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* The Universal Permissive License (UPL), Version 1.0
*
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* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
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* the Larger Works (as defined below), to deal in both
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* (a) the Software, and
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* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
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* Software and the Larger Work(s), and to sublicense the foregoing rights on
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package org.graalvm.wasm;
import com.oracle.truffle.api.TruffleLanguage;
import com.oracle.truffle.api.interop.InteropLibrary;
import com.oracle.truffle.api.interop.TruffleObject;
import com.oracle.truffle.api.interop.UnsupportedMessageException;
import com.oracle.truffle.api.library.ExportLibrary;
import com.oracle.truffle.api.library.ExportMessage;
import org.graalvm.wasm.exception.Failure;
import org.graalvm.wasm.exception.WasmException;
@ExportLibrary(InteropLibrary.class)
@SuppressWarnings({"unused", "static-method"})
public class WasmType implements TruffleObject {
public static final byte VOID_TYPE = 0x40;
public static final byte I32_TYPE = 0x7F;
public static final byte I64_TYPE = 0x7E;
public static final byte F32_TYPE = 0x7D;
public static final byte F64_TYPE = 0x7C;
public static final WasmType VOID = new WasmType("void");
public static String toString(int valueType) {
switch (valueType) {
case I32_TYPE:
return "i32";
case I64_TYPE:
return "i64";
case F32_TYPE:
return "f32";
case F64_TYPE:
return "f64";
default:
throw WasmException.create(Failure.UNSPECIFIED_INTERNAL, null, "Unknown value type: 0x" + Integer.toHexString(valueType));
}
}
private final String name;
public WasmType(String name) {
this.name = name;
}
@ExportMessage
boolean hasLanguage() {
return true;
}
@ExportMessage
Class<? extends TruffleLanguage<?>> getLanguage() {
return WasmLanguage.class;
}
@ExportMessage
boolean isMetaObject() {
return true;
}
@ExportMessage(name = "getMetaQualifiedName")
@ExportMessage(name = "getMetaSimpleName")
public Object getName() {
return name;
}
@ExportMessage(name = "toDisplayString")
Object toDisplayString(@SuppressWarnings("unused") boolean allowSideEffects) {
return toString();
}
@ExportMessage
final boolean isMetaInstance(Object instance) throws UnsupportedMessageException {
return instance instanceof WasmVoidResult;
}
@Override
public String toString() {
return "wasm-value-type[" + name + "]";
}
}