diff options
Diffstat (limited to 'src/parse')
| -rw-r--r-- | src/parse/ast/expression.rs | 20 | ||||
| -rw-r--r-- | src/parse/ast/nodes.rs | 9 | ||||
| -rw-r--r-- | src/parse/parser.rs | 27 |
3 files changed, 44 insertions, 12 deletions
diff --git a/src/parse/ast/expression.rs b/src/parse/ast/expression.rs index 1eec69d..b2b9678 100644 --- a/src/parse/ast/expression.rs +++ b/src/parse/ast/expression.rs @@ -1,8 +1,8 @@ use std::fmt::{self, Display, Formatter}; use super::nodes::{ - ArrayAccessNode, BinaryOperator, BlockNode, CallNode, FnNode, Identifier, IfNode, Literal, - LoopNode, MemberAccessNode, UnaryOperator, + ArrayAccessNode, ArrayNode, BinaryOperator, BlockNode, CallNode, FnNode, Identifier, IfNode, + LoopNode, MemberAccessNode, SimpleLiteral, UnaryOperator, }; #[derive(Debug, Clone)] @@ -21,10 +21,11 @@ pub enum Expression { MemberAccess(Box<MemberAccessNode>), Group(Box<Expression>), Block(Box<BlockNode>), - Fn(Box<FnNode>), If(Box<IfNode>), Loop(Box<LoopNode>), - Literal(Literal), + FnLiteral(Box<FnNode>), + ArrayLiteral(ArrayNode), + SimpleLiteral(SimpleLiteral), Identifier(Identifier), } @@ -81,7 +82,7 @@ impl Expression { Expression::Block(block) => { Self::block_fmt(f, block, depth + 1)?; } - Expression::Fn(node) => { + Expression::FnLiteral(node) => { write!(f, "{}Fn (", pad)?; // Write self receiver @@ -107,7 +108,14 @@ impl Expression { )?; Self::block_fmt(f, &node.body, depth + 1)?; } - Expression::Literal(literal) => { + Expression::ArrayLiteral(node) => { + writeln!(f, "{}Array Literal:", pad)?; + for (i, c) in node.elements.iter().enumerate() { + writeln!(f, "{}- Element {}:", pad, i)?; + c.nested_fmt(f, depth + 1)?; + } + } + Expression::SimpleLiteral(literal) => { writeln!(f, "{}Literal: {:?}", pad, literal)?; } Expression::Identifier(identifier) => { diff --git a/src/parse/ast/nodes.rs b/src/parse/ast/nodes.rs index 617a01c..bffaea3 100644 --- a/src/parse/ast/nodes.rs +++ b/src/parse/ast/nodes.rs @@ -57,14 +57,14 @@ impl UnaryOperator { } #[derive(Debug, Clone)] -pub enum Literal { +pub enum SimpleLiteral { Int(u32), Float(f32), Str(String), Bool(bool), } -impl Literal { +impl SimpleLiteral { pub fn from_token(token: Token) -> Self { match token.variant { Int(int) => Self::Int(int), @@ -112,6 +112,11 @@ pub struct FnNode { } #[derive(Debug, Clone)] +pub struct ArrayNode { + pub elements: Vec<Expression>, +} + +#[derive(Debug, Clone)] pub struct FnHeader { pub has_self_receiver: bool, pub parameters: Vec<TypedIdentifier>, diff --git a/src/parse/parser.rs b/src/parse/parser.rs index 2083f75..a882f35 100644 --- a/src/parse/parser.rs +++ b/src/parse/parser.rs @@ -1,11 +1,11 @@ use super::ast::expression::Expression; -use super::ast::nodes::{LoopNode, UnaryOperator}; +use super::ast::nodes::{ArrayNode, LoopNode, UnaryOperator}; use super::ast::statement::Statement; use super::ast::Program; use crate::lex::token::TokenVariant::*; use crate::parse::ast::nodes::{ ArrayAccessNode, BinaryOperator, BlockNode, CallNode, ConditionalBlock, FnHeader, FnNode, - IfNode, Literal, MemberAccessNode, TypedIdentifier, + IfNode, MemberAccessNode, SimpleLiteral, TypedIdentifier, }; use crate::{check, consume, consume_if, inner, lex::token::Token}; use anyhow::{anyhow, Result}; @@ -227,7 +227,9 @@ impl<T: Iterator<Item = Token>> Parser<T> { match token.variant { Int(_) | Float(_) | Str(_) | KeywordTrue | KeywordFalse => { let literal = self.tokens.next().unwrap(); - Ok(Expression::Literal(Literal::from_token(literal))) + Ok(Expression::SimpleLiteral(SimpleLiteral::from_token( + literal, + ))) } Ident(_) => Ok(Expression::Identifier(inner!( self.tokens.next().unwrap(), @@ -235,7 +237,8 @@ impl<T: Iterator<Item = Token>> Parser<T> { ))), GroupOpen => Ok(Expression::Group(Box::new(self.group()?))), BlockOpen => Ok(Expression::Block(Box::new(self.generic_block()?))), - KeywordFn => Ok(Expression::Fn(Box::new(self.function()?))), + ArrayOpen => Ok(Expression::ArrayLiteral(self.array()?)), + KeywordFn => Ok(Expression::FnLiteral(Box::new(self.function()?))), KeywordIf => Ok(Expression::If(Box::new(self.conditional()?))), KeywordLoop => Ok(Expression::Loop(Box::new(self.repeating()?))), _ => Err(anyhow!("Unexpected token: {:?}", token.variant)), @@ -252,6 +255,22 @@ impl<T: Iterator<Item = Token>> Parser<T> { Ok(expression) } + fn array(&mut self) -> Result<ArrayNode> { + consume!(self, ArrayOpen)?; + let mut elements = Vec::new(); + + loop { + elements.push(self.expression()?); + + if consume_if!(self, Comma).is_none() { + break; + } + } + + consume!(self, ArrayClose)?; + Ok(ArrayNode { elements }) + } + fn function(&mut self) -> Result<FnNode> { consume!(self, KeywordFn)?; let token = self.tokens.next().expect("Expected function header."); |
