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fix corner cases in aliasing of global variables (#4039)

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fixes #4038
This commit is contained in:
Alex Lam S.L
2020-08-06 09:39:50 +01:00
committed by GitHub
parent 30ef20a208
commit 9b05494ebc
4 changed files with 115 additions and 16 deletions
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58
test/compress/collapse_vars.js
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@@ -8317,3 +8317,61 @@ issue_4012: {
}
expect_stdout: "PASS"
}
global_assign: {
options = {
collapse_vars: true,
}
input: {
this.A = "FAIL";
A = "PASS";
B = "FAIL";
console.log(A);
}
expect: {
this.A = "FAIL";
A = "PASS";
B = "FAIL";
console.log(A);
}
expect_stdout: "PASS"
}
global_read: {
options = {
collapse_vars: true,
}
input: {
var a = 0;
a = this.A;
A = 1;
a ? console.log("FAIL") : console.log("PASS");
}
expect: {
var a = 0;
a = this.A;
A = 1;
a ? console.log("FAIL") : console.log("PASS");
}
expect_stdout: "PASS"
}
issue_4038: {
options = {
collapse_vars: true,
}
input: {
var a = 0;
a = this;
a = a.A;
A = 1;
a ? console.log("FAIL") : console.log("PASS");
}
expect: {
var a = 0;
a = (a = this).A;
A = 1;
a ? console.log("FAIL") : console.log("PASS");
}
expect_stdout: "PASS"
}