Remove some unused variables from src/

Only obviously useless, local variables have been removed.

src/core/bidi.js

@@ -99,46 +99,6 @@ var bidi = PDFJS.bidi = (function bidiClosure() {
     }
   }
 
-  function mirrorGlyphs(c) {
-    /*
-     # BidiMirroring-1.txt
-     0028; 0029 # LEFT PARENTHESIS
-     0029; 0028 # RIGHT PARENTHESIS
-     003C; 003E # LESS-THAN SIGN
-     003E; 003C # GREATER-THAN SIGN
-     005B; 005D # LEFT SQUARE BRACKET
-     005D; 005B # RIGHT SQUARE BRACKET
-     007B; 007D # LEFT CURLY BRACKET
-     007D; 007B # RIGHT CURLY BRACKET
-     00AB; 00BB # LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
-     00BB; 00AB # RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
-     */
-    switch (c) {
-      case '(':
-        return ')';
-      case ')':
-        return '(';
-      case '<':
-        return '>';
-      case '>':
-        return '<';
-      case ']':
-        return '[';
-      case '[':
-        return ']';
-      case '}':
-        return '{';
-      case '{':
-        return '}';
-      case '\u00AB':
-        return '\u00BB';
-      case '\u00BB':
-        return '\u00AB';
-      default:
-        return c;
-    }
-  }
-
   function createBidiText(str, isLTR, vertical) {
     return {
       str: str,

src/core/chunked_stream.js

@@ -237,7 +237,6 @@ var ChunkedStream = (function ChunkedStreamClosure() {
 var ChunkedStreamManager = (function ChunkedStreamManagerClosure() {
 
   function ChunkedStreamManager(length, chunkSize, url, args) {
-    var self = this;
     this.stream = new ChunkedStream(length, chunkSize, this);
     this.length = length;
     this.chunkSize = chunkSize;

src/core/evaluator.js

@@ -509,7 +509,6 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
 
       var self = this;
       var xref = this.xref;
-      var handler = this.handler;
       var imageCache = {};
 
       operatorList = (operatorList || new OperatorList());
@@ -520,7 +519,6 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       var stateManager = new StateManager(initialState || new EvalState());
       var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager);
 
-      var promise = new LegacyPromise();
       var operation, i, ii;
       while ((operation = preprocessor.read())) {
         var args = operation.args;
@@ -706,7 +704,6 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
       var xobjsCache = {};
 
       var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager);
-      var res = resources;
 
       var operation;
       var textState;
@@ -1091,7 +1088,6 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
 
     readToUnicode: function PartialEvaluator_readToUnicode(toUnicode) {
       var cmapObj = toUnicode;
-      var charToUnicode = [];
       if (isName(cmapObj)) {
         return CMapFactory.create(cmapObj).map;
       } else if (isStream(cmapObj)) {

src/core/font_renderer.js

@@ -148,10 +148,6 @@ var FontRendererFactory = (function FontRendererFactoryClosure() {
 
     var i = 0;
     var numberOfContours = ((code[i] << 24) | (code[i + 1] << 16)) >> 16;
-    var xMin = ((code[i + 2] << 24) | (code[i + 3] << 16)) >> 16;
-    var yMin = ((code[i + 4] << 24) | (code[i + 5] << 16)) >> 16;
-    var xMax = ((code[i + 6] << 24) | (code[i + 7] << 16)) >> 16;
-    var yMax = ((code[i + 8] << 24) | (code[i + 9] << 16)) >> 16;
     var flags;
     var x = 0, y = 0;
     i += 10;

src/core/fonts.js

@@ -2423,7 +2423,6 @@ var Font = (function FontClosure() {
     var isIdentityUnicode = properties.isIdentityUnicode;
     var newMap = Object.create(null);
     var toFontChar = [];
-    var usedCharCodes = [];
     var usedFontCharCodes = [];
     var nextAvailableFontCharCode = PRIVATE_USE_OFFSET_START;
     for (var originalCharCode in charCodeToGlyphId) {
@@ -3049,8 +3048,6 @@ var Font = (function FontClosure() {
           var firstCode = font.getUint16();
           var entryCount = font.getUint16();
 
-          var glyphs = [];
-          var ids = [];
           for (j = 0; j < entryCount; j++) {
             glyphId = font.getUint16();
             var charCode = firstCode + j;
@@ -3438,7 +3435,6 @@ var Font = (function FontClosure() {
           }
           font.pos = pos;
           var nameIndex = record.name;
-          var encoding = record.encoding ? 1 : 0;
           if (record.encoding) {
             // unicode
             var str = '';
@@ -4030,8 +4026,6 @@ var Font = (function FontClosure() {
       // to write the table entry information about a table and another offset
       // representing the offset where to draw the actual data of a particular
       // table
-      var REQ_TABLES_CNT = 9;
-
       var otf = {
         file: '',
         virtualOffset: 9 * (4 * 4)
@@ -5812,7 +5806,6 @@ var CFFParser = (function CFFParserClosure() {
       var bytes = this.bytes;
       var count = (bytes[pos++] << 8) | bytes[pos++];
       var offsets = [];
-      var start = pos;
       var end = pos;
       var i, ii;
 
@@ -5875,8 +5868,6 @@ var CFFParser = (function CFFParserClosure() {
     },
     createDict: function CFFParser_createDict(Type, dict, strings) {
       var cffDict = new Type(strings);
-      var types = cffDict.types;
-
       for (var i = 0, ii = dict.length; i < ii; ++i) {
         var pair = dict[i];
         var key = pair[0];
@@ -6444,11 +6435,6 @@ var CFFCharsetPredefinedTypes = {
   EXPERT: 1,
   EXPERT_SUBSET: 2
 };
-var CFFCharsetEmbeddedTypes = {
-  FORMAT0: 0,
-  FORMAT1: 1,
-  FORMAT2: 2
-};
 var CFFCharset = (function CFFCharsetClosure() {
   function CFFCharset(predefined, format, charset, raw) {
     this.predefined = predefined;
@@ -6459,14 +6445,6 @@ var CFFCharset = (function CFFCharsetClosure() {
   return CFFCharset;
 })();
 
-var CFFEncodingPredefinedTypes = {
-  STANDARD: 0,
-  EXPERT: 1
-};
-var CFFCharsetEmbeddedTypes = {
-  FORMAT0: 0,
-  FORMAT1: 1
-};
 var CFFEncoding = (function CFFEncodingClosure() {
   function CFFEncoding(predefined, format, encoding, raw) {
     this.predefined = predefined;
@@ -6930,7 +6908,6 @@ var CFFCompiler = (function CFFCompilerClosure() {
           relativeOffset += objects[i].length;
         }
       }
-      var offset = data.length;
 
       for (i = 0; i < count; i++) {
         // Notify the tracker where the object will be offset in the data.

src/core/image.js

@@ -265,7 +265,6 @@ var PDFImage = (function PDFImageClosure() {
     },
     decodeBuffer: function PDFImage_decodeBuffer(buffer) {
       var bpc = this.bpc;
-      var decodeMap = this.decode;
       var numComps = this.numComps;
 
       var decodeAddends = this.decodeAddends;

src/core/jpx.js

@@ -428,7 +428,6 @@ var JpxImage = (function JpxImageClosure() {
     var componentsCount = siz.Csiz;
     for (var i = 0, ii = componentsCount; i < ii; i++) {
       var component = components[i];
-      var tileComponents = [];
       for (var j = 0, jj = tiles.length; j < jj; j++) {
         var tileComponent = {};
         tile = tiles[j];
@@ -497,7 +496,7 @@ var JpxImage = (function JpxImageClosure() {
     var precinctParameters = subband.resolution.precinctParameters;
     var codeblocks = [];
     var precincts = [];
-    var i, ii, j, codeblock, precinctNumber;
+    var i, j, codeblock, precinctNumber;
     for (j = cby0; j < cby1; j++) {
       for (i = cbx0; i < cbx1; i++) {
         codeblock = {
@@ -522,8 +521,6 @@ var JpxImage = (function JpxImageClosure() {
         codeblock.tby1_ = Math.min(subband.tby1, codeblock.tby1);
         codeblock.precinctNumber = precinctNumber;
         codeblock.subbandType = subband.type;
-        var coefficientsLength = (codeblock.tbx1_ - codeblock.tbx0_) *
-                                 (codeblock.tby1_ - codeblock.tby0_);
         codeblock.Lblock = 3;
         codeblocks.push(codeblock);
         // building precinct for the sub-band
@@ -742,7 +739,6 @@ var JpxImage = (function JpxImageClosure() {
     }
     // Generate the packets sequence
     var progressionOrder = tile.codingStyleDefaultParameters.progressionOrder;
-    var packetsIterator;
     switch (progressionOrder) {
       case 0:
         tile.packetsIterator =
@@ -966,7 +962,7 @@ var JpxImage = (function JpxImageClosure() {
       }
 
       var offset = (codeblock.tbx0_ - x0) + (codeblock.tby0_ - y0) * width;
-      var n, nb, correction, position = 0;
+      var n, nb, position = 0;
       var irreversible = !reversible;
       var sign = bitModel.coefficentsSign;
       var magnitude = bitModel.coefficentsMagnitude;
@@ -1077,7 +1073,7 @@ var JpxImage = (function JpxImageClosure() {
 
       // Section G.2.2 Inverse multi component transform
       var y0items, y1items, y2items, j, jj, y0, y1, y2;
-      var component, offset, tileImage, items;
+      var component, tileImage, items;
       if (tile.codingStyleDefaultParameters.multipleComponentTransform) {
         var component0 = tile.components[0];
         if (!component0.codingStyleParameters.reversibleTransformation) {
@@ -1130,7 +1126,6 @@ var JpxImage = (function JpxImageClosure() {
     var siz = context.SIZ;
     var componentsCount = siz.Csiz;
     var tile = context.tiles[tileIndex];
-    var resultTiles = [];
     for (var c = 0; c < componentsCount; c++) {
       var component = tile.components[c];
       var qcdOrQcc = (c in context.currentTile.QCC ?
@@ -1393,7 +1388,6 @@ var JpxImage = (function JpxImageClosure() {
         var width = this.width, height = this.height;
         var coefficentsMagnitude = this.coefficentsMagnitude;
         var coefficentsSign = this.coefficentsSign;
-        var contextLabels = this.contextLabels;
         var neighborsSignificance = this.neighborsSignificance;
         var processingFlags = this.processingFlags;
         var contexts = this.contexts;
@@ -1531,7 +1525,6 @@ var JpxImage = (function JpxImageClosure() {
         var decoder = this.decoder;
         var width = this.width, height = this.height;
         var neighborsSignificance = this.neighborsSignificance;
-        var significanceState = this.significanceState;
         var coefficentsMagnitude = this.coefficentsMagnitude;
         var coefficentsSign = this.coefficentsSign;
         var contexts = this.contexts;
@@ -1795,7 +1788,7 @@ var JpxImage = (function JpxImageClosure() {
       var delta = 0.443506852043971;
       var K = 1.230174104914001;
       var K_ = 1 / K;
-      var j, n, nn;
+      var j, n;
 
       // step 1 is combined with step 3
 

src/core/obj.js

@@ -940,8 +940,6 @@ var XRef = (function XRefClosure() {
       var buffer = stream.getBytes();
       var position = stream.start, length = buffer.length;
       var trailers = [], xrefStms = [];
-      var state = 0;
-      var currentToken;
       while (position < length) {
         var ch = buffer[position];
         if (ch === 32 || ch === 9 || ch === 13 || ch === 10) {

src/core/parser.js

@@ -503,7 +503,6 @@ var Lexer = (function LexerClosure() {
         } else if (ch === 0x45 || ch === 0x65) { // 'E', 'e'
           // 'E' can be either a scientific notation or the beginning of a new
           // operator
-          var hasE = true;
           ch = this.peekChar();
           if (ch === 0x2B || ch === 0x2D) { // '+', '-'
             powerValueSign = (ch === 0x2D) ? -1 : 1;
@@ -781,7 +780,6 @@ var Lexer = (function LexerClosure() {
       return Cmd.get(str);
     },
     skipToNextLine: function Lexer_skipToNextLine() {
-      var stream = this.stream;
       var ch = this.currentChar;
       while (ch >= 0) {
         if (ch === 0x0D) { // CR

src/core/pattern.js

@@ -361,7 +361,6 @@ Shadings.Mesh = (function MeshClosure() {
   function decodeType5Shading(mesh, reader, verticesPerRow) {
     var coords = mesh.coords;
     var colors = mesh.colors;
-    var operators = [];
     var ps = []; // not maintaining cs since that will match ps
     while (reader.hasData) {
       var coord = reader.readCoordinate();

src/core/ps_parser.js

@@ -143,7 +143,6 @@ var PostScriptLexer = (function PostScriptLexerClosure() {
       return (this.currentChar = this.stream.getByte());
     },
     getToken: function PostScriptLexer_getToken() {
-      var s = '';
       var comment = false;
       var ch = this.currentChar;
 

src/core/stream.js

@@ -2212,7 +2212,6 @@ var CCITTFaxStream = (function CCITTFaxStreamClosure() {
 
     var code = 0;
     var p;
-    var n;
     if (this.eoblock) {
       code = this.lookBits(12);
       if (code == EOF) {

src/display/canvas.js

@@ -462,7 +462,6 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
     // imgData.kind tells us which one this is.
     if (imgData.kind === ImageKind.GRAYSCALE_1BPP) {
       // Grayscale, 1 bit per pixel (i.e. black-and-white).
-      var destDataLength = dest.length;
       var srcLength = src.byteLength;
       var dest32 = PDFJS.hasCanvasTypedArrays ? new Uint32Array(dest.buffer) :
         new Uint32ArrayView(dest);
@@ -733,7 +732,6 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
         return i;
       }
 
-      var executionEndIdx;
       var endTime = Date.now() + EXECUTION_TIME;
 
       var commonObjs = this.commonObjs;
@@ -1309,7 +1307,6 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
       var vertical = font.vertical;
       var defaultVMetrics = font.defaultVMetrics;
       var i, glyph, width;
-      var VERTICAL_TEXT_ROTATION = Math.PI / 2;
 
       if (fontSize === 0) {
         return;
@@ -1437,7 +1434,6 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
       }
     },
     showSpacedText: function CanvasGraphics_showSpacedText(arr) {
-      var ctx = this.ctx;
       var current = this.current;
       var font = current.font;
       var fontSize = current.fontSize;
@@ -1513,8 +1509,6 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
         var base = cs.base;
         var color;
         if (base) {
-          var baseComps = base.numComps;
-
           color = base.getRgb(args, 0);
         }
         pattern = new TilingPattern(IR, color, this.ctx, this.objs,

src/display/pattern_helper.js

@@ -215,13 +215,13 @@ var createMeshCanvas = (function createMeshCanvasClosure() {
 
 ShadingIRs.Mesh = {
   fromIR: function Mesh_fromIR(raw) {
-    var type = raw[1];
+    //var type = raw[1];
     var coords = raw[2];
     var colors = raw[3];
     var figures = raw[4];
     var bounds = raw[5];
     var matrix = raw[6];
-    var bbox = raw[7];
+    //var bbox = raw[7];
     var background = raw[8];
     return {
       type: 'Pattern',
@@ -318,7 +318,6 @@ var TilingPattern = (function TilingPatternClosure() {
       var color = this.color;
       var objs = this.objs;
       var commonObjs = this.commonObjs;
-      var ctx = this.ctx;
 
       info('TilingType: ' + tilingType);
 

src/shared/annotation.js

@@ -237,8 +237,6 @@ var Annotation = (function AnnotationClosure() {
       var matrix = appearanceDict.get('Matrix') || [1, 0, 0, 1, 0 ,0];
       var transform = getTransformMatrix(data.rect, bbox, matrix);
 
-      var border = data.border;
-
       resourcesPromise.then(function(resources) {
         var opList = new OperatorList();
         opList.addOp(OPS.beginAnnotation, [data.rect, transform, matrix]);
@@ -464,7 +462,6 @@ var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
   }
 
 
-  var parent = WidgetAnnotation.prototype;
   Util.inherit(TextWidgetAnnotation, WidgetAnnotation, {
     hasHtml: function TextWidgetAnnotation_hasHtml() {
       return !this.data.hasAppearance && !!this.data.fieldValue;
@@ -487,7 +484,7 @@ var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
 
       var fontObj = item.fontRefName ?
                     commonObjs.getData(item.fontRefName) : null;
-      var cssRules = setTextStyles(content, item, fontObj);
+      setTextStyles(content, item, fontObj);
 
       element.appendChild(content);
 
@@ -519,7 +516,6 @@ var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() {
       var appearanceFnArray = opList.fnArray;
       var appearanceArgsArray = opList.argsArray;
       var fnArray = [];
-      var argsArray = [];
 
       // TODO(mack): Add support for stroke color
       data.rgb = [0, 0, 0];
@@ -735,7 +731,6 @@ var TextAnnotation = (function TextAnnotationClosure() {
           }
         };
 
-        var self = this;
         image.addEventListener('click', function image_clickHandler() {
           toggleAnnotation();
         }, false);
@@ -840,7 +835,6 @@ var LinkAnnotation = (function LinkAnnotationClosure() {
       container.className = 'annotLink';
 
       var item = this.data;
-      var rect = item.rect;
 
       container.style.borderColor = item.colorCssRgb;
       container.style.borderStyle = 'solid';

src/shared/fonts_utils.js

@@ -88,7 +88,7 @@ function readCharstringEncoding(aString) {
     } else if (value <= 18) {
       token = CFFEncodingMap[value];
     } else if (value <= 20) {
-      var mask = aString[i++];
+      ++i; // var mask = aString[i++];
       token = CFFEncodingMap[value];
     } else if (value <= 27) {
       token = CFFEncodingMap[value];
@@ -340,7 +340,6 @@ var Type2Parser = function type2Parser(aFilePath) {
     }
 
     // Parse the TopDict operator
-    var objects = [];
     var count = topDict.length;
     for (i = 0; i < count; i++) {
       parseAsToken(topDict[i], CFFDictDataMap);

src/shared/function.js

@@ -99,7 +99,6 @@ var PDFFunction = (function PDFFunctionClosure() {
     constructSampled: function PDFFunction_constructSampled(str, dict) {
       function toMultiArray(arr) {
         var inputLength = arr.length;
-        var outputLength = arr.length / 2;
         var out = [];
         var index = 0;
         for (var i = 0; i < inputLength; i += 2) {
@@ -170,7 +169,7 @@ var PDFFunction = (function PDFFunctionClosure() {
         var samples = IR[5];
         var size = IR[6];
         var n = IR[7];
-        var mask = IR[8];
+        //var mask = IR[8];
         var range = IR[9];
 
         if (m != args.length) {