upstream/mercurial-mirror Files · rust/hg-core/src/re2/rust_re2.cpp

mergestate: determine if active without looking for state files on disk...

mergestate: determine if active without looking for state files on disk I couldn't think of a reason that we need to check state files on disk to determine if a merge is active. I could imagine them being for there for detecting broken state files that would then be cleaned up by some later command, but we always delete the entire `.hg/merge/` tree, so that doesn't seem to be it. The checks were added in (resolve: abort when not applicable (BC), 2014-04-18). Perhaps there were needed for that and then made obsolete by (resolve: don't abort resolve -l even when no merge is in progress, 2014-05-23). The reason I want to delete the checks is that I think `ms = mergestate.read(repo); ms.active() and ms.local` should be a valid pattern, but it crashes when the merge state file is an empty file if we consider mere presence of the file as "active". Differential Revision: https://phab.mercurial-scm.org/D8118

Raphaël Gomès - - Load All Authors

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      /*

      rust_re2.cpp

      C ABI export of Re2's C++ interface for Rust FFI.

      Copyright 2020 Valentin Gatien-Baron

      This software may be used and distributed according to the terms of the

      GNU General Public License version 2 or any later version.

      */

      #include <re2/re2.h>

      using namespace re2;

      extern "C" {

      	RE2* rust_re2_create(const char* data, size_t len) {

      		RE2::Options o;

      		o.set_encoding(RE2::Options::Encoding::EncodingLatin1);

      		o.set_log_errors(false);

      		o.set_max_mem(50000000);

      		return new RE2(StringPiece(data, len), o);

      	}

      	void rust_re2_destroy(RE2* re) {

      		delete re;

      	}

      	bool rust_re2_ok(RE2* re) {

      		return re->ok();

      	}

      	void rust_re2_error(RE2* re, const char** outdata, size_t* outlen) {

      		const std::string& e = re->error();

      		*outdata = e.data();

      		*outlen = e.length();

      	}

      	bool rust_re2_match(RE2* re, char* data, size_t len, int ianchor) {

      		const StringPiece sp = StringPiece(data, len);

      		RE2::Anchor anchor =

      			ianchor == 0 ? RE2::Anchor::UNANCHORED :

      			(ianchor == 1 ? RE2::Anchor::ANCHOR_START :

      			 RE2::Anchor::ANCHOR_BOTH);

      		return re->Match(sp, 0, len, anchor, NULL, 0);

      	}

      }

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				/*
				rust_re2.cpp

				C ABI export of Re2's C++ interface for Rust FFI.

				Copyright 2020 Valentin Gatien-Baron

				This software may be used and distributed according to the terms of the
				GNU General Public License version 2 or any later version.
				*/

				#include <re2/re2.h>
				using namespace re2;

				extern "C" {
				RE2* rust_re2_create(const char* data, size_t len) {
				RE2::Options o;
				o.set_encoding(RE2::Options::Encoding::EncodingLatin1);
				o.set_log_errors(false);
				o.set_max_mem(50000000);

				return new RE2(StringPiece(data, len), o);
				}

				void rust_re2_destroy(RE2* re) {
				delete re;
				}

				bool rust_re2_ok(RE2* re) {
				return re->ok();
				}

				void rust_re2_error(RE2* re, const char** outdata, size_t* outlen) {
				const std::string& e = re->error();
				*outdata = e.data();
				*outlen = e.length();
				}

				bool rust_re2_match(RE2* re, char* data, size_t len, int ianchor) {
				const StringPiece sp = StringPiece(data, len);

				RE2::Anchor anchor =
				ianchor == 0 ? RE2::Anchor::UNANCHORED :
				(ianchor == 1 ? RE2::Anchor::ANCHOR_START :
				RE2::Anchor::ANCHOR_BOTH);

				return re->Match(sp, 0, len, anchor, NULL, 0);
				}
				}