sqlite/sqlite3.wit
2020-09-15 14:35:03 +03:00

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;; Fluence SQLite fork Wasm Interface Types
;; allocate
(@interface type (func (param i32) (result i32))) ;; 0
;; deallocate
(@interface type (func (param i32 i32))) ;; 1
;; invoke
(@interface type (func (param string) (result string))) ;; 2
;; get_result_ptr/get_result_size
(@interface type (func (result i32))) ;; 3
;; set_result_ptr/set_result_size
(@interface type (func (param i32))) ;; 4
(@interface export "allocate" (func 0)) ;; 0
(@interface export "deallocate" (func 1)) ;; 1
(@interface export "invoke" (func 2)) ;; 2
(@interface export "get_result_size" (func 3)) ;; 3
(@interface export "get_result_ptr" (func 3)) ;; 4
(@interface export "set_result_size" (func 4)) ;; 5
(@interface export "set_result_ptr" (func 4)) ;; 6
;; adapter for export invoke function
(@interface func (type 2)
arg.get 0
string.size
call-core 0 ;; call allocate
arg.get 0
string.lower_memory
call-core 2 ;; call invoke
call-core 4 ;; call get_result_size
call-core 3 ;; call get_result_ptr
string.lift_memory
call-core 4 ;; call get_result_size
call-core 3 ;; call get_result_ptr
call-core 1 ;; call deallocate
)
;; Implementations
(@interface implement (func 2) (func 2))