@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; }