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improve unused on built-in functions (#2817)

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This commit is contained in:
Alex Lam S.L
2018-01-19 20:41:57 +08:00
committed by GitHub
parent e21bab7ce6
commit 3e7873217c
4 changed files with 205 additions and 87 deletions
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23
test/compress/collapse_vars.js
View File

@@ -4089,3 +4089,26 @@ cascade_forin: {
"2",
]
}
unsafe_builtin: {
options = {
collapse_vars: true,
pure_getters: "strict",
unsafe: true,
unused: true,
}
input: {
function f(a) {
var b = Math.abs(a);
return Math.pow(b, 2);
}
console.log(f(-1), f(2));
}
expect: {
function f(a) {
return Math.pow(Math.abs(a), 2);
}
console.log(f(-1), f(2));
}
expect_stdout: "1 4"
}

17
test/compress/dead-code.js
View File

@@ -862,3 +862,20 @@ issue_2749: {
}
expect_stdout: "PASS"
}
unsafe_builtin: {
options = {
side_effects: true,
unsafe: true,
}
input: {
(!w).constructor(x);
Math.abs(y);
[ 1, 2, z ].valueOf();
}
expect: {
w, x;
y;
z;
}
}

36
test/compress/evaluate.js
View File

@@ -1194,6 +1194,9 @@ issue_2231_1: {
console.log(Object.keys(void 0));
}
expect_stdout: true
expect_warnings: [
"WARN: Error evaluating Object.keys(void 0) [test/compress/evaluate.js:1191,20]",
]
}
issue_2231_2: {
@@ -1208,6 +1211,23 @@ issue_2231_2: {
console.log(Object.getOwnPropertyNames(null));
}
expect_stdout: true
expect_warnings: [
"WARN: Error evaluating Object.getOwnPropertyNames(null) [test/compress/evaluate.js:1208,20]",
]
}
issue_2231_3: {
options = {
evaluate: true,
unsafe: true,
}
input: {
console.log(Object.keys({ foo: "bar" })[0]);
}
expect: {
console.log("foo");
}
expect_stdout: "foo"
}
self_comparison_1: {
@@ -1330,13 +1350,13 @@ issue_2535_3: {
}
expect_stdout: true
expect_warnings: [
"WARN: Dropping side-effect-free && [test/compress/evaluate.js:1316,20]",
"WARN: Dropping side-effect-free && [test/compress/evaluate.js:1317,20]",
"WARN: Dropping side-effect-free && [test/compress/evaluate.js:1318,20]",
"WARN: Condition left of && always false [test/compress/evaluate.js:1318,20]",
"WARN: Dropping side-effect-free || [test/compress/evaluate.js:1319,20]",
"WARN: Dropping side-effect-free || [test/compress/evaluate.js:1320,20]",
"WARN: Dropping side-effect-free || [test/compress/evaluate.js:1321,20]",
"WARN: Condition left of || always true [test/compress/evaluate.js:1321,20]",
"WARN: Dropping side-effect-free && [test/compress/evaluate.js:1336,20]",
"WARN: Dropping side-effect-free && [test/compress/evaluate.js:1337,20]",
"WARN: Dropping side-effect-free && [test/compress/evaluate.js:1338,20]",
"WARN: Condition left of && always false [test/compress/evaluate.js:1338,20]",
"WARN: Dropping side-effect-free || [test/compress/evaluate.js:1339,20]",
"WARN: Dropping side-effect-free || [test/compress/evaluate.js:1340,20]",
"WARN: Dropping side-effect-free || [test/compress/evaluate.js:1341,20]",
"WARN: Condition left of || always true [test/compress/evaluate.js:1341,20]",
]
}