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Merge pull request #462 from pmjdebruijn/pragma-message
pragma: add minimalist message pragma implementation
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commit
f0d760de4a
@ -1119,6 +1119,23 @@ parameter with the <tt/#pragma/.
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remembered and output as a whole when translation is finished.
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remembered and output as a whole when translation is finished.
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<sect1><tt>#pragma message (<message>)</tt><label id="pragma-message"><p>
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This pragma is used to display informational messages at compile-time.
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The message intented to be displayed must be a string literal.
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Example:
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<tscreen><verb>
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#pragma message ("in a bottle")
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</verb></tscreen>
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Results in the compiler outputting the following to stderr:
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<tscreen><verb>
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example.c(42): Note: in a bottle
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</verb></tscreen>
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<sect1><tt>#pragma optimize ([push,] on|off)</tt><label id="pragma-optimize"><p>
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<sect1><tt>#pragma optimize ([push,] on|off)</tt><label id="pragma-optimize"><p>
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Switch optimization on or off. If the argument is "off", optimization is
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Switch optimization on or off. If the argument is "off", optimization is
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@ -78,6 +78,7 @@ typedef enum {
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PRAGMA_DATASEG, /* obsolete */
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PRAGMA_DATASEG, /* obsolete */
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PRAGMA_INLINE_STDFUNCS,
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PRAGMA_INLINE_STDFUNCS,
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PRAGMA_LOCAL_STRINGS,
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PRAGMA_LOCAL_STRINGS,
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PRAGMA_MESSAGE,
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PRAGMA_OPTIMIZE,
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PRAGMA_OPTIMIZE,
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PRAGMA_REGISTER_VARS,
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PRAGMA_REGISTER_VARS,
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PRAGMA_REGVARADDR,
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PRAGMA_REGVARADDR,
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@ -114,6 +115,7 @@ static const struct Pragma {
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{ "dataseg", PRAGMA_DATASEG }, /* obsolete */
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{ "dataseg", PRAGMA_DATASEG }, /* obsolete */
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{ "inline-stdfuncs", PRAGMA_INLINE_STDFUNCS },
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{ "inline-stdfuncs", PRAGMA_INLINE_STDFUNCS },
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{ "local-strings", PRAGMA_LOCAL_STRINGS },
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{ "local-strings", PRAGMA_LOCAL_STRINGS },
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{ "message", PRAGMA_MESSAGE },
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{ "optimize", PRAGMA_OPTIMIZE },
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{ "optimize", PRAGMA_OPTIMIZE },
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{ "register-vars", PRAGMA_REGISTER_VARS },
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{ "register-vars", PRAGMA_REGISTER_VARS },
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{ "regvaraddr", PRAGMA_REGVARADDR },
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{ "regvaraddr", PRAGMA_REGVARADDR },
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@ -750,6 +752,13 @@ static void IntPragma (StrBuf* B, IntStack* Stack, long Low, long High)
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static void MakeMessage (const char* Message)
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{
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fprintf (stderr, "%s(%u): Note: %s\n", GetInputName (CurTok.LI), GetInputLine (CurTok.LI), Message);
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}
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static void ParsePragma (void)
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static void ParsePragma (void)
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/* Parse the contents of the _Pragma statement */
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/* Parse the contents of the _Pragma statement */
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{
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{
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@ -849,6 +858,10 @@ static void ParsePragma (void)
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FlagPragma (&B, &LocalStrings);
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FlagPragma (&B, &LocalStrings);
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break;
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break;
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case PRAGMA_MESSAGE:
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StringPragma (&B, MakeMessage);
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break;
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case PRAGMA_OPTIMIZE:
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case PRAGMA_OPTIMIZE:
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FlagPragma (&B, &Optimize);
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FlagPragma (&B, &Optimize);
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break;
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break;
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