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Begin large refactor to enhance type handling

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This commit is contained in:
Jeff 2024-11-09 21:40:33 -05:00
parent d82aed1a93
commit 8af8e48ebd
16 changed files with 479 additions and 372 deletions
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87
dust-lang/src/chunk.rs
View File

@ -11,7 +11,7 @@ use std::{
use serde::{Deserialize, Serialize};
use crate::{Disassembler, Instruction, Operation, Span, Type, Value};
use crate::{Disassembler, Instruction, Span, Type, Value};
/// In-memory representation of a Dust program or function.
///
@ -24,6 +24,7 @@ pub struct Chunk {
constants: Vec<Value>,
locals: Vec<Local>,
return_type: Type,
current_scope: Scope,
block_index: u8,
}
@ -35,6 +36,7 @@ impl Chunk {
instructions: Vec::new(),
constants: Vec::new(),
locals: Vec::new(),
return_type: Type::None,
current_scope: Scope::default(),
block_index: 0,
}
@ -51,6 +53,7 @@ impl Chunk {
instructions,
constants,
locals,
return_type: Type::None,
current_scope: Scope::default(),
block_index: 0,
}
@ -172,78 +175,26 @@ impl Chunk {
}
}
pub fn get_constant_type(&self, constant_index: u8) -> Option<Type> {
pub fn get_constant_type(&self, constant_index: u8) -> Result<Type, ChunkError> {
self.constants
.get(constant_index as usize)
.map(|value| value.r#type())
}
pub fn get_local_type(&self, local_index: u8) -> Option<Type> {
self.locals.get(local_index as usize)?.r#type.clone()
}
pub fn get_register_type(&self, register_index: u8) -> Option<Type> {
self.instructions
.iter()
.enumerate()
.find_map(|(index, (instruction, _))| {
if let Operation::LoadList = instruction.operation() {
if instruction.a() == register_index {
let mut length = (instruction.c() - instruction.b() + 1) as usize;
let mut item_type = Type::Any;
let distance_to_end = self.len() - index;
for (instruction, _) in self
.instructions()
.iter()
.rev()
.skip(distance_to_end)
.take(length)
{
if let Operation::Close = instruction.operation() {
length -= (instruction.c() - instruction.b()) as usize;
} else if let Type::Any = item_type {
item_type = instruction.yielded_type(self).unwrap_or(Type::Any);
}
}
return Some(Type::List {
item_type: Box::new(item_type),
length,
});
}
}
if instruction.yields_value() && instruction.a() == register_index {
instruction.yielded_type(self)
} else {
None
}
.ok_or(ChunkError::ConstantIndexOutOfBounds {
index: constant_index as usize,
})
}
pub fn return_type(&self) -> Option<Type> {
let returns_value = self
.instructions()
.last()
.map(|(instruction, _)| {
debug_assert!(matches!(instruction.operation(), Operation::Return));
instruction.b_as_boolean()
pub fn get_local_type(&self, local_index: u8) -> Result<&Type, ChunkError> {
self.locals
.get(local_index as usize)
.map(|local| &local.r#type)
.ok_or(ChunkError::LocalIndexOutOfBounds {
index: local_index as usize,
})
.unwrap_or(false);
}
if returns_value {
self.instructions.iter().rev().find_map(|(instruction, _)| {
if instruction.yields_value() {
instruction.yielded_type(self)
} else {
None
}
})
} else {
None
}
pub fn return_type(&self) -> &Type {
&self.return_type
}
pub fn disassembler(&self) -> Disassembler {
@ -288,7 +239,7 @@ pub struct Local {
pub identifier_index: u8,
/// The expected type of the local's value.
pub r#type: Option<Type>,
pub r#type: Type,
/// Whether the local is mutable.
pub is_mutable: bool,
@ -299,7 +250,7 @@ pub struct Local {
impl Local {
/// Creates a new Local instance.
pub fn new(identifier_index: u8, r#type: Option<Type>, mutable: bool, scope: Scope) -> Self {
pub fn new(identifier_index: u8, r#type: Type, mutable: bool, scope: Scope) -> Self {
Self {
identifier_index,
r#type,
@ -350,7 +301,6 @@ pub enum ChunkError {
ConstantIndexOutOfBounds { index: usize },
InstructionIndexOutOfBounds { index: usize },
LocalIndexOutOfBounds { index: usize },
PoisonedChunk,
}
impl Display for ChunkError {
@ -365,7 +315,6 @@ impl Display for ChunkError {
ChunkError::LocalIndexOutOfBounds { index } => {
write!(f, "Local index {} out of bounds", index)
}
ChunkError::PoisonedChunk => write!(f, "Chunk is poisoned"),
}
}
}

408
dust-lang/src/compiler.rs
View File

@ -13,9 +13,9 @@ use std::{
use colored::Colorize;
use crate::{
optimize, AnnotatedError, Chunk, ChunkError, DustError, FunctionType, Instruction, LexError,
Lexer, Local, NativeFunction, Operation, Scope, Span, Token, TokenKind, TokenOwned, Type,
Value,
AnnotatedError, Chunk, ChunkError, DustError, FunctionType, Instruction, LexError, Lexer,
Local, NativeFunction, Operation, Optimizer, Scope, Span, Token, TokenKind, TokenOwned, Type,
TypeConflict, Value,
};
/// Compiles the input and returns a chunk.
@ -51,7 +51,7 @@ pub struct Compiler<'src> {
local_definitions: Vec<u8>,
optimization_count: usize,
previous_is_expression: bool,
previous_expression_type: Type,
minimum_register: u8,
current_token: Token<'src>,
@ -77,7 +77,7 @@ impl<'src> Compiler<'src> {
lexer,
local_definitions: Vec::new(),
optimization_count: 0,
previous_is_expression: false,
previous_expression_type: Type::None,
minimum_register: 0,
current_token,
current_position,
@ -167,10 +167,10 @@ impl<'src> Compiler<'src> {
})
}
pub fn declare_local(
fn declare_local(
&mut self,
identifier: &str,
r#type: Option<Type>,
r#type: Type,
is_mutable: bool,
scope: Scope,
register_index: u8,
@ -230,35 +230,27 @@ impl<'src> Compiler<'src> {
})
}
fn get_last_value_operation(&self) -> Option<Operation> {
self.chunk
.instructions()
.iter()
.last()
.map(|(instruction, _)| instruction.operation())
}
fn get_last_operations<const COUNT: usize>(&self) -> Option<[Operation; COUNT]> {
let mut n_operations = [Operation::Return; COUNT];
fn get_last_instructions<const COUNT: usize>(&self) -> Option<[Operation; COUNT]> {
let mut operations = [Operation::Return; COUNT];
for (index, (instruction, _)) in self
.chunk
.instructions()
.iter()
.rev()
.take(COUNT)
.enumerate()
{
operations[index] = instruction.operation();
for (nth, operation) in n_operations.iter_mut().rev().zip(
self.chunk
.instructions()
.iter()
.rev()
.map(|(instruction, _)| instruction.operation()),
) {
*nth = operation;
}
Some(operations)
Some(n_operations)
}
fn get_last_jumpable_mut(&mut self) -> Option<&mut Instruction> {
self.chunk
.instructions_mut()
.iter_mut()
.rev()
.find_map(|(instruction, _)| {
if let Operation::LoadBoolean | Operation::LoadConstant = instruction.operation() {
Some(instruction)
@ -268,6 +260,101 @@ impl<'src> Compiler<'src> {
})
}
pub fn get_instruction_type(&self, instruction: &Instruction) -> Result<Type, CompileError> {
use Operation::*;
match instruction.operation() {
Add | Divide | Modulo | Multiply | Subtract => {
if instruction.b_is_constant() {
self.chunk
.get_constant_type(instruction.b())
.map_err(|error| CompileError::Chunk {
error,
position: self.current_position,
})
} else {
self.get_register_type(instruction.b())
}
}
LoadBoolean | Not => Ok(Type::Boolean),
Negate => {
if instruction.b_is_constant() {
self.chunk
.get_constant_type(instruction.b())
.map_err(|error| CompileError::Chunk {
error,
position: self.current_position,
})
} else {
self.get_register_type(instruction.b())
}
}
LoadConstant => self
.chunk
.get_constant_type(instruction.b())
.map_err(|error| CompileError::Chunk {
error,
position: self.current_position,
}),
LoadList => self.get_register_type(instruction.a()),
GetLocal => self
.chunk
.get_local_type(instruction.b())
.cloned()
.map_err(|error| CompileError::Chunk {
error,
position: self.current_position,
}),
CallNative => {
let native_function = NativeFunction::from(instruction.b());
Ok(*native_function.r#type().return_type)
}
_ => Ok(Type::None),
}
}
pub fn get_register_type(&self, register_index: u8) -> Result<Type, CompileError> {
for (index, (instruction, _)) in self.chunk.instructions().iter().enumerate() {
if let Operation::LoadList = instruction.operation() {
if instruction.a() == register_index {
let mut length = (instruction.c() - instruction.b() + 1) as usize;
let mut item_type = Type::Any;
let distance_to_end = self.chunk.len() - index;
for (instruction, _) in self
.chunk
.instructions()
.iter()
.rev()
.skip(distance_to_end)
.take(length)
{
if let Operation::Close = instruction.operation() {
length -= (instruction.c() - instruction.b()) as usize;
} else if let Type::Any = item_type {
item_type = self.get_instruction_type(instruction)?;
}
}
return Ok(Type::List {
item_type: Box::new(item_type),
length,
});
}
}
if instruction.yields_value() && instruction.a() == register_index {
return self.get_instruction_type(instruction);
}
}
Err(CompileError::CannotResolveRegisterType {
register_index: register_index as usize,
position: self.current_position,
})
}
fn emit_constant(&mut self, value: Value, position: Span) -> Result<(), CompileError> {
let constant_index = self.chunk.push_or_get_constant(value);
let register = self.next_register();
@ -294,7 +381,7 @@ impl<'src> Compiler<'src> {
position,
);
self.previous_is_expression = true;
self.previous_expression_type = Type::Boolean;
Ok(())
} else {
@ -318,7 +405,7 @@ impl<'src> Compiler<'src> {
self.emit_constant(value, position)?;
self.previous_is_expression = true;
self.previous_expression_type = Type::Byte;
Ok(())
} else {
@ -340,7 +427,7 @@ impl<'src> Compiler<'src> {
self.emit_constant(value, position)?;
self.previous_is_expression = true;
self.previous_expression_type = Type::Character;
Ok(())
} else {
@ -368,7 +455,7 @@ impl<'src> Compiler<'src> {
self.emit_constant(value, position)?;
self.previous_is_expression = true;
self.previous_expression_type = Type::Float;
Ok(())
} else {
@ -396,7 +483,7 @@ impl<'src> Compiler<'src> {
self.emit_constant(value, position)?;
self.previous_is_expression = true;
self.previous_expression_type = Type::Integer;
Ok(())
} else {
@ -418,7 +505,9 @@ impl<'src> Compiler<'src> {
self.emit_constant(value, position)?;
self.previous_is_expression = true;
self.previous_expression_type = Type::String {
length: Some(text.len()),
};
Ok(())
} else {
@ -435,8 +524,6 @@ impl<'src> Compiler<'src> {
self.parse_expression()?;
self.expect(Token::RightParenthesis)?;
self.previous_is_expression = true;
Ok(())
}
@ -486,7 +573,9 @@ impl<'src> Compiler<'src> {
self.emit_instruction(instruction, operator_position);
self.previous_is_expression = true;
if let TokenKind::Bang = operator.kind() {
self.previous_expression_type = Type::Boolean;
}
Ok(())
}
@ -640,17 +729,17 @@ impl<'src> Compiler<'src> {
| Token::SlashEqual
| Token::PercentEqual = operator
{
self.previous_is_expression = false;
self.previous_expression_type = Type::None;
} else {
self.previous_is_expression = true;
self.previous_expression_type = self.get_instruction_type(&left_instruction)?;
}
Ok(())
}
fn parse_comparison_binary(&mut self) -> Result<(), CompileError> {
if let Some(Operation::Equal | Operation::Less | Operation::LessEqual) =
self.get_last_value_operation()
if let Some([Operation::Equal | Operation::Less | Operation::LessEqual, _, _, _]) =
self.get_last_operations()
{
return Err(CompileError::CannotChainComparison {
position: self.current_position,
@ -726,7 +815,6 @@ impl<'src> Compiler<'src> {
let register = self.next_register();
self.emit_instruction(instruction, operator_position);
self.emit_instruction(Instruction::jump(1, true), operator_position);
self.emit_instruction(
Instruction::load_boolean(register, true, true),
@ -737,7 +825,7 @@ impl<'src> Compiler<'src> {
operator_position,
);
self.previous_is_expression = true;
self.previous_expression_type = Type::Boolean;
Ok(())
}
@ -770,7 +858,7 @@ impl<'src> Compiler<'src> {
self.emit_instruction(Instruction::jump(jump_distance, true), operator_position);
self.parse_sub_expression(&rule.precedence)?;
self.previous_is_expression = true;
self.previous_expression_type = Type::Boolean;
Ok(())
}
@ -797,9 +885,9 @@ impl<'src> Compiler<'src> {
let scope = self.chunk.current_scope();
self.emit_instruction(Instruction::load_self(register), start_position);
self.declare_local(identifier, None, false, scope, register);
self.declare_local(identifier, Type::SelfChunk, false, scope, register);
self.previous_is_expression = true;
self.previous_expression_type = Type::SelfChunk;
return Ok(());
} else {
@ -842,18 +930,29 @@ impl<'src> Compiler<'src> {
start_position,
);
self.previous_is_expression = false;
} else {
let register = self.next_register();
self.previous_expression_type = Type::None;
self.emit_instruction(
Instruction::get_local(register, local_index),
self.previous_position,
);
let mut optimizer = Optimizer::new(self.chunk.instructions_mut());
let optimized = Optimizer::optimize_set_local(&mut optimizer);
self.previous_is_expression = true;
if optimized {
self.optimization_count += 1;
}
return Ok(());
}
let register = self.next_register();
self.emit_instruction(
Instruction::get_local(register, local_index),
self.previous_position,
);
let local = self.get_local(local_index)?;
self.previous_expression_type = local.r#type.clone();
Ok(())
}
@ -895,12 +994,23 @@ impl<'src> Compiler<'src> {
self.advance()?;
let start_register = self.next_register();
let mut item_type = Type::Any;
while !self.allow(Token::RightBracket)? && !self.is_eof() {
let expected_register = self.next_register();
self.parse_expression()?;
if expected_register > start_register {
if let Err(conflict) = item_type.check(&self.previous_expression_type) {
return Err(CompileError::ListItemTypeConflict {
conflict,
position: self.previous_position,
});
}
}
item_type = self.previous_expression_type.clone();
let actual_register = self.next_register() - 1;
if expected_register < actual_register {
@ -921,7 +1031,10 @@ impl<'src> Compiler<'src> {
Span(start, end),
);
self.previous_is_expression = true;
self.previous_expression_type = Type::List {
item_type: Box::new(item_type),
length: (to_register - start_register) as usize,
};
Ok(())
}
@ -931,12 +1044,12 @@ impl<'src> Compiler<'src> {
self.parse_expression()?;
if matches!(
self.get_last_instructions(),
self.get_last_operations(),
Some([
Operation::LoadBoolean,
Operation::LoadBoolean,
Operation::Equal | Operation::Less | Operation::LessEqual,
Operation::Jump,
Operation::Equal | Operation::Less | Operation::LessEqual
Operation::LoadBoolean,
Operation::LoadBoolean,
])
) {
self.chunk.instructions_mut().pop();
@ -959,24 +1072,10 @@ impl<'src> Compiler<'src> {
let if_block_end = self.chunk.len();
let mut if_block_distance = (if_block_end - if_block_start) as u8;
let if_block_is_expression = self
.chunk
.instructions()
.iter()
.rev()
.find_map(|(instruction, _)| {
if !matches!(instruction.operation(), Operation::Jump | Operation::Move) {
Some(instruction.yields_value())
} else {
None
}
})
.unwrap_or(false);
let if_block_type = self.previous_expression_type.clone();
let if_last_register = self.next_register().saturating_sub(1);
if let Token::Else = self.current_token {
let has_else_statement = if let Token::Else = self.current_token {
self.advance()?;
if let Token::LeftBrace = self.current_token {
@ -988,18 +1087,29 @@ impl<'src> Compiler<'src> {
position: self.current_position,
});
}
} else {
self.previous_is_expression = false;
}
self.previous_is_expression = if_block_is_expression && self.previous_is_expression;
true
} else if self.previous_expression_type != Type::None {
return Err(CompileError::IfMissingElse {
position: Span(if_block_start_position.0, self.current_position.1),
});
} else {
false
};
let else_block_end = self.chunk.len();
let else_block_distance = (else_block_end - if_block_end) as u8;
if let Err(conflict) = if_block_type.check(&self.previous_expression_type) {
return Err(CompileError::IfElseBranchMismatch {
conflict,
position: Span(if_block_start_position.0, self.current_position.1),
});
}
match else_block_distance {
0 => {}
1 => {
1 if !has_else_statement => {
if let Some(skippable) = self.get_last_jumpable_mut() {
skippable.set_c_to_boolean(true);
} else {
@ -1014,6 +1124,7 @@ impl<'src> Compiler<'src> {
);
}
}
1 => {}
2.. => {
if_block_distance += 1;
@ -1036,13 +1147,12 @@ impl<'src> Compiler<'src> {
);
if self.chunk.len() >= 4 {
let possible_comparison_statement = {
let start = self.chunk.len() - 4;
let mut optimizer = Optimizer::new(self.chunk.instructions_mut());
let optimized = optimizer.optimize_comparison();
&mut self.chunk.instructions_mut()[start..]
};
self.optimization_count += optimize(possible_comparison_statement);
if optimized {
self.optimization_count += 1
}
}
let else_last_register = self.next_register().saturating_sub(1);
@ -1065,12 +1175,12 @@ impl<'src> Compiler<'src> {
self.parse_expression()?;
if matches!(
self.get_last_instructions(),
self.get_last_operations(),
Some([
Operation::LoadBoolean,
Operation::LoadBoolean,
Operation::Equal | Operation::Less | Operation::LessEqual,
Operation::Jump,
Operation::Equal | Operation::Less | Operation::LessEqual
Operation::LoadBoolean,
Operation::LoadBoolean,
],)
) {
self.chunk.instructions_mut().pop();
@ -1097,7 +1207,7 @@ impl<'src> Compiler<'src> {
self.emit_instruction(jump_back, self.current_position);
self.previous_is_expression = false;
self.previous_expression_type = Type::None;
Ok(())
}
@ -1128,7 +1238,8 @@ impl<'src> Compiler<'src> {
let end = self.previous_position.1;
let to_register = self.next_register();
let argument_count = to_register - start_register;
self.previous_is_expression = function.r#type().return_type.is_some();
self.previous_expression_type = Type::Function(function.r#type());
self.emit_instruction(
Instruction::call_native(to_register, function, argument_count),
@ -1154,7 +1265,7 @@ impl<'src> Compiler<'src> {
fn parse_expression(&mut self) -> Result<(), CompileError> {
self.parse(Precedence::None)?;
if !self.previous_is_expression || self.chunk.is_empty() {
if self.previous_expression_type == Type::None || self.chunk.is_empty() {
return Err(CompileError::ExpectedExpression {
found: self.previous_token.to_owned(),
position: self.current_position,
@ -1185,7 +1296,7 @@ impl<'src> Compiler<'src> {
self.emit_instruction(Instruction::r#return(has_return_value), Span(start, end));
self.previous_is_expression = false;
self.previous_expression_type = Type::None;
Ok(())
}
@ -1195,7 +1306,7 @@ impl<'src> Compiler<'src> {
self.emit_instruction(Instruction::r#return(false), self.current_position);
} else {
self.emit_instruction(
Instruction::r#return(self.previous_is_expression),
Instruction::r#return(self.previous_expression_type != Type::None),
self.current_position,
);
}
@ -1220,11 +1331,11 @@ impl<'src> Compiler<'src> {
position,
});
};
let r#type = if self.allow(Token::Colon)? {
let r#type = self.parse_type_from(self.current_token, self.current_position)?;
let explicit_type = if self.allow(Token::Colon)? {
self.advance()?;
let r#type = self.parse_type_from(self.current_token, self.current_position)?;
Some(r#type)
} else {
None
@ -1233,7 +1344,12 @@ impl<'src> Compiler<'src> {
self.expect(Token::Equal)?;
self.parse_expression()?;
let register = self.next_register().saturating_sub(1);
let register = self.next_register() - 1;
let r#type = if let Some(r#type) = explicit_type {
r#type
} else {
self.get_register_type(register)?
};
let (local_index, _) = self.declare_local(identifier, r#type, is_mutable, scope, register);
self.emit_instruction(
@ -1241,7 +1357,7 @@ impl<'src> Compiler<'src> {
position,
);
self.previous_is_expression = false;
self.previous_expression_type = Type::None;
Ok(())
}
@ -1292,7 +1408,7 @@ impl<'src> Compiler<'src> {
let scope = function_compiler.chunk.current_scope();
let (_, identifier_index) = function_compiler.declare_local(
parameter,
Some(r#type.clone()),
r#type.clone(),
is_mutable,
scope,
register,
@ -1319,9 +1435,9 @@ impl<'src> Compiler<'src> {
function_compiler.advance()?;
Some(Box::new(r#type))
Box::new(r#type)
} else {
None
Box::new(Type::None)
};
function_compiler.expect(Token::LeftBrace)?;
@ -1347,7 +1463,7 @@ impl<'src> Compiler<'src> {
let scope = self.chunk.current_scope();
let (local_index, _) = self.declare_local(
identifier,
Some(Type::Function(function_type)),
Type::Function(function_type),
false,
scope,
register,
@ -1359,11 +1475,11 @@ impl<'src> Compiler<'src> {
identifier_position,
);
self.previous_is_expression = false;
self.previous_expression_type = Type::None;
} else {
self.emit_constant(function, Span(function_start, function_end))?;
self.previous_is_expression = true;
self.previous_expression_type = Type::Function(function_type);
}
Ok(())
@ -1387,6 +1503,15 @@ impl<'src> Compiler<'src> {
}
let function_register = last_instruction.a();
let function_return_type =
if let Type::Function(function_type) = self.get_register_type(function_register)? {
*function_type.return_type
} else {
return Err(CompileError::ExpectedFunction {
found: self.previous_token.to_owned(),
position: self.previous_position,
});
};
let start = self.current_position.0;
self.advance()?;
@ -1417,7 +1542,7 @@ impl<'src> Compiler<'src> {
Span(start, end),
);
self.previous_is_expression = true;
self.previous_expression_type = function_return_type;
Ok(())
}
@ -1425,7 +1550,7 @@ impl<'src> Compiler<'src> {
fn parse_semicolon(&mut self) -> Result<(), CompileError> {
self.advance()?;
self.previous_is_expression = false;
self.previous_expression_type = Type::None;
Ok(())
}
@ -1817,6 +1942,10 @@ pub enum CompileError {
found: TokenOwned,
position: Span,
},
ExpectedFunction {
found: TokenOwned,
position: Span,
},
InvalidAssignmentTarget {
found: TokenOwned,
position: Span,
@ -1845,6 +1974,27 @@ pub enum CompileError {
position: Span,
},
// Type errors
CannotResolveRegisterType {
register_index: usize,
position: Span,
},
CannotResolveVariableType {
identifier: String,
position: Span,
},
IfElseBranchMismatch {
conflict: TypeConflict,
position: Span,
},
IfMissingElse {
position: Span,
},
ListItemTypeConflict {
conflict: TypeConflict,
position: Span,
},
// Wrappers around foreign errors
Chunk {
error: ChunkError,
@ -1868,15 +2018,21 @@ impl AnnotatedError for CompileError {
fn description(&self) -> &'static str {
match self {
Self::CannotChainComparison { .. } => "Cannot chain comparison",
Self::CannotChainComparison { .. } => "Cannot chain comparison operations",
Self::CannotMutateImmutableVariable { .. } => "Cannot mutate immutable variable",
Self::CannotResolveRegisterType { .. } => "Cannot resolve register type",
Self::CannotResolveVariableType { .. } => "Cannot resolve type",
Self::Chunk { .. } => "Chunk error",
Self::ExpectedExpression { .. } => "Expected an expression",
Self::ExpectedFunction { .. } => "Expected a function",
Self::ExpectedMutableVariable { .. } => "Expected a mutable variable",
Self::ExpectedToken { .. } => "Expected a specific token",
Self::ExpectedTokenMultiple { .. } => "Expected one of multiple tokens",
Self::IfElseBranchMismatch { .. } => "Type mismatch in if/else branches",
Self::IfMissingElse { .. } => "If statement missing else branch",
Self::InvalidAssignmentTarget { .. } => "Invalid assignment target",
Self::Lex(error) => error.description(),
Self::ListItemTypeConflict { .. } => "List item type conflict",
Self::ParseFloatError { .. } => "Failed to parse float",
Self::ParseIntError { .. } => "Failed to parse integer",
Self::UndeclaredVariable { .. } => "Undeclared variable",
@ -1887,14 +2043,14 @@ impl AnnotatedError for CompileError {
fn details(&self) -> Option<String> {
match self {
Self::CannotChainComparison { .. } => {
Some("Cannot chain comparison operations".to_string())
}
Self::CannotMutateImmutableVariable { identifier, .. } => {
Some(format!("Cannot mutate immutable variable {identifier}"))
Some(format!("{identifier} is immutable"))
}
Self::Chunk { error, .. } => Some(error.to_string()),
Self::ExpectedExpression { found, .. } => Some(format!("Found {found}")),
Self::ExpectedFunction { found, .. } => {
Some(format!("Expected \"{found}\" to be a function"))
}
Self::ExpectedToken {
expected, found, ..
} => Some(format!("Expected {expected} but found {found}")),
@ -1919,23 +2075,31 @@ impl AnnotatedError for CompileError {
Some(details)
}
Self::ExpectedMutableVariable { found, .. } => {
Some(format!("Expected mutable variable, found {found}"))
}
Self::ExpectedMutableVariable { found, .. } => Some(format!("Found {found}")),
Self::IfElseBranchMismatch {
conflict: TypeConflict { expected, actual },
..
} => Some(
format!("This if block evaluates to type \"{expected}\" but the else block evaluates to \"{actual}\"")
),
Self::IfMissingElse { .. } => Some(
"This \"if\" expression evaluates to a value but is missing an else block"
.to_string(),
),
Self::InvalidAssignmentTarget { found, .. } => {
Some(format!("Invalid assignment target, found {found}"))
Some(format!("Cannot assign to {found}"))
}
Self::Lex(error) => error.details(),
Self::ParseFloatError { error, .. } => Some(error.to_string()),
Self::ParseIntError { error, .. } => Some(error.to_string()),
Self::UndeclaredVariable { identifier, .. } => {
Some(format!("Undeclared variable {identifier}"))
Some(format!("{identifier} has not been declared"))
}
Self::UnexpectedReturn { .. } => None,
Self::VariableOutOfScope { identifier, .. } => {
Some(format!("Variable {identifier} is out of scope"))
Some(format!("{identifier} is out of scope"))
}
_ => None,
}
}
@ -1943,13 +2107,19 @@ impl AnnotatedError for CompileError {
match self {
Self::CannotChainComparison { position } => *position,
Self::CannotMutateImmutableVariable { position, .. } => *position,
Self::CannotResolveRegisterType { position, .. } => *position,
Self::CannotResolveVariableType { position, .. } => *position,
Self::Chunk { position, .. } => *position,
Self::ExpectedExpression { position, .. } => *position,
Self::ExpectedFunction { position, .. } => *position,
Self::ExpectedMutableVariable { position, .. } => *position,
Self::ExpectedToken { position, .. } => *position,
Self::ExpectedTokenMultiple { position, .. } => *position,
Self::IfElseBranchMismatch { position, .. } => *position,
Self::IfMissingElse { position } => *position,
Self::InvalidAssignmentTarget { position, .. } => *position,
Self::Lex(error) => error.position(),
Self::ListItemTypeConflict { position, .. } => *position,
Self::ParseFloatError { position, .. } => *position,
Self::ParseIntError { position, .. } => *position,
Self::UndeclaredVariable { position, .. } => *position,

50
dust-lang/src/disassembler.rs
View File

@ -64,8 +64,8 @@ const CONSTANT_HEADER: [&str; 4] = [
const LOCAL_HEADER: [&str; 4] = [
"Locals",
"------",
" i IDENTIFIER TYPE MUTABLE SCOPE REGISTER",
"--- ---------- ---------------- ------- ------- --------",
" i IDENTIFIER TYPE MUTABLE SCOPE ",
"--- ---------- ---------------- ------- -------",
];
/// Builder that constructs a human-readable representation of a chunk.
@ -222,7 +222,16 @@ impl<'a> Disassembler<'a> {
.map(|identifier| identifier.to_string())
.unwrap_or_else(|| {
current_exe()
.map(|path| path.to_string_lossy().to_string())
.map(|path| {
let path_string = path.to_string_lossy();
let file_name = path_string
.split('/')
.last()
.map(|slice| slice.to_string())
.unwrap_or(path_string.to_string());
file_name
})
.unwrap_or("Chunk Disassembly".to_string())
});
@ -245,10 +254,7 @@ impl<'a> Disassembler<'a> {
self.chunk.len(),
self.chunk.constants().len(),
self.chunk.locals().len(),
self.chunk
.return_type()
.map(|r#type| r#type.to_string())
.unwrap_or("none".to_string())
self.chunk.return_type()
);
self.push(&info_line, true, false, true, true);
@ -262,23 +268,10 @@ impl<'a> Disassembler<'a> {
let bytecode = format!("{:02X}", u32::from(instruction));
let operation = instruction.operation().to_string();
let info = instruction.disassembly_info(self.chunk);
let type_display = instruction
.yielded_type(self.chunk)
.map(|r#type| {
let type_string = r#type.to_string();
if type_string.len() > 16 {
format!("{type_string:.13}...")
} else {
type_string
}
})
.unwrap_or(String::with_capacity(0));
let position = position.to_string();
let instruction_display = format!(
"{index:^3} {bytecode:>8} {operation:13} {info:^20} {type_display:^16} {position:10}"
);
let instruction_display =
format!("{index:^3} {bytecode:>8} {operation:13} {info:^20} {position:10}");
self.push_details(&instruction_display);
}
@ -305,18 +298,7 @@ impl<'a> Disassembler<'a> {
.get(*identifier_index as usize)
.map(|value| value.to_string())
.unwrap_or_else(|| "unknown".to_string());
let type_display = r#type
.as_ref()
.map(|r#type| {
let type_string = r#type.to_string();
if type_string.len() > 16 {
format!("{type_string:.13}...")
} else {
type_string
}
})
.unwrap_or("unknown".to_string());
let type_display = r#type.to_string();
let local_display = format!(
"{index:^3} {identifier_display:10} {type_display:16} {mutable:7} {scope:7}"
);

47
dust-lang/src/instruction.rs
View File

@ -362,6 +362,18 @@ impl Instruction {
self
}
pub fn returns_or_panics(&self) -> bool {
match self.operation() {
Operation::Return => true,
Operation::CallNative => {
let native_function = NativeFunction::from(self.b());
matches!(native_function, NativeFunction::Panic)
}
_ => false,
}
}
pub fn yields_value(&self) -> bool {
match self.operation() {
Operation::Add
@ -380,43 +392,12 @@ impl Instruction {
Operation::CallNative => {
let native_function = NativeFunction::from(self.b());
native_function.r#type().return_type.is_some()
*native_function.r#type().return_type != Type::None
}
_ => false,
}
}
pub fn yielded_type(&self, chunk: &Chunk) -> Option<Type> {
use Operation::*;
match self.operation() {
Add | Divide | Modulo | Multiply | Subtract => {
if self.b_is_constant() {
chunk.get_constant_type(self.b())
} else {
chunk.get_register_type(self.b())
}
}
LoadBoolean | Not => Some(Type::Boolean),
Negate => {
if self.b_is_constant() {
chunk.get_constant_type(self.b())
} else {
chunk.get_register_type(self.b())
}
}
LoadConstant => chunk.get_constant_type(self.b()),
LoadList => chunk.get_register_type(self.a()),
GetLocal => chunk.get_local_type(self.b()),
CallNative => {
let native_function = NativeFunction::from(self.b());
native_function.r#type().return_type.map(|boxed| *boxed)
}
_ => None,
}
}
pub fn disassembly_info(&self, chunk: &Chunk) -> String {
let format_arguments = || {
let first_argument = if self.b_is_constant() {
@ -629,7 +610,7 @@ impl Instruction {
let mut output = String::new();
let native_function_name = native_function.as_str();
if native_function.r#type().return_type.is_some() {
if *native_function.r#type().return_type != Type::None {
output.push_str(&format!("R{} = {}(", to_register, native_function_name));
} else {
output.push_str(&format!("{}(", native_function_name));

2
dust-lang/src/lib.rs
View File

@ -24,7 +24,7 @@ pub use crate::instruction::Instruction;
pub use crate::lexer::{lex, LexError, Lexer};
pub use crate::native_function::{NativeFunction, NativeFunctionError};
pub use crate::operation::Operation;
pub use crate::optimizer::{optimize, Optimizer};
pub use crate::optimizer::Optimizer;
pub use crate::r#type::{EnumType, FunctionType, RangeableType, StructType, Type, TypeConflict};
pub use crate::token::{output_token_list, Token, TokenKind, TokenOwned};
pub use crate::value::{ConcreteValue, Function, Value, ValueError};

14
dust-lang/src/native_function.rs
View File

@ -56,7 +56,7 @@ macro_rules! define_native_function {
pub fn returns_value(&self) -> bool {
match self {
$(
NativeFunction::$name => $type.return_type.is_some(),
NativeFunction::$name => *$type.return_type != Type::None,
)*
}
}
@ -100,7 +100,7 @@ define_native_function! {
FunctionType {
type_parameters: None,
value_parameters: None,
return_type: None
return_type: Box::new(Type::None)
}
),
// (AssertEqual, 1_u8, "assert_equal", false),
@ -112,7 +112,7 @@ define_native_function! {
FunctionType {
type_parameters: None,
value_parameters: None,
return_type: Some(Box::new(Type::Any))
return_type: Box::new(Type::None)
}
),
@ -128,7 +128,7 @@ define_native_function! {
FunctionType {
type_parameters: None,
value_parameters: Some(vec![(0, Type::Any)]),
return_type: Some(Box::new(Type::String { length: None }))
return_type: Box::new(Type::String { length: None })
}
),
@ -188,7 +188,7 @@ define_native_function! {
FunctionType {
type_parameters: None,
value_parameters: None,
return_type: Some(Box::new(Type::String { length: None }))
return_type: Box::new(Type::String { length: None })
}
),
// (ReadTo, 51_u8, "read_to", false),
@ -203,7 +203,7 @@ define_native_function! {
FunctionType {
type_parameters: None,
value_parameters: Some(vec![(0, Type::String { length: None })]),
return_type: None
return_type: Box::new(Type::None)
}
),
// (WriteFile, 56_u8, "write_file", false),
@ -214,7 +214,7 @@ define_native_function! {
FunctionType {
type_parameters: None,
value_parameters: Some(vec![(0, Type::String { length: None })]),
return_type: None
return_type: Box::new(Type::None)
}
)

95
dust-lang/src/optimizer.rs
View File

@ -1,34 +1,41 @@
//! Tools used by the compiler to optimize a chunk's bytecode.
use std::{iter::Map, slice::Iter};
//! Tool used by the compiler to optimize a chunk's bytecode.
use crate::{Instruction, Operation, Span};
type MapToOperation = fn(&(Instruction, Span)) -> Operation;
type OperationIter<'iter> = Map<Iter<'iter, (Instruction, Span)>, MapToOperation>;
/// Performs optimizations on a subset of instructions.
pub fn optimize(instructions: &mut [(Instruction, Span)]) -> usize {
Optimizer::new(instructions).optimize()
}
/// An instruction optimizer that mutably borrows instructions from a chunk.
#[derive(Debug, Eq, PartialEq, PartialOrd, Ord)]
pub struct Optimizer<'chunk> {
instructions: &'chunk mut [(Instruction, Span)],
pub struct Optimizer<'a> {
instructions: &'a mut Vec<(Instruction, Span)>,
}
impl<'chunk> Optimizer<'chunk> {
impl<'a> Optimizer<'a> {
/// Creates a new optimizer with a mutable reference to some of a chunk's instructions.
pub fn new(instructions: &'chunk mut [(Instruction, Span)]) -> Self {
pub fn new(instructions: &'a mut Vec<(Instruction, Span)>) -> Self {
Self { instructions }
}
/// Potentially mutates the instructions to optimize them.
pub fn optimize(&mut self) -> usize {
let mut optimizations = 0;
if matches!(
/// Optimizes a comparison operation.
///
/// Comparison instructions (which are always followed by a JUMP) can be optimized when the
/// next instructions are two constant or boolean loaders. The first loader is set to skip an
/// instruction if it is run while the second loader is modified to use the first's register.
/// This makes the following two code snippets compile to the same bytecode:
///
/// ```dust
/// 4 == 4
/// ```
///
/// ```dust
/// if 4 == 4 { true } else { false }
/// ```
///
/// The instructions must be in the following order:
/// - `Operation::Equal | Operation::Less | Operation::LessEqual`
/// - `Operation::Jump`
/// - `Operation::LoadBoolean | Operation::LoadConstant`
/// - `Operation::LoadBoolean | Operation::LoadConstant`
pub fn optimize_comparison(&mut self) -> bool {
if !matches!(
self.get_operations(),
Some([
Operation::Equal | Operation::Less | Operation::LessEqual,
@ -37,22 +44,9 @@ impl<'chunk> Optimizer<'chunk> {
Operation::LoadBoolean | Operation::LoadConstant,
])
) {
self.optimize_comparison();
optimizations += 1;
return false;
}
optimizations
}
/// Optimizes a comparison operation.
///
/// The instructions must be in the following order:
/// - `Operation::Equal | Operation::Less | Operation::LessEqual`
/// - `Operation::Jump`
/// - `Operation::LoadBoolean | Operation::LoadConstant`
/// - `Operation::LoadBoolean | Operation::LoadConstant`
fn optimize_comparison(&mut self) {
log::debug!("Optimizing comparison");
let first_loader_register = {
@ -72,12 +66,30 @@ impl<'chunk> Optimizer<'chunk> {
second_loader_new.set_c_to_boolean(second_loader.c_is_constant());
*second_loader = second_loader_new;
true
}
fn operations_iter(&self) -> OperationIter {
self.instructions
.iter()
.map(|(instruction, _)| instruction.operation())
pub fn optimize_set_local(&mut self) -> bool {
if !matches!(
self.get_operations(),
Some([
Operation::Add
| Operation::Subtract
| Operation::Multiply
| Operation::Divide
| Operation::Modulo,
Operation::SetLocal,
])
) {
return false;
}
log::debug!("Optimizing set local");
self.instructions.pop();
true
}
fn get_operations<const COUNT: usize>(&self) -> Option<[Operation; COUNT]> {
@ -87,7 +99,12 @@ impl<'chunk> Optimizer<'chunk> {
let mut n_operations = [Operation::Return; COUNT];
for (nth, operation) in n_operations.iter_mut().zip(self.operations_iter()) {
for (nth, operation) in n_operations.iter_mut().rev().zip(
self.instructions
.iter()
.rev()
.map(|(instruction, _)| instruction.operation()),
) {
*nth = operation;
}

14
dust-lang/src/type.rs
View File

@ -33,10 +33,12 @@ pub enum Type {
Map {
pairs: HashMap<u8, Type>,
},
None,
Number,
Range {
r#type: RangeableType,
},
SelfChunk,
String {
length: Option<usize>,
},
@ -257,8 +259,10 @@ impl Display for Type {
write!(f, "}}")
}
Type::None => write!(f, "none"),
Type::Number => write!(f, "num"),
Type::Range { r#type } => write!(f, "{type} range"),
Type::SelfChunk => write!(f, "self"),
Type::String { .. } => write!(f, "str"),
Type::Struct(struct_type) => write!(f, "{struct_type}"),
Type::Tuple { fields } => {
@ -343,12 +347,16 @@ impl Ord for Type {
left_pairs.iter().cmp(right_pairs.iter())
}
(Type::Map { .. }, _) => Ordering::Greater,
(Type::None, Type::None) => Ordering::Equal,
(Type::None, _) => Ordering::Greater,
(Type::Number, Type::Number) => Ordering::Equal,
(Type::Number, _) => Ordering::Greater,
(Type::Range { r#type: left_type }, Type::Range { r#type: right_type }) => {
left_type.cmp(right_type)
}
(Type::Range { .. }, _) => Ordering::Greater,
(Type::SelfChunk, Type::SelfChunk) => Ordering::Equal,
(Type::SelfChunk, _) => Ordering::Greater,
(Type::String { length: left }, Type::String { length: right }) => left.cmp(right),
(Type::String { .. }, _) => Ordering::Greater,
(Type::Struct(left_struct), Type::Struct(right_struct)) => {
@ -366,7 +374,7 @@ impl Ord for Type {
pub struct FunctionType {
pub type_parameters: Option<Vec<u8>>,
pub value_parameters: Option<Vec<(u8, Type)>>,
pub return_type: Option<Box<Type>>,
pub return_type: Box<Type>,
}
impl Display for FunctionType {
@ -401,8 +409,8 @@ impl Display for FunctionType {
write!(f, ")")?;
if let Some(return_type) = &self.return_type {
write!(f, " -> {return_type}")?;
if *self.return_type != Type::None {
write!(f, " -> {}", self.return_type)?;
}
Ok(())

11
dust-lang/src/vm.rs
View File

@ -7,8 +7,7 @@ use std::{
use crate::{
compile, value::ConcreteValue, AnnotatedError, Chunk, ChunkError, DustError, FunctionType,
Instruction, Local, NativeFunction, NativeFunctionError, Operation, Span, Type, Value,
ValueError,
Instruction, NativeFunction, NativeFunctionError, Operation, Span, Type, Value, ValueError,
};
pub fn run(source: &str) -> Result<Option<Value>, DustError> {
@ -164,7 +163,7 @@ impl<'chunk, 'parent> Vm<'chunk, 'parent> {
FunctionType {
type_parameters: None,
value_parameters: None,
return_type: None,
return_type: Box::new(Type::None),
},
);
@ -595,12 +594,6 @@ impl<'chunk, 'parent> Vm<'chunk, 'parent> {
Ok(())
}
fn get_local(&self, local_index: u8, position: Span) -> Result<&Local, VmError> {
self.chunk
.get_local(local_index)
.map_err(|error| VmError::Chunk { error, position })
}
fn get_instruction(
&self,
index: usize,

51
dust-lang/tests/control_flow.rs
View File

@ -23,15 +23,7 @@ fn equality_assignment_long() {
(Instruction::r#return(true), Span(44, 44)),
],
vec![Value::integer(4), Value::string("a")],
vec![Local::new(
1,
None,
false,
Scope {
depth: 0,
block_index: 0
},
)]
vec![Local::new(1, Type::Boolean, false, Scope::default(),)]
)),
);
@ -61,7 +53,7 @@ fn equality_assignment_short() {
(Instruction::r#return(true), Span(16, 16)),
],
vec![Value::integer(4), Value::string("a")],
vec![Local::new(1, None, false, Scope::default())]
vec![Local::new(1, Type::Boolean, false, Scope::default())]
)),
);
@ -119,7 +111,7 @@ fn if_else_assigment_false() {
Value::integer(42),
Value::string("a")
],
vec![Local::new(5, None, false, Scope::default())]
vec![Local::new(5, Type::Integer, false, Scope::default())]
)),
);
@ -177,7 +169,7 @@ fn if_else_assigment_true() {
Value::integer(42),
Value::string("a")
],
vec![Local::new(5, None, false, Scope::default())]
vec![Local::new(5, Type::Integer, false, Scope::default())]
)),
);
@ -302,7 +294,7 @@ fn if_else_complex() {
#[test]
fn if_else_false() {
let source = "if 1 == 2 { panic() } else { 42 }";
let source = "if 1 == 2 { panic(); 0 } else { 42 }";
assert_eq!(
compile(source),
@ -334,7 +326,7 @@ fn if_else_false() {
#[test]
fn if_else_true() {
let source = "if 1 == 1 { 42 } else { panic() }";
let source = "if 1 == 1 { 42 } else { panic(); 0 }";
assert_eq!(
compile(source),
@ -366,7 +358,7 @@ fn if_else_true() {
#[test]
fn if_false() {
let source = "if 1 == 2 { 2 }";
let source = "if 1 == 2 { panic() }";
assert_eq!(
compile(source),
@ -380,8 +372,11 @@ fn if_false() {
Span(5, 7)
),
(Instruction::jump(1, true), Span(10, 11)),
(Instruction::load_constant(0, 1, false), Span(12, 13)),
(Instruction::r#return(false), Span(15, 15))
(
Instruction::call_native(0, NativeFunction::Panic, 0),
Span(12, 19)
),
(Instruction::r#return(false), Span(21, 21))
],
vec![Value::integer(1), Value::integer(2)],
vec![]
@ -393,7 +388,7 @@ fn if_false() {
#[test]
fn if_true() {
let source = "if 1 == 1 { 2 }";
let source = "if 1 == 1 { panic() }";
assert_eq!(
compile(source),
@ -407,13 +402,25 @@ fn if_true() {
Span(5, 7)
),
(Instruction::jump(1, true), Span(10, 11)),
(Instruction::load_constant(0, 1, false), Span(12, 13)),
(Instruction::r#return(false), Span(15, 15))
(
Instruction::call_native(0, NativeFunction::Panic, 0),
Span(12, 19)
),
(Instruction::r#return(false), Span(21, 21))
],
vec![Value::integer(1), Value::integer(2)],
vec![Value::integer(1)],
vec![]
)),
);
assert_eq!(run(source), Ok(None));
assert_eq!(
run(source),
Err(DustError::Runtime {
error: VmError::NativeFunction(NativeFunctionError::Panic {
message: None,
position: Span(12, 19)
}),
source
})
);
}

24
dust-lang/tests/functions.rs
View File

@ -15,14 +15,14 @@ fn function() {
],
vec![Value::string("a"), Value::string("b"),],
vec![
Local::new(0, Some(Type::Integer), false, Scope::default()),
Local::new(1, Some(Type::Integer), false, Scope::default())
Local::new(0, Type::Integer, false, Scope::default()),
Local::new(1, Type::Integer, false, Scope::default())
]
),
FunctionType {
type_parameters: None,
value_parameters: Some(vec![(0, Type::Integer), (1, Type::Integer)]),
return_type: Some(Box::new(Type::Integer)),
return_type: Box::new(Type::Integer),
}
)))
);
@ -53,14 +53,14 @@ fn function_call() {
],
vec![Value::string("a"), Value::string("b"),],
vec![
Local::new(0, Some(Type::Integer), false, Scope::default()),
Local::new(1, Some(Type::Integer), false, Scope::default())
Local::new(0, Type::Integer, false, Scope::default()),
Local::new(1, Type::Integer, false, Scope::default())
]
),
FunctionType {
type_parameters: None,
value_parameters: Some(vec![(0, Type::Integer), (1, Type::Integer)]),
return_type: Some(Box::new(Type::Integer)),
return_type: Box::new(Type::Integer),
}
),
Value::integer(1),
@ -97,24 +97,24 @@ fn function_declaration() {
],
vec![Value::string("a"), Value::string("b")],
vec![
Local::new(0, Some(Type::Integer), false, Scope::default()),
Local::new(1, Some(Type::Integer), false, Scope::default())
Local::new(0, Type::Integer, false, Scope::default()),
Local::new(1, Type::Integer, false, Scope::default())
]
),
FunctionType {
type_parameters: None,
value_parameters: Some(vec![(0, Type::Integer), (1, Type::Integer)]),
return_type: Some(Box::new(Type::Integer)),
return_type: Box::new(Type::Integer),
},
)
],
vec![Local::new(
0,
Some(Type::Function(FunctionType {
Type::Function(FunctionType {
type_parameters: None,
value_parameters: Some(vec![(0, Type::Integer), (1, Type::Integer)]),
return_type: Some(Box::new(Type::Integer)),
})),
return_type: Box::new(Type::Integer),
}),
false,
Scope::default(),
)],

4
dust-lang/tests/logic.rs
View File

@ -67,8 +67,8 @@ fn variable_and() {
],
vec![Value::string("a"), Value::string("b"),],
vec![
Local::new(0, None, false, Scope::default()),
Local::new(1, None, false, Scope::default()),
Local::new(0, Type::Boolean, false, Scope::default()),
Local::new(1, Type::Boolean, false, Scope::default()),
]
))
);

4
dust-lang/tests/loops.rs
View File

@ -16,7 +16,7 @@ fn r#while() {
Span(23, 24)
),
(Instruction::jump(2, true), Span(41, 42)),
(*Instruction::add(0, 0, 3).set_c_is_constant(), Span(39, 40)),
(*Instruction::add(0, 0, 3).set_c_is_constant(), Span(35, 36)),
(Instruction::jump(3, false), Span(41, 42)),
(Instruction::get_local(1, 0), Span(41, 42)),
(Instruction::r#return(true), Span(42, 42)),
@ -27,7 +27,7 @@ fn r#while() {
Value::integer(5),
Value::integer(1),
],
vec![Local::new(1, None, true, Scope::default())]
vec![Local::new(1, Type::Integer, true, Scope::default())]
)),
);

8
dust-lang/tests/math.rs
View File

@ -41,7 +41,7 @@ fn add_assign() {
(Instruction::r#return(true), Span(24, 24))
],
vec![Value::integer(1), Value::string("a"), Value::integer(2)],
vec![Local::new(1, None, true, Scope::default())]
vec![Local::new(1, Type::Integer, true, Scope::default())]
))
);
@ -124,7 +124,7 @@ fn divide_assign() {
(Instruction::r#return(true), Span(24, 24))
],
vec![Value::integer(2), Value::string("a")],
vec![Local::new(1, None, true, Scope::default())]
vec![Local::new(1, Type::Integer, true, Scope::default())]
))
);
@ -233,7 +233,7 @@ fn multiply_assign() {
(Instruction::r#return(true), Span(23, 23))
],
vec![Value::integer(2), Value::string("a"), Value::integer(3)],
vec![Local::new(1, None, true, Scope::default())]
vec![Local::new(1, Type::Integer, true, Scope::default())]
))
);
@ -300,7 +300,7 @@ fn subtract_assign() {
(Instruction::r#return(true), Span(25, 25)),
],
vec![Value::integer(42), Value::string("x"), Value::integer(2)],
vec![Local::new(1, None, true, Scope::default())]
vec![Local::new(1, Type::Integer, true, Scope::default())]
)),
);

28
dust-lang/tests/scopes.rs
View File

@ -55,11 +55,11 @@ fn block_scope() {
Value::string("e"),
],
vec![
Local::new(1, None, false, Scope::new(0, 0)),
Local::new(3, None, false, Scope::new(1, 1)),
Local::new(5, None, false, Scope::new(2, 2)),
Local::new(7, None, false, Scope::new(1, 1)),
Local::new(8, None, false, Scope::new(0, 0)),
Local::new(1, Type::Integer, false, Scope::new(0, 0)),
Local::new(3, Type::Integer, false, Scope::new(1, 1)),
Local::new(5, Type::Integer, false, Scope::new(2, 2)),
Local::new(7, Type::Integer, false, Scope::new(1, 1)),
Local::new(8, Type::Integer, false, Scope::new(0, 0)),
]
)),
);
@ -127,15 +127,15 @@ fn multiple_block_scopes() {
Value::string("e"),
],
vec![
Local::new(1, None, false, Scope::new(0, 0)),
Local::new(3, None, false, Scope::new(1, 1)),
Local::new(5, None, false, Scope::new(2, 2)),
Local::new(7, None, false, Scope::new(1, 1)),
Local::new(8, None, false, Scope::new(0, 0)),
Local::new(3, None, false, Scope::new(1, 3)),
Local::new(5, None, false, Scope::new(2, 4)),
Local::new(7, None, false, Scope::new(1, 3)),
Local::new(9, None, false, Scope::new(0, 0)),
Local::new(1, Type::Integer, false, Scope::new(0, 0)),
Local::new(3, Type::Integer, false, Scope::new(1, 1)),
Local::new(5, Type::Integer, false, Scope::new(2, 2)),
Local::new(7, Type::Integer, false, Scope::new(1, 1)),
Local::new(8, Type::Integer, false, Scope::new(0, 0)),
Local::new(3, Type::Integer, false, Scope::new(1, 3)),
Local::new(5, Type::Integer, false, Scope::new(2, 4)),
Local::new(7, Type::Integer, false, Scope::new(1, 3)),
Local::new(9, Type::Integer, false, Scope::new(0, 0)),
]
)),
);

4
dust-lang/tests/variables.rs
View File

@ -14,7 +14,7 @@ fn define_local() {
(Instruction::r#return(false), Span(11, 11))
],
vec![Value::integer(42), Value::string("x")],
vec![Local::new(1, None, false, Scope::default())]
vec![Local::new(1, Type::Integer, false, Scope::default())]
)),
);
@ -55,7 +55,7 @@ fn set_local() {
(Instruction::r#return(true), Span(25, 25)),
],
vec![Value::integer(41), Value::string("x"), Value::integer(42)],
vec![Local::new(1, None, true, Scope::default())]
vec![Local::new(1, Type::Integer, true, Scope::default())]
)),
);