stringbuffer-3.js - mozsearch

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// |jit-test| skip-if: !getBuildConfiguration("debug")

// stringRepresentation and the bufferRefCount field aren't available in

// all builds.

// When a JS string with a StringBuffer is passed to a different zone, the buffer

// should be shared instead of copied.

gczeal(0);

let g = newGlobal({newCompartment: true}); // Implies new-zone.

let s1 = newString("abcdefghijklmnopqrstuvwxyz", {newStringBuffer: true, tenured: true});

assertEq(JSON.parse(stringRepresentation(s1)).bufferRefCount, 1);

g.s2 = s1;

assertEq(JSON.parse(stringRepresentation(s1)).bufferRefCount, 2);

let s3 = g.s2;

assertEq(JSON.parse(stringRepresentation(s1)).bufferRefCount, 3);