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Diffstat (limited to 'js/src/jit-test/tests/wasm/ref-types/externref-global-object.js')
-rw-r--r-- | js/src/jit-test/tests/wasm/ref-types/externref-global-object.js | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/ref-types/externref-global-object.js b/js/src/jit-test/tests/wasm/ref-types/externref-global-object.js new file mode 100644 index 0000000000..806896e9b8 --- /dev/null +++ b/js/src/jit-test/tests/wasm/ref-types/externref-global-object.js @@ -0,0 +1,91 @@ +// |jit-test| skip-if: typeof WebAssembly.Global !== 'function' + +// Dummy object. +function Baguette(calories) { + this.calories = calories; +} + +assertEq(new WebAssembly.Global({value: "externref"}) instanceof WebAssembly.Global, true); + +(function() { + // Test initialization without a value. + let g = new WebAssembly.Global({value: "externref"}); + assertEq(g.value, void 0); + assertErrorMessage(() => g.value = 42, TypeError, /immutable global/); +})(); + +(function() { + // Test initialization with a value. + let g = new WebAssembly.Global({value: "externref"}, null); + assertEq(g.value, null); + assertErrorMessage(() => g.value = 42, TypeError, /immutable global/); + + let obj = {}; + g = new WebAssembly.Global({value: "externref"}, obj); + assertEq(g.value, obj); + assertErrorMessage(() => g.value = 42, TypeError, /immutable global/); + + g = new WebAssembly.Global({value: "externref"}, 1337); + assertEq(typeof g.value, "number"); + assertEq(+g.value, 1337); + + g = new WebAssembly.Global({value: "externref"}, 13.37); + assertEq(typeof g.value, "number"); + assertEq(+g.value, 13.37); + + g = new WebAssembly.Global({value: "externref"}, "string"); + assertEq(typeof g.value, "string"); + assertEq(g.value.toString(), "string"); + + g = new WebAssembly.Global({value: "externref"}, true); + assertEq(typeof g.value, "boolean"); + assertEq(!!g.value, true); + + g = new WebAssembly.Global({value: "externref"}, Symbol("status")); + assertEq(typeof g.value, "symbol"); + assertEq(g.value.toString(), "Symbol(status)"); + + g = new WebAssembly.Global({value: "externref"}, undefined); + assertEq(g.value, undefined); +})(); + +(function() { + // Test mutable property and assignment. + let g = new WebAssembly.Global({value: "externref", mutable: true}, null); + assertEq(g.value, null); + + let obj = { x: 42 }; + g.value = obj; + assertEq(g.value, obj); + assertEq(g.value.x, 42); + + obj = null; + assertEq(g.value.x, 42); + + let otherObj = { y : 35 }; + g.value = otherObj; + assertEq(g.value, otherObj); +})(); + +(function() { + // Test tracing. + let nom = new Baguette(1); + let g = new WebAssembly.Global({value: "externref"}, nom); + nom = null; + gc(); + assertEq(g.value.calories, 1); +})(); + +var global = new WebAssembly.Global({ value: "externref", mutable: true }, null); + +// GCZeal mode 2 implies that every allocation (second parameter = every single +// allocation) will trigger a full GC. +gczeal(2, 1); + +{ + let nomnom = new Baguette(42); + global.value = nomnom; + nomnom = null; +} +new Baguette(); +assertEq(global.value.calories, 42); |