Split out excludes into its own header

Author: kddnewton

include/prism/defines.h

@@ -20,6 +20,7 @@
 #include "prism/internal/bit.h"
 
 #include "prism/allocator.h"
+#include "prism/excludes.h"
 #include "prism/files.h"
 
 #include <ctype.h>
@@ -79,24 +80,6 @@
     #define PRISM_ISINF(x) isinf(x)
 #endif
 
-/**
- * If PRISM_BUILD_MINIMAL is defined, then we're going to define every possible
- * switch that will turn off certain features of prism.
- */
-#ifdef PRISM_BUILD_MINIMAL
-    /** Exclude the serialization API. */
-    #define PRISM_EXCLUDE_SERIALIZATION
-
-    /** Exclude the JSON serialization API. */
-    #define PRISM_EXCLUDE_JSON
-
-    /** Exclude the prettyprint API. */
-    #define PRISM_EXCLUDE_PRETTYPRINT
-
-    /** Exclude the full set of encodings, using the minimal only. */
-    #define PRISM_ENCODING_EXCLUDE_FULL
-#endif
-
 /**
  * Support PRISM_LIKELY and PRISM_UNLIKELY to help the compiler optimize its
  * branch predication.

include/prism/excludes.h

@@ -0,0 +1,29 @@
+/**
+ * @file excludes.h
+ *
+ * A header file that defines macros to exclude certain features of the prism
+ * library. This is useful for reducing the size of the library when certain
+ * features are not needed.
+ */
+#ifndef PRISM_EXCLUDES_H
+#define PRISM_EXCLUDES_H
+
+/**
+ * If PRISM_BUILD_MINIMAL is defined, then we're going to define every possible
+ * switch that will turn off certain features of prism.
+ */
+#ifdef PRISM_BUILD_MINIMAL
+    /** Exclude the serialization API. */
+    #define PRISM_EXCLUDE_SERIALIZATION
+
+    /** Exclude the JSON serialization API. */
+    #define PRISM_EXCLUDE_JSON
+
+    /** Exclude the prettyprint API. */
+    #define PRISM_EXCLUDE_PRETTYPRINT
+
+    /** Exclude the full set of encodings, using the minimal only. */
+    #define PRISM_ENCODING_EXCLUDE_FULL
+#endif
+
+#endif

include/prism/prettyprint.h

@@ -6,16 +6,14 @@
 #ifndef PRISM_PRETTYPRINT_H
 #define PRISM_PRETTYPRINT_H
 
-#include "prism/defines.h"
+#include "prism/excludes.h"
 
 #ifdef PRISM_EXCLUDE_PRETTYPRINT
 
-void pm_prettyprint(void);
+#define pm_prettyprint(output_buffer_, parser_, node_)
 
 #else
 
-#include <stdio.h>
-
 #include "prism/ast.h"
 #include "prism/buffer.h"
 #include "prism/parser.h"

prism.gemspec

@@ -62,6 +62,7 @@ Gem::Specification.new do |spec|
     "include/prism/defines.h",
     "include/prism/diagnostic.h",
     "include/prism/encoding.h",
+    "include/prism/excludes.h",
     "include/prism/files.h",
     "include/prism/integer.h",
     "include/prism/line_offset_list.h",