src/org/nutz/repo/org/objectweb/asm/ClassWriter.java
Item newFloat(final float value) {
        key.set(value);
        Item result = get(key);
        if (result == null) {
            pool.putByte(FLOAT).putInt(key.intVal);
            result = new Item(index++, key);
            put(result);
        }
        return result;
    }
Item newFloat(final float value) {
        key.set(value);
        Item result = get(key);
        if (result == null) {
            pool.putByte(FLOAT).putInt(key.intVal);
            result = new Item(index++, key);
            put(result);
        }
        return result;
    }
Adds a float to the constant pool of the class being build. Does nothing
if the constant pool already contains a similar item.

@param value
the float value.
@return a new or already existing float item.