yyc12345
7c88b3614a
- send message in console if PyBMap fail to load native dynamic library. this is good for user experience. - remove snippet from BMap bindings generator. We now insert generated code manually. - fix C sharp code generation issue in BMap bidnings generator. - add some content for BMapSharp.
274 lines
7.7 KiB
Java
274 lines
7.7 KiB
Java
import java.io.OutputStreamWriter;
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import java.util.Vector;
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import java.util.stream.Collectors;
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public class CSharpWriter {
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/**
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* The class represent the C# type corresponding to extracted variable type.
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*/
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private static class CsInteropType {
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public CsInteropType() {
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mMarshalAs = null;
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mCsType = null;
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}
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/**
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* The argument of MarshalAsAttribute constructor. In generation, this field
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* should be used like this: "[MarshalAs(THIS)]" (for parameter) or "[return:
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* MarshalAs(THIS)]" (for return value).
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*/
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public String mMarshalAs;
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/**
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* The C# type used in interop function declaration for corresponding parameter.
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*/
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public String mCsType;
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}
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/**
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* C# specified function which get C# used interop MarshalAs constructor
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* arguments and C# type used in interop function declaration.
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*
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* @param vt The instance of {@linkplain VariableType} for fetching interop
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* type.
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* @return The corresponding interop type of given variable type.
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*/
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private static CsInteropType getCsInteropType(ExpFctParamDecl paramdecl) {
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// get essential variable type properties first
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VariableType vt = paramdecl.mVarType;
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String vt_base_type = vt.getBaseType();
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int vt_pointer_level = vt.getPointerLevel();
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// create return value
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CsInteropType ret = new CsInteropType();
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// use "switch" to check variable type
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switch (vt_base_type) {
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case "CKSTRING":
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// only allow 0 and 1 pointer level for string.
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switch (vt_pointer_level) {
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case 0:
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ret.mMarshalAs = "UnmanagedType.LPUTF8Str";
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ret.mCsType = "string";
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break;
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case 1:
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ret.mMarshalAs = "UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(BMStringArrayMarshaler)";
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ret.mCsType = "string[]";
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break;
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}
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break;
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case "CKDWORD":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.U4";
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ret.mCsType = "uint";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "CKWORD":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.U2";
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ret.mCsType = "ushort";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "CKINT":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.I4";
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ret.mCsType = "int";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "bool":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.U1";
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ret.mCsType = "bool";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "CKFLOAT":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.R4";
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ret.mCsType = "float";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "CKBYTE":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.U1";
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ret.mCsType = "byte";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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case "CK_ID":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.U4";
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ret.mCsType = "uint";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "NakedOutputCallback":
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// callback actually is a function pointer
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// so it only allow base type without any pointer level.
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.FunctionPtr";
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ret.mCsType = "OutputCallback";
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}
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break;
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case "BMFile":
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// In any case, BMFile only should be raw pointer
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if (vt_pointer_level != 0) {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "BMMeshTransition":
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// In any case, BMMeshTransition only should be raw pointer
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if (vt_pointer_level != 0) {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "VxVector3":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.Struct";
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ret.mCsType = "VxVector3";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "VxVector2":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.Struct";
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ret.mCsType = "VxVector2";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "VxColor":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.Struct";
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ret.mCsType = "VxColor";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "VxMatrix":
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.Struct";
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ret.mCsType = "VxMatrix";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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case "CK_TEXTURE_SAVEOPTIONS":
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case "VX_PIXELFORMAT":
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case "VXTEXTURE_BLENDMODE":
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case "VXTEXTURE_FILTERMODE":
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case "VXTEXTURE_ADDRESSMODE":
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case "VXBLEND_MODE":
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case "VXFILL_MODE":
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case "VXSHADE_MODE":
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case "VXCMPFUNC":
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case "VXMESH_LITMODE":
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// all enum share the same underlying type.
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if (vt_pointer_level == 0) {
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ret.mMarshalAs = "UnmanagedType.U4";
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ret.mCsType = "uint";
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} else {
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ret.mMarshalAs = "UnmanagedType.SysInt";
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ret.mCsType = "IntPtr";
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}
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break;
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}
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// check whether we successfully get result
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if (ret.mMarshalAs == null || ret.mCsType == null) {
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throw new IllegalArgumentException("Unexpected type: " + vt.toCType());
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}
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// return value
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return ret;
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}
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public static void writeCSharpCode(Vector<ExpFctDecl> data) throws Exception {
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OutputStreamWriter writer = CommonHelper.openWriter("dest/BMExports.cs");
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IndentHelper helper = new IndentHelper(writer);
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// write function decls
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for (ExpFctDecl fctdecl : data) {
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// write annotation
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// summary (just plain function name)
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helper.printf("/// <summary>%s</summary>", fctdecl.mFctName);
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// parameter list
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for (ExpFctParamDecl paramdecl : fctdecl.mFctParams) {
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helper.printf("/// <param name=\"%s\">Type: %s. %s%s</param>", paramdecl.mVarName,
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paramdecl.mVarType.toCType(), (paramdecl.mIsInput ? "" : "This is OUT parameter. "),
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paramdecl.mVarDesc);
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}
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// return value
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helper.puts("/// <returns>True if no error, otherwise False.</returns>");
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// write real function declaration
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// first, write DllImportAttribute
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helper.printf(
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"[DllImport(g_DllName, EntryPoint = \"%s\", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi, ExactSpelling = true)]",
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fctdecl.mFctName);
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// second, write return value MarshalAsAttribute
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helper.printf("[return: MarshalAs(UnmanagedType.U1)]");
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// then, before we write function body, we need origanize its parameter list
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// first
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Vector<String> cs_param_list = new Vector<String>();
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for (ExpFctParamDecl paramdecl : fctdecl.mFctParams) {
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// create string builder
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StringBuilder sb = new StringBuilder();
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// push in out symbol
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if (paramdecl.mIsInput) {
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sb.append("[In, ");
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} else {
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sb.append("[Out, ");
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}
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// get interop type now
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CsInteropType interop_type = getCsInteropType(paramdecl);
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// push MarshalAsAttribute
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sb.append("MarshalAs(");
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sb.append(interop_type.mMarshalAs);
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sb.append(")] ");
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// push out keyword if parameter is out parameter
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if (!paramdecl.mIsInput) {
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sb.append("out ");
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}
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// push parameter cs type
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sb.append(interop_type.mCsType);
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sb.append(" ");
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// push parameter name
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sb.append(paramdecl.mVarName);
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// insert built string into list
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cs_param_list.add(sb.toString());
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}
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// join built parameter list and output real function declaration
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helper.printf("internal static extern bool %s(%s);", fctdecl.mFctName,
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cs_param_list.stream().collect(Collectors.joining(", ")));
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}
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writer.close();
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}
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}
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