private static void generateParameter(PrintWriter writer, ParameterDeclaration param, Mode mode) {
   writer.print(", ");
   if (mode == Mode.BUFFEROBJECT && param.getAnnotation(BufferObject.class) != null) {
     writer.print("jlong " + param.getSimpleName() + Utils.BUFFER_OBJECT_PARAMETER_POSTFIX);
   } else if (param.getAnnotation(GLpointer.class) != null) {
     writer.print("jlong " + param.getSimpleName());
   } else {
     JNITypeTranslator translator = new JNITypeTranslator();
     param.getType().accept(translator);
     writer.print(translator.getSignature() + " " + param.getSimpleName());
     if (Utils.getNIOBufferType(param.getType()) != null)
       writer.print(", jint " + param.getSimpleName() + BUFFER_POSITION_POSTFIX);
   }
 }
Esempio n. 2
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  private static boolean printMethodCallArguments(
      PrintWriter writer,
      ExecutableElement method,
      Map<VariableElement, TypeInfo> typeinfos_instance,
      Mode mode,
      TypeMap type_map) {
    boolean first_parameter = true;
    for (VariableElement param : method.getParameters()) {
      if (param.getAnnotation(Result.class) != null
          || (param.getAnnotation(Helper.class) != null
              && !param.getAnnotation(Helper.class).passToNative())) {
        continue;
      }

      final Constant constant_annotation = param.getAnnotation(Constant.class);
      if (constant_annotation == null || !constant_annotation.isNative()) {
        first_parameter =
            printMethodCallArgument(
                writer, method, param, typeinfos_instance, mode, first_parameter, type_map);
      }
    }
    if (Utils.getNIOBufferType(Utils.getMethodReturnType(method)) != null) {
      if (method.getAnnotation(CachedResult.class) != null
          && method.getAnnotation(CachedResult.class).isRange()) {
        first_parameter = false;
        Utils.printExtraCallArguments(writer, method, "");
      } else {
        AutoSize auto_size_annotation = method.getAnnotation(AutoSize.class);
        if (auto_size_annotation == null || !auto_size_annotation.isNative()) {
          if (!first_parameter) {
            writer.print(", ");
          }
          first_parameter = false;

          String result_size_expression;
          if (mode == Mode.CACHEDRESULT) {
            result_size_expression = Utils.CACHED_BUFFER_LENGTH_NAME;
          } else if (auto_size_annotation == null) {
            result_size_expression = Utils.RESULT_SIZE_NAME;
          } else {
            result_size_expression = auto_size_annotation.value();
          }

          Utils.printExtraCallArguments(writer, method, result_size_expression);
        }
      }
    }
    return first_parameter;
  }
Esempio n. 3
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 private static boolean generateParameterJava(
     PrintWriter writer,
     VariableElement param,
     TypeInfo type_info,
     boolean native_stub,
     final boolean printTypes,
     boolean first_parameter,
     Mode mode) {
   Class buffer_type = Utils.getNIOBufferType(param.asType());
   if (!first_parameter) {
     writer.print(", ");
   }
   BufferObject bo_annotation = param.getAnnotation(BufferObject.class);
   if (bo_annotation != null && mode == Mode.BUFFEROBJECT) {
     if (buffer_type == null) {
       throw new RuntimeException(
           "type of "
               + param
               + " is not a nio Buffer parameter but is annotated as buffer object");
     }
     if (printTypes) {
       writer.print("long ");
     }
     writer.print(param.getSimpleName() + Utils.BUFFER_OBJECT_PARAMETER_POSTFIX);
   } else {
     if (native_stub && param.getAnnotation(PointerWrapper.class) != null) {
       writer.print("long ");
     } else {
       Class type = type_info.getType();
       if (native_stub
           && (type == CharSequence.class
               || type == CharSequence[].class
               || type == PointerBuffer.class
               || Buffer.class.isAssignableFrom(type))) {
         writer.print("long ");
       } else if (printTypes) {
         writer.print(type.getSimpleName() + " ");
       }
     }
     AutoSize auto_size_annotation = param.getAnnotation(AutoSize.class);
     if (auto_size_annotation != null) {
       writer.print(auto_size_annotation.value() + "_");
     }
     writer.print(param.getSimpleName());
   }
   return false;
 }
Esempio n. 4
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  private static boolean printMethodCallArgument(
      PrintWriter writer,
      ExecutableElement method,
      VariableElement param,
      Map<VariableElement, TypeInfo> typeinfos_instance,
      Mode mode,
      boolean first_parameter,
      TypeMap type_map) {
    if (!first_parameter) {
      writer.print(", ");
    }

    AnnotationMirror auto_annotation = Utils.getParameterAutoAnnotation(param);
    Constant constant_annotation = param.getAnnotation(Constant.class);
    if (constant_annotation != null) {
      writer.print(constant_annotation.value());
    } else if (auto_annotation != null && mode == Mode.NORMAL) {
      Class param_type = NativeTypeTranslator.getClassFromType(auto_annotation.getAnnotationType());
      if (AutoType.class.equals(param_type)) {
        final AutoType auto_type_annotation = param.getAnnotation(AutoType.class);
        final VariableElement auto_parameter =
            Utils.findParameter(method, auto_type_annotation.value());
        final String auto_type = typeinfos_instance.get(auto_parameter).getAutoType();
        if (auto_type == null) {
          throw new RuntimeException(
              "No auto type for parameter " + param.getSimpleName() + " in method " + method);
        }
        writer.print(auto_type);
      } else if (AutoSize.class.equals(param_type)) {
        final AutoSize auto_size_annotation = param.getAnnotation(AutoSize.class);
        if (!auto_size_annotation.useExpression()) {
          final String auto_parameter_name = auto_size_annotation.value();
          final VariableElement auto_target_param =
              Utils.findParameter(method, auto_parameter_name);
          final TypeInfo auto_target_type_info = typeinfos_instance.get(auto_target_param);
          final boolean shift_remaining =
              !hasAnyParameterAutoTypeAnnotation(method, auto_target_param)
                  && Utils.isParameterMultiTyped(auto_target_param);
          int shifting = 0;
          if (shift_remaining) {
            shifting = getBufferElementSizeExponent(auto_target_type_info.getType());
            if (shifting > 0) {
              writer.print("(");
            }
          }
          if (auto_size_annotation.canBeNull()) {
            writer.print(
                "("
                    + auto_parameter_name
                    + " == null ? 0 : "
                    + auto_parameter_name
                    + ".remaining())");
          } else {
            writer.print(auto_parameter_name + ".remaining()");
          }
          // Shift the remaining if the target parameter is multityped and there's no AutoType to
          // track type
          if (shift_remaining && shifting > 0) {
            writer.print(" << " + shifting);
            writer.print(")");
          }
        }
        writer.print(auto_size_annotation.expression());
      } else {
        throw new RuntimeException("Unknown auto annotation " + param_type);
      }
    } else {
      if (mode == Mode.BUFFEROBJECT && param.getAnnotation(BufferObject.class) != null) {
        writer.print(param.getSimpleName() + Utils.BUFFER_OBJECT_PARAMETER_POSTFIX);
      } else {
        Class type = typeinfos_instance.get(param).getType();
        Check check_annotation = param.getAnnotation(Check.class);
        boolean hide_buffer = mode == Mode.AUTOS && getAutoTypeParameter(method, param) != null;
        if (hide_buffer) {
          writer.print("0L");
        } else {
          if (type == CharSequence.class || type == CharSequence[].class) {
            final String offset = Utils.getStringOffset(method, param);

            writer.print("APIUtil.getBuffer");
            if (param.getAnnotation(NullTerminated.class) != null) {
              writer.print("NT");
            }
            writer.print('(');
            writer.print(type_map.getAPIUtilParam(true));
            writer.print(param.getSimpleName());
            if (offset != null) {
              writer.print(", " + offset);
            }
            writer.print(")");
          } else {
            final AutoSize auto_size_annotation = param.getAnnotation(AutoSize.class);
            if (auto_size_annotation != null) {
              writer.print(auto_size_annotation.value() + "_");
            }

            final Class buffer_type = Utils.getNIOBufferType(param.asType());
            if (buffer_type == null) {
              writer.print(param.getSimpleName());
            } else {
              writer.print("MemoryUtil.getAddress");
              if (check_annotation != null && check_annotation.canBeNull()) {
                writer.print("Safe");
              }
              writer.print("(");
              writer.print(param.getSimpleName());
              writer.print(")");
            }
          }
        }
        if (type != long.class) {
          PointerWrapper pointer_annotation = param.getAnnotation(PointerWrapper.class);
          if (pointer_annotation != null) {
            if (pointer_annotation.canBeNull()) {
              writer.print(" == null ? 0 : " + param.getSimpleName());
            }
            writer.print(".getPointer()");
          }
        }
      }
    }
    return false;
  }
Esempio n. 5
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  private static boolean generateParametersJava(
      PrintWriter writer,
      ExecutableElement method,
      Map<VariableElement, TypeInfo> typeinfos_instance,
      boolean native_stub,
      final boolean printTypes,
      Mode mode) {
    boolean first_parameter = true;
    for (VariableElement param : method.getParameters()) {
      if (native_stub
          && (param.getAnnotation(Helper.class) != null
              && !param.getAnnotation(Helper.class).passToNative())) {
        continue;
      }
      final Constant constant_annotation = param.getAnnotation(Constant.class);
      if (constant_annotation != null && constant_annotation.isNative()) {
        continue;
      }
      AnnotationMirror auto_annotation_mirror = Utils.getParameterAutoAnnotation(param);
      boolean hide_auto_parameter =
          mode == Mode.NORMAL && !native_stub && auto_annotation_mirror != null;
      if (hide_auto_parameter) {
        AutoType auto_type_annotation = param.getAnnotation(AutoType.class);
        if (auto_type_annotation != null) {
          VariableElement auto_parameter =
              Utils.findParameter(method, auto_type_annotation.value());
          TypeInfo auto_param_type_info = typeinfos_instance.get(auto_parameter);
          if (auto_param_type_info.getSignedness() == Signedness.BOTH) {
            if (!first_parameter) {
              writer.print(", ");
            }
            first_parameter = false;
            if (printTypes) {
              writer.print("boolean ");
            }
            writer.print(TypeInfo.UNSIGNED_PARAMETER_NAME);
          }
        }
      } else if (param.getAnnotation(Result.class) == null
          && (native_stub
              || ((param.getAnnotation(Constant.class) == null
                      || param.getAnnotation(Constant.class).keepParam())
                  && !Utils.isReturnParameter(method, param)))
          && (mode != Mode.AUTOS || getAutoTypeParameter(method, param) == null)) {
        first_parameter =
            generateParameterJava(
                writer,
                param,
                typeinfos_instance.get(param),
                native_stub,
                printTypes,
                first_parameter,
                mode);
      }
    }
    CachedResult cached_result_annotation = method.getAnnotation(CachedResult.class);
    TypeMirror result_type = Utils.getMethodReturnType(method);
    if ((native_stub && Utils.getNIOBufferType(result_type) != null)
        || Utils.needResultSize(method)) {
      AutoSize auto_size_annotation = method.getAnnotation(AutoSize.class);
      if (auto_size_annotation == null || !auto_size_annotation.isNative()) {
        if (cached_result_annotation == null || !cached_result_annotation.isRange()) {
          if (!first_parameter) {
            writer.print(", ");
          }
          first_parameter = false;
          if (printTypes) {
            writer.print("long ");
          }
          writer.print(Utils.RESULT_SIZE_NAME);
        }
      }
    }
    if (cached_result_annotation != null) {
      if (!first_parameter) {
        writer.print(", ");
      }

      if (mode == Mode.CACHEDRESULT) {
        if (printTypes) {
          writer.print("long ");
        }
        writer.print(Utils.CACHED_BUFFER_LENGTH_NAME + ", ");
      }

      first_parameter = false;
      if (printTypes) {
        writer.print(getResultType(method, native_stub));
      }
      writer.print(" " + Utils.CACHED_BUFFER_NAME);
    }
    return first_parameter;
  }
  private static void generateMethodStub(
      AnnotationProcessorEnvironment env,
      TypeMap type_map,
      PrintWriter writer,
      String interface_name,
      MethodDeclaration method,
      Mode mode,
      boolean generate_error_checks,
      boolean context_specific) {
    if (!context_specific && method.getAnnotation(Alternate.class) == null) writer.print("static ");
    else writer.print("JNIEXPORT ");

    TypeMirror result_type = Utils.getMethodReturnType(method);

    if (method.getAnnotation(GLpointer.class) != null) {
      writer.print("jlong");
    } else {
      JNITypeTranslator translator = new JNITypeTranslator();
      result_type.accept(translator);
      writer.print(translator.getSignature());
    }
    writer.print(" JNICALL ");

    writer.print(
        Utils.getQualifiedNativeMethodName(
            interface_name, method, generate_error_checks, context_specific));
    if (mode == Mode.BUFFEROBJECT) writer.print(Utils.BUFFER_OBJECT_METHOD_POSTFIX);
    writer.print("(JNIEnv *env, jclass clazz");
    generateParameters(writer, method.getParameters(), mode);
    if (Utils.getNIOBufferType(result_type) != null) {
      CachedResult cached_result_annotation = method.getAnnotation(CachedResult.class);
      if (cached_result_annotation == null || !cached_result_annotation.isRange())
        writer.print(", jlong " + Utils.RESULT_SIZE_NAME);
      if (cached_result_annotation != null) writer.print(", jobject " + Utils.CACHED_BUFFER_NAME);
    }
    if (context_specific) {
      writer.print(", jlong " + Utils.FUNCTION_POINTER_VAR_NAME);
    }
    writer.println(") {");
    generateBufferParameterAddresses(type_map, writer, method, mode);
    Alternate alt_annotation = method.getAnnotation(Alternate.class);
    if (context_specific) {
      String typedef_name = Utils.getTypedefName(method);
      writer.print(
          "\t"
              + typedef_name
              + " "
              + (alt_annotation == null ? method.getSimpleName() : alt_annotation.value()));
      writer.print(" = (" + typedef_name + ")((intptr_t)");
      writer.println(Utils.FUNCTION_POINTER_VAR_NAME + ");");
    }
    generateStringListInits(writer, method.getParameters());
    writer.print("\t");
    if (!result_type.equals(env.getTypeUtils().getVoidType())) {
      Declaration return_declaration;
      ParameterDeclaration result_param = Utils.getResultParameter(method);
      if (result_param != null) return_declaration = result_param;
      else return_declaration = method;
      NativeTypeTranslator native_translator =
          new NativeTypeTranslator(type_map, return_declaration);
      result_type.accept(native_translator);
      writer.print(native_translator.getSignature() + " " + Utils.RESULT_VAR_NAME);
      if (result_param != null) {
        writer.println(";");
        writer.print("\t");
      } else writer.print(" = ");
    }
    writer.print((alt_annotation == null ? method.getSimpleName() : alt_annotation.value()) + "(");
    generateCallParameters(writer, type_map, method.getParameters());
    writer.print(")");
    writer.println(";");
    generateStringDeallocations(writer, method.getParameters());
    if (!result_type.equals(env.getTypeUtils().getVoidType())) {
      writer.print("\treturn ");
      Class java_result_type = Utils.getJavaType(result_type);
      if (Buffer.class.isAssignableFrom(java_result_type)) {
        if (method.getAnnotation(CachedResult.class) != null)
          writer.print("safeNewBufferCached(env, ");
        else writer.print("safeNewBuffer(env, ");
      } else if (String.class.equals(java_result_type)) {
        writer.print("NewStringNativeUnsigned(env, ");
      } else if (method.getAnnotation(GLpointer.class) != null) {
        writer.print("(intptr_t)");
      }
      writer.print(Utils.RESULT_VAR_NAME);
      if (Buffer.class.isAssignableFrom(java_result_type)) {
        writer.print(", ");
        if (method.getAnnotation(CachedResult.class) != null
            && method.getAnnotation(CachedResult.class).isRange())
          Utils.printExtraCallArguments(
              writer, method, method.getAnnotation(AutoResultSize.class).value());
        else Utils.printExtraCallArguments(writer, method, Utils.RESULT_SIZE_NAME);
      }
      if (Buffer.class.isAssignableFrom(java_result_type) || String.class.equals(java_result_type))
        writer.print(")");
      writer.println(";");
    }
    writer.println("}");
    writer.println();
  }