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148
src/main/java/overrun/marshal/gen/processor/ArgumentProcessor.java
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| @@ -0,0 +1,148 @@ | ||
| /* | ||
| * MIT License | ||
| * | ||
| * Copyright (c) 2024 Overrun Organization | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in all | ||
| * copies or substantial portions of the Software. | ||
| */ | ||
|
|
||
| package overrun.marshal.gen.processor; | ||
|
|
||
| import overrun.marshal.gen.Type; | ||
| import overrun.marshal.internal.StringCharset; | ||
|
|
||
| import java.lang.classfile.CodeBuilder; | ||
| import java.lang.constant.MethodTypeDesc; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
||
| import static java.lang.constant.ConstantDescs.CD_boolean; | ||
| import static overrun.marshal.internal.Constants.*; | ||
|
|
||
| /** | ||
| * Method argument processor | ||
| * | ||
| * @author squid233 | ||
| * @since 0.1.0 | ||
| */ | ||
| public final class ArgumentProcessor implements Processor<ProcessorType, ArgumentProcessorContext> { | ||
| private static final ArgumentProcessor INSTANCE = new ArgumentProcessor(); | ||
| private final List<Processor<ProcessorType, ArgumentProcessorContext>> list = new ArrayList<>(0); | ||
|
|
||
| private ArgumentProcessor() { | ||
| } | ||
|
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| @SuppressWarnings("preview") | ||
| public boolean process(CodeBuilder builder, ProcessorType type, ArgumentProcessorContext context) { | ||
| switch (type) { | ||
| case ProcessorType.Value value -> { | ||
| if (value == ProcessorType.Value.BOOLEAN && | ||
| context.convert() != null) { | ||
| final Type convertType = context.convert().value(); | ||
| builder.loadInstruction( | ||
| value.typeKind(), | ||
| context.parameterSlot() | ||
| ).invokestatic(CD_Marshal, | ||
| marshalFromBooleanMethod(convertType), | ||
| MethodTypeDesc.of(convertType.classDesc(), CD_boolean)); | ||
| } else { | ||
| builder.loadInstruction( | ||
| value.typeKind().asLoadable(), | ||
| context.parameterSlot() | ||
| ); | ||
| } | ||
| } | ||
| case ProcessorType.Allocator _ -> builder.aload(context.parameterSlot()); | ||
| case ProcessorType.Str _ -> { | ||
| builder.aload(context.allocatorSlot()) | ||
| .aload(context.parameterSlot()); | ||
| if (StringCharset.getCharset(builder, context.parameter())) { | ||
| builder.invokestatic(CD_Marshal, | ||
| "marshal", | ||
| MTD_MemorySegment_SegmentAllocator_String_Charset); | ||
| } else { | ||
| builder.invokestatic(CD_Marshal, | ||
| "marshal", | ||
| MTD_MemorySegment_SegmentAllocator_String); | ||
| } | ||
| } | ||
| case ProcessorType.Addr _, ProcessorType.CEnum _ -> builder | ||
| .aload(context.parameterSlot()) | ||
| .invokestatic(CD_Marshal, | ||
| "marshal", | ||
| MethodTypeDesc.of(type.downcallClassDesc(), type.marshalClassDesc())); | ||
| case ProcessorType.Upcall _ -> builder | ||
| .aload(context.allocatorSlot()) | ||
| .checkcast(CD_Arena) | ||
| .aload(context.parameterSlot()) | ||
| .invokestatic(CD_Marshal, | ||
| "marshal", | ||
| MTD_MemorySegment_Arena_Upcall); | ||
| case ProcessorType.Array array -> { | ||
| final ProcessorType componentType = array.componentType(); | ||
| final boolean isStringArray = componentType instanceof ProcessorType.Str; | ||
| final boolean isUpcallArray = componentType instanceof ProcessorType.Upcall; | ||
| builder.aload(context.allocatorSlot()); | ||
| if (isUpcallArray) { | ||
| builder.checkcast(CD_Arena); | ||
| } | ||
| builder.aload(context.parameterSlot()); | ||
| if (isStringArray && StringCharset.getCharset(builder, context.parameter())) { | ||
| builder.invokestatic(CD_Marshal, | ||
| "marshal", | ||
| MTD_MemorySegment_SegmentAllocator_StringArray_Charset); | ||
| } else { | ||
| builder.invokestatic(CD_Marshal, | ||
| "marshal", | ||
| MethodTypeDesc.of(CD_MemorySegment, | ||
| isUpcallArray ? CD_Arena : CD_SegmentAllocator, | ||
| array.marshalClassDesc())); | ||
| } | ||
| } | ||
| default -> { | ||
| for (var processor : list) { | ||
| if (!processor.process(builder, type, context)) { | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| /** | ||
| * Registers a processor | ||
| * | ||
| * @param processor the processor | ||
| */ | ||
| public void registerProcessor(Processor<ProcessorType, ArgumentProcessorContext> processor) { | ||
| list.add(processor); | ||
| } | ||
|
|
||
| /** | ||
| * {@return this} | ||
| */ | ||
| public static ArgumentProcessor getInstance() { | ||
| return INSTANCE; | ||
| } | ||
|
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| private static String marshalFromBooleanMethod(Type convertType) { | ||
| return switch (convertType) { | ||
| case CHAR -> "marshalAsChar"; | ||
| case BYTE -> "marshalAsByte"; | ||
| case SHORT -> "marshalAsShort"; | ||
| case INT -> "marshalAsInt"; | ||
| case LONG -> "marshalAsLong"; | ||
| case FLOAT -> "marshalAsFloat"; | ||
| case DOUBLE -> "marshalAsDouble"; | ||
| }; | ||
| } | ||
| } |
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