diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2018-01-06 14:46:52 +0100 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2018-01-08 12:52:31 +0100 |
| commit | 402a0dc87e7d51812a18fa76feeb46d66efda175 (patch) | |
| tree | 03ae2832257917a68829137b0a504f6f8c2e499a /pkg/ast/testdata | |
| parent | 93b4c6f135aeecbb756fe8c8a3d46c7a05412a54 (diff) | |
sys: support type aliases (aka typedefs)
Complex types that are often repeated can be given short type aliases using the
following syntax:
```
type identifier underlying_type
```
For example:
```
type signalno int32[0:65]
type net_port proc[20000, 4, int16be]
```
Then, type alias can be used instead of the underlying type in any contexts.
Underlying type needs to be described as if it's a struct field, that is,
with the base type if it's required. However, type alias can be used as syscall
arguments as well. Underlying types are currently restricted to integer types,
`ptr`, `ptr64`, `const`, `flags` and `proc` types.
Diffstat (limited to 'pkg/ast/testdata')
| -rw-r--r-- | pkg/ast/testdata/all.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/ast/testdata/all.txt b/pkg/ast/testdata/all.txt index 3f647e4ca..fedcc51a2 100644 --- a/pkg/ast/testdata/all.txt +++ b/pkg/ast/testdata/all.txt @@ -45,3 +45,8 @@ s2 { # comment } + +type bool8 int8 +type net_port proc[1, 2, int16be] +type bool16 ### unexpected '\n', expecting int, identifier, string +type type4:4 int32 ### unexpected ':', expecting int, identifier, string |