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index.html

@@ -39,7 +39,7 @@ <h1>
 <h2>
 <a name="abstract-data-types" class="anchor" href="#abstract-data-types"><span class="octicon octicon-link"></span></a>Abstract Data Types</h2>
 
-<p>Uisng the <code>datatype(dataname, ...)</code>, <code>datatypeempty(dataname, option)</code>, and <code>datatypedefine(dataname, option, structure)</code> macros, you can create Haskell style abstract data types.</p>
+<p>Uisng the <code>datatype(dataname, ...)</code>, <code>datatypeatom(dataname, option)</code>, and <code>datatypedefine(dataname, option, structure)</code> macros, you can create Haskell style abstract data types.</p>
 
 <p>Haskell Example:</p>
 
@@ -86,6 +86,30 @@ <h2>
         whereatom(NoneInt) return 0;
         where(JustInt, j) return j-&gt;number;
     endcaseof;
+    return 0; // we unfortunately need a dummy return value to avoid a compiler warning
+}
+</code></pre>
+
+<h2>
+<a name="closures" class="anchor" href="#closures"><span class="octicon octicon-link"></span></a>Closures</h2>
+
+<p>Using the <code>closure(type, fn, context, ...)</code> and <code>call(fn, context, ...)</code> macros, you can create a kind of closure over desired values for functions. This can be useful to easily create context for function calls.</p>
+
+<p>Haskell Example:</p>
+
+<pre><code>f :: Int -&gt; Int
+f x = fhelper 5
+    where fhelper y = x + y
+</code></pre>
+
+<p>Chunktional Example:</p>
+
+<pre><code>closure(int, fhelper, {int x;}, int y) {
+    return closure.x + y;
+}
+
+int f(int x) {
+    return call(fhelper, {x}, 5);
 }
 </code></pre>
       </section>

params.json

@@ -1 +1 @@
-{"name":"Chunktional","tagline":"Functional Macros for C","body":"#Chunktional\r\n\r\nChunktional is a collection of macros that can make functional style programming in C convenient.\r\n\r\n##Abstract Data Types\r\n\r\nUisng the `datatype(dataname, ...)`, `datatypeempty(dataname, option)`, and `datatypedefine(dataname, option, structure)` macros, you can create Haskell style abstract data types.\r\n\r\nHaskell Example:\r\n\r\n\tdatatype Maybe = None | Just x\r\n\r\n\tx = None\r\n\ty = Just 10\r\n\r\nChunktional Example:\r\n\r\n\tdatatype(MaybeInt, NoneInt, JustInt);\r\n\tdatatypeempty(MaybeInt, NoneInt);\r\n\tdatatypedefine(MaybeInt, JustInt, {int number;});\r\n\r\n\tint main() {\r\n\t\tMaybeInt *x = mkdatatype(NoneInt);\r\n\t    MaybeInt *y = mkdatatype(JustInt, 10);\r\n\r\n\t\tfree(x);\r\n\t\tfree(y);\r\n\r\n\t\treturn 0;\r\n\t}\r\n\r\n##Pattern Matching\r\n\r\nUsing the `caseof(value)`, `endcaseof`, `where(option, result)`, `whereatom(option)`, and `otherwise` macros, you can create a kind of case-of statement for use with the abstract data types.\r\n\r\nHaskell Example:\r\n\r\n\tf :: Maybe Int -> Int\r\n\tf m = case m of\r\n\t\t\tNone -> 0\r\n\t\t\tJust x -> x\r\n\r\nChunktional Example:\r\n\r\n\tint f(MaybeInt *m) {\r\n\t\tcaseof(m)\r\n\t        whereatom(NoneInt) return 0;\r\n\t        where(JustInt, j) return j->number;\r\n\t    endcaseof;\r\n\t}\r\n","google":"","note":"Don't delete this file! It's used internally to help with page regeneration."}
+{"name":"Chunktional","tagline":"Functional Macros for C","body":"#Chunktional\r\n\r\nChunktional is a collection of macros that can make functional style programming in C convenient.\r\n\r\n##Abstract Data Types\r\n\r\nUisng the `datatype(dataname, ...)`, `datatypeatom(dataname, option)`, and `datatypedefine(dataname, option, structure)` macros, you can create Haskell style abstract data types.\r\n\r\nHaskell Example:\r\n\r\n\tdatatype Maybe = None | Just x\r\n\r\n\tx = None\r\n\ty = Just 10\r\n\r\nChunktional Example:\r\n\r\n\tdatatype(MaybeInt, NoneInt, JustInt);\r\n\tdatatypeempty(MaybeInt, NoneInt);\r\n\tdatatypedefine(MaybeInt, JustInt, {int number;});\r\n\r\n\tint main() {\r\n\t\tMaybeInt *x = mkdatatype(NoneInt);\r\n\t    MaybeInt *y = mkdatatype(JustInt, 10);\r\n\r\n\t\tfree(x);\r\n\t\tfree(y);\r\n\r\n\t\treturn 0;\r\n\t}\r\n\r\n##Pattern Matching\r\n\r\nUsing the `caseof(value)`, `endcaseof`, `where(option, result)`, `whereatom(option)`, and `otherwise` macros, you can create a kind of case-of statement for use with the abstract data types.\r\n\r\nHaskell Example:\r\n\r\n\tf :: Maybe Int -> Int\r\n\tf m = case m of\r\n\t\t\tNone -> 0\r\n\t\t\tJust x -> x\r\n\r\nChunktional Example:\r\n\r\n\tint f(MaybeInt *m) {\r\n\t\tcaseof(m)\r\n\t        whereatom(NoneInt) return 0;\r\n\t        where(JustInt, j) return j->number;\r\n\t    endcaseof;\r\n\t    return 0; // we unfortunately need a dummy return value to avoid a compiler warning\r\n\t}\r\n\r\n##Closures\r\n\r\nUsing the `closure(type, fn, context, ...)` and `call(fn, context, ...)` macros, you can create a kind of closure over desired values for functions. This can be useful to easily create context for function calls.\r\n\r\nHaskell Example:\r\n\r\n\tf :: Int -> Int\r\n\tf x = fhelper 5\r\n\t\twhere fhelper y = x + y\r\n\r\nChunktional Example:\r\n\r\n\tclosure(int, fhelper, {int x;}, int y) {\r\n\t\treturn closure.x + y;\r\n\t}\r\n\r\n\tint f(int x) {\r\n\t\treturn call(fhelper, {x}, 5);\r\n\t}\r\n","google":"","note":"Don't delete this file! It's used internally to help with page regeneration."}