parsing package

bast module

Brian AST representation

This is a standard Python AST representation with additional information added.

Exported members: brian_ast, BrianASTRenderer, dtype_hierarchy

Classes

BrianASTRenderer(variables[, copy_variables])

This class is modelled after NodeRenderer - see there for details.

Functions

brian_ast(expr, variables)

Returns an AST tree representation with additional information

brian_dtype_from_dtype(dtype)

Returns ‘boolean’, ‘integer’ or ‘float’

brian_dtype_from_value(value)

Returns ‘boolean’, ‘integer’ or ‘float’

is_boolean(value)

is_boolean_dtype(obj)

is_float(value)

is_float_dtype(obj)

is_integer(value)

is_integer_dtype(obj)

dependencies module

Exported members: abstract_code_dependencies

Functions

abstract_code_dependencies(code[, …])

Analyses identifiers used in abstract code blocks

get_read_write_funcs(parsed_code)

expressions module

AST parsing based analysis of expressions

Exported members: parse_expression_dimensions

Functions

is_boolean_expression(expr, variables)

Determines if an expression is of boolean type or not

parse_expression_dimensions(expr, variables)

Returns the unit value of an expression, and checks its validity

functions module

Exported members: AbstractCodeFunction, abstract_code_from_function, extract_abstract_code_functions, substitute_abstract_code_functions

Classes

AbstractCodeFunction(name, args, code, …)

The information defining an abstract code function

FunctionRewriter(func[, numcalls])

Inlines a function call using temporary variables

VarRewriter(pre)

Rewrites all variable names in names by prepending pre

Functions

abstract_code_from_function(func)

Converts the body of the function to abstract code

extract_abstract_code_functions(code)

Returns a set of abstract code functions from function definitions.

substitute_abstract_code_functions(code, funcs)

Performs inline substitution of all the functions in the code

rendering module

Exported members: NodeRenderer, NumpyNodeRenderer, CPPNodeRenderer, SympyNodeRenderer, get_node_value

Classes

CPPNodeRenderer([auto_vectorise])

Methods

NodeRenderer([auto_vectorise])

Methods

NumpyNodeRenderer([auto_vectorise])

Methods

SympyNodeRenderer([auto_vectorise])

Methods

Functions

get_node_value(node)

Helper function to mask differences between Python versions

statements module

Functions

parse_statement(code)

Parses a single line of code into “var op expr”.

sympytools module

Utility functions for parsing expressions and statements.

Classes

CustomSympyPrinter([settings])

Printer that overrides the printing of some basic sympy objects.

Functions

check_expression_for_multiple_stateful_functions(…)

expression_complexity(expr[, complexity])

Returns the complexity of an expression (either string or sympy)

str_to_sympy(expr[, variables])

Parses a string into a sympy expression.

sympy_to_str(sympy_expr)

Converts a sympy expression into a string.

Objects

PRINTER

Printer that overrides the printing of some basic sympy objects.