occaecatidicta
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JavaScript
/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @constructor
*/
WebInspector.ScriptFormatter = function()
{
this._tasks = [];
}
/**
* @param {Array.<number>} lineEndings
* @param {number} lineNumber
* @param {number} columnNumber
* @return {number}
*/
WebInspector.ScriptFormatter.locationToPosition = function(lineEndings, lineNumber, columnNumber)
{
var position = lineNumber ? lineEndings[lineNumber - 1] + 1 : 0;
return position + columnNumber;
}
/**
* @param {Array.<number>} lineEndings
* @param {number} position
* @return {Array.<number>}
*/
WebInspector.ScriptFormatter.positionToLocation = function(lineEndings, position)
{
var lineNumber = lineEndings.upperBound(position - 1);
if (!lineNumber)
var columnNumber = position;
else
var columnNumber = position - lineEndings[lineNumber - 1] - 1;
return [lineNumber, columnNumber];
}
WebInspector.ScriptFormatter.prototype = {
/**
* @param {string} mimeType
* @param {string} content
* @param {function(string, WebInspector.FormattedSourceMapping)} callback
*/
formatContent: function(mimeType, content, callback)
{
content = content.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, '');
const method = "format";
var parameters = { mimeType: mimeType, content: content, indentString: " " };
this._tasks.push({ data: parameters, callback: callback });
this._worker.postMessage({ method: method, params: parameters });
},
/**
* @param {WebInspector.Event} event
*/
_didFormatContent: function(event)
{
var task = this._tasks.shift();
var originalContent = task.data.content;
var formattedContent = event.data.content;
var mapping = event.data["mapping"];
var sourceMapping = new WebInspector.FormattedSourceMapping(originalContent.lineEndings(), formattedContent.lineEndings(), mapping);
task.callback(formattedContent, sourceMapping);
},
/**
* @return {Worker}
*/
get _worker()
{
if (!this._cachedWorker) {
this._cachedWorker = new Worker("ScriptFormatterWorker.js");
this._cachedWorker.onmessage = this._didFormatContent.bind(this);
}
return this._cachedWorker;
}
}
/**
* @constructor
*/
WebInspector.FormatterMappingPayload = function()
{
this.original = [];
this.formatted = [];
}
/**
* @constructor
* @param {Array.<number>} originalLineEndings
* @param {Array.<number>} formattedLineEndings
* @param {WebInspector.FormatterMappingPayload} mapping
*/
WebInspector.FormattedSourceMapping = function(originalLineEndings, formattedLineEndings, mapping)
{
this._originalLineEndings = originalLineEndings;
this._formattedLineEndings = formattedLineEndings;
this._mapping = mapping;
}
WebInspector.FormattedSourceMapping.prototype = {
/**
* @param {number} lineNumber
* @param {number} columnNumber
* @return {Array.<number>}
*/
originalToFormatted: function(lineNumber, columnNumber)
{
var originalPosition = WebInspector.ScriptFormatter.locationToPosition(this._originalLineEndings, lineNumber, columnNumber);
var formattedPosition = this._convertPosition(this._mapping.original, this._mapping.formatted, originalPosition);
return WebInspector.ScriptFormatter.positionToLocation(this._formattedLineEndings, formattedPosition);
},
/**
* @param {number} lineNumber
* @param {number} columnNumber
* @return {Array.<number>}
*/
formattedToOriginal: function(lineNumber, columnNumber)
{
var formattedPosition = WebInspector.ScriptFormatter.locationToPosition(this._formattedLineEndings, lineNumber, columnNumber);
var originalPosition = this._convertPosition(this._mapping.formatted, this._mapping.original, formattedPosition);
return WebInspector.ScriptFormatter.positionToLocation(this._originalLineEndings, originalPosition);
},
/**
* @param {Array.<number>} positions1
* @param {Array.<number>} positions2
* @param {number} position
* @return {number}
*/
_convertPosition: function(positions1, positions2, position)
{
var index = positions1.upperBound(position) - 1;
var convertedPosition = positions2[index] + position - positions1[index];
if (index < positions2.length - 1 && convertedPosition > positions2[index + 1])
convertedPosition = positions2[index + 1];
return convertedPosition;
}
}