/** do_coerce */
protected final RubyArray doCoerce(ThreadContext context, IRubyObject other, boolean err) {
if (!other.respondsTo("coerce")) {
if (err) {
coerceRescue(context, other);
}
return null;
}
final Ruby runtime = context.runtime;
final IRubyObject $ex = context.getErrorInfo();
final IRubyObject result;
try {
result = coerceBody(context, other);
} catch (RaiseException e) { // e.g. NoMethodError: undefined method `coerce'
if (e.getException().kind_of_p(context, runtime.getStandardError()).isTrue()) {
context.setErrorInfo($ex); // restore $!
RubyWarnings warnings = context.runtime.getWarnings();
warnings.warn("Numerical comparison operators will no more rescue exceptions of #coerce");
warnings.warn("in the next release. Return nil in #coerce if the coercion is impossible.");
if (err) {
coerceFailed(context, other);
}
return null;
} else {
throw e;
}
}
return coerceResult(runtime, result, err);
}
private static IRubyObject callCmpMethod(
ThreadContext context, IRubyObject recv, IRubyObject other, IRubyObject returnValueOnError) {
Ruby runtime = context.runtime;
if (recv == other) return runtime.getTrue();
try {
IRubyObject result = invokedynamic(context, recv, OP_CMP, other);
// This is only to prevent throwing exceptions by cmperr - it has poor performance
if (result.isNil()) {
return returnValueOnError;
}
return RubyBoolean.newBoolean(runtime, cmpint(context, result, recv, other) == 0);
} catch (RaiseException e) {
if (e.getException().kind_of_p(context, runtime.getStandardError()).isTrue()) {
// clear error info resulting from failure to compare (JRUBY-3292)
context.setErrorInfo(runtime.getNil());
return returnValueOnError;
} else {
throw e;
}
}
}
/** Create the Zlib module and add it to the Ruby runtime. */
public static RubyModule createZlibModule(Ruby runtime) {
RubyModule result = runtime.defineModule("Zlib");
RubyClass gzfile =
result.defineClassUnder("GzipFile", runtime.getObject(), RubyGzipFile.GZIPFILE_ALLOCATOR);
gzfile.defineAnnotatedMethods(RubyGzipFile.class);
RubyClass gzreader =
result.defineClassUnder("GzipReader", gzfile, RubyGzipReader.GZIPREADER_ALLOCATOR);
gzreader.includeModule(runtime.getEnumerable());
gzreader.defineAnnotatedMethods(RubyGzipReader.class);
RubyClass standardError = runtime.getStandardError();
RubyClass zlibError =
result.defineClassUnder("Error", standardError, standardError.getAllocator());
gzreader.defineClassUnder("Error", zlibError, zlibError.getAllocator());
RubyClass gzwriter =
result.defineClassUnder("GzipWriter", gzfile, RubyGzipWriter.GZIPWRITER_ALLOCATOR);
gzwriter.defineAnnotatedMethods(RubyGzipWriter.class);
result.defineConstant("ZLIB_VERSION", runtime.newString("1.2.1"));
result.defineConstant("VERSION", runtime.newString("0.6.0"));
result.defineConstant("BINARY", runtime.newFixnum(0));
result.defineConstant("ASCII", runtime.newFixnum(1));
result.defineConstant("UNKNOWN", runtime.newFixnum(2));
result.defineConstant("DEF_MEM_LEVEL", runtime.newFixnum(8));
result.defineConstant("MAX_MEM_LEVEL", runtime.newFixnum(9));
result.defineConstant("OS_UNIX", runtime.newFixnum(3));
result.defineConstant("OS_UNKNOWN", runtime.newFixnum(255));
result.defineConstant("OS_CODE", runtime.newFixnum(11));
result.defineConstant("OS_ZSYSTEM", runtime.newFixnum(8));
result.defineConstant("OS_VMCMS", runtime.newFixnum(4));
result.defineConstant("OS_VMS", runtime.newFixnum(2));
result.defineConstant("OS_RISCOS", runtime.newFixnum(13));
result.defineConstant("OS_MACOS", runtime.newFixnum(7));
result.defineConstant("OS_OS2", runtime.newFixnum(6));
result.defineConstant("OS_AMIGA", runtime.newFixnum(1));
result.defineConstant("OS_QDOS", runtime.newFixnum(12));
result.defineConstant("OS_WIN32", runtime.newFixnum(11));
result.defineConstant("OS_ATARI", runtime.newFixnum(5));
result.defineConstant("OS_MSDOS", runtime.newFixnum(0));
result.defineConstant("OS_CPM", runtime.newFixnum(9));
result.defineConstant("OS_TOPS20", runtime.newFixnum(10));
result.defineConstant("DEFAULT_STRATEGY", runtime.newFixnum(0));
result.defineConstant("FILTERED", runtime.newFixnum(1));
result.defineConstant("HUFFMAN_ONLY", runtime.newFixnum(2));
result.defineConstant("NO_FLUSH", runtime.newFixnum(0));
result.defineConstant("SYNC_FLUSH", runtime.newFixnum(2));
result.defineConstant("FULL_FLUSH", runtime.newFixnum(3));
result.defineConstant("FINISH", runtime.newFixnum(4));
result.defineConstant("NO_COMPRESSION", runtime.newFixnum(0));
result.defineConstant("BEST_SPEED", runtime.newFixnum(1));
result.defineConstant("DEFAULT_COMPRESSION", runtime.newFixnum(-1));
result.defineConstant("BEST_COMPRESSION", runtime.newFixnum(9));
result.defineConstant("MAX_WBITS", runtime.newFixnum(15));
result.defineAnnotatedMethods(RubyZlib.class);
result.defineClassUnder("StreamEnd", zlibError, zlibError.getAllocator());
result.defineClassUnder("StreamError", zlibError, zlibError.getAllocator());
result.defineClassUnder("BufError", zlibError, zlibError.getAllocator());
result.defineClassUnder("NeedDict", zlibError, zlibError.getAllocator());
result.defineClassUnder("MemError", zlibError, zlibError.getAllocator());
result.defineClassUnder("VersionError", zlibError, zlibError.getAllocator());
result.defineClassUnder("DataError", zlibError, zlibError.getAllocator());
RubyClass gzError = gzfile.defineClassUnder("Error", zlibError, zlibError.getAllocator());
gzfile.defineClassUnder("CRCError", gzError, gzError.getAllocator());
gzfile.defineClassUnder("NoFooter", gzError, gzError.getAllocator());
gzfile.defineClassUnder("LengthError", gzError, gzError.getAllocator());
// ZStream actually *isn't* allocatable
RubyClass zstream =
result.defineClassUnder(
"ZStream", runtime.getObject(), ObjectAllocator.NOT_ALLOCATABLE_ALLOCATOR);
zstream.defineAnnotatedMethods(ZStream.class);
zstream.undefineMethod("new");
RubyClass infl = result.defineClassUnder("Inflate", zstream, Inflate.INFLATE_ALLOCATOR);
infl.defineAnnotatedMethods(Inflate.class);
RubyClass defl = result.defineClassUnder("Deflate", zstream, Deflate.DEFLATE_ALLOCATOR);
defl.defineAnnotatedMethods(Deflate.class);
runtime
.getKernel()
.callMethod(runtime.getCurrentContext(), "require", runtime.newString("stringio"));
return result;
}