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Fixed extra "Macro argument count mismatch" message when a macro argument list is unterminated.

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acqn 2022-07-26 21:10:31 +08:00
parent 60c1290468
commit 2c9c8ee196
1 changed files with 23 additions and 21 deletions
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44
src/cc65/preproc.c
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@ -446,10 +446,14 @@ static int MacName (char* Ident)
static void ReadMacroArgs (MacroExp* E) static void ReadMacroArgs (MacroExp* E)
/* Identify the arguments to a macro call */ /* Identify the arguments to a macro call as-is */
{ {
int MissingParen = 0;
unsigned Parens; /* Number of open parenthesis */ unsigned Parens; /* Number of open parenthesis */
StrBuf Arg = STATIC_STRBUF_INITIALIZER; StrBuf Arg = AUTO_STRBUF_INITIALIZER;
/* Eat the left paren */
NextChar ();
/* Read the actual macro arguments */ /* Read the actual macro arguments */
Parens = 0; Parens = 0;
@ -512,7 +516,7 @@ static void ReadMacroArgs (MacroExp* E)
} else if (CurC == '\0') { } else if (CurC == '\0') {
/* End of input inside macro argument list */ /* End of input inside macro argument list */
PPError ("Unterminated argument list invoking macro '%s'", E->M->Name); PPError ("Unterminated argument list invoking macro '%s'", E->M->Name);
MissingParen = 1;
ClearLine (); ClearLine ();
break; break;
} else { } else {
@ -522,6 +526,21 @@ static void ReadMacroArgs (MacroExp* E)
} }
} }
/* Compare formal and actual argument count */
if (CollCount (&E->ActualArgs) != (unsigned) E->M->ArgCount) {
if (!MissingParen) {
/* Argument count mismatch */
PPError ("Macro argument count mismatch");
}
/* Be sure to make enough empty arguments available */
SB_Clear (&Arg);
while (CollCount (&E->ActualArgs) < (unsigned) E->M->ArgCount) {
ME_AppendActual (E, &Arg);
}
}
/* Deallocate string buf resources */ /* Deallocate string buf resources */
SB_Done (&Arg); SB_Done (&Arg);
} }
@ -666,29 +685,12 @@ static void MacroCall (StrBuf* Target, Macro* M)
{ {
MacroExp E; MacroExp E;
/* Eat the left paren */
NextChar ();
/* Initialize our MacroExp structure */ /* Initialize our MacroExp structure */
InitMacroExp (&E, M); InitMacroExp (&E, M);
/* Read the actual macro arguments */ /* Read the actual macro arguments (with the enclosing parentheses) */
ReadMacroArgs (&E); ReadMacroArgs (&E);
/* Compare formal and actual argument count */
if (CollCount (&E.ActualArgs) != (unsigned) M->ArgCount) {
StrBuf Arg = STATIC_STRBUF_INITIALIZER;
/* Argument count mismatch */
PPError ("Macro argument count mismatch");
/* Be sure to make enough empty arguments available */
while (CollCount (&E.ActualArgs) < (unsigned) M->ArgCount) {
ME_AppendActual (&E, &Arg);
}
}
/* Replace macro arguments handling the # and ## operators */ /* Replace macro arguments handling the # and ## operators */
MacroArgSubst (&E); MacroArgSubst (&E);