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group IIFE generation & insert "use strict"

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This commit is contained in:
alexlamsl 2017-04-23 05:11:07 +08:00
parent 15224209f4
commit 4cda977910
1 changed files with 37 additions and 15 deletions
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52
test/ufuzz.js
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@ -590,37 +590,59 @@ function _createExpression(recurmax, noComma, stmtDepth, canThrow) {
return createExpression(recurmax, COMMA_OK, stmtDepth, canThrow); return createExpression(recurmax, COMMA_OK, stmtDepth, canThrow);
case p++: case p++:
return createExpression(recurmax, noComma, stmtDepth, canThrow) + '?' + createExpression(recurmax, NO_COMMA, stmtDepth, canThrow) + ':' + createExpression(recurmax, noComma, stmtDepth, canThrow); return createExpression(recurmax, noComma, stmtDepth, canThrow) + '?' + createExpression(recurmax, NO_COMMA, stmtDepth, canThrow) + ':' + createExpression(recurmax, noComma, stmtDepth, canThrow);
case p++:
case p++: case p++:
var nameLenBefore = VAR_NAMES.length; var nameLenBefore = VAR_NAMES.length;
var name = createVarName(MAYBE); // note: this name is only accessible from _within_ the function. and immutable at that. var name = createVarName(MAYBE); // note: this name is only accessible from _within_ the function. and immutable at that.
if (name === 'c') name = 'a'; if (name == 'c') name = 'a';
var s = ''; var s = [];
switch(rng(4)) { switch (rng(5)) {
case 0: 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; break;
case 1: 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; break;
case 2: 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; break;
default: default:
s = 'void function ' + name + '(){' + createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth) + '}()'; s.push(
'new function ' + name + '(){',
strictMode(),
createStatements(rng(5) + 1, recurmax, canThrow, CANNOT_BREAK, CANNOT_CONTINUE, CAN_RETURN, stmtDepth),
'}'
);
break; break;
} }
VAR_NAMES.length = nameLenBefore; VAR_NAMES.length = nameLenBefore;
return s; return s.join('\n');
case p++: case p++:
case p++: case p++:
return createTypeofExpr(recurmax, stmtDepth, canThrow); 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++:
case p++: case p++:
// more like a parser test but perhaps comment nodes mess up the analysis? // more like a parser test but perhaps comment nodes mess up the analysis?