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Add initial QuickJS generator.
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‎examples/QuickJS/build.sh

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set -ex
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mono ../../build/vs2015/lib/Debug_x64/CppSharp.CLI.exe -gen=qjs -module=test -prefix=js_ test-native.h
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../../build/premake5-osx --file=premake5.lua gmake
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make clean
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make
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cp gen/bin/release/libtest.dylib .
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../../deps/QuickJS/qjs test.js

‎examples/QuickJS/premake5.lua

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qjs_inc_dir = path.getabsolute("../../deps/QuickJS")
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qjs_lib_dir = path.getabsolute("../../deps/QuickJS")
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workspace "qjs"
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configurations { "release" }
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project "test-native"
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kind "StaticLib"
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files { "*-native.cpp" }
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include "gen/js_premake5.lua"
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project "test"
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includedirs { "." }
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links { "test-native" }

‎examples/QuickJS/test-native.cpp

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#include "test-native.h"
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extern "C" int plus(int a, int b)
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{
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return a + b;
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}

‎examples/QuickJS/test-native.h

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extern "C" int plus(int a, int b);

‎examples/QuickJS/test.js

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import { plus } from './libtest.dylib'
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console.log(plus(1, 2))

‎src/CLI/CLI.cs

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case "cpp":
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options.Kind = CppSharp.Generators.GeneratorKind.CPlusPlus;
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return;
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case "qjs":
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options.Kind = CppSharp.Generators.GeneratorKind.QuickJS;
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return;
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}
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errorMessages.Add($"Unknown generator kind: {generator}. Defaulting to {options.Kind}");

‎src/Generator/Driver.cs

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@@ -45,6 +45,8 @@ Generator CreateGeneratorFromKind(GeneratorKind kind)
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return new CLIGenerator(Context);
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case GeneratorKind.CSharp:
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return new CSharpGenerator(Context);
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case GeneratorKind.QuickJS:
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return new QuickJSGenerator(Context);
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}
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throw new NotImplementedException();

‎src/Generator/Generator.cs

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@@ -16,7 +16,8 @@ public enum GeneratorKind
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CPlusPlus,
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ObjectiveC,
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Java,
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Swift
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Swift,
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QuickJS
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}
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/// <summary>

‎src/Generator/Generators/C/QuickJS/QuickJSGenerator.cs

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using System.Collections.Generic;
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using CppSharp.AST;
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using CppSharp.Generators.Cpp;
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namespace CppSharp.Generators.C
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{
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/// <summary>
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/// QuickJS generator responsible for driving the generation of binding files.
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/// QuickJS documentation: https://bellard.org/quickjs/
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/// </summary>
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public class QuickJSGenerator : CppGenerator
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{
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public QuickJSGenerator(BindingContext context) : base(context)
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{
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}
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public override List<GeneratorOutput> Generate()
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{
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var outputs = base.Generate();
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foreach (var module in Context.Options.Modules)
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{
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if (module == Context.Options.SystemModule)
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continue;
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var output = GenerateModule(module);
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if (output != null)
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{
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OnUnitGenerated(output);
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outputs.Add(output);
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}
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var premake = GeneratePremake(module);
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if (premake != null)
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{
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OnUnitGenerated(premake);
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outputs.Add(premake);
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}
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}
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return outputs;
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}
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public override List<CodeGenerator> Generate(IEnumerable<TranslationUnit> units)
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{
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var outputs = new List<CodeGenerator>();
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var header = new QuickJSHeaders(Context, units);
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outputs.Add(header);
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var source = new QuickJSSources(Context, units);
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outputs.Add(source);
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return outputs;
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}
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public override GeneratorOutput GenerateModule(Module module)
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{
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if (module == Context.Options.SystemModule)
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return null;
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var moduleGen = new QuickJSModule(Context, module);
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var output = new GeneratorOutput
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{
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TranslationUnit = new TranslationUnit
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{
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FilePath = $"{module.LibraryName}_qjs_module.cpp",
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Module = module
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},
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Outputs = new List<CodeGenerator> { moduleGen }
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};
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output.Outputs[0].Process();
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return output;
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}
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public GeneratorOutput GeneratePremake(Module module)
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{
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if (module == Context.Options.SystemModule)
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return null;
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var premakeGen = new QuickJSPremakeBuildGenerator(Context, module);
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var output = new GeneratorOutput
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{
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TranslationUnit = new TranslationUnit
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{
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FilePath = "premake5.lua",
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Module = module
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},
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Outputs = new List<CodeGenerator> { premakeGen }
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};
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output.Outputs[0].Process();
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return output;
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}
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}
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class QuickJSPremakeBuildGenerator : CodeGenerator
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{
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readonly Module module;
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public QuickJSPremakeBuildGenerator(BindingContext context, Module module)
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: base(context, (TranslationUnit)null)
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{
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this.module = module;
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}
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public override string FileExtension => "lua";
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public override void Process()
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{
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/*
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var qjsPath = @"/Users/joao/Dev/CppSharp/examples/wxSharp/QuickJS";
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WriteLine($"qjs_inc_dir = \"{qjsPath}\"");
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WriteLine($"qjs_lib_dir = \"{qjsPath}\"");
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WriteLine("workspace \"qjs\"");
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WriteLineIndent("configurations { \"release\" }");
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*/
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WriteLine($"project \"{module.LibraryName}\"");
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Indent();
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WriteLine("kind \"SharedLib\"");
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WriteLine("language \"C++\"");
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WriteLine("files { \"*.cpp\" }");
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WriteLine("includedirs { qjs_inc_dir }");
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WriteLine("libdirs { qjs_lib_dir }");
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WriteLine("filter { \"kind:StaticLib\" }");
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WriteLineIndent("links { \"quickjs\" }");
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WriteLine("filter { \"kind:SharedLib\" }");
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WriteLineIndent("defines { \"JS_SHARED_LIBRARY\" }");
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WriteLine("filter { \"kind:SharedLib\", \"system:macosx\" }");
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WriteLineIndent("linkoptions { \"-undefined dynamic_lookup\" }");
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Unindent();
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}
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}
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/* TODO: Write a build.sh aswell.
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* set -ex
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../../../../../build/premake5-osx gmake
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make clean
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make
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*/
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}

‎src/Generator/Generators/C/QuickJS/QuickJSHeaders.cs

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using System.Collections.Generic;
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using CppSharp.AST;
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using CppSharp.Generators.C;
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namespace CppSharp.Generators.Cpp
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{
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/// <summary>
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/// Generates QuickJS C/C++ header files.
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/// QuickJS documentation: https://bellard.org/quickjs/
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/// </summary>
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public class QuickJSHeaders : CppHeaders
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{
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public QuickJSHeaders(BindingContext context, IEnumerable<TranslationUnit> units)
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: base(context, units)
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{
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CTypePrinter.PushContext(TypePrinterContextKind.Managed);
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}
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public override bool ShouldGenerateNamespaces => false;
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public override void Process()
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{
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GenerateFilePreamble(CommentKind.BCPL);
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PushBlock(BlockKind.Includes);
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WriteLine("#pragma once");
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NewLine();
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var include = new CInclude()
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{
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File = "quickjs.h",
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Kind = CInclude.IncludeKind.Angled
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};
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WriteInclude(include);
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NewLine();
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PopBlock();
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VisitNamespace(TranslationUnit);
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}
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public override bool VisitFunctionDecl(Function function)
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{
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Write("extern \"C\" ");
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WriteLine($"JSValue js_{function.Name}(JSContext* ctx, JSValueConst this_val,");
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WriteLineIndent("int argc, JSValueConst* argv);");
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return true;
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}
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}
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}

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