Commit Graph

9 Commits

Author SHA1 Message Date
Sam McCall d9d554a3f4 [pseudo] Add ambiguity & unparseability metrics to -print-statistics
These can be used to quantify parsing improvements from a change.

Differential Revision: https://reviews.llvm.org/D130199
2022-07-22 10:35:06 +02:00
Haojian Wu d489b3807f [pseudo] Implement a guard to determine function declarator.
This eliminates some simple-declaration/function-definition false
parses.

- implement a function to determine whether a declarator ForestNode is a
  function declarator;
- extend the standard declarator to two guarded function-declarator and
  non-function-declarator nonterminals;

Differential Revision: https://reviews.llvm.org/D129222
2022-07-19 09:44:45 +02:00
Sam McCall 9b6bb12b85 [pseudo] Add ForestNode descendants iterator, print ambiguous/opaque node stats.
Differential Revision: https://reviews.llvm.org/D128930
2022-06-30 21:20:55 +02:00
Sam McCall bc5e7ced1c [pseudo] Fix bugs/inconsistencies in forest dump.
- when printing a shared node for the second time, don't print its children
  (This keeps output proportional to the size of the structure)
- when printing a shared node for the second time, print its type only, not rule
  (for consistency with above: don't dump details of nodes twice)
- don't abbreviate shared nodes, to ensure we can prune the tree there

Differential Revision: https://reviews.llvm.org/D128805
2022-06-29 22:56:26 +02:00
Haojian Wu 28eeea1e27 [pseudo]Pull out the operator< test, NFC
Fix the review comment in https://reviews.llvm.org/D125479.
2022-06-07 11:00:08 +02:00
Haojian Wu c4546091ed [pseudo] Use a real language option in the parser.
Differential Revision: https://reviews.llvm.org/D124831
2022-05-03 22:24:56 +02:00
Haojian Wu 9f38da258e [pseudo] Implement the GLR parsing algorithm.
This patch implements a standard GLR parsing algorithm, the
core piece of the pseudoparser.

- it parses preprocessed C++ code, currently it supports correct code
  only and parse them as a translation-unit;
- it produces a forest which stores all possible trees in an efficient
  manner (only a single node being build for per (SymbolID, Token Range));
  no disambiguation yet;

Reland with a fix for g++'s -fpermissive error on previous declaration `GSS& GSS;`.

Differential Revision: https://reviews.llvm.org/D121150
2022-05-03 20:25:23 +02:00
Haojian Wu 860eabb395 Revert "[pseudo] Implement the GLR parsing algorithm."
This breaks some buildbots (on the declaration GSS& GSS), will fix it
later.

This reverts commit eac22d0754.
2022-05-03 15:54:10 +02:00
Sam McCall eac22d0754 [pseudo] Implement the GLR parsing algorithm.
This patch implements a standard GLR parsing algorithm, the
core piece of the pseudoparser.

- it parses preprocessed C++ code, currently it supports correct code
  only and parse them as a translation-unit;
- it produces a forest which stores all possible trees in an efficient
  manner (only a single node being build for per (SymbolID, Token Range));
  no disambiguation yet;

Differential Revision: https://reviews.llvm.org/D121150
2022-05-03 15:42:07 +02:00