41 lines
687 B
Rust
41 lines
687 B
Rust
use std::rc::Rc;
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#[derive(Debug, PartialEq, Clone)]
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pub struct BinOp {
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pub sigil: Rc<String>
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}
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#[derive(Debug, PartialEq, Clone)]
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pub struct PrefixOp {
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pub sigil: Rc<String>
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}
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impl BinOp {
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pub fn from_sigil(sigil: Rc<String>) -> BinOp {
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BinOp { sigil }
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}
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pub fn min_precedence() -> i32 {
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i32::min_value()
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}
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pub fn get_precedence(op: &str) -> i32 {
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match op {
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"+" | "-" => 10,
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"*" | "/" | "%" => 20,
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_ => 30,
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}
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}
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}
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impl PrefixOp {
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pub fn from_sigil(sigil: Rc<String>) -> PrefixOp {
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PrefixOp { sigil }
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}
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pub fn is_prefix(op: &str) -> bool {
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match op {
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"+" | "-" | "!" | "~" => true,
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_ => false,
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}
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}
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}
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