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Make Regex and MatchInfo movable instead of allocating them on heap

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This commit is contained in:
Yevgen Muntyan 2017-05-16 20:47:05 -07:00
parent b0dfab95e3
commit d9ef2046dd
3 changed files with 90 additions and 29 deletions
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5
moo/moocpp/gstr.h
View File

@ -67,11 +67,6 @@ private:
char* m_p;
};
class gstrbuilder
{
};
namespace std
{

81
moo/moocpp/regex.cpp
View File

@ -16,6 +16,8 @@
#pragma once
#include "moocpp/regex.h"
#include "mooutils/mooutils-messages.h"
#include <utility>
namespace g
{
@ -30,12 +32,32 @@ Regex::~Regex()
g_regex_unref(m_p);
}
std::shared_ptr<Regex> Regex::compile(const char* pattern, CompileFlags compile_options, MatchFlags match_options, GError** error)
Regex::Regex(Regex&& other)
: m_p(other.m_p)
{
other.m_p = nullptr;
}
Regex& Regex::operator=(Regex&& other)
{
std::swap(m_p, other.m_p);
return *this;
}
bool Regex::is_valid() const
{
return m_p != nullptr;
}
Regex::operator bool() const
{
return m_p != nullptr;
}
Regex Regex::compile(const char* pattern, CompileFlags compile_options, MatchFlags match_options, GError** error)
{
GRegex* p = g_regex_new(pattern, GRegexCompileFlags(compile_options), GRegexMatchFlags(match_options), error);
if (!p)
return nullptr;
return std::make_shared<Regex>(p);
return Regex{p};
}
const char* Regex::get_pattern() const
@ -93,35 +115,35 @@ bool Regex::match(const char *pattern, const char *string, CompileFlags compile_
return g_regex_match_simple(pattern, string, GRegexCompileFlags(compile_options), GRegexMatchFlags(match_options));
}
std::unique_ptr<MatchInfo> Regex::match(const char* string, MatchFlags match_options) const
MatchInfo Regex::match(const char* string, MatchFlags match_options) const
{
return match(string, -1, 0, match_options, nullptr);
}
std::unique_ptr<MatchInfo> Regex::match(const gstr& string, MatchFlags match_options) const
MatchInfo Regex::match(const gstr& string, MatchFlags match_options) const
{
return match(string.get(), match_options);
}
std::unique_ptr<MatchInfo> Regex::match(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const
MatchInfo Regex::match(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const
{
GMatchInfo* match_info = nullptr;
if (!g_regex_match_full(m_p, string, string_len, start_position, GRegexMatchFlags(match_options), &match_info, error))
return nullptr;
return std::make_unique<MatchInfo>(*this, match_info, true);
return MatchInfo(*this);
return MatchInfo(*this, match_info, true);
}
std::unique_ptr<MatchInfo> Regex::match_all(const char* string, MatchFlags match_options) const
MatchInfo Regex::match_all(const char* string, MatchFlags match_options) const
{
return match_all(string, -1, 0, match_options, nullptr);
}
std::unique_ptr<MatchInfo> Regex::match_all(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const
MatchInfo Regex::match_all(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const
{
GMatchInfo* match_info = nullptr;
if (!g_regex_match_all_full(m_p, string, string_len, start_position, GRegexMatchFlags(match_options), &match_info, error))
return nullptr;
return std::make_unique<MatchInfo>(*this, match_info, true);
return MatchInfo(*this);
return MatchInfo(*this, match_info, true);
}
std::vector<gstr> Regex::split(const char* pattern, const char* string, CompileFlags compile_options, MatchFlags match_options)
@ -207,11 +229,17 @@ bool Regex::check_replacement(const char* replacement, bool& has_references, GEr
}
MatchInfo::MatchInfo(const Regex& regex)
: MatchInfo(regex, nullptr, false)
{
}
MatchInfo::MatchInfo(const Regex& regex, GMatchInfo* p, bool take_ownership)
: m_regex(regex)
, m_p(p)
, m_own(take_ownership)
{
moo_assert(m_p || !m_own);
}
MatchInfo::~MatchInfo()
@ -220,6 +248,32 @@ MatchInfo::~MatchInfo()
g_match_info_free(m_p);
}
MatchInfo::MatchInfo(MatchInfo&& other)
: m_regex(other.m_regex)
, m_p(other.m_p)
, m_own(other.m_own)
{
other.m_own = false;
}
MatchInfo& MatchInfo::operator=(MatchInfo&& other)
{
std::swap(m_regex, other.m_regex);
std::swap(m_p, other.m_p);
std::swap(m_own, other.m_own);
return *this;
}
bool MatchInfo::is_match() const
{
return m_p != nullptr;
}
MatchInfo::operator bool() const
{
return is_match();
}
const Regex& MatchInfo::get_regex() const
{
return m_regex;
@ -227,6 +281,7 @@ const Regex& MatchInfo::get_regex() const
const char* MatchInfo::get_string() const
{
g_return_val_if_fail(m_p != nullptr, nullptr);
return g_match_info_get_string(m_p);
}

33
moo/moocpp/regex.h
View File

@ -75,8 +75,13 @@ public:
~Regex();
Regex(const Regex&) = delete;
Regex& operator=(const Regex&) = delete;
Regex(Regex&&);
Regex& operator=(Regex&&);
static std::shared_ptr<Regex> compile(const char* pattern, CompileFlags compile_options = COMPILE_FLAGS_NONE, MatchFlags match_options = MATCH_FLAGS_NONE, GError** error = nullptr);
bool is_valid() const;
operator bool() const;
static Regex compile(const char* pattern, CompileFlags compile_options = COMPILE_FLAGS_NONE, MatchFlags match_options = MATCH_FLAGS_NONE, GError** error = nullptr);
const char* get_pattern() const;
int get_max_backref() const;
@ -93,11 +98,11 @@ public:
static bool match(const char *pattern, const char *string, CompileFlags compile_options = COMPILE_FLAGS_NONE, MatchFlags match_options = MATCH_FLAGS_NONE);
std::unique_ptr<MatchInfo> match(const char* string, MatchFlags match_options = MATCH_FLAGS_NONE) const;
std::unique_ptr<MatchInfo> match(const gstr& string, MatchFlags match_options = MATCH_FLAGS_NONE) const;
std::unique_ptr<MatchInfo> match(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const;
std::unique_ptr<MatchInfo> match_all(const char* string, MatchFlags match_options = MATCH_FLAGS_NONE) const;
std::unique_ptr<MatchInfo> match_all(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const;
MatchInfo match(const char* string, MatchFlags match_options = MATCH_FLAGS_NONE) const;
MatchInfo match(const gstr& string, MatchFlags match_options = MATCH_FLAGS_NONE) const;
MatchInfo match(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const;
MatchInfo match_all(const char* string, MatchFlags match_options = MATCH_FLAGS_NONE) const;
MatchInfo match_all(const char* string, ssize_t string_len, int start_position, MatchFlags match_options, GError** error) const;
static std::vector<gstr> split(const char* pattern, const char* string, CompileFlags compile_options = COMPILE_FLAGS_NONE, MatchFlags match_options = MATCH_FLAGS_NONE);
std::vector<gstr> split(const char* string, MatchFlags match_options = MATCH_FLAGS_NONE) const;
@ -117,10 +122,16 @@ private:
class MatchInfo
{
public:
MatchInfo(const Regex& regex, GMatchInfo* p, bool take_ownership);
~MatchInfo();
MatchInfo(const MatchInfo&) = delete;
MatchInfo& operator=(const MatchInfo&) = delete;
MatchInfo(const Regex& regex);
MatchInfo(const Regex& regex, GMatchInfo* p, bool take_ownership);
~MatchInfo();
MatchInfo(const MatchInfo&) = delete;
MatchInfo& operator=(const MatchInfo&) = delete;
MatchInfo(MatchInfo&&);
MatchInfo& operator=(MatchInfo&&);
bool is_match() const;
operator bool() const;
const Regex& get_regex() const;
const char* get_string() const;
@ -137,7 +148,7 @@ public:
std::vector<gstr> fetch_all() const;
private:
const Regex& m_regex;
std::reference_wrapper<const Regex> m_regex;
GMatchInfo* m_p;
bool m_own;
};