Pike-devel May 2008

pike-devel@lists.lysator.liu.se

10 participants
55 discussions

Spear !
by PeterPan 06 May '08

06 May '08

Hi! Pike team. I hooked Pike's compile_string() and compile_file(), and got a "new" language. I named it "Spear". In Spear, you can embed C code in Pike, and reference the variables each other. see the example: $ cat hello.spear #! /usr/bin/env spear void main() { C.INCLUDE("#include <stdio.h>"); C.CC("gcc -shared -fPIC"); string s="pike"; int n=2008; float pi=3.1415926535; C{ char* str="c string"; int m=514; double e=1.41421; printf("hello world!\n"); printf("printf %s string\n",STRING{s}); printf("printf pike int: %d\n",INT{n}); printf("printf pike float: %f\n",FLOAT{pi}); P{s="modify";} printf("%s pike var\n",STRING{s}); P{write("write %s\n",STRING{str});} P{write("write c int: %d\n",INT{m});} P{write("write c float: %f\n",FLOAT{e});} } } $ pike -x spear hello.spear hello world! printf pike string printf pike int: 2008 printf pike float: 3.141593 modify pike var write c string write c int: 514 write c float: 1.414 How to install: Extract the attachment in Pike-v7.7-snapshot and make. Please see the README-spear: $ cat README-spear Install: tar xzvf snapshot.tar.gz cd Pike-v7.7-snapshot tar xzvf ../Pike-Spear-vN.N.NNNNNNNNN.tar.gz Note: * src/Makefile.in is base on Pike-v7.7.44-20080421, do a vimdiff before use with a diffrent version of Pike.

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7.8 blockers
by Mirar ＠ Pike developers forum 04 May '08

04 May '08

> strlen(Image.JPEG.encode(Image.load("DSC00354.JPG")->scale(0.5))); *** glibc detected *** pike: munmap_chunk(): invalid pointer: 0x0000000000a6a780 *** ======= Backtrace: ========= /lib/libc.so.6(cfree+0x1b6)[0x2af065141d46] /usr/lib/libjpeg.so.62[0x2af066af7ffa] /usr/lib/libjpeg.so.62[0x2af066af80fb] /usr/lib/libjpeg.so.62(jpeg_destroy+0x10)[0x2af066af7540] /usr/local/pike/7.6.112/lib/modules/_Image_JPEG.so[0x2af066425e68] /usr/lib/libjpeg.so.62[0x2af066ae78ea] /usr/lib/libjpeg.so.62[0x2af066ae4fca] /usr/lib/libjpeg.so.62[0x2af066ae3ef6] /usr/lib/libjpeg.so.62(jpeg_write_scanlines+0x9f)[0x2af066ae0dff] /usr/local/pike/7.6.112/lib/modules/_Image_JPEG.so[0x2af066427cd2] pike(low_mega_apply+0xc7d)[0x42c73d] ...

3 5

7.8 blockers
by Mirar ＠ Pike developers forum 04 May '08

04 May '08

I get a lot of these: ==29264== Conditional jump or move depends on uninitialised value(s) ==29264== at 0x84335A5: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x8430FC9: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x842FEF5: (within /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x842CDFE: jpeg_write_scanlines (in /usr/lib/libjpeg.so.62.0.0) ==29264== by 0x822015C: image_jpeg_encode (image_jpeg.c:912) ==29264== by 0x44B132: low_mega_apply (apply_low.h:225) ==29264== by 0x445B7A: eval_instruction (interpret_functions.h:2065) ==29264== by 0x44DDA8: catching_eval_instruction (interpret.c:2225) ==29264== by 0x440C37: eval_instruction (interpret_functions.h:1286) ==29264== by 0x44DD26: mega_apply (interpret.c:2195) ==29264== by 0x51D4FA: call_pike_initializers (object.c:333) ==29264== by 0x51D925: parent_clone_object (object.c:416) but they don't seem to be harmful?

1 0

7.8 blockers
by Mirar ＠ Pike developers forum 03 May '08

03 May '08

...hm, I thought I had a newer Pike. Doesn't trigger with 7.7.39, is it fixed?

2 2

inherit resolving problem
by Martin Nilsson (Opera Mini - AFK!) ＠ Pike (-) developers forum 03 May '08

03 May '08

If I create a module X.pmod with the contents class Y { class X { } } and then tries to run the following program class Z { inherit X.Y; } void main() { } I will get the error that 'Index Y not present in module "X".' Doing other things with X.Y is however possible, like declaring a variable "X.Y foo;" in the Z class or making the statement werror("%O\n", indices(X.Y)); in main().

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Pike-devel May 2008