| 1 | #ifndef MESSAGES_H
|
|---|
| 2 | #define MESSAGES_H
|
|---|
| 3 |
|
|---|
| 4 | #include "types.h"
|
|---|
| 5 | #include "Symbol.h"
|
|---|
| 6 | #include <string>
|
|---|
| 7 |
|
|---|
| 8 | /* Keeps track of and shows, warning and error messages */
|
|---|
| 9 | class Messages {
|
|---|
| 10 | public:
|
|---|
| 11 | /* ctor */
|
|---|
| 12 | Messages();
|
|---|
| 13 |
|
|---|
| 14 | /* Show warnings messages */
|
|---|
| 15 | void EnableWarnings();
|
|---|
| 16 | /* Do not show warning message */
|
|---|
| 17 | void DisableWarnings();
|
|---|
| 18 |
|
|---|
| 19 | /* Give warning on line number lineno in source file */
|
|---|
| 20 | void Warning(int lineno, const char *msg, ...);
|
|---|
| 21 | /* Give error on line number lineno in source file */
|
|---|
| 22 | void Error(int lineno, const char *msg, ...);
|
|---|
| 23 |
|
|---|
| 24 | /* Give warning for a coercion */
|
|---|
| 25 | void CoercionWarning(int lineno, ReturnType to, ReturnType from);
|
|---|
| 26 |
|
|---|
| 27 | /* Give error for using a function as a procedure */
|
|---|
| 28 | void ReturnValueError(int lineno, const string& id, ReturnType type);
|
|---|
| 29 |
|
|---|
| 30 | /* Give error for a type mismatch */
|
|---|
| 31 | void TypeError(int lineno, ReturnType expected, ReturnType received);
|
|---|
| 32 |
|
|---|
| 33 | /* Give error for undeclared identifier */
|
|---|
| 34 | void UndeclaredIdError(int lineno, const std::string& id);
|
|---|
| 35 |
|
|---|
| 36 | /* Give error for an identifier that is declared multiple times */
|
|---|
| 37 | void DeclaredIdError(int lineno, const std::string& id, int prev_lineno);
|
|---|
| 38 |
|
|---|
| 39 | /* Give error for identifier that is not a lvalue */
|
|---|
| 40 | void LValueError(int lineno, const std::string& id);
|
|---|
| 41 |
|
|---|
| 42 | /* Give error for using an identifier that is not a rvalue */
|
|---|
| 43 | void RValueError(int lineno, const std::string& id, SymbolType symbol_type);
|
|---|
| 44 |
|
|---|
| 45 | /* Give error for using id as function/procedure when it's not */
|
|---|
| 46 | void CallError(int lineno, const std::string& id, SymbolType symbol_type);
|
|---|
| 47 |
|
|---|
| 48 | /* Give error for incorrect number of parameters in function/procedure call */
|
|---|
| 49 | void ParamCountError(int lineno, int paramcount, Symbol *symbol);
|
|---|
| 50 |
|
|---|
| 51 | /* Show how many warnings and errors there were */
|
|---|
| 52 | void ShowNumbers() const;
|
|---|
| 53 |
|
|---|
| 54 | /* Returns the number of errors */
|
|---|
| 55 | int GetErrors() const;
|
|---|
| 56 |
|
|---|
| 57 | /* Returns the number of warnings */
|
|---|
| 58 | int GetWarnings() const;
|
|---|
| 59 | private:
|
|---|
| 60 | std::string SignatureString(Symbol *symbol);
|
|---|
| 61 | bool show_warnings;
|
|---|
| 62 | int warnings;
|
|---|
| 63 | int suppressed;
|
|---|
| 64 | int errors;
|
|---|
| 65 | };
|
|---|
| 66 |
|
|---|
| 67 | #endif /* MESSAGES_H */
|
|---|
