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fix corner case in inline (#5317)

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fixes #5316
This commit is contained in:
Alex Lam S.L
2022-01-27 23:17:17 +00:00
committed by GitHub
parent 67438f3ff9
commit 3693bde2dd
2 changed files with 69 additions and 21 deletions
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40
lib/compress.js
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@@ -10515,16 +10515,8 @@ Compressor.prototype.compress = function(node) {
append_var(decl_var, expr_var, name, value);
if (!in_loop) continue;
if (arg_used.has(name.name)) continue;
var def = name.definition();
if (def.orig.length == 1 && fn.functions.has(name.name)) continue;
var sym = make_node(AST_SymbolRef, name, name);
def.assignments++;
def.references.push(sym);
expr_loop.push(make_node(AST_Assign, var_def, {
operator: "=",
left: sym,
right: make_node(AST_Undefined, name),
}));
if (name.definition().orig.length == 1 && fn.functions.has(name.name)) continue;
expr_loop.push(init_ref(compressor, name));
}
});
[].push.apply(decls, decl_var);
@@ -13001,6 +12993,22 @@ Compressor.prototype.compress = function(node) {
return found;
}
function init_ref(compressor, name) {
var sym = make_node(AST_SymbolRef, name, name);
var def = name.definition();
def.assignments++;
def.references.push(sym);
var assign = make_node(AST_Assign, name, {
operator: "=",
left: sym,
right: make_node(AST_Undefined, name).transform(compressor),
});
sym.fixed = function() {
return assign.right;
};
return assign;
}
(function(def) {
def(AST_Node, noop);
def(AST_Assign, noop);
@@ -13183,17 +13191,7 @@ Compressor.prototype.compress = function(node) {
})) return;
var sym = def.orig[0];
if (sym instanceof AST_SymbolCatch) return;
var ref = make_node(AST_SymbolRef, sym, flatten_var(sym));
def = ref.definition();
def.assignments++;
def.references.push(ref);
body.push(make_node(AST_SimpleStatement, sym, {
body: make_node(AST_Assign, sym, {
operator: "=",
left: ref,
right: make_node(AST_Undefined, sym).transform(compressor),
}),
}));
body.push(make_node(AST_SimpleStatement, sym, { body: init_ref(compressor, flatten_var(sym)) }));
});
if (fn.variables.has("NaN")) scope.transform(new TreeTransformer(function(node) {
if (node instanceof AST_NaN) return make_node(AST_Binary, node, {