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| 2 | |
| 3 | |
| 4 |
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| 5 | var base64VLQ = require("./base64-vlq");
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| 6 | var SourceNode = require("./SourceNode");
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| 7 | var CodeNode = require("./CodeNode");
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| 8 | var SourceListMap = require("./SourceListMap");
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| 9 |
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| 10 | module.exports = function fromStringWithSourceMap(code, map) {
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| 11 | var sources = map.sources;
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| 12 | var sourcesContent = map.sourcesContent;
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| 13 | var mappings = map.mappings.split(";");
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| 14 | var lines = code.split("\n");
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| 15 | var nodes = [];
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| 16 | var currentNode = null;
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| 17 | var currentLine = 1;
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| 18 | var currentSourceIdx = 0;
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| 19 | var currentSourceNodeLine;
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| 20 | mappings.forEach(function(mapping, idx) {
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| 21 | var line = lines[idx];
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| 22 | if(typeof line === 'undefined') return;
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| 23 | if(idx !== lines.length - 1) line += "\n";
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| 24 | if(!mapping)
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| 25 | return addCode(line);
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| 26 | mapping = { value: 0, rest: mapping };
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| 27 | var lineAdded = false;
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| 28 | while(mapping.rest)
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| 29 | lineAdded = processMapping(mapping, line, lineAdded) || lineAdded;
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| 30 | if(!lineAdded)
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| 31 | addCode(line);
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| 32 | });
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| 33 | if(mappings.length < lines.length) {
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| 34 | var idx = mappings.length;
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| 35 | while(!lines[idx].trim() && idx < lines.length-1) {
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| 36 | addCode(lines[idx] + "\n");
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| 37 | idx++;
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| 38 | }
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| 39 | addCode(lines.slice(idx).join("\n"));
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| 40 | }
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| 41 | return new SourceListMap(nodes);
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| 42 | function processMapping(mapping, line, ignore) {
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| 43 | if(mapping.rest && mapping.rest[0] !== ",") {
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| 44 | base64VLQ.decode(mapping.rest, mapping);
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| 45 | }
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| 46 | if(!mapping.rest)
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| 47 | return false;
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| 48 | if(mapping.rest[0] === ",") {
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| 49 | mapping.rest = mapping.rest.substr(1);
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| 50 | return false;
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| 51 | }
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| 52 |
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| 53 | base64VLQ.decode(mapping.rest, mapping);
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| 54 | var sourceIdx = mapping.value + currentSourceIdx;
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| 55 | currentSourceIdx = sourceIdx;
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| 56 |
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| 57 | if(mapping.rest && mapping.rest[0] !== ",") {
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| 58 | base64VLQ.decode(mapping.rest, mapping);
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| 59 | var linePosition = mapping.value + currentLine;
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| 60 | currentLine = linePosition;
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| 61 | } else {
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| 62 | var linePosition = currentLine;
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| 63 | }
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| 64 |
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| 65 | if(mapping.rest && mapping.rest[0] === ",") {
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| 66 | mapping.rest = mapping.rest.substr(1);
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| 67 | }
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| 68 |
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| 69 | if(!ignore) {
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| 70 | addSource(line, sources ? sources[sourceIdx] : null, sourcesContent ? sourcesContent[sourceIdx] : null, linePosition)
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| 71 | return true;
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| 72 | }
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| 73 | }
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| 74 | function addCode(generatedCode) {
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| 75 | if(currentNode && currentNode instanceof CodeNode) {
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| 76 | currentNode.addGeneratedCode(generatedCode);
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| 77 | } else if(currentNode && currentNode instanceof SourceNode && !generatedCode.trim()) {
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| 78 | currentNode.generatedCode += generatedCode;
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| 79 | currentSourceNodeLine++;
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| 80 | } else {
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| 81 | currentNode = new CodeNode(generatedCode);
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| 82 | nodes.push(currentNode);
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| 83 | }
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| 84 | }
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| 85 | function addSource(generatedCode, source, originalSource, linePosition) {
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| 86 | if(currentNode && currentNode instanceof SourceNode &&
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| 87 | currentNode.source === source &&
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| 88 | currentSourceNodeLine === linePosition
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| 89 | ) {
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| 90 | currentNode.generatedCode += generatedCode;
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| 91 | currentSourceNodeLine++;
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| 92 | } else {
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| 93 | currentNode = new SourceNode(generatedCode, source, originalSource, linePosition);
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| 94 | currentSourceNodeLine = linePosition + 1;
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| 95 | nodes.push(currentNode);
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| 96 | }
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| 97 | }
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| 98 | };
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