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fix if_return on AST_Defun (#2010)

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Previous fiix for #1052 perturbs declaration order of functions which leads to incorrect behaviour under "use strict".
This commit is contained in:
Alex Lam S.L
2017-05-27 13:41:49 +08:00
committed by GitHub
parent 1ff8e9dd38
commit 95094b9c22
2 changed files with 69 additions and 23 deletions
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88
test/compress/issue-1052.js
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@@ -1,90 +1,91 @@
multiple_functions: {
options = { if_return: true, hoist_funs: false };
options = {
hoist_funs: false,
if_return: true,
}
input: {
( function() {
if ( !window ) {
return;
}
function f() {}
function g() {}
} )();
}
expect: {
( function() {
function f() {}
function g() {}
// NOTE: other compression steps will reduce this
// down to just `window`.
if ( window );
function f() {}
function g() {}
} )();
}
}
single_function: {
options = { if_return: true, hoist_funs: false };
options = {
hoist_funs: false,
if_return: true,
}
input: {
( function() {
if ( !window ) {
return;
}
function f() {}
} )();
}
expect: {
( function() {
function f() {}
if ( window );
function f() {}
} )();
}
}
deeply_nested: {
options = { if_return: true, hoist_funs: false };
options = {
hoist_funs: false,
if_return: true,
}
input: {
( function() {
if ( !window ) {
return;
}
function f() {}
function g() {}
if ( !document ) {
return;
}
function h() {}
} )();
}
expect: {
( function() {
function f() {}
function g() {}
function h() {}
// NOTE: other compression steps will reduce this
// down to just `window`.
if ( window )
if (document);
function f() {}
function g() {}
function h() {}
} )();
}
}
not_hoisted_when_already_nested: {
options = { if_return: true, hoist_funs: false };
options = {
hoist_funs: false,
if_return: true,
}
input: {
( function() {
if ( !window ) {
return;
}
if ( foo ) function f() {}
} )();
}
expect: {
@@ -94,3 +95,48 @@ not_hoisted_when_already_nested: {
} )();
}
}
defun_if_return: {
options = {
hoist_funs: false,
if_return: true,
}
input: {
function e() {
function f() {}
if (!window) return;
else function g() {}
function h() {}
}
}
expect: {
function e() {
function f() {}
if (window) function g() {}
function h() {}
}
}
}
defun_hoist_funs: {
options = {
hoist_funs: true,
if_return: true,
}
input: {
function e() {
function f() {}
if (!window) return;
else function g() {}
function h() {}
}
}
expect: {
function e() {
function f() {}
function g() {}
function h() {}
!window;
}
}
}