private Node ParseLogicalOr()
{
var lNode = this.ParseLogicalXor();
while (this.AreMoreTokens)
{
if (this.currentToken.Equals(TokenType.Symbol, "|"))
{
this.ReadNextToken();
lNode = new LogicalOrNode(lNode, this.ParseLogicalXor());
}
else
{
break;
}
}
return(lNode);
}
private Node ParseLogicalOr()
{
var lNode = this.ParseLogicalXor();
while (this.AreMoreTokens)
{
if (this.currentToken.Equals(TokenType.Symbol, "|"))
{
this.ReadNextToken();
lNode = new LogicalOrNode(lNode, this.ParseLogicalXor());
}
else
{
break;
}
}
return lNode;
}
public BinaryExpressionNode ParseBinaryExpresssion(Token operatorToken, AstNode leftOperand, AstNode rightOperand)
{
BinaryExpressionNode expression = null;
switch (operatorToken.Type)
{
case TokenType.Plus:
expression = new AdditionNode(operatorToken.SourceLine);
break;
case TokenType.Minus:
expression = new SubstractionNode(operatorToken.SourceLine);
break;
case TokenType.Asterisk:
expression = new MultiplicationNode(operatorToken.SourceLine);
break;
case TokenType.Slash:
expression = new DivisionNode(operatorToken.SourceLine);
break;
case TokenType.Equals:
expression = new EqualsComparisonNode(operatorToken.SourceLine);
break;
case TokenType.NotEquals:
expression = new NotEqualsComparisonNode(operatorToken.SourceLine);
break;
case TokenType.Less:
expression = new LessComparisonNode(operatorToken.SourceLine);
break;
case TokenType.EqualsOrLess:
expression = new EqualsOrLessComparisonNode(operatorToken.SourceLine);
break;
case TokenType.Greater:
expression = new GreaterComparisonNode(operatorToken.SourceLine);
break;
case TokenType.EqualsOrGreater:
expression = new EqualsOrGreaterComparisonNode(operatorToken.SourceLine);
break;
case TokenType.And:
expression = new LogicalAndNode(operatorToken.SourceLine);
break;
case TokenType.Or:
expression = new LogicalOrNode(operatorToken.SourceLine);
break;
default:
throw new CompilerException($"`{MethodBase.GetCurrentMethod().Name}` called with a bad token. Expected a binary operator, token has type `{operatorToken.Type}` instead.");
}
expression.LeftOperand = leftOperand;
expression.RightOperand = rightOperand;
return(expression);
}
// $ANTLR start "logicalORExpression"
// JavaScript.g:251:1: logicalORExpression : logicalANDExpression ( ( LT )* ( '||' ( LT )* n= logicalANDExpression ) )* ;
public JavaScriptParser.logicalORExpression_return logicalORExpression() // throws RecognitionException [1]
{
JavaScriptParser.logicalORExpression_return retval = new JavaScriptParser.logicalORExpression_return();
retval.Start = input.LT(1);
object root_0 = null;
IToken LT288 = null;
IToken string_literal289 = null;
IToken LT290 = null;
JavaScriptParser.logicalANDExpression_return n = default(JavaScriptParser.logicalANDExpression_return);
JavaScriptParser.logicalANDExpression_return logicalANDExpression287 = default(JavaScriptParser.logicalANDExpression_return);
object LT288_tree=null;
object string_literal289_tree=null;
object LT290_tree=null;
try
{
// JavaScript.g:252:2: ( logicalANDExpression ( ( LT )* ( '||' ( LT )* n= logicalANDExpression ) )* )
// JavaScript.g:252:4: logicalANDExpression ( ( LT )* ( '||' ( LT )* n= logicalANDExpression ) )*
{
root_0 = (object)adaptor.GetNilNode();
PushFollow(FOLLOW_logicalANDExpression_in_logicalORExpression2221);
logicalANDExpression287 = logicalANDExpression();
state.followingStackPointer--;
if (state.failed) return retval;
if ( state.backtracking == 0 ) adaptor.AddChild(root_0, logicalANDExpression287.Tree);
// JavaScript.g:252:25: ( ( LT )* ( '||' ( LT )* n= logicalANDExpression ) )*
do
{
int alt150 = 2;
alt150 = dfa150.Predict(input);
switch (alt150)
{
case 1 :
// JavaScript.g:252:26: ( LT )* ( '||' ( LT )* n= logicalANDExpression )
{
// JavaScript.g:252:28: ( LT )*
do
{
int alt148 = 2;
int LA148_0 = input.LA(1);
if ( (LA148_0 == LT) )
{
alt148 = 1;
}
switch (alt148)
{
case 1 :
// JavaScript.g:252:28: LT
{
LT288=(IToken)Match(input,LT,FOLLOW_LT_in_logicalORExpression2224); if (state.failed) return retval;
}
break;
default:
goto loop148;
}
} while (true);
loop148:
; // Stops C# compiler whining that label 'loop148' has no statements
// JavaScript.g:252:31: ( '||' ( LT )* n= logicalANDExpression )
// JavaScript.g:252:33: '||' ( LT )* n= logicalANDExpression
{
string_literal289=(IToken)Match(input,82,FOLLOW_82_in_logicalORExpression2230); if (state.failed) return retval;
if ( state.backtracking == 0 )
{string_literal289_tree = new LogicalOrNode(string_literal289) ;
root_0 = (object)adaptor.BecomeRoot(string_literal289_tree, root_0);
}
// JavaScript.g:252:56: ( LT )*
do
{
int alt149 = 2;
int LA149_0 = input.LA(1);
if ( (LA149_0 == LT) )
{
alt149 = 1;
}
switch (alt149)
{
case 1 :
// JavaScript.g:252:56: LT
{
LT290=(IToken)Match(input,LT,FOLLOW_LT_in_logicalORExpression2236); if (state.failed) return retval;
}
break;
default:
goto loop149;
}
} while (true);
loop149:
; // Stops C# compiler whining that label 'loop149' has no statements
PushFollow(FOLLOW_logicalANDExpression_in_logicalORExpression2242);
n = logicalANDExpression();
state.followingStackPointer--;
if (state.failed) return retval;
if ( state.backtracking == 0 ) adaptor.AddChild(root_0, n.Tree);
}
}
break;
default:
goto loop150;
}
} while (true);
loop150:
; // Stops C# compiler whining that label 'loop150' has no statements
}
retval.Stop = input.LT(-1);
if ( (state.backtracking==0) )
{ retval.Tree = (object)adaptor.RulePostProcessing(root_0);
adaptor.SetTokenBoundaries(retval.Tree, (IToken) retval.Start, (IToken) retval.Stop);}
}
catch (RecognitionException re)
{
ReportError(re);
Recover(input,re);
// Conversion of the second argument necessary, but harmless
retval.Tree = (object)adaptor.ErrorNode(input, (IToken) retval.Start, input.LT(-1), re);
}
finally
{
}
return retval;
}
