remove_exceptions.cpp File Reference

Remove exception handling. More...

#include "remove_exceptions.h"
#include "remove_instanceof.h"
#include <stack>
#include <algorithm>
#include <util/c_types.h>
#include <util/std_expr.h>
#include <util/std_code.h>
#include <util/symbol_table.h>
#include <goto-programs/remove_skip.h>
#include <analyses/uncaught_exceptions_analysis.h>

Include dependency graph for remove_exceptions.cpp:

Go to the source code of this file.

Classes
class	remove_exceptionst
	Lowers high-level exception descriptions into low-level operations suitable for symex and other analyses that don't understand the THROW or CATCH GOTO instructions. More...

Functions
void	remove_exceptions (symbol_table_baset &symbol_table, goto_functionst &goto_functions, message_handlert &message_handler, remove_exceptions_typest type)
	removes throws/CATCH-POP/CATCH-PUSH More...
void	remove_exceptions (goto_programt &goto_program, symbol_table_baset &symbol_table, message_handlert &message_handler, remove_exceptions_typest type)
	removes throws/CATCH-POP/CATCH-PUSH from a single GOTO program, replacing them with explicit exception propagation. More...
void	remove_exceptions (goto_modelt &goto_model, message_handlert &message_handler, remove_exceptions_typest type)
	removes throws/CATCH-POP/CATCH-PUSH More...

Detailed Description

Remove exception handling.

Definition in file remove_exceptions.cpp.

Function Documentation

remove_exceptions() [1/3]

void remove_exceptions	(	symbol_table_baset &	symbol_table,
		goto_functionst &	goto_functions,
		message_handlert &	message_handler,
		remove_exceptions_typest	type
	)

removes throws/CATCH-POP/CATCH-PUSH

Definition at line 577 of file remove_exceptions.cpp.

References message_handler, REMOVE_ADDED_INSTANCEOF, and uncaught_exceptions().

Referenced by jbmc_parse_optionst::process_goto_function(), jbmc_parse_optionst::process_goto_functions(), jdiff_parse_optionst::process_goto_program(), janalyzer_parse_optionst::process_goto_program(), and remove_exceptions().

remove_exceptions() [2/3]

void remove_exceptions	(	goto_programt &	goto_program,
		symbol_table_baset &	symbol_table,
		message_handlert &	message_handler,
		remove_exceptions_typest	type
	)

removes throws/CATCH-POP/CATCH-PUSH from a single GOTO program, replacing them with explicit exception propagation.

Note this is somewhat less accurate than the whole-goto-model version, because we can't inspect other functions to determine whether they throw or not, and therefore must assume they do and always introduce post-call exception dispatch.

Parameters

goto_program	program to remove exceptions from
symbol_table	global symbol table. The @inflight_exception global may be added if not already present. It will not be initialised; that is the caller's responsibility.
message_handler	logging output
type	specifies whether instanceof operations generated by this pass should be lowered to class-identifier comparisons (using remove_instanceof).

Definition at line 612 of file remove_exceptions.cpp.

References goto_program, message_handler, REMOVE_ADDED_INSTANCEOF, and remove_exceptions().

remove_exceptions() [3/3]

void remove_exceptions	(	goto_modelt &	goto_model,
		message_handlert &	message_handler,
		remove_exceptions_typest	type
	)

removes throws/CATCH-POP/CATCH-PUSH

Definition at line 630 of file remove_exceptions.cpp.

References goto_modelt::goto_functions, message_handler, remove_exceptions(), and goto_modelt::symbol_table.