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-rw-r--r--tests/run/tborrow.nim21
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/run/tborrow.nim b/tests/run/tborrow.nim
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+++ b/tests/run/tborrow.nim
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+discard """
+  output: "4887 true"
+"""
+
+# test the new borrow feature that works with generics:
+
+proc `++`*[T: int | float](a, b: T): T =
+  result = a + b
+  
+type
+  DI = distinct int
+  DF = distinct float
+  DS = distinct string
+  
+proc `++`(x, y: DI): DI {.borrow.}
+proc `++`(x, y: DF): DF {.borrow.}
+
+proc `$`(x: DI): string {.borrow.}
+proc `$`(x: DF): string {.borrow.}
+
+echo  4544.DI ++ 343.di, " ", (4.5.df ++ 0.5.df).float == 5.0