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Verilog-printing

Vl-expr-precedence

Returns a symbol representing the operation that's being done at the top level.

Signature
(vl-expr-precedence x) → precedence
Arguments: x — Guard (vl-expr-p x).
Returns: precedence — Type (posp precedence).

Definitions and Theorems

Function: vl-expr-precedence

(defun vl-expr-precedence (x)
  (declare (xargs :guard (vl-expr-p x)))
  (let ((__function__ 'vl-expr-precedence))
    (declare (ignorable __function__))
    (vl-expr-case x
                  :vl-unary 150
                  :vl-binary (vl-binaryop-precedence x.op)
                  :vl-qmark 30
                  :otherwise 200)))

Theorem: posp-of-vl-expr-precedence

(defthm posp-of-vl-expr-precedence
  (b* ((precedence (vl-expr-precedence x)))
    (posp precedence))
  :rule-classes :type-prescription)

Theorem: vl-expr-precedence-of-vl-expr-fix-x

(defthm vl-expr-precedence-of-vl-expr-fix-x
  (equal (vl-expr-precedence (vl-expr-fix x))
         (vl-expr-precedence x)))

Theorem: vl-expr-precedence-vl-expr-equiv-congruence-on-x

(defthm vl-expr-precedence-vl-expr-equiv-congruence-on-x
  (implies (vl-expr-equiv x x-equiv)
           (equal (vl-expr-precedence x)
                  (vl-expr-precedence x-equiv)))
  :rule-classes :congruence)