eval: Move get_float_arg to typval.h

Assuming `inline` is there for a reason, so it is kept and function was moved to
typval.h and not to typval.c which does not have problems with #including
message.h.

1 files changed, 27 insertions, 0 deletions

diff --git a/src/nvim/eval/typval.h b/src/nvim/eval/typval.h
index 6929e37e43..0eef2ddaac 100644
--- a/src/nvim/eval/typval.h
+++ b/src/nvim/eval/typval.h
@@ -13,6 +13,7 @@
 #include "nvim/lib/queue.h"
 #include "nvim/profile.h"  // for proftime_T
 #include "nvim/pos.h"      // for linenr_T
+#include "nvim/gettext.h"
 
 /// Type used for VimL VAR_NUMBER values
 typedef int varnumber_T;
@@ -370,6 +371,32 @@ extern bool tv_in_free_unref_items;
       } \
     })
 
+static inline bool tv_get_float(const typval_T *const tv, float_T *const ret_f)
+  REAL_FATTR_NONNULL_ALL REAL_FATTR_WARN_UNUSED_RESULT;
+
+// FIXME circular dependency, cannot import message.h.
+bool emsgf(const char *const fmt, ...);
+
+/// Get the float value
+///
+/// @param[in]  tv  VimL object to get value from.
+/// @param[out]  ret_f  Location where resulting float is stored.
+///
+/// @return true in case of success, false if tv is not a number or float.
+static inline bool tv_get_float(const typval_T *const tv, float_T *const ret_f)
+{
+  if (tv->v_type == VAR_FLOAT) {
+    *ret_f = tv->vval.v_float;
+    return true;
+  }
+  if (tv->v_type == VAR_NUMBER) {
+    *ret_f = (float_T)tv->vval.v_number;
+    return true;
+  }
+  emsgf(_("E808: Number or Float required"));
+  return false;
+}
+
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "eval/typval.h.generated.h"
 #endif