Use more descriptive names for API primitive types

Instead of exposing native C types to a public API that can be consumed by other
platforms, we are now using the following translation:

int64_t -> Integer
double  -> Float
bool    -> Boolean

10 files changed, 76 insertions, 71 deletions

diff --git a/src/nvim/api/buffer.c b/src/nvim/api/buffer.c
index f41e9a73fe..d3bec718aa 100644
--- a/src/nvim/api/buffer.c
+++ b/src/nvim/api/buffer.c
@@ -40,7 +40,7 @@ static void fix_cursor(linenr_T lo, linenr_T hi, linenr_T extra);
 // Normalizes 0-based indexes to buffer line numbers
 static int64_t normalize_index(buf_T *buf, int64_t index);
 
-int64_t buffer_get_length(Buffer buffer, Error *err)
+Integer buffer_get_length(Buffer buffer, Error *err)
 {
   buf_T *buf = find_buffer(buffer, err);
 
@@ -51,7 +51,7 @@ int64_t buffer_get_length(Buffer buffer, Error *err)
   return buf->b_ml.ml_line_count;
 }
 
-String buffer_get_line(Buffer buffer, int64_t index, Error *err)
+String buffer_get_line(Buffer buffer, Integer index, Error *err)
 {
   String rv = {.size = 0};
   StringArray slice = buffer_get_slice(buffer, index, index, true, true, err);
@@ -63,23 +63,23 @@ String buffer_get_line(Buffer buffer, int64_t index, Error *err)
   return rv;
 }
 
-void buffer_set_line(Buffer buffer, int64_t index, String line, Error *err)
+void buffer_set_line(Buffer buffer, Integer index, String line, Error *err)
 {
   StringArray array = {.items = &line, .size = 1};
   buffer_set_slice(buffer, index, index, true, true, array, err);
 }
 
-void buffer_del_line(Buffer buffer, int64_t index, Error *err)
+void buffer_del_line(Buffer buffer, Integer index, Error *err)
 {
   StringArray array = {.size = 0};
   buffer_set_slice(buffer, index, index, true, true, array, err);
 }
 
 StringArray buffer_get_slice(Buffer buffer,
-                             int64_t start,
-                             int64_t end,
-                             bool include_start,
-                             bool include_end,
+                             Integer start,
+                             Integer end,
+                             Boolean include_start,
+                             Boolean include_end,
                              Error *err)
 {
   StringArray rv = {.size = 0};
@@ -109,10 +109,10 @@ StringArray buffer_get_slice(Buffer buffer,
 }
 
 void buffer_set_slice(Buffer buffer,
-                      int64_t start,
-                      int64_t end,
-                      bool include_start,
-                      bool include_end,
+                      Integer start,
+                      Integer end,
+                      Boolean include_start,
+                      Boolean include_end,
                       StringArray replacement,
                       Error *err)
 {
@@ -310,15 +310,15 @@ void buffer_set_name(Buffer buffer, String name, Error *err)
   }
 }
 
-bool buffer_is_valid(Buffer buffer)
+Boolean buffer_is_valid(Buffer buffer)
 {
   Error stub = {.set = false};
   return find_buffer(buffer, &stub) != NULL;
 }
 
-void buffer_insert(Buffer buffer, int64_t index, StringArray lines, Error *err)
+void buffer_insert(Buffer buffer, Integer lnum, StringArray lines, Error *err)
 {
-  buffer_set_slice(buffer, index, index, false, true, lines, err);
+  buffer_set_slice(buffer, lnum, lnum, false, true, lines, err);
 }
 
 Position buffer_get_mark(Buffer buffer, String name, Error *err)
diff --git a/src/nvim/api/buffer.h b/src/nvim/api/buffer.h
index 59370b3c18..5f39589679 100644
--- a/src/nvim/api/buffer.h
+++ b/src/nvim/api/buffer.h
@@ -11,7 +11,7 @@
 /// @param buffer The buffer handle
 /// @param[out] err Details of an error that may have occurred
 /// @return The line count
-int64_t buffer_get_length(Buffer buffer, Error *err);
+Integer buffer_get_length(Buffer buffer, Error *err);
 
 /// Gets a buffer line
 ///
@@ -19,7 +19,7 @@ int64_t buffer_get_length(Buffer buffer, Error *err);
 /// @param index The line index
 /// @param[out] err Details of an error that may have occurred
 /// @return The line string
-String buffer_get_line(Buffer buffer, int64_t index, Error *err);
+String buffer_get_line(Buffer buffer, Integer index, Error *err);
 
 /// Sets a buffer line
 ///
@@ -27,14 +27,14 @@ String buffer_get_line(Buffer buffer, int64_t index, Error *err);
 /// @param index The line index
 /// @param line The new line.
 /// @param[out] err Details of an error that may have occurred
-void buffer_set_line(Buffer buffer, int64_t index, String line, Error *err);
+void buffer_set_line(Buffer buffer, Integer index, String line, Error *err);
 
 /// Deletes a buffer line
 ///
 /// @param buffer The buffer handle
 /// @param index The line index
 /// @param[out] err Details of an error that may have occurred
-void buffer_del_line(Buffer buffer, int64_t index, Error *err);
+void buffer_del_line(Buffer buffer, Integer index, Error *err);
 
 /// Retrieves a line range from the buffer
 ///
@@ -46,10 +46,10 @@ void buffer_del_line(Buffer buffer, int64_t index, Error *err);
 /// @param[out] err Details of an error that may have occurred
 /// @return An array of lines
 StringArray buffer_get_slice(Buffer buffer,
-                             int64_t start,
-                             int64_t end,
-                             bool include_start,
-                             bool include_end,
+                             Integer start,
+                             Integer end,
+                             Boolean include_start,
+                             Boolean include_end,
                              Error *err);
 
 /// Replaces a line range on the buffer
@@ -63,10 +63,10 @@ StringArray buffer_get_slice(Buffer buffer,
 ///        will simply delete the line range)
 /// @param[out] err Details of an error that may have occurred
 void buffer_set_slice(Buffer buffer,
-                      int64_t start,
-                      int64_t end,
-                      bool include_start,
-                      bool include_end,
+                      Integer start,
+                      Integer end,
+                      Boolean include_start,
+                      Boolean include_end,
                       StringArray replacement,
                       Error *err);
 
@@ -122,16 +122,16 @@ void buffer_set_name(Buffer buffer, String name, Error *err);
 ///
 /// @param buffer The buffer handle
 /// @return true if the buffer is valid, false otherwise
-bool buffer_is_valid(Buffer buffer);
+Boolean buffer_is_valid(Buffer buffer);
 
 /// Inserts a sequence of lines to a buffer at a certain index
 ///
 /// @param buffer The buffer handle
-/// @param lnum Insert the lines before `lnum`. If negative, it will append
+/// @param lnum Insert the lines after `lnum`. If negative, it will append
 ///        to the end of the buffer.
 /// @param lines An array of lines
 /// @param[out] err Details of an error that may have occurred
-void buffer_insert(Buffer buffer, int64_t index, StringArray lines, Error *err);
+void buffer_insert(Buffer buffer, Integer lnum, StringArray lines, Error *err);
 
 /// Return a tuple (row,col) representing the position of the named mark
 ///
diff --git a/src/nvim/api/defs.h b/src/nvim/api/defs.h
index 914ff3c5d5..3ee50310fb 100644
--- a/src/nvim/api/defs.h
+++ b/src/nvim/api/defs.h
@@ -2,6 +2,7 @@
 #define NVIM_API_DEFS_H
 
 #include <stdint.h>
+#include <stdbool.h>
 #include <string.h>
 
 // Basic types
@@ -10,14 +11,18 @@ typedef struct {
   bool set;
 } Error;
 
+typedef bool Boolean;
+typedef int64_t Integer;
+typedef double Float;
+
 typedef struct {
   char *data;
   size_t size;
 } String;
 
-typedef int64_t Buffer;
-typedef int64_t Window;
-typedef int64_t Tabpage;
+typedef Integer Buffer;
+typedef Integer Window;
+typedef Integer Tabpage;
 
 typedef struct object Object;
 
@@ -27,7 +32,7 @@ typedef struct {
 } StringArray;
 
 typedef struct {
-  int64_t row, col;
+  Integer row, col;
 } Position;
 
 typedef struct {
@@ -44,8 +49,8 @@ typedef struct {
 
 typedef enum {
   kObjectTypeNil,
-  kObjectTypeBool,
-  kObjectTypeInt,
+  kObjectTypeBoolean,
+  kObjectTypeInteger,
   kObjectTypeFloat,
   kObjectTypeString,
   kObjectTypeArray,
@@ -55,9 +60,9 @@ typedef enum {
 struct object {
   ObjectType type;
   union {
-    bool boolean;
-    int64_t integer;
-    double floating_point;
+    Boolean boolean;
+    Integer integer;
+    Float floating;
     String string;
     Array array;
     Dictionary dictionary;
diff --git a/src/nvim/api/helpers.c b/src/nvim/api/helpers.c
index 2f79bebeef..ea24e96a21 100644
--- a/src/nvim/api/helpers.c
+++ b/src/nvim/api/helpers.c
@@ -190,10 +190,10 @@ Object get_option_from(void *from, int type, String name, Error *err)
   }
 
   if (flags & SOPT_BOOL) {
-    rv.type = kObjectTypeBool;
+    rv.type = kObjectTypeBoolean;
     rv.data.boolean = numval ? true : false;
   } else if (flags & SOPT_NUM) {
-    rv.type = kObjectTypeInt;
+    rv.type = kObjectTypeInteger;
     rv.data.integer = numval;
   } else if (flags & SOPT_STRING) {
     if (stringval) {
@@ -242,7 +242,7 @@ void set_option_to(void *to, int type, String name, Object value, Error *err)
   int opt_flags = (type ? OPT_LOCAL : OPT_GLOBAL);
 
   if (flags & SOPT_BOOL) {
-    if (value.type != kObjectTypeBool) {
+    if (value.type != kObjectTypeBoolean) {
       set_api_error("option requires a boolean value", err);
       goto cleanup;
     }
@@ -250,7 +250,7 @@ void set_option_to(void *to, int type, String name, Object value, Error *err)
     set_option_value_for(key, val, NULL, opt_flags, type, to, err);
 
   } else if (flags & SOPT_NUM) {
-    if (value.type != kObjectTypeInt) {
+    if (value.type != kObjectTypeInteger) {
       set_api_error("option requires an integer value", err);
       goto cleanup;
     }
@@ -330,19 +330,19 @@ static bool object_to_vim(Object obj, typval_T *tv, Error *err)
       tv->vval.v_number = 0;
       break;
 
-    case kObjectTypeBool:
+    case kObjectTypeBoolean:
       tv->v_type = VAR_NUMBER;
       tv->vval.v_number = obj.data.boolean;
       break;
 
-    case kObjectTypeInt:
+    case kObjectTypeInteger:
       tv->v_type = VAR_NUMBER;
       tv->vval.v_number = obj.data.integer;
       break;
 
     case kObjectTypeFloat:
       tv->v_type = VAR_FLOAT;
-      tv->vval.v_float = obj.data.floating_point;
+      tv->vval.v_float = obj.data.floating;
       break;
 
     case kObjectTypeString:
@@ -431,13 +431,13 @@ static Object vim_to_object_rec(typval_T *obj, khash_t(Lookup) *lookup)
       break;
 
     case VAR_NUMBER:
-      rv.type = kObjectTypeInt;
+      rv.type = kObjectTypeInteger;
       rv.data.integer = obj->vval.v_number;
       break;
 
     case VAR_FLOAT:
       rv.type = kObjectTypeFloat;
-      rv.data.floating_point = obj->vval.v_float;
+      rv.data.floating = obj->vval.v_float;
       break;
 
     case VAR_LIST:
diff --git a/src/nvim/api/tabpage.c b/src/nvim/api/tabpage.c
index c577453b37..fc50723ba5 100644
--- a/src/nvim/api/tabpage.c
+++ b/src/nvim/api/tabpage.c
@@ -7,9 +7,9 @@
 #include "nvim/api/defs.h"
 #include "nvim/api/helpers.h"
 
-int64_t tabpage_get_window_count(Tabpage tabpage, Error *err)
+Integer tabpage_get_window_count(Tabpage tabpage, Error *err)
 {
-  uint64_t rv = 0;
+  Integer rv = 0;
   tabpage_T *tab = find_tab(tabpage, err);
 
   if (!tab) {
@@ -80,7 +80,7 @@ Window tabpage_get_window(Tabpage tabpage, Error *err)
   }
 }
 
-bool tabpage_is_valid(Tabpage tabpage)
+Boolean tabpage_is_valid(Tabpage tabpage)
 {
   Error stub = {.set = false};
   return find_tab(tabpage, &stub) != NULL;
diff --git a/src/nvim/api/tabpage.h b/src/nvim/api/tabpage.h
index 54ed70a6f6..ef049fb644 100644
--- a/src/nvim/api/tabpage.h
+++ b/src/nvim/api/tabpage.h
@@ -11,7 +11,7 @@
 /// @param tabpage The tabpage
 /// @param[out] err Details of an error that may have occurred
 /// @return The number of windows in `tabpage`
-int64_t tabpage_get_window_count(Tabpage tabpage, Error *err);
+Integer tabpage_get_window_count(Tabpage tabpage, Error *err);
 
 /// Gets a tabpage variable
 ///
@@ -41,7 +41,7 @@ Window tabpage_get_window(Tabpage tabpage, Error *err);
 ///
 /// @param tabpage The tab page handle
 /// @return true if the tab page is valid, false otherwise
-bool tabpage_is_valid(Tabpage tabpage);
+Boolean tabpage_is_valid(Tabpage tabpage);
 
 #endif  // NVIM_API_TABPAGE_H
 
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index 44f805ed38..bdd48336d1 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -66,7 +66,7 @@ Object vim_eval(String str, Error *err)
   return rv;
 }
 
-int64_t vim_strwidth(String str)
+Integer vim_strwidth(String str)
 {
   return mb_string2cells((char_u *)str.data, str.size);
 }
@@ -177,7 +177,7 @@ void vim_err_write(String str)
   write_msg(str, true);
 }
 
-int64_t vim_get_buffer_count(void)
+Integer vim_get_buffer_count(void)
 {
   buf_T *b = firstbuf;
   uint64_t n = 0;
@@ -212,7 +212,7 @@ void vim_set_current_buffer(Buffer buffer, Error *err)
   try_end(err);
 }
 
-int64_t vim_get_window_count(void)
+Integer vim_get_window_count(void)
 {
   tabpage_T *tp;
   win_T *wp;
@@ -265,7 +265,7 @@ void vim_set_current_window(Window window, Error *err)
   try_end(err);
 }
 
-int64_t vim_get_tabpage_count(void)
+Integer vim_get_tabpage_count(void)
 {
   tabpage_T *tp = first_tabpage;
   uint64_t rv = 0;
diff --git a/src/nvim/api/vim.h b/src/nvim/api/vim.h
index 3db9d4d6f6..17a17c28c7 100644
--- a/src/nvim/api/vim.h
+++ b/src/nvim/api/vim.h
@@ -31,7 +31,7 @@ Object vim_eval(String str, Error *err);
 ///
 /// @param str Some text
 /// @return The number of cells
-int64_t vim_strwidth(String str);
+Integer vim_strwidth(String str);
 
 /// Returns a list of paths contained in 'runtimepath'
 ///
@@ -110,7 +110,7 @@ void vim_err_write(String str);
 /// Gets the number of buffers
 ///
 /// @return The number of buffers
-int64_t vim_get_buffer_count(void);
+Integer vim_get_buffer_count(void);
 
 /// Return the current buffer
 ///
@@ -126,7 +126,7 @@ void vim_set_current_buffer(Buffer buffer, Error *err);
 /// Gets the number of windows
 ///
 /// @return The number of windows
-int64_t vim_get_window_count(void);
+Integer vim_get_window_count(void);
 
 /// Return the current window
 ///
@@ -141,7 +141,7 @@ void vim_set_current_window(Window window, Error *err);
 /// Gets the number of tab pages
 ///
 /// @return The number of tab pages
-int64_t vim_get_tabpage_count(void);
+Integer vim_get_tabpage_count(void);
 
 /// Return the current tab page
 ///
diff --git a/src/nvim/api/window.c b/src/nvim/api/window.c
index 7196d949bb..b0d2838640 100644
--- a/src/nvim/api/window.c
+++ b/src/nvim/api/window.c
@@ -56,7 +56,7 @@ void window_set_cursor(Window window, Position pos, Error *err)
   update_screen(VALID);
 }
 
-int64_t window_get_height(Window window, Error *err)
+Integer window_get_height(Window window, Error *err)
 {
   win_T *win = find_window(window, err);
 
@@ -67,7 +67,7 @@ int64_t window_get_height(Window window, Error *err)
   return win->w_height;
 }
 
-void window_set_height(Window window, int64_t height, Error *err)
+void window_set_height(Window window, Integer height, Error *err)
 {
   win_T *win = find_window(window, err);
 
@@ -83,7 +83,7 @@ void window_set_height(Window window, int64_t height, Error *err)
   try_end(err);
 }
 
-int64_t window_get_width(Window window, Error *err)
+Integer window_get_width(Window window, Error *err)
 {
   win_T *win = find_window(window, err);
 
@@ -94,7 +94,7 @@ int64_t window_get_width(Window window, Error *err)
   return win->w_width;
 }
 
-void window_set_width(Window window, int64_t width, Error *err)
+void window_set_width(Window window, Integer width, Error *err)
 {
   win_T *win = find_window(window, err);
 
@@ -176,7 +176,7 @@ Tabpage window_get_tabpage(Window window, Error *err)
   return 0;
 }
 
-bool window_is_valid(Window window)
+Boolean window_is_valid(Window window)
 {
   Error stub = {.set = false};
   return find_window(window, &stub) != NULL;
diff --git a/src/nvim/api/window.h b/src/nvim/api/window.h
index f0e485884a..525b7f86c7 100644
--- a/src/nvim/api/window.h
+++ b/src/nvim/api/window.h
@@ -32,7 +32,7 @@ void window_set_cursor(Window window, Position pos, Error *err);
 /// @param window The window handle
 /// @param[out] err Details of an error that may have occurred
 /// @return the height in rows
-int64_t window_get_height(Window window, Error *err);
+Integer window_get_height(Window window, Error *err);
 
 /// Sets the window height. This will only succeed if the screen is split
 /// horizontally.
@@ -40,14 +40,14 @@ int64_t window_get_height(Window window, Error *err);
 /// @param window The window handle
 /// @param height the new height in rows
 /// @param[out] err Details of an error that may have occurred
-void window_set_height(Window window, int64_t height, Error *err);
+void window_set_height(Window window, Integer height, Error *err);
 
 /// Gets the window width
 ///
 /// @param window The window handle
 /// @param[out] err Details of an error that may have occurred
 /// @return the width in columns
-int64_t window_get_width(Window window, Error *err);
+Integer window_get_width(Window window, Error *err);
 
 /// Sets the window width. This will only succeed if the screen is split
 /// vertically.
@@ -55,7 +55,7 @@ int64_t window_get_width(Window window, Error *err);
 /// @param window The window handle
 /// @param width the new width in columns
 /// @param[out] err Details of an error that may have occurred
-void window_set_width(Window window, int64_t width, Error *err);
+void window_set_width(Window window, Integer width, Error *err);
 
 /// Gets a window variable
 ///
@@ -109,7 +109,7 @@ Tabpage window_get_tabpage(Window window, Error *err);
 ///
 /// @param window The window handle
 /// @return true if the window is valid, false otherwise
-bool window_is_valid(Window window);
+Boolean window_is_valid(Window window);
 
 #endif  // NVIM_API_WINDOW_H