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-rw-r--r--haxe.html.markdown56
1 files changed, 34 insertions, 22 deletions
diff --git a/haxe.html.markdown b/haxe.html.markdown
index 8599de8d..ee214540 100644
--- a/haxe.html.markdown
+++ b/haxe.html.markdown
@@ -3,6 +3,7 @@ language: haxe
filename: LearnHaxe3.hx
contributors:
- ["Justin Donaldson", "https://github.com/jdonaldson/"]
+ - ["Dan Korostelev", "https://github.com/nadako/"]
---
Haxe is a web-oriented language that provides platform support for C++, C#,
@@ -34,16 +35,20 @@ references.
/*
This is your first actual haxe code coming up, it's declaring an empty
package. A package isn't necessary, but it's useful if you want to create a
- namespace for your code (e.g. org.module.ClassName).
+ namespace for your code (e.g. org.yourapp.ClassName).
+
+ Omitting package declaration is the same as declaring an empty package.
*/
package; // empty package, no namespace.
/*
- Packages define modules for your code. Each module (e.g. org.module) must
- be lower case, and should exist as a folder structure containing the class.
- Class (and type) names must be capitalized. E.g, the class "org.module.Foo"
- should have the folder structure org/module/Foo.hx, as accessible from the
- compiler's working directory or class path.
+ Packages are directories that contain modules. Each module is a .hx file
+ that contains types defined in a package. Package names (e.g. org.yourapp)
+ must be lower case while module names are capitalized. A module contain one
+ or more types whose names are also capitalized.
+
+ E.g, the class "org.yourapp.Foo" should have the folder structure org/module/Foo.hx,
+ as accessible from the compiler's working directory or class path.
If you import code from other files, it must be declared before the rest of
the code. Haxe provides a lot of common default classes to get you started:
@@ -53,6 +58,12 @@ import haxe.ds.ArraySort;
// you can import many classes/modules at once with "*"
import haxe.ds.*;
+// you can import static fields
+import Lambda.array;
+
+// you can also use "*" to import all static fields
+import Math.*;
+
/*
You can also import classes in a special way, enabling them to extend the
functionality of other classes like a "mixin". More on 'using' later.
@@ -172,7 +183,8 @@ class LearnHaxe3{
Regexes are also supported, but there's not enough space to go into
much detail.
*/
- trace((~/foobar/.match('foo')) + " is the value for (~/foobar/.match('foo')))");
+ var re = ~/foobar/;
+ trace(re.match('foo') + " is the value for (~/foobar/.match('foo')))");
/*
Arrays are zero-indexed, dynamic, and mutable. Missing values are
@@ -311,7 +323,7 @@ class LearnHaxe3{
var l = 0;
do{
trace("do statement always runs at least once");
- } while (i > 0);
+ } while (l > 0);
// for loop
/*
@@ -328,7 +340,7 @@ class LearnHaxe3{
// (more on ranges later as well)
var n = ['foo', 'bar', 'baz'];
for (val in 0...n.length){
- trace(val + " is the value for val (an index for m)");
+ trace(val + " is the value for val (an index for n)");
}
@@ -363,7 +375,7 @@ class LearnHaxe3{
case "rex" : favorite_thing = "shoe";
case "spot" : favorite_thing = "tennis ball";
default : favorite_thing = "some unknown treat";
- // case _ : "some unknown treat"; // same as default
+ // case _ : favorite_thing = "some unknown treat"; // same as default
}
// The "_" case above is a "wildcard" value
// that will match anything.
@@ -383,13 +395,9 @@ class LearnHaxe3{
*/
// if statements
- var k = if (true){
- 10;
- } else {
- 20;
- }
+ var k = if (true) 10 else 20;
- trace("K equals ", k); // outputs 10
+ trace("k equals ", k); // outputs 10
var other_favorite_thing = switch(my_dog_name) {
case "fido" : "teddy";
@@ -487,8 +495,10 @@ class LearnHaxe3{
// foo_instance.public_read = 4; // this will throw an error if uncommented:
// trace(foo_instance.public_write); // as will this.
- trace(foo_instance + " is the value for foo_instance"); // calls the toString method
- trace(foo_instance.toString() + " is the value for foo_instance.toString()"); // same thing
+ // calls the toString method:
+ trace(foo_instance + " is the value for foo_instance");
+ // same thing:
+ trace(foo_instance.toString() + " is the value for foo_instance.toString()");
/*
@@ -516,8 +526,8 @@ class LearnHaxe3{
*/
class FooClass extends BarClass implements BarInterface{
public var public_any:Int; // public variables are accessible anywhere
- public var public_read (default,null): Int; // use this style to only enable public read
- public var public_write (null, default): Int; // or public write
+ public var public_read (default, null): Int; // enable only public read
+ public var public_write (null, default): Int; // or only public write
public var property (get, set): Int; // use this style to enable getters/setters
// private variables are not available outside the class.
@@ -526,9 +536,10 @@ class FooClass extends BarClass implements BarInterface{
// a public constructor
public function new(arg:Int){
- super(); // call the constructor of the parent object, since we extended BarClass
+ // call the constructor of the parent object, since we extended BarClass:
+ super();
- this.public_any= 0;
+ this.public_any = 0;
this._private = arg;
}
@@ -628,6 +639,7 @@ enum ComplexEnum{
ComplexEnumEnum(c:ComplexEnum);
}
// Note: The enum above can include *other* enums as well, including itself!
+// Note: This is what's called *Algebraic data type* in some other languages.
class ComplexEnumTest{
public static function example(){