public static SymbolStat SearchCFG(PhpCompilation compilation, ControlFlowGraph cfg, int position)
{
var visitor = new SourceSymbolSearcher(position)
{
DeclaringCompilation = compilation,
};
visitor.VisitCFG(cfg);
return(visitor._result);
}
public static SourceSymbolSearcher.SymbolStat FindDefinition(PhpCompilation compilation, string filepath, int line, int character)
{
var tree = compilation.SyntaxTrees.FirstOrDefault(t => t.FilePath == filepath);
if (tree == null)
{
return(null);
}
// Get the position in the file
int position = tree.GetOffset(new LinePosition(line, character));
if (position == -1)
{
return(null);
}
// Find the bound node corresponding to the text position
SourceSymbolSearcher.SymbolStat searchResult = null;
foreach (var routine in compilation.GetUserDeclaredRoutinesInFile(tree))
{
// Consider only routines containing the position being searched (<Main> has span [0..0])
if (routine.IsGlobalScope || routine.GetSpan().Contains(position))
{
// Search parameters at first
searchResult = SourceSymbolSearcher.SearchParameters(routine, position);
if (searchResult != null)
{
break;
}
// Search the routine body
searchResult = SourceSymbolSearcher.SearchCFG(compilation, routine.ControlFlowGraph, position);
if (searchResult != null)
{
break;
}
}
}
return(searchResult);
}