public void ParseVarBindAssignmentTest()
{
//Create parser
StatementParser statementParser = new StatementParser(Init("var1 = \"test\";"));
VarBindAssignment parsedVarAssignment = statementParser.ParseVarBindAssignment();
//Test VarBindAssignment
Assert.AreEqual("var1", parsedVarAssignment.GetIdentifier());
Assert.AreEqual(typeof(TextExpression), parsedVarAssignment.GetExpression().GetType());
Assert.AreEqual("\"test\"", parsedVarAssignment.GetExpression().ToString());
}
/// <summary>
/// Parser for VarBindAssignment
/// </summary>
/// <returns>Parsed VarBindAssignment</returns>
public VarBindAssignment ParseVarBindAssignment()
{
VarBindAssignment varBindAssignment = new VarBindAssignment();
//Parse identifier
CurrentToken = TokenStream.NextToken();
varBindAssignment.SetIdentifier(CurrentToken.GetValue().ToString());
//Skip = token
NextToken("=", "identifier = expression;", '=');
//Parse expression
varBindAssignment.SetExpression(expressionParser.ParseExpression());
//Skip ; token
NextToken(";", "identifier = expression;", ';');
return(varBindAssignment);
}
/// <summary>
/// Interpret VarBindAssignment
/// </summary>
/// <param name="assignment">VarBindAssignment to interpret</param>
public override void Visit(VarBindAssignment assignment)
{ //Add variable to SymbolTable
SymbolTable.AddVariableDefinition(assignment.GetIdentifier(), assignment.GetExpression());
}
public virtual void Visit(VarBindAssignment assignment)
{
VisitSubNodes(assignment);
}
/// <summary>
/// Visit VarBindAssignment
/// </summary>
/// <param name="assignment">VarBindAssignment to check</param>
public override void Visit(VarBindAssignment assignment)
{
assignment.GetExpression().AcceptVisitor(this);
SymbolTable.AddVariableDefinition(assignment.GetIdentifier(), assignment.GetExpression());
}