Hi guys
we are looking at STON and ObjectLiterals with Christophe and for
handling metadata.
And I was brainstorming.... I was wondering if it would be possible to
have a bit more use of self evaluating
for example
1@3
#k -> 2 instead of (Association #k 123)
my brainstorming is how could we minimize new syntactic constructs and
still support a literal object format.
So object literal cover that so may be this is good.
1@3 as (Point 1 3)
and
#k -> 123 as (Association #k 123)
So I'm not clear but this is interesting to think about it.
I would like to have also a dictionary literal syntax.... but this
another story.
Stef
PS: Sven I added support for Association into the ObjectLiteral project
to see how it works.
I took Igor's initial code and created a new project:
http://smalltalkhub.com/#!/~SvenVanCaekenberghe/ObjectLiterals/
and I added ObjectLiteralParser to convert any Character Stream or
String into a Smalltalk Literal Array and eventually into an Object.
This proof of concept moves the ObjectLiteral format/notation away from
the Smalltalk compiler and will help us discuss more concretely the
actual details of the specification (which is still not 100% finished).
I also added 12 unit tests and cleaned up the code and comments.
Please have a look at the code.
This is one of the tests:
ObjectLiteralParserTests>>#testMixed1
| input output |
input := '
#(Array
1
foo
#''foo-#bar''
true
false
nil
3.14159
-100
''string''
(#OrderedCollection 7 8 9)
#(Set 10)
(Dictionary
x 1
y 2) ) '.
output := {
1.
#foo.
#'foo-#bar'.
true.
false.
nil.
3.14159.
-100.
'string'.
OrderedCollection withAll: #(7 8 9).
Set with: 10.
Dictionary newFromPairs: #(x 1 y 2 ). }.
self assert: (self parserOn: input) nextObjectLiteral equals: output
I like this format, its simplicity and elegance is appealing, it offers
distinctive advantages in the Smalltalk context while its slight
readability disadvantage is acceptable. Like any format it is a
compromise and a tradeoff, but a rather good one.
Regards,
Sven
--
Sven Van Caekenberghe
http://stfx.eu
Smalltalk is the Red Pill
