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enhance hoist_props & reduce_vars (#5183)

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closes #5182
This commit is contained in:
Alex Lam S.L
2021-11-22 16:31:10 +00:00
committed by GitHub
parent 1e3ca4c6f7
commit 3ee1b0d00d
3 changed files with 65 additions and 22 deletions
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61
test/compress/hoist_props.js
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@@ -217,7 +217,8 @@ name_collision_1: {
var obj_foo = 1;
var obj_bar = 2;
function f() {
var obj_foo$0 = 3,
var obj,
obj_foo$0 = 3,
obj_bar = 4,
obj_b_r = 5,
obj_b_r$0 = 6,
@@ -249,7 +250,8 @@ name_collision_2: {
console.log(o.p === o.p, o["+"](4), o["-"](5), o__$0, o__$1);
}
expect: {
var o_p = 1,
var o,
o_p = 1,
o__ = function(x) {
return x;
},
@@ -283,7 +285,8 @@ name_collision_3: {
console.log(o.p === o.p, o["+"](4), o["-"](5));
}
expect: {
var o_p = 1,
var o,
o_p = 1,
o__ = function(x) {
return x;
},
@@ -315,7 +318,7 @@ name_collision_4: {
}
expect: {
console.log(function() {
var o_p$0 = 0, o_q = "PASS";
var o, o_p$0 = 0, o_q = "PASS";
return function(o_p) {
if (!o_p$0) return o_p;
}(o_q);
@@ -768,7 +771,7 @@ issue_3046: {
expect: {
console.log(function(a) {
do {
var b_c = a++;
var b, b_c = a++;
} while (b_c && a);
return a;
}(0));
@@ -931,7 +934,7 @@ issue_3411: {
expect: {
var c = 1;
!function f() {
var o_p = --c && f();
var o, o_p = --c && f();
+{} || console.log("PASS");
}();
}
@@ -1042,9 +1045,7 @@ issue_3945_1: {
expect: {
function f() {
o.p;
var o = {
q: 0,
};
var o, o_q = 0;
}
}
}
@@ -1063,9 +1064,7 @@ issue_3945_2: {
}
expect: {
console.log(typeof o);
var o = {
p: 0,
};
var o, o_p = 0;
}
expect_stdout: "undefined"
}
@@ -1134,10 +1133,46 @@ issue_4985: {
}());
}
expect: {
var a_p = 42;
var a, a_p = 42;
console.log(function() {
({});
}());
}
expect_stdout: "undefined"
}
issue_5182: {
options = {
hoist_props: true,
merge_vars: true,
passes: 2,
reduce_vars: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
var o = console;
log = o.log;
o = {
p: function(a) {
console.log(a ? "PASS" : "FAIL");
return a;
},
};
log(o.p(42));
}
expect: {
var o_p = console;
log = o_p.log;
o_p = function(a) {
console.log(a ? "PASS" : "FAIL");
return a;
};
log(o_p(42));
}
expect_stdout: [
"PASS",
"42",
]
}