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internal/abi.Map: IndirectKey/IndirectElem

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This commit is contained in:
xushiwei
2024-06-15 08:21:27 +08:00
parent 08d00fa234
commit 7b0d23f91f
3 changed files with 24 additions and 3 deletions
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5
c/c.go
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@@ -46,7 +46,7 @@ type integer interface {
func Str(string) *Char
// llgo:link Advance llgo.advance
func Advance[PtrT any](ptr PtrT, offset int) PtrT { return ptr }
func Advance[PtrT any, I integer](ptr PtrT, offset I) PtrT { return ptr }
// llgo:link Index llgo.index
func Index[T any, I integer](ptr *T, offset I) T { return *ptr }
@@ -66,6 +66,9 @@ func Free(ptr Pointer)
//go:linkname Memcpy C.memcpy
func Memcpy(dst, src Pointer, n uintptr) Pointer
//go:linkname Memmove C.memmove
func Memmove(dst, src Pointer, n uintptr) Pointer
//go:linkname Memset C.memset
func Memset(s Pointer, c Int, n uintptr) Pointer

18
internal/abi/type.go
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@@ -170,6 +170,24 @@ type MapType struct {
Flags uint32
}
// Note: flag values must match those used in the TMAP case
// in ../cmd/compile/internal/reflectdata/reflect.go:writeType.
func (mt *MapType) IndirectKey() bool { // store ptr to key instead of key itself
return mt.Flags&1 != 0
}
func (mt *MapType) IndirectElem() bool { // store ptr to elem instead of elem itself
return mt.Flags&2 != 0
}
func (mt *MapType) ReflexiveKey() bool { // true if k==k for all keys
return mt.Flags&4 != 0
}
func (mt *MapType) NeedKeyUpdate() bool { // true if we need to update key on an overwrite
return mt.Flags&8 != 0
}
func (mt *MapType) HashMightPanic() bool { // true if hash function might panic
return mt.Flags&16 != 0
}
type PtrType struct {
Type
Elem *Type // pointer element (pointed at) type

4
py/README.md
View File

@@ -19,10 +19,10 @@ To run the demos in directory `_demo`, you need to set the `LLGO_LIB_PYTHON` env
export LLGO_LIB_PYTHON=/foo/bar/python3.12
```
For example, `/opt/homebrew/Frameworks/Python.framework/Versions/3.12/libpython3.12.dylib` is a typical python lib location under macOS. So we should set it like this:
For example, `/opt/homebrew/Frameworks/Python.framework/Versions/3.12/lib/libpython3.12.dylib` is a typical python lib location under macOS. So we should set it like this:
```sh
export LLGO_LIB_PYTHON=/opt/homebrew/Frameworks/Python.framework/Versions/3.12/python3.12
export LLGO_LIB_PYTHON=/opt/homebrew/Frameworks/Python.framework/Versions/3.12/lib/python3.12
```
Then you can run the demos in directory `_demo`: