handle syntax only code as missing

private/format-utils.rkt

@@ -81,8 +81,9 @@
   (let loop ([stx stx] [first? #t])
     (define (loop* stx) (loop stx #f))
     (syntax-parse stx
-      #:datum-literals (module module* module+)
-      [((~or module module* module+) e ...)
+      #:datum-literals (module module* module+ begin-for-syntax define-syntax define-syntaxes)
+      [((~or module module* module+ begin-for-syntax define-syntax define-syntaxes)
+        e ...)
        #:when (not first?)
        (define ?start (syntax-position stx))
        (when ?start

raco.rkt

@@ -83,7 +83,7 @@
     (flatten
      (for/list ([f (in-list files)])
        (if (not (directory-exists? f))
-           f
+           (->absolute f)
            (parameterize ([current-directory
                            (if (absolute-path? f)
                                f
@@ -190,7 +190,9 @@
 ;; Coverage -> Coverage
 (define (remove-excluded-paths cover paths)
   (for/hash ([(k v) (in-hash cover)]
-             #:unless (is-excluded-path? k paths))
+             #:unless (and (is-excluded-path? k paths)
+                           (vprintf "excluding path ~s from output\n" k)))
+    (vprintf "including path ~s in output\n" k)
     (values k v)))
 
 (module+ test

scribblings/api.scrbl

@@ -48,8 +48,9 @@ in that file is covered. By default it checks character locations.
 
 There are three possible results:
 @itemize[@item{@racket['irrelevant] --- The location is not considered relevant to coverage information.
-It is either not in the coverage information, is in a submodule, or lexes (in the sense of that languages
-@racket[_color-lexer]) as a comment or whitespace.}
+It is either not in the coverage information; is in a submodule; is a @racket[define-syntax],
+@racket[define-syntaxes], or @racket[begin-for-syntax] form;
+or lexes (in the sense of that languages, @racket[_color-lexer]) as a comment or whitespace.}
 @item{@racket['covered] --- The location is not @racket['irrelevant] and is
 covered}
 @item{@racket['uncovered] --- The location is not @racket['uncovered]

tests/main.rkt

@@ -64,7 +64,7 @@
      (<= start i (+ start range))]))
 
 (module+ test
-  (define-runtime-path-list test-dirs '("basic" "simple-multi"))
+  (define-runtime-path-list test-dirs '("basic" "simple-multi" "syntax"))
   (for-each (compose test-dir path->string) test-dirs))
 
 (module+ test

tests/syntax/syntax.rkt

@@ -0,0 +1,2 @@
+#lang racket
+(begin-for-syntax 5)

tests/syntax/syntax.rktl

@@ -0,0 +1,2 @@
+((1 12))
+()