[GROOVY-9366] Unable represent literal byte costant

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.9
• Fix Version/s: 4.0.4
• Labels: annotations
• Assignee: Eric Milles
• Reporter: paolo di tommaso
• Created: 16/Jan/20 12:46
• Updated: 23/Jul/22 21:05
• Resolved: 06/Jul/22 22:51

Description

Groovy does not allow the definition of literal byte constants. This makes impossible to express byte constant in some use cases.

First example:

public @interface Version {
 byte value();
}

class Foo {
 @Version(0x01) String bar
}

Error: Attribute 'value' should have type 'java.lang.Byte'; but found type 'int' in @Version
 

 

Second example: 

public @interface Version {
    byte value();
}

class Foo {
  @Version(1 as byte) String bar
}

Expected '(byte) 1' to be an inline constant of type byte in @Version
 at line: 6, column: 14Attribute 'value' should have type 'java.lang.Byte'; but found type 'java.lang.Object' in @Version
 at line: -1, column: -1 

 

Third example: 

public @interface Version {
    byte value();
}

class Foo {
  public static final byte ONE = 0b01
  @Version(ONE) String bar
}

Expected 'ONE' to be an inline constant of type byte not a field expression in @Version
 at line: 7, column: 12Attribute 'value' should have type 'java.lang.Byte'; but found type 'java.lang.Object' in @Version
 at line: -1, column: -1
 

 

 

 

Issue Links

• is related to: GROOVY-9206 Cannot use annotation with attribute of type char
• is related to: GROOVY-9205 Specify primitive annotation default value using number literal with cast/coerce
• relates to: GROOVY-7252 Integer literal not accepted for primitive short annotation attribute
• relates to: GROOVY-10068 Cannot compile when set short value to annotation by already defined short variable since version 2.5.4