syntax-parsed-arrow-then-sourcemap-directive.js

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// |reftest| skip-if(!xulRuntime.shell) -- needs Debugger

/*

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/licenses/publicdomain/

*/

//-----------------------------------------------------------------------------

var BUGNUMBER = 1596706;

var summary =

  "Properly apply a source map directive that's only tokenized by a syntax " +

  "parser (because the directive comment appears immediately after an arrow " +

  "function with expression body)";

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

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

var dbg = new Debugger(g);

var script;

dbg.onDebuggerStatement = function (frame)

  script = frame.script;

};

function checkSourceMapFor(arrowFunc, sourceMap)

  g.evaluate(`${arrowFunc}

//# sourceMappingURL=${sourceMap}

debugger;`);

  assertEq(script instanceof Debugger.Script, true,

           "expected a Debugger.Script for " + arrowFunc);

  var source = script.source;

  assertEq(source instanceof Debugger.Source, true,

           "expected a Debugger.Source for " + arrowFunc);

  assertEq(source.sourceMapURL, sourceMap,

           "unexpected source map for " + arrowFunc);

// block followed by semicolon

checkSourceMapFor("x=>{};", "http://example.com/foo.js");

// block not followed by semicolon

checkSourceMapFor("x=>{}", "http://example.com/bar.js");

// expr followed by semicolon

checkSourceMapFor("x=>y;", "http://example.com/baz.js");

// expr not followed by semicolon

checkSourceMapFor("x=>y", "http://example.com/bar.js");

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");