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Take operator || precendence into account for AST_If optimization.

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Fixes #979.
This commit is contained in:
kzc
2016-02-21 12:05:02 -05:00
parent bdd8e34f63
commit 5486b68850
2 changed files with 101 additions and 1 deletions
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89
test/compress/issue-979.js Normal file
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issue979_reported: {
options = {
sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true
}
input: {
function f1() {
if (a == 1 || b == 2) {
foo();
}
}
function f2() {
if (!(a == 1 || b == 2)) {
}
else {
foo();
}
}
}
expect: {
function f1() {
1!=a&&2!=b||foo();
}
function f2() {
1!=a&&2!=b||foo();
}
}
}
issue979_test_negated_is_best: {
options = {
sequences:true, properties:true, dead_code:true, conditionals:true,
comparisons:true, evaluate:true, booleans:true, loops:true, unused:true, hoist_funs:true,
keep_fargs:true, if_return:true, join_vars:true, cascade:true, side_effects:true
}
input: {
function f3() {
if (a == 1 | b == 2) {
foo();
}
}
function f4() {
if (!(a == 1 | b == 2)) {
}
else {
foo();
}
}
function f5() {
if (a == 1 && b == 2) {
foo();
}
}
function f6() {
if (!(a == 1 && b == 2)) {
}
else {
foo();
}
}
function f7() {
if (a == 1 || b == 2) {
foo();
}
else {
return bar();
}
}
}
expect: {
function f3() {
1==a|2==b&&foo();
}
function f4() {
1==a|2==b&&foo();
}
function f5() {
1==a&&2==b&&foo();
}
function f6() {
1!=a||2!=b||foo();
}
function f7() {
return 1!=a&&2!=b?bar():void foo();
}
}
}