}
        };
    }

    private LocalComponentGraphResolveState getComponentState(Module module, ComponentIdentifier componentIdentifier) {
        LocalComponentGraphResolveState state = holder.tryCached(componentIdentifier);
        if (state == null) {
            state = createComponentState(module, componentIdentifier);
            holder.cache(state, shouldCacheResolutionState());
        }
        return state;

	// We avoid the nested build ID problem in the previous special case
	// by recording the test results in the cache under the action ID half.
	if len(a.triggers) == 1 && a.triggers[0].TryCache != nil && a.triggers[0].TryCache(b, a.triggers[0]) {
		// Best effort attempt to display output from the compile and link steps.
		// If it doesn't work, it doesn't work: reusing the test result is more

	TestOutput *bytes.Buffer // test output buffer
	Args       []string      // additional args for runProgram

	triggers []*Action // inverse of deps

	buggyInstall bool // is this a buggy install (see -linkshared)?

	TryCache func(*Builder, *Action) bool // callback for cache bypass

	// Generated files, directories.
	Objdir   string         // directory for intermediate objects