table-grow-from-wasm.js 8.18 KB
Newer Older
1 2 3 4
// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

5
// Flags: --expose-wasm
6

7
d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
8 9 10 11 12 13 14 15 16

function dummy_func(val) {
  let builder = new WasmModuleBuilder();
  builder.addFunction("dummy", kSig_i_v)
    .addBody([kExprI32Const, val])
    .exportAs("dummy");
  return builder.instantiate().exports.dummy;
}

17 18
let kSig_i_ri = makeSig([kWasmExternRef, kWasmI32], [kWasmI32]);
let kSig_r_i = makeSig([kWasmI32], [kWasmExternRef]);
19 20
let kSig_i_ai = makeSig([kWasmAnyFunc, kWasmI32], [kWasmI32]);

21
function testGrowInternalExternRefTable(table_index) {
22 23 24 25 26 27
  print(arguments.callee.name, table_index);

  const builder = new WasmModuleBuilder();
  const initial_size = 5;
  // Add 10 tables, we only test one.
  for (let i = 0; i < 10; ++i) {
28
    builder.addTable(kWasmExternRef, initial_size).index;
29 30
  }
  builder.addFunction('grow', kSig_i_ri)
31 32
    .addBody([kExprLocalGet, 0,
      kExprLocalGet, 1,
33 34 35
      kNumericPrefix, kExprTableGrow, table_index])
    .exportFunc();

36 37 38 39
  builder.addFunction('size', kSig_i_v)
    .addBody([kNumericPrefix, kExprTableSize, table_index])
    .exportFunc();

40
  builder.addFunction('get', kSig_r_i)
41
    .addBody([kExprLocalGet, 0, kExprTableGet, table_index])
42 43 44 45 46 47 48 49
    .exportFunc();

  const instance = builder.instantiate();

  let size = initial_size;
  assertEquals(null, instance.exports.get(size - 2));

  function growAndCheck(element, grow_by) {
50
    assertEquals(size, instance.exports.size());
51 52 53 54 55 56 57 58 59 60 61 62 63 64
    assertTraps(kTrapTableOutOfBounds, () => instance.exports.get(size));
    assertEquals(size, instance.exports.grow(element, grow_by));
    for (let i = 0; i < grow_by; ++i) {
      assertEquals(element, instance.exports.get(size + i));
    }
    size += grow_by;
  }
  growAndCheck("Hello", 3);
  growAndCheck(undefined, 4);
  growAndCheck(4, 2);
  growAndCheck({Hello: "World"}, 3);
  growAndCheck(null, 2);
}

65 66 67
testGrowInternalExternRefTable(0);
testGrowInternalExternRefTable(7);
testGrowInternalExternRefTable(9);
68 69 70 71 72 73 74 75 76 77

function testGrowInternalAnyFuncTable(table_index) {
  print(arguments.callee.name, table_index);

  const builder = new WasmModuleBuilder();
  let size = 5;
  for (let i = 0; i < 10; ++i) {
    builder.addTable(kWasmAnyFunc, size).index;
  }
  builder.addFunction('grow', kSig_i_ai)
78 79
    .addBody([kExprLocalGet, 0,
      kExprLocalGet, 1,
80 81 82
      kNumericPrefix, kExprTableGrow, table_index])
    .exportFunc();

83 84 85 86
  builder.addFunction('size', kSig_i_v)
    .addBody([kNumericPrefix, kExprTableSize, table_index])
    .exportFunc();

87 88
  const sig_index = builder.addType(kSig_i_v);
  builder.addFunction('call', kSig_i_i)
89
    .addBody([kExprLocalGet, 0, kExprCallIndirect, sig_index, table_index])
90 91 92 93 94
    .exportFunc();

  const instance = builder.instantiate();
  assertTraps(kTrapFuncSigMismatch, () => instance.exports.call(size - 2));
  function growAndCheck(element, grow_by) {
95
    assertEquals(size, instance.exports.size());
96
    assertTraps(kTrapTableOutOfBounds, () => instance.exports.call(size));
97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118
    assertEquals(size, instance.exports.grow(dummy_func(element), grow_by));
    for (let i = 0; i < grow_by; ++i) {
      assertEquals(element, instance.exports.call(size + i));
    }
    size += grow_by;
  }
  growAndCheck(56, 3);
  growAndCheck(12, 4);

  assertEquals(size, instance.exports.grow(null, 1));
  assertTraps(kTrapFuncSigMismatch, () => instance.exports.call(size));
}

testGrowInternalAnyFuncTable(0);
testGrowInternalAnyFuncTable(7);
testGrowInternalAnyFuncTable(9);

(function testGrowImportedTable() {
  print(arguments.callee.name);

  let size = 3;
  const builder = new WasmModuleBuilder();
119
  const table_index = builder.addImportedTable("imp", "table", size, undefined, kWasmExternRef);
120
  builder.addFunction('grow', kSig_i_ri)
121 122
    .addBody([kExprLocalGet, 0,
      kExprLocalGet, 1,
123 124 125
      kNumericPrefix, kExprTableGrow, table_index])
    .exportFunc();

126 127 128 129
  builder.addFunction('size', kSig_i_v)
    .addBody([kNumericPrefix, kExprTableSize, table_index])
    .exportFunc();

130
  const table = new WebAssembly.Table({element: "externref", initial: size});
131 132

  const instance = builder.instantiate({imp: {table: table}});
133
  assertEquals(undefined, table.get(size - 2));
134 135

  function growAndCheck(element, grow_by) {
136
    assertEquals(size, instance.exports.size());
137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
    assertEquals(size, instance.exports.grow(element, grow_by));
    for (let i = 0; i < grow_by; ++i) {
      assertEquals(element, table.get(size + i));
    }
    size += grow_by;
  }
  growAndCheck("Hello", 3);
  growAndCheck(undefined, 4);
  growAndCheck(4, 2);
  growAndCheck({ Hello: "World" }, 3);
  growAndCheck(null, 2);
})();

(function testGrowTableOutOfBounds() {
  print(arguments.callee.name);

  const initial = 3;
  const maximum = 10;
  const max_delta = maximum - initial;
  const invalid_delta = max_delta + 1;

  const builder = new WasmModuleBuilder();
  const import_ref = builder.addImportedTable(
160
    "imp", "table_ref", initial, maximum, kWasmExternRef);
161 162
  const import_func = builder.addImportedTable(
    "imp", "table_func", initial, maximum, kWasmAnyFunc);
163
  const internal_ref = builder.addTable(kWasmExternRef, initial, maximum).index;
164 165 166
  const internal_func = builder.addTable(kWasmAnyFunc, initial, maximum).index;

  builder.addFunction('grow_imported_ref', kSig_i_ri)
167 168
  .addBody([kExprLocalGet, 0,
    kExprLocalGet, 1,
169 170 171 172
    kNumericPrefix, kExprTableGrow, import_ref])
  .exportFunc();

  builder.addFunction('grow_imported_func', kSig_i_ai)
173 174
  .addBody([kExprLocalGet, 0,
    kExprLocalGet, 1,
175 176 177 178
    kNumericPrefix, kExprTableGrow, import_func])
  .exportFunc();

  builder.addFunction('grow_internal_ref', kSig_i_ri)
179 180
  .addBody([kExprLocalGet, 0,
    kExprLocalGet, 1,
181 182 183 184
    kNumericPrefix, kExprTableGrow, internal_ref])
  .exportFunc();

  builder.addFunction('grow_internal_func', kSig_i_ai)
185 186
  .addBody([kExprLocalGet, 0,
    kExprLocalGet, 1,
187 188 189
    kNumericPrefix, kExprTableGrow, internal_func])
  .exportFunc();

190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205
  builder.addFunction('size_imported_ref', kSig_i_v)
    .addBody([kNumericPrefix, kExprTableSize, import_ref])
    .exportFunc();

  builder.addFunction('size_imported_func', kSig_i_v)
    .addBody([kNumericPrefix, kExprTableSize, import_func])
    .exportFunc();

  builder.addFunction('size_internal_ref', kSig_i_v)
    .addBody([kNumericPrefix, kExprTableSize, internal_ref])
    .exportFunc();

  builder.addFunction('size_internal_func', kSig_i_v)
    .addBody([kNumericPrefix, kExprTableSize, internal_func])
    .exportFunc();

206
  const table_ref = new WebAssembly.Table(
207
    { element: "externref", initial: initial, maximum: maximum });
208 209 210 211 212 213 214 215 216 217 218 219
  const table_func = new WebAssembly.Table(
    {element: "anyfunc", initial: initial, maximum: maximum});

  const instance = builder.instantiate(
    {imp: {table_ref: table_ref, table_func: table_func}});

  const ref = { foo: "bar" };
  const func = dummy_func(17);

  // First check that growing out-of-bounds is not possible.
  assertEquals(-1, instance.exports.grow_imported_ref(ref, invalid_delta));
  assertEquals(initial, table_ref.length);
220
  assertEquals(initial, instance.exports.size_imported_ref());
221 222
  assertEquals(-1, instance.exports.grow_imported_func(func, invalid_delta));
  assertEquals(initial, table_func.length);
223
  assertEquals(initial, instance.exports.size_imported_func());
224
  assertEquals(-1, instance.exports.grow_internal_ref(ref, invalid_delta));
225
  assertEquals(initial, instance.exports.size_internal_ref());
226
  assertEquals(-1, instance.exports.grow_internal_func(func, invalid_delta));
227
  assertEquals(initial, instance.exports.size_internal_func());
228 229 230 231

  // Check that we can grow to the maximum size.
  assertEquals(initial, instance.exports.grow_imported_ref(ref, max_delta));
  assertEquals(maximum, table_ref.length);
232
  assertEquals(maximum, instance.exports.size_imported_ref());
233 234
  assertEquals(initial, instance.exports.grow_imported_func(func, max_delta));
  assertEquals(maximum, table_func.length);
235
  assertEquals(maximum, instance.exports.size_imported_func());
236
  assertEquals(initial, instance.exports.grow_internal_ref(ref, max_delta));
237
  assertEquals(maximum, instance.exports.size_internal_ref());
238
  assertEquals(initial, instance.exports.grow_internal_func(func, max_delta));
239
  assertEquals(maximum, instance.exports.size_internal_func());
240
})();