EvaluateFixedSubexpressionVisitor

(class from pyomo.core.expr.visitor)

class pyomo.core.expr.visitor.EvaluateFixedSubexpressionVisitor(descend_into_named_expressions=False, remove_named_expressions=False)

Bases: ExpressionReplacementVisitor

__init__(descend_into_named_expressions=False, remove_named_expressions=False)

Methods

__init__([descend_into_named_expressions, ...])
acceptChildResult(node, data, child_result, ...)
beforeChild(node, child, child_idx)
dfs_postorder_stack(expr)	DEPRECATED.
enterNode(node)
exitNode(node, data)
initializeWalker(expr)
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

dfs_postorder_stack(expr)

DEPRECATED.

Deprecated since version 6.2: ExpressionReplacementVisitor: this walker has been ported to derive from StreamBasedExpressionVisitor. dfs_postorder_stack() has been replaced with walk_expression()

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.