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fix corner case in reduce_funcs (#3592)

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This commit is contained in:
Alex Lam S.L
2019-11-17 11:19:42 +08:00
committed by GitHub
parent 10c1a78772
commit 8504a4ea0e
2 changed files with 120 additions and 32 deletions
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2
lib/compress.js
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@@ -5369,6 +5369,7 @@ merge(Compressor.prototype, {
&& !fn.contains_this()
&& can_inject_symbols()) {
fn._squeezed = true;
if (exp !== fn) fn.parent_scope = exp.scope;
return make_sequence(self, flatten_fn()).optimize(compressor);
}
if (compressor.option("side_effects")
@@ -6382,6 +6383,7 @@ merge(Compressor.prototype, {
} while (scope = scope.parent_scope);
}
}
if (single_use) fixed.parent_scope = self.scope;
}
if (single_use && fixed) {
def.single_use = false;

128
test/compress/functions.js
View File

@@ -2416,7 +2416,7 @@ issue_3297_2: {
doProcessOne({
param1: param1,
param2: param2,
}, function () {
}, function() {
processBulk(bulk);
});
};
@@ -2497,7 +2497,7 @@ issue_3297_3: {
doProcessOne({
param1: param1,
param2: param2,
}, function () {
}, function() {
processBulk(bulk);
});
};
@@ -2514,18 +2514,21 @@ issue_3297_3: {
}).processBulk([1, 2, 3]);
}
expect: {
function function1(u) {
function function1(c) {
return {
processBulk: function n(r) {
var o, t = u();
r && 0 < r.length && (o = {
param1: r.shift(),
processBulk: function n(o) {
var r, t, u = c();
o && 0 < o.length && (r = {
param1: o.shift(),
param2: {
subparam1: t
subparam1: u
}
},
console.log(JSON.stringify(o)),
n(r));
t = function() {
n(o);
},
console.log(JSON.stringify(r)),
t());
}
};
}
@@ -3097,8 +3100,7 @@ issue_3400_1: {
});
}
expect: {
void console.log(function() {
function g() {
void console.log(function g() {
function h(u) {
var o = {
p: u
@@ -3111,9 +3113,7 @@ issue_3400_1: {
});
}
return e();
}
return g;
}()()[0].p);
}()[0].p);
}
expect_stdout: [
"undefined",
@@ -3154,12 +3154,10 @@ issue_3400_2: {
expect: {
void console.log(function g() {
return [ 42 ].map(function(v) {
return function(u) {
var o = {
p: u
};
return console.log(o[g]), o;
}(v);
return o = {
p: v
}, console.log(o[g]), o;
var o;
});
}()[0].p);
}
@@ -3401,3 +3399,91 @@ issue_3562: {
}
expect_stdout: "PASS"
}
hoisted_inline: {
options = {
inline: true,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
function f() {
console.log("PASS");
}
function g() {
for (var console in [ 0 ])
h();
}
function h() {
f();
}
g();
}
expect: {
function f() {
console.log("PASS");
}
(function() {
for (var console in [ 0 ])
void f();
})();
}
expect_stdout: "PASS"
}
hoisted_single_use: {
options = {
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
function f(a) {
for (var r in a) g(r);
}
function g(a) {
console.log(a);
}
function h(a) {
var g = a.bar;
g();
g();
i(a);
}
function i(b) {
f(b);
}
h({
bar: function() {
console.log("foo");
}
});
}
expect: {
function f(a) {
for (var r in a) g(r);
}
function g(a) {
console.log(a);
}
(function(a) {
var g = a.bar;
g();
g();
(function(b) {
f(b);
})(a);
})({
bar: function() {
console.log("foo");
}
});
}
expect_stdout: [
"foo",
"foo",
"bar",
]
}