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Code Issues Pull Requests 1 Releases Wiki Activity

Use as+nullcheck instead of is+cast

This commit is contained in:
Sam Harwell 2013-02-27 19:50:15 -06:00
parent db7d3351f9
commit 5b3767003a
1 changed files with 4 additions and 2 deletions
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6
tool/resources/org/antlr/v4/tool/templates/codegen/CSharp/CSharp.stg
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@ -753,13 +753,15 @@ public partial class <struct.name> : <currentRule.name; format="cap">Context {
ListenerDispatchMethod(method) ::= <<
public override void <if(method.isEnter)>Enter<else>Exit<endif>Rule(IParseTreeListener listener) {
if ( listener is I<parser.grammarName>Listener ) ((I<parser.grammarName>Listener)listener).<if(method.isEnter)>Enter<else>Exit<endif><struct.derivedFromName; format="cap">(this);
I<parser.grammarName>Listener typedListener = listener as I<parser.grammarName>Listener;
if (typedListener != null) typedListener.<if(method.isEnter)>Enter<else>Exit<endif><struct.derivedFromName; format="cap">(this);
}
>>
VisitorDispatchMethod(method) ::= <<
public override TResult Accept\<TResult>(IParseTreeVisitor\<TResult> visitor) {
if ( visitor is I<parser.grammarName>Visitor\<TResult> ) return ((I<parser.grammarName>Visitor\<TResult>)visitor).Visit<struct.derivedFromName; format="cap">(this);
I<parser.grammarName>Visitor\<TResult> typedVisitor = visitor as I<parser.grammarName>Visitor\<TResult>;
if (typedVisitor != null) return typedVisitor.Visit<struct.derivedFromName; format="cap">(this);
else return visitor.VisitChildren(this);
}
>>