From: Mark Wooding <mdw@distorted.org.uk>
Date: Sat, 25 Mar 2017 18:12:36 +0000 (+0000)
Subject: src/final.lisp (test-module): Optionally clear the decks before parsing.
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/sod/commitdiff_plain/8ca4a019fd9fd7bf037b928116d5bf8fb57407ba

src/final.lisp (test-module): Optionally clear the decks before parsing.
---

diff --git a/doc/misc.tex b/doc/misc.tex
index ba76cd8..e97fcb0 100644
--- a/doc/misc.tex
+++ b/doc/misc.tex
@@ -568,7 +568,7 @@ These symbols are defined in the @!optparse| package.
 \begin{describe}{var}{*debugout-pathname*}
 \end{describe}
 
-\begin{describe}{fun}{test-module @<path> \&key :reason @> @<status>}
+\begin{describe}{fun}{test-module @<path> \&key :reason :clear @> @<status>}
 \end{describe}
 
 \begin{describe}{fun}
diff --git a/src/final.lisp b/src/final.lisp
index b98acd1..0528491 100644
--- a/src/final.lisp
+++ b/src/final.lisp
@@ -39,14 +39,17 @@ (export '*debugout-pathname*)
 (defvar *debugout-pathname* #p"debugout.c")
 
 (export 'test-module)
-(defun test-module (path &key reason)
+(defun test-module (path &key reason clear)
   "Read a module from PATH, to exercise the machinery.
 
+   If CLEAR is non-nil, then reset the translator's state before proceeding.
+
    If REASON is non-nil, then output the module to `*debugout-pathname*' with
    that REASON.
 
    Return a two-element list (NERROR NWARNING) of the number of errors and
    warnings encountered while processing the module."
+  (when clear (clear-the-decks))
   (multiple-value-bind (module nerror nwarning)
       (count-and-report-errors () (read-module path))
     (when (and module reason)