if (key instanceof AST_Node) return null;
var value;
if (obj instanceof AST_Array) {
- value = obj.elements[key];
+ var elements = obj.elements;
+ if (key == "length") return make_node_from_constant(elements.length, obj);
+ if (typeof key == "number" && key in elements) value = elements[key];
} else if (obj instanceof AST_Object) {
var props = obj.properties;
for (var i = props.length; --i >= 0;) {
evaluate: true,
reduce_vars: true,
unsafe: true,
+ unused: true,
};
input: {
function f0() {
function f1() {
var a = [1, 2, 3];
var b = 0;
- for (var i = 0, len = a.length; i < len; i++)
+ for (var i = 0; i < 3; i++)
b += a[i];
return b;
}
}
expect_stdout: "6 6 4"
}
+
+index: {
+ options = {
+ evaluate: true,
+ reduce_vars: true,
+ toplevel: true,
+ unsafe: true,
+ unused: true,
+ }
+ input: {
+ var a = [ 1, 2 ];
+ console.log(a[0], a[1]);
+ }
+ expect: {
+ console.log(1, 2);
+ }
+ expect_stdout: "1 2"
+}
+
+length: {
+ options = {
+ evaluate: true,
+ reduce_vars: true,
+ toplevel: true,
+ unsafe: true,
+ unused: true,
+ }
+ input: {
+ var a = [ 1, 2 ];
+ console.log(a.length);
+ }
+ expect: {
+ console.log(2);
+ }
+ expect_stdout: "2"
+}
+
+index_length: {
+ options = {
+ evaluate: true,
+ reduce_vars: true,
+ toplevel: true,
+ unsafe: true,
+ unused: true,
+ }
+ input: {
+ var a = [ 1, 2 ];
+ console.log(a[0], a.length);
+ }
+ expect: {
+ console.log(1, 2);
+ }
+ expect_stdout: "1 2"
+}