breakpoint-dot-generator.js

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

g.eval(`

function* func() {

`);

const d = new Debugger();

const dg = d.addDebuggee(g);

const script = dg.makeDebuggeeValue(g.func).script;

// The following test assumes the above `func` function has the following

// bytecode sequences:

//

// 00000:  Generator                       # GENERATOR

// 00001:  SetAliasedVar ".generator"      # GENERATOR

// 00006:  InitialYield 0                  # RVAL GENERATOR RESUMEKIND

// Setting a breakpoint at `SetAliasedVar ".generator"` should be disallow.

let caught = false;

try {

  script.setBreakpoint(1, {});

} catch (e) {

  caught = true;

  assertEq(e.message.includes("not allowed"), true);

assertEq(caught, true);

// Setting breakpoints to other opcodes should be allowed.

script.setBreakpoint(0, {});

script.setBreakpoint(6, {});

// Offset 1 shouldn't be exposed.

assertEq(script.getPossibleBreakpoints().some(p => p.offset == 1), false);

assertEq(script.getAllColumnOffsets().some(p => p.offset == 1), false);

assertEq(script.getEffectfulOffsets().includes(1), false);