wasm-09.js - mozsearch

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// |jit-test| test-also=--wasm-compiler=optimizing; skip-if: !wasmDebuggingEnabled()

// Tests debugEnabled state of wasm when allowUnobservedWasm == true.

load(libdir + "asserts.js");

// Checking that there are no offsets are present in a wasm instance script for

// which debug mode was not enabled.

function getWasmScriptWithoutAllowUnobservedWasm(wast) {

    var sandbox = newGlobal({newCompartment: true});

    var dbg = new Debugger();

    dbg.allowUnobservedWasm = true;

    dbg.addDebuggee(sandbox);

    sandbox.eval(`

        var wasm = wasmTextToBinary('${wast}');

        var m = new WebAssembly.Instance(new WebAssembly.Module(wasm));

`);

    // Attaching after wasm instance is created.

    var wasmScript = dbg.findScripts().filter(s => s.format == 'wasm')[0];

    return wasmScript;

var wasmScript1 = getWasmScriptWithoutAllowUnobservedWasm('(module (func (nop)))');

var wasmLines1 = wasmScript1.source.text.split('\n');

assertEq(wasmScript1.startLine, 1);

assertEq(wasmScript1.lineCount, 0);

assertEq(wasmLines1.every((l, n) => wasmScript1.getLineOffsets(n + 1).length == 0), true);

// Checking that we must not resolve any location for any offset in a wasm

// instance which debug mode was not enabled.

var wasmScript2 = getWasmScriptWithoutAllowUnobservedWasm('(module (func (nop)))');

for (var i = wasmTextToBinary('(module (func (nop)))').length - 1; i >= 0; i--)

    assertThrowsInstanceOf(() => wasmScript2.getOffsetLocation(i), Error);