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diff src/testdir/test_expr.vim @ 33564:fd8501e21b7d v9.0.2027

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patch 9.0.2027: Vim9: no support for bitwise operators in lambda funcs Commit: https://github.com/vim/vim/commit/de3295dd0c68a8d7540a751a99ee056fd5b9a7a4 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Sun Oct 15 09:44:50 2023 +0200 patch 9.0.2027: Vim9: no support for bitwise operators in lambda funcs Problem: Vim9: no support for bitwise operators in lambda funcs Solution: move "evaluate" assignment a bit up in order to decide to perform bitwise operations closes: #13342 closes: #13345 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
author Christian Brabandt <cb@256bit.org>
date Sun, 15 Oct 2023 09:48:28 +0200
parents 2d5e8c46508b
children 4635e43f2c6f
line wrap: on
line diff
--- a/src/testdir/test_expr.vim
+++ b/src/testdir/test_expr.vim
@@ -1041,6 +1041,50 @@ func Test_bitwise_shift()
      assert_equal(16, a)
   END
   call v9.CheckDefAndScriptSuccess(lines)
+
+  let lines =<< trim END
+    # Use in a lambda function
+    const DivBy2Ref_A = (n: number): number => n >> 1
+    assert_equal(16, DivBy2Ref_A(32))
+    const DivBy2Ref_B = (n: number): number => (<number>n) >> 1
+    assert_equal(16, DivBy2Ref_B(32))
+    const MultBy2Ref_A = (n: number): number => n << 1
+    assert_equal(8, MultBy2Ref_A(4))
+    const MultBy2Ref_B = (n: number): number => (<number>n) << 1
+    assert_equal(8, MultBy2Ref_B(4))
+
+    def DivBy2_A(): func(number): number
+      return (n: number): number => n >> 1
+    enddef
+    assert_equal(16, DivBy2_A()(32))
+    def DivBy2_B(): func(number): number
+      return (n: number): number => (<number>n) >> 1
+    enddef
+    assert_equal(16, DivBy2_B()(32))
+    def MultBy2_A(): func(number): number
+      return (n: number): number => n << 1
+    enddef
+    assert_equal(64, MultBy2_A()(32))
+    def MultBy2_B(): func(number): number
+      return (n: number): number => (<number>n) << 1
+    enddef
+    assert_equal(64, MultBy2_B()(32))
+  END
+  call v9.CheckDefAndScriptSuccess(lines)
+
+  " Use in a legacy lambda function
+  const DivBy2Ref_A = {n -> n >> 1}
+  call assert_equal(16, DivBy2Ref_A(32))
+  func DivBy2_A()
+    return {n -> n >> 1}
+  endfunc
+  call assert_equal(16, DivBy2_A()(32))
+  const MultBy2Ref_A = {n -> n << 1}
+  call assert_equal(64, MultBy2Ref_A(32))
+  func MultBy2_A()
+    return {n -> n << 1}
+  endfunc
+  call assert_equal(64, MultBy2_A()(32))
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab