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fix corner cases in collapse_vars (#5553)

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fixes #5552
This commit is contained in:
Alex Lam S.L
2022-07-09 13:50:54 +01:00
committed by GitHub
parent 0b808f6428
commit 38bd4f65d0
2 changed files with 132 additions and 29 deletions
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93
test/compress/rests.js
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@@ -1531,3 +1531,96 @@ issue_5533_2_drop_fargs: {
expect_stdout: "PASS"
node_version: ">=6"
}
issue_5552_1: {
options = {
collapse_vars: true,
reduce_vars: true,
toplevel: true,
}
input: {
var log = console.log;
var a = f, b = log();
function f(...[ c = a = "PASS" ]) {}
f((a = "FAIL", b));
log(a);
}
expect: {
var log = console.log;
var a = f, b = log();
function f(...[ c = a = "PASS" ]) {}
f((a = "FAIL", b));
log(a);
}
expect_stdout: [
"",
"PASS",
]
node_version: ">=6"
}
issue_5552_2: {
options = {
collapse_vars: true,
reduce_vars: true,
toplevel: true,
}
input: {
var log = console.log;
var a = f;
function f(...{ [a = "PASS"]: b }) {}
f((a = "FAIL", 42));
log(a);
}
expect: {
var log = console.log;
var a = f;
function f(...{ [a = "PASS"]: b }) {}
f((a = "FAIL", 42));
log(a);
}
expect_stdout: "PASS"
node_version: ">=6"
}
issue_5552_3: {
options = {
collapse_vars: true,
unused: true,
}
input: {
var a = [ "FAIL", "PASS" ];
console.log(function(b, ...[ c = a.pop() ]) {
return b;
}(a.pop()));
}
expect: {
var a = [ "FAIL", "PASS" ];
console.log(function(b, ...[ c = a.pop() ]) {
return b;
}(a.pop()));
}
expect_stdout: "PASS"
node_version: ">=6"
}
issue_5552_4: {
options = {
collapse_vars: true,
unused: true,
}
input: {
var a = [ "FAIL", "PASS" ];
console.log(function(b, ...{ [a.pop()]: c }) {
return b;
}(a.pop()));
}
expect: {
var a = [ "FAIL", "PASS" ];
console.log(function(b, ...{ [a.pop()]: c }) {
return b;
}(a.pop()));
}
expect_stdout: "PASS"
node_version: ">=6"
}