jbarnette / johnson

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Johnson wraps JavaScript in a loving Ruby embrace. — Read more

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14.

-1 votes

Problems with unicode strings
10 comments Created 3 months ago by Mask

Title

Body
Unicode javascript strings are not transferred to ruby correctly. Here's an example. I create a javascript string consisting of a single Euro-Sign (see http://www.fileformat.info/info/unicode/char/20ac/index.htm) irb(main):001:0> require 'rubygems' => true irb(main):002:0> require 'johnson' => true irb(main):007:0> s = Johnson.evaluate("'\\u20AC'") => "\254" In ruby, we're getting a single byte with the value 254 (octal), which is 172 decimal, or 0xAC. So it looks like we're only getting the low-byte of our 16-bit Unicode char. After scanning the Johnson code, I think I found the culprit - JS_GetStringBytes returns the bytes of a Unicode-16 String by stripping off the high-bytes. > Note that for non-ASCII strings, if JS_CStringsAreUTF8 is false, these functions can return a > corrupted copy of the contents of >the string. Use JS_GetStringChars to access the 16-bit > characters of a JavaScript string without conversions or copying. A similar problem probably exists in the other direction (ruby -> js) too. I suggest trying JS_CStringsAreUTF8 (which may solve both problems). If this fails, then johnson would have to extract the Unicode-16 chars from spidermonkey and convert them to a ruby-friendly encoding.
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Unicode javascript strings are not transferred to ruby correctly. Here's an example. I create a javascript string consisting of a single Euro-Sign (see http://www.fileformat.info/info/unicode/char/20ac/index.htm)
```
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'johnson'
=> true
irb(main):007:0> s = Johnson.evaluate("'\\u20AC'")
=> "\254"
```
In ruby, we're getting a single byte with the value 254 (octal), which is 172 decimal, or 0xAC. So it looks like we're only getting the low-byte of our 16-bit Unicode char. After scanning the Johnson code, I think I found the culprit - JS_GetStringBytes returns the bytes of a Unicode-16 String by stripping off the high-bytes.

Note that for non-ASCII strings, if JS_CStringsAreUTF8 is false, these functions can return a corrupted copy of the contents of >the string. Use JS_GetStringChars to access the 16-bit characters of a JavaScript string without conversions or copying.

A similar problem probably exists in the other direction (ruby -> js) too.

I suggest trying JS_CStringsAreUTF8 (which may solve both problems). If this fails, then johnson would have to extract the Unicode-16 chars from spidermonkey and convert them to a ruby-friendly encoding.
Comments
Mask Mon Sep 21 03:29:50 -0700 2009 | link

Note: this issue has also been posted at https://johnson.lighthouseapp.com/projects/8759-johnson/tickets/52

Comment
Note: this issue has also been posted at https://johnson.lighthouseapp.com/projects/8759-johnson/tickets/52
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matthewd Fri Sep 25 11:12:54 -0700 2009 | link
2a316a5:

irb(main):006:0> Johnson.evaluate("'\\u20AC'") => "\342\202\254"
Comment
2a316a52d65ec7c9d9c49cd45ca8414e376eae30: irb(main):006:0> Johnson.evaluate("'\\u20AC'") => "\342\202\254"
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Mask Thu Oct 01 03:57:03 -0700 2009 | link
Not quite sure what's going wrong here, but:

irb(main):018:0> Johnson.evaluate("'A'") => "\344\204\200"

This, of course, should be "A"
Comment
Not quite sure what's going wrong here, but: irb(main):018:0> Johnson.evaluate("'A'") => "\344\204\200" This, of course, should be "A"
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matthewd Thu Oct 01 06:17:45 -0700 2009 | link

Hrmm. That's the UTF-8 encoding \u4100, rather than \u0041... but the same line for me returns "A".

My previous commit also means you now can't pass non-UTF-8 ruby strings into JS, because of the conversion step -- which isn't brilliant.

Perhaps the best move would be to put it back how it was before, and recommend use of UTF-8 in the JS environment? I'll look at how easily we can add -DJS_C_STRINGS_ARE_UTF8 to our SM build process.

Comment
Hrmm. That's the UTF-8 encoding \u4100, rather than \u0041... but the same line for me returns "A". My previous commit also means you now can't pass non-UTF-8 ruby strings into JS, because of the conversion step -- which isn't brilliant. Perhaps the best move would be to put it back how it was before, and recommend use of UTF-8 in the JS environment? I'll look at how easily we can add -DJS_C_STRINGS_ARE_UTF8 to our SM build process.
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matthewd Thu Oct 01 07:39:24 -0700 2009 | link

Well, that just moves the encoding step into SpiderMonkey... which leaves us with the same problem.

It's starting to feel like as long as ruby isn't tracking the encoding of a string (read: 1.8), we can't really interoperate with JS using the high byte in its characters... or at least, not with correct round-tripping.

The only other option that comes to mind at the moment would be to stop doing the native conversion, and instead proxy strings in each direction until we /really/ have to convert. That would also give JS the ability to modify Ruby strings, which it currently lacks.

Comment
Well, that just moves the encoding step into SpiderMonkey... which leaves us with the same problem. It's starting to feel like as long as ruby isn't tracking the encoding of a string (read: 1.8), we can't really interoperate with JS using the high byte in its characters... or at least, not with correct round-tripping. The only other option that comes to mind at the moment would be to stop doing the native conversion, and instead proxy strings in each direction until we /really/ have to convert. That would also give JS the ability to modify Ruby strings, which it currently lacks.
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Mask Thu Oct 01 23:57:26 -0700 2009 | link
I wonder why the string conversion works differently for me. Some difference in the environment?

martin@haiku-2 ~/dev/johnson $ ruby -v ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-darwin9] martin@haiku-2 ~/dev/johnson $ uname -a Darwin haiku-2.local 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386
Comment
I wonder why the string conversion works differently for me. Some difference in the environment? martin@haiku-2 ~/dev/johnson $ ruby -v ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-darwin9] martin@haiku-2 ~/dev/johnson $ uname -a Darwin haiku-2.local 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386
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Mask Fri Oct 02 00:21:30 -0700 2009 | link
in ruby_land_proxy.rb, I changed "UTF-16" to "UCS-2-INTERNAL":

JavaScriptToRuby = Iconv.open('UTF-8', 'UCS-2-INTERNAL') RubyToJavaScript = Iconv.open('UCS-2-INTERNAL', 'UTF-8')

This seems to fix the problem - now all tests pass on my machine. According to the libiconv docs, UCS-2-INTERNAL means "Full Unicode ...with machine dependent endianness and alignment", so I guess this makes sense.
Comment
in ruby_land_proxy.rb, I changed "UTF-16" to "UCS-2-INTERNAL": JavaScriptToRuby = Iconv.open('UTF-8', 'UCS-2-INTERNAL') RubyToJavaScript = Iconv.open('UCS-2-INTERNAL', 'UTF-8') This seems to fix the problem - now all tests pass on my machine. According to the libiconv docs, UCS-2-INTERNAL means "Full Unicode ...with machine dependent endianness and alignment", so I guess this makes sense.
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Mask Fri Oct 02 02:17:33 -0700 2009 | link

I just tried this on debian/lenny: UCS-2-INTERNAL isn't available here...sigh.

Using UCS-2LE (little-endian) works on both my machines (Mac/Intel und Debian/Intel), but probably won't on big-endian plattforms. Looks like we'll need a compile-time #ifdef here.

Or maybe we should let spidermonkey do the UCS-2 to UTF-8 translation for us. That way, no endien-dependent strings will leave spidermonkey.

Comment
I just tried this on debian/lenny: UCS-2-INTERNAL isn't available here...sigh. Using UCS-2LE (little-endian) works on both my machines (Mac/Intel und Debian/Intel), but probably won't on big-endian plattforms. Looks like we'll need a compile-time #ifdef here. Or maybe we should let spidermonkey do the UCS-2 to UTF-8 translation for us. That way, no endien-dependent strings will leave spidermonkey.
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matthewd Fri Oct 02 08:46:38 -0700 2009 | link

Okay, I've just pushed a change to use JS_SetCStringsAreUTF8() and friends to let SpiderMonkey do the conversion. As you say, that should cover any endianness issues.

It does still leave the issue that non-utf-8 strings (e.g., binary data) cannot be passed from Ruby to JS.

Comment
Okay, I've just pushed a change to use JS_SetCStringsAreUTF8() and friends to let SpiderMonkey do the conversion. As you say, that should cover any endianness issues. It does still leave the issue that non-utf-8 strings (e.g., binary data) cannot be passed from Ruby to JS.
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Mask Fri Oct 02 10:25:39 -0700 2009 | link

I personally don't think this is an issue. Trying to store binary data in a javascript string is generally a bad idea. A javascript string is simply not an array of bytes. At the latest, when manipulating (concatenation or substr), spidermonkey will garble non-textual data.

The javascript standard even defines strings as 16-bit textual data. This is also spidermonkey's internal representation.

The closest you can get to an array-of-bytes in javascript is an array-of-numbers. This, of course, would not let you manipulate raw pixel data or anything....

Comment
I personally don't think this is an issue. Trying to store binary data in a javascript string is generally a bad idea. A javascript string is simply not an array of bytes. At the latest, when manipulating (concatenation or substr), spidermonkey will garble non-textual data. The javascript standard even defines strings as 16-bit textual data. This is also spidermonkey's internal representation. The closest you can get to an array-of-bytes in javascript is an array-of-numbers. This, of course, would not let you manipulate raw pixel data or anything....
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7.

0 votes

jbarnette
x

to_json issues
0 comments Created 6 months ago by jbarnette

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Body
See https://johnson.lighthouseapp.com/projects/8759/tickets/51
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See https://johnson.lighthouseapp.com/projects/8759/tickets/51

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11.

0 votes

jbarnette
x

Large arithmetic expressions overflow
3 comments Created 4 months ago by tarcieri

Title

Body
<pre><code>>> Johnson::Parser.parse "1000 * 60 * 60 * 24 * 30" => [[:lit, -2147483648]] </code></pre>
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```
>> Johnson::Parser.parse "1000 * 60 * 60 * 24 * 30"
=> [[:lit, -2147483648]]
```
Comments

jbarnette Mon Aug 17 16:12:20 -0700 2009 | link

Argh, good catch. This constant folding may be happening in SpiderMonkey's parser. If it's in the translation bits on our side, what do you think would be the least surprising behavior? Bignum?

Comment
Argh, good catch. This constant folding may be happening in SpiderMonkey's parser. If it's in the translation bits on our side, what do you think would be the least surprising behavior? Bignum?
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tarcieri Mon Aug 17 16:30:16 -0700 2009 | link

Yes, Bignum would be fine. We're just round-tripping everything while doing some AST munging, so as long as what goes in comes out I don't really care what the intermediate representation is.

Comment
Yes, Bignum would be fine. We're just round-tripping everything while doing some AST munging, so as long as what goes in comes out I don't really care what the intermediate representation is.
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jbarnette Mon Aug 17 16:50:40 -0700 2009 | link

Okay, Aaron and I are doing a quick round of blameshifting, and then we'll see what we can do about this. In the meantime, a patch (even if it's just a failing testcase) is most welcome. :)

Comment
Okay, Aaron and I are doing a quick round of blameshifting, and then we'll see what we can do about this. In the meantime, a patch (even if it's just a failing testcase) is most welcome. :)
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17.

0 votes

Cannot Install Gem on Solaris
3 comments Created 2 months ago by shwoodard

Title

Body
Are there any dependencies that I am forgetting? Here is the error, ERROR: Error installing johnson: ERROR: Failed to build gem native extension. /opt/ruby-enterprise-1.8.7-20090928/bin/ruby extconf.rb make: Fatal error in reader: config.mk, line 41: Unexpected end of line seen *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/opt/ruby-enterprise-1.8.7-20090928/bin/ruby extconf.rb:25:in `<<': can't convert nil into String (TypeError) from extconf.rb:25
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Are there any dependencies that I am forgetting? Here is the error,

ERROR: Error installing johnson:
```
    ERROR: Failed to build gem native extension.
```
/opt/ruby-enterprise-1.8.7-20090928/bin/ruby extconf.rb make: Fatal error in reader: config.mk, line 41: Unexpected end of line seen
extconf.rb failed Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
```
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/opt/ruby-enterprise-1.8.7-20090928/bin/ruby
```
extconf.rb:25:in `<<': can't convert nil into String (TypeError)
```
    from extconf.rb:25
```
Comments

jbarnette Sat Oct 10 13:11:31 -0700 2009 | link

As far as I know, you're the first person to even try compiling Johnson on Solaris, especially with REE. :) The devs are all on Mac OS X or Linux. Line 25, the one with the error, is manipulating an extconf global variable that should certainly exist.

We currently bundle (and statically link) SpiderMonkey with Johnson's native extension, so it's probably not a missing dependency.

I'd try playing with extconf.rb: you can re-run it from the ext/spidermonkey directory (ruby extconf.rb) to regenerate a Makefile.

Comment
As far as I know, you're the first person to even **try** compiling Johnson on Solaris, especially with REE. :) The devs are all on Mac OS X or Linux. Line 25, the one with the error, is manipulating an extconf global variable that should certainly exist. We currently bundle (and statically link) SpiderMonkey with Johnson's native extension, so it's probably not a missing dependency. I'd try playing with extconf.rb: you can re-run it from the ext/spidermonkey directory (ruby extconf.rb) to regenerate a Makefile.
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shwoodard Sun Oct 11 09:52:24 -0700 2009 | link

If I can successfully install spidermonkey, can I remove the vendor folder of the gem and use the install software on the system? What would I need to change in the gem?

Thanks,
Sam

Comment
If I can successfully install spidermonkey, can I remove the vendor folder of the gem and use the install software on the system? What would I need to change in the gem? Thanks, Sam
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shwoodard Mon Oct 12 13:52:12 -0700 2009 | link

I have successfully built and installed spidermonkey on solaris. Can I build the johnson gem to point to this rather than the version in vendor/spidermonkey?

Comment
I have successfully built and installed spidermonkey on solaris. Can I build the johnson gem to point to this rather than the version in vendor/spidermonkey?
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18.

0 votes

Can't Build On Snow Leopard
1 comment Created 2 months ago by grkpfl

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Body
Hello, Please help me: $ sudo gem install johnson Building native extensions. This could take a while... ERROR: Error installing johnson: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb cat: ../../dist/Darwin_DBG.OBJ/nspr/Version: No such file or directory cd editline; make -f Makefile.ref all cc -o Darwin_DBG.OBJ/editline.o -c -Wall -Wno-format -MMD -DXP_UNIX -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DJSFILE -DANSI_ARROWS -DHAVE_TCGETATTR -DHIDE -DUSE_DIRENT -DSYS_UNIX -DHAVE_STDLIB -DUNIQUE_HISTORY editline.c editline.c: In function ‘readline’: editline.c:1038: warning: implicit declaration of function ‘getpid’ editline.c: In function ‘add_history’: editline.c:1051: warning: pointer targets in passing argument 2 of ‘strcmp’ differ in signedness cc -o Darwin_DBG.OBJ/sysunix.o -c -Wall -Wno-format -MMD -DXP_UNIX -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DJSFILE -DANSI_ARROWS -DHAVE_TCGETATTR -DHIDE -DUSE_DIRENT -DSYS_UNIX -DHAVE_STDLIB -DUNIQUE_HISTORY sysunix.c ar rv Darwin_DBG.OBJ/libedit.a Darwin_DBG.OBJ/editline.o Darwin_DBG.OBJ/sysunix.o r - Darwin_DBG.OBJ/editline.o r - Darwin_DBG.OBJ/sysunix.o ranlib Darwin_DBG.OBJ/libedit.a make -f Makefile.ref Darwin_DBG.OBJ/libjs.a Darwin_DBG.OBJ/libjs.dylib Darwin_DBG.OBJ/js Darwin_DBG.OBJ/jsautocfg.h Darwin_DBG.OBJ/jscpucfg Darwin_DBG.OBJ/jscpucfg.o cat: ../../dist/Darwin_DBG.OBJ/nspr/Version: No such file or directory make[1]: Circular jscpucfg.h <- Darwin_DBG.OBJ/jsautocfg.h dependency dropped. cc -o Darwin_DBG.OBJ/jscpucfg.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jscpucfg.c cc -o Darwin_DBG.OBJ/jscpucfg Darwin_DBG.OBJ/jscpucfg.o make[1]: Circular Darwin_DBG.OBJ/jsautocfg.h <- Darwin_DBG.OBJ/jsautocfg.h dependency dropped. rm -f Darwin_DBG.OBJ/jsautocfg.h Darwin_DBG.OBJ/jscpucfg > Darwin_DBG.OBJ/jsautocfg.h cc -o Darwin_DBG.OBJ/jsapi.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsapi.c jsapi.c: In function ‘JS_ConvertArgumentsVA’: jsapi.c:272: warning: passing argument 5 of ‘TryArgumentFormatter’ from incompatible pointer type jsapi.c: In function ‘JS_PushArgumentsVA’: jsapi.c:380: warning: passing argument 5 of ‘TryArgumentFormatter’ from incompatible pointer type cc -o Darwin_DBG.OBJ/jsarena.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsarena.c cc -o Darwin_DBG.OBJ/jsarray.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsarray.c cc -o Darwin_DBG.OBJ/jsatom.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsatom.c cc -o Darwin_DBG.OBJ/jsbool.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsbool.c cc -o Darwin_DBG.OBJ/jscntxt.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jscntxt.c cc -o Darwin_DBG.OBJ/jsdate.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdate.c cc -o Darwin_DBG.OBJ/jsdbgapi.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdbgapi.c cc -o Darwin_DBG.OBJ/jsdhash.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdhash.c cc -o Darwin_DBG.OBJ/jsdtoa.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdtoa.c cc -o Darwin_DBG.OBJ/jsemit.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsemit.c cc -o Darwin_DBG.OBJ/jsexn.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsexn.c cc -o Darwin_DBG.OBJ/jsfun.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsfun.c cc -o Darwin_DBG.OBJ/jsgc.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsgc.c cc -o Darwin_DBG.OBJ/jshash.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jshash.c cc -o Darwin_DBG.OBJ/jsinterp.o -c -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsinterp.c cc -o Darwin_DBG.OBJ/jsinvoke.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsinvoke.c cc -o Darwin_DBG.OBJ/jsiter.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsiter.c cc -o Darwin_DBG.OBJ/jslock.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jslock.c cc -o Darwin_DBG.OBJ/jslog2.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jslog2.c cc -o Darwin_DBG.OBJ/jslong.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jslong.c cc -o Darwin_DBG.OBJ/jsmath.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsmath.c cc -o Darwin_DBG.OBJ/jsnum.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsnum.c cc -o Darwin_DBG.OBJ/jsobj.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsobj.c cc -o Darwin_DBG.OBJ/jsopcode.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsopcode.c cc -o Darwin_DBG.OBJ/jsparse.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsparse.c cc -o Darwin_DBG.OBJ/jsprf.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsprf.c jsprf.c: In function ‘BuildArgArray’: jsprf.c:644: error: incompatible types in assignment make[1]: *** [Darwin_DBG.OBJ/jsprf.o] Error 1 make: *** [all] Error 2 *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb:26:in `<<': can't convert nil into String (TypeError) from extconf.rb:26 Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/johnson-1.1.2 for inspection. Results logged to /Library/Ruby/Gems/1.8/gems/johnson-1.1.2/ext/spidermonkey/gem_make.out
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Hello, Please help me:

$ sudo gem install johnson Building native extensions. This could take a while...
ERROR: Error installing johnson:
```
ERROR: Failed to build gem native extension.
```
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb cat: ../../dist/Darwin_DBG.OBJ/nspr/Version: No such file or directory
cd editline; make -f Makefile.ref all
cc -o Darwin_DBG.OBJ/editline.o -c -Wall -Wno-format -MMD -DXP_UNIX -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DJSFILE -DANSI_ARROWS -DHAVE_TCGETATTR -DHIDE -DUSE_DIRENT -DSYS_UNIX -DHAVE_STDLIB -DUNIQUE_HISTORY editline.c
editline.c: In function ‘readline’:
editline.c:1038: warning: implicit declaration of function ‘getpid’
editline.c: In function ‘add_history’:
editline.c:1051: warning: pointer targets in passing argument 2 of ‘strcmp’ differ in signedness
cc -o Darwin_DBG.OBJ/sysunix.o -c -Wall -Wno-format -MMD -DXP_UNIX -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DJSFILE -DANSI_ARROWS -DHAVE_TCGETATTR -DHIDE -DUSE_DIRENT -DSYS_UNIX -DHAVE_STDLIB -DUNIQUE_HISTORY sysunix.c
ar rv Darwin_DBG.OBJ/libedit.a Darwin_DBG.OBJ/editline.o Darwin_DBG.OBJ/sysunix.o
r - Darwin_DBG.OBJ/editline.o
r - Darwin_DBG.OBJ/sysunix.o
ranlib Darwin_DBG.OBJ/libedit.a
make -f Makefile.ref Darwin_DBG.OBJ/libjs.a Darwin_DBG.OBJ/libjs.dylib Darwin_DBG.OBJ/js Darwin_DBG.OBJ/jsautocfg.h Darwin_DBG.OBJ/jscpucfg Darwin_DBG.OBJ/jscpucfg.o
cat: ../../dist/Darwin_DBG.OBJ/nspr/Version: No such file or directory
make[1]: Circular jscpucfg.h <- Darwin_DBG.OBJ/jsautocfg.h dependency dropped.
cc -o Darwin_DBG.OBJ/jscpucfg.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jscpucfg.c
cc -o Darwin_DBG.OBJ/jscpucfg Darwin_DBG.OBJ/jscpucfg.o
make[1]: Circular Darwin_DBG.OBJ/jsautocfg.h <- Darwin_DBG.OBJ/jsautocfg.h dependency dropped.
rm -f Darwin_DBG.OBJ/jsautocfg.h
Darwin_DBG.OBJ/jscpucfg > Darwin_DBG.OBJ/jsautocfg.h
cc -o Darwin_DBG.OBJ/jsapi.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsapi.c
jsapi.c: In function ‘JS_ConvertArgumentsVA’:
jsapi.c:272: warning: passing argument 5 of ‘TryArgumentFormatter’ from incompatible pointer type
jsapi.c: In function ‘JS_PushArgumentsVA’:
jsapi.c:380: warning: passing argument 5 of ‘TryArgumentFormatter’ from incompatible pointer type
cc -o Darwin_DBG.OBJ/jsarena.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsarena.c
cc -o Darwin_DBG.OBJ/jsarray.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsarray.c
cc -o Darwin_DBG.OBJ/jsatom.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsatom.c
cc -o Darwin_DBG.OBJ/jsbool.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsbool.c
cc -o Darwin_DBG.OBJ/jscntxt.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jscntxt.c
cc -o Darwin_DBG.OBJ/jsdate.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdate.c
cc -o Darwin_DBG.OBJ/jsdbgapi.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdbgapi.c
cc -o Darwin_DBG.OBJ/jsdhash.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdhash.c
cc -o Darwin_DBG.OBJ/jsdtoa.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsdtoa.c
cc -o Darwin_DBG.OBJ/jsemit.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsemit.c
cc -o Darwin_DBG.OBJ/jsexn.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsexn.c
cc -o Darwin_DBG.OBJ/jsfun.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsfun.c
cc -o Darwin_DBG.OBJ/jsgc.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsgc.c
cc -o Darwin_DBG.OBJ/jshash.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jshash.c
cc -o Darwin_DBG.OBJ/jsinterp.o -c -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsinterp.c
cc -o Darwin_DBG.OBJ/jsinvoke.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsinvoke.c
cc -o Darwin_DBG.OBJ/jsiter.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsiter.c
cc -o Darwin_DBG.OBJ/jslock.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jslock.c
cc -o Darwin_DBG.OBJ/jslog2.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jslog2.c
cc -o Darwin_DBG.OBJ/jslong.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jslong.c
cc -o Darwin_DBG.OBJ/jsmath.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsmath.c
cc -o Darwin_DBG.OBJ/jsnum.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsnum.c
cc -o Darwin_DBG.OBJ/jsobj.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsobj.c
cc -o Darwin_DBG.OBJ/jsopcode.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsopcode.c
cc -o Darwin_DBG.OBJ/jsparse.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsparse.c
cc -o Darwin_DBG.OBJ/jsprf.o -c -Wall -Wno-format -MMD -g3 -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DX86_LINUX -DDEBUG -DDEBUG_root -DEDITLINE -IDarwin_DBG.OBJ jsprf.c
jsprf.c: In function ‘BuildArgArray’:
jsprf.c:644: error: incompatible types in assignment
make[1]: [Darwin_DBG.OBJ/jsprf.o] Error 1
make: [all] Error 2
extconf.rb failed Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
```
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
```
extconf.rb:26:in `<<': can't convert nil into String (TypeError)
```
from extconf.rb:26
```
Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/johnson-1.1.2 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/johnson-1.1.2/ext/spidermonkey/gem_make.out
Comments

smparkes Fri Nov 13 14:23:47 -0800 2009 | link

You could try my fork: http://github.com/smparkes/johnson. I build on OS X, both 32 bit and 64 bit.

Comment
You could try my fork: http://github.com/smparkes/johnson. I build on OS X, both 32 bit and 64 bit.
or cancel

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