From f3602c092bc1c66fe0597defda37662a81412a6f Mon Sep 17 00:00:00 2001
From: Jonas Fonseca <jonas.fonseca@gmail.com>
Date: Fri, 13 Jul 2018 17:30:48 +0200
Subject: [PATCH] WIP #117 Add proto file and cmake integration

---
 bindgen/CMakeLists.txt |  17 ++++-
 proto/ir.proto         | 162 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 178 insertions(+), 1 deletion(-)
 create mode 100644 proto/ir.proto

diff --git a/bindgen/CMakeLists.txt b/bindgen/CMakeLists.txt
index 4f617da..066e1a1 100644
--- a/bindgen/CMakeLists.txt
+++ b/bindgen/CMakeLists.txt
@@ -3,10 +3,19 @@ project(scala-native-bindgen)
 
 option(STATIC_LINKING "Statically link the executable" OFF)
 
+if (STATIC_LINKING)
+  set(Protobuf_USE_STATIC_LIBS ON)
+endif()
+
+find_package(Protobuf REQUIRED)
+message(STATUS "Found protobuf ${Protobuf_VERSION}")
+
+message(STATUS "Using protobuf include dirs: ${Protobuf_INCLUDE_DIRS}")
+include_directories(SYSTEM ${Protobuf_INCLUDE_DIRS})
+
 # Locate LLVMConfig.cmake
 find_package(LLVM REQUIRED CONFIG)
 message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
-message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
 
 message(STATUS "Using LLVM include dirs: ${LLVM_INCLUDE_DIRS}")
 include_directories(SYSTEM ${LLVM_INCLUDE_DIRS})
@@ -19,6 +28,9 @@ link_directories(${LLVM_LIBRARY_DIRS})
 
 add_compile_options(-fexceptions -std=c++11 -Wall -Wconversion -Werror)
 
+protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS "${CMAKE_CURRENT_SOURCE_DIR}/../proto/ir.proto")
+include_directories(SYSTEM ${CMAKE_CURRENT_BINARY_DIR})
+
 add_executable(bindgen
   Main.cpp
   visitor/ScalaFrontendAction.h
@@ -74,6 +86,8 @@ add_executable(bindgen
   ir/Location.cpp
   ir/LocationManager.h
   ir/LocationManager.cpp
+  ${PROTO_SRCS}
+  ${PROTO_HDRS}
 )
 
 if (STATIC_LINKING)
@@ -113,4 +127,5 @@ target_link_libraries(bindgen
   clangLex
   clangBasic
   ${LLVM_LIBS}
+  ${Protobuf_LIBRARIES}
 )
diff --git a/proto/ir.proto b/proto/ir.proto
new file mode 100644
index 0000000..450e0b6
--- /dev/null
+++ b/proto/ir.proto
@@ -0,0 +1,162 @@
+syntax = "proto3";
+
+package org.scalanative.bindgen;
+
+option optimize_for = LITE_RUNTIME;
+
+message IR {
+  repeated EnumType enums = 1;
+  repeated StructType structs = 2;
+  repeated UnionType unions = 3;
+  repeated TypedefType typedefs = 4;
+  repeated Decl.FunctionDecl functions = 5;
+  repeated Decl.VariableDecl variables = 6;
+  //std::vector<std::shared_ptr<LiteralDefine>> literalDefines;
+  //std::vector<std::shared_ptr<PossibleVarDefine>> possibleVarDefines;
+  //std::vector<std::shared_ptr<VarDefine>> varDefines;
+}
+
+message Range {
+  int32 start_line = 1;
+  int32 start_character = 2;
+  int32 end_line = 3;
+  int32 end_character = 4;
+}
+
+message Location {
+  string uri = 1;
+  Range range = 2;
+}
+
+message Type {
+  /*
+  enum Kind {
+    UNKNOWN = 0;
+    PRIMITIVE = 1;
+    ENUM = 2;
+    POINTER = 3;
+    ARRAY = 4;
+    FUNCTION_POINTER = 5;
+    UNION = 6;
+    STRUCT = 7;
+    TYPEDEF = 8;
+  }
+  */
+
+  //Kind kind = 1; // FIXME: remove?
+  Location location = 2;
+
+  oneof kind {
+    PrimitiveType primitiveType = 3;
+    EnumType enumType = 4;
+    PointerType pointerType = 5;
+    ArrayType arrayType = 6;
+    FunctionPointerType functionPointerType = 7;
+    UnionType unionType = 8;
+    StructType structType = 9;
+    TypedefType typedefType = 10;
+  }
+}
+
+message PrimitiveType {
+  enum Modifier {
+    NONE = 0;
+    CONST = 0x1;
+  }
+
+  string type = 1;
+  uint64 modifiers = 2;
+}
+
+message EnumType {
+  message Enumerator {
+    string name = 1;
+    // Have both int64 and uint64?
+    int64 value = 2;
+  }
+
+  string name = 1;
+  repeated Enumerator enumerators = 2;
+}
+
+message PointerType {
+  Type type = 1;
+}
+
+message ArrayType {
+  Type type = 1;
+  uint64 size = 2;
+}
+
+message FunctionPointerType {
+  // FIXME: Include parameter name in doc string?
+  Type returnType = 1;
+  repeated Type parameterTypes = 2;
+  bool isVariadic = 3;
+}
+
+message Field {
+  string name = 1;
+  Type type = 2;
+}
+
+message UnionType {
+  string name = 1;
+  repeated Field fields = 2;
+  uint64 size = 3;
+}
+
+message StructType {
+  // FIXME: packed attr
+  string name = 1;
+  repeated Field fields = 2;
+  uint64 size = 3;
+}
+
+message TypedefType {
+  string name = 1;
+  Type type = 2;
+}
+
+message Decl {
+  /*
+  enum Kind {
+    UNKNOWN = 0;
+    FUNCTION = 1;
+    VARIABLE = 2;
+    VARIABLE_DEFINE = 3;
+    LITERAL_DEFINE = 4;
+  }
+  */
+
+  //Kind kind = 1;
+  Location location = 2;
+
+  oneof kind {
+    FunctionDecl functionDecl = 11;
+    VariableDecl variableDecl = 12;  
+  }
+
+  message FunctionDecl {
+    message Parameter {
+      string name = 1;
+      Type type = 2;
+    }
+    
+    string name = 1;
+    Type returnType = 2;
+    repeated Parameter parameters = 3;
+    bool isVariadic = 4;
+  }
+  
+  message VariableDecl {
+    enum Modifier {
+      NONE = 0;
+      VOLATILE = 1;
+    }
+  
+    string name = 1;
+    Type type = 2;
+    repeated Modifier modifiers = 3;
+  }
+}
\ No newline at end of file