function-flags.js - mozsearch

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load(libdir + 'bytecode-cache.js');

var test;

// Ensure that if a function is encoded we don't encode its "name

// resolved" flag.

test = `

  function f() { delete f.name; return f.hasOwnProperty('name'); }

  f();

evalWithCache(test, { assertEqBytecode: true, assertEqResult: true });

test = `

  function f() { return f.hasOwnProperty('name'); }

  f();

evalWithCache(test, { assertEqBytecode: true, assertEqResult: true });

// Ensure that if a function is encoded we don't encode its "length

// resolved" flag.

test = `

  function f() { delete f.length; return f.hasOwnProperty('length'); }

  f();

evalWithCache(test, { assertEqBytecode: true, assertEqResult: true });

test = `

  function f() { return f.hasOwnProperty('length'); }

  f();

evalWithCache(test, { assertEqBytecode: true, assertEqResult: true });

// And make sure our bytecode is actually not reflecting the flags,

// not that we ignore them on decode.

test = `

  function f() { return f.hasOwnProperty('length') || f.hasOwnProperty('name'); }

  f();

evalWithCache(test, { assertEqBytecode: true, assertEqResult: true });