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feat(std/node): add os Symbol.toPrimitive methods (#4073)

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Node's os module exports a number of methods that evaluate to themselves
when coerced to a primitive.

I.e., `"" + os.arch` and `os.arch()` evaluate to the same string, and
now Deno's shims do too.
This commit is contained in:
Ben Noordhuis 2020-02-23 20:40:44 +01:00 committed by GitHub
parent d9886a44d1
commit 45eb2f9b37
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11
std/node/os.ts
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@ -89,6 +89,17 @@ interface UserInfo {
homedir: string;
}
arch[Symbol.toPrimitive] = (): string => arch();
endianness[Symbol.toPrimitive] = (): string => endianness();
freemem[Symbol.toPrimitive] = (): number => freemem();
homedir[Symbol.toPrimitive] = (): string | null => homedir();
hostname[Symbol.toPrimitive] = (): string | null => hostname();
platform[Symbol.toPrimitive] = (): string => platform();
release[Symbol.toPrimitive] = (): string => release();
totalmem[Symbol.toPrimitive] = (): number => totalmem();
type[Symbol.toPrimitive] = (): string => type();
uptime[Symbol.toPrimitive] = (): number => uptime();
/** Returns the operating system CPU architecture for which the Deno binary was compiled */
export function arch(): string {
return Deno.build.arch;

11
std/node/os_test.ts
View file

@ -174,6 +174,17 @@ test({
}
});
test({
name: "Primitive coercion works as expected",
fn() {
assertEquals(`${os.arch}`, os.arch());
assertEquals(`${os.endianness}`, os.endianness());
assertEquals(`${os.homedir}`, os.homedir());
assertEquals(`${os.hostname}`, os.hostname());
assertEquals(`${os.platform}`, os.platform());
}
});
test({
name: "APIs not yet implemented",
fn() {