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ae3b2a35e3
compiler/typecheck_clauses.m:
When typechecking coerce expressions, don't call
type_assign_fresh_type_var a second time for the same variable.
tests/invalid/Mmakefile:
tests/invalid/coerce_same_var.err_exp:
tests/invalid/coerce_same_var.m:
Add test case.
19 lines
448 B
Mathematica
19 lines
448 B
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module coerce_same_var.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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%---------------------------------------------------------------------------%
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:- implementation.
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main(!IO) :-
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X = coerce(X),
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io.print_line(X, !IO).
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