Move BinOp into ast subcrate
now builtins is only builtin semantics and has nothing to do with operators
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b0a1f3337c
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@ -1,7 +1,6 @@
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use std::rc::Rc;
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use std::convert::From;
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use crate::builtin::{BinOp};
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use crate::typechecking::TypeData;
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mod operators;
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@ -1,6 +1,7 @@
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use std::rc::Rc;
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use std::str::FromStr;
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use crate::tokenizing::TokenKind;
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use crate::builtin::Builtin;
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#[derive(Debug, PartialEq, Clone)]
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@ -39,3 +40,72 @@ impl FromStr for PrefixOp {
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builtin.map(|builtin| PrefixOp { sigil: Rc::new(s.to_string()), builtin: Some(builtin) })
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}
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}
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#[derive(Debug, PartialEq, Clone)]
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pub struct BinOp {
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sigil: Rc<String>,
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pub builtin: Option<Builtin>,
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}
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impl BinOp {
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pub fn from_sigil(sigil: &str) -> BinOp {
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let builtin = Builtin::from_str(sigil).ok();
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BinOp { sigil: Rc::new(sigil.to_string()), builtin }
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}
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pub fn sigil(&self) -> &Rc<String> {
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&self.sigil
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}
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pub fn from_sigil_token(tok: &TokenKind) -> Option<BinOp> {
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let s = token_kind_to_sigil(tok)?;
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Some(BinOp::from_sigil(s))
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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_from_token(op_tok: &TokenKind) -> Option<i32> {
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let s = token_kind_to_sigil(op_tok)?;
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Some(binop_precedences(s))
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}
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pub fn get_precedence(&self) -> i32 {
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binop_precedences(&self.sigil)
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}
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}
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fn token_kind_to_sigil<'a>(tok: &'a TokenKind) -> Option<&'a str> {
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use self::TokenKind::*;
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Some(match tok {
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Operator(op) => op.as_str(),
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Period => ".",
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Pipe => "|",
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Slash => "/",
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LAngleBracket => "<",
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RAngleBracket => ">",
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Equals => "=",
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_ => return None
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})
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}
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fn binop_precedences(s: &str) -> i32 {
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let default = 10_000_000;
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match s {
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"+" => 10,
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"-" => 10,
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"*" => 20,
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"/" => 20,
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"%" => 20,
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"++" => 30,
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"^" => 30,
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"&" => 20,
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"|" => 20,
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">" => 20,
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">=" => 20,
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"<" => 20,
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"<=" => 20,
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"==" => 40,
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"=" => 10,
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"<=>" => 30,
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_ => default,
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}
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}
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@ -1,8 +1,5 @@
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use std::rc::Rc;
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use std::collections::HashMap;
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use std::str::FromStr;
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use crate::tokenizing::TokenKind;
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use crate::typechecking::{TypeConst, Type};
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#[derive(Debug, Clone, Copy, PartialEq)]
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@ -103,86 +100,3 @@ impl FromStr for Builtin {
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})
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}
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}
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#[derive(Debug, PartialEq, Clone)]
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pub struct BinOp {
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sigil: Rc<String>,
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pub builtin: Option<Builtin>,
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}
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fn token_kind_to_sigil<'a>(tok: &'a TokenKind) -> Option<&'a str> {
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use self::TokenKind::*;
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Some(match tok {
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Operator(op) => op.as_str(),
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Period => ".",
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Pipe => "|",
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Slash => "/",
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LAngleBracket => "<",
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RAngleBracket => ">",
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Equals => "=",
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_ => return None
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})
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}
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impl BinOp {
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pub fn from_sigil(sigil: &str) -> BinOp {
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let builtin = Builtin::from_str(sigil).ok();
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BinOp { sigil: Rc::new(sigil.to_string()), builtin }
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}
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pub fn sigil(&self) -> &Rc<String> {
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&self.sigil
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}
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pub fn from_sigil_token(tok: &TokenKind) -> Option<BinOp> {
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let s = token_kind_to_sigil(tok)?;
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Some(BinOp::from_sigil(s))
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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_from_token(op_tok: &TokenKind) -> Option<i32> {
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let s = token_kind_to_sigil(op_tok)?;
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let default = 10_000_000;
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Some(BINOPS.get(s).map(|x| x.2.clone()).unwrap_or_else(|| {
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default
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}))
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}
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pub fn get_precedence(&self) -> i32 {
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let s: &str = &self.sigil;
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let default = 10_000_000;
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BINOPS.get(s).map(|x| x.2.clone()).unwrap_or_else(|| {
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default
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})
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}
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}
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//TODO mapping between sigil string and precedence should live in ast.rs
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//mapping between operation and type should live here in builtins.rs
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/* the second tuple member is a placeholder for when I want to make evaluation rules tied to the
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* binop definition */
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//TODO some of these types are going to have to be adjusted
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lazy_static! {
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static ref BINOPS: HashMap<&'static str, (Type, (), i32)> =
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hashmap! {
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"+" => (ty!(Nat -> Nat -> Nat), (), 10),
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"-" => (ty!(Nat -> Nat -> Nat), (), 10),
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"*" => (ty!(Nat -> Nat -> Nat), (), 20),
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"/" => (ty!(Nat -> Nat -> Float), (), 20),
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"quot" => (ty!(Nat -> Nat -> Nat), (), 20),
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"%" => (ty!(Nat -> Nat -> Nat), (), 20),
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"++" => (ty!(StringT -> StringT -> StringT), (), 30),
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"^" => (ty!(Nat -> Nat -> Nat), (), 20),
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"&" => (ty!(Nat -> Nat -> Nat), (), 20),
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"|" => (ty!(Nat -> Nat -> Nat), (), 20),
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">" => (ty!(Nat -> Nat -> Bool), (), 20),
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">=" => (ty!(Nat -> Nat -> Bool), (), 20),
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"<" => (ty!(Nat -> Nat -> Bool), (), 20),
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"<=" => (ty!(Nat -> Nat -> Bool), (), 20),
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"==" => (ty!(Nat -> Nat -> Bool), (), 20),
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"=" => (ty!(Unit), (), 20), //TODO not sure what the type of this should be b/c special fmr
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"<=>" => (ty!(Nat -> Nat -> Ordering), (), 20), //TODO figure out how to treat Order
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};
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}
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@ -153,8 +153,6 @@ use crate::tokenizing::TokenKind::*;
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use crate::ast::*;
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use crate::builtin::{BinOp};
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/// Represents a parsing error
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#[derive(Debug)]
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pub struct ParseError {
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@ -4,8 +4,7 @@ use std::str::FromStr;
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use super::tokenize;
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use super::ParseResult;
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use crate::builtin::{BinOp};
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use crate::ast::{AST, Meta, Expression, Statement, IfExpressionBody, Discriminator, Pattern, PatternLiteral, TypeBody, Enumerator, ForBody, InvocationArgument, FormalParam, PrefixOp};
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use crate::ast::{AST, Meta, Expression, Statement, IfExpressionBody, Discriminator, Pattern, PatternLiteral, TypeBody, Enumerator, ForBody, InvocationArgument, FormalParam, PrefixOp, BinOp};
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use super::Statement::*;
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use super::Declaration::*;
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use super::Signature;
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@ -17,7 +17,7 @@ use std::str::FromStr;
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use crate::ast::*;
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use crate::symbol_table::{Symbol, SymbolSpec, SymbolTable};
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use crate::builtin::{BinOp, Builtin};
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use crate::builtin::Builtin;
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#[derive(Debug)]
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pub struct ReducedAST(pub Vec<Stmt>);
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use crate::ast::*;
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use crate::util::ScopeStack;
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use crate::builtin::{BinOp};
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#[derive(Debug, Clone, PartialEq)]
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