Implement static hashcode functions for scalar types (#791)

MobiVM · Jun 13, 2024 · e6b0b4f · e6b0b4f
1 parent 56914f5
commit e6b0b4f
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Showing 5 changed files with 21 additions and 0 deletions.
diff --git a/compiler/rt/libcore/luni/src/main/java/java/lang/Double.java b/compiler/rt/libcore/luni/src/main/java/java/lang/Double.java
@@ -221,6 +221,11 @@ public int hashCode() {
         return (int) (v ^ (v >>> 32));
     }
 
+    public static int hashCode(double value) {
+        long v = doubleToLongBits(value);
+        return (int) (v ^ (v >>> 32));
+    }
+
     @Override
     public int intValue() {
         return (int) value;

diff --git a/compiler/rt/libcore/luni/src/main/java/java/lang/Float.java b/compiler/rt/libcore/luni/src/main/java/java/lang/Float.java
@@ -224,6 +224,10 @@ public int hashCode() {
         return floatToIntBits(value);
     }
 
+    public static int hashCode(float value) {
+        return floatToIntBits(value);
+    }
+
     /**
      * Returns the <a href="http://en.wikipedia.org/wiki/IEEE_754-1985">IEEE 754</a>
      * single precision float corresponding to the given {@code bits}.

diff --git a/compiler/rt/libcore/luni/src/main/java/java/lang/Integer.java b/compiler/rt/libcore/luni/src/main/java/java/lang/Integer.java
@@ -302,6 +302,10 @@ public int hashCode() {
         return value;
     }
 
+    public static int hashCode(int value) {
+        return value;
+    }
+
     /**
      * Gets the primitive value of this int.
      *

diff --git a/compiler/rt/libcore/luni/src/main/java/java/lang/Long.java b/compiler/rt/libcore/luni/src/main/java/java/lang/Long.java
@@ -289,6 +289,10 @@ public int hashCode() {
         return (int) (value ^ (value >>> 32));
     }
 
+    public static int hashCode(long value) {
+        return (int) (value ^ (value >>> 32));
+    }
+
     @Override
     public int intValue() {
         return (int) value;

diff --git a/compiler/rt/libcore/luni/src/main/java/java/lang/Short.java b/compiler/rt/libcore/luni/src/main/java/java/lang/Short.java
@@ -169,6 +169,10 @@ public int hashCode() {
         return value;
     }
 
+    public static int hashCode(short value) {
+        return value;
+    }
+
     @Override
     public int intValue() {
         return value;