public static void generateNativeMethodStubs(
AnnotationProcessorEnvironment env,
TypeMap type_map,
PrintWriter writer,
InterfaceDeclaration d,
boolean generate_error_checks,
boolean context_specific) {
for (MethodDeclaration method : d.getMethods()) {
Alternate alt_annotation = method.getAnnotation(Alternate.class);
if (alt_annotation != null && !alt_annotation.nativeAlt()) continue;
generateMethodStub(
env,
type_map,
writer,
Utils.getQualifiedClassName(d),
method,
Mode.NORMAL,
generate_error_checks,
context_specific);
if (Utils.hasMethodBufferObjectParameter(method))
generateMethodStub(
env,
type_map,
writer,
Utils.getQualifiedClassName(d),
method,
Mode.BUFFEROBJECT,
generate_error_checks,
context_specific);
}
}
private static String getPostfixStrippedName(
TypeMap type_map, TypeElement interface_decl, ExecutableElement method) {
StripPostfix strip_annotation = method.getAnnotation(StripPostfix.class);
VariableElement postfix_parameter = Utils.findParameter(method, strip_annotation.value());
String postfix = strip_annotation.postfix();
boolean postfixOverride = !("NULL".equals(postfix) && strip_annotation.hasPostfix());
if (!postfixOverride) {
PostfixTranslator translator = new PostfixTranslator(type_map, postfix_parameter);
postfix_parameter.asType().accept(translator, null);
postfix = translator.getSignature();
} else if (!strip_annotation.hasPostfix()) {
postfix = "";
}
String method_name;
Alternate alt_annotation = method.getAnnotation(Alternate.class);
method_name =
alt_annotation == null || alt_annotation.javaAlt()
? method.getSimpleName().toString()
: alt_annotation.value();
String extension_postfix =
"NULL".equals(strip_annotation.extension())
? getExtensionPostfix(interface_decl)
: strip_annotation.extension();
Matcher matcher =
getPostfixPattern(
postfixOverride
? (postfix + "(?:v)?" + extension_postfix + "$")
: ("(?:" + postfix + "(?:v)?|i(?:64)?_v|v)" + extension_postfix + "$"))
.matcher(method_name);
if (!matcher.find()) {
throw new RuntimeException(
method_name
+ " is specified as being postfix stripped on parameter "
+ postfix_parameter
+ ", but it's postfix is neither '"
+ postfix
+ "' nor 'v'");
}
return method_name.substring(0, matcher.start()) + extension_postfix;
}
/** TODO : fix info multi-type methods print. */
private static void generateMethodJava(
ProcessingEnvironment env,
TypeMap type_map,
PrintWriter writer,
TypeElement interface_decl,
ExecutableElement method,
boolean generate_error_checks,
boolean context_specific) {
writer.println();
if (Utils.isMethodIndirect(generate_error_checks, context_specific, method)) {
if (method.getAnnotation(GenerateAutos.class) != null) {
printMethodWithMultiType(
env,
type_map,
writer,
interface_decl,
method,
TypeInfo.getDefaultTypeInfoMap(method),
Mode.AUTOS,
generate_error_checks,
context_specific);
}
Collection<Map<VariableElement, TypeInfo>> cross_product =
TypeInfo.getTypeInfoCrossProduct(type_map, method);
for (Map<VariableElement, TypeInfo> typeinfos_instance : cross_product) {
printMethodWithMultiType(
env,
type_map,
writer,
interface_decl,
method,
typeinfos_instance,
Mode.NORMAL,
generate_error_checks,
context_specific);
}
}
if (method.getAnnotation(CachedResult.class) != null
&& !method.getAnnotation(CachedResult.class).isRange()) {
printMethodWithMultiType(
env,
type_map,
writer,
interface_decl,
method,
TypeInfo.getDefaultTypeInfoMap(method),
Mode.CACHEDRESULT,
generate_error_checks,
context_specific);
}
Reuse reuse_annotation = method.getAnnotation(Reuse.class);
Alternate alt_annotation = method.getAnnotation(Alternate.class);
if (alt_annotation == null || (alt_annotation.nativeAlt() && !alt_annotation.skipNative())) {
if (alt_annotation != null
&& method.getSimpleName().toString().equals(alt_annotation.value())) {
throw new RuntimeException(
"An alternate function with native code should have a different name than the main function.");
}
if (reuse_annotation == null) {
printJavaNativeStub(
env, writer, method, Mode.NORMAL, generate_error_checks, context_specific);
}
if (Utils.hasMethodBufferObjectParameter(method)) {
printMethodWithMultiType(
env,
type_map,
writer,
interface_decl,
method,
TypeInfo.getDefaultTypeInfoMap(method),
Mode.BUFFEROBJECT,
generate_error_checks,
context_specific);
if (reuse_annotation == null) {
printJavaNativeStub(
env, writer, method, Mode.BUFFEROBJECT, generate_error_checks, context_specific);
}
}
}
}
private static void printMethodWithMultiType(
ProcessingEnvironment env,
TypeMap type_map,
PrintWriter writer,
TypeElement interface_decl,
ExecutableElement method,
Map<VariableElement, TypeInfo> typeinfos_instance,
Mode mode,
boolean generate_error_checks,
boolean context_specific) {
Utils.printDocComment(writer, method, env);
if (method.getAnnotation(Deprecated.class) != null) {
writer.println("\t@Deprecated");
}
if (interface_decl.getAnnotation(Private.class) == null
&& method.getAnnotation(Private.class) == null) {
writer.print("\tpublic static ");
} else {
writer.print("\tstatic ");
}
writer.print(getResultType(method, false));
StripPostfix strip_annotation = method.getAnnotation(StripPostfix.class);
String method_name;
Alternate alt_annotation = method.getAnnotation(Alternate.class);
method_name =
alt_annotation == null || alt_annotation.javaAlt()
? method.getSimpleName().toString()
: alt_annotation.value();
if (strip_annotation != null && mode == Mode.NORMAL) {
method_name = getPostfixStrippedName(type_map, interface_decl, method);
}
writer.print(" " + method_name + "(");
generateParametersJava(writer, method, typeinfos_instance, false, true, mode);
writer.println(") {");
final TypeMirror result_type = Utils.getMethodReturnType(method);
boolean has_result = !result_type.equals(env.getTypeUtils().getNoType(TypeKind.VOID));
final Reuse reuse_annotation = method.getAnnotation(Reuse.class);
if (reuse_annotation != null) {
writer.print("\t\t");
if (has_result || method.getAnnotation(GLreturn.class) != null) {
writer.print("return ");
}
writer.print(
reuse_annotation.value()
+ "."
+ (reuse_annotation.method().length() > 0 ? reuse_annotation.method() : method_name)
+ "(");
generateParametersJava(writer, method, typeinfos_instance, false, false, mode);
writer.println(");\n\t}");
return;
}
if (context_specific) {
type_map.printCapabilitiesInit(writer);
writer.print(
"\t\tlong " + Utils.FUNCTION_POINTER_VAR_NAME + " = " + type_map.getCapabilities() + ".");
writer.println(Utils.getFunctionAddressName(interface_decl, method, true) + ";");
writer.print("\t\tBufferChecks.checkFunctionAddress(");
writer.println(Utils.FUNCTION_POINTER_VAR_NAME + ");");
}
final Code code_annotation = method.getAnnotation(Code.class);
if (code_annotation != null && code_annotation.value().length() > 0) {
writer.println(code_annotation.value());
}
printBufferObjectChecks(writer, method, mode, context_specific);
printParameterChecks(writer, method, typeinfos_instance, mode, generate_error_checks);
printParameterCaching(writer, interface_decl, method, mode, context_specific);
if (code_annotation != null && code_annotation.javaBeforeNative().length() > 0) {
writer.println(code_annotation.javaBeforeNative());
}
writer.print("\t\t");
final PointerWrapper pointer_wrapper_annotation = method.getAnnotation(PointerWrapper.class);
if (has_result) {
writer.print(getResultType(method, false) + " " + Utils.RESULT_VAR_NAME);
if (code_annotation != null && code_annotation.tryBlock()) {
writer.print(" = " + getDefaultResultValue(method));
writer.println(";\n\t\ttry {");
writer.print("\t\t\t" + Utils.RESULT_VAR_NAME);
}
writer.print(" = ");
if (pointer_wrapper_annotation != null) {
if (pointer_wrapper_annotation.factory().length() > 0) {
writer.print(pointer_wrapper_annotation.factory() + "(");
} else {
writer.print("new " + getResultType(method, false) + "(");
}
}
} else if (method.getAnnotation(GLreturn.class) != null) {
has_result = true;
Utils.printGLReturnPre(writer, method, method.getAnnotation(GLreturn.class), type_map);
}
writer.print(Utils.getSimpleNativeMethodName(method, generate_error_checks, context_specific));
if (mode == Mode.BUFFEROBJECT) {
writer.print(Utils.BUFFER_OBJECT_METHOD_POSTFIX);
}
writer.print("(");
boolean first_parameter =
printMethodCallArguments(writer, method, typeinfos_instance, mode, type_map);
if (context_specific) {
if (!first_parameter) {
writer.print(", ");
}
writer.print(Utils.FUNCTION_POINTER_VAR_NAME);
}
if (has_result && pointer_wrapper_annotation != null) {
writer.print(")");
if (pointer_wrapper_annotation.params().length() > 0) {
writer.print(", " + pointer_wrapper_annotation.params());
}
}
writer.println(");");
if (code_annotation != null && code_annotation.javaAfterNative().length() > 0) {
writer.println(code_annotation.javaAfterNative());
}
final String tabs = code_annotation != null && code_annotation.tryBlock() ? "\t\t\t" : "\t\t";
if (generate_error_checks && method.getAnnotation(NoErrorCheck.class) == null) {
type_map.printErrorCheckMethod(writer, method, tabs);
}
// DISABLED: indirect buffer support
// printNondirectParameterCopies(writer, method, mode);
if (has_result) {
if (method.getAnnotation(GLreturn.class) == null) {
if (ByteBuffer.class.equals(Utils.getJavaType(result_type))) {
writer.println(
tabs
+ "return LWJGLUtil.CHECKS && "
+ Utils.RESULT_VAR_NAME
+ " == null ? null : "
+ Utils.RESULT_VAR_NAME
+ ".order(ByteOrder.nativeOrder());"); // safeNewBuffer returns a direct
// ByteBuffer with BIG_ENDIAN order.
} else {
writer.println(tabs + "return " + Utils.RESULT_VAR_NAME + ";");
}
} else {
Utils.printGLReturnPost(writer, method, method.getAnnotation(GLreturn.class), type_map);
}
}
if (code_annotation != null && code_annotation.tryBlock()) {
writer.println("\t\t} finally {");
writer.println(code_annotation.javaFinally());
writer.println("\t\t}");
}
writer.println("\t}");
}
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();
}