Merge branch 'master' of https://github.com/munificent/wren

Makefile

@@ -20,7 +20,7 @@ DEBUG_LIB_OBJECTS = $(subst build/debug/main.o,,$(DEBUG_OBJECTS))
 RELEASE_LIB_OBJECTS = $(subst build/release/main.o,,$(RELEASE_OBJECTS))
 RELEASE_CPP_LIB_OBJECTS = $(subst build/release-cpp/main.o,,$(RELEASE_CPP_OBJECTS))
 
-.PHONY: all clean test builtin docs watchdocs
+.PHONY: all clean test builtin docs watchdocs prep
 
 all: release
 

include/wren.h

@@ -3,6 +3,7 @@
 
 #include <stdlib.h>
 #include <stdint.h>
+#include <stdbool.h>
 
 typedef struct WrenVM WrenVM;
 
@@ -148,4 +149,9 @@ void wrenReturnNull(WrenVM* vm);
 // [text] will be calculated using `strlen()`.
 void wrenReturnString(WrenVM* vm, const char* text, int length);
 
+// Provides a boolean return value for a foreign call. This must only be called
+// within a function provided to [wrenDefineMethod]. Once this is called, the
+// foreign call is done, and no more arguments can be read or return calls made.
+void wrenReturnBool(WrenVM* vm, bool value);
+
 #endif

src/wren_vm.c

@@ -1236,3 +1236,11 @@ void wrenReturnString(WrenVM* vm, const char* text, int length)
   *vm->foreignCallSlot = wrenNewString(vm, text, size);
   vm->foreignCallSlot = NULL;
 }
+
+void wrenReturnBool(WrenVM* vm, bool value)
+{
+  ASSERT(vm->foreignCallSlot != NULL, "Must be in foreign call.");
+
+  *vm->foreignCallSlot = BOOL_VAL(value);
+  vm->foreignCallSlot = NULL;
+}