From Test-Scratch-Wiki
< Eng:Scratch File Format (1.4)(Redirected from Eng:Scratch File Format/Inline Values)
|
This article or section documents a feature not included in the current version of Scratch (3.0). It is only useful from a historical perspective. |
- This is part of a technical description of the file format.
Inline values
— nil, true, false, integers, and floats
— are simply encoded inline as fields in Objects in an Object Table.
Note: References are also found as Object fields, although they are not inline values.
List of Inline Values
| classID, type | Squeak Function, structure
|
1: nil
|
n/a (constant value) |
2: true
|
n/a (constant value) |
3: false
|
n/a (constant value) |
4: SmallInteger
|
SmallInt - signed 32-bit integer
|
5: SmallInteger16
|
SmallInt - signed 16-bit integer
|
6: LargePositiveInteger
|
length: 16-bit integer, followed by that many bytes. |
7: LargeNegativeInteger
|
(same as above) |
8: Float
|
8 bytes |
- "Squeak function" refers to the function in the Squeak source code used to parse that type (eg.
getSmallInt,putSmallInt.)
References
| Files | |
| Structure |
Object Table • Inline Values • Objects • Fixed-format Objects • User-class Objects |
| Contents | |
