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