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svalue.rs
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svalue.rs
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#[allow(dead_code)]
#[derive(Debug,Clone)]
pub enum SValue {
Int(isize),
Str(String, isize),
Bool(bool),
Array(Vec<SValue>),
IntArray(Vec<isize>),
StrArray(Vec<String>),
UserFunc(usize), // link to song.functions[no]
None,
}
impl SValue {
pub fn new() -> Self {
Self::None
}
pub fn from_int_array_to_svalue_array(a: Vec<isize>) -> Self {
let mut sa: Vec<SValue> = vec![];
for v in a.iter() {
sa.push(SValue::from_i(*v));
}
SValue::Array(sa)
}
pub fn from_int_array(a: Vec<isize>) -> Self {
SValue::IntArray(a)
}
pub fn from_str_array(a: Vec<String>) -> Self {
SValue::StrArray(a)
}
pub fn from_i(v: isize) -> Self {
Self::Int(v)
}
pub fn from_s(s: String) -> Self {
Self::Str(s, 0)
}
pub fn from_str(s: &str) -> Self {
Self::Str(String::from(s), 0)
}
pub fn from_str_and_tag(s: &str, tag: isize) -> Self {
Self::Str(String::from(s), tag)
}
pub fn from_b(b: bool) -> Self {
Self::Bool(b)
}
pub fn to_b(&self) -> bool {
let v = self.to_i();
return v != 0;
}
pub fn to_i(&self) -> isize {
match self {
Self::Int(i) => *i,
Self::Str(s, _) => s.parse().unwrap_or(0),
Self::Bool(b) => if *b { 1 } else { 0 },
Self::None => 0,
_ => 0,
}
}
pub fn to_s(&self) -> String {
match self {
Self::Int(i) => i.to_string(),
Self::Str(s, _) => s.clone(),
Self::Bool(b) => if *b { "TRUE".to_string() } else { "FALSE".to_string() },
Self::Array(a) => {
let s = a.iter().map(|v| v.to_s()).collect::<Vec<String>>().join(",");
format!("({})", s)
},
Self::None => String::new(),
_ => String::new(),
}
}
pub fn get_str_and_tag(&self) -> (String, isize) {
match self {
Self::Int(i) => (i.to_string(), 0),
Self::Str(s, no) => { (s.clone(), *no) },
Self::None => (String::new(), 0),
_ => (String::new(), 0),
}
}
/// to int array (flatten)
pub fn to_int_array(&self) -> Vec<isize> {
match self {
// 配列をVec<isize>に変換
Self::Array(a) => {
let mut res: Vec<isize> = vec![];
for v in a.iter() {
// 配列の中に配列があれば再帰的に処理
match v {
SValue::Array(a2) => {
for v2 in a2.iter() {
let a3 = v2.to_int_array();
res.extend(a3);
}
},
_ => {
res.push(v.to_i());
}
}
}
res
},
Self::IntArray(a) => a.clone(),
_ => {
vec![self.to_i()]
}
}
}
pub fn to_array(&self) -> Vec<SValue> {
match self {
Self::Array(a) => a.clone(),
Self::IntArray(a) => {
let mut res: Vec<SValue> = vec![];
for v in a.iter() {
res.push(SValue::from_i(*v));
}
res
},
_ => {
vec![self.clone()]
}
}
}
pub fn is_none(&self) -> bool {
match self {
Self::None => true,
_ => false,
}
}
pub fn eq(&self, v: SValue) -> bool {
match v {
Self::Int(vi) => {
let si = self.to_i();
return si == vi;
},
Self::Str(vs, _) => {
let ss = self.to_s();
return ss == vs;
},
Self::None => {
return self.is_none();
},
_ => {},
}
false
}
pub fn ne(&self, v: SValue) -> bool {
!self.eq(v)
}
pub fn gt(&self, v: SValue) -> bool {
match self {
Self::Int(i) => {
return i > &v.to_i();
},
Self::Str(s, _) => {
return s > &v.to_s();
},
_ => {},
}
false
}
pub fn gteq(&self, v: SValue) -> bool {
match self {
Self::Int(i) => {
return i >= &v.to_i();
},
Self::Str(s, _) => {
return s >= &v.to_s();
},
_ => {},
}
false
}
pub fn lt(&self, v: SValue) -> bool {
match self {
Self::Int(i) => {
return i < &v.to_i();
},
Self::Str(s, _) => {
return s < &v.to_s();
},
_ => {},
}
false
}
pub fn div(&self, v: SValue) -> SValue {
let i1 = self.to_i();
let i2 = v.to_i();
if i2 == 0 {
return SValue::from_i(0);
}
SValue::from_i(i1 / i2)
}
pub fn lteq(&self, v: SValue) -> bool {
match self {
Self::Int(i) => {
return i <= &v.to_i();
},
Self::Str(s, _) => {
return s <= &v.to_s();
},
_ => {},
}
false
}
pub fn is_i(&self) -> bool {
match self {
Self::Int(_) => true,
_ => false,
}
}
pub fn is_s(&self) -> bool {
match self {
Self::Str(_, _) => true,
_ => false,
}
}
pub fn is_array(&self) -> bool {
match self {
Self::Array(_) => true,
Self::IntArray(_) => true,
Self::StrArray(_) => true,
_ => false,
}
}
pub fn add(&self, v: SValue) -> SValue {
if self.is_s() || v.is_s() {
let mut s1 = self.to_s().clone();
s1.push_str(&v.to_s());
return Self::Str(s1, 0);
}
// check target
match v {
Self::Int(vi) => {
let si = self.to_i();
return Self::Int(si + vi);
},
_ => {},
}
// others
let i1 = self.to_i();
let i2 = v.to_i();
SValue::Int(i1 + i2)
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_basic() {
//
let si = SValue::from_i(100);
assert_eq!(si.to_i(), 100);
}
#[test]
fn test_comp() {
let a = SValue::from_i(100);
let b = SValue::from_i(200);
assert_eq!(a.lt(b), true);
}
#[test]
fn test_int_array() {
let a = SValue::Array(vec![
SValue::from_i(1),
SValue::from_i(2),
SValue::from_i(3),
SValue::Array(vec![
SValue::from_i(4),
SValue::from_i(5),
SValue::Array(vec![
SValue::from_i(6),
SValue::from_i(7)
])
]),
]);
// to string
let sb = a.to_s();
assert_eq!(sb, "(1,2,3,(4,5,(6,7)))");
// to int array (flatten)
let b = a.to_int_array();
let sb = b.iter().map(|v| v.to_string()).collect::<Vec<String>>().join(",");
assert_eq!(sb, "1,2,3,4,5,6,7");
}
}