//
// SourceTokenizerC::doCommand_ifndef
//
void SourceTokenizerC::doCommand_ifndef(SourceTokenC *)
{
SourceTokenC::Reference name = getRaw(); doAssert(name, SourceTokenC::TT_NAM);
doAssert(peekRaw(), SourceTokenC::TT_ENDL);
addSkip(hasDefine(name->data) || hasMacro(name->data));
}
//
// SourceTokenizerC::doCommand_undef
//
void SourceTokenizerC::doCommand_undef(SourceTokenC *)
{
SourceTokenC::Reference name = getRaw(); doAssert(name, SourceTokenC::TT_NAM);
doAssert(peekRaw(), SourceTokenC::TT_ENDL);
if (isSkip()) return;
remDefine(name->data);
}
//
// SourceTokenizerC::doCommand_endif
//
void SourceTokenizerC::doCommand_endif(SourceTokenC *tok)
{
doAssert(peekRaw(), SourceTokenC::TT_ENDL);
if (skipStack.empty())
Error(tok->pos, "unmatched #endif");
remSkip();
}
//
// SourceTokenizerC::doCommand_else
//
void SourceTokenizerC::doCommand_else(SourceTokenC *tok)
{
doAssert(peekRaw(), SourceTokenC::TT_ENDL);
if (skipStack.empty())
Error(tok->pos, "unmatched #else");
skipStack.back() = unskipStack.back();
unskipStack.back() = true; // If it wasn't, it is now.
}
//
// SourceTokenizerC::doCommand_elif
//
void SourceTokenizerC::doCommand_elif(SourceTokenC *tok)
{
if (skipStack.empty())
Error(tok->pos, "unmatched #elif");
bool ifResult = !!getExpr()->resolveINT();
doAssert(peekRaw(), SourceTokenC::TT_ENDL);
skipStack.back() = unskipStack.back() || !ifResult;
unskipStack.back() = unskipStack.back() || ifResult;
}
//
// SourceTokenizerC::doCommand_include
//
void SourceTokenizerC::doCommand_include(SourceTokenC *)
{
SourceTokenC::Reference inc = getRaw();
std::string filename;
unsigned flags = SourceStream::ST_C;
if(inc->type == SourceTokenC::TT_STR)
filename = inc->data;
else if(inc->type == SourceTokenC::TT_CMP_LT)
{
flags |= SourceStream::STF_NOUSER;
for(char c; (c = inStack.back()->get()) != '>';)
{
if(c == '\n') Error(inc->pos, "unterminated include");
filename += c;
}
}
else
Error(inc->pos, "expected TT_STR or TT_CMP_LT");
doAssert(peekRaw(), SourceTokenC::TT_ENDL);
if (isSkip()) return;
try
{
inStack.push_back(new SourceStream(filename, flags));
ungetStack.push_back(static_cast<SourceTokenC::Reference>(
new SourceTokenC(SourcePosition::builtin(), SourceTokenC::TT_ENDL)));
}
catch (std::exception const &)
{
Error(inc->pos, "file not found: %s", filename.c_str());
}
}
jvalue_ref get() const { return peekRaw(); }
//
// SourceTokenizerC::doCommand_if
//
void SourceTokenizerC::doCommand_if(SourceTokenC *)
{
addSkip(!getExpr()->resolveINT());
doAssert(peekRaw(), SourceTokenC::TT_ENDL);
}
