Description jin huang 2011-05-24 11:17:58 EDT

Build Identifier: eclipse 3.6.0

In a function of c code, when local variable has the same name as another function A called in this function, if we check the method A's declaration by clicking "Open declaration", it show the declaration of the local variable, but not the declaration of function A.

Reproducible: Always

Steps to Reproduce:
when we have the follow source code, in which a local variable has the same name as a function called,

----------------------------------
1  int methodA(int a, int b){
2  	return a+b;
3  }
4
5
6  int method41(int a, int b){
7  	int methodA = 2;
8  	return methodA(a,b);
9  }
10 
11 int method42(int a, int b){
12	return methodA(a,b);
13 }
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if we right click on the function reference "methodA(...)" in line 8, and click "Open declaration" to get its declaration, eclipse will show you the declaration "int methodA = 2" in line 7, which is a error.


Then, I use eclipse's "c/c++ search" function
1)search string: "methodA*"
2)search for: Function
3)limitedto: references
But I got nothing !!


Finally, I download the source code of CDT from svn, write programs as below to get callers of function with name "methodA", I still just got one function reference from function "method42". The function "method41" is missing.

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	public void doAnalysis(){
		
		//search callers in each project
		for(int i=0;i<scope.length;++i){
			try {
				IIndex index = CCorePlugin.getIndexManager().getIndex((ICProject)scope[i], IIndexManager.ADD_DEPENDENCIES | IIndexManager.ADD_DEPENDENT);
				index.acquireReadLock();
				try {
					IIndexBinding[] callees= index.findBindings(calleeName.toCharArray(), IndexFilter.ALL_DECLARED, new NullProgressMonitor());
					
					// find references for each binding of callee
					for (IIndexBinding callee : callees) {
						if (callee instanceof IFunction) {
							getCallers((ICProject)scope[i], index, callee);
							}
						}//for

				} finally {
					index.releaseReadLock();
				}

			} catch (InterruptedException e) {} 
			catch (CoreException e) {}
			
			System.out.print("End of seach in project : "+ i+ ((ICProject)scope[i]).getElementName() +"\n");
		}//for
		
		System.out.print("number of callers is : "+this.result.getElements().length+"\n");
	}//doAnalysis()
	
	void getCallers(ICProject project, IIndex index, IIndexBinding callee) throws CoreException
	{
		IIndexName[] callers = index.findReferences(callee);
		for (int i = 0; i < callers.length; i++) {
			IIndexName rname = callers[i];
			IIndexName caller = rname.getEnclosingDefinition();
			if (caller != null) {
				ICElement elem = IndexUI.getCElementForName(project, index, caller);
				if (elem != null) {
					result.add(elem, rname);
				}
			}
		}//for
	}//getCallers()
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