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;
var loops = 0;
var funcs = 0;
+var labels = 10000;
function rng(max) {
var r = randomBytes(2).readUInt16LE(0) / 65536;
s = 'function ' + name + '(' + createParams() + '){' + createFunctions(rng(5) + 1, Math.ceil(recurmax * 0.7), NOT_GLOBAL, ANY_TYPE, canThrow, stmtDepth) + '}\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() + '){' + createStatements(3, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth) + '}\n';
}
VAR_NAMES.length = namesLenBefore;
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;
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 ';';
case STMT_EXPR:
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) + ';';
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) {
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);
}