diff options
Diffstat (limited to 'chiselFrontend/src/main/scala/chisel3/internal')
| -rw-r--r-- | chiselFrontend/src/main/scala/chisel3/internal/Builder.scala | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala b/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala index 147fa7d4..e0cbf302 100644 --- a/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala +++ b/chiselFrontend/src/main/scala/chisel3/internal/Builder.scala @@ -21,18 +21,20 @@ private[chisel3] class Namespace(keywords: Set[String]) { if (this contains tryName) rename(n) else tryName } - private def sanitize(s: String): String = { + private def sanitize(s: String, leadingDigitOk: Boolean = false): String = { // TODO what character set does FIRRTL truly support? using ANSI C for now def legalStart(c: Char) = (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' def legal(c: Char) = legalStart(c) || (c >= '0' && c <= '9') val res = s filter legal - if (res.isEmpty || !legalStart(res.head)) s"_$res" else res + val headOk = (!res.isEmpty) && (leadingDigitOk || legalStart(res.head)) + if (headOk) res else s"_$res" } def contains(elem: String): Boolean = names.contains(elem) - def name(elem: String): String = { - val sanitized = sanitize(elem) + // leadingDigitOk is for use in fields of Records + def name(elem: String, leadingDigitOk: Boolean = false): String = { + val sanitized = sanitize(elem, leadingDigitOk) if (this contains sanitized) { name(rename(sanitized)) } else { |