mirror of https://github.com/sgoudham/neovide.git
Keith Simmons
5 years ago
committed by
GitHub
commit
c3fc923b46
@ -0,0 +1,182 @@
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use super::Value;
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use log::error;
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// Trait to allow for conversion from rmpv::Value to any other data type.
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// Note: Feel free to implement this trait for custom types in each subsystem.
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// The reverse conversion (MyType->Value) can be performed by implementing `From<MyType> for Value`
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pub trait FromValue {
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fn from_value(&mut self, value: Value);
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}
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// FromValue implementations for most typical types
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impl FromValue for f32 {
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fn from_value(&mut self, value: Value) {
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if value.is_f64() {
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*self = value.as_f64().unwrap() as f32;
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} else if value.is_i64() {
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*self = value.as_i64().unwrap() as f32;
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} else if value.is_u64() {
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*self = value.as_u64().unwrap() as f32;
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} else {
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error!("Setting expected an f32, but received {:?}", value);
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}
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}
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}
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impl FromValue for u64 {
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fn from_value(&mut self, value: Value) {
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if value.is_u64() {
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*self = value.as_u64().unwrap();
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} else {
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error!("Setting expected a u64, but received {:?}", value);
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}
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}
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}
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impl FromValue for u32 {
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fn from_value(&mut self, value: Value) {
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if value.is_u64() {
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*self = value.as_u64().unwrap() as u32;
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} else {
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error!("Setting expected a u32, but received {:?}", value);
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}
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}
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}
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impl FromValue for i32 {
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fn from_value(&mut self, value: Value) {
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if value.is_i64() {
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*self = value.as_i64().unwrap() as i32;
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} else {
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error!("Setting expected an i32, but received {:?}", value);
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}
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}
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}
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impl FromValue for String {
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fn from_value(&mut self, value: Value) {
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if value.is_str() {
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*self = String::from(value.as_str().unwrap());
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} else {
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error!("Setting expected a string, but received {:?}", value);
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}
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}
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}
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impl FromValue for bool {
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fn from_value(&mut self, value: Value) {
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if value.is_bool() {
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*self = value.as_bool().unwrap();
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} else if value.is_u64() {
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*self = value.as_u64().unwrap() != 0;
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} else {
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error!("Setting expected a string, but received {:?}", value);
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_from_value_f32() {
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let mut v0: f32 = 0.0;
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let v1 = Value::from(1.0);
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let v2 = Value::from(-1);
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let v3 = Value::from(std::u64::MAX);
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let v1p = 1.0;
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let v2p = -1.0;
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let v3p = std::u64::MAX as f32;
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v0.from_value(v1);
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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v0.from_value(v2);
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assert_eq!(v0, v2p, "v0 should equal {} but is actually {}", v2p, v0);
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v0.from_value(v3);
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assert_eq!(v0, v3p, "v0 should equal {} but is actually {}", v3p, v0);
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// This is a noop and prints an error
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v0.from_value(Value::from("asd"));
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assert_eq!(v0, v3p, "v0 should equal {} but is actually {}", v3p, v0);
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}
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#[test]
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fn test_from_value_u64() {
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let mut v0: u64 = 0;
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let v1 = Value::from(std::u64::MAX);
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let v1p = std::u64::MAX;
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v0.from_value(v1);
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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// This is a noop and prints an error
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v0.from_value(Value::from(-1));
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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}
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#[test]
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fn test_from_value_u32() {
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let mut v0: u32 = 0;
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let v1 = Value::from(std::u64::MAX);
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let v1p = std::u64::MAX as u32;
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v0.from_value(v1);
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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// This is a noop and prints an error
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v0.from_value(Value::from(-1));
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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}
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#[test]
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fn test_from_value_i32() {
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let mut v0: i32 = 0;
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let v1 = Value::from(std::i64::MAX);
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let v1p = std::i64::MAX as i32;
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v0.from_value(v1);
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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// This is a noop and prints an error
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v0.from_value(Value::from(-1));
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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}
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#[test]
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fn test_from_value_string() {
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let mut v0: String = "foo".to_string();
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let v1 = Value::from("bar");
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let v1p = "bar";
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v0.from_value(v1);
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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// This is a noop and prints an error
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v0.from_value(Value::from(-1));
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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}
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#[test]
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fn test_from_value_bool() {
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let mut v0: bool = false;
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let v1 = Value::from(true);
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let v1p = true;
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let v2 = Value::from(0);
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let v2p = false;
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let v3 = Value::from(1);
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let v3p = true;
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v0.from_value(v1);
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assert_eq!(v0, v1p, "v0 should equal {} but is actually {}", v1p, v0);
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v0.from_value(v2);
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assert_eq!(v0, v2p, "v0 should equal {} but is actually {}", v2p, v0);
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v0.from_value(v3);
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assert_eq!(v0, v3p, "v0 should equal {} but is actually {}", v3p, v0);
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// This is a noop and prints an error
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v0.from_value(Value::from(-1));
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assert_eq!(v0, v3p, "v0 should equal {} but is actually {}", v3p, v0);
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}
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}
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