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Keep unused function arguments by default

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Discarding unused function arguments affects function.length, which can lead
to some hard to debug issues.  This optimization is now done only in "unsafe
mode".

Fix #121
This commit is contained in:
Mihai Bazon
2015-03-20 10:28:51 +02:00
parent d36faffeca
commit ecfd881ac6
3 changed files with 8 additions and 7 deletions
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8
test/compress/drop-unused.js
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@@ -1,5 +1,5 @@
unused_funarg_1: {
options = { unused: true };
options = { unused: true, unsafe: true };
input: {
function f(a, b, c, d, e) {
return a + b;
@@ -13,7 +13,7 @@ unused_funarg_1: {
}
unused_funarg_2: {
options = { unused: true };
options = { unused: true, unsafe: true };
input: {
function f(a, b, c, d, e) {
return a + c;
@@ -165,7 +165,7 @@ used_var_in_catch: {
}
keep_fnames: {
options = { unused: true, keep_fnames: true };
options = { unused: true, keep_fnames: true, unsafe: true };
input: {
function foo() {
return function bar(baz) {};
@@ -176,4 +176,4 @@ keep_fnames: {
return function bar() {};
}
}
}
}