@Override
public int yylex() throws IOException {
for (; ; ) {
PPDefs.Token<Symbol> ppt;
do ppt = m_prepr.nextToken();
while (ppt.code() == Code.NEWLINE || ppt.code() == Code.WHITESPACE);
m_startPos = new Position(ppt.fileName, ppt.line1, ppt.col1);
m_endPos =
new Position(ppt.fileName2 != null ? ppt.fileName2 : ppt.fileName, ppt.line2, ppt.col2);
Code code = ppt.code();
// m_yylval = null;
m_yylval = code;
switch (code) {
case IDENT:
{
Symbol sym = ppt.symbol();
Code kw = sym.keyword;
if (kw != null) {
code = kw;
m_yylval = code;
} else {
if (sym.topDecl != null && sym.topDecl.sclass == Types.SClass.TYPEDEF) {
code = Code.TYPENAME;
m_yylval = sym.topDecl;
} else m_yylval = sym;
}
}
break;
case EOF:
return CParser.Lexer.EOF;
case CHAR_CONST:
code = Code.INT_NUMBER;
m_yylval = ppt.getCharConstValue();
break;
case INT_NUMBER:
m_yylval = ppt.getIntConstValue();
break;
case REAL_NUMBER:
m_yylval = ppt.getRealConst();
break;
case STRING_CONST:
m_yylval = ppt.getStringConstValue();
break;
case WIDE_CHAR_CONST:
case WIDE_STRING_CONST:
m_reporter.error(ppt, "Wide characters not supported");
continue;
default:
int ord = ppt.code().ordinal();
if (ord >= Code.HASH.ordinal()) {
m_reporter.error(ppt, "Unrecognized symbol '%s'", ppt.outputString());
continue;
}
break;
}
return code.ordinal() + 257;
}
}
@Override
public void yyerror(final CParser.Location loc, final String msg) {
m_reporter.error(fromLocation(loc), msg);
}