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[ES6] Get compress and global_defs working for AST_Class

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This commit is contained in:
kzc
2016-07-17 12:59:38 -04:00
committed by Richard van Velzen
parent 0af42d1831
commit 842ac27efb
3 changed files with 88 additions and 0 deletions
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6
lib/compress.js
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@@ -2988,6 +2988,12 @@ merge(Compressor.prototype, {
return self;
});
OPT(AST_Class, function(self, compressor){
// HACK to avoid compress failure.
// AST_Class is not really an AST_Scope/AST_Block as it lacks a body.
return self;
});
OPT(AST_Yield, function(self, compressor){
if (!self.is_star && self.expression instanceof AST_Undefined) {
self.expression = null;

6
lib/transform.js
View File

@@ -227,6 +227,12 @@ TreeTransformer.prototype = new TreeWalker;
self.value = self.value.transform(tw);
});
_(AST_Class, function(self, tw){
if (self.name) self.name = self.name.transform(tw);
if (self.extends) self.extends = self.extends.transform(tw);
self.properties = do_list(self.properties, tw);
});
_(AST_Expansion, function(self, tw){
self.expression = self.expression.transform(tw);
});

76
test/compress/issue-1212.js Normal file
View File

@@ -0,0 +1,76 @@
issue_1212_debug_false: {
options = {
global_defs : { DEBUG: false },
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: {
class foo {
bar() {
if (DEBUG)
console.log("DEV");
else
console.log("PROD");
}
}
new foo().bar();
}
expect: {
class foo{
bar() { console.log("PROD") }
}
(new foo).bar();
}
}
issue_1212_debug_true: {
options = {
global_defs : { DEBUG: true },
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: {
class foo {
bar() {
if (DEBUG)
console.log("DEV");
else
console.log("PROD");
}
}
new foo().bar();
}
expect: {
class foo{
bar() { console.log("DEV") }
}
(new foo).bar();
}
}