projects / deliverable / titan.core.git / blame
| Commit | Line | Data |
|---|---|---|
| d44e3c4f | 1 | /****************************************************************************** |
| 2 | * Copyright (c) 2000-2016 Ericsson Telecom AB | |
| 3 | * All rights reserved. This program and the accompanying materials | |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 | * which accompanies this distribution, and is available at | |
| 6 | * http://www.eclipse.org/legal/epl-v10.html | |
| 7 | * | |
| 8 | * Contributors: | |
| 9 | * Baji, Laszlo | |
| 10 | * Balasko, Jeno | |
| 11 | * Raduly, Csaba | |
| 12 | * | |
| 13 | ******************************************************************************/ | |
| 970ed795 EL |
14 | #ifndef _Common_Error_HH |
| 15 | #define _Common_Error_HH | |
| 16 | ||
| 17 | #include <stdio.h> | |
| 18 | #include <string.h> | |
| 19 | #include <stdarg.h> | |
| 20 | ||
| 21 | #include "error.h" | |
| 22 | ||
| 23 | namespace Common { | |
| 24 | ||
| 25 | class Location; | |
| 26 | ||
| 27 | /** | |
| 28 | * Class Error_Context. :) | |
| 29 | */ | |
| 30 | class Error_Context { | |
| 31 | private: | |
| 32 | /** Counts errors, warnings. */ | |
| 33 | static unsigned int error_count, warning_count; | |
| 34 | /** Indicates whether the actual chain was printed. */ | |
| 35 | static bool chain_printed; | |
| 36 | /** The head and tail of the actual chain. */ | |
| 37 | static Error_Context *head, *tail; | |
| 38 | ||
| 39 | /** List-linking pointers. This contains the saved chain in a | |
| 40 | * restorer element. */ | |
| 41 | Error_Context *prev, *next; | |
| 42 | /** Pointer to the location info structure. */ | |
| 43 | const Location *location; | |
| 44 | /** The message of the element. */ | |
| 45 | char *str; | |
| 46 | /** Indicates whether this element was already printed. */ | |
| 47 | bool is_printed; | |
| 48 | /** Indicates whether this element contains an outer chain. */ | |
| 49 | bool is_restorer; | |
| 50 | /** Indicates whether the outer chain was printed. */ | |
| 51 | bool outer_printed; | |
| 52 | /** Maximum number of errors to report */ | |
| 53 | static unsigned int max_errors; | |
| 54 | ||
| 55 | /** Copy constructor not implemented. */ | |
| 56 | Error_Context(const Error_Context& p); | |
| 57 | /** Assignment not implemented */ | |
| 58 | Error_Context& operator=(const Error_Context& p); | |
| 59 | private: | |
| 60 | /** Prints the actual chain of error contexts to fp. */ | |
| 61 | static void print_context(FILE *fp); | |
| 62 | public: | |
| 63 | /** Starts a new chain and preserves/restores the existing chain, | |
| 64 | * but keeps the n_keep elements of the old chain. */ | |
| 65 | Error_Context(size_t n_keep = 0); | |
| 66 | /** Adds a new element to the chain. The message shall be set | |
| 67 | * later with a call to set_message (e.g. in a conditional | |
| 68 | * construct). */ | |
| 69 | Error_Context(const Location *p_location); | |
| 70 | /** Adds a new element to the chain with the given message. */ | |
| 71 | Error_Context(const Location *p_location, const char *p_fmt, ...) | |
| 72 | __attribute__ ((__format__ (__printf__, 3, 4))); | |
| 73 | /** Destructor. Removes element from the chain. */ | |
| 74 | ~Error_Context(); | |
| 75 | ||
| 76 | /** Assigns the given message to the element */ | |
| 77 | void set_message(const char *p_fmt, ...) | |
| 78 | __attribute__ ((__format__ (__printf__, 2, 3))); | |
| 79 | ||
| 80 | /** Generic error reporting function. */ | |
| 81 | static void report_error(const Location *loc, const char *fmt, | |
| 82 | va_list args); | |
| 83 | ||
| 84 | /** Generic warning reporting function. */ | |
| 85 | static void report_warning(const Location *loc, const char *fmt, | |
| 86 | va_list args); | |
| 87 | ||
| 88 | static void report_note(const Location *loc, const char *fmt, | |
| 89 | va_list args); | |
| 90 | ||
| 91 | /** Returns the number of errors encountered. */ | |
| 92 | static unsigned int get_error_count() { return error_count; } | |
| 93 | /** Returns the number of warnings encountered. */ | |
| 94 | static unsigned int get_warning_count() { return warning_count; } | |
| 95 | /** Increments the error counter. */ | |
| 96 | static void increment_error_count(); | |
| 97 | /** Increments the warning counter. */ | |
| 98 | static void increment_warning_count(); | |
| 99 | ||
| 100 | /** Prints statistics about the number of errors and warnings */ | |
| 101 | static void print_error_statistics(); | |
| 102 | ||
| 103 | /** Set the maximum number of errors */ | |
| 104 | static void set_max_errors(unsigned int maxe) { | |
| 105 | max_errors = maxe; | |
| 106 | } | |
| 107 | }; | |
| 108 | ||
| 109 | } // namespace Common | |
| 110 | ||
| 111 | #endif // _Common_Error_HH |