/// <summary>
/// Resolves new VS macros, like $(SolutionDir), found in include or assembly directives.
/// </summary>
/// <param name="macros">The list of macro names (eg SolutionDir) to resolve.</param>
/// <returns>Whether at least one macro has been processed.</returns>
private bool ResolveMacros([NotNull] IEnumerable <string> macros)
{
bool hasChanges = false;
IVsBuildMacroInfo vsBuildMacroInfo = null;
foreach (string addedMacro in macros)
{
if (vsBuildMacroInfo == null)
{
vsBuildMacroInfo = TryGetVsBuildMacroInfo();
if (vsBuildMacroInfo == null)
{
Logger.LogError("Couldn't get IVsBuildMacroInfo");
break;
}
}
hasChanges = true;
string value;
bool succeeded = HResultHelpers.SUCCEEDED(vsBuildMacroInfo.GetBuildMacroValue(addedMacro, out value)) && !String.IsNullOrEmpty(value);
if (!succeeded)
{
value = MSBuildExtensions.GetStringValue(TryGetVsHierarchy(), addedMacro, null);
succeeded = !String.IsNullOrEmpty(value);
}
lock (_resolvedMacros) {
if (succeeded)
{
_resolvedMacros[addedMacro] = value;
}
else
{
_resolvedMacros.Remove(addedMacro);
}
}
}
return(hasChanges);
}