Minor optimisations. New method OwnedArray::insertArray(). Changed some CodeDocument inner class constructors to use references rather than pointers.

.gitignore

@@ -15,6 +15,7 @@
 *.manifest.res
 *.o
 *.d
+*.sdf
 xcuserdata
 contents.xcworkspacedata
 .DS_Store

extras/Introjucer/Source/Code Editor/jucer_SourceCodeEditor.cpp

@@ -142,7 +142,7 @@ void SourceCodeEditor::highlightLine (int lineNum, int characterIndex)
                                              editor->getDocument().getNumLines() - editor->getNumLinesOnScreen())));
     }
 
-    editor->moveCaretTo (CodeDocument::Position (&editor->getDocument(), lineNum - 1, characterIndex), false);
+    editor->moveCaretTo (CodeDocument::Position (editor->getDocument(), lineNum - 1, characterIndex), false);
 }
 
 void SourceCodeEditor::resized()

modules/juce_audio_basics/sources/juce_ResamplingAudioSource.cpp

@@ -135,10 +135,10 @@ void ResamplingAudioSource::getNextAudioBlock (const AudioSourceChannelInfo& inf
     for (int m = info.numSamples; --m >= 0;)
     {
         const float alpha = (float) subSampleOffset;
-        const float invAlpha = 1.0f - alpha;
 
         for (int channel = 0; channel < channelsToProcess; ++channel)
-            *destBuffers[channel]++ = srcBuffers[channel][bufferPos] * invAlpha + srcBuffers[channel][nextPos] * alpha;
+            *destBuffers[channel]++ = srcBuffers[channel][bufferPos]
+                                        + alpha * (srcBuffers[channel][nextPos] - srcBuffers[channel][bufferPos]);
 
         subSampleOffset += localRatio;
 

modules/juce_core/containers/juce_Array.h

@@ -460,17 +460,17 @@ public:
         {
             const ScopedLockType lock (getLock());
             data.ensureAllocatedSize (numUsed + numberOfElements);
-            ElementType* insertPos;
+            ElementType* insertPos = data.elements;
 
             if (isPositiveAndBelow (indexToInsertAt, numUsed))
             {
-                insertPos = data.elements + indexToInsertAt;
+                insertPos += indexToInsertAt;
                 const int numberToMove = numUsed - indexToInsertAt;
                 memmove (insertPos + numberOfElements, insertPos, numberToMove * sizeof (ElementType));
             }
             else
             {
-                insertPos = data.elements + numUsed;
+                insertPos += numUsed;
             }
 
             numUsed += numberOfElements;

modules/juce_core/containers/juce_OwnedArray.h

@@ -292,6 +292,46 @@ public:
         }
     }
 
+    /** Inserts an array of values into this array at a given position.
+
+        If the index is less than 0 or greater than the size of the array, the
+        new elements will be added to the end of the array.
+        Otherwise, they will be inserted into the array, moving all the later elements
+        along to make room.
+
+        @param indexToInsertAt      the index at which the first new element should be inserted
+        @param newObjects           the new values to add to the array
+        @param numberOfElements     how many items are in the array
+        @see insert, add, addSorted, set
+    */
+    void insertArray (int indexToInsertAt,
+                      ObjectClass* const* newObjects,
+                      int numberOfElements)
+    {
+        if (numberOfElements > 0)
+        {
+            const ScopedLockType lock (getLock());
+            data.ensureAllocatedSize (numUsed + numberOfElements);
+            ObjectClass** insertPos = data.elements;
+
+            if (isPositiveAndBelow (indexToInsertAt, numUsed))
+            {
+                insertPos += indexToInsertAt;
+                const int numberToMove = numUsed - indexToInsertAt;
+                memmove (insertPos + numberOfElements, insertPos, numberToMove * sizeof (ObjectClass*));
+            }
+            else
+            {
+                insertPos += numUsed;
+            }
+
+            numUsed += numberOfElements;
+
+            while (--numberOfElements >= 0)
+                *insertPos++ = *newObjects++;
+        }
+    }
+
     /** Appends a new object at the end of the array as long as the array doesn't
         already contain it.
 

modules/juce_gui_extra/code_editor/juce_CodeDocument.cpp

@@ -123,15 +123,15 @@ public:
 };
 
 //==============================================================================
-CodeDocument::Iterator::Iterator (CodeDocument* const document_)
-    : document (document_),
+CodeDocument::Iterator::Iterator (const CodeDocument& document_) noexcept
+    : document (&document_),
       charPointer (nullptr),
       line (0),
       position (0)
 {
 }
 
-CodeDocument::Iterator::Iterator (const CodeDocument::Iterator& other)
+CodeDocument::Iterator::Iterator (const CodeDocument::Iterator& other) noexcept
     : document (other.document),
       charPointer (other.charPointer),
       line (other.line),
@@ -153,13 +153,13 @@ CodeDocument::Iterator::~Iterator() noexcept
 {
 }
 
-juce_wchar CodeDocument::Iterator::nextChar()
+juce_wchar CodeDocument::Iterator::nextChar() noexcept
 {
     for (;;)
     {
         if (charPointer.getAddress() == nullptr)
         {
-            CodeDocumentLine* const l = document->lines[line];
+            const CodeDocumentLine* const l = document->lines[line];
 
             if (l == nullptr)
                 return 0;
@@ -182,16 +182,16 @@ juce_wchar CodeDocument::Iterator::nextChar()
     }
 }
 
-void CodeDocument::Iterator::skip()
+void CodeDocument::Iterator::skip() noexcept
 {
     nextChar();
 }
 
-void CodeDocument::Iterator::skipToEndOfLine()
+void CodeDocument::Iterator::skipToEndOfLine() noexcept
 {
     if (charPointer.getAddress() == nullptr)
     {
-        CodeDocumentLine* const l = document->lines[line];
+        const CodeDocumentLine* const l = document->lines[line];
 
         if (l == nullptr)
             return;
@@ -204,11 +204,11 @@ void CodeDocument::Iterator::skipToEndOfLine()
     charPointer = nullptr;
 }
 
-juce_wchar CodeDocument::Iterator::peekNextChar() const
+juce_wchar CodeDocument::Iterator::peekNextChar() const noexcept
 {
     if (charPointer.getAddress() == nullptr)
     {
-        CodeDocumentLine* const l = document->lines[line];
+        const CodeDocumentLine* const l = document->lines[line];
 
         if (l == nullptr)
             return 0;
@@ -221,11 +221,11 @@ juce_wchar CodeDocument::Iterator::peekNextChar() const
     if (c != 0)
         return c;
 
-    CodeDocumentLine* const l = document->lines [line + 1];
+    const CodeDocumentLine* const l = document->lines [line + 1];
     return l == nullptr ? 0 : l->line[0];
 }
 
-void CodeDocument::Iterator::skipWhitespace()
+void CodeDocument::Iterator::skipWhitespace() noexcept
 {
     while (CharacterFunctions::isWhitespace (peekNextChar()))
         skip();
@@ -238,23 +238,22 @@ bool CodeDocument::Iterator::isEOF() const noexcept
 
 //==============================================================================
 CodeDocument::Position::Position() noexcept
-    : owner (0), characterPos (0), line (0),
+    : owner (nullptr), characterPos (0), line (0),
       indexInLine (0), positionMaintained (false)
 {
 }
 
-CodeDocument::Position::Position (const CodeDocument* const ownerDocument,
+CodeDocument::Position::Position (const CodeDocument& ownerDocument,
                                   const int line_, const int indexInLine_) noexcept
-    : owner (const_cast <CodeDocument*> (ownerDocument)),
+    : owner (const_cast <CodeDocument*> (&ownerDocument)),
       characterPos (0), line (line_),
       indexInLine (indexInLine_), positionMaintained (false)
 {
     setLineAndIndex (line_, indexInLine_);
 }
 
-CodeDocument::Position::Position (const CodeDocument* const ownerDocument,
-                                  const int characterPos_) noexcept
-    : owner (const_cast <CodeDocument*> (ownerDocument)),
+CodeDocument::Position::Position (const CodeDocument& ownerDocument, const int characterPos_) noexcept
+    : owner (const_cast <CodeDocument*> (&ownerDocument)),
       positionMaintained (false)
 {
     setPosition (characterPos_);
@@ -324,25 +323,22 @@ void CodeDocument::Position::setLineAndIndex (const int newLineNum, const int ne
         {
             line = owner->lines.size() - 1;
 
-            CodeDocumentLine* const l = owner->lines.getUnchecked (line);
-            jassert (l != nullptr);
-
-            indexInLine = l->lineLengthWithoutNewLines;
-            characterPos = l->lineStartInFile + indexInLine;
+            const CodeDocumentLine& l = *owner->lines.getUnchecked (line);
+            indexInLine = l.lineLengthWithoutNewLines;
+            characterPos = l.lineStartInFile + indexInLine;
         }
         else
         {
             line = jmax (0, newLineNum);
 
-            CodeDocumentLine* const l = owner->lines.getUnchecked (line);
-            jassert (l != nullptr);
+            const CodeDocumentLine& l = *owner->lines.getUnchecked (line);
 
-            if (l->lineLengthWithoutNewLines > 0)
-                indexInLine = jlimit (0, l->lineLengthWithoutNewLines, newIndexInLine);
+            if (l.lineLengthWithoutNewLines > 0)
+                indexInLine = jlimit (0, l.lineLengthWithoutNewLines, newIndexInLine);
             else
                 indexInLine = 0;
 
-            characterPos = l->lineStartInFile + indexInLine;
+            characterPos = l.lineStartInFile + indexInLine;
         }
     }
 }
@@ -366,15 +362,14 @@ void CodeDocument::Position::setPosition (const int newPosition)
             {
                 for (int i = lineStart; i < lineEnd; ++i)
                 {
-                    CodeDocumentLine* const l = owner->lines.getUnchecked (i);
-
-                    int index = newPosition - l->lineStartInFile;
+                    const CodeDocumentLine& l = *owner->lines.getUnchecked (i);
+                    const int index = newPosition - l.lineStartInFile;
 
-                    if (index >= 0 && (index < l->lineLength || i == lineEnd - 1))
+                    if (index >= 0 && (index < l.lineLength || i == lineEnd - 1))
                     {
                         line = i;
-                        indexInLine = jmin (l->lineLengthWithoutNewLines, index);
-                        characterPos = l->lineStartInFile + indexInLine;
+                        indexInLine = jmin (l.lineLengthWithoutNewLines, index);
+                        characterPos = l.lineStartInFile + indexInLine;
                     }
                 }
 
@@ -383,9 +378,8 @@ void CodeDocument::Position::setPosition (const int newPosition)
             else
             {
                 const int midIndex = (lineStart + lineEnd + 1) / 2;
-                CodeDocumentLine* const mid = owner->lines.getUnchecked (midIndex);
 
-                if (newPosition >= mid->lineStartInFile)
+                if (newPosition >= owner->lines.getUnchecked (midIndex)->lineStartInFile)
                     lineStart = midIndex;
                 else
                     lineEnd = midIndex;
@@ -405,9 +399,10 @@ void CodeDocument::Position::moveBy (int characterDelta)
         // If moving right, make sure we don't get stuck between the \r and \n characters..
         if (line < owner->lines.size())
         {
-            CodeDocumentLine* const l = owner->lines.getUnchecked (line);
-            if (indexInLine + characterDelta < l->lineLength
-                 && indexInLine + characterDelta >= l->lineLengthWithoutNewLines + 1)
+            const CodeDocumentLine& l = *owner->lines.getUnchecked (line);
+
+            if (indexInLine + characterDelta < l.lineLength
+                 && indexInLine + characterDelta >= l.lineLengthWithoutNewLines + 1)
                 ++characterDelta;
         }
     }
@@ -415,21 +410,21 @@ void CodeDocument::Position::moveBy (int characterDelta)
     setPosition (characterPos + characterDelta);
 }
 
-const CodeDocument::Position CodeDocument::Position::movedBy (const int characterDelta) const
+CodeDocument::Position CodeDocument::Position::movedBy (const int characterDelta) const
 {
     CodeDocument::Position p (*this);
     p.moveBy (characterDelta);
     return p;
 }
 
-const CodeDocument::Position CodeDocument::Position::movedByLines (const int deltaLines) const
+CodeDocument::Position CodeDocument::Position::movedByLines (const int deltaLines) const
 {
     CodeDocument::Position p (*this);
     p.setLineAndIndex (getLineNumber() + deltaLines, getIndexInLine());
     return p;
 }
 
-const juce_wchar CodeDocument::Position::getCharacter() const
+juce_wchar CodeDocument::Position::getCharacter() const
 {
     const CodeDocumentLine* const l = owner->lines [line];
     return l == nullptr ? 0 : l->line [getIndexInLine()];
@@ -480,8 +475,8 @@ CodeDocument::~CodeDocument()
 
 String CodeDocument::getAllContent() const
 {
-    return getTextBetween (Position (this, 0),
-                           Position (this, lines.size(), 0));
+    return getTextBetween (Position (*this, 0),
+                           Position (*this, lines.size(), 0));
 }
 
 String CodeDocument::getTextBetween (const Position& start, const Position& end) const
@@ -505,22 +500,22 @@ String CodeDocument::getTextBetween (const Position& start, const Position& end)
 
     for (int i = jmax (0, startLine); i <= maxLine; ++i)
     {
-        const CodeDocumentLine* line = lines.getUnchecked(i);
-        int len = line->lineLength;
+        const CodeDocumentLine& line = *lines.getUnchecked(i);
+        int len = line.lineLength;
 
         if (i == startLine)
         {
             const int index = start.getIndexInLine();
-            mo << line->line.substring (index, len);
+            mo << line.line.substring (index, len);
         }
         else if (i == endLine)
         {
             len = end.getIndexInLine();
-            mo << line->line.substring (0, len);
+            mo << line.line.substring (0, len);
         }
         else
         {
-            mo << line->line;
+            mo << line.line;
         }
     }
 
@@ -736,20 +731,13 @@ void CodeDocument::checkLastLineStatus()
 }
 
 //==============================================================================
-void CodeDocument::addListener (CodeDocument::Listener* const listener) noexcept
-{
-    listeners.add (listener);
-}
-
-void CodeDocument::removeListener (CodeDocument::Listener* const listener) noexcept
-{
-    listeners.remove (listener);
-}
+void CodeDocument::addListener    (CodeDocument::Listener* const l) noexcept   { listeners.add (l); }
+void CodeDocument::removeListener (CodeDocument::Listener* const l) noexcept   { listeners.remove (l); }
 
 void CodeDocument::sendListenerChangeMessage (const int startLine, const int endLine)
 {
-    Position startPos (this, startLine, 0);
-    Position endPos (this, endLine, 0);
+    Position startPos (*this, startLine, 0);
+    Position endPos (*this, endLine, 0);
 
     listeners.call (&CodeDocument::Listener::codeDocumentChanged, startPos, endPos);
 }
@@ -758,10 +746,8 @@ void CodeDocument::sendListenerChangeMessage (const int startLine, const int end
 class CodeDocumentInsertAction   : public UndoableAction
 {
 public:
-    CodeDocumentInsertAction (CodeDocument& owner_, const String& text_, const int insertPos_) noexcept
-        : owner (owner_),
-          text (text_),
-          insertPos (insertPos_)
+    CodeDocumentInsertAction (CodeDocument& doc, const String& t, const int pos) noexcept
+        : owner (doc), text (t), insertPos (pos)
     {
     }
 
@@ -784,77 +770,72 @@ public:
 private:
     CodeDocument& owner;
     const String text;
-    int insertPos;
+    const int insertPos;
 
     JUCE_DECLARE_NON_COPYABLE (CodeDocumentInsertAction);
 };
 
 void CodeDocument::insert (const String& text, const int insertPos, const bool undoable)
 {
-    if (text.isEmpty())
-        return;
-
-    if (undoable)
+    if (text.isNotEmpty())
     {
-        undoManager.perform (new CodeDocumentInsertAction (*this, text, insertPos));
-    }
-    else
-    {
-        Position pos (this, insertPos);
-        const int firstAffectedLine = pos.getLineNumber();
-        int lastAffectedLine = firstAffectedLine + 1;
-
-        CodeDocumentLine* const firstLine = lines [firstAffectedLine];
-        String textInsideOriginalLine (text);
-
-        if (firstLine != nullptr)
+        if (undoable)
         {
-            const int index = pos.getIndexInLine();
-            textInsideOriginalLine = firstLine->line.substring (0, index)
-                                     + textInsideOriginalLine
-                                     + firstLine->line.substring (index);
+            undoManager.perform (new CodeDocumentInsertAction (*this, text, insertPos));
         }
+        else
+        {
+            Position pos (*this, insertPos);
+            const int firstAffectedLine = pos.getLineNumber();
+            int lastAffectedLine = firstAffectedLine + 1;
 
-        maximumLineLength = -1;
-        Array <CodeDocumentLine*> newLines;
-        CodeDocumentLine::createLines (newLines, textInsideOriginalLine);
-        jassert (newLines.size() > 0);
+            CodeDocumentLine* const firstLine = lines [firstAffectedLine];
+            String textInsideOriginalLine (text);
 
-        CodeDocumentLine* const newFirstLine = newLines.getUnchecked (0);
-        newFirstLine->lineStartInFile = firstLine != nullptr ? firstLine->lineStartInFile : 0;
-        lines.set (firstAffectedLine, newFirstLine);
+            if (firstLine != nullptr)
+            {
+                const int index = pos.getIndexInLine();
+                textInsideOriginalLine = firstLine->line.substring (0, index)
+                                         + textInsideOriginalLine
+                                         + firstLine->line.substring (index);
+            }
 
-        if (newLines.size() > 1)
-        {
-            for (int i = 1; i < newLines.size(); ++i)
+            maximumLineLength = -1;
+            Array <CodeDocumentLine*> newLines;
+            CodeDocumentLine::createLines (newLines, textInsideOriginalLine);
+            jassert (newLines.size() > 0);
+
+            CodeDocumentLine* const newFirstLine = newLines.getUnchecked (0);
+            newFirstLine->lineStartInFile = firstLine != nullptr ? firstLine->lineStartInFile : 0;
+            lines.set (firstAffectedLine, newFirstLine);
+
+            if (newLines.size() > 1)
             {
-                CodeDocumentLine* const l = newLines.getUnchecked (i);
-                lines.insert (firstAffectedLine + i, l);
+                lines.insertArray (firstAffectedLine + 1, newLines.getRawDataPointer() + 1, newLines.size() - 1);
+                lastAffectedLine = lines.size();
             }
 
-            lastAffectedLine = lines.size();
-        }
+            int lineStart = newFirstLine->lineStartInFile;
+            for (int i = firstAffectedLine; i < lines.size(); ++i)
+            {
+                CodeDocumentLine& l = *lines.getUnchecked (i);
+                l.lineStartInFile = lineStart;
+                lineStart += l.lineLength;
+            }
 
-        int i, lineStart = newFirstLine->lineStartInFile;
-        for (i = firstAffectedLine; i < lines.size(); ++i)
-        {
-            CodeDocumentLine* const l = lines.getUnchecked (i);
-            l->lineStartInFile = lineStart;
-            lineStart += l->lineLength;
-        }
+            checkLastLineStatus();
 
-        checkLastLineStatus();
+            const int newTextLength = text.length();
+            for (int i = 0; i < positionsToMaintain.size(); ++i)
+            {
+                CodeDocument::Position& p = *positionsToMaintain.getUnchecked(i);
 
-        const int newTextLength = text.length();
-        for (i = 0; i < positionsToMaintain.size(); ++i)
-        {
-            CodeDocument::Position* const p = positionsToMaintain.getUnchecked(i);
+                if (p.getPosition() >= insertPos)
+                    p.setPosition (p.getPosition() + newTextLength);
+            }
 
-            if (p->getPosition() >= insertPos)
-                p->setPosition (p->getPosition() + newTextLength);
+            sendListenerChangeMessage (firstAffectedLine, lastAffectedLine);
         }
-
-        sendListenerChangeMessage (firstAffectedLine, lastAffectedLine);
     }
 }
 
@@ -862,13 +843,11 @@ void CodeDocument::insert (const String& text, const int insertPos, const bool u
 class CodeDocumentDeleteAction  : public UndoableAction
 {
 public:
-    CodeDocumentDeleteAction (CodeDocument& owner_, const int startPos_, const int endPos_) noexcept
-        : owner (owner_),
-          startPos (startPos_),
-          endPos (endPos_)
+    CodeDocumentDeleteAction (CodeDocument& doc, const int start, const int end) noexcept
+        : owner (doc), startPos (start), endPos (end),
+          removedText (doc.getTextBetween (CodeDocument::Position (doc, start),
+                                           CodeDocument::Position (doc, end)))
     {
-        removedText = owner.getTextBetween (CodeDocument::Position (&owner, startPos),
-                                            CodeDocument::Position (&owner, endPos));
     }
 
     bool perform()
@@ -885,12 +864,12 @@ public:
         return true;
     }
 
-    int getSizeInUnits()    { return removedText.length() + 32; }
+    int getSizeInUnits()    { return (endPos - startPos) + 32; }
 
 private:
     CodeDocument& owner;
-    int startPos, endPos;
-    String removedText;
+    const int startPos, endPos;
+    const String removedText;
 
     JUCE_DECLARE_NON_COPYABLE (CodeDocumentDeleteAction);
 };
@@ -906,57 +885,55 @@ void CodeDocument::remove (const int startPos, const int endPos, const bool undo
     }
     else
     {
-        Position startPosition (this, startPos);
-        Position endPosition (this, endPos);
+        Position startPosition (*this, startPos);
+        Position endPosition (*this, endPos);
 
         maximumLineLength = -1;
         const int firstAffectedLine = startPosition.getLineNumber();
         const int endLine = endPosition.getLineNumber();
         int lastAffectedLine = firstAffectedLine + 1;
-        CodeDocumentLine* const firstLine = lines.getUnchecked (firstAffectedLine);
+        CodeDocumentLine& firstLine = *lines.getUnchecked (firstAffectedLine);
 
         if (firstAffectedLine == endLine)
         {
-            firstLine->line = firstLine->line.substring (0, startPosition.getIndexInLine())
-                            + firstLine->line.substring (endPosition.getIndexInLine());
-            firstLine->updateLength();
+            firstLine.line = firstLine.line.substring (0, startPosition.getIndexInLine())
+                           + firstLine.line.substring (endPosition.getIndexInLine());
+            firstLine.updateLength();
         }
         else
         {
             lastAffectedLine = lines.size();
 
-            CodeDocumentLine* const lastLine = lines.getUnchecked (endLine);
-            jassert (lastLine != nullptr);
+            CodeDocumentLine& lastLine = *lines.getUnchecked (endLine);
 
-            firstLine->line = firstLine->line.substring (0, startPosition.getIndexInLine())
-                                + lastLine->line.substring (endPosition.getIndexInLine());
-            firstLine->updateLength();
+            firstLine.line = firstLine.line.substring (0, startPosition.getIndexInLine())
+                            + lastLine.line.substring (endPosition.getIndexInLine());
+            firstLine.updateLength();
 
             int numLinesToRemove = endLine - firstAffectedLine;
             lines.removeRange (firstAffectedLine + 1, numLinesToRemove);
         }
 
-        int i;
-        for (i = firstAffectedLine + 1; i < lines.size(); ++i)
+        for (int i = firstAffectedLine + 1; i < lines.size(); ++i)
         {
-            CodeDocumentLine* const l = lines.getUnchecked (i);
-            const CodeDocumentLine* const previousLine = lines.getUnchecked (i - 1);
-            l->lineStartInFile = previousLine->lineStartInFile + previousLine->lineLength;
+            CodeDocumentLine& l = *lines.getUnchecked (i);
+            const CodeDocumentLine& previousLine = *lines.getUnchecked (i - 1);
+            l.lineStartInFile = previousLine.lineStartInFile + previousLine.lineLength;
         }
 
         checkLastLineStatus();
 
         const int totalChars = getNumCharacters();
 
-        for (i = 0; i < positionsToMaintain.size(); ++i)
+        for (int i = 0; i < positionsToMaintain.size(); ++i)
         {
-            CodeDocument::Position* p = positionsToMaintain.getUnchecked(i);
+            CodeDocument::Position& p = *positionsToMaintain.getUnchecked(i);
 
-            if (p->getPosition() > startPosition.getPosition())
-                p->setPosition (jmax (startPos, p->getPosition() + startPos - endPos));
+            if (p.getPosition() > startPosition.getPosition())
+                p.setPosition (jmax (startPos, p.getPosition() + startPos - endPos));
 
-            if (p->getPosition() > totalChars)
-                p->setPosition (totalChars);
+            if (p.getPosition() > totalChars)
+                p.setPosition (totalChars);
         }
 
         sendListenerChangeMessage (firstAffectedLine, lastAffectedLine);

modules/juce_gui_extra/code_editor/juce_CodeDocument.h

@@ -77,7 +77,7 @@ public:
             Lines are numbered from zero, and if the line or index are beyond the bounds of the document,
             they will be adjusted to keep them within its limits.
         */
-        Position (const CodeDocument* ownerDocument,
+        Position (const CodeDocument& ownerDocument,
                   int line, int indexInLine) noexcept;
 
         /** Creates a position based on a character index in a document.
@@ -87,7 +87,7 @@ public:
             If the position is beyond the range of the document, it'll be adjusted to keep it
             inside.
         */
-        Position (const CodeDocument* ownerDocument,
+        Position (const CodeDocument& ownerDocument,
                   int charactersFromStartOfDocument) noexcept;
 
         /** Creates a copy of another position.
@@ -101,6 +101,7 @@ public:
         ~Position();
 
         Position& operator= (const Position& other);
+
         bool operator== (const Position& other) const noexcept;
         bool operator!= (const Position& other) const noexcept;
 
@@ -159,18 +160,18 @@ public:
             characters.
             @see moveBy
         */
-        const Position movedBy (int characterDelta) const;
+        Position movedBy (int characterDelta) const;
 
         /** Returns a position which is the same as this one, moved up or down by the specified
             number of lines.
             @see movedBy
         */
-        const Position movedByLines (int deltaLines) const;
+        Position movedByLines (int deltaLines) const;
 
         /** Returns the character in the document at this position.
             @see getLineText
         */
-        const juce_wchar getCharacter() const;
+        juce_wchar getCharacter() const;
 
         /** Returns the line from the document that this position is within.
             @see getCharacter, getLineNumber
@@ -334,32 +335,30 @@ public:
     class JUCE_API  Iterator
     {
     public:
-        Iterator (CodeDocument* document);
-        Iterator (const Iterator& other);
+        Iterator (const CodeDocument& document) noexcept;
+        Iterator (const Iterator& other) noexcept;
         Iterator& operator= (const Iterator& other) noexcept;
         ~Iterator() noexcept;
 
         /** Reads the next character and returns it.
             @see peekNextChar
         */
-        juce_wchar nextChar();
+        juce_wchar nextChar() noexcept;
 
         /** Reads the next character without advancing the current position. */
-        juce_wchar peekNextChar() const;
+        juce_wchar peekNextChar() const noexcept;
 
         /** Advances the position by one character. */
-        void skip();
+        void skip() noexcept;
 
-        /** Returns the position of the next character as its position within the
-            whole document.
-        */
+        /** Returns the position as the number of characters from the start of the document. */
         int getPosition() const noexcept        { return position; }
 
         /** Skips over any whitespace characters until the next character is non-whitespace. */
-        void skipWhitespace();
+        void skipWhitespace() noexcept;
 
         /** Skips forward until the next character will be the first character on the next line */
-        void skipToEndOfLine();
+        void skipToEndOfLine() noexcept;
 
         /** Returns the line number of the next character. */
         int getLine() const noexcept            { return line; }
@@ -368,7 +367,7 @@ public:
         bool isEOF() const noexcept;
 
     private:
-        CodeDocument* document;
+        const CodeDocument* document;
         mutable String::CharPointerType charPointer;
         int line, position;
     };

modules/juce_gui_extra/code_editor/juce_CodeEditorComponent.cpp

@@ -45,7 +45,7 @@ public:
         }
         else if (lineNum < document.getNumLines())
         {
-            const CodeDocument::Position pos (&document, lineNum, 0);
+            const CodeDocument::Position pos (document, lineNum, 0);
             createTokens (pos.getPosition(), pos.getLineText(),
                           source, *tokeniser, newTokens);
         }
@@ -59,7 +59,7 @@ public:
         {
             const String line (document.getLine (lineNum));
 
-            CodeDocument::Position lineStart (&document, lineNum, 0), lineEnd (&document, lineNum + 1, 0);
+            CodeDocument::Position lineStart (document, lineNum, 0), lineEnd (document, lineNum + 1, 0);
             newHighlightStart = indexToColumn (jmax (0, selectionStart.getPosition() - lineStart.getPosition()),
                                                line, spacesPerTab);
             newHighlightEnd = indexToColumn (jmin (lineEnd.getPosition() - lineStart.getPosition(), selectionEnd.getPosition() - lineStart.getPosition()),
@@ -71,24 +71,9 @@ public:
             highlightColumnStart = newHighlightStart;
             highlightColumnEnd = newHighlightEnd;
         }
-        else
+        else if (tokens == newTokens)
         {
-            if (tokens.size() == newTokens.size())
-            {
-                bool allTheSame = true;
-
-                for (int i = newTokens.size(); --i >= 0;)
-                {
-                    if (tokens.getReference(i) != newTokens.getReference(i))
-                    {
-                        allTheSame = false;
-                        break;
-                    }
-                }
-
-                if (allTheSame)
-                    return false;
-            }
+            return false;
         }
 
         tokens.swapWithArray (newTokens);
@@ -144,14 +129,14 @@ public:
 private:
     struct SyntaxToken
     {
-        SyntaxToken (const String& text_, const int type) noexcept
-            : text (text_), tokenType (type), width (-1.0f)
+        SyntaxToken (const String& t, const int type) noexcept
+            : text (t), tokenType (type), width (-1.0f)
         {
         }
 
-        bool operator!= (const SyntaxToken& other) const noexcept
+        bool operator== (const SyntaxToken& other) const noexcept
         {
-            return text != other.text || tokenType != other.tokenType;
+            return tokenType == other.tokenType && text == other.text;
         }
 
         String text;
@@ -321,13 +306,13 @@ CodeEditorComponent::CodeEditorComponent (CodeDocument& document_,
       horizontalScrollBar (false),
       codeTokeniser (codeTokeniser_)
 {
-    caretPos = CodeDocument::Position (&document_, 0, 0);
+    caretPos = CodeDocument::Position (document_, 0, 0);
     caretPos.setPositionMaintained (true);
 
-    selectionStart = CodeDocument::Position (&document_, 0, 0);
+    selectionStart = CodeDocument::Position (document_, 0, 0);
     selectionStart.setPositionMaintained (true);
 
-    selectionEnd = CodeDocument::Position (&document_, 0, 0);
+    selectionEnd = CodeDocument::Position (document_, 0, 0);
     selectionEnd.setPositionMaintained (true);
 
     setOpaque (true);
@@ -509,8 +494,8 @@ void CodeEditorComponent::rebuildLineTokens()
 
     jassert (numNeeded == lines.size());
 
-    CodeDocument::Iterator source (&document);
-    getIteratorForPosition (CodeDocument::Position (&document, firstLineOnScreen, 0).getPosition(), source);
+    CodeDocument::Iterator source (document);
+    getIteratorForPosition (CodeDocument::Position (document, firstLineOnScreen, 0).getPosition(), source);
 
     for (int i = 0; i < numNeeded; ++i)
     {
@@ -686,7 +671,7 @@ CodeDocument::Position CodeEditorComponent::getPositionAt (int x, int y)
     const int column = roundToInt ((x - (getGutterSize() - xOffset * charWidth)) / charWidth);
     const int index = columnToIndex (line, column);
 
-    return CodeDocument::Position (&document, line, index);
+    return CodeDocument::Position (document, line, index);
 }
 
 //==============================================================================
@@ -727,25 +712,25 @@ void CodeEditorComponent::insertTabAtCaret()
 
 bool CodeEditorComponent::deleteWhitespaceBackwardsToTabStop()
 {
-    if (! getHighlightedRegion().isEmpty())
-        return false;
-
-    for (;;)
+    if (getHighlightedRegion().isEmpty())
     {
-        const int currentColumn = indexToColumn (caretPos.getLineNumber(), caretPos.getIndexInLine());
+        for (;;)
+        {
+            const int currentColumn = indexToColumn (caretPos.getLineNumber(), caretPos.getIndexInLine());
 
-        if (currentColumn <= 0 || (currentColumn % spacesPerTab) == 0)
-            break;
+            if (currentColumn <= 0 || (currentColumn % spacesPerTab) == 0)
+                break;
 
-        moveCaretLeft (false, true);
-    }
+            moveCaretLeft (false, true);
+        }
 
-    const String selected (getTextInRange (getHighlightedRegion()));
+        const String selected (getTextInRange (getHighlightedRegion()));
 
-    if (selected.isNotEmpty() && selected.trim().isEmpty())
-    {
-        cut();
-        return true;
+        if (selected.isNotEmpty() && selected.trim().isEmpty())
+        {
+            cut();
+            return true;
+        }
     }
 
     return false;
@@ -776,8 +761,8 @@ void CodeEditorComponent::indentSelectedLines (const int spacesToAdd)
 
         if (nonWhitespaceStart > 0 || lineText.trimStart().isNotEmpty())
         {
-            const CodeDocument::Position wsStart (&document, line, 0);
-            const CodeDocument::Position wsEnd   (&document, line, nonWhitespaceStart);
+            const CodeDocument::Position wsStart (document, line, 0);
+            const CodeDocument::Position wsEnd   (document, line, nonWhitespaceStart);
 
             const int numLeadingSpaces = indexToColumn (line, wsEnd.getIndexInLine());
             const int newNumLeadingSpaces = jmax (0, numLeadingSpaces + spacesToAdd);
@@ -803,7 +788,6 @@ void CodeEditorComponent::cut()
 bool CodeEditorComponent::copyToClipboard()
 {
     newTransaction();
-
     const String selection (document.getTextBetween (selectionStart, selectionEnd));
 
     if (selection.isNotEmpty())
@@ -876,7 +860,7 @@ bool CodeEditorComponent::moveCaretDown (const bool selecting)
     newTransaction();
 
     if (caretPos.getLineNumber() == document.getNumLines() - 1)
-        moveCaretTo (CodeDocument::Position (&document, std::numeric_limits<int>::max(), std::numeric_limits<int>::max()), selecting);
+        moveCaretTo (CodeDocument::Position (document, std::numeric_limits<int>::max(), std::numeric_limits<int>::max()), selecting);
     else
         moveLineDelta (1, selecting);
 
@@ -888,7 +872,7 @@ bool CodeEditorComponent::moveCaretUp (const bool selecting)
     newTransaction();
 
     if (caretPos.getLineNumber() == 0)
-        moveCaretTo (CodeDocument::Position (&document, 0, 0), selecting);
+        moveCaretTo (CodeDocument::Position (document, 0, 0), selecting);
     else
         moveLineDelta (-1, selecting);
 
@@ -936,7 +920,7 @@ bool CodeEditorComponent::scrollDown()
 bool CodeEditorComponent::moveCaretToTop (const bool selecting)
 {
     newTransaction();
-    moveCaretTo (CodeDocument::Position (&document, 0, 0), selecting);
+    moveCaretTo (CodeDocument::Position (document, 0, 0), selecting);
     return true;
 }
 
@@ -949,21 +933,21 @@ bool CodeEditorComponent::moveCaretToStartOfLine (const bool selecting)
     if (index >= caretPos.getIndexInLine() && caretPos.getIndexInLine() > 0)
         index = 0;
 
-    moveCaretTo (CodeDocument::Position (&document, caretPos.getLineNumber(), index), selecting);
+    moveCaretTo (CodeDocument::Position (document, caretPos.getLineNumber(), index), selecting);
     return true;
 }
 
 bool CodeEditorComponent::moveCaretToEnd (const bool selecting)
 {
     newTransaction();
-    moveCaretTo (CodeDocument::Position (&document, std::numeric_limits<int>::max(), std::numeric_limits<int>::max()), selecting);
+    moveCaretTo (CodeDocument::Position (document, std::numeric_limits<int>::max(), std::numeric_limits<int>::max()), selecting);
     return true;
 }
 
 bool CodeEditorComponent::moveCaretToEndOfLine (const bool selecting)
 {
     newTransaction();
-    moveCaretTo (CodeDocument::Position (&document, caretPos.getLineNumber(), std::numeric_limits<int>::max()), selecting);
+    moveCaretTo (CodeDocument::Position (document, caretPos.getLineNumber(), std::numeric_limits<int>::max()), selecting);
     return true;
 }
 
@@ -1031,8 +1015,8 @@ bool CodeEditorComponent::deleteForwards (const bool moveInWholeWordSteps)
 bool CodeEditorComponent::selectAll()
 {
     newTransaction();
-    moveCaretTo (CodeDocument::Position (&document, std::numeric_limits<int>::max(), std::numeric_limits<int>::max()), false);
-    moveCaretTo (CodeDocument::Position (&document, 0, 0), true);
+    moveCaretTo (CodeDocument::Position (document, std::numeric_limits<int>::max(), std::numeric_limits<int>::max()), false);
+    moveCaretTo (CodeDocument::Position (document, 0, 0), true);
     return true;
 }
 
@@ -1070,14 +1054,14 @@ Range<int> CodeEditorComponent::getHighlightedRegion() const
 
 void CodeEditorComponent::setHighlightedRegion (const Range<int>& newRange)
 {
-    moveCaretTo (CodeDocument::Position (&document, newRange.getStart()), false);
-    moveCaretTo (CodeDocument::Position (&document, newRange.getEnd()), true);
+    moveCaretTo (CodeDocument::Position (document, newRange.getStart()), false);
+    moveCaretTo (CodeDocument::Position (document, newRange.getEnd()), true);
 }
 
 String CodeEditorComponent::getTextInRange (const Range<int>& range) const
 {
-    return document.getTextBetween (CodeDocument::Position (&document, range.getStart()),
-                                    CodeDocument::Position (&document, range.getEnd()));
+    return document.getTextBetween (CodeDocument::Position (document, range.getStart()),
+                                    CodeDocument::Position (document, range.getEnd()));
 }
 
 //==============================================================================
@@ -1379,7 +1363,7 @@ void CodeEditorComponent::updateCachedIterators (int maxLineNum)
     const int linesBetweenCachedSources = jmax (10, document.getNumLines() / maxNumCachedPositions);
 
     if (cachedIterators.size() == 0)
-        cachedIterators.add (new CodeDocument::Iterator (&document));
+        cachedIterators.add (new CodeDocument::Iterator (document));
 
     if (codeTokeniser != nullptr)
     {
@@ -1458,8 +1442,8 @@ CodeEditorComponent::State::State (const State& other) noexcept
 
 void CodeEditorComponent::State::restoreState (CodeEditorComponent& editor) const
 {
-    editor.moveCaretTo (CodeDocument::Position (&editor.getDocument(), lastSelectionEnd), false);
-    editor.moveCaretTo (CodeDocument::Position (&editor.getDocument(), lastCaretPos), true);
+    editor.moveCaretTo (CodeDocument::Position (editor.getDocument(), lastSelectionEnd), false);
+    editor.moveCaretTo (CodeDocument::Position (editor.getDocument(), lastCaretPos), true);
 
     if (lastTopLine > 0 && lastTopLine < editor.getDocument().getNumLines())
         editor.scrollToLine (lastTopLine);