Hi Markus,
first of all thanks for the very fast response.
I had looked inside ITranslationUnit.AST_PARSE_INACTIVE_CODE and have
some further questions. I tried the following code
ITranslationUnit tu =
(ITranslationUnit)CoreModel.getDefault().create(file);
IIndex index =
CCorePlugin.getIndexManager().getIndex(tu.getCProject());
IASTTranslationUnit ast = tu.getAST(index,
ITranslationUnit.AST_PARSE_INACTIVE_CODE);
IASTDeclaration[] declarations =
ast.getDeclarations(true);
If I run this code with the sample below I don't get the declaration
inside the #if(x).
Is there something wrong with my code or depends this to the
following:
* The
parser makes its best effort to create ast for the inactive code branches
but may decide to skip parts
* of the inactive code
(e.g. function bodies, entire code branches, etc.).
I get the same result if I use the visitor.
ASTVisitor astVisitor = new ASTVisitor(true) {
@Override
public
int visit(IASTName name) {
System.out.println("Visit
node: " + name.getRawSignature());
return
super.visit(name);
}
};
astVisitor.includeInactiveNodes = true;
ast.accept(astVisitor);
Cheers,
Markus
Am 14.01.2010 um 17:48 schrieb Schorn, Markus:
Hi Markus,
The preprocessor constructs do not have a body in the
sense of IASTNodes, they can intersect with ast-nodes at
arbitrary points. Very often this is not the case,
however we have to deal with those cases as well.
CDT cannot
provide you with code completion in inactive code.
You can figure out a reasonable settting for the macros
used in your preprocessor conditionals and configure
your
project accordingly. You can also have different
settings associated with different build configurations and switch back and
forth between them.
There is some limited support to get AST for inactive
code. Please consult the java-doc of
ITranslationUnit.AST_PARSE_INACTIVE_CODE for that.
Markus.
Hi
together,
my
name is Markus and I am currently working at a solution which can find the
elements inside of a preprocessor #if() body.
Here
a small sample what I mean:
void foo(void){
#if(x) {
int a;
}
#else ......
}
With this part of code in the code completion list of the
cdt editor the element "a" isn't listed. Important to know is that the
element "x" has in my scope of the project no value. So it isn't possible
for the parser/preprocessor to know if the _expression_ is true or false and
will add the elements of the #else part to the ast. As I can get all
preprocessor statements from the IASTTranslationUnit I think there should
be a way to acquire also the body of such preprocessor #if statements with
unknown _expression_ result, isn't it. And that is the point for my idea. If
I can get out the preprocessor #if body of the cdt everything would be
fine. Is
there a possibility to get this skiped part?
Thanks
in advance for all your support!!!!
Cheers,
Markus
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