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-rw-r--r--Source/cmGeneratorExpressionNode.cxx2
-rw-r--r--Source/cmQtAutoGenInitializer.cxx1
-rw-r--r--Source/cmString.hxx212
-rw-r--r--Tests/CMakeLib/testString.cxx10
4 files changed, 170 insertions, 55 deletions
diff --git a/Source/cmGeneratorExpressionNode.cxx b/Source/cmGeneratorExpressionNode.cxx
index 66f1c71..14478c2 100644
--- a/Source/cmGeneratorExpressionNode.cxx
+++ b/Source/cmGeneratorExpressionNode.cxx
@@ -14,6 +14,7 @@
#include <utility>
#include <cm/iterator>
+#include <cm/string_view>
#include "cmsys/RegularExpression.hxx"
#include "cmsys/String.h"
@@ -37,7 +38,6 @@
#include "cmState.h"
#include "cmStateSnapshot.h"
#include "cmStateTypes.h"
-#include "cmString.hxx"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTarget.h"
diff --git a/Source/cmQtAutoGenInitializer.cxx b/Source/cmQtAutoGenInitializer.cxx
index ebb522b..acd85a0 100644
--- a/Source/cmQtAutoGenInitializer.cxx
+++ b/Source/cmQtAutoGenInitializer.cxx
@@ -42,7 +42,6 @@
#include "cmSourceGroup.h"
#include "cmState.h"
#include "cmStateTypes.h"
-#include "cmString.hxx"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTarget.h"
diff --git a/Source/cmString.hxx b/Source/cmString.hxx
index 073f4c9..9e91986 100644
--- a/Source/cmString.hxx
+++ b/Source/cmString.hxx
@@ -88,18 +88,6 @@ struct IntoString<std::string> : std::true_type
};
template <>
-struct IntoString<string_view> : std::true_type
-{
- static std::string into_string(string_view s) { return std::string(s); }
-};
-
-template <>
-struct IntoString<static_string_view> : std::true_type
-{
- static string_view into_string(static_string_view s) { return s; }
-};
-
-template <>
struct IntoString<char> : std::true_type
{
static std::string into_string(char const& c) { return std::string(1, c); }
@@ -239,6 +227,25 @@ public:
{
}
+ /**
+ * Construct via static_string_view constructor.
+ * explicit is required to avoid ambiguous overloaded operators (i.e ==,
+ * etc...) with the ones provided by string_view.
+ */
+ explicit String(static_string_view s)
+ : String(s, Private())
+ {
+ }
+ /**
+ * Construct via string_view constructor.
+ * explicit is required to avoid ambiguous overloaded operators (i.e ==,
+ * etc...) with the ones provided by string_view.
+ */
+ explicit String(string_view s)
+ : String(std::string(s), Private())
+ {
+ }
+
/** Construct via std::string initializer list constructor. */
String(std::initializer_list<char> il)
: String(std::string(il))
@@ -306,6 +313,17 @@ public:
This shares ownership of the other string's buffer. */
String& operator=(String const&) noexcept = default;
+ String& operator=(static_string_view s)
+ {
+ *this = String(s);
+ return *this;
+ }
+ String& operator=(string_view s)
+ {
+ *this = String(s);
+ return *this;
+ }
+
/** Assign from any type implementing the IntoString trait. */
template <typename T>
typename // NOLINT(*)
@@ -328,6 +346,7 @@ public:
/** Return a view of the string. */
string_view view() const noexcept { return view_; }
+ operator string_view() const noexcept { return this->view(); }
/** Return true if the instance is an empty stringn or null string. */
bool empty() const noexcept { return view_.empty(); }
@@ -638,58 +657,155 @@ private:
string_view view_;
};
-template <typename L, typename R>
-typename std::enable_if<AsStringView<L>::value && AsStringView<R>::value,
- bool>::type
-operator==(L&& l, R&& r)
+/**
+ * Trait for comparable types.
+ */
+template <typename T>
+struct IsComparable : std::false_type
+{
+};
+
+template <typename T>
+struct IsComparable<T&> : IsComparable<T>
+{
+};
+
+template <typename T>
+struct IsComparable<T const> : IsComparable<T>
+{
+};
+
+template <typename T>
+struct IsComparable<T const*> : IsComparable<T*>
+{
+};
+
+template <typename T, std::string::size_type N>
+struct IsComparable<T const[N]> : IsComparable<T[N]>
+{
+};
+
+template <>
+struct IsComparable<char*> : std::true_type
{
- return (AsStringView<L>::view(std::forward<L>(l)) ==
- AsStringView<R>::view(std::forward<R>(r)));
+};
+
+template <std::string::size_type N>
+struct IsComparable<char[N]> : std::true_type
+{
+};
+
+template <>
+struct IsComparable<std::string> : std::true_type
+{
+};
+
+template <>
+struct IsComparable<char> : std::true_type
+{
+};
+
+/** comparison operators */
+inline bool operator==(const String& l, const String& r)
+{
+ return l.view() == r.view();
+}
+template <typename L>
+typename std::enable_if<IsComparable<L>::value, bool>::type operator==(
+ L&& l, const String& r)
+{
+ return AsStringView<L>::view(std::forward<L>(l)) == r.view();
+}
+template <typename R>
+typename std::enable_if<IsComparable<R>::value, bool>::type operator==(
+ const String& l, R&& r)
+{
+ return l.view() == AsStringView<R>::view(std::forward<R>(r));
}
-template <typename L, typename R>
-typename std::enable_if<AsStringView<L>::value && AsStringView<R>::value,
- bool>::type
-operator!=(L&& l, R&& r)
+inline bool operator!=(const String& l, const String& r)
+{
+ return l.view() != r.view();
+}
+template <typename L>
+typename std::enable_if<IsComparable<L>::value, bool>::type operator!=(
+ L&& l, const String& r)
{
- return (AsStringView<L>::view(std::forward<L>(l)) !=
- AsStringView<R>::view(std::forward<R>(r)));
+ return AsStringView<L>::view(std::forward<L>(l)) != r.view();
+}
+template <typename R>
+typename std::enable_if<IsComparable<R>::value, bool>::type operator!=(
+ const String& l, R&& r)
+{
+ return l.view() != AsStringView<R>::view(std::forward<R>(r));
}
-template <typename L, typename R>
-typename std::enable_if<AsStringView<L>::value && AsStringView<R>::value,
- bool>::type
-operator<(L&& l, R&& r)
+inline bool operator<(const String& l, const String& r)
{
- return (AsStringView<L>::view(std::forward<L>(l)) <
- AsStringView<R>::view(std::forward<R>(r)));
+ return l.view() < r.view();
+}
+template <typename L>
+typename std::enable_if<IsComparable<L>::value, bool>::type operator<(
+ L&& l, const String& r)
+{
+ return AsStringView<L>::view(std::forward<L>(l)) < r.view();
+}
+template <typename R>
+typename std::enable_if<IsComparable<R>::value, bool>::type operator<(
+ const String& l, R&& r)
+{
+ return l.view() < AsStringView<R>::view(std::forward<R>(r));
}
-template <typename L, typename R>
-typename std::enable_if<AsStringView<L>::value && AsStringView<R>::value,
- bool>::type
-operator<=(L&& l, R&& r)
+inline bool operator<=(const String& l, const String& r)
+{
+ return l.view() <= r.view();
+}
+template <typename L>
+typename std::enable_if<IsComparable<L>::value, bool>::type operator<=(
+ L&& l, const String& r)
+{
+ return AsStringView<L>::view(std::forward<L>(l)) <= r.view();
+}
+template <typename R>
+typename std::enable_if<IsComparable<R>::value, bool>::type operator<=(
+ const String& l, R&& r)
{
- return (AsStringView<L>::view(std::forward<L>(l)) <=
- AsStringView<R>::view(std::forward<R>(r)));
+ return l.view() <= AsStringView<R>::view(std::forward<R>(r));
}
-template <typename L, typename R>
-typename std::enable_if<AsStringView<L>::value && AsStringView<R>::value,
- bool>::type
-operator>(L&& l, R&& r)
+inline bool operator>(const String& l, const String& r)
+{
+ return l.view() > r.view();
+}
+template <typename L>
+typename std::enable_if<IsComparable<L>::value, bool>::type operator>(
+ L&& l, const String& r)
+{
+ return AsStringView<L>::view(std::forward<L>(l)) > r.view();
+}
+template <typename R>
+typename std::enable_if<IsComparable<R>::value, bool>::type operator>(
+ const String& l, R&& r)
{
- return (AsStringView<L>::view(std::forward<L>(l)) >
- AsStringView<R>::view(std::forward<R>(r)));
+ return l.view() > AsStringView<R>::view(std::forward<R>(r));
}
-template <typename L, typename R>
-typename std::enable_if<AsStringView<L>::value && AsStringView<R>::value,
- bool>::type
-operator>=(L&& l, R&& r)
+inline bool operator>=(const String& l, const String& r)
+{
+ return l.view() >= r.view();
+}
+template <typename L>
+typename std::enable_if<IsComparable<L>::value, bool>::type operator>=(
+ L&& l, const String& r)
+{
+ return AsStringView<L>::view(std::forward<L>(l)) >= r.view();
+}
+template <typename R>
+typename std::enable_if<IsComparable<R>::value, bool>::type operator>=(
+ const String& l, R&& r)
{
- return (AsStringView<L>::view(std::forward<L>(l)) >=
- AsStringView<R>::view(std::forward<R>(r)));
+ return l.view() >= AsStringView<R>::view(std::forward<R>(r));
}
std::ostream& operator<<(std::ostream& os, String const& s);
diff --git a/Tests/CMakeLib/testString.cxx b/Tests/CMakeLib/testString.cxx
index d7b3200..1fd3f38 100644
--- a/Tests/CMakeLib/testString.cxx
+++ b/Tests/CMakeLib/testString.cxx
@@ -191,7 +191,7 @@ static bool testConstructFromView()
{
std::cout << "testConstructFromView()\n";
cm::string_view view = cstr;
- return testFromCStr(view);
+ return testFromCStr(cm::String(view));
}
static bool testAssignFromView()
@@ -297,7 +297,7 @@ static bool testFromStaticStringView(cm::String str)
static bool testConstructFromStaticStringView()
{
std::cout << "testConstructFromStaticStringView()\n";
- return testFromStaticStringView(staticStringView);
+ return testFromStaticStringView(cm::String(staticStringView));
}
static bool testAssignFromStaticStringView()
@@ -796,7 +796,7 @@ static bool testMethod_substr_AtEnd(cm::String str)
static bool testMethod_substr_AtEndBorrowed()
{
std::cout << "testMethod_substr_AtEndBorrowed()\n";
- return testMethod_substr_AtEnd("abc"_s);
+ return testMethod_substr_AtEnd(cm::String("abc"_s));
}
static bool testMethod_substr_AtEndOwned()
@@ -855,7 +855,7 @@ static bool testMethod_substr_AtStart(cm::String str)
static bool testMethod_substr_AtStartBorrowed()
{
std::cout << "testMethod_substr_AtStartBorrowed()\n";
- return testMethod_substr_AtStart("abc"_s);
+ return testMethod_substr_AtStart(cm::String("abc"_s));
}
static bool testMethod_substr_AtStartOwned()
@@ -1146,7 +1146,7 @@ static bool testAddition()
static bool testStability()
{
std::cout << "testStability()\n";
- cm::String str = "abc"_s;
+ cm::String str("abc"_s);
ASSERT_TRUE(!str.is_stable());
ASSERT_TRUE(str.str_if_stable() == nullptr);
str.stabilize();