Commit graph

15 commits

Author SHA1 Message Date
Leonardo de Moura
ccb9faf065 refactor(*): error messages
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-13 16:54:21 -08:00
Leonardo de Moura
f7c7dd4ed4 feat(frontends/lean): include filename in error messages, use GNU error message style
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 11:01:27 -08:00
Leonardo de Moura
e2999d3ff6 feat(*): add component name to check_stack and check_system
I also reduced the stack size to 8 Mb in the tests at tests/lean and tests/lean/slow. The idea is to simulate stackoverflow conditions.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-07 15:11:55 -08:00
Leonardo de Moura
74dfdd02de feat(util): add primitives for checking the amount of available stack space
Recursive functions that may go very deep should invoke the function check_stack. It throws an exception if the amount of stack space is limited.

The function check_system() is syntax sugar for
    check_interrupted();
    check_stack();

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-01 17:19:27 -08:00
Leonardo de Moura
d87ad9eb7e refactor(util/lua): propagate C++ Lean exceptions in Lua
The following call sequence is possible:
C++ -> Lua -> C++ -> Lua -> C++

The first block of C++ is the Lean main function.
The main function invokes the Lua interpreter.
The Lua interpreter invokes a C++ Lean API.
Then the Lean API invokes a callback implemented in Lua.
The Lua callback invokes another Lean API.
Now, suppose the Lean API throws an exception.
We want the C++ exception to propagate over the mixed C++/Lua call stack.
We use the clone/rethrow exception idiom to achieve this goal.

Before this commit, the C++ exceptions were converted into strings
using the method what(), and then they were propagated over the Lua
stack using lua_error. A lua_error was then converted into a lua_exception when going back to C++.
This solution was very unsatisfactory, since all C++ exceptions were being converted into a lua_exception, and consequently the structure of the exception was being lost.

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-11-27 12:25:29 -08:00
Leonardo de Moura
44a16cab6a test(exception): add new tests exception and parser_exception
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-25 20:57:53 -07:00
Leonardo de Moura
25e47a8a2f Add check_interrupted 'macro'
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-25 11:03:09 -07:00
Leonardo de Moura
0b112b6637 Add sstream to simplify the generation of exception messages.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-24 11:55:17 -07:00
Leonardo de Moura
b964edfb3e Add interrupt method to type checker.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-19 20:05:56 -07:00
Leonardo de Moura
c41b3dc4d8 Add kernel_exceptions. The idea is to avoid expression formatting in the kernel. It also allows different frontends to display the error messages is a different way.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-16 12:51:12 -07:00
Leonardo de Moura
5395ced0e5 Improve comments
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-15 19:02:28 -07:00
Leonardo de Moura
00c06839a4 Fix scanner. Add scanner tests. Add itera to list::iterator. Add parser_exce.
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-08-13 10:55:41 -07:00
Leonardo de Moura
c581990f67 Clean white-spaces
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-07-19 10:29:33 -07:00
Leonardo de Moura
c6e68289da Fix cygwin problems
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-07-16 17:38:51 -07:00
Leonardo de Moura
4f5cafdebf Add support files
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-07-15 18:43:32 -07:00