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enhance collapse_vars & reduce_vars (#5275)

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fixes #5276
This commit is contained in:
Alex Lam S.L
2022-01-07 21:26:49 +00:00
committed by GitHub
parent be8c75bae1
commit b0df5d7b55
2 changed files with 109 additions and 24 deletions
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77
test/compress/collapse_vars.js
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@@ -3032,6 +3032,54 @@ compound_assignment_6: {
expect_stdout: "42"
}
compound_assignment_7: {
options = {
assignments: true,
collapse_vars: true,
reduce_vars: true,
toplevel: true,
}
input: {
var a = "FA";
a = a + "I";
a = a + "L";
if (console)
a = "PASS";
console.log(a);
}
expect: {
var a = "FA";
a = a + "I" + "L";
if (console)
a = "PASS";
console.log(a);
}
expect_stdout: "PASS"
}
compound_assignment_8: {
options = {
assignments: true,
collapse_vars: true,
reduce_vars: true,
toplevel: true,
}
input: {
var a = 2;
a = 3 * a;
a = 7 * a;
console || (a = "FAIL");
console.log(a);
}
expect: {
var a = 2;
a = a * 3 * 7;
console || (a = "FAIL");
console.log(a);
}
expect_stdout: "42"
}
issue_2187_1: {
options = {
collapse_vars: true,
@@ -8285,9 +8333,9 @@ issue_3884_1: {
console.log(a, b);
}
expect: {
var a = 100, b = 1;
b <<= ++a;
console.log(a, b);
var a = 100;
++a;
console.log(a, 32);
}
expect_stdout: "101 32"
}
@@ -9715,9 +9763,30 @@ issue_5273: {
function f(c, d) {
return d;
}
b = (b + a) * a,
b = 1100,
f,
console.log(b);
}
expect_stdout: "1100"
}
issue_5276: {
options = {
collapse_vars: true,
pure_getters: "strict",
reduce_vars: true,
toplevel: true,
}
input: {
var a = A = "PASS";
a.p += null;
a.p -= 42;
console.log(a);
}
expect: {
var a = A = "PASS";
a.p = a.p + null - 42;
console.log(a);
}
expect_stdout: "PASS"
}