sourcemap-codec - npm Package Compare versions

Comparing version 1.4.0 to 1.4.1

CHANGELOG.md

 # sourcemap-codec changelog
 
+## 1.4.1
+
+* GO FASTER ([#71](https://github.com/Rich-Harris/sourcemap-codec/pull/71))
+
 ## 1.4.0
@@ -4,0 +8,0 @@

dist/sourcemap-codec.es.js

 var charToInteger = {};
-var integerToChar = {};
-'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='.split('').forEach(function (char, i) {
-    charToInteger[char] = i;
-    integerToChar[i] = char;
-});
-function decode(string) {
-    var result = [];
-    var shift = 0;
-    var value = 0;
-    for (var i = 0; i < string.length; i += 1) {
-        var integer = charToInteger[string[i]];
-        if (integer === undefined) {
-            throw new Error('Invalid character (' + string[i] + ')');
+var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+for (var i = 0; i < chars.length; i++) {
+    charToInteger[chars.charCodeAt(i)] = i;
+}
+function decode(mappings) {
+    var generatedCodeColumn = 0; // first field
+    var sourceFileIndex = 0; // second field
+    var sourceCodeLine = 0; // third field
+    var sourceCodeColumn = 0; // fourth field
+    var nameIndex = 0; // fifth field
+    var decoded = [];
+    var line = [];
+    var segment = [];
+    for (var i = 0, j = 0, shift = 0, value = 0; i < mappings.length; i++) {
+        var c = mappings.charCodeAt(i);
+        if (c === 44) {
+            if (segment.length)
+                line.push(segment);
+            segment = [];
+            j = 0;
         }
-        var hasContinuationBit = integer & 32;
-        integer &= 31;
-        value += integer << shift;
-        if (hasContinuationBit) {
-            shift += 5;
+        else if (c === 59) {
+            if (segment.length)
+                line.push(segment);
+            segment = [];
+            j = 0;
+            decoded.push(line);
+            line = [];
+            generatedCodeColumn = 0;
         }
         else {
-            var shouldNegate = value & 1;
-            value >>= 1;
-            result.push(shouldNegate ? -value : value);
-            // reset
-            value = shift = 0;
+            var integer = charToInteger[c];
+            if (integer === undefined) {
+                throw new Error('Invalid character (' + String.fromCharCode(c) + ')');
+            }
+            var hasContinuationBit = integer & 32;
+            integer &= 31;
+            value += integer << shift;
+            if (hasContinuationBit) {
+                shift += 5;
+            }
+            else {
+                var shouldNegate = value & 1;
+                value >>= 1;
+                var num = shouldNegate ? -value : value;
+                if (j == 0) {
+                    generatedCodeColumn += num;
+                    segment.push(generatedCodeColumn);
+                }
+                else if (j === 1) {
+                    sourceFileIndex += num;
+                    segment.push(sourceFileIndex);
+                }
+                else if (j === 2) {
+                    sourceCodeLine += num;
+                    segment.push(sourceCodeLine);
+                }
+                else if (j === 3) {
+                    sourceCodeColumn += num;
+                    segment.push(sourceCodeColumn);
+                }
+                else if (j === 4) {
+                    nameIndex += num;
+                    segment.push(nameIndex);
+                }
+                j++;
+                value = shift = 0; // reset
+            }
         }
     }
-    return result;
+    if (segment.length)
+        line.push(segment);
+    decoded.push(line);
+    return decoded;
 }
-function encode(value) {
-    var result;
-    if (typeof value === 'number') {
-        result = encodeInteger(value);
-    }
-    else {
-        result = '';
-        for (var i = 0; i < value.length; i += 1) {
-            result += encodeInteger(value[i]);
+function encode(decoded) {
+    var sourceFileIndex = 0; // second field
+    var sourceCodeLine = 0; // third field
+    var sourceCodeColumn = 0; // fourth field
+    var nameIndex = 0; // fifth field
+    var mappings = '';
+    for (var i = 0; i < decoded.length; i++) {
+        var line = decoded[i];
+        if (i > 0)
+            mappings += ';';
+        if (line.length === 0)
+            continue;
+        var generatedCodeColumn = 0; // first field
+        var lineMappings = [];
+        for (var _i = 0, line_1 = line; _i < line_1.length; _i++) {
+            var segment = line_1[_i];
+            var segmentMappings = encodeInteger(segment[0] - generatedCodeColumn);
+            generatedCodeColumn = segment[0];
+            if (segment.length > 1) {
+                segmentMappings +=
+                    encodeInteger(segment[1] - sourceFileIndex) +
+                        encodeInteger(segment[2] - sourceCodeLine) +
+                        encodeInteger(segment[3] - sourceCodeColumn);
+                sourceFileIndex = segment[1];
+                sourceCodeLine = segment[2];
+                sourceCodeColumn = segment[3];
+            }
+            if (segment.length === 5) {
+                segmentMappings += encodeInteger(segment[4] - nameIndex);
+                nameIndex = segment[4];
+            }
+            lineMappings.push(segmentMappings);
         }
+        mappings += lineMappings.join(',');
     }
-    return result;
+    return mappings;
 }
 function encodeInteger(num) {
     var result = '';
-    if (num < 0) {
-        num = (-num << 1) | 1;
-    }
-    else {
-        num <<= 1;
-    }
+    num = num < 0 ? (-num << 1) | 1 : num << 1;
     do {
@@ -59,3 +123,3 @@ var clamped = num & 31;
         }
-        result += integerToChar[clamped];
+        result += chars[clamped];
     } while (num > 0);
@@ -65,93 +129,3 @@ return result;
 
-function decodeSegments(encodedSegments) {
-    var i = encodedSegments.length;
-    var segments = new Array(i);
-    while (i--)
-        segments[i] = decode(encodedSegments[i]);
-    return segments;
-}
-function decode$1(mappings) {
-    var sourceFileIndex = 0; // second field
-    var sourceCodeLine = 0; // third field
-    var sourceCodeColumn = 0; // fourth field
-    var nameIndex = 0; // fifth field
-    var lines = mappings.split(';');
-    var numLines = lines.length;
-    var decoded = new Array(numLines);
-    var i;
-    var j;
-    var line;
-    var generatedCodeColumn;
-    var decodedLine;
-    var segments;
-    var segment;
-    var result;
-    for (i = 0; i < numLines; i += 1) {
-        line = lines[i];
-        generatedCodeColumn = 0; // first field - reset each time
-        decodedLine = [];
-        segments = decodeSegments(line.split(','));
-        for (j = 0; j < segments.length; j += 1) {
-            segment = segments[j];
-            if (!segment.length) {
-                break;
-            }
-            generatedCodeColumn += segment[0];
-            result = [generatedCodeColumn];
-            decodedLine.push(result);
-            if (segment.length === 1) {
-                // only one field!
-                continue;
-            }
-            sourceFileIndex += segment[1];
-            sourceCodeLine += segment[2];
-            sourceCodeColumn += segment[3];
-            result.push(sourceFileIndex, sourceCodeLine, sourceCodeColumn);
-            if (segment.length === 5) {
-                nameIndex += segment[4];
-                result.push(nameIndex);
-            }
-        }
-        decoded[i] = decodedLine;
-    }
-    return decoded;
-}
-function encode$1(decoded) {
-    var offsets = {
-        generatedCodeColumn: 0,
-        sourceFileIndex: 0,
-        sourceCodeLine: 0,
-        sourceCodeColumn: 0,
-        nameIndex: 0 // fifth field
-    };
-    return decoded.map(function (line) {
-        offsets.generatedCodeColumn = 0; // first field - reset each time
-        return line.map(encodeSegment).join(',');
-    }).join(';');
-    function encodeSegment(segment) {
-        if (!segment.length) {
-            return '';
-        }
-        var result = new Array(segment.length);
-        result[0] = segment[0] - offsets.generatedCodeColumn;
-        offsets.generatedCodeColumn = segment[0];
-        if (segment.length === 1) {
-            // only one field!
-            return encode(result);
-        }
-        result[1] = segment[1] - offsets.sourceFileIndex;
-        result[2] = segment[2] - offsets.sourceCodeLine;
-        result[3] = segment[3] - offsets.sourceCodeColumn;
-        offsets.sourceFileIndex = segment[1];
-        offsets.sourceCodeLine = segment[2];
-        offsets.sourceCodeColumn = segment[3];
-        if (segment.length === 5) {
-            result[4] = segment[4] - offsets.nameIndex;
-            offsets.nameIndex = segment[4];
-        }
-        return encode(result);
-    }
-}
-
-export { decode$1 as decode, encode$1 as encode };
+export { decode, encode };
 //# sourceMappingURL=sourcemap-codec.es.js.map

dist/sourcemap-codec.umd.js

@@ -8,53 +8,117 @@ (function (global, factory) {
 var charToInteger = {};
-var integerToChar = {};
-'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='.split('').forEach(function (char, i) {
-    charToInteger[char] = i;
-    integerToChar[i] = char;
-});
-function decode(string) {
-    var result = [];
-    var shift = 0;
-    var value = 0;
-    for (var i = 0; i < string.length; i += 1) {
-        var integer = charToInteger[string[i]];
-        if (integer === undefined) {
-            throw new Error('Invalid character (' + string[i] + ')');
+var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+for (var i = 0; i < chars.length; i++) {
+    charToInteger[chars.charCodeAt(i)] = i;
+}
+function decode(mappings) {
+    var generatedCodeColumn = 0; // first field
+    var sourceFileIndex = 0; // second field
+    var sourceCodeLine = 0; // third field
+    var sourceCodeColumn = 0; // fourth field
+    var nameIndex = 0; // fifth field
+    var decoded = [];
+    var line = [];
+    var segment = [];
+    for (var i = 0, j = 0, shift = 0, value = 0; i < mappings.length; i++) {
+        var c = mappings.charCodeAt(i);
+        if (c === 44) {
+            if (segment.length)
+                line.push(segment);
+            segment = [];
+            j = 0;
         }
-        var hasContinuationBit = integer & 32;
-        integer &= 31;
-        value += integer << shift;
-        if (hasContinuationBit) {
-            shift += 5;
+        else if (c === 59) {
+            if (segment.length)
+                line.push(segment);
+            segment = [];
+            j = 0;
+            decoded.push(line);
+            line = [];
+            generatedCodeColumn = 0;
         }
         else {
-            var shouldNegate = value & 1;
-            value >>= 1;
-            result.push(shouldNegate ? -value : value);
-            // reset
-            value = shift = 0;
+            var integer = charToInteger[c];
+            if (integer === undefined) {
+                throw new Error('Invalid character (' + String.fromCharCode(c) + ')');
+            }
+            var hasContinuationBit = integer & 32;
+            integer &= 31;
+            value += integer << shift;
+            if (hasContinuationBit) {
+                shift += 5;
+            }
+            else {
+                var shouldNegate = value & 1;
+                value >>= 1;
+                var num = shouldNegate ? -value : value;
+                if (j == 0) {
+                    generatedCodeColumn += num;
+                    segment.push(generatedCodeColumn);
+                }
+                else if (j === 1) {
+                    sourceFileIndex += num;
+                    segment.push(sourceFileIndex);
+                }
+                else if (j === 2) {
+                    sourceCodeLine += num;
+                    segment.push(sourceCodeLine);
+                }
+                else if (j === 3) {
+                    sourceCodeColumn += num;
+                    segment.push(sourceCodeColumn);
+                }
+                else if (j === 4) {
+                    nameIndex += num;
+                    segment.push(nameIndex);
+                }
+                j++;
+                value = shift = 0; // reset
+            }
         }
     }
-    return result;
+    if (segment.length)
+        line.push(segment);
+    decoded.push(line);
+    return decoded;
 }
-function encode(value) {
-    var result;
-    if (typeof value === 'number') {
-        result = encodeInteger(value);
-    }
-    else {
-        result = '';
-        for (var i = 0; i < value.length; i += 1) {
-            result += encodeInteger(value[i]);
+function encode(decoded) {
+    var sourceFileIndex = 0; // second field
+    var sourceCodeLine = 0; // third field
+    var sourceCodeColumn = 0; // fourth field
+    var nameIndex = 0; // fifth field
+    var mappings = '';
+    for (var i = 0; i < decoded.length; i++) {
+        var line = decoded[i];
+        if (i > 0)
+            mappings += ';';
+        if (line.length === 0)
+            continue;
+        var generatedCodeColumn = 0; // first field
+        var lineMappings = [];
+        for (var _i = 0, line_1 = line; _i < line_1.length; _i++) {
+            var segment = line_1[_i];
+            var segmentMappings = encodeInteger(segment[0] - generatedCodeColumn);
+            generatedCodeColumn = segment[0];
+            if (segment.length > 1) {
+                segmentMappings +=
+                    encodeInteger(segment[1] - sourceFileIndex) +
+                        encodeInteger(segment[2] - sourceCodeLine) +
+                        encodeInteger(segment[3] - sourceCodeColumn);
+                sourceFileIndex = segment[1];
+                sourceCodeLine = segment[2];
+                sourceCodeColumn = segment[3];
+            }
+            if (segment.length === 5) {
+                segmentMappings += encodeInteger(segment[4] - nameIndex);
+                nameIndex = segment[4];
+            }
+            lineMappings.push(segmentMappings);
         }
+        mappings += lineMappings.join(',');
     }
-    return result;
+    return mappings;
 }
 function encodeInteger(num) {
     var result = '';
-    if (num < 0) {
-        num = (-num << 1) | 1;
-    }
-    else {
-        num <<= 1;
-    }
+    num = num < 0 ? (-num << 1) | 1 : num << 1;
     do {
@@ -66,3 +130,3 @@ var clamped = num & 31;
         }
-        result += integerToChar[clamped];
+        result += chars[clamped];
     } while (num > 0);
@@ -72,95 +136,5 @@ return result;
 
-function decodeSegments(encodedSegments) {
-    var i = encodedSegments.length;
-    var segments = new Array(i);
-    while (i--)
-        segments[i] = decode(encodedSegments[i]);
-    return segments;
-}
-function decode$1(mappings) {
-    var sourceFileIndex = 0; // second field
-    var sourceCodeLine = 0; // third field
-    var sourceCodeColumn = 0; // fourth field
-    var nameIndex = 0; // fifth field
-    var lines = mappings.split(';');
-    var numLines = lines.length;
-    var decoded = new Array(numLines);
-    var i;
-    var j;
-    var line;
-    var generatedCodeColumn;
-    var decodedLine;
-    var segments;
-    var segment;
-    var result;
-    for (i = 0; i < numLines; i += 1) {
-        line = lines[i];
-        generatedCodeColumn = 0; // first field - reset each time
-        decodedLine = [];
-        segments = decodeSegments(line.split(','));
-        for (j = 0; j < segments.length; j += 1) {
-            segment = segments[j];
-            if (!segment.length) {
-                break;
-            }
-            generatedCodeColumn += segment[0];
-            result = [generatedCodeColumn];
-            decodedLine.push(result);
-            if (segment.length === 1) {
-                // only one field!
-                continue;
-            }
-            sourceFileIndex += segment[1];
-            sourceCodeLine += segment[2];
-            sourceCodeColumn += segment[3];
-            result.push(sourceFileIndex, sourceCodeLine, sourceCodeColumn);
-            if (segment.length === 5) {
-                nameIndex += segment[4];
-                result.push(nameIndex);
-            }
-        }
-        decoded[i] = decodedLine;
-    }
-    return decoded;
-}
-function encode$1(decoded) {
-    var offsets = {
-        generatedCodeColumn: 0,
-        sourceFileIndex: 0,
-        sourceCodeLine: 0,
-        sourceCodeColumn: 0,
-        nameIndex: 0 // fifth field
-    };
-    return decoded.map(function (line) {
-        offsets.generatedCodeColumn = 0; // first field - reset each time
-        return line.map(encodeSegment).join(',');
-    }).join(';');
-    function encodeSegment(segment) {
-        if (!segment.length) {
-            return '';
-        }
-        var result = new Array(segment.length);
-        result[0] = segment[0] - offsets.generatedCodeColumn;
-        offsets.generatedCodeColumn = segment[0];
-        if (segment.length === 1) {
-            // only one field!
-            return encode(result);
-        }
-        result[1] = segment[1] - offsets.sourceFileIndex;
-        result[2] = segment[2] - offsets.sourceCodeLine;
-        result[3] = segment[3] - offsets.sourceCodeColumn;
-        offsets.sourceFileIndex = segment[1];
-        offsets.sourceCodeLine = segment[2];
-        offsets.sourceCodeColumn = segment[3];
-        if (segment.length === 5) {
-            result[4] = segment[4] - offsets.nameIndex;
-            offsets.nameIndex = segment[4];
-        }
-        return encode(result);
-    }
-}
+exports.decode = decode;
+exports.encode = encode;
 
-exports.decode = decode$1;
-exports.encode = encode$1;
-
 Object.defineProperty(exports, '__esModule', { value: true });
@@ -167,0 +141,0 @@

package.json

 {
   "name": "sourcemap-codec",
-  "version": "1.4.0",
+  "version": "1.4.1",
   "description": "Encode/decode sourcemap mappings",
@@ -33,5 +33,3 @@ "main": "dist/sourcemap-codec.umd.js",
   "homepage": "https://github.com/Rich-Harris/sourcemap-codec",
-  "dependencies": {
-    "vlq": "^1.0.0"
-  },
+  "dependencies": {},
   "devDependencies": {
@@ -38,0 +36,0 @@ "codecov.io": "^0.1.6",

New alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Fixed alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Dependency count

0

decreased by-100%

Worsened metrics

Total package byte prevSize

14596

decreased by-3.18%

Lines of code

269

decreased by-15.67%

Dependency changes

• - Removedvlq@^1.0.0

• - Removedvlq@1.0.1(transitive)