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fix corner case in inline (#4266)

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fixes #4265
This commit is contained in:
Alex Lam S.L
2020-11-08 10:50:08 +00:00
committed by GitHub
parent 1cbd07e789
commit 810cd40356
2 changed files with 36 additions and 3 deletions
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8
lib/compress.js
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@@ -7166,7 +7166,7 @@ merge(Compressor.prototype, {
return node;
}
}
var child, in_loop, scope;
var insert, in_loop, scope;
if (replacing && can_inject_symbols()) {
fn._squeezed = true;
if (exp !== fn) fn.parent_scope = exp.scope;
@@ -7336,7 +7336,7 @@ merge(Compressor.prototype, {
function can_inject_symbols() {
var defined = Object.create(null);
var level = 0;
var level = 0, child;
scope = compressor.self();
while (!(scope instanceof AST_Scope)) {
if (scope.variables) scope.variables.each(function(def) {
@@ -7357,6 +7357,8 @@ merge(Compressor.prototype, {
if (scope.fixed_value() instanceof AST_Scope) return false;
}
}
insert = scope.body.indexOf(child) + 1;
if (!insert) return false;
var safe_to_inject = (!(scope instanceof AST_Toplevel) || compressor.toplevel.vars)
&& (exp !== fn || fn.parent_scope.resolve() === compressor.find_parent(AST_Scope));
var inline = compressor.option("inline");
@@ -7459,7 +7461,7 @@ merge(Compressor.prototype, {
return true;
}
});
args.unshift(scope.body.indexOf(child) + 1, 0);
args.unshift(insert, 0);
if (decls.length) args.push(make_node(AST_Var, fn, {
definitions: decls
}));