2020-03-04 15:00:01 +01:00
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use crate::any::Any;
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use crate::engine::{Array, Engine};
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2020-03-04 16:44:32 +01:00
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use crate::fn_register::RegisterFn;
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2020-03-01 10:37:47 +01:00
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use std::fmt::{Debug, Display};
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2020-03-01 12:26:57 +01:00
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use std::ops::{Add, BitAnd, BitOr, BitXor, Div, Mul, Neg, Range, Rem, Shl, Shr, Sub};
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2020-03-01 10:37:47 +01:00
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macro_rules! reg_op {
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($self:expr, $x:expr, $op:expr, $( $y:ty ),*) => (
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$(
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$self.register_fn($x, $op as fn(x: $y, y: $y)->$y);
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)*
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)
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}
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macro_rules! reg_un {
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($self:expr, $x:expr, $op:expr, $( $y:ty ),*) => (
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$(
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$self.register_fn($x, $op as fn(x: $y)->$y);
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)*
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)
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}
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macro_rules! reg_cmp {
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($self:expr, $x:expr, $op:expr, $( $y:ty ),*) => (
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$(
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$self.register_fn($x, $op as fn(x: $y, y: $y)->bool);
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)*
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)
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}
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macro_rules! reg_func1 {
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($self:expr, $x:expr, $op:expr, $r:ty, $( $y:ty ),*) => (
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$(
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$self.register_fn($x, $op as fn(x: $y)->$r);
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)*
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)
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}
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2020-03-05 03:18:46 +01:00
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#[cfg(not(feature = "no_stdlib"))]
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2020-03-01 10:37:47 +01:00
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macro_rules! reg_func2x {
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($self:expr, $x:expr, $op:expr, $v:ty, $r:ty, $( $y:ty ),*) => (
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$(
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$self.register_fn($x, $op as fn(x: $v, y: $y)->$r);
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)*
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)
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}
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2020-03-05 03:18:46 +01:00
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#[cfg(not(feature = "no_stdlib"))]
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2020-03-01 10:37:47 +01:00
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macro_rules! reg_func2y {
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($self:expr, $x:expr, $op:expr, $v:ty, $r:ty, $( $y:ty ),*) => (
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$(
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$self.register_fn($x, $op as fn(y: $y, x: $v)->$r);
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)*
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)
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}
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2020-03-05 03:18:46 +01:00
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#[cfg(not(feature = "no_stdlib"))]
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2020-03-01 10:37:47 +01:00
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macro_rules! reg_func3 {
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($self:expr, $x:expr, $op:expr, $v:ty, $w:ty, $r:ty, $( $y:ty ),*) => (
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$(
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$self.register_fn($x, $op as fn(x: $v, y: $w, z: $y)->$r);
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)*
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)
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}
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2020-03-04 15:00:01 +01:00
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impl Engine<'_> {
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2020-03-04 16:44:32 +01:00
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/// Register the core built-in library.
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pub(crate) fn register_core_lib(&mut self) {
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2020-03-01 10:37:47 +01:00
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fn add<T: Add>(x: T, y: T) -> <T as Add>::Output {
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x + y
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}
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fn sub<T: Sub>(x: T, y: T) -> <T as Sub>::Output {
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x - y
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}
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fn mul<T: Mul>(x: T, y: T) -> <T as Mul>::Output {
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x * y
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}
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fn div<T: Div>(x: T, y: T) -> <T as Div>::Output {
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x / y
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}
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fn neg<T: Neg>(x: T) -> <T as Neg>::Output {
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-x
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}
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fn lt<T: PartialOrd>(x: T, y: T) -> bool {
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x < y
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}
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fn lte<T: PartialOrd>(x: T, y: T) -> bool {
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x <= y
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}
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fn gt<T: PartialOrd>(x: T, y: T) -> bool {
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x > y
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}
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fn gte<T: PartialOrd>(x: T, y: T) -> bool {
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x >= y
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}
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fn eq<T: PartialEq>(x: T, y: T) -> bool {
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x == y
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}
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fn ne<T: PartialEq>(x: T, y: T) -> bool {
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x != y
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}
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fn and(x: bool, y: bool) -> bool {
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x && y
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}
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fn or(x: bool, y: bool) -> bool {
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x || y
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}
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fn not(x: bool) -> bool {
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!x
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}
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fn binary_and<T: BitAnd>(x: T, y: T) -> <T as BitAnd>::Output {
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x & y
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}
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fn binary_or<T: BitOr>(x: T, y: T) -> <T as BitOr>::Output {
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x | y
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}
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fn binary_xor<T: BitXor>(x: T, y: T) -> <T as BitXor>::Output {
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x ^ y
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}
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fn left_shift<T: Shl<T>>(x: T, y: T) -> <T as Shl<T>>::Output {
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x.shl(y)
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}
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fn right_shift<T: Shr<T>>(x: T, y: T) -> <T as Shr<T>>::Output {
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x.shr(y)
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}
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fn modulo<T: Rem<T>>(x: T, y: T) -> <T as Rem<T>>::Output {
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x % y
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}
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fn pow_i64_i64(x: i64, y: i64) -> i64 {
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x.pow(y as u32)
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}
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fn pow_f64_f64(x: f64, y: f64) -> f64 {
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x.powf(y)
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}
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fn pow_f64_i64(x: f64, y: i64) -> f64 {
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x.powi(y as i32)
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}
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2020-03-02 15:32:08 +01:00
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reg_op!(self, "+", add, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64);
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reg_op!(self, "-", sub, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64);
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reg_op!(self, "*", mul, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64);
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reg_op!(self, "/", div, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64);
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2020-03-01 10:37:47 +01:00
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2020-03-02 15:32:08 +01:00
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reg_cmp!(self, "<", lt, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64, String, char);
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reg_cmp!(self, "<=", lte, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64, String, char);
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reg_cmp!(self, ">", gt, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64, String, char);
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reg_cmp!(self, ">=", gte, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64, String, char);
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reg_cmp!(
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self, "==", eq, i8, u8, i16, u16, i32, i64, u32, u64, bool, f32, f64, String, char
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);
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reg_cmp!(
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self, "!=", ne, i8, u8, i16, u16, i32, i64, u32, u64, bool, f32, f64, String, char
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);
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2020-03-01 10:37:47 +01:00
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2020-03-02 05:08:03 +01:00
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//reg_op!(self, "||", or, bool);
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//reg_op!(self, "&&", and, bool);
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2020-03-02 15:32:08 +01:00
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reg_op!(self, "|", binary_or, i8, u8, i16, u16, i32, i64, u32, u64);
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2020-03-01 10:37:47 +01:00
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reg_op!(self, "|", or, bool);
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2020-03-02 15:32:08 +01:00
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reg_op!(self, "&", binary_and, i8, u8, i16, u16, i32, i64, u32, u64);
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2020-03-01 10:37:47 +01:00
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reg_op!(self, "&", and, bool);
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2020-03-02 15:32:08 +01:00
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reg_op!(self, "^", binary_xor, i8, u8, i16, u16, i32, i64, u32, u64);
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reg_op!(self, "<<", left_shift, i8, u8, i16, u16, i32, i64, u32, u64);
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reg_op!(self, ">>", right_shift, i8, u8, i16, u16);
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2020-03-01 10:37:47 +01:00
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reg_op!(self, ">>", right_shift, i32, i64, u32, u64);
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2020-03-02 15:32:08 +01:00
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reg_op!(self, "%", modulo, i8, u8, i16, u16, i32, i64, u32, u64);
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2020-03-01 10:37:47 +01:00
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self.register_fn("~", pow_i64_i64);
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self.register_fn("~", pow_f64_f64);
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self.register_fn("~", pow_f64_i64);
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2020-03-02 15:32:08 +01:00
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reg_un!(self, "-", neg, i8, i16, i32, i64, f32, f64);
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2020-03-01 10:37:47 +01:00
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reg_un!(self, "!", not, bool);
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2020-03-05 03:18:46 +01:00
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self.register_fn("+", |x: String, y: String| x + &y); // String + String
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self.register_fn("==", |_: (), _: ()| true); // () == ()
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2020-03-01 10:37:47 +01:00
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2020-03-04 16:44:32 +01:00
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// Register print and debug
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fn print_debug<T: Debug>(x: T) -> String {
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format!("{:?}", x)
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}
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fn print<T: Display>(x: T) -> String {
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format!("{}", x)
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}
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reg_func1!(self, "print", print, String, i8, u8, i16, u16);
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reg_func1!(self, "print", print, String, i32, i64, u32, u64);
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reg_func1!(self, "print", print, String, f32, f64, bool, char, String);
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reg_func1!(self, "print", print_debug, String, Array);
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self.register_fn("print", || "".to_string());
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self.register_fn("print", |_: ()| "".to_string());
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reg_func1!(self, "debug", print_debug, String, i8, u8, i16, u16);
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reg_func1!(self, "debug", print_debug, String, i32, i64, u32, u64);
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reg_func1!(self, "debug", print_debug, String, f32, f64, bool, char);
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reg_func1!(self, "debug", print_debug, String, String, Array, ());
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// Register array iterator
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self.register_iterator::<Array, _>(|a| {
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Box::new(a.downcast_ref::<Array>().unwrap().clone().into_iter())
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});
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// Register range function
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self.register_iterator::<Range<i64>, _>(|a| {
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Box::new(
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a.downcast_ref::<Range<i64>>()
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.unwrap()
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.clone()
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.map(|n| n.into_dynamic()),
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)
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});
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self.register_fn("range", |i1: i64, i2: i64| (i1..i2));
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}
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/// Register the built-in library.
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2020-03-05 03:18:46 +01:00
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#[cfg(not(feature = "no_stdlib"))]
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2020-03-04 16:44:32 +01:00
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pub(crate) fn register_stdlib(&mut self) {
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2020-03-05 03:18:46 +01:00
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use crate::fn_register::RegisterDynamicFn;
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2020-03-01 10:37:47 +01:00
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// Register conversion functions
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2020-03-02 15:32:08 +01:00
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self.register_fn("to_float", |x: i8| x as f64);
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self.register_fn("to_float", |x: u8| x as f64);
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self.register_fn("to_float", |x: i16| x as f64);
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self.register_fn("to_float", |x: u16| x as f64);
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2020-03-01 10:37:47 +01:00
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self.register_fn("to_float", |x: i32| x as f64);
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self.register_fn("to_float", |x: u32| x as f64);
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self.register_fn("to_float", |x: i64| x as f64);
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self.register_fn("to_float", |x: u64| x as f64);
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self.register_fn("to_float", |x: f32| x as f64);
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2020-03-02 15:32:08 +01:00
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self.register_fn("to_int", |x: i8| x as i64);
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self.register_fn("to_int", |x: u8| x as i64);
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self.register_fn("to_int", |x: i16| x as i64);
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self.register_fn("to_int", |x: u16| x as i64);
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2020-03-01 10:37:47 +01:00
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self.register_fn("to_int", |x: i32| x as i64);
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self.register_fn("to_int", |x: u32| x as i64);
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self.register_fn("to_int", |x: u64| x as i64);
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self.register_fn("to_int", |x: f32| x as i64);
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self.register_fn("to_int", |x: f64| x as i64);
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2020-03-02 15:32:08 +01:00
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2020-03-01 10:37:47 +01:00
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self.register_fn("to_int", |ch: char| ch as i64);
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// Register array utility functions
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fn push<T: Any>(list: &mut Array, item: T) {
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list.push(Box::new(item));
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}
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fn pad<T: Any + Clone>(list: &mut Array, len: i64, item: T) {
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if len >= 0 {
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while list.len() < len as usize {
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push(list, item.clone());
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}
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}
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}
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2020-03-02 15:32:08 +01:00
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reg_func2x!(self, "push", push, &mut Array, (), i8, u8, i16, u16);
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2020-03-01 10:37:47 +01:00
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reg_func2x!(self, "push", push, &mut Array, (), i32, i64, u32, u64);
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reg_func2x!(self, "push", push, &mut Array, (), f32, f64, bool, char);
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reg_func2x!(self, "push", push, &mut Array, (), String, Array, ());
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2020-03-02 15:32:08 +01:00
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reg_func3!(self, "pad", pad, &mut Array, i64, (), i8, u8, i16, u16);
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2020-03-01 10:37:47 +01:00
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reg_func3!(self, "pad", pad, &mut Array, i64, (), i32, u32, f32);
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reg_func3!(self, "pad", pad, &mut Array, i64, (), i64, u64, f64);
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reg_func3!(self, "pad", pad, &mut Array, i64, (), bool, char);
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reg_func3!(self, "pad", pad, &mut Array, i64, (), String, Array, ());
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2020-03-03 10:28:38 +01:00
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self.register_dynamic_fn("pop", |list: &mut Array| {
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2020-03-04 16:44:32 +01:00
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list.pop().unwrap_or_else(|| ().into_dynamic())
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2020-03-03 10:28:38 +01:00
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});
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2020-03-04 16:44:32 +01:00
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self.register_dynamic_fn("shift", |list: &mut Array| match list.len() {
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0 => ().into_dynamic(),
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_ => list.remove(0),
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2020-03-01 10:37:47 +01:00
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});
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self.register_fn("len", |list: &mut Array| list.len() as i64);
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self.register_fn("clear", |list: &mut Array| list.clear());
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self.register_fn("truncate", |list: &mut Array, len: i64| {
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if len >= 0 {
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list.truncate(len as usize);
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}
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});
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// Register string concatenate functions
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fn prepend<T: Display>(x: T, y: String) -> String {
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format!("{}{}", x, y)
|
|
|
|
}
|
|
|
|
fn append<T: Display>(x: String, y: T) -> String {
|
|
|
|
format!("{}{}", x, y)
|
|
|
|
}
|
|
|
|
|
2020-03-02 15:32:08 +01:00
|
|
|
reg_func2x!(
|
|
|
|
self, "+", append, String, String, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64,
|
|
|
|
bool, char
|
|
|
|
);
|
2020-03-01 10:37:47 +01:00
|
|
|
self.register_fn("+", |x: String, y: Array| format!("{}{:?}", x, y));
|
|
|
|
self.register_fn("+", |x: String, _: ()| format!("{}", x));
|
|
|
|
|
2020-03-02 15:32:08 +01:00
|
|
|
reg_func2y!(
|
|
|
|
self, "+", prepend, String, String, i8, u8, i16, u16, i32, i64, u32, u64, f32, f64,
|
|
|
|
bool, char
|
|
|
|
);
|
2020-03-01 10:37:47 +01:00
|
|
|
self.register_fn("+", |x: Array, y: String| format!("{:?}{}", x, y));
|
|
|
|
self.register_fn("+", |_: (), y: String| format!("{}", y));
|
|
|
|
|
|
|
|
// Register string utility functions
|
|
|
|
self.register_fn("len", |s: &mut String| s.chars().count() as i64);
|
|
|
|
self.register_fn("contains", |s: &mut String, ch: char| s.contains(ch));
|
|
|
|
self.register_fn("contains", |s: &mut String, find: String| s.contains(&find));
|
|
|
|
self.register_fn("clear", |s: &mut String| s.clear());
|
|
|
|
self.register_fn("truncate", |s: &mut String, len: i64| {
|
|
|
|
if len >= 0 {
|
|
|
|
let chars: Vec<_> = s.chars().take(len as usize).collect();
|
|
|
|
s.clear();
|
|
|
|
chars.iter().for_each(|&ch| s.push(ch));
|
|
|
|
} else {
|
|
|
|
s.clear();
|
|
|
|
}
|
|
|
|
});
|
|
|
|
self.register_fn("pad", |s: &mut String, len: i64, ch: char| {
|
|
|
|
for _ in 0..s.chars().count() - len as usize {
|
|
|
|
s.push(ch);
|
|
|
|
}
|
|
|
|
});
|
|
|
|
self.register_fn("replace", |s: &mut String, find: String, sub: String| {
|
|
|
|
let new_str = s.replace(&find, &sub);
|
|
|
|
s.clear();
|
|
|
|
s.push_str(&new_str);
|
|
|
|
});
|
|
|
|
self.register_fn("trim", |s: &mut String| {
|
|
|
|
let trimmed = s.trim();
|
|
|
|
|
|
|
|
if trimmed.len() < s.len() {
|
|
|
|
let chars: Vec<_> = trimmed.chars().collect();
|
|
|
|
s.clear();
|
|
|
|
chars.iter().for_each(|&ch| s.push(ch));
|
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|