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base repository: jruby/jruby
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head repository: jruby/jruby
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compare: 967ca4064d33
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  • 5 commits
  • 2 files changed
  • 1 contributor

Commits on Jun 4, 2015

  1. minor BigDecimal code cleanup

    @kares
    kares committed Jun 4, 2015
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    fdf5201 View commit details

  2. [bigdecimal] backport simplified newInstance impl from master

    @kares
    kares committed Jun 4, 2015
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    2b990bc View commit details

  3. [bigdecimal] keep the simplified newInstance backport 1.8 compatible

    @kares
    kares committed Jun 4, 2015
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    4ac1c5d View commit details

  4. avoid deprecated newInstance + one less pattern to match on BigDecima… 

    …l.new
    @kares
    kares committed Jun 4, 2015
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    e492b3a View commit details

  5. basic BigDecimal sub-class test ... all working the same as MRI 1.8/1.9 

    ... no need to address #365 as the allocate+initialize sequence seems MRI-like
    @kares
    kares committed Jun 4, 2015
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    967ca40 View commit details
Showing with 171 additions and 133 deletions.
  1. +122 −131 core/src/main/java/org/jruby/ext/bigdecimal/RubyBigDecimal.java
  2. +49 −2 test/test_big_decimal.rb
253 changes: 122 additions & 131 deletions core/src/main/java/org/jruby/ext/bigdecimal/RubyBigDecimal.java
View file
Original file line number Diff line number Diff line change
@@ -69,8 +69,9 @@
*/
@JRubyClass(name="BigDecimal", parent="Numeric")
public class RubyBigDecimal extends RubyNumeric {
private static final ObjectAllocator BIGDECIMAL_ALLOCATOR = new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass klass) {

private static final ObjectAllocator ALLOCATOR = new ObjectAllocator() {
public RubyBigDecimal allocate(Ruby runtime, RubyClass klass) {
return new RubyBigDecimal(runtime, klass);
}
};
@@ -126,7 +127,7 @@ public IRubyObject allocate(Ruby runtime, RubyClass klass) {
private static final double SQRT_10 = 3.162277660168379332;

public static RubyClass createBigDecimal(Ruby runtime) {
RubyClass bigDecimal = runtime.defineClass("BigDecimal", runtime.getNumeric(), BIGDECIMAL_ALLOCATOR);
RubyClass bigDecimal = runtime.defineClass("BigDecimal", runtime.getNumeric(), ALLOCATOR);

runtime.getKernel().defineAnnotatedMethods(BigDecimalKernelMethods.class);

@@ -217,9 +218,11 @@ public RubyBigDecimal(Ruby runtime, RubyClass klass, RubyBigDecimal rbd) {
}

public static class BigDecimalKernelMethods {
@JRubyMethod(name = "BigDecimal", rest = true, module = true, visibility = Visibility.PRIVATE)
public static IRubyObject newBigDecimal(IRubyObject recv, IRubyObject[] args) {
return RubyBigDecimal.newBigDecimal(recv, args, Block.NULL_BLOCK);
@JRubyMethod(name = "BigDecimal", required = 1, optional = 1, module = true, visibility = Visibility.PRIVATE)
public static IRubyObject newBigDecimal(ThreadContext context, IRubyObject recv, IRubyObject[] args) {
if (args.length == 1) return newInstance(context, context.runtime.getClass("BigDecimal"), args[0]);

return newInstance(context, context.runtime.getClass("BigDecimal"), args[0], args[1]);
}
}

@@ -418,14 +421,6 @@ private static String errMessageType(ThreadContext context, IRubyObject value) {
return value.getMetaClass().getBaseName();
}

private static RubyBigDecimal unableToCoerceWithoutPrec(ThreadContext context, IRubyObject value, boolean must) {
if (must) {
throw context.runtime.newArgumentError(value.getMetaClass().getBaseName() + " can't be coerced into BigDecimal without a precision");
}

return null;
}

private static RubyBigDecimal getVpValue19(ThreadContext context, IRubyObject v, boolean must) {
long precision;
if (v instanceof RubyFloat) {
@@ -454,19 +449,26 @@ private static RubyBigDecimal getVpValueWithPrec19(ThreadContext context, IRubyO
if (value instanceof RubyFloat) {
if (precision > Long.MAX_VALUE) cannotBeCoerced(context, value, must);

RubyFloat f = (RubyFloat)value;
RubyFloat f = (RubyFloat) value;
value = new RubyBigDecimal(context.runtime, BigDecimal.valueOf(f.getDoubleValue()));
continue;
} else if (value instanceof RubyRational) {
if (precision < 0) return unableToCoerceWithoutPrec(context, value, must);
}
else if (value instanceof RubyRational) {
if (precision < 0) {
if (must) {
throw context.runtime.newArgumentError(value.getMetaClass().getBaseName() + " can't be coerced into BigDecimal without a precision");
}
return null;
}

value = getVpRubyObjectWithPrec19Inner(context, (RubyRational) value, precision, must);
continue;
} else if (value instanceof RubyBigDecimal) {
}
else if (value instanceof RubyBigDecimal) {
return (RubyBigDecimal) value;
} else if (value instanceof RubyFixnum || value instanceof RubyBignum) {
String s = value.toString();
return newInstance(value.getRuntime().getClass("BigDecimal"), new IRubyObject[]{value.getRuntime().newString(s)});
}
else if (value instanceof RubyFixnum || value instanceof RubyBignum) {
return newInstance(context, context.runtime.getClass("BigDecimal"), value.asString());
}

return cannotBeCoerced(context, value, must);
@@ -476,8 +478,7 @@ private static RubyBigDecimal getVpValueWithPrec19(ThreadContext context, IRubyO
private static RubyBigDecimal getVpValue(ThreadContext context, IRubyObject value, boolean must) {
if (value instanceof RubyBigDecimal) return (RubyBigDecimal) value;
if (value instanceof RubyFixnum || value instanceof RubyBignum) {
IRubyObject str = value.callMethod(context, "to_s");
return newInstance(context.runtime.getClass("BigDecimal"), new IRubyObject[] { str });
return newInstance(context, context.runtime.getClass("BigDecimal"), value.asString());
}
return cannotBeCoerced(context, value, must);
}
@@ -487,137 +488,127 @@ public static IRubyObject induced_from(ThreadContext context, IRubyObject recv,
return getVpValue(context, arg, true);
}

private final static Pattern INFINITY_PATTERN = Pattern.compile("^([+-])?Infinity$");
private final static Pattern NUMBER_PATTERN = Pattern.compile("^([+-]?\\d*\\.?\\d*([eE][+-]?)?\\d*).*");
private static RubyBigDecimal newInstance(Ruby runtime, IRubyObject recv, RubyBigDecimal arg) {
return new RubyBigDecimal(runtime, (RubyClass) recv, arg);
}

@JRubyMethod(name = "new", required = 1, optional = 1, meta = true)
public static RubyBigDecimal newInstance(IRubyObject recv, IRubyObject[] args) {
BigDecimal decimal;
Ruby runtime = recv.getRuntime();
ThreadContext ctx = runtime.getCurrentContext();
private static RubyBigDecimal newInstance(Ruby runtime, IRubyObject recv, RubyFixnum arg, MathContext mathContext) {
return new RubyBigDecimal(runtime, (RubyClass) recv, new BigDecimal(arg.getLongValue(), mathContext));
}

if (args.length == 0) {
decimal = new BigDecimal(0);
} else {
MathContext context = MathContext.UNLIMITED;
private static RubyBigDecimal newInstance(ThreadContext context, RubyRational arg, MathContext mathContext) {
BigDecimal num = new BigDecimal(arg.numerator(context).convertToInteger().getLongValue());
BigDecimal den = new BigDecimal(arg.denominator(context).convertToInteger().getLongValue());
BigDecimal value = num.divide(den, mathContext);

if (args.length == 2) {
int digits = (int)args[1].convertToInteger().getLongValue();
if (digits < 0) {
throw runtime.newArgumentError("argument must be positive");
}
context = new MathContext(digits);
}
return new RubyBigDecimal(context.runtime, value);
}

if (runtime.is1_9()) {
if (args[0] instanceof RubyBigDecimal) {
return new RubyBigDecimal(runtime, (RubyClass)recv, ((RubyBigDecimal)args[0]));
} else if (args[0] instanceof RubyFloat || args[0] instanceof RubyRational) {
if (args.length != 2) {
// float input must be accompanied by precision
throw runtime.newArgumentError("can't omit precision for a rational");
}
private static RubyBigDecimal newInstance(Ruby runtime, IRubyObject recv, RubyFloat arg, MathContext mathContext) {
// precision can be no more than float digits
if (mathContext.getPrecision() > RubyFloat.DIG + 1) throw runtime.newArgumentError("precision too large");

if (args[0] instanceof RubyFloat) {
// precision can be no more than float digits
if (context.getPrecision() > RubyFloat.DIG + 1) {
throw runtime.newArgumentError("precision too large");
}
return new RubyBigDecimal(runtime, (RubyClass)recv, new BigDecimal(((RubyFloat)args[0]).getDoubleValue(), context));
} else {
RubyRational rat = (RubyRational)args[0];
return new RubyBigDecimal(runtime, (RubyClass) recv, new BigDecimal(arg.getDoubleValue(), mathContext));
}

BigDecimal num = new BigDecimal(rat.numerator(ctx).convertToInteger().getLongValue());
BigDecimal den = new BigDecimal(rat.denominator(ctx).convertToInteger().getLongValue());
private static RubyBigDecimal newInstance(Ruby runtime, IRubyObject recv, RubyBignum arg, MathContext mathContext) {
return new RubyBigDecimal(runtime, (RubyClass) recv, new BigDecimal(arg.getBigIntegerValue(), mathContext));
}

BigDecimal value = num.divide(den, context);
private final static Pattern NUMBER_PATTERN = Pattern.compile("^([+-]?\\d*\\.?\\d*([eE][+-]?)?\\d*).*");

return new RubyBigDecimal(runtime, value);
}
} else if (args[0] instanceof RubyFixnum) {
return new RubyBigDecimal(runtime, (RubyClass)recv, new BigDecimal(((RubyFixnum)args[0]).getLongValue(), context));
} else if (args[0] instanceof RubyBignum) {
return new RubyBigDecimal(runtime, (RubyClass)recv, new BigDecimal(((RubyBignum)args[0]).getBigIntegerValue(), context));
} else if (!runtime.is1_8()) {
context = MathContext.UNLIMITED;
}
// fall through to String coercion below
}
private static RubyBigDecimal newInstance(ThreadContext context, IRubyObject recv, IRubyObject arg, MathContext mathContext) {
String strValue = arg.convertToString().toString().trim();

String strValue = args[0].convertToString().toString();
strValue = strValue.trim();
if ("NaN".equals(strValue)) {
return newNaN(runtime);
}
switch ( strValue.length() > 2 ? strValue.charAt(0) : ' ' ) { // do not case length == 1
case 'N' :
if ( "NaN".equals(strValue) ) return newNaN(context.runtime);
case 'I' :
if ( "Infinity".equals(strValue) ) return newInfinity(context.runtime, 1);
case '-' :
if ( "-Infinity".equals(strValue) ) return newInfinity(context.runtime, -1);
case '+' :
if ( "+Infinity".equals(strValue) ) return newInfinity(context.runtime, +1);
}

Matcher m = INFINITY_PATTERN.matcher(strValue);
if (m.matches()) {
int sign = 1;
String signGroup = m.group(1);
if ("-".equals(signGroup)) {
sign = -1;
}
return newInfinity(runtime, sign);
}
// Convert String to Java understandable format (for BigDecimal).
strValue = strValue.replaceFirst("[dD]", "E"); // 1. MRI allows d and D as exponent separators
strValue = strValue.replaceAll("_", ""); // 2. MRI allows underscores anywhere
strValue = NUMBER_PATTERN.matcher(strValue).replaceFirst("$1"); // 3. MRI ignores the trailing junk

// Clean-up string representation so that it could be understood
// by Java's BigDecimal. Not terribly efficient for now.
// 1. MRI allows d and D as exponent separators
strValue = strValue.replaceFirst("[dD]", "E");
// 2. MRI allows underscores anywhere
strValue = strValue.replaceAll("_", "");
// 3. MRI ignores the trailing junk
strValue = NUMBER_PATTERN.matcher(strValue).replaceFirst("$1");
BigDecimal decimal;
try {
decimal = new BigDecimal(strValue, mathContext);
}
catch (NumberFormatException e) {
if (isOverflowExceptionMode(context.runtime)) throw context.runtime.newFloatDomainError("exponent overflow");

try {
decimal = new BigDecimal(strValue, context);
} catch(NumberFormatException e) {
if (isOverflowExceptionMode(runtime)) {
throw runtime.newFloatDomainError("exponent overflow");
}
decimal = new BigDecimal(0);
}
if (decimal.signum() == 0) {
// MRI behavior: -0 and +0 are two different things
if (strValue.matches("^\\s*-.*")) {
return newZero(runtime, -1);
} else {
return newZero(runtime, 1);
}
}
decimal = new BigDecimal(0);
}
return new RubyBigDecimal(runtime, (RubyClass)recv, decimal);

// MRI behavior: -0 and +0 are two different things
if (decimal.signum() == 0) return newZero(context.runtime, strValue.matches("^\\s*-.*") ? -1 : 1);

return new RubyBigDecimal(context.runtime, (RubyClass) recv, decimal);
}

private static RubyBigDecimal newZero(Ruby runtime, int sign) {
int zeroSign;
if (sign < 0) {
zeroSign = -1;
} else {
zeroSign = 1;
@Deprecated
public static RubyBigDecimal newInstance(IRubyObject recv, IRubyObject[] args) {
final ThreadContext context = recv.getRuntime().getCurrentContext();
switch (args.length) {
case 1: return newInstance(context, recv, args[0]);
case 2: return newInstance(context, recv, args[0], args[1]);
}
RubyBigDecimal rbd = new RubyBigDecimal(runtime, BigDecimal.ZERO, 0, zeroSign);
return rbd;
throw new IllegalArgumentException("unexpected argument count: " + args.length);
}

private static RubyBigDecimal newNaN(Ruby runtime) {
if (isNaNExceptionMode(runtime)) throw runtime.newFloatDomainError("Computation results to 'NaN'(Not a Number)");
@JRubyMethod(name = "new", meta = true)
public static RubyBigDecimal newInstance(ThreadContext context, IRubyObject recv, IRubyObject arg) {
if ( context.runtime.is1_9() ) {
if (arg instanceof RubyBigDecimal) return newInstance(context.runtime, recv, (RubyBigDecimal) arg);
if (arg instanceof RubyFloat || arg instanceof RubyRational) throw context.runtime.newArgumentError("can't omit precision for a rational");
if (arg instanceof RubyFixnum) return newInstance(context.runtime, recv, (RubyFixnum) arg, MathContext.UNLIMITED);
if (arg instanceof RubyBignum) return newInstance(context.runtime, recv, (RubyBignum) arg, MathContext.UNLIMITED);
}

RubyBigDecimal rbd = new RubyBigDecimal(runtime, BigDecimal.ZERO, true);
return rbd;
return newInstance(context, recv, arg, MathContext.UNLIMITED);
}

private static RubyBigDecimal newInfinity(Ruby runtime, int sign) {
int infinitySign;
if (sign < 0) {
infinitySign = -1;
} else {
infinitySign = 1;
@JRubyMethod(name = "new", meta = true)
public static RubyBigDecimal newInstance(ThreadContext context, IRubyObject recv, IRubyObject arg, IRubyObject mathArg) {
int digits = (int) mathArg.convertToInteger().getLongValue();
if (digits < 0) throw context.runtime.newArgumentError("argument must be positive");

MathContext mathContext = new MathContext(digits);

if ( context.runtime.is1_9() ) {
if (arg instanceof RubyBigDecimal) return newInstance(context.runtime, recv, (RubyBigDecimal) arg);
if (arg instanceof RubyFloat) return newInstance(context.runtime, recv, (RubyFloat) arg, mathContext);
if (arg instanceof RubyRational) return newInstance(context, (RubyRational) arg, mathContext);
if (arg instanceof RubyFixnum) return newInstance(context.runtime, recv, (RubyFixnum) arg, mathContext);
if (arg instanceof RubyBignum) return newInstance(context.runtime, recv, (RubyBignum) arg, mathContext);
mathContext = MathContext.UNLIMITED;
}
RubyBigDecimal rbd = new RubyBigDecimal(runtime, BigDecimal.ZERO, infinitySign);
if (isInfinityExceptionMode(runtime)) throw runtime.newFloatDomainError("Computation results to 'Infinity'");

return rbd;
return newInstance(context, recv, arg, mathContext);
}

private static RubyBigDecimal newZero(final Ruby runtime, final int sign) {
return new RubyBigDecimal(runtime, BigDecimal.ZERO, 0, sign < 0 ? -1 : 1);
}

private static RubyBigDecimal newNaN(Ruby runtime) {
if ( isNaNExceptionMode(runtime) ) {
throw runtime.newFloatDomainError("Computation results to 'NaN'(Not a Number)");
}
return new RubyBigDecimal(runtime, BigDecimal.ZERO, true);
}

private static RubyBigDecimal newInfinity(final Ruby runtime, final int sign) {
if ( isInfinityExceptionMode(runtime) ) {
throw runtime.newFloatDomainError("Computation results to 'Infinity'");
}
return new RubyBigDecimal(runtime, BigDecimal.ZERO, sign < 0 ? -1 : 1);
}

private RubyBigDecimal setResult() {
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