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

rust-chg: have attach_io() simply take reference of AsRawFd object...

rust-chg: have attach_io() simply take reference of AsRawFd object We no longer have to deal with the restriction of the Future type. Before, these file objects couldn't be references and that's the only reason why we had to make stderr an Option<T>. This fixes future type deduction issue of stderr = None, where rustc would complain that T of Option<T> couldn't be deduced. Differential Revision: https://phab.mercurial-scm.org/D8443

Raphaël Gomès - - Load All Authors

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             rust_re2.cpp
        
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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);
				}
				}