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068fc20006
compiler/hlds_module.m:
compiler/prog_item.m:
Record the identity of predicates and functions that have misplaced
attempts at definition in the interface section using the
pred_pf_name_arity type instead of the pf_sym_name_arity type.
They both specify an arity, but only in pred_pf_name_arity is it clear
*which kind* of arity this is.
compiler/convert_parse_tree.m:
Record external declarations and foreign_procs in the interface
as misplaced attempts at predicate or function definition using
pred_pf_name_arity, so that the code obviously has no arity bugs,
whereas the old code merely had no obvious bugs. (It did actually work.)
Record fact_table pragmas in the interface as similar misplaced attempts
as predicate or function definition, *if* the pragma contains
a pred_or_func indication.
Factor out some common code.
compiler/hlds_pred.m:
Add predicates to return a pred_info's arity as pred_form_arity
and as user_arity.
compiler/make_hlds_separate_items.m:
compiler/typecheck_errors.m:
Conform to the changes above.
tests/invalid_nodepend/external_in_interface.{m,err_exp}:
tests/invalid_nodepend/foreign_proc_in_interface.{m,err_exp}:
tests/invalid_nodepend/fact_table_in_interface.{m,err_exp}:
Three new test cases to test the
tests/invalid_nodepend/Mmakefile:
Enable the new tests.
tests/invalid/external2.m:
Fix typo in comment.
31 lines
593 B
Mathematica
31 lines
593 B
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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%
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% This module tests the error message for a predicate that has one or more
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% clauses despite being marked as external.
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%
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:- module external2.
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:- interface.
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:- pred p(int::in, int::out) is semidet.
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:- func f(int) = int.
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:- implementation.
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:- pragma external_pred(p/2).
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:- pragma external_func(f/1).
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p(0, 42).
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p(1, 43).
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f(A) = X :-
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( if p(A, B) then
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X = B
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else
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X = 0
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).
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