public IASTNode HandleIdentifierError(IToken token, RecognitionException ex)
{
if (token is HqlToken)
{
HqlToken hqlToken = (HqlToken)token;
// ... and the token could be an identifer and the error is
// a mismatched token error ...
if (hqlToken.PossibleId && (ex is MismatchedTokenException))
{
MismatchedTokenException mte = (MismatchedTokenException)ex;
// ... and the expected token type was an identifier, then:
if (mte.Expecting == IDENT)
{
// Use the token as an identifier.
_parseErrorHandler.ReportWarning("Keyword '"
+ token.Text
+ "' is being interpreted as an identifier due to: " + mte.Message);
// Add the token to the AST.
token.Type = WEIRD_IDENT;
input.Consume();
return((IASTNode)adaptor.Create(token));
}
}
}
// Otherwise, handle the error normally.
ReflectHelper.PreserveStackTrace(ex);
throw ex;
}
public override object Create(IToken payload)
{
GrammarAST t = new GrammarAST(payload);
if (_outer != null)
{
t.enclosingRuleName = _outer.currentRuleName;
}
return(t);
}
public override object ErrorNode(ITokenStream input, IToken start, IToken stop, RecognitionException e)
{
GrammarAST t = new GrammarASTErrorNode(input, start, stop, e);
if (_outer != null)
{
t.enclosingRuleName = _outer.currentRuleName;
}
return(t);
}
public IASTNode ProcessMemberOf(IToken n, IASTNode p, IASTNode root)
{
ASTFactory factory = new ASTFactory(adaptor);
return(factory.CreateNode(n == null ? IN : NOT_IN,
n == null ? "in" : "not in",
root.IsNil && root.ChildCount == 1 ? root.GetChild(0) : root,
factory.CreateNode(IN_LIST, "inList",
CreateSubquery(p))));
}
public GrammarASTErrorNode(ITokenStream input, IToken start, IToken stop,
RecognitionException e)
{
//Console.Out.WriteLine( "start: " + start + ", stop: " + stop );
if (stop == null ||
(stop.TokenIndex < start.TokenIndex &&
stop.Type != TokenTypes.EndOfFile))
{
// sometimes resync does not consume a token (when LT(1) is
// in follow set. So, stop will be 1 to left to start. adjust.
// Also handle case where start is the first token and no token
// is consumed during recovery; LT(-1) will return null.
stop = start;
}
this.input = input;
this.start = start;
this.stop = stop;
this.trappedException = e;
}
public override void ReportError(RecognitionException ex)
{
//Token token = null;
//try
//{
// token = LT( 1 );
//}
//catch ( TokenStreamException tse )
//{
// ErrorManager.internalError( "can't get token???", tse );
//}
IToken token = ex.Token;
ErrorManager.SyntaxError(
ErrorManager.MSG_SYNTAX_ERROR,
Grammar,
token,
"antlr: " + ex.ToString(),
ex);
}
public override Antlr4.StringTemplate.Compiler.CompiledTemplate Compile(string srcName, string name, List <Antlr4.StringTemplate.Compiler.FormalArgument> args, string template, Antlr.Runtime.IToken templateToken)
{
return(base.Compile(srcName, name, args, template, templateToken));
}
public override object ErrorNode( ITokenStream input, IToken start, IToken stop, RecognitionException e )
{
GrammarAST t = new GrammarASTErrorNode( input, start, stop, e );
if ( _outer != null )
t.enclosingRuleName = _outer.currentRuleName;
return t;
}
public override void DefineTemplateOrRegion(string fullyQualifiedTemplateName, string regionSurroundingTemplateName, Antlr.Runtime.IToken templateToken, string template, Antlr.Runtime.IToken nameToken, List <Antlr4.StringTemplate.Compiler.FormalArgument> args)
{
base.DefineTemplateOrRegion(fullyQualifiedTemplateName, regionSurroundingTemplateName, templateToken, template, nameToken, args);
}
public GrammarASTErrorNode( ITokenStream input, IToken start, IToken stop,
RecognitionException e )
: base(stop)
{
//Console.Out.WriteLine( "start: " + start + ", stop: " + stop );
if ( stop == null ||
( stop.TokenIndex < start.TokenIndex &&
stop.Type != TokenTypes.EndOfFile ) )
{
// sometimes resync does not consume a token (when LT(1) is
// in follow set. So, stop will be 1 to left to start. adjust.
// Also handle case where start is the first token and no token
// is consumed during recovery; LT(-1) will return null.
stop = start;
}
this.input = input;
this.start = start;
this.stop = stop;
this.trappedException = e;
}
public override object Create( IToken payload )
{
GrammarAST t = new GrammarAST( payload );
if ( _outer != null )
t.enclosingRuleName = _outer.currentRuleName;
return t;
}
public override Antlr4.StringTemplate.Compiler.CompiledTemplate DefineTemplateAlias(Antlr.Runtime.IToken aliasT, Antlr.Runtime.IToken targetT)
{
return(base.DefineTemplateAlias(aliasT, targetT));
}
public GrammarToken(Grammar g, IToken oldToken)
{
this.g = g;
_token = new CommonToken(oldToken);
}
public IASTNode HandleIdentifierError(IToken token, RecognitionException ex)
{
if (token is HqlToken)
{
HqlToken hqlToken = (HqlToken)token;
// ... and the token could be an identifer and the error is
// a mismatched token error ...
if (hqlToken.PossibleId && (ex is MismatchedTokenException))
{
MismatchedTokenException mte = (MismatchedTokenException)ex;
// ... and the expected token type was an identifier, then:
if (mte.Expecting == IDENT)
{
// Use the token as an identifier.
_parseErrorHandler.ReportWarning("Keyword '"
+ token.Text
+ "' is being interpreted as an identifier due to: " + mte.Message);
// Add the token to the AST.
token.Type = WEIRD_IDENT;
input.Consume();
return (IASTNode) adaptor.Create(token);
}
}
}
// Otherwise, handle the error normally.
throw ex;
}
public GrammarToken(Grammar g, IToken oldToken)
{
this.g = g;
_token = new CommonToken(oldToken);
}
public override void SetDelimiters(Antlr.Runtime.IToken openDelimiter, Antlr.Runtime.IToken closeDelimiter)
{
base.SetDelimiters(openDelimiter, closeDelimiter);
}
public override void RawDefineTemplate(string name, Antlr4.StringTemplate.Compiler.CompiledTemplate code, Antlr.Runtime.IToken defT)
{
base.RawDefineTemplate(name, code, defT);
}
public override void ImportTemplates(Antlr.Runtime.IToken fileNameToken)
{
base.ImportTemplates(fileNameToken);
}
private void HandleDelegateGrammar(IToken grammarName, string label)
{
Grammar.ImportGrammar(grammarName, label);
}
public override Template CreateSingleton(Antlr.Runtime.IToken templateToken)
{
return(base.CreateSingleton(templateToken));
}
public override Antlr4.StringTemplate.Compiler.CompiledTemplate DefineRegion(string enclosingTemplateName, Antlr.Runtime.IToken regionT, string template, Antlr.Runtime.IToken templateToken)
{
return(base.DefineRegion(enclosingTemplateName, regionT, template, templateToken));
}
public IASTNode ProcessMemberOf(IToken n, IASTNode p, IASTNode root)
{
ASTFactory factory = new ASTFactory(adaptor);
return factory.CreateNode(n == null ? IN : NOT_IN,
n == null ? "in" : "not in",
root.IsNil && root.ChildCount == 1 ? root.GetChild(0) : root,
factory.CreateNode(IN_LIST, "inList",
CreateSubquery(p)));
}
public override Antlr4.StringTemplate.Compiler.CompiledTemplate DefineTemplate(string fullyQualifiedTemplateName, Antlr.Runtime.IToken nameT, List <Antlr4.StringTemplate.Compiler.FormalArgument> args, string template, Antlr.Runtime.IToken templateToken)
{
return(base.DefineTemplate(fullyQualifiedTemplateName, nameT, args, template, templateToken));
}
/// <summary>
/// Override of base to track previous on channel token.
/// This token is needed as input to decide whether regular expression or division expression recognition is enabled.
/// </summary>
public override IToken NextToken()
{
IToken result = base.NextToken();
if (result.Channel == Token.DEFAULT_CHANNEL)
{
last = result;
}
return result;
}
private void HandleDelegateGrammar(IToken grammarName, string label)
{
Grammar.ImportGrammar(grammarName, label);
}
