private ImageLocationInfo createImageLocationInfo(Token t) {
if (fLocationMap != null) {
final Object s = t.fSource;
if (s instanceof ObjectStyleMacro) {
return new MacroImageLocationInfo((ObjectStyleMacro) s, t.getOffset(), t.getEndOffset());
} else if (s instanceof ObjCPreprocessor) {
int sequenceNumber = fLocationMap.getSequenceNumberForOffset(t.getOffset());
int sequenceEndNumber = fLocationMap.getSequenceNumberForOffset(t.getEndOffset());
return new ParameterImageLocationInfo(sequenceNumber, sequenceEndNumber);
}
}
return null;
}
int getCurrentLineNumber() {
if (fFixedInput != null) {
return fFixedLineNumber + countNewlines(fFixedInput);
}
if (fLocationMap != null) {
return fLocationMap.getCurrentLineNumber(fEndOffset);
}
return 0;
}
String getCurrentFilename() {
if (fFixedCurrentFilename != null) {
return fFixedCurrentFilename;
}
if (fLocationMap != null) {
return fLocationMap.getCurrentFilePath();
}
return ""; //$NON-NLS-1$
}
private TokenList expandAll(
TokenSource input,
IdentityHashMap<PreprocessorMacro, PreprocessorMacro> forbidden,
boolean protectDefinedConstructs,
MacroExpansionTracker tracker)
throws OffsetLimitReachedException {
final TokenList result = new TokenList();
boolean protect = false;
Token l = null;
Token t = input.removeFirst();
while (t != null) {
switch (t.getType()) {
case ObjCPreprocessor.tSCOPE_MARKER:
((ExpansionBoundary) t).execute(forbidden);
break;
case IToken.tIDENTIFIER:
final char[] image = t.getCharImage();
PreprocessorMacro macro = fDictionary.get(image);
if (protect || (tracker != null && tracker.isDone())) {
result.append(t);
} else if (protectDefinedConstructs && Arrays.equals(image, Keywords.cDEFINED)) {
t.setType(ObjCPreprocessor.tDEFINED);
result.append(t);
protect = true;
}
// tricky: don't mark function-style macros if you don't
// find the left parenthesis
else if (macro == null || (macro.isFunctionStyle() && !input.findLParenthesis())) {
result.append(t);
} else if (forbidden.containsKey(macro)) {
t.setType(ObjCPreprocessor.tEXPANDED_IDENTIFIER); // prevent
// any
// further
// expansion
result.append(t);
} else {
if (fLocationMap != null) {
ImageLocationInfo info = null;
if (fLexOptions.fCreateImageLocations) {
info = createImageLocationInfo(t);
}
fImplicitMacroExpansions.add(
fLocationMap.encounterImplicitMacroExpansion(macro, info));
}
TokenList replacement = new TokenList();
addSpacemarker(l, t, replacement); // start expansion
replacement.append(new ExpansionBoundary(macro, true));
Token last = expandOne(t, macro, forbidden, input, replacement, tracker);
replacement.append(new ExpansionBoundary(macro, false));
addSpacemarker(last, input.first(), replacement); // end
// expansion
input.prepend(replacement);
}
break;
case IToken.tLPAREN:
case ObjCPreprocessor.tNOSPACE:
case ObjCPreprocessor.tSPACE:
result.append(t);
break;
default:
protect = false;
result.append(t);
break;
}
l = t;
t = input.removeFirst();
}
return result;
}
