.class public Landroid/support/v7/util/DiffUtil; .super Ljava/lang/Object; .source "DiffUtil.java" # annotations .annotation system Ldalvik/annotation/MemberClasses; value = { Landroid/support/v7/util/DiffUtil$PostponedUpdate;, Landroid/support/v7/util/DiffUtil$DiffResult;, Landroid/support/v7/util/DiffUtil$Range;, Landroid/support/v7/util/DiffUtil$Snake;, Landroid/support/v7/util/DiffUtil$ItemCallback;, Landroid/support/v7/util/DiffUtil$Callback; } .end annotation # static fields .field private static final a:Ljava/util/Comparator; .annotation system Ldalvik/annotation/Signature; value = { "Ljava/util/Comparator<", "Landroid/support/v7/util/DiffUtil$Snake;", ">;" } .end annotation .end field # direct methods .method static constructor ()V .locals 1 .line 77 new-instance v0, Landroid/support/v7/util/DiffUtil$1; invoke-direct {v0}, Landroid/support/v7/util/DiffUtil$1;->()V sput-object v0, Landroid/support/v7/util/DiffUtil;->a:Ljava/util/Comparator; return-void .end method .method private constructor ()V .locals 0 .line 73 invoke-direct {p0}, Ljava/lang/Object;->()V return-void .end method .method public static a(Landroid/support/v7/util/DiffUtil$Callback;)Landroid/support/v7/util/DiffUtil$DiffResult; .locals 1 const/4 v0, 0x1 .line 97 invoke-static {p0, v0}, Landroid/support/v7/util/DiffUtil;->a(Landroid/support/v7/util/DiffUtil$Callback;Z)Landroid/support/v7/util/DiffUtil$DiffResult; move-result-object p0 return-object p0 .end method .method public static a(Landroid/support/v7/util/DiffUtil$Callback;Z)Landroid/support/v7/util/DiffUtil$DiffResult; .locals 15 .line 114 invoke-virtual {p0}, Landroid/support/v7/util/DiffUtil$Callback;->a()I move-result v0 .line 115 invoke-virtual {p0}, Landroid/support/v7/util/DiffUtil$Callback;->b()I move-result v1 .line 117 new-instance v4, Ljava/util/ArrayList; invoke-direct {v4}, Ljava/util/ArrayList;->()V .line 121 new-instance v2, Ljava/util/ArrayList; invoke-direct {v2}, Ljava/util/ArrayList;->()V .line 123 new-instance v3, Landroid/support/v7/util/DiffUtil$Range; const/4 v5, 0x0 invoke-direct {v3, v5, v0, v5, v1}, Landroid/support/v7/util/DiffUtil$Range;->(IIII)V invoke-interface {v2, v3}, Ljava/util/List;->add(Ljava/lang/Object;)Z add-int v3, v0, v1 sub-int/2addr v0, v1 .line 125 invoke-static {v0}, Ljava/lang/Math;->abs(I)I move-result v0 add-int/2addr v0, v3 mul-int/lit8 v1, v0, 0x2 .line 129 new-array v13, v1, [I .line 130 new-array v1, v1, [I .line 133 new-instance v3, Ljava/util/ArrayList; invoke-direct {v3}, Ljava/util/ArrayList;->()V .line 134 :goto_0 invoke-interface {v2}, Ljava/util/List;->isEmpty()Z move-result v5 if-nez v5, :cond_7 .line 135 invoke-interface {v2}, Ljava/util/List;->size()I move-result v5 add-int/lit8 v5, v5, -0x1 invoke-interface {v2, v5}, Ljava/util/List;->remove(I)Ljava/lang/Object; move-result-object v5 move-object v14, v5 check-cast v14, Landroid/support/v7/util/DiffUtil$Range; .line 136 iget v6, v14, Landroid/support/v7/util/DiffUtil$Range;->a:I iget v7, v14, Landroid/support/v7/util/DiffUtil$Range;->b:I iget v8, v14, Landroid/support/v7/util/DiffUtil$Range;->c:I iget v9, v14, Landroid/support/v7/util/DiffUtil$Range;->d:I move-object v5, p0 move-object v10, v13 move-object v11, v1 move v12, v0 invoke-static/range {v5 .. v12}, Landroid/support/v7/util/DiffUtil;->a(Landroid/support/v7/util/DiffUtil$Callback;IIII[I[II)Landroid/support/v7/util/DiffUtil$Snake; move-result-object v5 if-eqz v5, :cond_6 .line 139 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->c:I if-lez v6, :cond_0 .line 140 invoke-interface {v4, v5}, Ljava/util/List;->add(Ljava/lang/Object;)Z .line 143 :cond_0 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I iget v7, v14, Landroid/support/v7/util/DiffUtil$Range;->a:I add-int/2addr v6, v7 iput v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I .line 144 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I iget v7, v14, Landroid/support/v7/util/DiffUtil$Range;->c:I add-int/2addr v6, v7 iput v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I .line 147 invoke-interface {v3}, Ljava/util/List;->isEmpty()Z move-result v6 if-eqz v6, :cond_1 new-instance v6, Landroid/support/v7/util/DiffUtil$Range; invoke-direct {v6}, Landroid/support/v7/util/DiffUtil$Range;->()V goto :goto_1 .line 148 :cond_1 invoke-interface {v3}, Ljava/util/List;->size()I move-result v6 add-int/lit8 v6, v6, -0x1 .line 147 invoke-interface {v3, v6}, Ljava/util/List;->remove(I)Ljava/lang/Object; move-result-object v6 check-cast v6, Landroid/support/v7/util/DiffUtil$Range; .line 149 :goto_1 iget v7, v14, Landroid/support/v7/util/DiffUtil$Range;->a:I iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->a:I .line 150 iget v7, v14, Landroid/support/v7/util/DiffUtil$Range;->c:I iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->c:I .line 151 iget-boolean v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->e:Z if-eqz v7, :cond_2 .line 152 iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->b:I .line 153 iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->d:I goto :goto_2 .line 155 :cond_2 iget-boolean v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->d:Z if-eqz v7, :cond_3 .line 156 iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I add-int/lit8 v7, v7, -0x1 iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->b:I .line 157 iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->d:I goto :goto_2 .line 159 :cond_3 iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->b:I .line 160 iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I add-int/lit8 v7, v7, -0x1 iput v7, v6, Landroid/support/v7/util/DiffUtil$Range;->d:I .line 163 :goto_2 invoke-interface {v2, v6}, Ljava/util/List;->add(Ljava/lang/Object;)Z .line 168 iget-boolean v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->e:Z if-eqz v6, :cond_5 .line 169 iget-boolean v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->d:Z if-eqz v6, :cond_4 .line 170 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->c:I add-int/2addr v6, v7 add-int/lit8 v6, v6, 0x1 iput v6, v14, Landroid/support/v7/util/DiffUtil$Range;->a:I .line 171 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I iget v5, v5, Landroid/support/v7/util/DiffUtil$Snake;->c:I add-int/2addr v6, v5 iput v6, v14, Landroid/support/v7/util/DiffUtil$Range;->c:I goto :goto_3 .line 173 :cond_4 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->c:I add-int/2addr v6, v7 iput v6, v14, Landroid/support/v7/util/DiffUtil$Range;->a:I .line 174 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I iget v5, v5, Landroid/support/v7/util/DiffUtil$Snake;->c:I add-int/2addr v6, v5 add-int/lit8 v6, v6, 0x1 iput v6, v14, Landroid/support/v7/util/DiffUtil$Range;->c:I goto :goto_3 .line 177 :cond_5 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->a:I iget v7, v5, Landroid/support/v7/util/DiffUtil$Snake;->c:I add-int/2addr v6, v7 iput v6, v14, Landroid/support/v7/util/DiffUtil$Range;->a:I .line 178 iget v6, v5, Landroid/support/v7/util/DiffUtil$Snake;->b:I iget v5, v5, Landroid/support/v7/util/DiffUtil$Snake;->c:I add-int/2addr v6, v5 iput v6, v14, Landroid/support/v7/util/DiffUtil$Range;->c:I .line 180 :goto_3 invoke-interface {v2, v14}, Ljava/util/List;->add(Ljava/lang/Object;)Z goto/16 :goto_0 .line 182 :cond_6 invoke-interface {v3, v14}, Ljava/util/List;->add(Ljava/lang/Object;)Z goto/16 :goto_0 .line 187 :cond_7 sget-object v0, Landroid/support/v7/util/DiffUtil;->a:Ljava/util/Comparator; invoke-static {v4, v0}, Ljava/util/Collections;->sort(Ljava/util/List;Ljava/util/Comparator;)V .line 189 new-instance v0, Landroid/support/v7/util/DiffUtil$DiffResult; move-object v2, v0 move-object v3, p0 move-object v5, v13 move-object v6, v1 move/from16 v7, p1 invoke-direct/range {v2 .. v7}, Landroid/support/v7/util/DiffUtil$DiffResult;->(Landroid/support/v7/util/DiffUtil$Callback;Ljava/util/List;[I[IZ)V return-object v0 .end method .method private static a(Landroid/support/v7/util/DiffUtil$Callback;IIII[I[II)Landroid/support/v7/util/DiffUtil$Snake; .locals 21 move-object/from16 v0, p0 move-object/from16 v3, p5 move-object/from16 v4, p6 sub-int v5, p2, p1 sub-int v6, p4, p3 const/4 v7, 0x1 if-lt v5, v7, :cond_f if-ge v6, v7, :cond_0 goto/16 :goto_a :cond_0 sub-int v8, v5, v6 add-int v9, v5, v6 add-int/2addr v9, v7 .line 203 div-int/lit8 v9, v9, 0x2 sub-int v10, p7, v9 sub-int/2addr v10, v7 add-int v11, p7, v9 add-int/2addr v11, v7 const/4 v12, 0x0 .line 204 invoke-static {v3, v10, v11, v12}, Ljava/util/Arrays;->fill([IIII)V add-int/2addr v10, v8 add-int/2addr v11, v8 .line 205 invoke-static {v4, v10, v11, v5}, Ljava/util/Arrays;->fill([IIII)V .line 206 rem-int/lit8 v10, v8, 0x2 if-eqz v10, :cond_1 const/4 v10, 0x1 goto :goto_0 :cond_1 const/4 v10, 0x0 :goto_0 const/4 v11, 0x0 :goto_1 if-gt v11, v9, :cond_e neg-int v13, v11 move v14, v13 :goto_2 if-gt v14, v11, :cond_7 if-eq v14, v13, :cond_3 if-eq v14, v11, :cond_2 add-int v15, p7, v14 add-int/lit8 v16, v15, -0x1 .line 213 aget v12, v3, v16 add-int/2addr v15, v7 aget v7, v3, v15 if-ge v12, v7, :cond_2 goto :goto_3 :cond_2 add-int v7, p7, v14 const/16 v17, 0x1 add-int/lit8 v7, v7, -0x1 .line 217 aget v7, v3, v7 add-int/lit8 v7, v7, 0x1 const/4 v12, 0x1 goto :goto_4 :cond_3 :goto_3 const/16 v17, 0x1 add-int v7, p7, v14 add-int/lit8 v7, v7, 0x1 .line 214 aget v7, v3, v7 const/4 v12, 0x0 :goto_4 sub-int v15, v7, v14 move/from16 v18, v9 move v9, v15 :goto_5 if-ge v7, v5, :cond_4 if-ge v9, v6, :cond_4 move/from16 v19, v5 add-int v5, p1, v7 move/from16 v20, v6 add-int v6, p3, v9 .line 224 invoke-virtual {v0, v5, v6}, Landroid/support/v7/util/DiffUtil$Callback;->a(II)Z move-result v5 if-eqz v5, :cond_5 add-int/lit8 v7, v7, 0x1 add-int/lit8 v9, v9, 0x1 move/from16 v5, v19 move/from16 v6, v20 goto :goto_5 :cond_4 move/from16 v19, v5 move/from16 v20, v6 :cond_5 add-int v5, p7, v14 .line 228 aput v7, v3, v5 if-eqz v10, :cond_6 sub-int v6, v8, v11 const/4 v7, 0x1 add-int/2addr v6, v7 if-lt v14, v6, :cond_6 add-int v6, v8, v11 sub-int/2addr v6, v7 if-gt v14, v6, :cond_6 .line 230 aget v6, v3, v5 aget v7, v4, v5 if-lt v6, v7, :cond_6 .line 231 new-instance v0, Landroid/support/v7/util/DiffUtil$Snake; invoke-direct {v0}, Landroid/support/v7/util/DiffUtil$Snake;->()V .line 232 aget v1, v4, v5 iput v1, v0, Landroid/support/v7/util/DiffUtil$Snake;->a:I .line 233 iget v1, v0, Landroid/support/v7/util/DiffUtil$Snake;->a:I sub-int/2addr v1, v14 iput v1, v0, Landroid/support/v7/util/DiffUtil$Snake;->b:I .line 234 aget v1, v3, v5 aget v2, v4, v5 sub-int/2addr v1, v2 iput v1, v0, Landroid/support/v7/util/DiffUtil$Snake;->c:I .line 235 iput-boolean v12, v0, Landroid/support/v7/util/DiffUtil$Snake;->d:Z const/4 v5, 0x0 .line 236 iput-boolean v5, v0, Landroid/support/v7/util/DiffUtil$Snake;->e:Z return-object v0 :cond_6 const/4 v5, 0x0 add-int/lit8 v14, v14, 0x2 move/from16 v9, v18 move/from16 v5, v19 move/from16 v6, v20 const/4 v7, 0x1 const/4 v12, 0x0 goto/16 :goto_2 :cond_7 move/from16 v19, v5 move/from16 v20, v6 move/from16 v18, v9 const/4 v5, 0x0 move v6, v13 :goto_6 if-gt v6, v11, :cond_d add-int v7, v6, v8 add-int v9, v11, v8 if-eq v7, v9, :cond_a add-int v9, v13, v8 if-eq v7, v9, :cond_8 add-int v9, p7, v7 add-int/lit8 v12, v9, -0x1 .line 246 aget v12, v4, v12 const/16 v17, 0x1 add-int/lit8 v9, v9, 0x1 aget v9, v4, v9 if-ge v12, v9, :cond_9 goto :goto_7 :cond_8 const/16 v17, 0x1 :cond_9 add-int v9, p7, v7 add-int/lit8 v9, v9, 0x1 .line 251 aget v9, v4, v9 add-int/lit8 v9, v9, -0x1 const/4 v12, 0x1 goto :goto_8 :cond_a const/16 v17, 0x1 :goto_7 add-int v9, p7, v7 add-int/lit8 v9, v9, -0x1 .line 248 aget v9, v4, v9 const/4 v12, 0x0 :goto_8 sub-int v14, v9, v7 :goto_9 if-lez v9, :cond_b if-lez v14, :cond_b add-int v15, p1, v9 add-int/lit8 v5, v15, -0x1 add-int v15, p3, v14 add-int/lit8 v1, v15, -0x1 .line 259 invoke-virtual {v0, v5, v1}, Landroid/support/v7/util/DiffUtil$Callback;->a(II)Z move-result v1 if-eqz v1, :cond_b add-int/lit8 v9, v9, -0x1 add-int/lit8 v14, v14, -0x1 const/4 v5, 0x0 const/16 v17, 0x1 goto :goto_9 :cond_b add-int v1, p7, v7 .line 263 aput v9, v4, v1 if-nez v10, :cond_c if-lt v7, v13, :cond_c if-gt v7, v11, :cond_c .line 265 aget v5, v3, v1 aget v9, v4, v1 if-lt v5, v9, :cond_c .line 266 new-instance v0, Landroid/support/v7/util/DiffUtil$Snake; invoke-direct {v0}, Landroid/support/v7/util/DiffUtil$Snake;->()V .line 267 aget v2, v4, v1 iput v2, v0, Landroid/support/v7/util/DiffUtil$Snake;->a:I .line 268 iget v2, v0, Landroid/support/v7/util/DiffUtil$Snake;->a:I sub-int/2addr v2, v7 iput v2, v0, Landroid/support/v7/util/DiffUtil$Snake;->b:I .line 269 aget v2, v3, v1 aget v1, v4, v1 sub-int/2addr v2, v1 iput v2, v0, Landroid/support/v7/util/DiffUtil$Snake;->c:I .line 271 iput-boolean v12, v0, Landroid/support/v7/util/DiffUtil$Snake;->d:Z const/4 v1, 0x1 .line 272 iput-boolean v1, v0, Landroid/support/v7/util/DiffUtil$Snake;->e:Z return-object v0 :cond_c const/4 v1, 0x1 add-int/lit8 v6, v6, 0x2 const/4 v5, 0x0 goto :goto_6 :cond_d const/4 v1, 0x1 add-int/lit8 v11, v11, 0x1 move/from16 v9, v18 move/from16 v5, v19 move/from16 v6, v20 const/4 v7, 0x1 const/4 v12, 0x0 goto/16 :goto_1 .line 278 :cond_e new-instance v0, Ljava/lang/IllegalStateException; const-string v1, "DiffUtil hit an unexpected case while trying to calculate the optimal path. Please make sure your data is not changing during the diff calculation." invoke-direct {v0, v1}, Ljava/lang/IllegalStateException;->(Ljava/lang/String;)V throw v0 :cond_f :goto_a const/4 v0, 0x0 return-object v0 .end method