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fix inline after single-use reduce_vars (#2623)

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This commit is contained in:
Alex Lam S.L
2017-12-19 22:19:33 +08:00
committed by GitHub
parent 01057cf76d
commit 2273655c17
2 changed files with 74 additions and 1 deletions
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4
lib/compress.js
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@@ -4004,7 +4004,9 @@ merge(Compressor.prototype, {
var catches = Object.create(null);
do {
scope = compressor.parent(level++);
if (scope instanceof AST_Catch) {
if (scope instanceof AST_SymbolRef) {
scope = scope.fixed_value();
} else if (scope instanceof AST_Catch) {
catches[scope.argname.name] = true;
}
} while (!(scope instanceof AST_Scope));

71
test/compress/functions.js
View File

@@ -1101,3 +1101,74 @@ issue_2616: {
}
expect_stdout: "PASS"
}
issue_2620_1: {
options = {
inline: true,
reduce_vars: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
var c = "FAIL";
(function() {
function f(a) {
var b = function g(a) {
a && a();
}();
if (a) {
var d = c = "PASS";
}
}
f(1);
})();
console.log(c);
}
expect: {
var c = "FAIL";
(function() {
(function(a) {
if (function(a) {
a && a();
}(), a) c = "PASS";
})(1);
})(),
console.log(c);
}
expect_stdout: "PASS"
}
issue_2620_2: {
options = {
conditionals: true,
evaluate: true,
inline: true,
passes: 2,
reduce_vars: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
var c = "FAIL";
(function() {
function f(a) {
var b = function g(a) {
a && a();
}();
if (a) {
var d = c = "PASS";
}
}
f(1);
})();
console.log(c);
}
expect: {
var c = "FAIL";
c = "PASS",
console.log(c);
}
expect_stdout: "PASS"
}