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func_ptrs.wast
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func_ptrs.wast
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(module
(type (func)) ;; 0: void -> void
(type $S (func)) ;; 1: void -> void
(type (func (param))) ;; 2: void -> void
(type (func (result i32))) ;; 3: void -> i32
(type (func (param) (result i32))) ;; 4: void -> i32
(type $T (func (param i32) (result i32))) ;; 5: i32 -> i32
(type $U (func (param i32))) ;; 6: i32 -> void
(func $print (import "spectest" "print_i32") (type 6))
(func (type 0))
(func (type $S))
(func (export "one") (type 4) (i32.const 13))
(func (export "two") (type $T) (i32.add (local.get 0) (i32.const 1)))
;; Both signature and parameters are allowed (and required to match)
;; since this allows the naming of parameters.
(func (export "three") (type $T) (param $a i32) (result i32)
(i32.sub (local.get 0) (i32.const 2))
)
(func (export "four") (type $U) (call $print (local.get 0)))
)
(assert_return (invoke "one") (i32.const 13))
(assert_return (invoke "two" (i32.const 13)) (i32.const 14))
(assert_return (invoke "three" (i32.const 13)) (i32.const 11))
(invoke "four" (i32.const 83))
(assert_invalid (module (elem (i32.const 0))) "unknown table")
(assert_invalid (module (elem (i32.const 0) 0) (func)) "unknown table")
(assert_invalid
(module (table 1 funcref) (elem (i64.const 0)))
"type mismatch"
)
(assert_invalid
(module (table 1 funcref) (elem (i32.ctz (i32.const 0))))
"constant expression required"
)
(assert_invalid
(module (table 1 funcref) (elem (nop)))
"constant expression required"
)
(assert_invalid (module (func (type 42))) "unknown type")
(assert_invalid (module (import "spectest" "print_i32" (func (type 43)))) "unknown type")
(module
(type $T (func (param) (result i32)))
(type $U (func (param) (result i32)))
(table funcref (elem $t1 $t2 $t3 $u1 $u2 $t1 $t3))
(func $t1 (type $T) (i32.const 1))
(func $t2 (type $T) (i32.const 2))
(func $t3 (type $T) (i32.const 3))
(func $u1 (type $U) (i32.const 4))
(func $u2 (type $U) (i32.const 5))
(func (export "callt") (param $i i32) (result i32)
(call_indirect (type $T) (local.get $i))
)
(func (export "callu") (param $i i32) (result i32)
(call_indirect (type $U) (local.get $i))
)
)
(assert_return (invoke "callt" (i32.const 0)) (i32.const 1))
(assert_return (invoke "callt" (i32.const 1)) (i32.const 2))
(assert_return (invoke "callt" (i32.const 2)) (i32.const 3))
(assert_return (invoke "callt" (i32.const 3)) (i32.const 4))
(assert_return (invoke "callt" (i32.const 4)) (i32.const 5))
(assert_return (invoke "callt" (i32.const 5)) (i32.const 1))
(assert_return (invoke "callt" (i32.const 6)) (i32.const 3))
(assert_trap (invoke "callt" (i32.const 7)) "undefined element")
(assert_trap (invoke "callt" (i32.const 100)) "undefined element")
(assert_trap (invoke "callt" (i32.const -1)) "undefined element")
(assert_return (invoke "callu" (i32.const 0)) (i32.const 1))
(assert_return (invoke "callu" (i32.const 1)) (i32.const 2))
(assert_return (invoke "callu" (i32.const 2)) (i32.const 3))
(assert_return (invoke "callu" (i32.const 3)) (i32.const 4))
(assert_return (invoke "callu" (i32.const 4)) (i32.const 5))
(assert_return (invoke "callu" (i32.const 5)) (i32.const 1))
(assert_return (invoke "callu" (i32.const 6)) (i32.const 3))
(assert_trap (invoke "callu" (i32.const 7)) "undefined element")
(assert_trap (invoke "callu" (i32.const 100)) "undefined element")
(assert_trap (invoke "callu" (i32.const -1)) "undefined element")
(module
(type $T (func (result i32)))
(table funcref (elem 0 1))
(func $t1 (type $T) (i32.const 1))
(func $t2 (type $T) (i32.const 2))
(func (export "callt") (param $i i32) (result i32)
(call_indirect (type $T) (local.get $i))
)
)
(assert_return (invoke "callt" (i32.const 0)) (i32.const 1))
(assert_return (invoke "callt" (i32.const 1)) (i32.const 2))