RlpEncoder.smali

.class public Lorg/web3j/rlp/RlpEncoder;
.super Ljava/lang/Object;
.source "RlpEncoder.java"


# static fields
.field private static final LIST_OFFSET:I = 0xc0

.field private static final STRING_OFFSET:I = 0x80


# direct methods
.method public constructor <init>()V
    .registers 1

    .prologue
    .line 12
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method private static concat([B[B)[B
    .registers 6

    .prologue
    .line 87
    array-length v0, p0

    array-length v1, p1

    add-int/2addr v0, v1

    invoke-static {p0, v0}, Ljava/util/Arrays;->copyOf([BI)[B

    move-result-object v0

    .line 88
    const/4 v1, 0x0

    array-length v2, p0

    array-length v3, p1

    invoke-static {p1, v1, v0, v2, v3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 89
    return-object v0
.end method

.method public static encode(Lorg/web3j/rlp/RlpType;)[B
    .registers 2

    .prologue
    .line 18
    instance-of v0, p0, Lorg/web3j/rlp/RlpString;

    if-eqz v0, :cond_b

    .line 19
    check-cast p0, Lorg/web3j/rlp/RlpString;

    invoke-static {p0}, Lorg/web3j/rlp/RlpEncoder;->encodeString(Lorg/web3j/rlp/RlpString;)[B

    move-result-object v0

    .line 21
    :goto_a
    return-object v0

    :cond_b
    check-cast p0, Lorg/web3j/rlp/RlpList;

    invoke-static {p0}, Lorg/web3j/rlp/RlpEncoder;->encodeList(Lorg/web3j/rlp/RlpList;)[B

    move-result-object v0

    goto :goto_a
.end method

.method private static encode([BI)[B
    .registers 8

    .prologue
    const/4 v5, 0x1

    const/4 v4, 0x0

    .line 26
    array-length v0, p0

    if-ne v0, v5, :cond_14

    const/16 v0, 0x80

    if-ne p1, v0, :cond_14

    aget-byte v0, p0, v4

    if-ltz v0, :cond_14

    aget-byte v0, p0, v4

    const/16 v1, 0x7f

    if-gt v0, v1, :cond_14

    .line 44
    :goto_13
    return-object p0

    .line 31
    :cond_14
    array-length v0, p0

    const/16 v1, 0x37

    if-ge v0, v1, :cond_29

    .line 32
    array-length v0, p0

    add-int/lit8 v0, v0, 0x1

    new-array v0, v0, [B

    .line 33
    array-length v1, p0

    add-int/2addr v1, p1

    int-to-byte v1, v1

    aput-byte v1, v0, v4

    .line 34
    array-length v1, p0

    invoke-static {p0, v4, v0, v5, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    move-object p0, v0

    .line 35
    goto :goto_13

    .line 37
    :cond_29
    array-length v0, p0

    invoke-static {v0}, Lorg/web3j/rlp/RlpEncoder;->toMinimalByteArray(I)[B

    move-result-object v1

    .line 38
    array-length v0, p0

    array-length v2, v1

    add-int/2addr v0, v2

    add-int/lit8 v0, v0, 0x1

    new-array v0, v0, [B

    .line 40
    add-int/lit8 v2, p1, 0x37

    array-length v3, v1

    add-int/2addr v2, v3

    int-to-byte v2, v2

    aput-byte v2, v0, v4

    .line 41
    array-length v2, v1

    invoke-static {v1, v4, v0, v5, v2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 42
    array-length v1, v1

    add-int/lit8 v1, v1, 0x1

    array-length v2, p0

    invoke-static {p0, v4, v0, v1, v2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    move-object p0, v0

    .line 44
    goto :goto_13
.end method

.method static encodeList(Lorg/web3j/rlp/RlpList;)[B
    .registers 5

    .prologue
    const/16 v3, 0xc0

    const/4 v2, 0x0

    .line 74
    invoke-virtual {p0}, Lorg/web3j/rlp/RlpList;->getValues()Ljava/util/List;

    move-result-object v1

    .line 75
    invoke-interface {v1}, Ljava/util/List;->isEmpty()Z

    move-result v0

    if-eqz v0, :cond_14

    .line 76
    new-array v0, v2, [B

    invoke-static {v0, v3}, Lorg/web3j/rlp/RlpEncoder;->encode([BI)[B

    move-result-object v0

    .line 82
    :goto_13
    return-object v0

    .line 78
    :cond_14
    new-array v0, v2, [B

    .line 79
    invoke-interface {v1}, Ljava/util/List;->iterator()Ljava/util/Iterator;

    move-result-object v2

    move-object v1, v0

    :goto_1b
    invoke-interface {v2}, Ljava/util/Iterator;->hasNext()Z

    move-result v0

    if-eqz v0, :cond_31

    invoke-interface {v2}, Ljava/util/Iterator;->next()Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Lorg/web3j/rlp/RlpType;

    .line 80
    invoke-static {v0}, Lorg/web3j/rlp/RlpEncoder;->encode(Lorg/web3j/rlp/RlpType;)[B

    move-result-object v0

    invoke-static {v1, v0}, Lorg/web3j/rlp/RlpEncoder;->concat([B[B)[B

    move-result-object v0

    move-object v1, v0

    .line 81
    goto :goto_1b

    .line 82
    :cond_31
    invoke-static {v1, v3}, Lorg/web3j/rlp/RlpEncoder;->encode([BI)[B

    move-result-object v0

    goto :goto_13
.end method

.method static encodeString(Lorg/web3j/rlp/RlpString;)[B
    .registers 3

    .prologue
    .line 49
    invoke-virtual {p0}, Lorg/web3j/rlp/RlpString;->getBytes()[B

    move-result-object v0

    const/16 v1, 0x80

    invoke-static {v0, v1}, Lorg/web3j/rlp/RlpEncoder;->encode([BI)[B

    move-result-object v0

    return-object v0
.end method

.method private static toByteArray(I)[B
    .registers 4

    .prologue
    .line 65
    const/4 v0, 0x4

    new-array v0, v0, [B

    const/4 v1, 0x0

    shr-int/lit8 v2, p0, 0x18

    aput-byte v2, v0, v1

    const/4 v1, 0x1

    shr-int/lit8 v2, p0, 0x10

    int-to-byte v2, v2

    aput-byte v2, v0, v1

    const/4 v1, 0x2

    shr-int/lit8 v2, p0, 0x8

    int-to-byte v2, v2

    aput-byte v2, v0, v1

    const/4 v1, 0x3

    int-to-byte v2, p0

    aput-byte v2, v0, v1

    return-object v0
.end method

.method private static toMinimalByteArray(I)[B
    .registers 5

    .prologue
    const/4 v1, 0x0

    .line 53
    invoke-static {p0}, Lorg/web3j/rlp/RlpEncoder;->toByteArray(I)[B

    move-result-object v2

    move v0, v1

    .line 55
    :goto_6
    array-length v3, v2

    if-ge v0, v3, :cond_16

    .line 56
    aget-byte v3, v2, v0

    if-eqz v3, :cond_13

    .line 57
    array-length v1, v2

    invoke-static {v2, v0, v1}, Ljava/util/Arrays;->copyOfRange([BII)[B

    move-result-object v0

    .line 61
    :goto_12
    return-object v0

    .line 55
    :cond_13
    add-int/lit8 v0, v0, 0x1

    goto :goto_6

    .line 61
    :cond_16
    new-array v0, v1, [B

    goto :goto_12
.end method