value: val
}).optimize(compressor);
case "number":
- return make_node(isNaN(val) ? AST_NaN : AST_Number, orig, {
- value: val
- }).optimize(compressor);
+ if (isNaN(val)) {
+ return make_node(AST_NaN, orig);
+ }
+
+ if ((1 / val) < 0) {
+ return make_node(AST_UnaryPrefix, orig, {
+ operator: "-",
+ expression: make_node(AST_Number, null, { value: -val })
+ });
+ }
+
+ return make_node(AST_Number, orig, { value: val }).optimize(compressor);
case "boolean":
return make_node(val ? AST_True : AST_False, orig).optimize(compressor);
case "undefined":
return typeof e;
case "void": return void ev(e, compressor);
case "~": return ~ev(e, compressor);
- case "-":
- e = -ev(e, compressor);
- if (e === -0) throw def;
- return e;
+ case "-": return -ev(e, compressor);
case "+": return +ev(e, compressor);
}
throw def;
negative_zero: {
options = { evaluate: true }
input: {
- assert.sameValue(-"", -0, '-""');
+ console.log(
+ -"",
+ - -"",
+ 1 / (-0),
+ 1 / (-"")
+ );
}
expect: {
- assert.sameValue(-"", -0, '-""');
+ console.log(
+ -0,
+ 0,
+ 1 / (-0),
+ 1 / (-0)
+ );
+ }
+}
+
+positive_zero: {
+ options = { evaluate: true }
+ input: {
+ console.log(
+ +"",
+ + -"",
+ 1 / (+0),
+ 1 / (+"")
+ );
+ }
+ expect: {
+ console.log(
+ 0,
+ -0,
+ 1 / (0),
+ 1 / (0)
+ );
}
}