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simplify logic

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add tests
This commit is contained in:
alexlamsl 2017-03-27 00:04:52 +08:00
parent 8f97e6b176
commit 6c4f559920
2 changed files with 32 additions and 7 deletions
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8
lib/compress.js
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@ -277,12 +277,6 @@ merge(Compressor.prototype, {
d.fixed = false;
}
}
if (node instanceof AST_Lambda) {
node.variables.get("arguments").fixed = null;
node.argnames.forEach(function(arg) {
arg.definition().fixed = null;
});
}
if (node instanceof AST_Defun) {
var d = node.name.definition();
if (!toplevel && d.global || is_safe(d)) {
@ -364,7 +358,7 @@ merge(Compressor.prototype, {
function is_safe(def) {
for (var i = safe_ids.length, id = def.id; --i >= 0;) {
if (safe_ids[i][id]) {
if (def.fixed === null) {
if (def.fixed == null) {
var orig = def.orig[0];
if (orig instanceof AST_SymbolFunarg || orig.name == "arguments") return false;
def.fixed = make_node(AST_Undefined, orig);

31
test/compress/reduce_vars.js
View File

@ -1823,3 +1823,34 @@ redefine_farg_3: {
}
expect_stdout: "object number undefined"
}
delay_def: {
options = {
evaluate: true,
reduce_vars: true,
unused: true,
}
input: {
function f() {
return a;
var a;
}
function g() {
return a;
var a = 1;
}
console.log(f(), g());
}
expect: {
function f() {
return a;
var a;
}
function g() {
return a;
var a = 1;
}
console.log(f(), g());
}
expect_stdout: true
}