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improve code reuse (#2542)

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This commit is contained in:
Alex Lam S.L
2017-12-01 03:40:46 +08:00
committed by GitHub
parent c58d3936a3
commit 172079a47f
4 changed files with 37 additions and 30 deletions
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18
lib/ast.js
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@@ -898,24 +898,6 @@ TreeWalker.prototype = {
}
}
},
in_boolean_context: function() {
var stack = this.stack;
var i = stack.length, self = stack[--i];
while (i > 0) {
var p = stack[--i];
if ((p instanceof AST_If && p.condition === self) ||
(p instanceof AST_Conditional && p.condition === self) ||
(p instanceof AST_DWLoop && p.condition === self) ||
(p instanceof AST_For && p.condition === self) ||
(p instanceof AST_UnaryPrefix && p.operator == "!" && p.expression === self))
{
return true;
}
if (!(p instanceof AST_Binary && (p.operator == "&&" || p.operator == "||")))
return false;
self = p;
}
},
loopcontrol_target: function(node) {
var stack = this.stack;
if (node.label) for (var i = stack.length; --i >= 0;) {