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support BigInt literals (#4583)

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This commit is contained in:
Alex Lam S.L
2021-01-24 01:51:18 +00:00
committed by GitHub
parent ef9f7ca3e7
commit 8bfd891c09
10 changed files with 251 additions and 176 deletions
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32
lib/output.js
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@@ -689,32 +689,32 @@ function OutputStream(options) {
PARENS(AST_Sequence, function(output) {
var p = output.parent();
// [ 1, (2, 3), 4 ] ==> [ 1, 3, 4 ]
// [ 1, (2, 3), 4 ] ---> [ 1, 3, 4 ]
return p instanceof AST_Array
// () => (foo, bar)
// () ---> (foo, bar)
|| is_arrow(p) && p.value === this
// await (foo, bar)
|| p instanceof AST_Await
// 1 + (2, 3) + 4 ==> 8
// 1 + (2, 3) + 4 ---> 8
|| p instanceof AST_Binary
// new (foo, bar) or foo(1, (2, 3), 4)
|| p instanceof AST_Call
// (false, true) ? (a = 10, b = 20) : (c = 30)
// ==> 20 (side effect, set a := 10 and b := 20)
// ---> 20 (side effect, set a := 10 and b := 20)
|| p instanceof AST_Conditional
// [ a = (1, 2) ] = [] ==> a == 2
// [ a = (1, 2) ] = [] ---> a == 2
|| p instanceof AST_DefaultValue
// { [(1, 2)]: 3 }[2] ==> 3
// { foo: (1, 2) }.foo ==> 2
// { [(1, 2)]: 3 }[2] ---> 3
// { foo: (1, 2) }.foo ---> 2
|| p instanceof AST_DestructuredKeyVal
|| p instanceof AST_ObjectProperty
// (1, {foo:2}).foo or (1, {foo:2})["foo"] ==> 2
// (1, {foo:2}).foo or (1, {foo:2})["foo"] ---> 2
|| p instanceof AST_PropAccess && p.expression === this
// ...(foo, bar, baz)
|| p instanceof AST_Spread
// !(foo, bar, baz)
|| p instanceof AST_Unary
// var a = (1, 2), b = a + a; ==> b == 4
// var a = (1, 2), b = a + a; ---> b == 4
|| p instanceof AST_VarDef;
});
@@ -777,14 +777,10 @@ function OutputStream(options) {
});
PARENS(AST_Number, function(output) {
if (!output.option("galio")) return false;
// https://github.com/mishoo/UglifyJS/pull/1009
var p = output.parent();
if (p instanceof AST_PropAccess && p.expression === this) {
var value = this.value;
// https://github.com/mishoo/UglifyJS/issues/115
return value < 0
// https://github.com/mishoo/UglifyJS/pull/1009
|| output.option("galio") && /^0/.test(make_num(value));
}
return p instanceof AST_PropAccess && p.expression === this && /^0/.test(make_num(this.value));
});
function needs_parens_assign_cond(self, output) {
@@ -807,8 +803,8 @@ function OutputStream(options) {
});
PARENS(AST_Assign, function(output) {
if (needs_parens_assign_cond(this, output)) return true;
// v8 parser bug => workaround
// f([1], [a] = []) => f([1], ([a] = []))
// v8 parser bug ---> workaround
// f([1], [a] = []) ---> f([1], ([a] = []))
if (output.option("v8")) return this.left instanceof AST_Destructured;
// ({ p: a } = o);
if (this.left instanceof AST_DestructuredObject) return needs_parens_obj(output);