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import unittest
template t(a: int): string = "int"
template t(a: string): string = "string"
block: # templates can be overloaded
check t(10) == "int"
check t("test") == "string"
block: # previous definitions can be further overloaded or hidden in local scopes
template t(a: bool): string = "bool"
check t(true) == "bool"
check t(10) == "int"
template t(a: int): string = "inner int"
check t(10) == "inner int"
check t("test") == "string"
block: # templates can be redefined multiple times
template customAssert(cond: bool, msg: string): typed {.dirty.} =
if not cond: fail(msg)
template assertionFailed(body: untyped) {.dirty.} =
template fail(msg: string): typed {.redefine.} =
body
assertionFailed:
check(msg == "first fail path")
customAssert false, "first fail path"
assertionFailed:
check(msg == "second fail path")
customAssert false, "second fail path"
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