Reference, ResultTree, Root, String, Text, Void

Fields inherited from interface org.apache.xalan.xsltc.compiler.Constants

ABSOLUTE_ITERATOR, ACC_FINAL, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_SUPER, ADD_ATTRIBUTE, ADD_ATTRIBUTE_SIG, ADD_ITERATOR, ADD_ITERATOR_SIG, ADD_PARAMETER, ADD_PARAMETER_SIG, APPLY_TEMPLATES, ATTR_SET_SIG, ATTRIBUTE_LIST_FIELD, ATTRIBUTE_LIST_IMPL_CLASS, ATTRIBUTE_LIST_IMPL_SIG, ATTRIBUTES_SIG, BASIS_LIBRARY_CLASS, BOOLEAN_CLASS, BOOLEAN_VALUE, BOOLEAN_VALUE_SIG, CACHED_NODE_LIST_ITERATOR_CLASS, CHARACTERS, CHARACTERS_SIG, CHARACTERSW, CHARACTERSW_SIG, CLEAR_ATTRIBUTES, CLEAR_ATTRIBUTES_SIG, COLLATOR_CLASS, COLLATOR_SIG, COMPILER_PACKAGE, CURRENT_NODE_LIST_FILTER, CURRENT_NODE_LIST_FILTER_SIG, CURRENT_NODE_LIST_ITERATOR, CURRENT_NODE_LIST_ITERATOR_SIG, DEFAULT_NODE_COUNTER, DEFAULT_NODE_COUNTER_SIG, DOCUMENT_PNAME, DOM_ADAPTER_CLASS, DOM_ADAPTER_SIG, DOM_FIELD, DOM_IMPL, DOM_IMPL_CLASS, DOM_IMPL_SIG, DOM_INTF, DOM_INTF_SIG, DOM_PNAME, DOUBLE_CLASS, DOUBLE_SIG, DOUBLE_VALUE, DOUBLE_VALUE_SIG, DUP_FILTERED_ITERATOR, EMPTYATTR_FIELD, EMPTYSTRING, ERROR, EXPAND_STYLESHEET_QNAME_REF, EXPAND_STYLESHEET_QNAME_SIG, FALLBACK_CLASS, FATAL, FILTER_INTERFACE, FILTER_INTERFACE_SIG, FILTER_ITERATOR, FILTER_STEP_ITERATOR, FORMAT_SYMBOLS_FIELD, GET_ATTRIBUTE_VALUE, GET_ATTRIBUTE_VALUE_SIG, GET_CHILDREN, GET_CHILDREN_SIG, GET_ELEMENT_VALUE, GET_ELEMENT_VALUE_SIG, GET_ITERATOR_SIG, GET_NODE_NAME, GET_NODE_NAME_SIG, GET_NODE_TYPE, GET_NODE_TYPE_SIG, GET_NODE_VALUE, GET_NODE_VALUE_ITERATOR, GET_NODE_VALUE_ITERATOR_SIG, GET_NODE_VALUE_SIG, GET_PARAMETER, GET_PARAMETER_SIG, GET_PARENT, GET_PARENT_SIG, GET_TYPED_CHILDREN, GET_TYPED_CHILDREN_SIG, GET_UNPARSED_ENTITY_URI, GET_UNPARSED_ENTITY_URI_SIG, HAS_ATTRIBUTE, HAS_ATTRIBUTE_SIG, HASIDCALL_INDEX, HASIDCALL_INDEX_SIG, INT_VALUE, INT_VALUE_SIG, INTEGER_CLASS, INTEGER_SIG, INTERNAL, INVOKE_METHOD, ITERATOR_FIELD_SIG, ITERATOR_PNAME, KEY_INDEX_CLASS, KEY_INDEX_ITERATOR_SIG, KEY_INDEX_SIG, LAST_INDEX, LOAD_DOCUMENT_CLASS, LOCALE_CLASS, LOCALE_SIG, LOOKUP_STYLESHEET_QNAME_NS_REF, LOOKUP_STYLESHEET_QNAME_NS_SIG, MAKE_NODE, MAKE_NODE_LIST, MAKE_NODE_LIST_SIG, MAKE_NODE_LIST_SIG2, MAKE_NODE_SIG, MAKE_NODE_SIG2, MATCHING_ITERATOR, MATH_CLASS, MULTI_DOM_CLASS, MULTI_DOM_SIG, NAMES_INDEX, NAMES_INDEX_SIG, NAMESPACE_FEATURE, NAMESPACE_INDEX, NAMESPACE_INDEX_SIG, NEXT, NEXT_SIG, NEXTID, NODE, NODE_COUNTER, NODE_COUNTER_SIG, NODE_FIELD, NODE_FIELD_SIG, NODE_ITERATOR, NODE_ITERATOR_BASE, NODE_ITERATOR_SIG, NODE_PNAME, NODE_SIG, NODE_SORT_FACTORY, NODE_SORT_FACTORY_SIG, NODE_SORT_RECORD, NODE_SORT_RECORD_SIG, NS_ANCESTORS_INDEX_SIG, NTH_ITERATOR_CLASS, OBJECT_CLASS, OBJECT_SIG, ORDER_ITERATOR, ORDER_ITERATOR_SIG, OUTPUT_BASE, OUTPUT_HANDLER, OUTPUT_HANDLER_SIG, POP_PARAM_FRAME, POP_PARAM_FRAME_SIG, POSITION_INDEX, PREFIX_URIS_ARRAY_SIG, PREFIX_URIS_IDX_SIG, PUSH_PARAM_FRAME, PUSH_PARAM_FRAME_SIG, REDIRECT_URI, RESET, RESET_SIG, RTF_INITIAL_SIZE, RUNTIME_NODE_CLASS, RUNTIME_PACKAGE, SAX_IMPL, SAX_IMPL_CLASS, SAX_IMPL_SIG, SET_START_NODE, SET_START_NODE_SIG, SINGLETON_ITERATOR, SORT_ITERATOR, SORT_ITERATOR_SIG, STATIC_CHAR_DATA_FIELD, STATIC_CHAR_DATA_FIELD_SIG, STATIC_NAMES_ARRAY_FIELD, STATIC_NAMESPACE_ARRAY_FIELD, STATIC_NS_ANCESTORS_ARRAY_FIELD, STATIC_PREFIX_URIS_ARRAY_FIELD, STATIC_PREFIX_URIS_IDX_ARRAY_FIELD, STATIC_TYPES_ARRAY_FIELD, STATIC_URIS_ARRAY_FIELD, STEP_ITERATOR_CLASS, STREAM_XML_OUTPUT, STRING, STRING_BUFFER_CLASS, STRING_BUFFER_SIG, STRING_CLASS, STRING_SIG, STRING_TO_INT, STRING_TO_INT_SIG, STRING_TO_REAL, STRING_TO_REAL_SIG, STRING_VALUE_HANDLER, STRING_VALUE_HANDLER_SIG, STRING_WRITER, STRIP_SPACE, STRIP_SPACE_INTF, STRIP_SPACE_PARAMS, STRIP_SPACE_SIG, TRANSLET_CLASS, TRANSLET_FIELD, TRANSLET_FIELD_SIG, TRANSLET_INTF, TRANSLET_INTF_SIG, TRANSLET_OUTPUT_BASE, TRANSLET_OUTPUT_INTERFACE, TRANSLET_OUTPUT_PNAME, TRANSLET_OUTPUT_SIG, TRANSLET_PNAME, TRANSLET_SIG, TRANSLET_URI, TRANSLET_VERSION_INDEX, TRANSLET_VERSION_INDEX_SIG, TYPES_INDEX, TYPES_INDEX_SIG, UNION_ITERATOR_CLASS, UNION_ITERATOR_SIG, UNSUPPORTED, URIS_INDEX, URIS_INDEX_SIG, WARNING, WRITER_SIG, XHTML_URI, XMLNS_PREFIX, XMLNS_STRING, XMLNS_URI, XSLT_PACKAGE, XSLT_URI

Fields inherited from interface org.apache.bcel.generic.InstructionConstants

AALOAD, AASTORE, ACONST_NULL, ALOAD_0, ALOAD_1, ALOAD_2, ARETURN, ARRAYLENGTH, ASTORE_0, ASTORE_1, ASTORE_2, ATHROW, BALOAD, BASTORE, bla, CALOAD, CASTORE, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DMUL, DNEG, DREM, DRETURN, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FMUL, FNEG, FREM, FRETURN, FSUB, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, ILOAD_0, ILOAD_1, ILOAD_2, IMUL, INEG, INSTRUCTIONS, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE_0, ISTORE_1, ISTORE_2, ISUB, IUSHR, IXOR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDIV, LMUL, LNEG, LOR, LREM, LRETURN, LSHL, LSHR, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, NOP, POP, POP2, RETURN, SALOAD, SASTORE, SWAP, THIS

Method Summary

org.apache.bcel.generic.Instruction	ADD()
org.apache.bcel.generic.Instruction	CMP(boolean less)
int	distanceTo(Type type) Returns the distance between two types.
org.apache.bcel.generic.Instruction	DIV()
org.apache.bcel.generic.Instruction	DUP()
boolean	identicalTo(Type other) Returns true if this and other are identical types.
org.apache.bcel.generic.Instruction	LOAD(int slot)
org.apache.bcel.generic.Instruction	MUL()
org.apache.bcel.generic.Instruction	NEG()
org.apache.bcel.generic.Instruction	POP()
org.apache.bcel.generic.Instruction	REM()
org.apache.bcel.generic.Instruction	STORE(int slot)
org.apache.bcel.generic.Instruction	SUB()
org.apache.bcel.generic.Type	toJCType()
java.lang.String	toSignature() Returns the signature of an internal type's external representation.
java.lang.String	toString() Returns a string representation of this type.
void	translateBox(ClassGenerator classGen, MethodGenerator methodGen) Translates an object of this type to its boxed representation.
void	translateFrom(ClassGenerator classGen, MethodGenerator methodGen, java.lang.Class clazz) Translates an external (primitive) Java type into a real.
void	translateTo(ClassGenerator classGen, MethodGenerator methodGen, BooleanType type) Expects a real on the stack and pushes a 0 if that number is 0.0 and a 1 otherwise.
void	translateTo(ClassGenerator classGen, MethodGenerator methodGen, java.lang.Class clazz) Translates a real into the Java type denoted by clazz.
void	translateTo(ClassGenerator classGen, MethodGenerator methodGen, IntType type) Expects a real on the stack and pushes a truncated integer value
void	translateTo(ClassGenerator classGen, MethodGenerator methodGen, ReferenceType type) Expects a double on the stack and pushes a boxed double.
void	translateTo(ClassGenerator classGen, MethodGenerator methodGen, StringType type) Expects a real on the stack and pushes its string value by calling Double.toString(double d).
void	translateTo(ClassGenerator classGen, MethodGenerator methodGen, Type type) Translates a real into an object of internal type type.
FlowList	translateToDesynthesized(ClassGenerator classGen, MethodGenerator methodGen, BooleanType type) Translates a real into a non-synthesized boolean.
void	translateUnBox(ClassGenerator classGen, MethodGenerator methodGen) Translates an object of this type to its unboxed representation.

Methods inherited from class org.apache.xalan.xsltc.compiler.util.NumberType

isNumber, isSimple

Methods inherited from class org.apache.xalan.xsltc.compiler.util.Type

GE, getClassName, GT, implementedAsMethod, LE, LT, newObjectType, newObjectType, translateToDesynthesized

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

toString

public java.lang.String toString()

Description copied from class: Type

Returns a string representation of this type.

Specified by:

toString in class Type

identicalTo

public boolean identicalTo(Type other)

Description copied from class: Type

Returns true if this and other are identical types.

Specified by:

identicalTo in class Type

toSignature

public java.lang.String toSignature()

Description copied from class: Type

Returns the signature of an internal type's external representation.

Specified by:

toSignature in class Type

toJCType

public org.apache.bcel.generic.Type toJCType()

Specified by:

toJCType in class Type

distanceTo

public int distanceTo(Type type)

Description copied from class: Type

Returns the distance between two types. This measure is used to select overloaded functions/operators. This method is typically redefined by the subclasses.

Overrides:

distanceTo in class Type

See Also:

Type.distanceTo(org.apache.xalan.xsltc.compiler.util.Type)

translateTo

public void translateTo(ClassGenerator classGen,
                        MethodGenerator methodGen,
                        Type type)

Translates a real into an object of internal type type. The translation to int is undefined since reals are never converted to ints.

Overrides:

translateTo in class Type

See Also:

Type.translateTo(org.apache.xalan.xsltc.compiler.util.ClassGenerator, org.apache.xalan.xsltc.compiler.util.MethodGenerator, org.apache.xalan.xsltc.compiler.util.Type)

translateTo

public void translateTo(ClassGenerator classGen,
                        MethodGenerator methodGen,
                        StringType type)

Expects a real on the stack and pushes its string value by calling Double.toString(double d).

See Also:

Type.translateTo(org.apache.xalan.xsltc.compiler.util.ClassGenerator, org.apache.xalan.xsltc.compiler.util.MethodGenerator, org.apache.xalan.xsltc.compiler.util.Type)

translateTo

public void translateTo(ClassGenerator classGen,
                        MethodGenerator methodGen,
                        BooleanType type)

Expects a real on the stack and pushes a 0 if that number is 0.0 and a 1 otherwise.

See Also:

Type.translateTo(org.apache.xalan.xsltc.compiler.util.ClassGenerator, org.apache.xalan.xsltc.compiler.util.MethodGenerator, org.apache.xalan.xsltc.compiler.util.Type)

translateTo

public void translateTo(ClassGenerator classGen,
                        MethodGenerator methodGen,
                        IntType type)

Expects a real on the stack and pushes a truncated integer value

See Also:

Type.translateTo(org.apache.xalan.xsltc.compiler.util.ClassGenerator, org.apache.xalan.xsltc.compiler.util.MethodGenerator, org.apache.xalan.xsltc.compiler.util.Type)

translateToDesynthesized

public FlowList translateToDesynthesized(ClassGenerator classGen,
                                         MethodGenerator methodGen,
                                         BooleanType type)

Translates a real into a non-synthesized boolean. It does not push a 0 or a 1 but instead returns branchhandle list to be appended to the false list. A NaN must be converted to "false".

Overrides:

translateToDesynthesized in class Type

See Also:

Type.translateToDesynthesized(org.apache.xalan.xsltc.compiler.util.ClassGenerator, org.apache.xalan.xsltc.compiler.util.MethodGenerator, org.apache.xalan.xsltc.compiler.util.Type)

translateTo

public void translateTo(ClassGenerator classGen,
                        MethodGenerator methodGen,
                        ReferenceType type)

Expects a double on the stack and pushes a boxed double. Boxed double are represented by an instance of java.lang.Double.

See Also:

Type.translateTo(org.apache.xalan.xsltc.compiler.util.ClassGenerator, org.apache.xalan.xsltc.compiler.util.MethodGenerator, org.apache.xalan.xsltc.compiler.util.Type)

translateTo

public void translateTo(ClassGenerator classGen,
                        MethodGenerator methodGen,
                        java.lang.Class clazz)

Translates a real into the Java type denoted by clazz. Expects a real on the stack and pushes a number of the appropriate type after coercion.

Overrides:

translateTo in class Type

translateFrom

public void translateFrom(ClassGenerator classGen,
                          MethodGenerator methodGen,
                          java.lang.Class clazz)

Translates an external (primitive) Java type into a real. Expects a java object on the stack and pushes a real (i.e., a double).

Overrides:

translateFrom in class Type

translateBox

public void translateBox(ClassGenerator classGen,
                         MethodGenerator methodGen)

Translates an object of this type to its boxed representation.

Overrides:

translateBox in class Type

translateUnBox

public void translateUnBox(ClassGenerator classGen,
                           MethodGenerator methodGen)

Translates an object of this type to its unboxed representation.

Overrides:

translateUnBox in class Type

ADD

public org.apache.bcel.generic.Instruction ADD()

Overrides:

ADD in class Type

SUB

public org.apache.bcel.generic.Instruction SUB()

Overrides:

SUB in class Type

MUL

public org.apache.bcel.generic.Instruction MUL()

Overrides:

MUL in class Type

DIV

public org.apache.bcel.generic.Instruction DIV()

Overrides:

DIV in class Type

REM

public org.apache.bcel.generic.Instruction REM()

Overrides:

REM in class Type

NEG

public org.apache.bcel.generic.Instruction NEG()

Overrides:

NEG in class Type

LOAD

public org.apache.bcel.generic.Instruction LOAD(int slot)

Overrides:

LOAD in class Type

STORE

public org.apache.bcel.generic.Instruction STORE(int slot)

Overrides:

STORE in class Type

POP

public org.apache.bcel.generic.Instruction POP()

Overrides:

POP in class Type

CMP

public org.apache.bcel.generic.Instruction CMP(boolean less)

Overrides:

CMP in class Type

DUP

public org.apache.bcel.generic.Instruction DUP()

Overrides:

DUP in class Type