private AstRoot Parse(CharSequence cs)
{
CompilerEnvirons compilerEnv = new CompilerEnvirons();
compilerEnv.InitFromContext(cx);
ErrorReporter compilationErrorReporter = compilerEnv.GetErrorReporter();
Parser p = new Parser(compilerEnv, compilationErrorReporter);
return p.Parse(cs.ToString(), "<eval>", 1);
}
/// <summary>
/// Compiles
/// <code>source</code>
/// and returns the transformed and optimized
/// <see cref="Rhino.Ast.ScriptNode">Rhino.Ast.ScriptNode</see>
/// </summary>
protected internal virtual ScriptNode Compile(CharSequence source)
{
string mainMethodClassName = "Main";
string scriptClassName = "Main";
CompilerEnvirons compilerEnv = new CompilerEnvirons();
compilerEnv.InitFromContext(cx);
ErrorReporter compilationErrorReporter = compilerEnv.GetErrorReporter();
Parser p = new Parser(compilerEnv, compilationErrorReporter);
AstRoot ast = p.Parse(source.ToString(), "<eval>", 1);
IRFactory irf = new IRFactory(compilerEnv);
ScriptNode tree = irf.TransformTree(ast);
Codegen codegen = new Codegen();
codegen.SetMainMethodClass(mainMethodClassName);
codegen.CompileToClassFile(compilerEnv, scriptClassName, tree, tree.GetEncodedSource(), false);
return tree;
}
/// <exception cref="System.IO.IOException"></exception>
private object CompileImpl(Scriptable scope, TextReader sourceReader, string sourceString, string sourceName, int lineno, object securityDomain, bool returnFunction, Evaluator compiler, ErrorReporter compilationErrorReporter)
{
if (sourceName == null)
{
sourceName = "unnamed script";
}
if (securityDomain != null && GetSecurityController() == null)
{
throw new ArgumentException("securityDomain should be null if setSecurityController() was never called");
}
// One of sourceReader or sourceString has to be null
if (!(sourceReader == null ^ sourceString == null))
{
Kit.CodeBug();
}
// scope should be given if and only if compiling function
if (!(scope == null ^ returnFunction))
{
Kit.CodeBug();
}
CompilerEnvirons compilerEnv = new CompilerEnvirons();
compilerEnv.InitFromContext(this);
if (compilationErrorReporter == null)
{
compilationErrorReporter = compilerEnv.GetErrorReporter();
}
if (debugger != null)
{
if (sourceReader != null)
{
sourceString = Kit.ReadReader(sourceReader);
sourceReader = null;
}
}
Parser p = new Parser(compilerEnv, compilationErrorReporter);
if (returnFunction)
{
p.calledByCompileFunction = true;
}
AstRoot ast;
if (sourceString != null)
{
ast = p.Parse(sourceString, sourceName, lineno);
}
else
{
ast = p.Parse(sourceReader, sourceName, lineno);
}
if (returnFunction)
{
// parser no longer adds function to script node
if (!(ast.GetFirstChild() != null && ast.GetFirstChild().GetType() == Token.FUNCTION))
{
// XXX: the check just looks for the first child
// and allows for more nodes after it for compatibility
// with sources like function() {};;;
throw new ArgumentException("compileFunction only accepts source with single JS function: " + sourceString);
}
}
IRFactory irf = new IRFactory(compilerEnv, compilationErrorReporter);
ScriptNode tree = irf.TransformTree(ast);
// discard everything but the IR tree
p = null;
ast = null;
irf = null;
if (compiler == null)
{
compiler = CreateCompiler();
}
object bytecode = compiler.Compile(compilerEnv, tree, tree.GetEncodedSource(), returnFunction);
if (debugger != null)
{
if (sourceString == null)
{
Kit.CodeBug();
}
if (bytecode is DebuggableScript)
{
DebuggableScript dscript = (DebuggableScript)bytecode;
NotifyDebugger_r(this, dscript, sourceString);
}
else
{
throw new Exception("NOT SUPPORTED");
}
}
object result;
if (returnFunction)
{
result = compiler.CreateFunctionObject(this, scope, bytecode, securityDomain);
}
else
{
result = compiler.CreateScriptObject(bytecode, securityDomain);
}
return result;
}
/// <summary>Check whether a string is ready to be compiled.</summary>
/// <remarks>
/// Check whether a string is ready to be compiled.
/// <p>
/// stringIsCompilableUnit is intended to support interactive compilation of
/// JavaScript. If compiling the string would result in an error
/// that might be fixed by appending more source, this method
/// returns false. In every other case, it returns true.
/// <p>
/// Interactive shells may accumulate source lines, using this
/// method after each new line is appended to check whether the
/// statement being entered is complete.
/// </remarks>
/// <param name="source">the source buffer to check</param>
/// <returns>whether the source is ready for compilation</returns>
/// <since>1.4 Release 2</since>
public bool StringIsCompilableUnit(string source)
{
bool errorseen = false;
CompilerEnvirons compilerEnv = new CompilerEnvirons();
compilerEnv.InitFromContext(this);
// no source name or source text manager, because we're just
// going to throw away the result.
compilerEnv.SetGeneratingSource(false);
Parser p = new Parser(compilerEnv, DefaultErrorReporter.instance);
try
{
p.Parse(source, null, 1);
}
catch (EvaluatorException)
{
errorseen = true;
}
// Return false only if an error occurred as a result of reading past
// the end of the file, i.e. if the source could be fixed by
// appending more source.
if (errorseen && p.Eof())
{
return false;
}
else
{
return true;
}
}
