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063cd9058e
Estimated hours taken: 8 Move exception handling into the standard library, and change error/1 so that it throws an exception. This has two advantages: one is that user code can now catch exceptions caused by calls to error/1, the other is that the debugger handles calls to error/1 more gracefully (by virtue of its existing support for exception handling). extras/exceptions/exception.m: library/exception.m: Move exception.m from `extras' into the standard library. Change the code for handling uncaught exceptions so that it prints out the same diagnostics that error/1 used to print out (i.e. a stack trace and the last debugger event number). extras/exceptions/Mmakefile: extras/exceptions/test_exceptions.exp: extras/exceptions/test_exceptions.m: extras/exceptions/test_exceptions_func.exp: extras/exceptions/test_exceptions_func.m: extras/exceptions/test_uncaught_exception.exp: extras/exceptions/test_uncaught_exception.m tests/hard_coded/exceptions/Mmakefile: tests/hard_coded/exceptions/test_exceptions.exp: tests/hard_coded/exceptions/test_exceptions.m: tests/hard_coded/exceptions/test_exceptions_func.exp: tests/hard_coded/exceptions/test_exceptions_func.m: tests/hard_coded/exceptions/test_uncaught_exception.exp: tests/hard_coded/exceptions/test_uncaught_exception.exp2: tests/hard_coded/exceptions/test_uncaught_exception.m Move the exception test cases from extras/exceptions to a new directory tests/hard_coded/exceptions. Also, change the expected output for the `test_uncaught_exception' test case, since it now prints out more information. tests/hard_coded/Mmakefile: Add `exceptions' to the list of subdirectories. extras/exceptions/README: Delete this file, since the files that it refers to have now all been moved elsewhere. library/require.m: Change error/1 so that it throws an exception. library/library.m: Add exceptions.m to the list of modules in the standard library.
27 lines
793 B
Mathematica
27 lines
793 B
Mathematica
%---------------------------------------------------------------------------%
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% Copyright (C) 1997-1998 The University of Melbourne.
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% This file may only be copied under the terms of the GNU Library General
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% Public License - see the file COPYING.LIB in the Mercury distribution.
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%---------------------------------------------------------------------------%
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% File: test_uncaught_exception.m.
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% Main author: fjh.
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% A test case for exception handling.
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%-----------------------------------------------------------------------------%
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:- module test_uncaught_exception.
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:- interface.
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:- import_module io.
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:- pred main(io__state::di, io__state::uo) is cc_multi.
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:- implementation.
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:- import_module std_util.
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:- import_module exception.
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main -->
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{ throw("<exception thrown from main>") }.
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