public static TryExpression Create(
AphidExpressionContext context_aphidExpressionContext,
List <AphidExpression> tryBody_list,
IdentifierExpression catchArg_identifierExpression,
List <AphidExpression> catchBody_list1,
List <AphidExpression> finallyBody_list2,
int value_i,
int value_i1
)
{
TryExpression tryExpression
= new TryExpression(context_aphidExpressionContext, tryBody_list,
catchArg_identifierExpression, catchBody_list1, finallyBody_list2);
((AphidExpression)tryExpression).Index = value_i;
((AphidExpression)tryExpression).Length = value_i1;
return(tryExpression);
// TODO: Edit factory method of TryExpression
// This method should be able to configure the object in all possible ways.
// Add as many parameters as needed,
// and assign their values to each field by using the API.
}
private Expression ParseTryExpression()
{
NextToken();
var tryExp = new TryExpression()
{
TryBody = ParseBlock()
};
switch (_currentToken.TokenType)
{
case AphidTokenType.catchKeyword:
NextToken();
Match(AphidTokenType.LeftParenthesis);
tryExp.CatchArg = ParseIdentifierExpression();
Match(AphidTokenType.RightParenthesis);
tryExp.CatchBody = ParseBlock();
if (_currentToken.TokenType == AphidTokenType.finallyKeyword)
{
NextToken();
tryExp.FinallyBody = ParseBlock();
}
break;
case AphidTokenType.finallyKeyword:
NextToken();
tryExp.FinallyBody = ParseBlock();
break;
default:
throw new AphidParserException(_currentToken);
}
return(tryExp);
}
private void InterpretFinallyBlock(TryExpression expression)
{
EnterChildScope();
Interpret(expression.FinallyBody, false);
LeaveChildScope(false);
}
private void InterpretCatchBlock(TryExpression expression, Exception e)
{
LeaveChildScope(true);
EnterChildScope();
_currentScope.Add(
expression.CatchArg.Identifier,
new AphidObject(e.Message));
Interpret(expression.CatchBody, false);
LeaveChildScope(true);
}
private void InterpretTryExpression(TryExpression expression)
{
if (expression.FinallyBody == null)
{
try
{
InterpretTryBlock(expression);
}
catch (Exception e)
{
InterpretCatchBlock(expression, e);
}
}
else if (expression.CatchBody != null)
{
try
{
InterpretTryBlock(expression);
}
catch (Exception e)
{
InterpretCatchBlock(expression, e);
}
finally
{
InterpretFinallyBlock(expression);
}
}
else
{
try
{
InterpretTryBlock(expression);
}
finally
{
InterpretFinallyBlock(expression);
}
}
}
private void InterpretTryBlock(TryExpression expression)
{
EnterChildScope();
Interpret(expression.TryBody, false);
LeaveChildScope(true);
}
private AphidExpression ParseTryExpression()
{
NextToken();
var tryExp = new TryExpression() { TryBody = ParseBlock() };
switch (_currentToken.TokenType)
{
case AphidTokenType.catchKeyword:
NextToken();
Match(AphidTokenType.LeftParenthesis);
tryExp.CatchArg = ParseIdentifierExpression();
Match(AphidTokenType.RightParenthesis);
tryExp.CatchBody = ParseBlock();
if (_currentToken.TokenType == AphidTokenType.finallyKeyword)
{
NextToken();
tryExp.FinallyBody = ParseBlock();
}
break;
case AphidTokenType.finallyKeyword:
NextToken();
tryExp.FinallyBody = ParseBlock();
break;
default:
throw new AphidParserException(_currentToken);
}
return tryExp;
}
