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Factored out the GetSourceLocation and Transcient methods.

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arookas 2015-12-07 10:18:37 -05:00
parent 2c61c67f98
commit cd8f699656
1 changed files with 15 additions and 46 deletions
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61
parser.cs
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@ -48,20 +48,23 @@ namespace arookas
}
}
// transcience
switch ((__sunConstants)node.Id)
if (ast.Count == 1)
{
case __sunConstants.STATEMENT:
case __sunConstants.COMPOUND_STATEMENT:
case __sunConstants.COMPOUND_STATEMENT_ITEM:
case __sunConstants.ASSIGNMENT_OPERATOR:
case __sunConstants.BINARY_OPERATOR:
case __sunConstants.UNARY_OPERATOR:
case __sunConstants.TERM:
case __sunConstants.PARAMETER:
case __sunConstants.ARGUMENT_LIST:
case __sunConstants.ARGUMENT:
switch (GetId(node))
{
return Transcient(ast);
case __sunConstants.STATEMENT:
case __sunConstants.COMPOUND_STATEMENT:
case __sunConstants.COMPOUND_STATEMENT_ITEM:
case __sunConstants.ASSIGNMENT_OPERATOR:
case __sunConstants.BINARY_OPERATOR:
case __sunConstants.UNARY_OPERATOR:
case __sunConstants.TERM:
case __sunConstants.PARAMETER:
case __sunConstants.ARGUMENT_LIST:
case __sunConstants.ARGUMENT:
{
return ast[0];
}
}
}
return ast;
@ -275,40 +278,6 @@ namespace arookas
// emergency fallback
return null;
}
static sunSourceLocation GetSourceLocation(string file, Node node)
{
if (file == null)
{
throw new ArgumentNullException("file");
}
if (node == null)
{
throw new ArgumentNullException("node");
}
if (node is Production)
{
var production = node as Production;
if (production.Count > 0)
{
return GetSourceLocation(file, production[0]);
}
throw new ArgumentException("node is a child-less production.", "node");
}
else if (node is Token)
{
var token = node as Token;
return new sunSourceLocation(file, token.StartLine, token.StartColumn);
}
throw new ArgumentException("node is an unsupported type.", "node");
}
static sunNode Transcient(sunNode node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
return node.Count == 1 ? node[0] : node;
}
static __sunConstants GetId(Node node)
{
return (__sunConstants)node.Id;