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cache compiled code in temp files
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 29 Dec 2019 15:25:07 -0700
parents e48290f3d9fb
children d9a5405a3102
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1433:5f038be65271 1434:56fb5cd8228d
1810 end 1810 end
1811 </pre> 1811 </pre>
1812 1812
1813 1813
1814 1814
1815 <h4 heading><a name="Luan.eval" href="#Luan.eval"><code>Luan.eval (text [, source_name] [, env])</code></a></h4> 1815 <h4 heading><a name="Luan.eval" href="#Luan.eval"><code>Luan.eval (text [, source_name [, env]])</code></a></h4>
1816 1816
1817 <p> 1817 <p>
1818 Evaluates <code>text</code> as a Luan expression. 1818 Evaluates <code>text</code> as a Luan expression.
1819 1819
1820 <p> 1820 <p>
1874 end 1874 end
1875 </pre> 1875 </pre>
1876 1876
1877 1877
1878 1878
1879 <h4 heading><a name="Luan.load" href="#Luan.load"><code>Luan.load (text, source_name [, env])</code></a></h4> 1879 <h4 heading><a name="Luan.load" href="#Luan.load"><code>Luan.load (text, [source_name [, env [, persist]]])</code></a></h4>
1880 1880
1881 <p> 1881 <p>
1882 Loads a chunk. 1882 Loads a chunk.
1883 1883
1884 <p> 1884 <p>
1886 If there are no syntactic errors, 1886 If there are no syntactic errors,
1887 returns the compiled chunk as a function; 1887 returns the compiled chunk as a function;
1888 otherwise, throws an error. 1888 otherwise, throws an error.
1889 1889
1890 <p> 1890 <p>
1891 The <code>source_name</code> parameter is a string saying where the text came from. It is used to produce error messages. 1891 The <code>source_name</code> parameter is a string saying where the text came from. It is used to produce error messages. Defaults to "load".
1892 1892
1893 <p> 1893 <p>
1894 If the <code>env</code> parameter is supplied, it becomes the <code>_ENV</code> of the chunk. 1894 If the <code>env</code> parameter is supplied, it becomes the <code>_ENV</code> of the chunk.
1895 1895
1896 1896 <p>
1897 <h4 heading><a name="Luan.load_file" href="#Luan.load_file"><code>Luan.load_file ([file_uri])</code></a></h4> 1897 The <code>persist</code> parameter is a boolean which determines if the compiled code is persistently cached to a temporary file. Defaults to <code>false</code>.
1898
1899
1900 <h4 heading><a name="Luan.load_file" href="#Luan.load_file"><code>Luan.load_file (file_uri)</code></a></h4>
1898 1901
1899 <p> 1902 <p>
1900 Similar to <a href="#Luan.load"><code>load</code></a>, 1903 Similar to <a href="#Luan.load"><code>load</code></a>,
1901 but gets the chunk from file <code>file_uri</code> 1904 but gets the chunk from file <code>file_uri</code>.
1902 or from the standard input, 1905 <code>file_uri</code> can be a string or a uri table.
1903 if no file uri is given.
1904
1905 <p>
1906 Could be defined as:
1907
1908 <pre>
1909 function Luan.load_file(file_uri)
1910 file_uri = file_uri or "stdin:"
1911 local f = Io.uri(file_uri)
1912 if not f.exists() then
1913 return nil
1914 end
1915 return <a href="#Luan.load">Luan.load</a>( f.read_text(), file_uri )
1916 end
1917 </pre>
1918 1906
1919 1907
1920 <h4 heading><a name="Luan.new_error" href="#Luan.new_error"><code>Luan.new_error (message)</code></a></h4> 1908 <h4 heading><a name="Luan.new_error" href="#Luan.new_error"><code>Luan.new_error (message)</code></a></h4>
1921 1909
1922 <p> 1910 <p>