1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit-test/tests/asm.js/testNeuter.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,81 @@
1.4 +load(libdir + "asm.js");
1.5 +
1.6 +function f(stdlib, foreign, buffer) {
1.7 + "use asm";
1.8 + var i32 = new stdlib.Int32Array(buffer);
1.9 + function set(i,j) {
1.10 + i=i|0;
1.11 + j=j|0;
1.12 + i32[i>>2] = j;
1.13 + }
1.14 + function get(i) {
1.15 + i=i|0;
1.16 + return i32[i>>2]|0
1.17 + }
1.18 + return {get:get, set:set}
1.19 +}
1.20 +if (isAsmJSCompilationAvailable())
1.21 + assertEq(isAsmJSModule(f), true);
1.22 +
1.23 +var i32 = new Int32Array(1024);
1.24 +var buffer = i32.buffer;
1.25 +var {get, set} = f(this, null, buffer);
1.26 +if (isAsmJSCompilationAvailable())
1.27 + assertEq(isAsmJSFunction(get) && isAsmJSFunction(set), true);
1.28 +
1.29 +set(4, 42);
1.30 +assertEq(get(4), 42);
1.31 +
1.32 +neuter(buffer, "change-data");
1.33 +neuter(buffer, "same-data");
1.34 +
1.35 +// These operations may throw internal errors
1.36 +try {
1.37 + assertEq(get(4), 0);
1.38 + set(0, 42);
1.39 + assertEq(get(0), 0);
1.40 +} catch (e) {
1.41 + assertEq(String(e).indexOf("InternalError"), 0);
1.42 +}
1.43 +
1.44 +function f2(stdlib, foreign, buffer) {
1.45 + "use asm";
1.46 + var i32 = new stdlib.Int32Array(buffer);
1.47 + var ffi = foreign.ffi;
1.48 + function inner(i) {
1.49 + i=i|0;
1.50 + ffi();
1.51 + return i32[i>>2]|0
1.52 + }
1.53 + return inner
1.54 +}
1.55 +if (isAsmJSCompilationAvailable())
1.56 + assertEq(isAsmJSModule(f2), true);
1.57 +
1.58 +var i32 = new Int32Array(1024);
1.59 +var buffer = i32.buffer;
1.60 +var threw = false;
1.61 +function ffi() {
1.62 + try {
1.63 + neuter(buffer, "same-data");
1.64 + } catch (e) {
1.65 + assertEq(String(e).indexOf("InternalError"), 0);
1.66 + threw = true;
1.67 + }
1.68 + try {
1.69 + neuter(buffer, "change-data");
1.70 + } catch (e) {
1.71 + assertEq(String(e).indexOf("InternalError"), 0);
1.72 + threw = true;
1.73 + }
1.74 +}
1.75 +var inner = f2(this, {ffi:ffi}, buffer);
1.76 +if (isAsmJSCompilationAvailable())
1.77 + assertEq(isAsmJSFunction(inner), true);
1.78 +i32[2] = 13;
1.79 +var result = inner(8);
1.80 +if (threw)
1.81 + assertEq(result, 13);
1.82 +else
1.83 + assertEq(result, 0);
1.84 +
