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improve evaluate on typeof (#2550)

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- gated through `typeofs`
This commit is contained in:
Alex Lam S.L
2017-12-02 02:18:33 +08:00
committed by GitHub
parent 9a6b11f8e6
commit 8da3754e51
2 changed files with 86 additions and 4 deletions
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80
test/compress/typeof.js
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@@ -1,6 +1,7 @@
typeof_evaluation: {
options = {
evaluate: true
evaluate: true,
typeofs: true,
};
input: {
a = typeof 1;
@@ -60,3 +61,80 @@ issue_1668: {
if (1);
}
}
typeof_defun_1: {
options = {
evaluate: true,
inline: true,
passes: 2,
reduce_vars: true,
side_effects: true,
toplevel: true,
typeofs: true,
unused: true,
}
input: {
function f() {
console.log("YES");
}
function g() {
h = 42;
console.log("NOPE");
}
function h() {
console.log("YUP");
}
g = 42;
"function" == typeof f && f();
"function" == typeof g && g();
"function" == typeof h && h();
}
expect: {
function g() {
h = 42;
console.log("NOPE");
}
function h() {
console.log("YUP");
}
g = 42;
console.log("YES");
"function" == typeof g && g();
h();
}
expect_stdout: [
"YES",
"YUP",
]
}
typeof_defun_2: {
options = {
evaluate: true,
reduce_vars: true,
toplevel: true,
typeofs: true,
}
input: {
var f = function() {
console.log(x);
};
var x = 0;
x++ < 2 && typeof f == "function" && f();
x++ < 2 && typeof f == "function" && f();
x++ < 2 && typeof f == "function" && f();
}
expect: {
var f = function() {
console.log(x);
};
var x = 0;
x++ < 2 && f();
x++ < 2 && f();
x++ < 2 && f();
}
expect_stdout: [
"1",
"2",
]
}