new hello world post
This commit is contained in:
Torsten Ruger
parent
9f1fec99f3
commit
539b7d9cfe
150
Gemfile.lock
150
Gemfile.lock
@ -13,34 +13,42 @@ GEM
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execjs
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coffee-script-source (1.11.1)
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colorator (1.1.0)
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commonmarker (0.17.9)
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ruby-enum (~> 0.5)
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concurrent-ruby (1.0.5)
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em-websocket (0.5.1)
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eventmachine (>= 0.12.9)
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http_parser.rb (~> 0.6.0)
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ethon (0.11.0)
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ffi (>= 1.3.0)
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eventmachine (1.2.5)
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execjs (2.7.0)
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faraday (0.13.1)
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faraday (0.14.0)
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multipart-post (>= 1.2, < 3)
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ffi (1.9.18)
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ffi (1.9.23)
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forwardable-extended (2.6.0)
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gemoji (3.0.0)
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github-pages (168)
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github-pages (180)
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activesupport (= 4.2.9)
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github-pages-health-check (= 1.3.5)
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jekyll (= 3.6.2)
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github-pages-health-check (= 1.4.0)
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jekyll (= 3.7.3)
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jekyll-avatar (= 0.5.0)
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jekyll-coffeescript (= 1.0.2)
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jekyll-coffeescript (= 1.1.1)
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jekyll-commonmark-ghpages (= 0.1.5)
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jekyll-default-layout (= 0.1.4)
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jekyll-feed (= 0.9.2)
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jekyll-gist (= 1.4.1)
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jekyll-github-metadata (= 2.9.3)
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jekyll-mentions (= 1.2.0)
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jekyll-optional-front-matter (= 0.2.0)
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jekyll-feed (= 0.9.3)
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jekyll-gist (= 1.5.0)
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jekyll-github-metadata (= 2.9.4)
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jekyll-mentions (= 1.3.0)
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jekyll-optional-front-matter (= 0.3.0)
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jekyll-paginate (= 1.1.0)
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jekyll-readme-index (= 0.1.0)
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jekyll-redirect-from (= 0.12.1)
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jekyll-relative-links (= 0.5.1)
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jekyll-sass-converter (= 1.5.0)
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jekyll-seo-tag (= 2.3.0)
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jekyll-sitemap (= 1.1.1)
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jekyll-readme-index (= 0.2.0)
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jekyll-redirect-from (= 0.13.0)
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jekyll-relative-links (= 0.5.3)
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jekyll-remote-theme (= 0.2.3)
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jekyll-sass-converter (= 1.5.2)
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jekyll-seo-tag (= 2.4.0)
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jekyll-sitemap (= 1.2.0)
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jekyll-swiss (= 0.4.0)
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jekyll-theme-architect (= 0.1.0)
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jekyll-theme-cayman (= 0.1.0)
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@ -55,69 +63,84 @@ GEM
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jekyll-theme-slate (= 0.1.0)
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jekyll-theme-tactile (= 0.1.0)
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jekyll-theme-time-machine (= 0.1.0)
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jekyll-titles-from-headings (= 0.4.0)
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jemoji (= 0.8.1)
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kramdown (= 1.14.0)
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jekyll-titles-from-headings (= 0.5.1)
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jemoji (= 0.9.0)
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kramdown (= 1.16.2)
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liquid (= 4.0.0)
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listen (= 3.0.6)
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listen (= 3.1.5)
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mercenary (~> 0.3)
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minima (= 2.1.1)
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minima (= 2.4.0)
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nokogiri (>= 1.8.1, < 2.0)
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rouge (= 2.2.1)
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terminal-table (~> 1.4)
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github-pages-health-check (1.3.5)
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github-pages-health-check (1.4.0)
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addressable (~> 2.3)
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net-dns (~> 0.8)
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octokit (~> 4.0)
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public_suffix (~> 2.0)
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typhoeus (~> 0.7)
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typhoeus (~> 1.3)
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html-pipeline (2.7.1)
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activesupport (>= 2)
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nokogiri (>= 1.4)
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i18n (0.9.1)
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http_parser.rb (0.6.0)
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i18n (0.9.5)
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concurrent-ruby (~> 1.0)
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jekyll (3.6.2)
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jekyll (3.7.3)
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addressable (~> 2.4)
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colorator (~> 1.0)
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em-websocket (~> 0.5)
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i18n (~> 0.7)
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jekyll-sass-converter (~> 1.0)
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jekyll-watch (~> 1.1)
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jekyll-watch (~> 2.0)
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kramdown (~> 1.14)
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liquid (~> 4.0)
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mercenary (~> 0.3.3)
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pathutil (~> 0.9)
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rouge (>= 1.7, < 3)
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rouge (>= 1.7, < 4)
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safe_yaml (~> 1.0)
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jekyll-avatar (0.5.0)
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jekyll (~> 3.0)
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jekyll-coffeescript (1.0.2)
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jekyll-coffeescript (1.1.1)
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coffee-script (~> 2.2)
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coffee-script-source (~> 1.11.1)
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jekyll-commonmark (1.2.0)
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commonmarker (~> 0.14)
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jekyll (>= 3.0, < 4.0)
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jekyll-commonmark-ghpages (0.1.5)
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commonmarker (~> 0.17.6)
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jekyll-commonmark (~> 1)
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rouge (~> 2)
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jekyll-default-layout (0.1.4)
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jekyll (~> 3.0)
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jekyll-feed (0.9.2)
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jekyll-feed (0.9.3)
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jekyll (~> 3.3)
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jekyll-gist (1.4.1)
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jekyll-gist (1.5.0)
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octokit (~> 4.2)
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jekyll-github-metadata (2.9.3)
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jekyll-github-metadata (2.9.4)
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jekyll (~> 3.1)
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octokit (~> 4.0, != 4.4.0)
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jekyll-mentions (1.2.0)
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jekyll-mentions (1.3.0)
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activesupport (~> 4.0)
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html-pipeline (~> 2.3)
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jekyll (~> 3.0)
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jekyll-optional-front-matter (0.2.0)
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jekyll-optional-front-matter (0.3.0)
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jekyll (~> 3.0)
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jekyll-paginate (1.1.0)
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jekyll-readme-index (0.1.0)
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jekyll-readme-index (0.2.0)
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jekyll (~> 3.0)
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jekyll-redirect-from (0.12.1)
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jekyll-redirect-from (0.13.0)
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jekyll (~> 3.3)
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jekyll-relative-links (0.5.1)
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jekyll-relative-links (0.5.3)
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jekyll (~> 3.3)
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jekyll-sass-converter (1.5.0)
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jekyll-remote-theme (0.2.3)
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jekyll (~> 3.5)
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rubyzip (>= 1.2.1, < 3.0)
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typhoeus (>= 0.7, < 2.0)
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jekyll-sass-converter (1.5.2)
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sass (~> 3.4)
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jekyll-seo-tag (2.3.0)
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jekyll-seo-tag (2.4.0)
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jekyll (~> 3.3)
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jekyll-sitemap (1.1.1)
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jekyll-sitemap (1.2.0)
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jekyll (~> 3.3)
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jekyll-swiss (0.4.0)
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jekyll-theme-architect (0.1.0)
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@ -160,40 +183,47 @@ GEM
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jekyll-theme-time-machine (0.1.0)
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jekyll (~> 3.5)
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jekyll-seo-tag (~> 2.0)
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jekyll-titles-from-headings (0.4.0)
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jekyll-titles-from-headings (0.5.1)
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jekyll (~> 3.3)
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jekyll-watch (1.5.0)
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listen (~> 3.0, < 3.1)
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jemoji (0.8.1)
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jekyll-watch (2.0.0)
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listen (~> 3.0)
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jemoji (0.9.0)
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activesupport (~> 4.0, >= 4.2.9)
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gemoji (~> 3.0)
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html-pipeline (~> 2.2)
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jekyll (>= 3.0)
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kramdown (1.14.0)
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jekyll (~> 3.0)
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kramdown (1.16.2)
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liquid (4.0.0)
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listen (3.0.6)
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rb-fsevent (>= 0.9.3)
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rb-inotify (>= 0.9.7)
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listen (3.1.5)
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rb-fsevent (~> 0.9, >= 0.9.4)
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rb-inotify (~> 0.9, >= 0.9.7)
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ruby_dep (~> 1.2)
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mercenary (0.3.6)
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mini_portile2 (2.3.0)
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minima (2.1.1)
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jekyll (~> 3.3)
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minitest (5.10.3)
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minima (2.4.0)
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jekyll (~> 3.5)
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jekyll-feed (~> 0.9)
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jekyll-seo-tag (~> 2.1)
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minitest (5.11.3)
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multipart-post (2.0.0)
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net-dns (0.8.0)
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nokogiri (1.8.1)
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nokogiri (1.8.2)
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mini_portile2 (~> 2.3.0)
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octokit (4.7.0)
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octokit (4.8.0)
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sawyer (~> 0.8.0, >= 0.5.3)
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pathutil (0.16.0)
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pathutil (0.16.1)
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forwardable-extended (~> 2.6)
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public_suffix (2.0.5)
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rb-fsevent (0.10.2)
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rb-fsevent (0.10.3)
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rb-inotify (0.9.10)
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ffi (>= 0.5.0, < 2)
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rouge (2.2.1)
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ruby-enum (0.7.2)
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i18n
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ruby_dep (1.5.0)
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rubyzip (1.2.1)
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safe_yaml (1.0.4)
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sass (3.5.3)
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sass (3.5.6)
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sass-listen (~> 4.0.0)
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sass-listen (4.0.0)
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rb-fsevent (~> 0.9, >= 0.9.4)
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@ -204,9 +234,9 @@ GEM
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terminal-table (1.8.0)
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unicode-display_width (~> 1.1, >= 1.1.1)
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thread_safe (0.3.6)
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typhoeus (0.8.0)
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ethon (>= 0.8.0)
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tzinfo (1.2.4)
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typhoeus (1.3.0)
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ethon (>= 0.9.0)
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tzinfo (1.2.5)
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thread_safe (~> 0.1)
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unicode-display_width (1.3.0)
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95
_posts/2018-04-09-a-dynamic-hello-world.md
Normal file
95
_posts/2018-04-09-a-dynamic-hello-world.md
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@ -0,0 +1,95 @@
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---
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layout: news
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author: Torsten
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---
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Now that i *have* had time to write some more code (250 commits last month), here is
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the good news:
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## Sending is done
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A dynamic language like ruby really has at it's heart the dynamic method resolution. Without
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that we'd be writing C++. Not much can be done in ruby without looking up methods.
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Yet all this time i have been running circles around this mother of a problem, because
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(after all) it is a BIG one. It must be the one single most important reason why dynamic
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languages are interpreted and not compiled.
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## A brief recap
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Last year already i started on a rewrite. After hitting this exact same wall for the fourth
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time. I put in some more Layers, the way a good programmer fixes any daunting problem.
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The [Readme](https://github.com/ruby-x/rubyx) has quite a good summary on the new layers,
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and off course i'll update the architecture soon. But in case you didn't click, here is the
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very very short summary:
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- Vool is a Virtual Object Oriented Language. Virtual in that is has no own syntax. But
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it has semantics, and those are substantially simpler than ruby. Vool is Ruby without
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the fluff.
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- Mom, the Minimal Object Machine layer is the first machine layer. Mom has no concept of memory
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yet, only objects. Data is transferred directly from object
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to object with one of Mom's main instructions, the SlotLoad.
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- Risc layer here abstracts the Arm in a minimal and independent way. It does not model
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any real RISC cpu instruction set, but rather implements what is needed for rubyx.
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- There is a minimal *Arm* translator that transforms Risc instructions to Arm instructions.
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Arm instructions assemble themselves into binary code. A minimal *Elf* implementation is
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able to create executable binaries from the assembled code and Parfait objects.
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- Parfait: Generating code (by descending above layers) is only half the story in an oo system.
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The other half is classes, types, constant objects and a minimal run-time. This is
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what is Parfait is.
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## Compiling and building
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After having finished all this layering work, i was back to square *resolve*: how to
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dynamically, at run-time, resolve a method to binary. The strategy was going to be to have
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some short risc based check and bail out to a method.
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But off course when i got there i started thinking that the resolve method (in ruby)
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would need resolve itself. And after briefly considering cheating (hardcoding type
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information into this *one* method), i opted to write the code in Risc. Basically assembler.
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And it was horrible. It worked, but it was completely unreadable. So then i wrote a dsl for
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generating risc instructions, using a combination of method_missing, instance_eval and
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operator overloading. The result is quite readable code, a mixture between assembler and
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a mathematical notation, where one can just freely name registers and move data around
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with *[]* and *<<*.
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By then resolving worked, but it was still a method. Since it was already in risc, i basically
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inlined the code by creating a new Mom instruction and moving the code to it's *to_risc*.
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Now resolving still worked, and also looked good.
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A small bug in calling the resulting method was fixed, and *voila*, ruby-x can dynamically call
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any method.
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## The proof
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Previous, static, Hello Worlds looked like this:
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> "Hello world".putstring
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Off course we can know the type that putstring applies to and so this does not
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involve any method resolution at runtime, only at compile time.
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Todays step is thus:
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> a = "Hello World"
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> a.putstring
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This does involve a run-time lookup of the *putstring* method. It being a method on String,
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it is indeed found and called.(1) Hurray.
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And maths works too:
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> a = 150
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> a.div10
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Does indeed result in 15. Even with the *new* integers. Part of the rewrite was to upgrade
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integers to first class objects.
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PS(1): I know with more analysis the compiler *could* now that *a* is a String (or Integer),
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but just now it doesn't. Take my word for it or even better, read the code.
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