129 lines
2.7 KiB
C
129 lines
2.7 KiB
C
/*
|
|
parserMisc.c -- Miscellaneous parser support routines for the Macross
|
|
assembler.
|
|
|
|
Chip Morningstar -- Lucasfilm Ltd.
|
|
|
|
3-November-1984
|
|
|
|
*/
|
|
|
|
#include "macrossTypes.h"
|
|
#include "macrossGlobals.h"
|
|
#include "y.tab.h"
|
|
|
|
statementType *
|
|
addLabelToStatement(labelList, statement)
|
|
labelListType *labelList;
|
|
statementType *statement;
|
|
{
|
|
statementType *newStatement();
|
|
|
|
if (statement == NULL)
|
|
statement = newStatement(NULL_STATEMENT, NULL);
|
|
statement->labels = labelList;
|
|
return(statement);
|
|
}
|
|
|
|
void
|
|
botch(message, arg1, arg2, arg3)
|
|
char *message;
|
|
anyOldThing *arg1;
|
|
anyOldThing *arg2;
|
|
anyOldThing *arg3;
|
|
{
|
|
printf("Macross horrible terrible internal botch: ");
|
|
printf(message, arg1, arg2, arg3);
|
|
chokePukeAndDie();
|
|
}
|
|
|
|
void
|
|
checkDefineAssignmentOperator(assignmentOperator)
|
|
assignmentKindType assignmentOperator;
|
|
{
|
|
if (assignmentOperator != ASSIGN_ASSIGN)
|
|
puntOnError(DEFINE_ASSIGNMENT_WRONG_ERROR);
|
|
}
|
|
|
|
statementType *
|
|
convertDefineToMdefine(defineStatement)
|
|
statementType *defineStatement;
|
|
{
|
|
if (defineStatement->kindOfStatement != DEFINE_STATEMENT)
|
|
botch("convertDefineToMdefine got statement kind: %d\n",
|
|
defineStatement->kindOfStatement);
|
|
defineStatement->kindOfStatement = MDEFINE_STATEMENT;
|
|
return(defineStatement);
|
|
}
|
|
|
|
ifStatementBodyType *
|
|
extractIfBody(ifStatement)
|
|
statementType *ifStatement;
|
|
{
|
|
ifStatementBodyType *result;
|
|
|
|
result = ifStatement->statementBody.ifUnion;
|
|
if (ifStatement->labels != NULL)
|
|
botch("extract if body with non-null labels\n");
|
|
else if (ifStatement->nextStatement != NULL)
|
|
botch("extract if body with non-null next\n");
|
|
else
|
|
qfree(ifStatement);
|
|
return(result);
|
|
}
|
|
|
|
mifStatementBodyType *
|
|
extractMifBody(mifStatement)
|
|
statementType *mifStatement;
|
|
{
|
|
mifStatementBodyType *result;
|
|
|
|
result = mifStatement->statementBody.mifUnion;
|
|
if (mifStatement->labels != NULL)
|
|
botch("extract mif body with non-null labels\n");
|
|
else if (mifStatement->nextStatement != NULL)
|
|
botch("extract mif body with non-null next\n");
|
|
else
|
|
qfree(mifStatement);
|
|
return(result);
|
|
}
|
|
|
|
stringType *
|
|
extractString(textExpression)
|
|
operandType *textExpression;
|
|
{
|
|
stringType *result;
|
|
|
|
if (textExpression->kindOfOperand != STRING_OPND)
|
|
botch("extract string got handed an opnd kind: %d\n",
|
|
textExpression->kindOfOperand);
|
|
result = textExpression->theOperand.stringUnion;
|
|
qfree(textExpression);
|
|
return(result);
|
|
}
|
|
|
|
void
|
|
popMacroOrFunctionNestingDepth()
|
|
{
|
|
if (--macroOrFunctionNestingDepth == 0)
|
|
unknownSymbolTag = UNKNOWN_SYMBOL;
|
|
}
|
|
|
|
void
|
|
pushMacroOrFunctionNestingDepth()
|
|
{
|
|
macroOrFunctionNestingDepth++;
|
|
unknownSymbolTag = NESTED_UNKNOWN_SYMBOL;
|
|
}
|
|
|
|
char *
|
|
saveString(s)
|
|
char *s;
|
|
{
|
|
char *result;
|
|
|
|
result = (char *)malloc(strlen(s)+1);
|
|
strcpy(result, s);
|
|
return(result);
|
|
}
|