Function ModuleSpecifierToValidIdentifier

internal/ls/lsutil/utilities.go:120–153

(moduleSpecifier string, forceCapitalize bool)

}

func ModuleSpecifierToValidIdentifier(moduleSpecifier string, forceCapitalize bool) string {
	baseName := tspath.GetBaseFileName(strings.TrimSuffix(tspath.RemoveFileExtension(moduleSpecifier), "/index"))
	res := []rune{}
	lastCharWasValid := true
	baseNameRunes := []rune(baseName)
	if len(baseNameRunes) > 0 && scanner.IsIdentifierStart(baseNameRunes[0]) {
		if forceCapitalize {
			res = append(res, unicode.ToUpper(baseNameRunes[0]))
		} else {
			res = append(res, baseNameRunes[0])
		}
	} else {
		lastCharWasValid = false
	}

	for i := 1; i < len(baseNameRunes); i++ {
		isValid := scanner.IsIdentifierPart(baseNameRunes[i])
		if isValid {
			if !lastCharWasValid {
				res = append(res, unicode.ToUpper(baseNameRunes[i]))
			} else {
				res = append(res, baseNameRunes[i])
			}
		}
		lastCharWasValid = isValid
	}

	// Need `"_"` to ensure result isn't empty.
	resString := string(res)
	if resString != "" && !IsNonContextualKeyword(scanner.StringToToken(resString)) {
		return resString
	}
	return "_" + resString
}

func IsNonContextualKeyword(token ast.Kind) bool {
	return ast.IsKeywordKind(token) && !ast.IsContextualKeyword(token)