9077d5dc25
Improvements to 'howExpensiveIs' benchmark test. Use internal digitlist in Formattable (save mallocs). Enable fastpath by default. Enable internal API "parse all input", returning an error if all input was not consumed. X-SVN-Rev: 32397
896 lines
23 KiB
C++
896 lines
23 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 1997-2012, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*
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* File FMTABLE.CPP
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*
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* Modification History:
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*
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* Date Name Description
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* 03/25/97 clhuang Initial Implementation.
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********************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include <math.h>
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#include "unicode/fmtable.h"
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#include "unicode/ustring.h"
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#include "unicode/measure.h"
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#include "unicode/curramt.h"
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#include "charstr.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "decNumber.h"
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#include "digitlst.h"
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// *****************************************************************************
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// class Formattable
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// *****************************************************************************
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U_NAMESPACE_BEGIN
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Formattable)
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struct FmtStackData {
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DigitList stackDecimalNum; // 128
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//CharString stackDecimalStr; // 64
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// -----
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// 192 total
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};
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//-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
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// NOTE: As of 3.0, there are limitations to the UObject API. It does
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// not (yet) support cloning, operator=, nor operator==. To
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// work around this, I implement some simple inlines here. Later
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// these can be modified or removed. [alan]
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// NOTE: These inlines assume that all fObjects are in fact instances
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// of the Measure class, which is true as of 3.0. [alan]
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// Return TRUE if *a == *b.
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static inline UBool objectEquals(const UObject* a, const UObject* b) {
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// LATER: return *a == *b;
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return *((const Measure*) a) == *((const Measure*) b);
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}
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// Return a clone of *a.
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static inline UObject* objectClone(const UObject* a) {
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// LATER: return a->clone();
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return ((const Measure*) a)->clone();
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}
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// Return TRUE if *a is an instance of Measure.
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static inline UBool instanceOfMeasure(const UObject* a) {
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return dynamic_cast<const Measure*>(a) != NULL;
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}
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/**
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* Creates a new Formattable array and copies the values from the specified
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* original.
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* @param array the original array
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* @param count the original array count
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* @return the new Formattable array.
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*/
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static Formattable* createArrayCopy(const Formattable* array, int32_t count) {
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Formattable *result = new Formattable[count];
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if (result != NULL) {
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for (int32_t i=0; i<count; ++i)
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result[i] = array[i]; // Don't memcpy!
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}
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return result;
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}
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//-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
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/**
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* Set 'ec' to 'err' only if 'ec' is not already set to a failing UErrorCode.
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*/
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static void setError(UErrorCode& ec, UErrorCode err) {
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if (U_SUCCESS(ec)) {
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ec = err;
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}
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}
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//
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// Common initialization code, shared by constructors.
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// Put everything into a known state.
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//
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void Formattable::init() {
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fValue.fInt64 = 0;
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fType = kLong;
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fDecimalStr = NULL;
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fDecimalNum = NULL;
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fBogus.setToBogus();
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}
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// -------------------------------------
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// default constructor.
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// Creates a formattable object with a long value 0.
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Formattable::Formattable() {
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init();
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}
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// -------------------------------------
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// Creates a formattable object with a Date instance.
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Formattable::Formattable(UDate date, ISDATE /*isDate*/)
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{
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init();
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fType = kDate;
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fValue.fDate = date;
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}
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// -------------------------------------
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// Creates a formattable object with a double value.
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Formattable::Formattable(double value)
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{
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init();
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fType = kDouble;
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fValue.fDouble = value;
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}
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// -------------------------------------
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// Creates a formattable object with an int32_t value.
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Formattable::Formattable(int32_t value)
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{
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init();
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fValue.fInt64 = value;
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}
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// -------------------------------------
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// Creates a formattable object with an int64_t value.
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Formattable::Formattable(int64_t value)
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{
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init();
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fType = kInt64;
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fValue.fInt64 = value;
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}
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// -------------------------------------
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// Creates a formattable object with a decimal number value from a string.
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Formattable::Formattable(const StringPiece &number, UErrorCode &status) {
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init();
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setDecimalNumber(number, status);
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}
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// -------------------------------------
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// Creates a formattable object with a UnicodeString instance.
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Formattable::Formattable(const UnicodeString& stringToCopy)
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{
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init();
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fType = kString;
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fValue.fString = new UnicodeString(stringToCopy);
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}
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// -------------------------------------
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// Creates a formattable object with a UnicodeString* value.
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// (adopting symantics)
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Formattable::Formattable(UnicodeString* stringToAdopt)
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{
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init();
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fType = kString;
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fValue.fString = stringToAdopt;
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}
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Formattable::Formattable(UObject* objectToAdopt)
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{
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init();
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fType = kObject;
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fValue.fObject = objectToAdopt;
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}
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// -------------------------------------
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Formattable::Formattable(const Formattable* arrayToCopy, int32_t count)
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: UObject(), fType(kArray)
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{
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init();
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fType = kArray;
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fValue.fArrayAndCount.fArray = createArrayCopy(arrayToCopy, count);
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fValue.fArrayAndCount.fCount = count;
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}
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// -------------------------------------
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// copy constructor
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Formattable::Formattable(const Formattable &source)
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: UObject(*this)
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{
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init();
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*this = source;
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}
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// -------------------------------------
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// assignment operator
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Formattable&
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Formattable::operator=(const Formattable& source)
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{
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if (this != &source)
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{
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// Disposes the current formattable value/setting.
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dispose();
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// Sets the correct data type for this value.
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fType = source.fType;
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switch (fType)
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{
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case kArray:
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// Sets each element in the array one by one and records the array count.
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fValue.fArrayAndCount.fCount = source.fValue.fArrayAndCount.fCount;
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fValue.fArrayAndCount.fArray = createArrayCopy(source.fValue.fArrayAndCount.fArray,
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source.fValue.fArrayAndCount.fCount);
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break;
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case kString:
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// Sets the string value.
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fValue.fString = new UnicodeString(*source.fValue.fString);
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break;
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case kDouble:
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// Sets the double value.
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fValue.fDouble = source.fValue.fDouble;
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break;
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case kLong:
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case kInt64:
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// Sets the long value.
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fValue.fInt64 = source.fValue.fInt64;
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break;
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case kDate:
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// Sets the Date value.
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fValue.fDate = source.fValue.fDate;
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break;
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case kObject:
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fValue.fObject = objectClone(source.fValue.fObject);
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break;
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}
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UErrorCode status = U_ZERO_ERROR;
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if (source.fDecimalNum != NULL) {
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fDecimalNum = new DigitList(*source.fDecimalNum); // TODO: use internal digit list
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}
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if (source.fDecimalStr != NULL) {
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fDecimalStr = new CharString(*source.fDecimalStr, status);
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if (U_FAILURE(status)) {
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delete fDecimalStr;
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fDecimalStr = NULL;
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}
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}
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}
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return *this;
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}
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// -------------------------------------
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UBool
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Formattable::operator==(const Formattable& that) const
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{
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int32_t i;
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if (this == &that) return TRUE;
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// Returns FALSE if the data types are different.
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if (fType != that.fType) return FALSE;
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// Compares the actual data values.
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UBool equal = TRUE;
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switch (fType) {
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case kDate:
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equal = (fValue.fDate == that.fValue.fDate);
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break;
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case kDouble:
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equal = (fValue.fDouble == that.fValue.fDouble);
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break;
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case kLong:
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case kInt64:
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equal = (fValue.fInt64 == that.fValue.fInt64);
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break;
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case kString:
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equal = (*(fValue.fString) == *(that.fValue.fString));
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break;
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case kArray:
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if (fValue.fArrayAndCount.fCount != that.fValue.fArrayAndCount.fCount) {
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equal = FALSE;
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break;
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}
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// Checks each element for equality.
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for (i=0; i<fValue.fArrayAndCount.fCount; ++i) {
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if (fValue.fArrayAndCount.fArray[i] != that.fValue.fArrayAndCount.fArray[i]) {
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equal = FALSE;
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break;
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}
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}
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break;
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case kObject:
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if (fValue.fObject == NULL || that.fValue.fObject == NULL) {
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equal = FALSE;
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} else {
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equal = objectEquals(fValue.fObject, that.fValue.fObject);
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}
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break;
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}
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// TODO: compare digit lists if numeric.
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return equal;
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}
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// -------------------------------------
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Formattable::~Formattable()
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{
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dispose();
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}
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// -------------------------------------
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void Formattable::dispose()
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{
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// Deletes the data value if necessary.
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switch (fType) {
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case kString:
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delete fValue.fString;
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break;
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case kArray:
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delete[] fValue.fArrayAndCount.fArray;
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break;
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case kObject:
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delete fValue.fObject;
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break;
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default:
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break;
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}
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fType = kLong;
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fValue.fInt64 = 0;
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delete fDecimalStr;
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fDecimalStr = NULL;
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FmtStackData *stackData = (FmtStackData*)fStackData;
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if(fDecimalNum != &(stackData->stackDecimalNum)) {
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delete fDecimalNum;
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} else {
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fDecimalNum->~DigitList(); // destruct, don't deallocate
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}
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fDecimalNum = NULL;
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}
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Formattable *
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Formattable::clone() const {
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return new Formattable(*this);
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}
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// -------------------------------------
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// Gets the data type of this Formattable object.
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Formattable::Type
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Formattable::getType() const
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{
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return fType;
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}
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UBool
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Formattable::isNumeric() const {
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switch (fType) {
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case kDouble:
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case kLong:
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case kInt64:
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return TRUE;
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default:
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return FALSE;
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}
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}
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// -------------------------------------
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int32_t
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//Formattable::getLong(UErrorCode* status) const
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Formattable::getLong(UErrorCode& status) const
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{
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if (U_FAILURE(status)) {
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return 0;
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}
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switch (fType) {
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case Formattable::kLong:
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return (int32_t)fValue.fInt64;
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case Formattable::kInt64:
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if (fValue.fInt64 > INT32_MAX) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MAX;
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} else if (fValue.fInt64 < INT32_MIN) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MIN;
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} else {
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return (int32_t)fValue.fInt64;
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}
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case Formattable::kDouble:
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if (fValue.fDouble > INT32_MAX) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MAX;
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} else if (fValue.fDouble < INT32_MIN) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MIN;
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} else {
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return (int32_t)fValue.fDouble; // loses fraction
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}
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case Formattable::kObject:
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if (fValue.fObject == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return 0;
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}
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// TODO Later replace this with instanceof call
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if (instanceOfMeasure(fValue.fObject)) {
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return ((const Measure*) fValue.fObject)->
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getNumber().getLong(status);
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}
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default:
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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}
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// -------------------------------------
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// Maximum int that can be represented exactly in a double. (53 bits)
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// Larger ints may be rounded to a near-by value as not all are representable.
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// TODO: move this constant elsewhere, possibly configure it for different
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// floating point formats, if any non-standard ones are still in use.
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static const int64_t U_DOUBLE_MAX_EXACT_INT = 9007199254740992LL;
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int64_t
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Formattable::getInt64(UErrorCode& status) const
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{
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if (U_FAILURE(status)) {
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return 0;
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}
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switch (fType) {
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case Formattable::kLong:
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case Formattable::kInt64:
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return fValue.fInt64;
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case Formattable::kDouble:
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if (fValue.fDouble > (double)U_INT64_MAX) {
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status = U_INVALID_FORMAT_ERROR;
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return U_INT64_MAX;
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} else if (fValue.fDouble < (double)U_INT64_MIN) {
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status = U_INVALID_FORMAT_ERROR;
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return U_INT64_MIN;
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} else if (fabs(fValue.fDouble) > U_DOUBLE_MAX_EXACT_INT && fDecimalNum != NULL) {
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int64_t val = fDecimalNum->getInt64();
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if (val != 0) {
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return val;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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return fValue.fDouble > 0 ? U_INT64_MAX : U_INT64_MIN;
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}
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} else {
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return (int64_t)fValue.fDouble;
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}
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case Formattable::kObject:
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if (fValue.fObject == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return 0;
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}
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if (instanceOfMeasure(fValue.fObject)) {
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return ((const Measure*) fValue.fObject)->
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getNumber().getInt64(status);
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}
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default:
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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}
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// -------------------------------------
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double
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Formattable::getDouble(UErrorCode& status) const
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{
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if (U_FAILURE(status)) {
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return 0;
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}
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switch (fType) {
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case Formattable::kLong:
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case Formattable::kInt64: // loses precision
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return (double)fValue.fInt64;
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case Formattable::kDouble:
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return fValue.fDouble;
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case Formattable::kObject:
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if (fValue.fObject == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return 0;
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}
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// TODO Later replace this with instanceof call
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if (instanceOfMeasure(fValue.fObject)) {
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return ((const Measure*) fValue.fObject)->
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getNumber().getDouble(status);
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}
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default:
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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}
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const UObject*
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Formattable::getObject() const {
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return (fType == kObject) ? fValue.fObject : NULL;
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}
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// -------------------------------------
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// Sets the value to a double value d.
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void
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Formattable::setDouble(double d)
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{
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dispose();
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fType = kDouble;
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fValue.fDouble = d;
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}
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// -------------------------------------
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// Sets the value to a long value l.
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void
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Formattable::setLong(int32_t l)
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{
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dispose();
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fType = kLong;
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fValue.fInt64 = l;
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}
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// -------------------------------------
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// Sets the value to an int64 value ll.
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void
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Formattable::setInt64(int64_t ll)
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{
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dispose();
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fType = kInt64;
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fValue.fInt64 = ll;
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}
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// -------------------------------------
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// Sets the value to a Date instance d.
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void
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Formattable::setDate(UDate d)
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{
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dispose();
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fType = kDate;
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fValue.fDate = d;
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}
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// -------------------------------------
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// Sets the value to a string value stringToCopy.
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void
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Formattable::setString(const UnicodeString& stringToCopy)
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{
|
|
dispose();
|
|
fType = kString;
|
|
fValue.fString = new UnicodeString(stringToCopy);
|
|
}
|
|
|
|
// -------------------------------------
|
|
// Sets the value to an array of Formattable objects.
|
|
|
|
void
|
|
Formattable::setArray(const Formattable* array, int32_t count)
|
|
{
|
|
dispose();
|
|
fType = kArray;
|
|
fValue.fArrayAndCount.fArray = createArrayCopy(array, count);
|
|
fValue.fArrayAndCount.fCount = count;
|
|
}
|
|
|
|
// -------------------------------------
|
|
// Adopts the stringToAdopt value.
|
|
|
|
void
|
|
Formattable::adoptString(UnicodeString* stringToAdopt)
|
|
{
|
|
dispose();
|
|
fType = kString;
|
|
fValue.fString = stringToAdopt;
|
|
}
|
|
|
|
// -------------------------------------
|
|
// Adopts the array value and its count.
|
|
|
|
void
|
|
Formattable::adoptArray(Formattable* array, int32_t count)
|
|
{
|
|
dispose();
|
|
fType = kArray;
|
|
fValue.fArrayAndCount.fArray = array;
|
|
fValue.fArrayAndCount.fCount = count;
|
|
}
|
|
|
|
void
|
|
Formattable::adoptObject(UObject* objectToAdopt) {
|
|
dispose();
|
|
fType = kObject;
|
|
fValue.fObject = objectToAdopt;
|
|
}
|
|
|
|
// -------------------------------------
|
|
UnicodeString&
|
|
Formattable::getString(UnicodeString& result, UErrorCode& status) const
|
|
{
|
|
if (fType != kString) {
|
|
setError(status, U_INVALID_FORMAT_ERROR);
|
|
result.setToBogus();
|
|
} else {
|
|
if (fValue.fString == NULL) {
|
|
setError(status, U_MEMORY_ALLOCATION_ERROR);
|
|
} else {
|
|
result = *fValue.fString;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// -------------------------------------
|
|
const UnicodeString&
|
|
Formattable::getString(UErrorCode& status) const
|
|
{
|
|
if (fType != kString) {
|
|
setError(status, U_INVALID_FORMAT_ERROR);
|
|
return *getBogus();
|
|
}
|
|
if (fValue.fString == NULL) {
|
|
setError(status, U_MEMORY_ALLOCATION_ERROR);
|
|
return *getBogus();
|
|
}
|
|
return *fValue.fString;
|
|
}
|
|
|
|
// -------------------------------------
|
|
UnicodeString&
|
|
Formattable::getString(UErrorCode& status)
|
|
{
|
|
if (fType != kString) {
|
|
setError(status, U_INVALID_FORMAT_ERROR);
|
|
return *getBogus();
|
|
}
|
|
if (fValue.fString == NULL) {
|
|
setError(status, U_MEMORY_ALLOCATION_ERROR);
|
|
return *getBogus();
|
|
}
|
|
return *fValue.fString;
|
|
}
|
|
|
|
// -------------------------------------
|
|
const Formattable*
|
|
Formattable::getArray(int32_t& count, UErrorCode& status) const
|
|
{
|
|
if (fType != kArray) {
|
|
setError(status, U_INVALID_FORMAT_ERROR);
|
|
count = 0;
|
|
return NULL;
|
|
}
|
|
count = fValue.fArrayAndCount.fCount;
|
|
return fValue.fArrayAndCount.fArray;
|
|
}
|
|
|
|
// -------------------------------------
|
|
// Gets the bogus string, ensures mondo bogosity.
|
|
|
|
UnicodeString*
|
|
Formattable::getBogus() const
|
|
{
|
|
return (UnicodeString*)&fBogus; /* cast away const :-( */
|
|
}
|
|
|
|
|
|
// --------------------------------------
|
|
StringPiece Formattable::getDecimalNumber(UErrorCode &status) {
|
|
if (U_FAILURE(status)) {
|
|
return "";
|
|
}
|
|
if (fDecimalStr != NULL) {
|
|
return fDecimalStr->toStringPiece();
|
|
}
|
|
|
|
if (fDecimalNum == NULL) {
|
|
// No decimal number for the formattable yet. Which means the value was
|
|
// set directly by the user as an int, int64 or double. If the value came
|
|
// from parsing, or from the user setting a decimal number, fDecimalNum
|
|
// would already be set.
|
|
//
|
|
fDecimalNum = new DigitList; // TODO: use internal digit list
|
|
if (fDecimalNum == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
return "";
|
|
}
|
|
|
|
switch (fType) {
|
|
case kDouble:
|
|
fDecimalNum->set(this->getDouble());
|
|
break;
|
|
case kLong:
|
|
fDecimalNum->set(this->getLong());
|
|
break;
|
|
case kInt64:
|
|
fDecimalNum->set(this->getInt64());
|
|
break;
|
|
default:
|
|
// The formattable's value is not a numeric type.
|
|
status = U_INVALID_STATE_ERROR;
|
|
return "";
|
|
}
|
|
}
|
|
|
|
fDecimalStr = new CharString;
|
|
if (fDecimalStr == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
return "";
|
|
}
|
|
fDecimalNum->getDecimal(*fDecimalStr, status);
|
|
|
|
return fDecimalStr->toStringPiece();
|
|
}
|
|
|
|
|
|
DigitList *
|
|
Formattable::getInternalDigitList() {
|
|
FmtStackData *stackData = (FmtStackData*)fStackData;
|
|
if(fDecimalNum != &(stackData->stackDecimalNum)) {
|
|
delete fDecimalNum;
|
|
fDecimalNum = new (&(stackData->stackDecimalNum), kOnStack) DigitList();
|
|
} else {
|
|
fDecimalNum->clear();
|
|
}
|
|
return fDecimalNum;
|
|
}
|
|
|
|
// ---------------------------------------
|
|
void
|
|
Formattable::adoptDigitList(DigitList *dl) {
|
|
if(fDecimalNum==dl) {
|
|
fDecimalNum = NULL; // don't delete
|
|
}
|
|
dispose();
|
|
|
|
fDecimalNum = dl;
|
|
|
|
if(dl==NULL) { // allow adoptDigitList(NULL) to clear
|
|
return;
|
|
}
|
|
|
|
// Set the value into the Union of simple type values.
|
|
// Cannot use the set() functions because they would delete the fDecimalNum value,
|
|
|
|
if (fDecimalNum->fitsIntoLong(FALSE)) {
|
|
fType = kLong;
|
|
fValue.fInt64 = fDecimalNum->getLong();
|
|
} else if (fDecimalNum->fitsIntoInt64(FALSE)) {
|
|
fType = kInt64;
|
|
fValue.fInt64 = fDecimalNum->getInt64();
|
|
} else {
|
|
fType = kDouble;
|
|
fValue.fDouble = fDecimalNum->getDouble();
|
|
}
|
|
}
|
|
|
|
|
|
// ---------------------------------------
|
|
void
|
|
Formattable::setDecimalNumber(const StringPiece &numberString, UErrorCode &status) {
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
dispose();
|
|
|
|
// Copy the input string and nul-terminate it.
|
|
// The decNumber library requires nul-terminated input. StringPiece input
|
|
// is not guaranteed nul-terminated. Too bad.
|
|
// CharString automatically adds the nul.
|
|
DigitList *dnum = new DigitList(); // TODO: use getInternalDigitList
|
|
if (dnum == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
return;
|
|
}
|
|
dnum->set(CharString(numberString, status).toStringPiece(), status);
|
|
if (U_FAILURE(status)) {
|
|
delete dnum;
|
|
return; // String didn't contain a decimal number.
|
|
}
|
|
adoptDigitList(dnum);
|
|
|
|
// Note that we do not hang on to the caller's input string.
|
|
// If we are asked for the string, we will regenerate one from fDecimalNum.
|
|
}
|
|
|
|
#if 0
|
|
//----------------------------------------------------
|
|
// console I/O
|
|
//----------------------------------------------------
|
|
#ifdef _DEBUG
|
|
|
|
#include <iostream>
|
|
using namespace std;
|
|
|
|
#include "unicode/datefmt.h"
|
|
#include "unistrm.h"
|
|
|
|
class FormattableStreamer /* not : public UObject because all methods are static */ {
|
|
public:
|
|
static void streamOut(ostream& stream, const Formattable& obj);
|
|
|
|
private:
|
|
FormattableStreamer() {} // private - forbid instantiation
|
|
};
|
|
|
|
// This is for debugging purposes only. This will send a displayable
|
|
// form of the Formattable object to the output stream.
|
|
|
|
void
|
|
FormattableStreamer::streamOut(ostream& stream, const Formattable& obj)
|
|
{
|
|
static DateFormat *defDateFormat = 0;
|
|
|
|
UnicodeString buffer;
|
|
switch(obj.getType()) {
|
|
case Formattable::kDate :
|
|
// Creates a DateFormat instance for formatting the
|
|
// Date instance.
|
|
if (defDateFormat == 0) {
|
|
defDateFormat = DateFormat::createInstance();
|
|
}
|
|
defDateFormat->format(obj.getDate(), buffer);
|
|
stream << buffer;
|
|
break;
|
|
case Formattable::kDouble :
|
|
// Output the double as is.
|
|
stream << obj.getDouble() << 'D';
|
|
break;
|
|
case Formattable::kLong :
|
|
// Output the double as is.
|
|
stream << obj.getLong() << 'L';
|
|
break;
|
|
case Formattable::kString:
|
|
// Output the double as is. Please see UnicodeString console
|
|
// I/O routine for more details.
|
|
stream << '"' << obj.getString(buffer) << '"';
|
|
break;
|
|
case Formattable::kArray:
|
|
int32_t i, count;
|
|
const Formattable* array;
|
|
array = obj.getArray(count);
|
|
stream << '[';
|
|
// Recursively calling the console I/O routine for each element in the array.
|
|
for (i=0; i<count; ++i) {
|
|
FormattableStreamer::streamOut(stream, array[i]);
|
|
stream << ( (i==(count-1)) ? "" : ", " );
|
|
}
|
|
stream << ']';
|
|
break;
|
|
default:
|
|
// Not a recognizable Formattable object.
|
|
stream << "INVALID_Formattable";
|
|
}
|
|
stream.flush();
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|