private static BytecodeBlock castPrimitiveToPrimitive()

in modules/bytecode/src/main/java/com/facebook/presto/bytecode/expression/CastBytecodeExpression.java [107:279]
173 lines of code
60 McCabe index (conditional complexity)

    private static BytecodeBlock castPrimitiveToPrimitive(BytecodeBlock block, Class<?> sourceType, Class<?> targetType)
    {
        if (sourceType == boolean.class) {
            if (targetType == boolean.class) {
                return block;
            }
        }
        if (sourceType == byte.class) {
            if (targetType == byte.class) {
                return block;
            }
            if (targetType == char.class) {
                return block;
            }
            if (targetType == short.class) {
                return block;
            }
            if (targetType == int.class) {
                return block;
            }
            if (targetType == long.class) {
                return block.append(OpCode.I2L);
            }
            if (targetType == float.class) {
                return block.append(OpCode.I2F);
            }
            if (targetType == double.class) {
                return block.append(OpCode.I2D);
            }
        }
        if (sourceType == char.class) {
            if (targetType == byte.class) {
                return block.append(OpCode.I2B);
            }
            if (targetType == char.class) {
                return block;
            }
            if (targetType == short.class) {
                return block;
            }
            if (targetType == int.class) {
                return block;
            }
            if (targetType == long.class) {
                return block.append(OpCode.I2L);
            }
            if (targetType == float.class) {
                return block.append(OpCode.I2F);
            }
            if (targetType == double.class) {
                return block.append(OpCode.I2D);
            }
        }
        if (sourceType == short.class) {
            if (targetType == byte.class) {
                return block.append(OpCode.I2B);
            }
            if (targetType == char.class) {
                return block.append(OpCode.I2C);
            }
            if (targetType == short.class) {
                return block;
            }
            if (targetType == int.class) {
                return block;
            }
            if (targetType == long.class) {
                return block.append(OpCode.I2L);
            }
            if (targetType == float.class) {
                return block.append(OpCode.I2F);
            }
            if (targetType == double.class) {
                return block.append(OpCode.I2D);
            }
        }
        if (sourceType == int.class) {
            if (targetType == boolean.class) {
                return block;
            }
            if (targetType == byte.class) {
                return block.append(OpCode.I2B);
            }
            if (targetType == char.class) {
                return block.append(OpCode.I2C);
            }
            if (targetType == short.class) {
                return block.append(OpCode.I2S);
            }
            if (targetType == int.class) {
                return block;
            }
            if (targetType == long.class) {
                return block.append(OpCode.I2L);
            }
            if (targetType == float.class) {
                return block.append(OpCode.I2F);
            }
            if (targetType == double.class) {
                return block.append(OpCode.I2D);
            }
        }
        if (sourceType == long.class) {
            if (targetType == byte.class) {
                return block.append(OpCode.L2I).append(OpCode.I2B);
            }
            if (targetType == char.class) {
                return block.append(OpCode.L2I).append(OpCode.I2C);
            }
            if (targetType == short.class) {
                return block.append(OpCode.L2I).append(OpCode.I2S);
            }
            if (targetType == int.class) {
                return block.append(OpCode.L2I);
            }
            if (targetType == long.class) {
                return block;
            }
            if (targetType == float.class) {
                return block.append(OpCode.L2F);
            }
            if (targetType == double.class) {
                return block.append(OpCode.L2D);
            }
        }
        if (sourceType == float.class) {
            if (targetType == byte.class) {
                return block.append(OpCode.F2I).append(OpCode.I2B);
            }
            if (targetType == char.class) {
                return block.append(OpCode.F2I).append(OpCode.I2C);
            }
            if (targetType == short.class) {
                return block.append(OpCode.F2I).append(OpCode.I2S);
            }
            if (targetType == int.class) {
                return block.append(OpCode.F2I);
            }
            if (targetType == long.class) {
                return block.append(OpCode.F2L);
            }
            if (targetType == float.class) {
                return block;
            }
            if (targetType == double.class) {
                return block.append(OpCode.F2D);
            }
        }
        if (sourceType == double.class) {
            if (targetType == byte.class) {
                return block.append(OpCode.D2I).append(OpCode.I2B);
            }
            if (targetType == char.class) {
                return block.append(OpCode.D2I).append(OpCode.I2C);
            }
            if (targetType == short.class) {
                return block.append(OpCode.D2I).append(OpCode.I2S);
            }
            if (targetType == int.class) {
                return block.append(OpCode.D2I);
            }
            if (targetType == long.class) {
                return block.append(OpCode.D2L);
            }
            if (targetType == float.class) {
                return block.append(OpCode.D2F);
            }
            if (targetType == double.class) {
                return block;
            }
        }
        throw new IllegalArgumentException(format("Type %s can not be cast to %s", sourceType, targetType));
    }