/** int_chr */
@JRubyMethod(name = "chr", compat = CompatVersion.RUBY1_8)
public RubyString chr(ThreadContext context) {
Ruby runtime = context.getRuntime();
long value = getLongValue();
if (value < 0 || value > 0xff)
throw runtime.newRangeError(this.toString() + " out of char range");
return RubyString.newStringShared(runtime, SINGLE_CHAR_BYTELISTS[(int) value]);
}
@JRubyMethod(name = "chr", compat = CompatVersion.RUBY1_9)
public RubyString chr19(ThreadContext context, IRubyObject arg) {
Ruby runtime = context.getRuntime();
long value = getLongValue();
Encoding enc = arg.convertToString().toEncoding(runtime);
int n;
if (value < 0 || (n = StringSupport.codeLength(runtime, enc, (int) value)) <= 0) {
throw runtime.newRangeError(this.toString() + " out of char range");
}
ByteList bytes = new ByteList(n);
enc.codeToMbc((int) value, bytes.getUnsafeBytes(), 0);
bytes.setRealSize(n);
return RubyString.newStringNoCopy(runtime, bytes, enc, 0);
}
private ByteList fromEncodedBytes(Ruby runtime, Encoding enc, int value) {
int n;
try {
n = value < 0 ? 0 : enc.codeToMbcLength(value);
} catch (EncodingException ee) {
n = 0;
}
if (n <= 0) throw runtime.newRangeError(this.toString() + " out of char range");
ByteList bytes = new ByteList(n);
enc.codeToMbc(value, bytes.getUnsafeBytes(), 0);
bytes.setRealSize(n);
return bytes;
}
@JRubyMethod(name = "chr", compat = CompatVersion.RUBY1_9)
public RubyString chr19(ThreadContext context) {
Ruby runtime = context.runtime;
int value = (int) getLongValue();
if (value >= 0 && value <= 0xFF) {
ByteList bytes = SINGLE_CHAR_BYTELISTS19[value];
return RubyString.newStringShared(runtime, bytes, bytes.getEncoding());
} else {
Encoding enc = runtime.getDefaultInternalEncoding();
if (value > 0xFF && (enc == null || enc == ASCIIEncoding.INSTANCE)) {
throw runtime.newRangeError(this.toString() + " out of char range");
} else {
if (enc == null) enc = USASCIIEncoding.INSTANCE;
return RubyString.newStringNoCopy(
runtime, fromEncodedBytes(runtime, enc, (int) value), enc, 0);
}
}
}
@JRubyMethod(name = "to_a", frame = true)
public IRubyObject to_a(ThreadContext context, final Block block) {
final Ruby runtime = context.getRuntime();
if (begin instanceof RubyFixnum && end instanceof RubyFixnum) {
long lim = ((RubyFixnum) end).getLongValue();
if (!isExclusive) lim++;
long base = ((RubyFixnum) begin).getLongValue();
long size = lim - base;
if (size > Integer.MAX_VALUE) {
throw runtime.newRangeError("Range size too large for to_a");
}
IRubyObject[] array = new IRubyObject[(int) size];
for (int i = 0; i < size; i++) {
array[i] = RubyFixnum.newFixnum(runtime, base + i);
}
return RubyArray.newArrayNoCopy(runtime, array);
} else {
return RubyEnumerable.to_a(context, this);
}
}