From my understanding ( the fpc team probably can to more exact):
* lexical level
This would be like a simple "Find and Replace" on the text. This would
work with anything, as it doesn't know what it is translating.
(It is very similar to a (non-buildin) C-preprocessor)
* parser level
The parser will likely translate the source into a structure of objects
a := a + 1
becomes
ObjectAssignmenOp
LeftHandTerm = ObjVariable "a"
RightHandTerm = ObjExpression ( ObjAddition: Op1 = Variable "a";
Op2= 1 )
If that happens to "+=" then "a+=1"
ObjectAssignmenOpIncr
LeftHandTerm = ObjVariable
RightHandTerm = ObjExpression
if the left hand term is a property, then because it is the left hand
(which will be assigned to), the lefthand term becomes the property-setter.
The ObjectAssignmenOpIncr then has no reference to the property-getter.
Graeme Geldenhuys wrote:
On Thu, Jul 17, 2008 at 9:07 AM, Micha Nelissen <[EMAIL PROTECTED]> wrote:
Jonas Maebe wrote:
Indeed. I've checked the code and properties are explicitly not allowed
for the C-style operators. The reason is that the x+=y is translated into
"x:=x+y" at the parser level rather than at the lexical level. This
So I guess the obvious question is: would it be risky to change that so it
parses it at the lexical level? :-)
My question too.... Would somebody be so kind as to explain the
difference to me? As I mentioned before, I'm not a compiler
developer.
Regards,
- Graeme -
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