public static void FindExpression(PythonAst ast, SourceLocation position, FindExpressionOptions options, out Node expression, out Node statement, out ScopeStatement scope)
{
expression = null;
statement = null;
scope = null;
if (ast == null)
{
return;
}
var finder = new ExpressionFinder(ast, options);
var index = ast.LocationToIndex(position);
finder.Get(index, index, out expression, out statement, out scope);
var col = position.Column;
while (CanBackUp(ast, expression, statement, scope, col))
{
col -= 1;
index -= 1;
finder.Get(index, index, out expression, out statement, out scope);
}
expression = expression ?? (statement as ExpressionStatement)?.Expression;
}
public static Expression FindExpression(this PythonAst ast, SourceLocation location, FindExpressionOptions options) => new ExpressionFinder(ast, options).GetExpression(location) as Expression;
public static Expression FindExpression(this PythonAst ast, int index, FindExpressionOptions options) => new ExpressionFinder(ast, options).GetExpression(index) as Expression;