Module libslide::partial_evaluator::flatten

This module tries to flatten expressions as far as possible without the intervention of more complex evaluation rules. Flattening might be used as a "first pass" to normalize an expression, or by a more complex rule for the same reason.

Examples

Targets of this module

1 + 2 + 3 -> 6
1 - 5x / x -> -4

Non targets of this module

x^2 + 4x + 4 -> (x + 2)^2

Functions

flatten_add_or_sub	Flattens an addition or subtraction, folding constants and like terms as far as possible. The flattened expression is always normalized to an addition.
flatten_expr	Attempts to flatten an expression, folding constant expressions and like terms.
flatten_mul_or_div	Flattens a multiplication or division, folding constants and like terms as far as possible. The flattened expression is always normalized to a multiplication.
unwrap_expr	Unwraps an expression in parentheses/brackets, or returns the original expression if it cannot be unwrapped.