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@ -1,17 +1,54 @@
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use gc::Gc; |
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use crate::js::function::NativeFunctionData; |
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use crate::js::object::INSTANCE_PROTOTYPE; |
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use crate::js::value::{from_value, to_value, ResultValue, Value, ValueData}; |
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use std::iter::FromIterator; |
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use chrono::Local; |
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use gc::Gc; |
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use std::fmt::Write; |
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use std::iter::FromIterator; |
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/// Print a javascript value to the standard output stream
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/// https://console.spec.whatwg.org/#logger
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pub fn log(_: Value, _: Value, args: Vec<Value>) -> ResultValue { |
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let args: Vec<String> = FromIterator::from_iter( |
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args.iter() |
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.map(|x| from_value::<String>(x.clone()).unwrap()), |
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); |
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let args: Vec<String> = FromIterator::from_iter(args.iter().map(|x| { |
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// Welcome to console.log! The output here is what the developer sees, so its best matching through value types and stringifying to the correct output
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// The input is a vector of Values, we generate a vector of strings then pass them to println!
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return match *x.clone() { |
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// We don't want to print private (compiler) or prototype properties
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ValueData::Object(ref v, _) => { |
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// Create empty formatted string to start writing to
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// TODO: once constructor is set on objects, we can do specific output for Strings, Numbers etc
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let mut s = String::new(); |
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write!(s, "{}", "{").unwrap(); |
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match v.borrow().iter().last() { |
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Some((last_key, _)) => { |
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for (key, val) in v.borrow().iter() { |
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// Don't print prototype properties
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if key == INSTANCE_PROTOTYPE { |
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continue; |
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} |
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write!(s, "{}: {}", key, val.value.clone()).unwrap(); |
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if key != last_key { |
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write!(s, "{}", ", ").unwrap(); |
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} |
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} |
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} |
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None => (), |
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} |
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write!(s, "{}", "}").unwrap(); |
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s |
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} |
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println!("{}: {}", Local::now().format("%X").to_string(), args.join(" ")); |
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_ => from_value::<String>(x.clone()).unwrap(), |
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}; |
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// from_value::<String>(x.clone()).unwrap()
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})); |
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println!( |
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"{}: {}", |
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Local::now().format("%X").to_string(), |
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args.join(" ") |
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); |
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Ok(Gc::new(ValueData::Undefined)) |
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} |
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/// Print a javascript value to the standard error stream
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@ -20,7 +57,11 @@ pub fn error(_: Value, _: Value, args: Vec<Value>) -> ResultValue {
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args.iter() |
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.map(|x| from_value::<String>(x.clone()).unwrap()), |
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); |
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println!("{}: {}", Local::now().format("%X").to_string(), args.join(" ")); |
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println!( |
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"{}: {}", |
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Local::now().format("%X").to_string(), |
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args.join(" ") |
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); |
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Ok(Gc::new(ValueData::Undefined)) |
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} |
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/// Create a new `console` object
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Jason Williams
6 years ago