brian_ast function
(Shortest import: from brian2.parsing.bast import brian_ast)
- brian2.parsing.bast.brian_ast(expr, variables)[source]
Returns an AST tree representation with additional information
Each node will be a standard Python
ast
node with the following additional attributes:dtype
One of
'boolean'
,'integer'
or'float'
, referring to the data type of the value of this node.scalar
Either
True
orFalse
if the node uses any vector-valued variables.complexity
An integer representation of the computational complexity of the node. This is a very rough representation used for things like
2*(x+y)
is less complex than2*x+2*y
andexp(x)
is more complex than2*x
but shouldn’t be relied on for fine distinctions between expressions.