Replace std::string_view of c++17 with c++11 compatible string-view-lite

Signed-off-by: HyukWoo Park <[email protected]>

build/target.cmake

@@ -25,7 +25,7 @@ ENDIF()
 
 # Default options per compiler
 IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC" OR ${COMPILER_CLANG_CL})
-    SET (WALRUS_CXXFLAGS /std:c++17 /fp:strict /Zc:__cplusplus /EHs /source-charset:utf-8 /D_CRT_SECURE_NO_WARNINGS /D_SILENCE_CXX17_ITERATOR_BASE_CLASS_DEPRECATION_WARNING /wd4244 /wd4267 /wd4805 /wd4018 /wd4172)
+    SET (WALRUS_CXXFLAGS /std:c++11 /fp:strict /Zc:__cplusplus /EHs /source-charset:utf-8 /D_CRT_SECURE_NO_WARNINGS /D_SILENCE_CXX17_ITERATOR_BASE_CLASS_DEPRECATION_WARNING /wd4244 /wd4267 /wd4805 /wd4018 /wd4172)
     SET (WALRUS_CXXFLAGS_RELEASE /O2 /Oy-)
     SET (WALRUS_THIRDPARTY_CFLAGS /D_CRT_SECURE_NO_WARNINGS /Oy- /wd4146 /EHs)
     IF (${COMPILER_CLANG_CL})
@@ -41,7 +41,7 @@ IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC" OR ${COMPILER_CLANG_CL})
     SET (WALRUS_CXXFLAGS_SHAREDLIB)
     SET (WALRUS_LDFLAGS_SHAREDLIB)
     SET (WALRUS_CXXFLAGS_STATICLIB /DWASM_API_EXTERN)
-    SET (WALRUS_CXXFLAGS_SHELL /DWASM_API_EXTERN /std:c++17)
+    SET (WALRUS_CXXFLAGS_SHELL /DWASM_API_EXTERN /std:c++11)
 ELSEIF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
     SET (WALRUS_CXXFLAGS
         ${WALRUS_CXXFLAGS}
@@ -73,7 +73,7 @@ ELSEIF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
     SET (WALRUS_CXXFLAGS_SHAREDLIB -fPIC)
     SET (WALRUS_LDFLAGS_SHAREDLIB -ldl)
     SET (WALRUS_CXXFLAGS_STATICLIB -fPIC -DWASM_API_EXTERN=)
-    SET (WALRUS_CXXFLAGS_SHELL -DWASM_API_EXTERN= -frtti -std=c++17)
+    SET (WALRUS_CXXFLAGS_SHELL -DWASM_API_EXTERN= -frtti -std=c++11)
 
 ELSEIF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") # Clang and AppleClang
     SET (WALRUS_CXXFLAGS
@@ -103,7 +103,7 @@ ELSEIF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") # Clang and AppleClang
     SET (WALRUS_CXXFLAGS_SHAREDLIB -fPIC)
     SET (WALRUS_LDFLAGS_SHAREDLIB -ldl)
     SET (WALRUS_CXXFLAGS_STATICLIB -fPIC -DWASM_API_EXTERN=)
-    SET (WALRUS_CXXFLAGS_SHELL -DWASM_API_EXTERN= -frtti -std=c++17)
+    SET (WALRUS_CXXFLAGS_SHELL -DWASM_API_EXTERN= -frtti -std=c++11)
 ELSE()
     MESSAGE (FATAL_ERROR ${CMAKE_CXX_COMPILER_ID} " is Unsupported Compiler")
 ENDIF()

src/shell/Shell.cpp

@@ -832,7 +832,7 @@ static void runExports(Store* store, const std::string& filename, const std::vec
 
 static void parseArguments(int argc, char* argv[], ArgParser& argParser)
 {
-    const std::vector<std::string_view> args(argv + 1, argv + argc);
+    const std::vector<nonstd::string_view> args(argv + 1, argv + argc);
 
     for (auto it = args.begin(); it != args.end(); ++it) {
         if (*it == "--run-export") {
@@ -842,12 +842,15 @@ static void parseArguments(int argc, char* argv[], ArgParser& argParser)
             }
 
             std::advance(it, 1);
-            argParser.exportToRun = *it;
-        } else if (auto arg = std::string(*it); endsWith(arg, "wat") || endsWith(arg, "wast") || endsWith(arg, "wasm")) {
-            argParser.fileNames.emplace_back(*it);
+            argParser.exportToRun = nonstd::to_string(*it);
         } else {
-            fprintf(stderr, "error: unknown argument: %s\n", it->data());
-            exit(1);
+            auto arg = nonstd::to_string(*it);
+            if (endsWith(arg, "wat") || endsWith(arg, "wast") || endsWith(arg, "wasm")) {
+                argParser.fileNames.emplace_back(*it);
+            } else {
+                fprintf(stderr, "error: unknown argument: %s\n", it->data());
+                exit(1);
+            }
         }
     }
 

third_party/wabt/CMakeLists.txt

@@ -18,7 +18,7 @@ cmake_minimum_required(VERSION 3.1.0)
 project(WABT LANGUAGES C CXX VERSION 1.0.30)
 include(GNUInstallDirs)
 
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

third_party/wabt/include/string-view-lite/LICENSE.txt

@@ -0,0 +1,23 @@
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.