internal TokenStream(Parser parser, System.IO.StreamReader sourceReader, string sourceString, int lineno)
{
this.parser = parser;
this.lineno = lineno;
if (sourceReader != null)
{
if (sourceString != null)
Context.CodeBug();
this.sourceReader = sourceReader;
this.sourceBuffer = new char[512];
this.sourceEnd = 0;
}
else
{
if (sourceString == null)
Context.CodeBug();
this.sourceString = sourceString;
this.sourceEnd = sourceString.Length;
}
this.sourceCursor = 0;
}
private static ArrayList Parse(StreamReader stream,
ErrorReporter reporter)
{
var compilerEnvirons = new CompilerEnvirons();
var parser = new Parser(compilerEnvirons, reporter);
parser.Parse(stream, null, 1);
string source = parser.EncodedSource;
int offset = 0;
int length = source.Length;
var tokens = new ArrayList();
var stringBuilder = new StringBuilder();
while (offset < length)
{
int tt = source[offset++];
switch (tt)
{
case Token.CONDCOMMENT:
case Token.KEEPCOMMENT:
case Token.NAME:
case Token.REGEXP:
case Token.STRING:
stringBuilder.Length = 0;
offset = PrintSourceString(source,
offset,
stringBuilder);
tokens.Add(new JavaScriptToken(tt, stringBuilder.ToString()));
break;
case Token.NUMBER:
stringBuilder.Length = 0;
offset = PrintSourceNumber(source, offset, stringBuilder);
tokens.Add(new JavaScriptToken(tt, stringBuilder.ToString()));
break;
default:
var literal = (string) Literals[tt];
if (literal != null)
{
tokens.Add(new JavaScriptToken(tt, literal));
}
break;
}
}
return tokens;
}
/// <summary> 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.
///
/// </summary>
/// <param name="source">the source buffer to check
/// </param>
/// <returns> whether the source is ready for compilation
/// </returns>
public ScriptOrFnNode IsCompilableUnit(string source)
{
ScriptOrFnNode ret = null;
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 {
ret = p.Parse (source, null, 1);
}
catch (EcmaScriptRuntimeException) {
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 ret;
return null;
}
private object CompileImpl(IScriptable scope, StreamReader sourceReader, string sourceString, string sourceName, int lineno, object securityDomain, bool returnFunction, Interpreter compiler, ErrorReporter compilationErrorReporter)
{
if (securityDomain != null && securityController == 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))
Context.CodeBug ();
// scope should be given if and only if compiling function
if (!(scope == null ^ returnFunction))
Context.CodeBug ();
CompilerEnvirons compilerEnv = new CompilerEnvirons ();
compilerEnv.initFromContext (this);
if (compilationErrorReporter == null) {
compilationErrorReporter = compilerEnv.getErrorReporter ();
}
if (m_Debugger != null) {
if (sourceReader != null) {
sourceString = sourceReader.ReadToEnd ();
sourceReader = null;
}
}
Parser p = new Parser (compilerEnv, compilationErrorReporter);
if (returnFunction) {
p.calledByCompileFunction = true;
}
ScriptOrFnNode tree;
if (sourceString != null) {
tree = p.Parse (sourceString, sourceName, lineno);
}
else {
tree = p.Parse (sourceReader, sourceName, lineno);
}
if (returnFunction) {
if (!(tree.FunctionCount == 1 && tree.FirstChild != null && tree.FirstChild.Type == Token.FUNCTION)) {
// TODO: the check just look for the first child
// TODO: and allows for more nodes after it for compatibility
// TODO: with sources like function() {};;;
throw new ArgumentException ("compileFunction only accepts source with single JS function: " + sourceString);
}
}
if (compiler == null) {
compiler = new Interpreter ();
//compiler = new Compiler();
}
string encodedSource = p.EncodedSource;
object bytecode = compiler.Compile (compilerEnv, tree, encodedSource, returnFunction);
if (m_Debugger != null) {
if (sourceString == null)
Context.CodeBug ();
if (bytecode is DebuggableScript) {
DebuggableScript dscript = (DebuggableScript)bytecode;
NotifyDebugger (this, dscript, sourceString);
}
else {
throw new ApplicationException ("NOT SUPPORTED");
}
}
object result;
if (returnFunction) {
result = compiler.CreateFunctionObject (this, scope, bytecode, securityDomain);
}
else {
result = compiler.CreateScriptObject (bytecode, securityDomain);
}
return result;
}
internal NodeFactory(Parser parser)
{
this.parser = parser;
}