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enhance switches (#5005)

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closes #5004
This commit is contained in:
Alex Lam S.L
2021-06-15 03:32:39 +01:00
committed by GitHub
parent 6fc7a2ab6a
commit 498ac83541
3 changed files with 321 additions and 89 deletions
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68
test/compress/reduce_vars.js
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@@ -2071,72 +2071,6 @@ issue_1670_2: {
}
issue_1670_3: {
options = {
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
switches: true,
typeofs: true,
unused: true,
}
input: {
(function f() {
switch (1) {
case 0:
var a = true;
break;
case 1:
if (typeof a === "undefined") console.log("PASS");
else console.log("FAIL");
}
})();
}
expect: {
(function() {
var a;
void 0 === a ? console.log("PASS") : console.log("FAIL");
})();
}
expect_stdout: "PASS"
}
issue_1670_4: {
options = {
conditionals: true,
dead_code: true,
evaluate: true,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
side_effects: true,
switches: true,
unused: true,
}
input: {
(function f() {
switch (1) {
case 0:
var a = true;
break;
case 1:
if (typeof a === "undefined") console.log("PASS");
else console.log("FAIL");
}
})();
}
expect: {
(function() {
console.log("PASS");
})();
}
expect_stdout: "PASS"
}
issue_1670_5: {
options = {
conditionals: true,
dead_code: true,
@@ -2168,7 +2102,7 @@ issue_1670_5: {
expect_stdout: "1"
}
issue_1670_6: {
issue_1670_4: {
options = {
conditionals: true,
dead_code: true,