Merge #15293 Vimscript "method" syntax

Port VimL's method call syntax - vim-patch:8.1.{1638,1800,1803,1807,1809,1816,1820,1821,1828,1834,1835,1861,1863,1878,1879,1888,1909,1911,1912}

1 files changed, 26 insertions, 0 deletions

diff --git a/src/nvim/eval/userfunc.h b/src/nvim/eval/userfunc.h
index e8ad0bf1da..3f111343d2 100644
--- a/src/nvim/eval/userfunc.h
+++ b/src/nvim/eval/userfunc.h
@@ -28,11 +28,37 @@ typedef enum {
   ERROR_OTHER,
   ERROR_BOTH,
   ERROR_DELETED,
+  ERROR_NOTMETHOD,
 } FnameTransError;
 
+/// Used in funcexe_T. Returns the new argcount.
 typedef int (*ArgvFunc)(int current_argcount, typval_T *argv, int argskip,
                         int called_func_argcount);
 
+/// Structure passed between functions dealing with function call execution.
+typedef struct {
+  ArgvFunc argv_func;  ///< when not NULL, can be used to fill in arguments only
+                       ///< when the invoked function uses them
+  linenr_T firstline;  ///< first line of range
+  linenr_T lastline;   ///< last line of range
+  bool *doesrange;     ///< [out] if not NULL: function handled range
+  bool evaluate;       ///< actually evaluate expressions
+  partial_T *partial;  ///< for extra arguments
+  dict_T *selfdict;    ///< Dictionary for "self"
+  typval_T *basetv;    ///< base for base->method()
+} funcexe_T;
+
+#define FUNCEXE_INIT (funcexe_T) { \
+  .argv_func = NULL, \
+  .firstline = 0, \
+  .lastline = 0, \
+  .doesrange = NULL, \
+  .evaluate = false, \
+  .partial = NULL, \
+  .selfdict = NULL, \
+  .basetv = NULL, \
+}
+
 #define FUNCARG(fp, j)  ((char_u **)(fp->uf_args.ga_data))[j]
 #define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j]