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Add return type restriction

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This overrides the previous definition which doesn't have a restriction.
This is a workaround for the inability to infer a stub's return type.
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Michael Miller 2022-03-30 21:10:36 -06:00
parent b3f98cd50c
commit 231323bbf1
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2 changed files with 7 additions and 6 deletions
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src/spectator/mocks/stubbable.cr
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@ -163,7 +163,7 @@ module Spectator
# The value of the stub could be returned as-is.
# This may produce a "bloated" union of all known stub types,
# and generally causes more annoying problems.
raise TypeCastError.new("#{_spectator_stubbed_name} received message #{%call} but cannot resolve the return type.")
raise TypeCastError.new("#{_spectator_stubbed_name} received message #{%call} but cannot resolve the return type. Please add a return type restriction.")
{% end %}
else
# A stub wasn't found, invoke the type-specific fallback logic.
@ -239,13 +239,14 @@ module Spectator
# Finding a suitable stub is delegated to the type including the `Stubbable` module.
if %stub = _spectator_find_stub(%call)
{% if method.return_type %}
# Return type was provided with a restriction.
_spectator_cast_stub_value(%stub, %call, {{method.return_type}}, {{method.return_type.resolve >= Nil}})
{% else %}
# Stubbed method is abstract and there's no return type annotation.
# The value of the stub could be returned as-is.
# This may produce a "bloated" union of all known stub types,
# and generally causes more annoying problems.
raise TypeCastError.new("#{_spectator_stubbed_name} received message #{%call} but cannot resolve the return type.")
raise TypeCastError.new("#{_spectator_stubbed_name} received message #{%call} but cannot resolve the return type. Please add a return type restriction.")
{% end %}
else
# A stub wasn't found, invoke the type-specific fallback logic.