/// <summary>
/// Creates a new compile or evaluation error
/// </summary>
/// <param name="engine"></param>
/// <param name="ex"></param>
internal ScriptError(ScriptEngine engine, JScriptException ex)
{
if (ex.Line == 0)
{
m_Description = ex.Description;
string[] lines = ex.StackTrace.Replace("\r\n", "\n").Split('\n');
int idx = 0;
string line = string.Empty;
for (int i = 1; i < lines.Length; i++)
{
line = lines[i];
line = line.Trim();
idx = line.IndexOf(" in " + engine.Id);
if (idx != -1)
{
break;
}
}
if (line == string.Empty)
{
return;
}
line = line.Substring(idx + (" in " + engine.Id).Length + 1);
idx = line.IndexOf(":");
if (idx == -1)
{
return;
}
string sourceCodeId = line.Substring(0, idx);
idx = line.IndexOf(" ");
if (idx == -1)
{
return;
}
int lineNo = int.Parse(line.Substring(idx + 1));
m_LineNo = lineNo;
m_Description = m_Description + " in " + sourceCodeId;
SetSource(engine.GetCodeBlock(sourceCodeId), m_LineNo);
}
else
{
m_Severity = ex.Severity;
m_Description = ex.Description;
m_LineNo = ex.Line;
m_ColumnNo = ex.Column;
SetSource(ex.LineText, m_LineNo);
}
}
private string GetJSErrorMessage(JScriptException jse)//нужно ускорить работу с генерацией сообщение
{
if (jse.LineText.IsEmpty())
{
return(jse.Message);
}
var line = jse.LineText.Split('\n')[jse.Line - 1];
var end = Math.Min(Math.Max(jse.EndColumn, jse.StartColumn), line.Length + 1);
var start = Math.Max(1, Math.Min(end, jse.StartColumn));
return(jse.GetFullExceptionText() + " line {0} : '{1}!->{2}<-!{3}'".FormatStr(jse.Line, line.Substring(0, start - 1).TrimStart(), line.Substring(start - 1, end - start), line.Substring(end - 1).TrimEnd()));
}
internal void HandleError(JSError errorId, IndexSpan span, LocationResolver resolver, bool forceToError = false) {
var error = new JScriptException(errorId, span, resolver);
if (forceToError) {
error.IsError = true;
} else {
error.IsError = error.Severity < 2;
}
if (!OnCompilerError(error)) {
}
}
/// <summary>
/// Returns a minified version of a given JavaScript.
/// </summary>
/// <param name="resource">JavaScript to be minified</param>
/// <returns>Minified JavaScript</returns>
public string Minify(string resource)
{
if (String.IsNullOrEmpty(resource))
{
return(resource);
}
// Reset error
minificationError = null;
canRecover = true;
try
{
JSParser parser = new JSParser(resource);
parser.CompilerError += parser_CompilerError;
// Parse the resource
Block scriptBlock = parser.Parse(null);
// Get minified code if no error occurs or parser was able to recover
if ((scriptBlock != null) && ((minificationError == null) || ((minificationError != null) && canRecover)))
{
resource = scriptBlock.ToCode();
}
}
catch (JScriptException ex)
{
minificationError = ex;
canRecover = false;
}
if (minificationError != null)
{
if (LogMinifierParseError)
{
// Log exception to event log if allowed
EventLogProvider.LogException("JS Compression", "MINIFYJS", minificationError);
}
if (!canRecover)
{
// Add error info in front of non-minified resource
resource += "\r\n\r\n// Minification failed (line " + minificationError.Line.ToString() + "): " + minificationError.Message;
}
}
return(resource);
}
internal bool OnCompilerError(JScriptException se) {
// format the error code
OnError(
new JScriptExceptionEventArgs(
se,
new ContextError(
se.IsError,
se.Severity,
GetSeverityString(se.Severity),
se.ErrorCode,
se.HelpLink,
se.Line,
se.Column,
se.EndLine,
se.EndColumn,
se.Message
)
)
);
//true means carry on with compilation.
return se.CanRecover;
}
public JScriptExceptionEventArgs(JScriptException exception, ContextError error)
{
Error = error;
Exception = exception;
}
private void parser_CompilerError(object sender, JScriptExceptionEventArgs e)
{
// Store exception and info if the compiler can recover
minificationError = e.Exception;
canRecover = e.Exception.CanRecover;
}
/// <summary>
/// Returns a minified version of a given JavaScript.
/// </summary>
/// <param name="resource">JavaScript to be minified</param>
/// <returns>Minified JavaScript</returns>
public string Minify(string resource)
{
if (String.IsNullOrEmpty(resource))
{
return resource;
}
// Reset error
minificationError = null;
canRecover = true;
try
{
JSParser parser = new JSParser(resource);
parser.CompilerError += parser_CompilerError;
// Parse the resource
Block scriptBlock = parser.Parse(null);
// Get minified code if no error occurs or parser was able to recover
if ((scriptBlock != null) && ((minificationError == null) || ((minificationError != null) && canRecover)))
{
resource = scriptBlock.ToCode();
}
}
catch (JScriptException ex)
{
minificationError = ex;
canRecover = false;
}
if (minificationError != null)
{
if (LogMinifierParseError)
{
// Log exception to event log if allowed
EventLogProvider.LogException("JS Compression", "MINIFYJS", minificationError);
}
if (!canRecover)
{
// Add error info in front of non-minified resource
resource += "\r\n\r\n// Minification failed (line " + minificationError.Line.ToString() + "): " + minificationError.Message;
}
}
return resource;
}
private void parser_CompilerError(object sender, JScriptExceptionEventArgs e)
{
// Store exception and info if the compiler can recover
minificationError = e.Exception;
canRecover = e.Exception.CanRecover;
}
