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- var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator;
- var util = require('./util');
- var REGEX_NEWLINE = /(\r?\n)/;
- var NEWLINE_CODE = 10;
- var isSourceNode = "$$$isSourceNode$$$";
- function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
- this.children = [];
- this.sourceContents = {};
- this.line = aLine == null ? null : aLine;
- this.column = aColumn == null ? null : aColumn;
- this.source = aSource == null ? null : aSource;
- this.name = aName == null ? null : aName;
- this[isSourceNode] = true;
- if (aChunks != null) this.add(aChunks);
- }
- SourceNode.fromStringWithSourceMap =
- function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
-
-
- var node = new SourceNode();
-
-
-
-
- var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
- var remainingLinesIndex = 0;
- var shiftNextLine = function() {
- var lineContents = getNextLine();
-
- var newLine = getNextLine() || "";
- return lineContents + newLine;
- function getNextLine() {
- return remainingLinesIndex < remainingLines.length ?
- remainingLines[remainingLinesIndex++] : undefined;
- }
- };
-
- var lastGeneratedLine = 1, lastGeneratedColumn = 0;
-
-
-
- var lastMapping = null;
- aSourceMapConsumer.eachMapping(function (mapping) {
- if (lastMapping !== null) {
-
-
- if (lastGeneratedLine < mapping.generatedLine) {
-
- addMappingWithCode(lastMapping, shiftNextLine());
- lastGeneratedLine++;
- lastGeneratedColumn = 0;
-
- } else {
-
-
-
- var nextLine = remainingLines[remainingLinesIndex] || '';
- var code = nextLine.substr(0, mapping.generatedColumn -
- lastGeneratedColumn);
- remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn -
- lastGeneratedColumn);
- lastGeneratedColumn = mapping.generatedColumn;
- addMappingWithCode(lastMapping, code);
-
- lastMapping = mapping;
- return;
- }
- }
-
-
-
- while (lastGeneratedLine < mapping.generatedLine) {
- node.add(shiftNextLine());
- lastGeneratedLine++;
- }
- if (lastGeneratedColumn < mapping.generatedColumn) {
- var nextLine = remainingLines[remainingLinesIndex] || '';
- node.add(nextLine.substr(0, mapping.generatedColumn));
- remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn);
- lastGeneratedColumn = mapping.generatedColumn;
- }
- lastMapping = mapping;
- }, this);
-
- if (remainingLinesIndex < remainingLines.length) {
- if (lastMapping) {
-
- addMappingWithCode(lastMapping, shiftNextLine());
- }
-
- node.add(remainingLines.splice(remainingLinesIndex).join(""));
- }
-
- aSourceMapConsumer.sources.forEach(function (sourceFile) {
- var content = aSourceMapConsumer.sourceContentFor(sourceFile);
- if (content != null) {
- if (aRelativePath != null) {
- sourceFile = util.join(aRelativePath, sourceFile);
- }
- node.setSourceContent(sourceFile, content);
- }
- });
- return node;
- function addMappingWithCode(mapping, code) {
- if (mapping === null || mapping.source === undefined) {
- node.add(code);
- } else {
- var source = aRelativePath
- ? util.join(aRelativePath, mapping.source)
- : mapping.source;
- node.add(new SourceNode(mapping.originalLine,
- mapping.originalColumn,
- source,
- code,
- mapping.name));
- }
- }
- };
- SourceNode.prototype.add = function SourceNode_add(aChunk) {
- if (Array.isArray(aChunk)) {
- aChunk.forEach(function (chunk) {
- this.add(chunk);
- }, this);
- }
- else if (aChunk[isSourceNode] || typeof aChunk === "string") {
- if (aChunk) {
- this.children.push(aChunk);
- }
- }
- else {
- throw new TypeError(
- "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
- );
- }
- return this;
- };
- SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
- if (Array.isArray(aChunk)) {
- for (var i = aChunk.length-1; i >= 0; i--) {
- this.prepend(aChunk[i]);
- }
- }
- else if (aChunk[isSourceNode] || typeof aChunk === "string") {
- this.children.unshift(aChunk);
- }
- else {
- throw new TypeError(
- "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
- );
- }
- return this;
- };
- SourceNode.prototype.walk = function SourceNode_walk(aFn) {
- var chunk;
- for (var i = 0, len = this.children.length; i < len; i++) {
- chunk = this.children[i];
- if (chunk[isSourceNode]) {
- chunk.walk(aFn);
- }
- else {
- if (chunk !== '') {
- aFn(chunk, { source: this.source,
- line: this.line,
- column: this.column,
- name: this.name });
- }
- }
- }
- };
- SourceNode.prototype.join = function SourceNode_join(aSep) {
- var newChildren;
- var i;
- var len = this.children.length;
- if (len > 0) {
- newChildren = [];
- for (i = 0; i < len-1; i++) {
- newChildren.push(this.children[i]);
- newChildren.push(aSep);
- }
- newChildren.push(this.children[i]);
- this.children = newChildren;
- }
- return this;
- };
- SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
- var lastChild = this.children[this.children.length - 1];
- if (lastChild[isSourceNode]) {
- lastChild.replaceRight(aPattern, aReplacement);
- }
- else if (typeof lastChild === 'string') {
- this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
- }
- else {
- this.children.push(''.replace(aPattern, aReplacement));
- }
- return this;
- };
- SourceNode.prototype.setSourceContent =
- function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
- this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
- };
- SourceNode.prototype.walkSourceContents =
- function SourceNode_walkSourceContents(aFn) {
- for (var i = 0, len = this.children.length; i < len; i++) {
- if (this.children[i][isSourceNode]) {
- this.children[i].walkSourceContents(aFn);
- }
- }
- var sources = Object.keys(this.sourceContents);
- for (var i = 0, len = sources.length; i < len; i++) {
- aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
- }
- };
- SourceNode.prototype.toString = function SourceNode_toString() {
- var str = "";
- this.walk(function (chunk) {
- str += chunk;
- });
- return str;
- };
- SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
- var generated = {
- code: "",
- line: 1,
- column: 0
- };
- var map = new SourceMapGenerator(aArgs);
- var sourceMappingActive = false;
- var lastOriginalSource = null;
- var lastOriginalLine = null;
- var lastOriginalColumn = null;
- var lastOriginalName = null;
- this.walk(function (chunk, original) {
- generated.code += chunk;
- if (original.source !== null
- && original.line !== null
- && original.column !== null) {
- if(lastOriginalSource !== original.source
- || lastOriginalLine !== original.line
- || lastOriginalColumn !== original.column
- || lastOriginalName !== original.name) {
- map.addMapping({
- source: original.source,
- original: {
- line: original.line,
- column: original.column
- },
- generated: {
- line: generated.line,
- column: generated.column
- },
- name: original.name
- });
- }
- lastOriginalSource = original.source;
- lastOriginalLine = original.line;
- lastOriginalColumn = original.column;
- lastOriginalName = original.name;
- sourceMappingActive = true;
- } else if (sourceMappingActive) {
- map.addMapping({
- generated: {
- line: generated.line,
- column: generated.column
- }
- });
- lastOriginalSource = null;
- sourceMappingActive = false;
- }
- for (var idx = 0, length = chunk.length; idx < length; idx++) {
- if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
- generated.line++;
- generated.column = 0;
-
- if (idx + 1 === length) {
- lastOriginalSource = null;
- sourceMappingActive = false;
- } else if (sourceMappingActive) {
- map.addMapping({
- source: original.source,
- original: {
- line: original.line,
- column: original.column
- },
- generated: {
- line: generated.line,
- column: generated.column
- },
- name: original.name
- });
- }
- } else {
- generated.column++;
- }
- }
- });
- this.walkSourceContents(function (sourceFile, sourceContent) {
- map.setSourceContent(sourceFile, sourceContent);
- });
- return { code: generated.code, map: map };
- };
- exports.SourceNode = SourceNode;
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