2015-01-29 17:20:46 +00:00
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// Generated by CoffeeScript 1.9.0
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2013-02-28 20:51:29 +00:00
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(function() {
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2013-03-18 11:46:19 +00:00
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var LineMap, SourceMap;
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2013-03-18 11:23:05 +00:00
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LineMap = (function() {
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Fix #1500, #1574, #3318: Name generated vars uniquely
Any variables generated by CoffeeScript are now made sure to be named to
something not present in the source code being compiled. This way you can no
longer interfere with them, either on purpose or by mistake. (#1500, #1574)
For example, `({a}, _arg) ->` now compiles correctly. (#1574)
As opposed to the somewhat complex implementations discussed in #1500, this
commit takes a very simple approach by saving all used variables names using a
single pass over the token stream. Any generated variables are then made sure
not to exist in that list.
`(@a) -> a` used to be equivalent to `(@a) -> @a`, but now throws a runtime
`ReferenceError` instead (unless `a` exists in an upper scope of course). (#3318)
`(@a) ->` used to compile to `(function(a) { this.a = a; })`. Now it compiles to
`(function(_at_a) { this.a = _at_a; })`. (But you cannot access `_at_a` either,
of course.)
Because of the above, `(@a, a) ->` is now valid; `@a` and `a` are not duplicate
parameters.
Duplicate this-parameters with a reserved word, such as `(@case, @case) ->`,
used to compile but now throws, just like regular duplicate parameters.
2015-01-10 22:04:30 +00:00
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function LineMap(_at_line) {
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this.line = _at_line;
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2013-03-18 11:23:05 +00:00
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this.columns = [];
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2013-02-28 20:51:29 +00:00
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}
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2013-03-18 11:23:05 +00:00
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LineMap.prototype.add = function(column, _arg, options) {
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2013-02-28 20:51:29 +00:00
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var sourceColumn, sourceLine;
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sourceLine = _arg[0], sourceColumn = _arg[1];
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2013-03-01 15:18:37 +00:00
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if (options == null) {
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options = {};
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}
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2013-03-18 11:23:05 +00:00
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if (this.columns[column] && options.noReplace) {
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2013-02-28 20:51:29 +00:00
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return;
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}
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2013-03-18 11:23:05 +00:00
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return this.columns[column] = {
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line: this.line,
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column: column,
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2013-02-28 20:51:29 +00:00
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sourceLine: sourceLine,
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sourceColumn: sourceColumn
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};
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};
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2013-03-18 11:23:05 +00:00
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LineMap.prototype.sourceLocation = function(column) {
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var mapping;
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while (!((mapping = this.columns[column]) || (column <= 0))) {
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column--;
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2013-02-28 20:51:29 +00:00
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}
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2013-03-18 11:23:05 +00:00
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return mapping && [mapping.sourceLine, mapping.sourceColumn];
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2013-02-28 20:51:29 +00:00
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};
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2013-03-18 11:23:05 +00:00
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return LineMap;
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2013-02-28 20:51:29 +00:00
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})();
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2013-03-18 11:23:05 +00:00
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SourceMap = (function() {
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var BASE64_CHARS, VLQ_CONTINUATION_BIT, VLQ_SHIFT, VLQ_VALUE_MASK;
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2013-02-28 20:51:29 +00:00
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function SourceMap() {
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2013-03-18 11:23:05 +00:00
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this.lines = [];
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2013-02-28 20:51:29 +00:00
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}
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2013-03-18 11:23:05 +00:00
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SourceMap.prototype.add = function(sourceLocation, generatedLocation, options) {
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var column, line, lineMap, _base;
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2013-03-01 15:18:37 +00:00
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if (options == null) {
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options = {};
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}
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2013-03-18 11:23:05 +00:00
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line = generatedLocation[0], column = generatedLocation[1];
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lineMap = ((_base = this.lines)[line] || (_base[line] = new LineMap(line)));
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return lineMap.add(column, sourceLocation, options);
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2013-02-28 20:51:29 +00:00
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};
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2013-03-18 11:23:05 +00:00
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SourceMap.prototype.sourceLocation = function(_arg) {
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var column, line, lineMap;
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line = _arg[0], column = _arg[1];
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while (!((lineMap = this.lines[line]) || (line <= 0))) {
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line--;
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2013-02-28 20:51:29 +00:00
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}
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2013-03-18 11:23:05 +00:00
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return lineMap && lineMap.sourceLocation(column);
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2013-02-28 20:51:29 +00:00
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};
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2013-03-18 11:23:05 +00:00
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SourceMap.prototype.generate = function(options, code) {
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2013-03-18 11:36:34 +00:00
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var buffer, lastColumn, lastSourceColumn, lastSourceLine, lineMap, lineNumber, mapping, needComma, v3, writingline, _i, _j, _len, _len1, _ref, _ref1;
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2013-03-18 11:23:05 +00:00
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if (options == null) {
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options = {};
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2013-02-28 20:51:29 +00:00
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}
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2013-03-18 11:23:05 +00:00
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if (code == null) {
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code = null;
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2013-02-28 20:51:29 +00:00
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}
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2013-03-18 11:23:05 +00:00
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writingline = 0;
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lastColumn = 0;
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lastSourceLine = 0;
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lastSourceColumn = 0;
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needComma = false;
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buffer = "";
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2013-03-18 11:36:34 +00:00
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_ref = this.lines;
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for (lineNumber = _i = 0, _len = _ref.length; _i < _len; lineNumber = ++_i) {
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lineMap = _ref[lineNumber];
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if (lineMap) {
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_ref1 = lineMap.columns;
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for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) {
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mapping = _ref1[_j];
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if (!(mapping)) {
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continue;
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}
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while (writingline < mapping.line) {
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lastColumn = 0;
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needComma = false;
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buffer += ";";
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writingline++;
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}
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if (needComma) {
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buffer += ",";
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needComma = false;
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}
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buffer += this.encodeVlq(mapping.column - lastColumn);
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lastColumn = mapping.column;
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buffer += this.encodeVlq(0);
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buffer += this.encodeVlq(mapping.sourceLine - lastSourceLine);
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2013-03-18 13:50:40 +00:00
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lastSourceLine = mapping.sourceLine;
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2013-03-18 11:36:34 +00:00
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buffer += this.encodeVlq(mapping.sourceColumn - lastSourceColumn);
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lastSourceColumn = mapping.sourceColumn;
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needComma = true;
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}
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2013-03-18 11:23:05 +00:00
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}
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2013-03-18 11:36:34 +00:00
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}
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2013-03-18 11:23:05 +00:00
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v3 = {
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version: 3,
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file: options.generatedFile || '',
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sourceRoot: options.sourceRoot || '',
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sources: options.sourceFiles || [''],
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names: [],
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mappings: buffer
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};
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if (options.inline) {
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v3.sourcesContent = [code];
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}
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return JSON.stringify(v3, null, 2);
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2013-02-28 20:51:29 +00:00
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};
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2013-03-18 11:23:05 +00:00
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VLQ_SHIFT = 5;
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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VLQ_CONTINUATION_BIT = 1 << VLQ_SHIFT;
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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VLQ_VALUE_MASK = VLQ_CONTINUATION_BIT - 1;
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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SourceMap.prototype.encodeVlq = function(value) {
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var answer, nextChunk, signBit, valueToEncode;
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answer = '';
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signBit = value < 0 ? 1 : 0;
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valueToEncode = (Math.abs(value) << 1) + signBit;
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while (valueToEncode || !answer) {
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nextChunk = valueToEncode & VLQ_VALUE_MASK;
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valueToEncode = valueToEncode >> VLQ_SHIFT;
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if (valueToEncode) {
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nextChunk |= VLQ_CONTINUATION_BIT;
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}
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answer += this.encodeBase64(nextChunk);
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}
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return answer;
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};
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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BASE64_CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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SourceMap.prototype.encodeBase64 = function(value) {
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return BASE64_CHARS[value] || (function() {
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throw new Error("Cannot Base64 encode value: " + value);
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})();
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};
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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return SourceMap;
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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})();
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2013-02-28 20:51:29 +00:00
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2013-03-18 11:23:05 +00:00
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module.exports = SourceMap;
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2013-02-28 20:51:29 +00:00
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}).call(this);
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