JoBoEVD/UglifyJS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

inline property access of object literal (#2209)

Browse Source 
- only if property value is side-effect-free
- guard by `unsafe`

fixes #2208
This commit is contained in:
Alex Lam S.L
2017-07-06 21:51:58 +08:00
committed by GitHub
parent 9306da3c58
commit 4b6ca5e742
4 changed files with 195 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

113
test/compress/properties.js
View File

@@ -657,3 +657,116 @@ accessor_this: {
expect_exact: 'var a=1;var b={get this(){return a},set this(c){a=c}};console.log(b.this,b.this=2,b.this);'
expect_stdout: "1 2 2"
}
issue_2208_1: {
options = {
inline: true,
side_effects: true,
unsafe: true,
}
input: {
console.log({
p: function() {
return 42;
}
}.p());
}
expect: {
console.log(42);
}
expect_stdout: "42"
}
issue_2208_2: {
options = {
inline: true,
side_effects: true,
unsafe: true,
}
input: {
console.log({
a: 42,
p: function() {
return this.a;
}
}.p());
}
expect: {
console.log({
a: 42,
p: function() {
return this.a;
}
}.p());
}
expect_stdout: "42"
}
issue_2208_3: {
options = {
inline: true,
side_effects: true,
unsafe: true,
}
input: {
a = 42;
console.log({
p: function() {
return function() {
return this.a;
}();
}
}.p());
}
expect: {
a = 42;
console.log(function() {
return this.a;
}());
}
expect_stdout: "42"
}
issue_2208_4: {
options = {
inline: true,
side_effects: true,
unsafe: true,
}
input: {
function foo() {}
console.log({
a: foo(),
p: function() {
return 42;
}
}.p());
}
expect: {
function foo() {}
console.log((foo(), function() {
return 42;
})());
}
expect_stdout: "42"
}
issue_2208_5: {
options = {
inline: true,
side_effects: true,
unsafe: true,
}
input: {
console.log({
p: "FAIL",
p: function() {
return 42;
}
}.p());
}
expect: {
console.log(42);
}
expect_stdout: "42"
}