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fix corner case in evaluate & ie8 (#3483)

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fixes #3482
This commit is contained in:
Alex Lam S.L
2019-10-16 01:09:16 +08:00
committed by GitHub
parent 8af2f5fbcf
commit 91cae51d8f
2 changed files with 143 additions and 20 deletions
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1
lib/scope.js
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@@ -216,6 +216,7 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options) {
node.reference(options);
});
if (old_def.lambda) new_def.lambda = true;
if (new_def.undeclared) self.variables.set(name, new_def);
}
});

154
test/compress/ie8.js
View File

@@ -127,26 +127,34 @@ do_screw_try_catch_undefined: {
input: {
function a(b) {
try {
throw 'Stuff';
throw "Stuff";
} catch (undefined) {
console.log('caught: ' + undefined);
console.log("caught: " + undefined);
}
console.log('undefined is ' + undefined);
console.log("undefined is " + undefined);
return b === undefined;
};
}
console.log(a(42), a(void 0));
}
expect: {
function a(o) {
try {
throw "Stuff"
throw "Stuff";
} catch (o) {
console.log("caught: "+o)
console.log("caught: " + o);
}
console.log("undefined is " + void 0);
return void 0===o
return void 0 === o;
}
console.log(a(42), a(void 0));
}
expect_stdout: true
expect_stdout: [
"caught: Stuff",
"undefined is undefined",
"caught: Stuff",
"undefined is undefined",
"false true",
]
}
dont_screw_try_catch_undefined: {
@@ -162,26 +170,35 @@ dont_screw_try_catch_undefined: {
input: {
function a(b) {
try {
throw 'Stuff';
throw "Stuff";
} catch (undefined) {
console.log('caught: ' + undefined);
console.log("caught: " + undefined);
}
console.log('undefined is ' + undefined);
// IE8: undefined is Stuff
console.log("undefined is " + undefined);
return b === undefined;
};
}
console.log(a(42), a(void 0));
}
expect: {
function a(n) {
try {
throw "Stuff"
throw "Stuff";
} catch (undefined) {
console.log("caught: " + undefined)
console.log("caught: " + undefined);
}
console.log("undefined is " + undefined);
return n === undefined
return n === undefined;
}
console.log(a(42), a(void 0));
}
expect_stdout: true
expect_stdout: [
"caught: Stuff",
"undefined is undefined",
"caught: Stuff",
"undefined is undefined",
"false true",
]
}
reduce_vars: {
@@ -1561,3 +1578,108 @@ issue_3478_2_ie8_toplevel: {
}
expect_stdout: "PASS"
}
issue_3482_1: {
options = {
evaluate: true,
ie8: false,
}
input: {
try {
throw 42;
} catch (NaN) {
var a = +"a";
}
console.log(a, NaN, 0 / 0);
}
expect: {
try {
throw 42;
} catch (NaN) {
var a = 0 / 0;
}
console.log(a, NaN, NaN);
}
expect_stdout: "NaN NaN NaN"
}
issue_3482_1_ie8: {
options = {
evaluate: true,
ie8: true,
}
input: {
try {
throw 42;
} catch (NaN) {
var a = +"a";
}
// IE8: NaN 42 NaN
console.log(a, NaN, 0 / 0);
}
expect: {
try {
throw 42;
} catch (NaN) {
var a = 0 / 0;
}
console.log(a, NaN, 0 / 0);
}
expect_stdout: "NaN NaN NaN"
}
issue_3482_2: {
options = {
evaluate: true,
ie8: false,
}
input: {
(function() {
try {
throw 42;
} catch (NaN) {
a = +"a";
}
})();
console.log(a, NaN, 0 / 0);
}
expect: {
(function() {
try {
throw 42;
} catch (NaN) {
a = 0 / 0;
}
})();
console.log(a, NaN, NaN);
}
expect_stdout: "NaN NaN NaN"
}
issue_3482_2_ie8: {
options = {
evaluate: true,
ie8: true,
}
input: {
(function() {
try {
throw 42;
} catch (NaN) {
a = +"a";
}
})();
console.log(a, NaN, 0 / 0);
}
expect: {
(function() {
try {
throw 42;
} catch (NaN) {
a = 0 / 0;
}
})();
console.log(a, NaN, 0 / 0);
}
expect_stdout: "NaN NaN NaN"
}