//throws RecognitionException
public Object attribute(AST _t)
{
Object value=null;
antlr.stringtemplate.language.StringTemplateAST attribute_AST_in = (antlr.stringtemplate.language.StringTemplateAST)_t;
antlr.stringtemplate.language.StringTemplateAST prop = null;
antlr.stringtemplate.language.StringTemplateAST i3 = null;
antlr.stringtemplate.language.StringTemplateAST i = null;
antlr.stringtemplate.language.StringTemplateAST s = null;
antlr.stringtemplate.language.StringTemplateAST at = null;
Object obj = null;
String propName = null;
Object e = null;
try { // for error handling
if (null == _t)
_t = ASTNULL;
switch ( _t.Type )
{
case DOT:
{
AST __t33 = _t;
antlr.stringtemplate.language.StringTemplateAST tmp6_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,DOT);
_t = _t.getFirstChild();
obj=expr(_t);
_t = retTree_;
{
if (null == _t)
_t = ASTNULL;
switch ( _t.Type )
{
case ID:
{
prop = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ID);
_t = _t.getNextSibling();
propName = prop.getText();
break;
}
case VALUE:
{
AST __t35 = _t;
antlr.stringtemplate.language.StringTemplateAST tmp7_AST_in = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,VALUE);
_t = _t.getFirstChild();
e=expr(_t);
_t = retTree_;
_t = __t35;
_t = _t.getNextSibling();
if (e!=null) {propName=e.ToString();}
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
_t = __t33;
_t = _t.getNextSibling();
value = chunk.getObjectProperty(self,obj,propName);
break;
}
case ID:
{
i3 = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ID);
_t = _t.getNextSibling();
value=self.getAttribute(i3.getText());
break;
}
case INT:
{
i = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,INT);
_t = _t.getNextSibling();
value=Int32.Parse(i.getText());
break;
}
case STRING:
{
s = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,STRING);
_t = _t.getNextSibling();
value=s.getText();
break;
}
case ANONYMOUS_TEMPLATE:
{
at = (_t==ASTNULL) ? null : (antlr.stringtemplate.language.StringTemplateAST)_t;
match((AST)_t,ANONYMOUS_TEMPLATE);
_t = _t.getNextSibling();
value=at.getText();
if ( at.getText()!=null ) {
StringTemplate valueST =new StringTemplate(self.getGroup(), at.getText());
valueST.setEnclosingInstance(self);
valueST.setName("<anonymous template argument>");
value = valueST;
}
break;
}
default:
{
throw new NoViableAltException(_t);
}
}
}
catch (RecognitionException ex)
{
reportError(ex);
if (null != _t)
{
_t = _t.getNextSibling();
}
}
retTree_ = _t;
return value;
}
/// <summary>
/// Evaluate an argument list within the context of the enclosing
/// template but store the values in the context of self, the
/// new embedded template. For example, bold(item=item) means
/// that bold.item should get the value of enclosing.item.
/// </summary>
protected internal virtual void evaluateArguments(StringTemplate self)
{
StringTemplateAST argumentsAST = self.getArgumentsAST();
if (argumentsAST == null || argumentsAST.getFirstChild() == null)
{
// return immediately if missing tree or no actual args
return ;
}
// Evaluate args in the context of the enclosing template, but we
// need the predefined args like 'it', 'attr', and 'i' to be
// available as well so we put a dummy ST between the enclosing
// context and the embedded context. The dummy has the predefined
// context as does the embedded.
StringTemplate enclosing = self.getEnclosingInstance();
StringTemplate argContextST = new StringTemplate(self.getGroup(), "");
argContextST.setName("<invoke "+self.getName()+" arg context>");
argContextST.setEnclosingInstance(enclosing);
argContextST.setArgumentContext(self.getArgumentContext());
ActionEvaluator eval = new ActionEvaluator(argContextST, this, null);
try
{
// using any initial argument context (such as when obj is set),
// evaluate the arg list like bold(item=obj). Since we pass
// in any existing arg context, that context gets filled with
// new values. With bold(item=obj), context becomes:
// {[obj=...],[item=...]}.
IDictionary ac = eval.argList(argumentsAST, self, self.getArgumentContext());
self.setArgumentContext(ac);
}
catch (RecognitionException re)
{
self.error("can't evaluate tree: " + argumentsAST.ToStringList(), re);
}
}
