private static ModuleTree ResolveModule(ModuleTree parentTree, string relativeName, AnalysisUnit unit)
{
ModuleTree curTree = parentTree;
var components = ModuleTable.GetPathComponents(relativeName);
for (int i = 0; i < components.Length; i++)
{
var comp = components[i];
if (curTree == null)
{
return(null);
}
if (comp == "." || comp == "")
{
continue;
}
else if (comp == "..")
{
curTree = curTree.Parent;
continue;
}
ModuleTree nextTree;
if (i == components.Length - 1)
{
nextTree = curTree.GetChild(comp + ".js", unit);
if (nextTree.ProjectEntry != null)
{
return(nextTree);
}
}
nextTree = curTree.GetChild(comp, unit);
if (nextTree.Children.Count > 0 || nextTree.ProjectEntry != null)
{
curTree = nextTree;
continue;
}
return(null);
}
return(curTree);
}
private IAnalysisSet RequireModule(Node node, AnalysisUnit unit, string moduleName, ModuleTree relativeTo)
{
if (moduleName.StartsWith("./") || moduleName.StartsWith("../"))
{
// search relative to our declaring module.
return(GetExports(
node,
unit,
ResolveModule(relativeTo, moduleName, unit)
));
}
else
{
// must be in node_modules, search in the current directory
// and up through our parents
do
{
var nodeModules = relativeTo.GetChild(AnalysisConstants.NodeModulesFolder, unit);
var curTree = ResolveModule(nodeModules, moduleName, unit);
if (curTree != null)
{
return(GetExports(node, unit, curTree));
}
relativeTo = relativeTo.Parent;
} while (relativeTo != null);
}
return(AnalysisSet.Empty);
}
internal ModuleTree RequireModule(AnalysisUnit unit, string moduleName, ModuleTree relativeTo)
{
ModuleTree curTree = null;
if (moduleName.StartsWith("./") || moduleName.StartsWith("../"))
{
// search relative to our declaring module.
curTree = ResolveModule(relativeTo, moduleName, unit);
}
else
{
// must be in node_modules, search in the current directory
// and up through our parents
do
{
var nodeModules = relativeTo.GetChild(AnalysisConstants.NodeModulesFolder, unit);
curTree = ResolveModule(nodeModules, moduleName, unit);
relativeTo = relativeTo.Parent;
} while (relativeTo != null && curTree == null);
}
return(curTree);
}