test ffi

test/flutter_qjs_test.dart

@@ -0,0 +1,33 @@
+/*
+ * @Description: 
+ * @Author: ekibun
+ * @Date: 2020-09-06 13:02:46
+ * @LastEditors: ekibun
+ * @LastEditTime: 2020-09-13 17:29:26
+ */
+import 'dart:ffi';
+import 'package:ffi/ffi.dart';
+
+void main() {
+  final DynamicLibrary qjsLib = DynamicLibrary.open("test/lib/build/Debug/ffi_library.dll");
+  print(qjsLib);
+  // JSRuntime *js_NewRuntime(void);
+  final Pointer Function() jsNewRuntime =
+      qjsLib.lookup<NativeFunction<Pointer Function()>>("jsNewRuntime").asFunction();
+  final rt = jsNewRuntime();
+  print(rt);
+  // JSContext *js_NewContext(JSRuntime *rt);
+  final Pointer Function(Pointer rt) jsNewContext =
+      qjsLib.lookup<NativeFunction<Pointer Function(Pointer)>>("jsNewContext").asFunction();
+  final ctx = jsNewContext(rt);
+  print(ctx);
+  // JSValue *js_Eval(JSContext *ctx, const char *input, const char *filename, int eval_flags)
+  final Pointer Function(Pointer rt, Pointer<Utf8> input, Pointer<Utf8> filename, int evalFlags) jsEval =
+      qjsLib.lookup<NativeFunction<Pointer Function(Pointer,Pointer<Utf8>,Pointer<Utf8>, Int32)>>("jsEval").asFunction();
+  final jsval = jsEval(ctx, Utf8.toUtf8("1+1"), Utf8.toUtf8("<eval>"), 0);
+  // const char *js_ToCString(JSContext *ctx, JSValue *val)
+  final Pointer<Utf8> Function(Pointer rt, Pointer val) jsToCString =
+      qjsLib.lookup<NativeFunction<Pointer<Utf8> Function(Pointer,Pointer)>>("jsToCString").asFunction();
+  final str = Utf8.fromUtf8(jsToCString(ctx, jsval));
+  print(str);
+}

test/lib/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.7 FATAL_ERROR)
+project(ffi_library LANGUAGES CXX)
+add_library(ffi_library SHARED ffi.cpp)
+
+# quickjs
+set(QUICK_JS_LIB_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../cxx/quickjs)
+file (STRINGS "${QUICK_JS_LIB_DIR}/VERSION" QUICKJS_VERSION)
+add_library(libquickjs STATIC
+    ${QUICK_JS_LIB_DIR}/cutils.c
+    ${QUICK_JS_LIB_DIR}/libregexp.c
+    ${QUICK_JS_LIB_DIR}/libunicode.c
+    ${QUICK_JS_LIB_DIR}/quickjs.c
+)
+
+project(libquickjs LANGUAGES C)
+target_compile_options(libquickjs PRIVATE "-DCONFIG_VERSION=\"${QUICKJS_VERSION}\"")
+target_compile_options(libquickjs PRIVATE "-DDUMP_LEAKS")
+
+target_link_libraries(ffi_library PRIVATE libquickjs)

test/lib/ffi.cpp

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+/*
+ * @Description: 
+ * @Author: ekibun
+ * @Date: 2020-09-06 18:32:45
+ * @LastEditors: ekibun
+ * @LastEditTime: 2020-09-13 17:26:29
+ */
+#include "../../cxx/quickjs/quickjs.h"
+#include <cstring>
+
+#ifdef _MSC_VER
+#define DLLEXPORT __declspec(dllexport)
+#else
+#define DLLEXPORT __attribute__((visibility("default")))
+#endif
+
+extern "C"
+{
+
+  DLLEXPORT JSRuntime *jsNewRuntime()
+  {
+    return JS_NewRuntime();
+  }
+
+  DLLEXPORT JSContext *jsNewContext(JSRuntime *rt)
+  {
+    return JS_NewContext(rt);
+  }
+
+  DLLEXPORT JSValue *jsEval(JSContext *ctx, const char *input, const char *filename, int eval_flags)
+  {
+    return new JSValue{JS_Eval(ctx, input, strlen(input), filename, eval_flags)};
+  }
+
+  DLLEXPORT const char *jsToCString(JSContext *ctx, JSValue *val)
+  {
+    return JS_ToCString(ctx, *val);
+  }
+}

test/lib/make.cmd

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+cd %~dp0
+set CMAKE="C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe"
+set BUILD_DIR="./build"
+%CMAKE% -S ./ -B %BUILD_DIR%
+%CMAKE% --build %BUILD_DIR% --verbose