@Nullable("null means we were unable to calculate")
LogicalPosition hostToInjectedInVirtualSpace(@NotNull LogicalPosition hPos) {
// beware the virtual space
int hLineStartOffset =
hPos.line >= myDelegate.getLineCount()
? myDelegate.getTextLength()
: myDelegate.getLineStartOffset(hPos.line);
int iLineStartOffset = hostToInjected(hLineStartOffset);
int iLine = getLineNumber(iLineStartOffset);
synchronized (myLock) {
for (int i = myShreds.size() - 1; i >= 0; i--) {
PsiLanguageInjectionHost.Shred shred = myShreds.get(i);
if (!shred.isValid()) continue;
Segment hostRangeMarker = shred.getHostRangeMarker();
if (hostRangeMarker == null) continue;
int hShredEndOffset = hostRangeMarker.getEndOffset();
int hShredStartOffset = hostRangeMarker.getStartOffset();
int hShredStartLine = myDelegate.getLineNumber(hShredStartOffset);
int hShredEndLine = myDelegate.getLineNumber(hShredEndOffset);
if (hShredStartLine <= hPos.line && hPos.line <= hShredEndLine) {
int hColumnOfShredEnd = hShredEndOffset - hLineStartOffset;
int iColumnOfShredEnd = hostToInjected(hShredEndOffset) - iLineStartOffset;
int iColumn = iColumnOfShredEnd + hPos.column - hColumnOfShredEnd;
return new LogicalPosition(iLine, iColumn);
}
}
}
return null;
}
@Override
public boolean isValid() {
PsiLanguageInjectionHost.Shred[] shreds;
synchronized (myLock) {
shreds = myShreds.toArray(new PsiLanguageInjectionHost.Shred[myShreds.size()]);
}
// can grab PsiLock in SmartPsiPointer.restore()
for (PsiLanguageInjectionHost.Shred shred : shreds) {
if (!shred.isValid()) return false;
}
return true;
}
