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Parser-interface

Parse-from-codepoints+

Parse Unicode code points into a CST.

Signature
(parse-from-codepoints+ codepoints) → (mv tree lexemes)
Arguments: codepoints — Guard (nat-listp codepoints).
Returns: tree — Type (abnf::tree-resultp tree).; lexemes — Type (abnf::tree-listp lexemes).

Lexes, tokenizes, and parses a Leo source file expressed as a list of Unicode code points. Returns a file CST, and the full list of lexemes, including comments and whitespace.

If any step fails, returns a reserr. The parse consumes all the bytes or a reserr is returned.

Definitions and Theorems

Function: parse-from-codepoints+

(defun parse-from-codepoints+ (codepoints)
  (declare (xargs :guard (nat-listp codepoints)))
  (let ((__function__ 'parse-from-codepoints+))
    (declare (ignorable __function__))
    (b* ((lexemes-or-err (lexemize-leo codepoints)))
      (lexemes-to-cst+ "file" lexemes-or-err))))

Theorem: tree-resultp-of-parse-from-codepoints+.tree

(defthm tree-resultp-of-parse-from-codepoints+.tree
  (b* (((mv ?tree ?lexemes)
        (parse-from-codepoints+ codepoints)))
    (abnf::tree-resultp tree))
  :rule-classes :rewrite)

Theorem: tree-listp-of-parse-from-codepoints+.lexemes

(defthm tree-listp-of-parse-from-codepoints+.lexemes
  (b* (((mv ?tree ?lexemes)
        (parse-from-codepoints+ codepoints)))
    (abnf::tree-listp lexemes))
  :rule-classes :rewrite)