AMPLRepnVisitor

(class from pyomo.repn.ampl)

class pyomo.repn.ampl.AMPLRepnVisitor(subexpression_cache, external_functions, var_map, used_named_expressions, symbolic_solver_labels, use_named_exprs, sorter)

Bases: StreamBasedExpressionVisitor

__init__(subexpression_cache, external_functions, var_map, used_named_expressions, symbolic_solver_labels, use_named_exprs, sorter)

Methods

__init__(subexpression_cache, ...)
beforeChild(node, child, child_idx)
cache_fixed_var(_id, child)
check_constant(ans, obj)
enterNode(node)
exitNode(node, data)
finalizeResult(result)
initializeWalker(expr)
node_result_to_amplrepn(data)
walk_expression(expr)	Walk an expression, calling registered callbacks.
walk_expression_nonrecursive(expr)	Nonrecursively walk an expression, calling registered callbacks.

Attributes

client_methods

Member Documentation

walk_expression(expr)

Walk an expression, calling registered callbacks.

This is the standard interface for running the visitor. It defaults to using an efficient recursive implementation of the visitor, falling back on walk_expression_nonrecursive() if the recursion stack gets too deep.

walk_expression_nonrecursive(expr)

Nonrecursively walk an expression, calling registered callbacks.

This routine is safer than the recursive walkers for deep (or unbalanced) trees. It is, however, slightly slower than the recursive implementations.