# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1626012903 -7200
# Node ID 9ead67e3c696a794c2f73a59ba62bf77588d9f04
# Parent  a7588e54bd5d7c867114fa10caf1102d7589b84a
patch 8.2.3144: Vim9: no error when using an invalid value for a line number

Commit: https://github.com/vim/vim/commit/0f1227f7d5a3e368f61d396c1640088c079fef91
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sun Jul 11 16:01:58 2021 +0200

    patch 8.2.3144: Vim9: no error when using an invalid value for a line number

    Problem:    Vim9: no error when using an invalid value for a line number.
    Solution:   Give an error if the string value is not recognized.
                (closes #8536)

diff --git a/src/errors.h b/src/errors.h
--- a/src/errors.h
+++ b/src/errors.h
@@ -498,3 +498,5 @@ EXTERN char e_expression_without_effect_
 	INIT(= N_("E1207: Expression without an effect: %s"));
 EXTERN char e_complete_used_without_nargs[]
 	INIT(= N_("E1208: -complete used without -nargs"));
+EXTERN char e_invalid_value_for_line_number_str[]
+	INIT(= N_("E1209: Invalid value for a line number: \"%s\""));
diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -5376,6 +5376,8 @@ var2fpos(
 	}
 	return &pos;
     }
+    if (in_vim9script())
+	semsg(_(e_invalid_value_for_line_number_str), name);
     return NULL;
 }
 
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -474,7 +474,7 @@ def Test_cursor()
   var lines =<< trim END
     cursor('2', 1)
   END
-  CheckDefExecAndScriptFailure(lines, 'E475:')
+  CheckDefExecAndScriptFailure(lines, 'E1209:')
 enddef
 
 def Test_debugbreak()
@@ -1036,6 +1036,25 @@ def Test_getjumplist()
   CheckDefFailure(['getjumplist(1, "x")'], 'E1013: Argument 2: type mismatch, expected number but got string')
 enddef
 
+def Test_getline()
+  var lines =<< trim END
+      new
+      setline(1, ['hello', 'there', 'again'])
+      assert_equal('hello', getline(1))
+      assert_equal('hello', getline('.'))
+
+      normal 2Gvjv
+      assert_equal('there', getline("'<"))
+      assert_equal('again', getline("'>"))
+  END
+  CheckDefAndScriptSuccess(lines)
+
+  lines =<< trim END
+      echo getline('1')
+  END
+  CheckDefExecAndScriptFailure(lines, 'E1209:')
+enddef
+
 def Test_getmarklist()
   CheckDefFailure(['getmarklist([])'], 'E1013: Argument 1: type mismatch, expected string but got list<unknown>')
   assert_equal([], getmarklist(10000))
@@ -1049,7 +1068,7 @@ enddef
 def Test_getpos()
   CheckDefFailure(['getpos(10)'], 'E1013: Argument 1: type mismatch, expected string but got number')
   assert_equal([0, 1, 1, 0], getpos('.'))
-  assert_equal([0, 0, 0, 0], getpos('a'))
+  CheckDefExecFailure(['getpos("a")'], 'E1209:')
 enddef
 
 def Test_getqflist()
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3144,
+/**/
     3143,
 /**/
     3142,