wasm-binary-sources.js

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// |jit-test| skip-if: !wasmDebuggingEnabled()

// Tests that wasm module scripts have access to binary sources.

load(libdir + "asserts.js");

load(libdir + "array-compare.js");

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

var dbg = new Debugger(g);

var s;

dbg.onNewScript = (script) => {

  s = script;

g.eval(`o = new WebAssembly.Instance(new WebAssembly.Module(wasmTextToBinary('(module (func) (export "" (func 0)))')));`);

assertEq(s.format, "wasm");

var source = s.source;

// The text is never generated with the native Debugger API.

assertEq(source.text.includes('module'), false);

g.eval(`o = new WebAssembly.Instance(new WebAssembly.Module(wasmTextToBinary('(module (func) (export "" (func 0)))')));`);

assertEq(s.format, "wasm");

var source2 = s.source;

// The text is predefined if wasm binary sources are enabled.

assertEq(source2.text, '[debugger missing wasm binary-to-text conversion]');

// The binary contains Uint8Array which is equal to wasm bytecode;

arraysEqual(source2.binary, wasmTextToBinary('(module (func) (export "" (func 0)))'));