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Use TreeWalker for more accurate @const results and update tests

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This commit is contained in:
Samuel Reed
2016-01-20 10:52:48 -06:00
parent 918c17bd88
commit f97da4294a
2 changed files with 73 additions and 8 deletions
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49
test/compress/dead-code.js
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@@ -97,6 +97,7 @@ dead_code_const_declaration: {
evaluate : true
};
input: {
var unused;
const CONST_FOO = false;
if (CONST_FOO) {
console.log("unreachable");
@@ -105,6 +106,7 @@ dead_code_const_declaration: {
}
}
expect: {
var unused;
const CONST_FOO = !1;
var moo;
function bar() {}
@@ -120,7 +122,8 @@ dead_code_const_annotation: {
evaluate : true
};
input: {
/** @const*/ var CONST_FOO_ANN = false;
var unused;
/** @const */ var CONST_FOO_ANN = false;
if (CONST_FOO_ANN) {
console.log("unreachable");
var moo;
@@ -128,8 +131,52 @@ dead_code_const_annotation: {
}
}
expect: {
var unused;
var CONST_FOO_ANN = !1;
var moo;
function bar() {}
}
}
dead_code_const_annotation_complex_scope: {
options = {
dead_code : true,
loops : true,
booleans : true,
conditionals : true,
evaluate : true
};
input: {
var unused_var;
/** @const */ var test = 'test';
/** @const */ var CONST_FOO_ANN = false;
var unused_var_2;
if (CONST_FOO_ANN) {
console.log("unreachable");
var moo;
function bar() {}
}
if (test === 'test') {
var beef = 'good';
/** @const */ var meat = 'beef';
var pork = 'bad';
if (meat === 'pork') {
console.log('also unreachable');
} else if (pork === 'good') {
console.log('reached, not const');
}
}
}
expect: {
var unused_var;
var test = 'test';
var CONST_FOO_ANN = !1;
var unused_var_2;
var moo;
function bar() {}
var beef = 'good';
var meat = 'beef';
var pork = 'bad';
'good' === pork && console.log('reached, not const');
}
}