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Add CAD3 Extension values 0xE0 - 0xEF
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convex-core/src/main/java/convex/core/data/AExtensionValue.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| package convex.core.data; | ||
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| import convex.core.data.impl.LongBlob; | ||
| import convex.core.data.prim.CVMLong; | ||
| import convex.core.util.ErrorMessages; | ||
| import convex.core.util.Utils; | ||
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| /** | ||
| * Abstract base class for 8-byte bloblike extension Values such as Address and CAD Extension Values | ||
| */ | ||
| public abstract class AExtensionValue extends ABlobLike<CVMLong> { | ||
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| /** | ||
| * Length of an Address in bytes (when considered as a Blob) | ||
| */ | ||
| static final int BYTE_LENGTH = 8; | ||
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| @Override | ||
| public final long count() { | ||
| return BYTE_LENGTH; | ||
| } | ||
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| @Override | ||
| public int estimatedEncodingSize() { | ||
| // tag VLC bytes | ||
| return 1 + Format.MAX_VLQ_COUNT_LENGTH; | ||
| } | ||
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| @Override | ||
| public Blob slice(long start, long end) { | ||
| return toFlatBlob().slice(start,end); | ||
| } | ||
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| @Override | ||
| public ABlob toBlob() { | ||
| return LongBlob.create(longValue()); | ||
| } | ||
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| protected static void checkIndex(long i) { | ||
| if ((i < 0) || (i >= BYTE_LENGTH)) throw new IndexOutOfBoundsException(ErrorMessages.badIndex(i)); | ||
| } | ||
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| @Override | ||
| public Blob toFlatBlob() { | ||
| byte[] bs=new byte[BYTE_LENGTH]; | ||
| getBytes(bs,0); | ||
| return Blob.wrap(bs); | ||
| } | ||
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| @Override | ||
| protected ACell toCanonical() { | ||
| // Always canonical | ||
| return this; | ||
| } | ||
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| @Override | ||
| public long hexMatch(ABlobLike<?> b, long start, long length) { | ||
| for (int i=0; i<length; i++) { | ||
| int c=b.getHexDigit(start+i); | ||
| if (c!=getHexDigit(start+i)) return i; | ||
| } | ||
| return length; | ||
| } | ||
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| @Override | ||
| public boolean equalsBytes(ABlob b) { | ||
| if (b.count()!=BYTE_LENGTH) return false; | ||
| return b.longValue()==longValue(); | ||
| } | ||
|
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| protected int compareTo(long bvalue) { | ||
| return Long.compareUnsigned(longValue(), bvalue); | ||
| } | ||
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| @Override | ||
| public int compareTo(ABlobLike<?> b) { | ||
| if (b.count()==BYTE_LENGTH) { | ||
| return compareTo(b.longValue()); | ||
| } else { | ||
| // safe because must be a different type | ||
| return -b.compareTo(this); | ||
| } | ||
| } | ||
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| @Override | ||
| public AExtensionValue empty() { | ||
| // There is no empty extension value | ||
| return null; | ||
| } | ||
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| @Override | ||
| protected final long calcMemorySize() { | ||
| // always embedded and no child Refs, so memory size == 0 | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public boolean equals(ACell a) { | ||
| if (a instanceof AExtensionValue) return equals((AExtensionValue) a); | ||
| return false; | ||
| } | ||
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| protected boolean equals(AExtensionValue a) { | ||
| if (getTag()!=a.getTag()) return false; | ||
| return longValue()==a.longValue(); | ||
| } | ||
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| @Override | ||
| public CVMLong get(long i) { | ||
| checkIndex(i); | ||
| return CVMLong.create(Utils.longByteAt(longValue(),i)); | ||
| } | ||
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| @Override | ||
| public <R extends ACell> Ref<R> getRef(int i) { | ||
| throw new IndexOutOfBoundsException(i); | ||
| } | ||
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| @Override | ||
| public ACell updateRefs(IRefFunction func) { | ||
| return this; | ||
| } | ||
|
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| @Override | ||
| public final int getRefCount() { | ||
| // No Refs | ||
| return 0; | ||
| } | ||
| } |
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