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backport test scripts

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This commit is contained in:
alexlamsl
2017-05-06 23:48:28 +08:00
parent 7305ba0296
commit dda4eb96e1
3 changed files with 224 additions and 109 deletions
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4
test/benchmark.js
View File

@@ -11,8 +11,8 @@ if (!args.length) {
}
args.push("--stats");
var urls = [
"https://code.jquery.com/jquery-3.1.1.js",
"https://code.angularjs.org/1.6.1/angular.js",
"https://code.jquery.com/jquery-3.2.1.js",
"https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.4/angular.js",
"https://cdnjs.cloudflare.com/ajax/libs/mathjs/3.9.0/math.js",
"https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.js",
"https://unpkg.com/react@15.3.2/dist/react.js",

38
test/sandbox.js
View File

@@ -1,15 +1,35 @@
var vm = require("vm");
function safe_log(arg) {
if (arg) switch (typeof arg) {
case "function":
return arg.toString();
case "object":
if (/Error$/.test(arg.name)) return arg.toString();
arg.constructor.toString();
for (var key in arg) {
arg[key] = safe_log(arg[key]);
}
}
return arg;
}
var FUNC_TOSTRING = [
"Function.prototype.toString = Function.prototype.valueOf = function() {",
" var ids = [];",
" var id = 0;",
" return function() {",
" var i = ids.indexOf(this);",
" if (i < 0) {",
" i = ids.length;",
" ids.push(this);",
' if (this === Array) return "[Function: Array]";',
' if (this === Object) return "[Function: Object]";',
" var i = this.name;",
' if (typeof i != "number") {',
" i = ++id;",
' Object.defineProperty(this, "name", {',
" get: function() {",
" return i;",
" }",
" });",
" }",
' return "[Function: __func_" + i + "__]";',
' return "[Function: " + i + "]";',
" }",
"}();",
].join("\n");
@@ -21,16 +41,14 @@ exports.run_code = function(code) {
};
try {
vm.runInNewContext([
"!function() {",
FUNC_TOSTRING,
"!function() {",
code,
"}();",
].join("\n"), {
console: {
log: function() {
return console.log.apply(console, [].map.call(arguments, function(arg) {
return typeof arg == "function" || arg && /Error$/.test(arg.name) ? arg.toString() : arg;
}));
return console.log.apply(console, [].map.call(arguments, safe_log));
}
}
}, { timeout: 5000 });

291
test/ufuzz.js
View File

@@ -2,7 +2,7 @@
// derived from https://github.com/qfox/uglyfuzzer by Peter van der Zee
"use strict";
// check both cli and file modes of nodejs (!). See #1695 for details. and the various settings of uglify.
// check both CLI and file modes of nodejs (!). See #1695 for details. and the various settings of uglify.
// bin/uglifyjs s.js -c && bin/uglifyjs s.js -c passes=3 && bin/uglifyjs s.js -c passes=3 -m
// cat s.js | node && node s.js && bin/uglifyjs s.js -c | node && bin/uglifyjs s.js -c passes=3 | node && bin/uglifyjs s.js -c passes=3 -m | node
@@ -20,49 +20,26 @@ var MAX_GENERATED_TOPLEVELS_PER_RUN = 1;
var MAX_GENERATION_RECURSION_DEPTH = 12;
var INTERVAL_COUNT = 100;
var STMT_BLOCK = 0;
var STMT_IF_ELSE = 1;
var STMT_DO_WHILE = 2;
var STMT_WHILE = 3;
var STMT_FOR_LOOP = 4;
var STMT_SEMI = 5;
var STMT_EXPR = 6;
var STMT_SWITCH = 7;
var STMT_VAR = 8;
var STMT_RETURN_ETC = 9;
var STMT_FUNC_EXPR = 10;
var STMT_TRY = 11;
var STMT_C = 12;
var STMTS_TO_USE = [
STMT_BLOCK,
STMT_IF_ELSE,
STMT_DO_WHILE,
STMT_WHILE,
STMT_FOR_LOOP,
STMT_SEMI,
STMT_EXPR,
STMT_SWITCH,
STMT_VAR,
STMT_RETURN_ETC,
STMT_FUNC_EXPR,
STMT_TRY,
STMT_C,
];
var STMT_ARG_TO_ID = {
block: STMT_BLOCK,
ifelse: STMT_IF_ELSE,
dowhile: STMT_DO_WHILE,
while: STMT_WHILE,
forloop: STMT_FOR_LOOP,
semi: STMT_SEMI,
expr: STMT_EXPR,
switch: STMT_SWITCH,
var: STMT_VAR,
stop: STMT_RETURN_ETC,
funcexpr: STMT_FUNC_EXPR,
try: STMT_TRY,
c: STMT_C,
};
var STMT_ARG_TO_ID = Object.create(null);
var STMTS_TO_USE = [];
function STMT_(name) {
return STMT_ARG_TO_ID[name] = STMTS_TO_USE.push(STMTS_TO_USE.length) - 1;
}
var STMT_BLOCK = STMT_("block");
var STMT_IF_ELSE = STMT_("ifelse");
var STMT_DO_WHILE = STMT_("dowhile");
var STMT_WHILE = STMT_("while");
var STMT_FOR_LOOP = STMT_("forloop");
var STMT_FOR_IN = STMT_("forin");
var STMT_SEMI = STMT_("semi");
var STMT_EXPR = STMT_("expr");
var STMT_SWITCH = STMT_("switch");
var STMT_VAR = STMT_("var");
var STMT_RETURN_ETC = STMT_("stop");
var STMT_FUNC_EXPR = STMT_("funcexpr");
var STMT_TRY = STMT_("try");
var STMT_C = STMT_("c");
var STMT_FIRST_LEVEL_OVERRIDE = -1;
var STMT_SECOND_LEVEL_OVERRIDE = -1;
@@ -72,6 +49,7 @@ var num_iterations = +process.argv[2] || 1/0;
var verbose = false; // log every generated test
var verbose_interval = false; // log every 100 generated tests
var verbose_error = false;
var use_strict = false;
for (var i = 2; i < process.argv.length; ++i) {
switch (process.argv[i]) {
case '-v':
@@ -101,6 +79,9 @@ for (var i = 2; i < process.argv.length; ++i) {
STMT_SECOND_LEVEL_OVERRIDE = STMT_ARG_TO_ID[name];
if (!(STMT_SECOND_LEVEL_OVERRIDE >= 0)) throw new Error('Unknown statement name; use -? to get a list');
break;
case '--use-strict':
use_strict = true;
break;
case '--stmt-depth-from-func':
STMT_COUNT_FROM_GLOBAL = false;
break;
@@ -127,6 +108,7 @@ for (var i = 2; i < process.argv.length; ++i) {
console.log('-r <int>: maximum recursion depth for generator (higher takes longer)');
console.log('-s1 <statement name>: force the first level statement to be this one (see list below)');
console.log('-s2 <statement name>: force the second level statement to be this one (see list below)');
console.log('--use-strict: generate "use strict"');
console.log('--stmt-depth-from-func: reset statement depth counter at each function, counts from global otherwise');
console.log('--only-stmt <statement names>: a comma delimited white list of statements that may be generated');
console.log('--without-stmt <statement names>: a comma delimited black list of statements never to generate');
@@ -296,15 +278,26 @@ var TYPEOF_OUTCOMES = [
var loops = 0;
var funcs = 0;
var labels = 10000;
function rng(max) {
var r = randomBytes(2).readUInt16LE(0) / 65536;
return Math.floor(max * r);
}
function strictMode() {
return use_strict && rng(4) == 0 ? '"use strict";' : '';
}
function createTopLevelCode() {
if (rng(2) === 0) return createStatements(3, MAX_GENERATION_RECURSION_DEPTH, CANNOT_THROW, CANNOT_BREAK, CANNOT_CONTINUE, CANNOT_RETURN, 0);
return createFunctions(rng(MAX_GENERATED_TOPLEVELS_PER_RUN) + 1, MAX_GENERATION_RECURSION_DEPTH, IN_GLOBAL, ANY_TYPE, CANNOT_THROW, 0);
return [
strictMode(),
'var a = 100, b = 10, c = 0;',
rng(2) == 0
? createStatements(3, MAX_GENERATION_RECURSION_DEPTH, CANNOT_THROW, CANNOT_BREAK, CANNOT_CONTINUE, CANNOT_RETURN, 0)
: createFunctions(rng(MAX_GENERATED_TOPLEVELS_PER_RUN) + 1, MAX_GENERATION_RECURSION_DEPTH, IN_GLOBAL, ANY_TYPE, CANNOT_THROW, 0),
'console.log(null, a, b, c);' // preceding `null` makes for a cleaner output (empty string still shows up etc)
].join('\n');
}
function createFunctions(n, recurmax, inGlobal, noDecl, canThrow, stmtDepth) {
@@ -342,10 +335,22 @@ function createFunction(recurmax, inGlobal, noDecl, canThrow, stmtDepth) {
var s = '';
if (rng(5) === 0) {
// functions with functions. lower the recursion to prevent a mess.
s = 'function ' + name + '(' + createParams() + '){' + createFunctions(rng(5) + 1, Math.ceil(recurmax * 0.7), NOT_GLOBAL, ANY_TYPE, canThrow, stmtDepth) + '}\n';
s = [
'function ' + name + '(' + createParams() + '){',
strictMode(),
createFunctions(rng(5) + 1, Math.ceil(recurmax * 0.7), NOT_GLOBAL, ANY_TYPE, canThrow, stmtDepth),
'}',
''
].join('\n');
} else {
// functions with statements
s = 'function ' + name + '(' + createParams() + '){' + createStatements(3, recurmax, canThrow, CANNOT_THROW, CANNOT_CONTINUE, CAN_RETURN, stmtDepth) + '}\n';
s = [
'function ' + name + '(' + createParams() + '){',
strictMode(),
createStatements(3, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth),
'}',
''
].join('\n');
}
VAR_NAMES.length = namesLenBefore;
@@ -367,6 +372,40 @@ function createStatements(n, recurmax, canThrow, canBreak, canContinue, cannotRe
return s;
}
function enableLoopControl(flag, defaultValue) {
return Array.isArray(flag) && flag.indexOf("") < 0 ? flag.concat("") : flag || defaultValue;
}
function createLabel(canBreak, canContinue) {
var label;
if (rng(10) < 3) {
label = ++labels;
if (Array.isArray(canBreak)) {
canBreak = canBreak.slice();
} else {
canBreak = canBreak ? [ "" ] : [];
}
canBreak.push(label);
if (Array.isArray(canContinue)) {
canContinue = canContinue.slice();
} else {
canContinue = canContinue ? [ "" ] : [];
}
canContinue.push(label);
}
return {
break: canBreak,
continue: canContinue,
target: label ? "L" + label + ": " : ""
};
}
function getLabel(label) {
if (!Array.isArray(label)) return "";
label = label[rng(label.length)];
return label && " L" + label;
}
function createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) {
++stmtDepth;
var loop = ++loops;
@@ -382,17 +421,36 @@ function createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn
switch (target) {
case STMT_BLOCK:
return '{' + createStatements(rng(5) + 1, recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) + '}';
var label = createLabel(canBreak);
return label.target + '{' + createStatements(rng(5) + 1, recurmax, canThrow, label.break, canContinue, cannotReturn, stmtDepth) + '}';
case STMT_IF_ELSE:
return 'if (' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ')' + createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) + (rng(2) === 1 ? ' else ' + createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) : '');
case STMT_DO_WHILE:
return '{var brake' + loop + ' = 5; do {' + createStatement(recurmax, canThrow, CAN_BREAK, CAN_CONTINUE, cannotReturn, stmtDepth) + '} while ((' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ') && --brake' + loop + ' > 0);}';
var label = createLabel(canBreak, canContinue);
canBreak = label.break || enableLoopControl(canBreak, CAN_BREAK);
canContinue = label.continue || enableLoopControl(canContinue, CAN_CONTINUE);
return '{var brake' + loop + ' = 5; ' + label.target + 'do {' + createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) + '} while ((' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ') && --brake' + loop + ' > 0);}';
case STMT_WHILE:
return '{var brake' + loop + ' = 5; while ((' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ') && --brake' + loop + ' > 0)' + createStatement(recurmax, canThrow, CAN_BREAK, CAN_CONTINUE, cannotReturn, stmtDepth) + '}';
var label = createLabel(canBreak, canContinue);
canBreak = label.break || enableLoopControl(canBreak, CAN_BREAK);
canContinue = label.continue || enableLoopControl(canContinue, CAN_CONTINUE);
return '{var brake' + loop + ' = 5; ' + label.target + 'while ((' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ') && --brake' + loop + ' > 0)' + createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) + '}';
case STMT_FOR_LOOP:
return 'for (var brake' + loop + ' = 5; (' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ') && brake' + loop + ' > 0; --brake' + loop + ')' + createStatement(recurmax, canThrow, CAN_BREAK, CAN_CONTINUE, cannotReturn, stmtDepth);
var label = createLabel(canBreak, canContinue);
canBreak = label.break || enableLoopControl(canBreak, CAN_BREAK);
canContinue = label.continue || enableLoopControl(canContinue, CAN_CONTINUE);
return label.target + 'for (var brake' + loop + ' = 5; (' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ') && brake' + loop + ' > 0; --brake' + loop + ')' + createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth);
case STMT_FOR_IN:
var label = createLabel(canBreak, canContinue);
canBreak = label.break || enableLoopControl(canBreak, CAN_BREAK);
canContinue = label.continue || enableLoopControl(canContinue, CAN_CONTINUE);
var optElementVar = '';
if (rng(5) > 1) {
optElementVar = 'c = 1 + c; var ' + createVarName(MANDATORY) + ' = expr' + loop + '[key' + loop + ']; ';
}
return '{var expr' + loop + ' = ' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + '; ' + label.target + ' for (var key' + loop + ' in expr' + loop + ') {' + optElementVar + createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) + '}}';
case STMT_SEMI:
return ';';
return use_strict && rng(20) === 0 ? '"use strict";' : ';';
case STMT_EXPR:
return createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ';';
case STMT_SWITCH:
@@ -424,8 +482,8 @@ function createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn
case 1:
case 2:
case 3:
if (canBreak && rng(5) === 0) return 'break;';
if (canContinue && rng(5) === 0) return 'continue;';
if (canBreak && rng(5) === 0) return 'break' + getLabel(canBreak) + ';';
if (canContinue && rng(5) === 0) return 'continue' + getLabel(canContinue) + ';';
if (cannotReturn) return createExpression(recurmax, NO_COMMA, stmtDepth, canThrow) + ';';
if (rng(3) == 0) return '/*3*/return;';
return 'return ' + createExpression(recurmax, NO_COMMA, stmtDepth, canThrow) + ';';
@@ -470,25 +528,27 @@ function createStatement(recurmax, canThrow, canBreak, canContinue, cannotReturn
function createSwitchParts(recurmax, n, canThrow, canBreak, canContinue, cannotReturn, stmtDepth) {
var hadDefault = false;
var s = '';
var s = [''];
canBreak = enableLoopControl(canBreak, CAN_BREAK);
while (n-- > 0) {
//hadDefault = n > 0; // disables weird `default` clause positioning (use when handling destabilizes)
if (hadDefault || rng(5) > 0) {
s += '' +
'case ' + createExpression(recurmax, NO_COMMA, stmtDepth, canThrow) + ':\n' +
createStatements(rng(3) + 1, recurmax, canThrow, CAN_BREAK, canContinue, cannotReturn, stmtDepth) +
'\n' +
(rng(10) > 0 ? ' break;' : '/* fall-through */') +
'\n';
s.push(
'case ' + createExpression(recurmax, NO_COMMA, stmtDepth, canThrow) + ':',
createStatements(rng(3) + 1, recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth),
rng(10) > 0 ? ' break;' : '/* fall-through */',
''
);
} else {
hadDefault = true;
s += '' +
'default:\n' +
createStatements(rng(3) + 1, recurmax, canThrow, CAN_BREAK, canContinue, cannotReturn, stmtDepth) +
'\n';
s.push(
'default:',
createStatements(rng(3) + 1, recurmax, canThrow, canBreak, canContinue, cannotReturn, stmtDepth),
''
);
}
}
return s;
return s.join('\n');
}
function createExpression(recurmax, noComma, stmtDepth, canThrow) {
@@ -530,37 +590,66 @@ function _createExpression(recurmax, noComma, stmtDepth, canThrow) {
return createExpression(recurmax, COMMA_OK, stmtDepth, canThrow);
case p++:
return createExpression(recurmax, noComma, stmtDepth, canThrow) + '?' + createExpression(recurmax, NO_COMMA, stmtDepth, canThrow) + ':' + createExpression(recurmax, noComma, stmtDepth, canThrow);
case p++:
case p++:
var nameLenBefore = VAR_NAMES.length;
var name = createVarName(MAYBE); // note: this name is only accessible from _within_ the function. and immutable at that.
if (name === 'c') name = 'a';
var s = '';
switch(rng(4)) {
if (name == 'c') name = 'a';
var s = [];
switch (rng(5)) {
case 0:
s = '(function ' + name + '(){' + createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth) + '})()';
s.push(
'(function ' + name + '(){',
strictMode(),
createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth),
'})()'
);
break;
case 1:
s = '+function ' + name + '(){' + createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth) + '}()';
s.push(
'+function ' + name + '(){',
strictMode(),
createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth),
'}()'
);
break;
case 2:
s = '!function ' + name + '(){' + createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth) + '}()';
s.push(
'!function ' + name + '(){',
strictMode(),
createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth),
'}()'
);
break;
case 3:
s.push(
'void function ' + name + '(){',
strictMode(),
createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth),
'}()'
);
break;
default:
s = 'void function ' + name + '(){' + createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth) + '}()';
var instantiate = rng(4) ? 'new ' : '';
s.push(
instantiate + 'function ' + name + '(){',
strictMode()
);
if (instantiate) for (var i = rng(4); --i >= 0;) {
if (rng(2)) s.push('this.' + getDotKey() + createAssignment() + _createBinaryExpr(recurmax, noComma, stmtDepth, canThrow) + ';');
else s.push('this[' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ']' + createAssignment() + _createBinaryExpr(recurmax, noComma, stmtDepth, canThrow) + ';');
}
s.push(
createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth),
'}'
);
break;
}
VAR_NAMES.length = nameLenBefore;
return s;
return s.join('\n');
case p++:
case p++:
return createTypeofExpr(recurmax, stmtDepth, canThrow);
case p++:
return [
'new function() {',
rng(2) ? '' : createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ';',
'return ' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow) + ';',
'}'
].join('\n');
case p++:
case p++:
// more like a parser test but perhaps comment nodes mess up the analysis?
@@ -682,22 +771,23 @@ function _createBinaryExpr(recurmax, noComma, stmtDepth, canThrow) {
function _createSimpleBinaryExpr(recurmax, noComma, stmtDepth, canThrow) {
// intentionally generate more hardcore ops
if (--recurmax < 0) return createValue();
var assignee, expr;
switch (rng(30)) {
case 0:
return '(c = c + 1, ' + _createSimpleBinaryExpr(recurmax, noComma, stmtDepth, canThrow) + ')';
case 1:
return '(' + createUnarySafePrefix() + '(' + _createSimpleBinaryExpr(recurmax, noComma, stmtDepth, canThrow) + '))';
case 2:
var assignee = getVarName();
assignee = getVarName();
return '(' + assignee + createAssignment() + _createBinaryExpr(recurmax, noComma, stmtDepth, canThrow) + ')';
case 3:
var assignee = getVarName();
var expr = '(' + assignee + '[' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow)
assignee = getVarName();
expr = '(' + assignee + '[' + createExpression(recurmax, COMMA_OK, stmtDepth, canThrow)
+ ']' + createAssignment() + _createBinaryExpr(recurmax, noComma, stmtDepth, canThrow) + ')';
return canThrow && rng(10) == 0 ? expr : '(' + assignee + ' && ' + expr + ')';
case 4:
var assignee = getVarName();
var expr = '(' + assignee + '.' + getDotKey() + createAssignment()
assignee = getVarName();
expr = '(' + assignee + '.' + getDotKey() + createAssignment()
+ _createBinaryExpr(recurmax, noComma, stmtDepth, canThrow) + ')';
return canThrow && rng(10) == 0 ? expr : '(' + assignee + ' && ' + expr + ')';
default:
@@ -802,8 +892,8 @@ var default_options = {
mangle: {
"cache": null,
"eval": false,
"ie8": false,
"keep_fnames": false,
"screw_ie8": true,
"toplevel": false,
},
output: infer_options(UglifyJS.OutputStream),
@@ -858,17 +948,27 @@ function log(options) {
} else {
console.log("// !!! uglify failed !!!");
console.log(uglify_code.stack);
if (typeof original_result != "string") {
console.log();
console.log();
console.log("original stacktrace:");
console.log(original_result.stack);
}
}
console.log("minify(options):");
options = JSON.parse(options);
console.log(options);
console.log();
if (!ok) {
if (!ok && typeof uglify_code == "string") {
Object.keys(default_options).forEach(log_suspects.bind(null, options));
console.log("!!!!!! Failed... round", round);
}
}
var fallback_options = [ JSON.stringify({
compress: false,
mangle: false
}) ];
var minify_options = require("./ufuzz.json").map(function(options) {
options.fromString = true;
return JSON.stringify(options);
@@ -882,13 +982,9 @@ for (var round = 1; round <= num_iterations; round++) {
loops = 0;
funcs = 0;
original_code = [
"var a = 100, b = 10, c = 0;",
createTopLevelCode(),
"console.log(null, a, b, c);" // preceding `null` makes for a cleaner output (empty string still shows up etc)
].join("\n");
minify_options.forEach(function(options) {
original_code = createTopLevelCode();
original_result = sandbox.run_code(original_code);
(typeof original_result != "string" ? fallback_options : minify_options).forEach(function(options) {
try {
uglify_code = UglifyJS.minify(original_code, JSON.parse(options)).code;
} catch (e) {
@@ -897,9 +993,10 @@ for (var round = 1; round <= num_iterations; round++) {
ok = typeof uglify_code == "string";
if (ok) {
original_result = sandbox.run_code(original_code);
uglify_result = sandbox.run_code(uglify_code);
ok = sandbox.same_stdout(original_result, uglify_result);
} else if (typeof original_result != "string") {
ok = uglify_code.name == original_result.name;
}
if (verbose || (verbose_interval && !(round % INTERVAL_COUNT)) || !ok) log(options);
else if (verbose_error && typeof original_result != "string") {