func()

in parser/parse.go [382:440]
39 lines of code
12 McCabe index (conditional complexity)

func (b *Builder) importPackage(dir string, userRequested bool) (*tc.Package, error) {
	klog.V(5).Infof("importPackage %s", dir)

	var pkgPath = importPathString(dir)

	// Get the canonical path if we can.
	if buildPkg, _ := b.getLoadedBuildPackage(dir); buildPkg != nil {
		canonicalPackage := canonicalizeImportPath(buildPkg.ImportPath)
		klog.V(5).Infof("importPackage %s, canonical path is %s", dir, canonicalPackage)
		pkgPath = canonicalPackage
	}

	// If we have not seen this before, process it now.
	ignoreError := false
	if _, found := b.parsed[pkgPath]; !found {
		// Ignore errors in paths that we're importing solely because
		// they're referenced by other packages.
		ignoreError = true

		// Add it.
		if err := b.addDir(dir, userRequested); err != nil {
			if isErrPackageNotFound(err) {
				klog.V(6).Info(err)
				return nil, nil
			}

			return nil, err
		}

		// Get the canonical path now that it has been added.
		if buildPkg, _ := b.getLoadedBuildPackage(dir); buildPkg != nil {
			canonicalPackage := canonicalizeImportPath(buildPkg.ImportPath)
			klog.V(5).Infof("importPackage %s, canonical path is %s", dir, canonicalPackage)
			pkgPath = canonicalPackage
		}
	}

	// If it was previously known, just check that the user-requestedness hasn't
	// changed.
	b.userRequested[pkgPath] = userRequested || b.userRequested[pkgPath]

	// Run the type checker.  We may end up doing this to pkgs that are already
	// done, or are in the queue to be done later, but it will short-circuit,
	// and we can't miss pkgs that are only depended on.
	pkg, err := b.typeCheckPackage(pkgPath, !ignoreError)
	if err != nil {
		switch {
		case ignoreError && pkg != nil:
			klog.V(4).Infof("type checking encountered some issues in %q, but ignoring.\n", pkgPath)
		case !ignoreError && pkg != nil:
			klog.V(3).Infof("type checking encountered some errors in %q\n", pkgPath)
			return nil, err
		default:
			return nil, err
		}
	}

	return pkg, nil
}