Hello,
Few questions about Namespaces are buzzing me. Please, if you are the
right person to address those questions, feel free to forward this
email.
The notion of namespace of ECMA 4 is very interesting. I spent some
time in reading the new javascript description [1]. I try to
understand whether a "stack of namespace" is present or not at
runtime. Let's assume the following code:
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
namespace V2;
class Component {
function paint () {print("Component paint")}
function update () {this.paint()}
V2 function paint () {print("Component paint V2")}
}
use namespace V2
var c = new Component();
c.update(); // Does it print V2 or not ?
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
update() is defined in the default namespace, therefore I imagine
that the default implementation of paint() is invoked. "V2" should
not be displayed, however, would you mind to confirm ?
I tried to execute this code on the interpreter es4 for Macosx (intel
version on http://www.ecmascript-lang.org/download.php), but the "use
namespace" clause is not accepted. For example, the following code
cannot be parsed:
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
namespace N1
namespace N2
N1 var x : int = 10
N2 var x : String = "hello"
use namespace N1
print(x) // print 10
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Is there a chance to get a fixed interpreter ?
Best regards,
Alexandre
[1] http://developer.mozilla.org/es4/spec/chapter_12_namespaces.html
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Alexandre Bergel http://www.bergel.eu
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