/// <summary>
/// Returns a version of this node type that represents its error state; in case of a syntax error
/// in the node that prevents the node from being even partially built.
/// </summary>
/// <param name="sourceCodeRange">The source code range of the error.</param>
/// <returns>A version of this node type in its undefined/error state.</returns>
public static LSLFunctionCallNode GetError(LSLSourceCodeRange sourceCodeRange)
{
return(new LSLFunctionCallNode(sourceCodeRange, Err.Err));
}
LSLReturnStatementNode GetError(LSLSourceCodeRange sourceRange)
{
return(new LSLReturnStatementNode(sourceRange, Err.Err));
}
private LSLReturnStatementNode(LSLSourceCodeRange sourceRange, Err err)
// ReSharper restore UnusedParameter.Local
{
SourceRange = sourceRange;
HasErrors = true;
}
/// <summary>
/// Returns a version of this node type that represents its error state; in case of a syntax error
/// in the node that prevents the node from being even partially built.
/// </summary>
/// <param name="sourceRange">The source code range of the error.</param>
/// <returns>A version of this node type in its undefined/error state.</returns>
public static LSLStringLiteralNode GetError(LSLSourceCodeRange sourceRange)
{
return(new LSLStringLiteralNode(sourceRange, Err.Err));
}
private LSLStringLiteralNode(LSLSourceCodeRange sourceRange, Err err)
: base(sourceRange, Err.Err)
// ReSharper restore UnusedParameter.Local
{
}
/// <summary>
/// Construct an <see cref="LSLVariableNode" /> that references a library constant.
/// </summary>
/// <param name="type">The constants type.</param>
/// <param name="constantName">The constants name.</param>
/// <param name="sourceRange">Optional source range for the area the reference exists in.</param>
/// <exception cref="ArgumentNullException"><paramref name="constantName" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentException">
/// <paramref name="type" /> is <see cref="LSLType.Void" />.
/// </exception>
/// <exception cref="LSLInvalidSymbolNameException"><paramref name="constantName" /> is contains characters that are invalid in an LSL ID token.</exception>
internal static LSLVariableNode CreateLibraryConstantReference(LSLType type, string constantName, LSLSourceCodeRange sourceRange = null)
{
if (constantName == null)
{
throw new ArgumentNullException("constantName");
}
if (type == LSLType.Void)
{
throw new ArgumentException(
typeof(LSLVariableNode).Name + ".CreateLibraryConstant: type cannot be LSLType.Void.", "type");
}
if (!LSLTokenTools.IDRegexAnchored.IsMatch(constantName))
{
throw new LSLInvalidSymbolNameException(
typeof(LSLVariableNode).Name + ".CreateLibraryConstant: name contains invalid ID characters.");
}
return(new LSLVariableNode
{
Name = constantName,
TypeName = type.ToLSLTypeName(),
Type = type,
ExpressionType = LSLExpressionType.LibraryConstant,
IsConstant = true,
SourceRange = sourceRange
});
}
private LSLVariableNode(LSLSourceCodeRange sourceRange, Err err)
// ReSharper restore UnusedParameter.Local
{
SourceRange = sourceRange;
HasErrors = true;
}
/// <summary>
/// Construct an <see cref="LSLVariableNode" /> that references a local parameter node.
/// </summary>
/// <param name="declarationNode">A parameter node that declares the parameter variable.</param>
/// <param name="sourceRange">Optional source range for the area the reference exists in.</param>
internal static LSLVariableNode CreateParameterReference(ILSLParameterNode declarationNode, LSLSourceCodeRange sourceRange = null)
{
return(new LSLVariableNode
{
Name = declarationNode.Name,
TypeName = declarationNode.Type.ToLSLTypeName(),
Type = declarationNode.Type,
ExpressionType = LSLExpressionType.ParameterVariable,
IsConstant = false,
SourceRange = sourceRange
});
}
/// <summary>
/// Construct an <see cref="LSLVariableNode" /> that references a local variable declaration node.
/// </summary>
/// <param name="declarationNode">A variable declaration node.</param>
/// <param name="variableName">The name of the local variable.</param>
/// <param name="type">The type of the local variable.</param>
/// <param name="sourceRange">Optional source range for the area the reference exists in.</param>
/// <returns>A new variable node representing a reference to <paramref name="declarationNode" />.</returns>
/// <exception cref="ArgumentNullException"><paramref name="declarationNode" /> is <c>null</c>.</exception>
/// <exception cref="ArgumentException">
/// <paramref name="type" /> is <see cref="LSLType.Void" /> or
/// </exception>
/// <exception cref="LSLInvalidSymbolNameException"><paramref name="variableName" /> contains characters that are not valid in an LSL ID token.</exception>
internal static LSLVariableNode CreateLocalVarReference(LSLType type, string variableName,
ILSLVariableDeclarationNode declarationNode, LSLSourceCodeRange sourceRange = null)
{
if (declarationNode == null)
{
throw new ArgumentNullException("declarationNode");
}
if (type == LSLType.Void)
{
throw new ArgumentException("local variable type cannot be LSLType.Void", "type");
}
if (!LSLTokenTools.IDRegexAnchored.IsMatch(variableName))
{
throw new LSLInvalidSymbolNameException(
"variableName provided contained characters not allowed in an LSL ID token.");
}
return(new LSLVariableNode
{
Name = variableName,
TypeName = type.ToLSLTypeName(),
Type = type,
IsConstant = false,
Declaration = declarationNode,
ExpressionType = LSLExpressionType.LocalVariable,
SourceRange = sourceRange
});
}
LSLVariableNode GetError(LSLSourceCodeRange sourceRange)
{
return(new LSLVariableNode(sourceRange, Err.Err));
}
/// <summary>
/// Add an <see cref="LSLSourceCodeRange" /> for a comma in the expression list.
/// This method does NOT clone <paramref name="sourceRange" /> for you.
/// </summary>
/// <param name="sourceRange"></param>
internal void AddCommaSourceRange(LSLSourceCodeRange sourceRange)
{
_sourceRangeCommaList.Add(sourceRange);
}
/// <summary>
/// Returns a version of this node type that represents its error state; in case of a syntax error
/// in the node that prevents the node from being even partially built.
/// </summary>
/// <param name="sourceRange">The source code range of the error.</param>
/// <returns>A version of this node type in its undefined/error state.</returns>
public static LSLExpressionListNode GetError(LSLSourceCodeRange sourceRange)
{
return(new LSLExpressionListNode(sourceRange, Err.Err));
}
