Add support for per-Module compilation options.

Nothing uses these now, but when we integrate Stephen's PR200, we'll need a way to selectively enable some strict connection checks on a file by file basis. We plan to do this using package imports which will define suitable compilation options.

1 files changed, 16 insertions, 0 deletions

diff --git a/chiselFrontend/src/main/scala/chisel3/internal/CompileOptions.scala b/chiselFrontend/src/main/scala/chisel3/internal/CompileOptions.scala
new file mode 100644
index 00000000..12789855
--- /dev/null
+++ b/chiselFrontend/src/main/scala/chisel3/internal/CompileOptions.scala
@@ -0,0 +1,16 @@
+// See LICENSE for license details.
+
+package chisel3.internal
+
+/** Initialize compilation options from a string map.
+  *
+  * @param optionsMap the map from "option" to "value"
+  */
+class CompileOptions(optionsMap: Map[String, String]) {
+  // The default for settings related to "strictness".
+  val strictDefault: String = optionsMap.getOrElse("strict", "false")
+  // Should Bundle connections require a strict match of fields.
+  // If true and the same fields aren't present in both source and sink, a MissingFieldException,
+  // MissingLeftFieldException, or MissingRightFieldException will be thrown.
+  val connectFieldsMustMatch: Boolean = optionsMap.getOrElse("connectFieldsMustMatch", strictDefault).toBoolean
+}