wa-lang.org/wazero@v1.0.2/internal/integration_test/spectest/v1/testdata/elem.wast (about)

     1  ;; Test the element section
     2  
     3  ;; Syntax
     4  (module
     5    (table $t 10 funcref)
     6    (func $f)
     7    (elem (i32.const 0))
     8    (elem (i32.const 0) $f $f)
     9    (elem (offset (i32.const 0)))
    10    (elem (offset (i32.const 0)) $f $f)
    11    (elem 0 (i32.const 0))
    12    (elem 0x0 (i32.const 0) $f $f)
    13    (elem 0x000 (offset (i32.const 0)))
    14    (elem 0 (offset (i32.const 0)) $f $f)
    15    (elem $t (i32.const 0))
    16    (elem $t (i32.const 0) $f $f)
    17    (elem $t (offset (i32.const 0)))
    18    (elem $t (offset (i32.const 0)) $f $f)
    19  )
    20  
    21  ;; Basic use
    22  
    23  (module
    24    (table 10 funcref)
    25    (func $f)
    26    (elem (i32.const 0) $f)
    27  )
    28  (module
    29    (import "spectest" "table" (table 10 funcref))
    30    (func $f)
    31    (elem (i32.const 0) $f)
    32  )
    33  
    34  (module
    35    (table 10 funcref)
    36    (func $f)
    37    (elem (i32.const 0) $f)
    38    (elem (i32.const 3) $f)
    39    (elem (i32.const 7) $f)
    40    (elem (i32.const 5) $f)
    41    (elem (i32.const 3) $f)
    42  )
    43  (module
    44    (import "spectest" "table" (table 10 funcref))
    45    (func $f)
    46    (elem (i32.const 9) $f)
    47    (elem (i32.const 3) $f)
    48    (elem (i32.const 7) $f)
    49    (elem (i32.const 3) $f)
    50    (elem (i32.const 5) $f)
    51  )
    52  
    53  (module
    54    (global (import "spectest" "global_i32") i32)
    55    (table 1000 funcref)
    56    (func $f)
    57    (elem (global.get 0) $f)
    58  )
    59  
    60  (module
    61    (global $g (import "spectest" "global_i32") i32)
    62    (table 1000 funcref)
    63    (func $f)
    64    (elem (global.get $g) $f)
    65  )
    66  
    67  (module
    68    (type $out-i32 (func (result i32)))
    69    (table 10 funcref)
    70    (elem (i32.const 7) $const-i32-a)
    71    (elem (i32.const 9) $const-i32-b)
    72    (func $const-i32-a (type $out-i32) (i32.const 65))
    73    (func $const-i32-b (type $out-i32) (i32.const 66))
    74    (func (export "call-7") (type $out-i32)
    75      (call_indirect (type $out-i32) (i32.const 7))
    76    )
    77    (func (export "call-9") (type $out-i32)
    78      (call_indirect (type $out-i32) (i32.const 9))
    79    )
    80  )
    81  (assert_return (invoke "call-7") (i32.const 65))
    82  (assert_return (invoke "call-9") (i32.const 66))
    83  
    84  ;; Corner cases
    85  
    86  (module
    87    (table 10 funcref)
    88    (func $f)
    89    (elem (i32.const 9) $f)
    90  )
    91  (module
    92    (import "spectest" "table" (table 10 funcref))
    93    (func $f)
    94    (elem (i32.const 9) $f)
    95  )
    96  
    97  (module
    98    (table 0 funcref)
    99    (elem (i32.const 0))
   100  )
   101  (module
   102    (import "spectest" "table" (table 0 funcref))
   103    (elem (i32.const 0))
   104  )
   105  
   106  (module
   107    (table 0 0 funcref)
   108    (elem (i32.const 0))
   109  )
   110  
   111  (module
   112    (table 20 funcref)
   113    (elem (i32.const 20))
   114  )
   115  
   116  (module
   117    (import "spectest" "table" (table 0 funcref))
   118    (func $f)
   119    (elem (i32.const 0) $f)
   120  )
   121  
   122  (module
   123    (import "spectest" "table" (table 0 100 funcref))
   124    (func $f)
   125    (elem (i32.const 0) $f)
   126  )
   127  
   128  (module
   129    (import "spectest" "table" (table 0 funcref))
   130    (func $f)
   131    (elem (i32.const 1) $f)
   132  )
   133  
   134  (module
   135    (import "spectest" "table" (table 0 30 funcref))
   136    (func $f)
   137    (elem (i32.const 1) $f)
   138  )
   139  
   140  ;; Invalid bounds for elements
   141  
   142  (assert_unlinkable
   143    (module
   144      (table 0 funcref)
   145      (func $f)
   146      (elem (i32.const 0) $f)
   147    )
   148    "elements segment does not fit"
   149  )
   150  
   151  (assert_unlinkable
   152    (module
   153      (table 0 0 funcref)
   154      (func $f)
   155      (elem (i32.const 0) $f)
   156    )
   157    "elements segment does not fit"
   158  )
   159  
   160  (assert_unlinkable
   161    (module
   162      (table 0 1 funcref)
   163      (func $f)
   164      (elem (i32.const 0) $f)
   165    )
   166    "elements segment does not fit"
   167  )
   168  
   169  (assert_unlinkable
   170    (module
   171      (table 0 funcref)
   172      (elem (i32.const 1))
   173    )
   174    "elements segment does not fit"
   175  )
   176  
   177  (assert_unlinkable
   178    (module
   179      (table 10 funcref)
   180      (func $f)
   181      (elem (i32.const 10) $f)
   182    )
   183    "elements segment does not fit"
   184  )
   185  (assert_unlinkable
   186    (module
   187      (import "spectest" "table" (table 10 funcref))
   188      (func $f)
   189      (elem (i32.const 10) $f)
   190    )
   191    "elements segment does not fit"
   192  )
   193  
   194  (assert_unlinkable
   195    (module
   196      (table 10 20 funcref)
   197      (func $f)
   198      (elem (i32.const 10) $f)
   199    )
   200    "elements segment does not fit"
   201  )
   202  (assert_unlinkable
   203    (module
   204      (import "spectest" "table" (table 10 funcref))
   205      (func $f)
   206      (elem (i32.const 10) $f)
   207    )
   208    "elements segment does not fit"
   209  )
   210  
   211  (assert_unlinkable
   212    (module
   213      (table 10 funcref)
   214      (func $f)
   215      (elem (i32.const -1) $f)
   216    )
   217    "elements segment does not fit"
   218  )
   219  (assert_unlinkable
   220    (module
   221      (import "spectest" "table" (table 10 funcref))
   222      (func $f)
   223      (elem (i32.const -1) $f)
   224    )
   225    "elements segment does not fit"
   226  )
   227  
   228  (assert_unlinkable
   229    (module
   230      (table 10 funcref)
   231      (func $f)
   232      (elem (i32.const -10) $f)
   233    )
   234    "elements segment does not fit"
   235  )
   236  (assert_unlinkable
   237    (module
   238      (import "spectest" "table" (table 10 funcref))
   239      (func $f)
   240      (elem (i32.const -10) $f)
   241    )
   242    "elements segment does not fit"
   243  )
   244  
   245  ;; Element without table
   246  
   247  (assert_invalid
   248    (module
   249      (func $f)
   250      (elem (i32.const 0) $f)
   251    )
   252    "unknown table 0"
   253  )
   254  
   255  ;; Invalid offsets
   256  
   257  (assert_invalid
   258    (module
   259      (table 1 funcref)
   260      (elem (i64.const 0))
   261    )
   262    "type mismatch"
   263  )
   264  
   265  (assert_invalid
   266    (module
   267      (table 1 funcref)
   268      (elem (i32.ctz (i32.const 0)))
   269    )
   270    "constant expression required"
   271  )
   272  
   273  (assert_invalid
   274    (module
   275      (table 1 funcref)
   276      (elem (nop))
   277    )
   278    "constant expression required"
   279  )
   280  
   281  (assert_invalid
   282    (module
   283      (table 1 funcref)
   284      (elem (offset (nop) (i32.const 0)))
   285    )
   286    "constant expression required"
   287  )
   288  
   289  (assert_invalid
   290    (module
   291      (table 1 funcref)
   292      (elem (offset (i32.const 0) (nop)))
   293    )
   294    "constant expression required"
   295  )
   296  
   297  ;; Use of internal globals in constant expressions is not allowed in MVP.
   298  ;; (assert_invalid
   299  ;;   (module (memory 1) (data (global.get $g)) (global $g (mut i32) (i32.const 0)))
   300  ;;   "constant expression required"
   301  ;; )
   302  
   303  ;; Two elements target the same slot
   304  
   305  (module
   306    (type $out-i32 (func (result i32)))
   307    (table 10 funcref)
   308    (elem (i32.const 9) $const-i32-a)
   309    (elem (i32.const 9) $const-i32-b)
   310    (func $const-i32-a (type $out-i32) (i32.const 65))
   311    (func $const-i32-b (type $out-i32) (i32.const 66))
   312    (func (export "call-overwritten") (type $out-i32)
   313      (call_indirect (type $out-i32) (i32.const 9))
   314    )
   315  )
   316  (assert_return (invoke "call-overwritten") (i32.const 66))
   317  
   318  (module
   319    (type $out-i32 (func (result i32)))
   320    (import "spectest" "table" (table 10 funcref))
   321    (elem (i32.const 9) $const-i32-a)
   322    (elem (i32.const 9) $const-i32-b)
   323    (func $const-i32-a (type $out-i32) (i32.const 65))
   324    (func $const-i32-b (type $out-i32) (i32.const 66))
   325    (func (export "call-overwritten-element") (type $out-i32)
   326      (call_indirect (type $out-i32) (i32.const 9))
   327    )
   328  )
   329  (assert_return (invoke "call-overwritten-element") (i32.const 66))
   330  
   331  ;; Element sections across multiple modules change the same table
   332  
   333  (module $module1
   334    (type $out-i32 (func (result i32)))
   335    (table (export "shared-table") 10 funcref)
   336    (elem (i32.const 8) $const-i32-a)
   337    (elem (i32.const 9) $const-i32-b)
   338    (func $const-i32-a (type $out-i32) (i32.const 65))
   339    (func $const-i32-b (type $out-i32) (i32.const 66))
   340    (func (export "call-7") (type $out-i32)
   341      (call_indirect (type $out-i32) (i32.const 7))
   342    )
   343    (func (export "call-8") (type $out-i32)
   344      (call_indirect (type $out-i32) (i32.const 8))
   345    )
   346    (func (export "call-9") (type $out-i32)
   347      (call_indirect (type $out-i32) (i32.const 9))
   348    )
   349  )
   350  
   351  (register "module1" $module1)
   352  
   353  (assert_trap (invoke $module1 "call-7") "uninitialized element 7")
   354  (assert_return (invoke $module1 "call-8") (i32.const 65))
   355  (assert_return (invoke $module1 "call-9") (i32.const 66))
   356  
   357  (module $module2
   358    (type $out-i32 (func (result i32)))
   359    (import "module1" "shared-table" (table 10 funcref))
   360    (elem (i32.const 7) $const-i32-c)
   361    (elem (i32.const 8) $const-i32-d)
   362    (func $const-i32-c (type $out-i32) (i32.const 67))
   363    (func $const-i32-d (type $out-i32) (i32.const 68))
   364  )
   365  
   366  (assert_return (invoke $module1 "call-7") (i32.const 67))
   367  (assert_return (invoke $module1 "call-8") (i32.const 68))
   368  (assert_return (invoke $module1 "call-9") (i32.const 66))
   369  
   370  (module $module3
   371    (type $out-i32 (func (result i32)))
   372    (import "module1" "shared-table" (table 10 funcref))
   373    (elem (i32.const 8) $const-i32-e)
   374    (elem (i32.const 9) $const-i32-f)
   375    (func $const-i32-e (type $out-i32) (i32.const 69))
   376    (func $const-i32-f (type $out-i32) (i32.const 70))
   377  )
   378  
   379  (assert_return (invoke $module1 "call-7") (i32.const 67))
   380  (assert_return (invoke $module1 "call-8") (i32.const 69))
   381  (assert_return (invoke $module1 "call-9") (i32.const 70))