[wasm] Enforce memory and table limits during instantiation.

test/mjsunit/wasm/indirect-tables.js

Index: test/mjsunit/wasm/indirect-tables.js
diff --git a/test/mjsunit/wasm/indirect-tables.js b/test/mjsunit/wasm/indirect-tables.js
index 057d0f3661f044879a28dc6015484182a8ee1f19..33f5da6a2bcc64308bfba14f0b6ba09c433acb37 100644
--- a/test/mjsunit/wasm/indirect-tables.js
+++ b/test/mjsunit/wasm/indirect-tables.js
@@ -199,7 +199,8 @@ function js_div(a, b) { return (a / b) | 0; }
   for (let i = 0; i < 5; i++) {
     print(" base = " + i);
     let table = new WebAssembly.Table({element: "anyfunc",
-                                       initial: kTableSize});
+                                       initial: kTableSize,
+                                       maximum: kTableSize});
     assertEquals(10, table.length);
     let i2 = new WebAssembly.Instance(m2, {q: {base: i, table: table,
                                                js_div: js_div}});
@@ -242,7 +243,7 @@ function js_div(a, b) { return (a / b) | 0; }
   print("CumulativeTest...");
 
   let kTableSize = 10;
-  let table = new WebAssembly.Table({element: "anyfunc", initial: 10});
+  let table = new WebAssembly.Table({element: "anyfunc", initial: kTableSize, maximum: kTableSize});

[rossberg, 2017/01/17 14:22:06]

Nit: line length

[titzer, 2017/01/17 16:47:18]

Done.

 
   var builder = new WasmModuleBuilder();
 
@@ -457,3 +458,22 @@ function js_div(a, b) { return (a / b) | 0; }
   }
   assertThrows(() => table.grow(11));
 })();
+
+
+(function TestImportTooLarge() {
+  print("TestImportTooLarge...");
+  let builder = new WasmModuleBuilder();
+  builder.addImportedTable("t", "t", 1, 2);
+
+  // initial size is too large
+  assertThrows(() => builder.instantiate({t: {t: new WebAssembly.Table(
+    {element: "anyfunc", initial: 3, maximum: 3})}}));
+
+  // maximum size is too large
+  assertThrows(() => builder.instantiate({t: {t: new WebAssembly.Table(
+    {element: "anyfunc", initial: 1, maximum: 4})}}));
+
+  // no maximum
+  assertThrows(() => builder.instantiate({t: {t: new WebAssembly.Table(
+    {element: "anyfunc", initial: 1})}}));
+})();