:: com :: sun :: star :: script ::

service Converter
Description
This service provides a widening converter converting from one type to another, if possible.

What is possible?

  • byte: byte, (short * 1), (long * 1), (hyper * 1), (float * 1), (double * 1), (enum * 2), (any * 3), boolean, (char * 4), (string * 5)
  • short: byte, short, (long * 1), (hyper * 1), (float * 7), (double * 7), (enum * 2), (any * 3), boolean, char, (string * 5)
  • long: byte, short, long, (hyper * 1), (float * 7), (double * 7), enum, (any * 3), boolean, char, (string * 5)
  • hyper: byte, short, long, hyper, (float * 7), (double * 7), enum, (any * 3), boolean, char, (string * 5)
  • float: byte, short, long, hyper, float, (double * 7), (enum * 8), (any * 3), boolean, char, (string * 5)
  • double: byte, short, long, hyper, float, double, enum, (any * 3), boolean, char, (string * 5)
  • enum: (byte * 9), (short * 9), (long * 9), (hyper * 9), (float * 9), (double * 9), (enum * 10), (any * 3), (string * 11)
  • void: ok for all types
  • any: ok for all types
  • boolean: byte, short, long, hyper, float, double, (any * 3), boolean, char, (string * 12). 0 => false, != 0 => true
  • char: byte, short, (long * 1), (hyper * 1), (float * 7), (double * 7), enum, (any * 3), boolean, char, (string * 13)
  • string: byte, short, long, hyper, float, double, enum, (any * 3), boolean, char, string
  • struct: (any * 3), (struct * 14)
  • interface: (any * 3), (struct * 14)
  • exception: (any * 3), (exception * 14)
  • union: (any * 3), (union * 14)
  • sequence: (any * 3), (sequence * 15)
rules:
  • 1: only converts if the value is in the range of the target type.
  • 2: only converts if the value, not the position, of the enum is in the range of the target type.
  • 3: get value until it is not an any. Then convert it with the other rules.
  • 4: only converts if the value of the character is between 0 - 255.
  • 5: only converts if the value represents a decimal, hexadecimal (0x...) or a floating point number. Examples: 10, 0x10, 10.045, 10,555, +10, +10.6e10, -10.6e-10, .16.
  • 7: only converts if the value is in the range of the target type. The value is rounded to an integer.
  • 8: only converts if the float can be converted back to the same enum value.
  • 9: only converts if the number is one of the enumeration type values. Normally you need reflection information of the enum type.
  • 10: only converts if it is the same enumeration type.
  • 11: only converts if the string contains the name of an enumeration type value. Normally you need core reflection information of the enum type.
  • 12: only converts if the value of the string is "1", "true" or "0", "false". The comparision is case insensitive.
  • 13: only converts if the length of the string is 1 or 0.
  • 14: only converts if the types are equal or the source type is derived from the destination type.
  • 15: only converts if each element of the source sequence can be converted to an element of the destination sequence.
Developers Guide
6.2.3 Advanced UNO - Language Bindings - UNO Reflection API

Exported Interfaces
XTypeConverter
Description
Conversion interface.

 
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