QtScript — shibu.jp
Note This page contains the contents that I researched in work time. This page is sponsered by DeNA Co.,Ltd. Qt has QtScript. QtScript is compatible with ECMA-262. In other words, it is a JavaScript without DOM. Performance is not bad. (Current version using JavaScriptCore and try moving to V8) It is a Qt Component. Easy to use. It is easy to add objects and functions from C++. It is easy to acces
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PyPy Status Blogã®ã‚¨ãƒ³ãƒˆãƒªã§PyPyã«StringBuilderã¨ã„ã†é«˜é€Ÿã§mutableãªæ–‡å—列ãŒã‚る事を知りã€å‡¦ç†é€Ÿåº¦ã‚’ãŸã‚ã—ã¦ã¿ã¾ã—ãŸã€‚ StringBuilderã¯ã‚„ã„。 #!/usr/bin/env pypy from random import choice from string import ascii_letters as ls import time import StringIO try: import __pypy__ except: pass ls = unicode(ls) ch = lambda: choice(ls) def measure(fn): # msec s = time.time() fn() e = time.time() return (e-s) * 1000 it = 100000 def naive(): s = u''
Scalaã§ãƒ‘ーサーを作ã£ã¦ã¿ã‚‹ã€œ1:構文定義 - ãã—ã ã®Hatena
Scalaã®å‹‰å¼·ã‚’ã¯ã˜ã‚ã¾ã—ãŸã€‚ ã§ã€ãªã‚“ã‹ãƒ‘ーサーコンビãƒãƒ¼ã‚¿ã¨ã„ã†ã®ãŒã‚るらã—ãã€ãƒ‘ーサーãŒç°¡å˜ã«ä½œã‚Œã‚‹ã‚‰ã—ãã€ã˜ã‚ƒã‚パーサー作ã£ã¦ã¿ã‚‹ã®ãŒScalaã®å‹‰å¼·ã«ã„ã„ã‚“ã˜ã‚ƒãªã„ã‹ã¨ã„ã†ã“ã¨ã§ã€ç°¡å˜ãªãƒ‘ーサーを作ã£ã¦ã¿ã‚‹ã“ã¨ã«ã—ã¾ã™ã€‚ ã¨ã‚Šã‚ãˆãšæ§‹æ–‡å®šç¾©ã—ã¦ã¿ã¾ã™ã€‚ 今回ã¤ãã‚‹ã®ã¯ã€æ•´æ•°ã®è¨ˆç®—ã‚’ã™ã‚‹ãƒ‘ーサーã£ã¦ã“ã¨ã«ã—ã¾ã™ã€‚æ•´æ•°ã¨ã€+/-ã€*ã€ã‚ã¨()ãらã„ãŒä½¿ãˆã‚‹ã‚‚ã®ã«ã—ã¾ã™ã€‚割り算を入れãªã„ã®ã¯ã€ãã“ã¯å˜ç´”ã«å‡¦ç†ã‚’付ã‘åŠ ãˆã‚Œã°å®Ÿç¾ã§ãã‚‹ã‹ã‚‰ã€‚ å¼ã®å„ªå…ˆé †ä½ã¨ã€åŒã˜å„ªå…ˆåº¦ã«è¤‡æ•°ã®æ¼”ç®—åãŒã‚ã‚Œã°ã„ã„ã£ã¦ã“ã¨ã«ã—ã¾ã™ã€‚ã‚ã¨ã€å˜é …演算åも使ã„ã¾ã›ã‚“。ã‚ã‚“ã©ã†ã ã‹ã‚‰ã€‚ 実装方é‡ã¯ã€Œã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãŒå¢—ãˆãªã„ã“ã¨ã€ã§ã™ã€‚ JavaTokenParsersを使ã†ã¨ã€Javaã®ãƒªãƒ†ãƒ©ãƒ«è¡¨è¨˜ãŒãã®ã¾ã¾ä½¿ãˆã‚‹ãƒ‘ーサーãŒä½œã‚Œã‚‹ã‚‰ã—ã„ã‚“ã§ã™ã‘ã©ã€æ§‹æ–‡ã‚’全部自分ã§å®šç¾©ã—ãŸã„ç—…æ°—ãªã®ã§ã€ãã®ä¸€éšŽå±¤ä¸Šã®RegexPars
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berp
Berp is an implementation of Python 3, written in Haskell. It provides a compiler and an interpreter. In both cases the input Python program is translated into Haskell code. The compiler turns the Haskell code into machine code. The interpreter runs the Haskell code immediately via the GHCi interpreter. The user interface of the interpreter imitates the one provided by CPython.
Scala on LLVM | Gamlor
For this semesters ‘Program Analysis and Transformation’ seminar I took a look on how you could potentially run Scala on the LLVM. I created an overview the motivation, implementation possibilities and challenges. The full paper is here. This blog post is an short overview that paper. There are three implementation strategies. The first one it to compile Scala with the LLVM tool chain and use it d
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The best thing of the on-going PyPy sprint is the cake that Laura made to celebrate the "5x faster than CPython"
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