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Begin AbstractTree refactoring

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This commit is contained in:
Jeff 2024-06-21 20:59:38 -04:00
parent d98f724355
commit fb413e24b0
24 changed files with 491 additions and 387 deletions
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36
dust-lang/src/abstract_tree/as.rs
View File

@ -9,7 +9,7 @@ use crate::{
Value,
};
use super::{Evaluate, Evaluation, ExpectedType, Expression, Type, TypeConstructor, Validate};
use super::{AbstractNode, Evaluation, Expression, Type, TypeConstructor};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct As {
@ -26,35 +26,33 @@ impl As {
}
}
impl Validate for As {
fn validate(
&self,
_context: &mut Context,
_manage_memory: bool,
) -> Result<(), ValidationError> {
impl AbstractNode for As {
fn define_types(&self, context: &Context) -> Result<(), ValidationError> {
Ok(())
}
fn validate(&self, _context: &Context, _manage_memory: bool) -> Result<(), ValidationError> {
match self.constructor {
TypeConstructor::Raw(_) => {}
_ => todo!("Create an error for this occurence."),
};
match self.expression.expected_type(_context)? {
Type::Boolean | Type::Float | Type::Integer | Type::String => {}
Some(Type::Boolean) | Some(Type::Float) | Some(Type::Integer) | Some(Type::String) => {}
_ => todo!("Create an error for this occurence."),
};
Ok(())
}
}
impl Evaluate for As {
fn evaluate(
self,
context: &mut Context,
context: &Context,
_manage_memory: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
let expression_position = self.expression.position();
let action = self.expression.evaluate(context, _manage_memory)?;
let value = if let Evaluation::Return(value) = action {
let evaluation = self.expression.evaluate(context, _manage_memory)?;
let value = if let Some(Evaluation::Return(value)) = evaluation {
value
} else {
return Err(RuntimeError::ValidationFailure(
@ -70,12 +68,12 @@ impl Evaluate for As {
_ => todo!("Create an error for this occurence."),
};
Ok(Evaluation::Return(converted))
Ok(Some(Evaluation::Return(converted)))
}
}
impl ExpectedType for As {
fn expected_type(&self, context: &mut Context) -> Result<Type, ValidationError> {
self.constructor.clone().construct(&context)
fn expected_type(&self, context: &Context) -> Result<Option<Type>, ValidationError> {
self.constructor
.construct(&context)
.map(|r#type| Some(r#type))
}
}

48
dust-lang/src/abstract_tree/assignment.rs
View File

@ -9,8 +9,7 @@ use crate::{
use super::{
type_constructor::{RawTypeConstructor, TypeInvokationConstructor},
Evaluation, ExpectedType, Expression, Run, Statement, Type, TypeConstructor, Validate,
WithPosition,
AbstractNode, Evaluation, Expression, Statement, Type, TypeConstructor, WithPosition,
};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
@ -44,8 +43,37 @@ impl Assignment {
}
}
impl Validate for Assignment {
fn validate(&self, context: &mut Context, manage_memory: bool) -> Result<(), ValidationError> {
impl AbstractNode for Assignment {
fn define_types(&self, context: &Context) -> Result<(), ValidationError> {
let relevant_statement = self.statement.last_evaluated_statement();
let statement_type = relevant_statement.expected_type(context)?;
if let Type::Void = &statement_type {
return Err(ValidationError::CannotAssignToNone(
self.statement.position(),
));
}
if let Some(constructor) = &self.constructor {
let r#type = constructor.clone().construct(&context)?;
r#type
.check(&statement_type)
.map_err(|conflict| ValidationError::TypeCheck {
conflict,
actual_position: self.statement.position(),
expected_position: Some(constructor.position()),
})?;
context.set_type(self.identifier.node.clone(), r#type.clone())?;
} else {
context.set_type(self.identifier.node.clone(), statement_type.clone())?;
}
Ok(())
}
fn validate(&self, context: &Context, manage_memory: bool) -> Result<(), ValidationError> {
if let Some(TypeConstructor::Raw(WithPosition {
node: RawTypeConstructor::None,
position,
@ -54,7 +82,7 @@ impl Validate for Assignment {
return Err(ValidationError::CannotAssignToNone(position.clone()));
}
let relevant_statement = self.statement.last_child_statement();
let relevant_statement = self.statement.last_evaluated_statement();
let statement_type = relevant_statement.expected_type(context)?;
if let Type::Void = &statement_type {
@ -137,12 +165,10 @@ impl Validate for Assignment {
Ok(())
}
}
impl Run for Assignment {
fn run(
fn evaluate(
self,
context: &mut Context,
context: &Context,
manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
let evaluation = self.statement.run(context, manage_memory)?;
@ -249,4 +275,8 @@ impl Run for Assignment {
Ok(Some(Evaluation::Void))
}
fn expected_type(&self, context: &Context) -> Result<Option<Type>, ValidationError> {
Ok(None)
}
}

26
dust-lang/src/abstract_tree/async_block.rs
View File

@ -8,7 +8,7 @@ use crate::{
error::{RuntimeError, ValidationError},
};
use super::{Evaluation, ExpectedType, Run, Statement, Type, Validate};
use super::{AbstractNode, Evaluation, Statement, Type};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct AsyncBlock {
@ -21,20 +21,26 @@ impl AsyncBlock {
}
}
impl Validate for AsyncBlock {
fn validate(&self, _context: &mut Context, manage_memory: bool) -> Result<(), ValidationError> {
impl AbstractNode for AsyncBlock {
fn define_types(&self, _context: &Context) -> Result<(), ValidationError> {
for statement in &self.statements {
statement.define_types(_context)?;
}
Ok(())
}
fn validate(&self, _context: &Context, manage_memory: bool) -> Result<(), ValidationError> {
for statement in &self.statements {
statement.validate(_context, manage_memory)?;
}
Ok(())
}
}
impl Run for AsyncBlock {
fn run(
fn evaluate(
self,
_context: &mut Context,
_context: &Context,
_manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
let statement_count = self.statements.len();
@ -61,10 +67,8 @@ impl Run for AsyncBlock {
)
.unwrap_or(final_result.into_inner()?)
}
}
impl ExpectedType for AsyncBlock {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
self.statements.first().unwrap().expected_type(_context)
fn expected_type(&self, _context: &Context) -> Result<Option<Type>, ValidationError> {
self.statements.last().unwrap().expected_type(_context)
}
}

28
dust-lang/src/abstract_tree/block.rs
View File

@ -5,7 +5,7 @@ use crate::{
error::{RuntimeError, ValidationError},
};
use super::{Evaluation, ExpectedType, Run, Statement, Type, Validate};
use super::{AbstractNode, Evaluation, Statement, Type};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct Block {
@ -26,24 +26,26 @@ impl Block {
}
}
impl Validate for Block {
fn validate(
&self,
_context: &mut Context,
_manage_memory: bool,
) -> Result<(), ValidationError> {
impl AbstractNode for Block {
fn define_types(&self, _context: &Context) -> Result<(), ValidationError> {
for statement in &self.statements {
statement.define_types(_context)?;
}
Ok(())
}
fn validate(&self, _context: &Context, _manage_memory: bool) -> Result<(), ValidationError> {
for statement in &self.statements {
statement.validate(_context, _manage_memory)?;
}
Ok(())
}
}
impl Run for Block {
fn run(
fn evaluate(
self,
_context: &mut Context,
_context: &Context,
_manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
let mut previous = None;
@ -54,10 +56,8 @@ impl Run for Block {
Ok(previous)
}
}
impl ExpectedType for Block {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, _context: &Context) -> Result<Option<Type>, ValidationError> {
self.last_statement().expected_type(_context)
}
}

47
dust-lang/src/abstract_tree/built_in_function_call.rs
View File

@ -14,7 +14,7 @@ use crate::{
Value,
};
use super::{Evaluate, Evaluation, ExpectedType, Expression, Type, TypeConstructor, Validate};
use super::{AbstractNode, Evaluation, Expression, Type, TypeConstructor};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub enum BuiltInFunctionCall {
@ -25,13 +25,12 @@ pub enum BuiltInFunctionCall {
Sleep(Expression),
WriteLine(Expression),
}
impl AbstractNode for BuiltInFunctionCall {
fn define_types(&self, context: &Context) -> Result<(), ValidationError> {
Ok(())
}
impl Validate for BuiltInFunctionCall {
fn validate(
&self,
_context: &mut Context,
_manage_memory: bool,
) -> Result<(), ValidationError> {
fn validate(&self, _context: &Context, _manage_memory: bool) -> Result<(), ValidationError> {
match self {
BuiltInFunctionCall::JsonParse(_, expression) => {
expression.validate(_context, _manage_memory)
@ -49,14 +48,12 @@ impl Validate for BuiltInFunctionCall {
}
}
}
}
impl Evaluate for BuiltInFunctionCall {
fn evaluate(
self,
context: &mut Context,
context: &Context,
_manage_memory: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
match self {
BuiltInFunctionCall::JsonParse(_type, expression) => {
let action = expression.clone().evaluate(context, _manage_memory)?;
@ -71,7 +68,7 @@ impl Evaluate for BuiltInFunctionCall {
if let ValueInner::String(string) = value.inner().as_ref() {
let deserialized = serde_json::from_str(string)?;
Ok(Evaluation::Return(deserialized))
Ok(Some(Evaluation::Return(deserialized)))
} else {
Err(RuntimeError::ValidationFailure(
ValidationError::ExpectedString {
@ -96,7 +93,7 @@ impl Evaluate for BuiltInFunctionCall {
0
};
Ok(Evaluation::Return(Value::integer(length)))
Ok(Some(Evaluation::Return(Value::integer(length))))
}
BuiltInFunctionCall::ReadFile(expression) => {
let action = expression.clone().evaluate(context, _manage_memory)?;
@ -113,16 +110,16 @@ impl Evaluate for BuiltInFunctionCall {
String::with_capacity(0)
};
Ok(Evaluation::Return(Value::string(file_contents)))
Ok(Some(Evaluation::Return(Value::string(file_contents))))
}
BuiltInFunctionCall::ReadLine => {
let mut buffer = String::new();
stdin().read_line(&mut buffer)?;
Ok(Evaluation::Return(Value::string(
Ok(Some(Evaluation::Return(Value::string(
buffer.strip_suffix('\n').unwrap_or(&buffer),
)))
))))
}
BuiltInFunctionCall::Sleep(expression) => {
let action = expression.clone().evaluate(context, _manage_memory)?;
@ -162,17 +159,17 @@ impl Evaluate for BuiltInFunctionCall {
}
}
}
}
impl ExpectedType for BuiltInFunctionCall {
fn expected_type(&self, context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, context: &Context) -> Result<Option<Type>, ValidationError> {
match self {
BuiltInFunctionCall::JsonParse(r#type, _) => Ok(r#type.clone().construct(&context)?),
BuiltInFunctionCall::Length(_) => Ok(Type::Integer),
BuiltInFunctionCall::ReadFile(_) => Ok(Type::String),
BuiltInFunctionCall::ReadLine => Ok(Type::String),
BuiltInFunctionCall::Sleep(_) => Ok(Type::Void),
BuiltInFunctionCall::WriteLine(_) => Ok(Type::Void),
BuiltInFunctionCall::JsonParse(r#type, _) => {
Ok(Some(r#type.clone().construct(&context)?))
}
BuiltInFunctionCall::Length(_) => Ok(Some(Type::Integer)),
BuiltInFunctionCall::ReadFile(_) => Ok(Some(Type::String)),
BuiltInFunctionCall::ReadLine => Ok(Some(Type::String)),
BuiltInFunctionCall::Sleep(_) => Ok(None),
BuiltInFunctionCall::WriteLine(_) => Ok(None),
}
}
}

39
dust-lang/src/abstract_tree/enum_declaration.rs
View File

@ -1,8 +1,12 @@
use serde::{Deserialize, Serialize};
use crate::{context::Context, error::RuntimeError, identifier::Identifier};
use crate::{
context::Context,
error::{RuntimeError, ValidationError},
identifier::Identifier,
};
use super::{Evaluation, Run, Type, TypeConstructor, WithPosition};
use super::{AbstractNode, Evaluation, Type, TypeConstructor, WithPosition};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct EnumDeclaration {
@ -25,12 +29,8 @@ impl EnumDeclaration {
}
}
impl Run for EnumDeclaration {
fn run(
self,
context: &mut Context,
_manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
impl AbstractNode for EnumDeclaration {
fn define_types(&self, context: &Context) -> Result<(), ValidationError> {
let EnumDeclaration {
name,
type_parameters,
@ -74,6 +74,29 @@ impl Run for EnumDeclaration {
context.set_type(name.node, r#type)?;
Ok(())
}
fn validate(
&self,
context: &Context,
manage_memory: bool,
) -> Result<(), crate::error::ValidationError> {
Ok(())
}
fn evaluate(
self,
context: &Context,
_manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
Ok(None)
}
fn expected_type(
&self,
context: &Context,
) -> Result<Option<Type>, crate::error::ValidationError> {
Ok(None)
}
}

42
dust-lang/src/abstract_tree/expression.rs
View File

@ -7,8 +7,8 @@ use crate::{
};
use super::{
As, BuiltInFunctionCall, Evaluate, Evaluation, ExpectedType, FunctionCall, ListIndex, Logic,
MapIndex, Math, SourcePosition, Type, Validate, ValueNode, WithPosition,
AbstractNode, As, BuiltInFunctionCall, Evaluation, FunctionCall, ListIndex, Logic, MapIndex,
Math, SourcePosition, Type, ValueNode, WithPosition,
};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
@ -40,8 +40,22 @@ impl Expression {
}
}
impl Validate for Expression {
fn validate(&self, context: &mut Context, manage_memory: bool) -> Result<(), ValidationError> {
impl AbstractNode for Expression {
fn define_types(&self, _context: &Context) -> Result<(), ValidationError> {
match self {
Expression::As(inner) => inner.node.define_types(_context),
Expression::BuiltInFunctionCall(inner) => inner.node.define_types(_context),
Expression::FunctionCall(inner) => inner.node.define_types(_context),
Expression::Identifier(inner) => inner.node.define_types(_context),
Expression::MapIndex(inner) => inner.node.define_types(_context),
Expression::ListIndex(inner) => inner.node.define_types(_context),
Expression::Logic(inner) => inner.node.define_types(_context),
Expression::Math(inner) => inner.node.define_types(_context),
Expression::Value(inner) => inner.node.define_types(_context),
}
}
fn validate(&self, context: &Context, manage_memory: bool) -> Result<(), ValidationError> {
match self {
Expression::As(r#as) => r#as.node.validate(context, manage_memory),
Expression::BuiltInFunctionCall(built_in_function_call) => {
@ -73,14 +87,12 @@ impl Validate for Expression {
Expression::Value(value_node) => value_node.node.validate(context, manage_memory),
}
}
}
impl Evaluate for Expression {
fn evaluate(
self,
context: &mut Context,
context: &Context,
manage_memory: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
match self {
Expression::As(r#as) => r#as.node.evaluate(context, manage_memory),
Expression::FunctionCall(function_call) => {
@ -94,7 +106,7 @@ impl Evaluate for Expression {
};
if let Some(value) = value_option {
Ok(Evaluation::Return(value))
Ok(Some(Evaluation::Return(value)))
} else {
Err(RuntimeError::ValidationFailure(
ValidationError::VariableNotFound {
@ -114,21 +126,21 @@ impl Evaluate for Expression {
}
}
}
}
impl ExpectedType for Expression {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, _context: &Context) -> Result<Option<Type>, ValidationError> {
match self {
Expression::As(r#as) => r#as.node.expected_type(_context),
Expression::FunctionCall(function_call) => function_call.node.expected_type(_context),
Expression::Identifier(identifier) => {
if let Some(r#type) = _context.get_type(&identifier.node)? {
Ok(r#type)
} else {
let get_type = _context.get_type(identifier)?;
if get_type.is_none() {
Err(ValidationError::VariableNotFound {
identifier: identifier.node.clone(),
position: identifier.position,
})
} else {
Ok(get_type)
}
}
Expression::MapIndex(map_index) => map_index.node.expected_type(_context),

38
dust-lang/src/abstract_tree/function_call.rs
View File

@ -6,7 +6,7 @@ use crate::{
value::ValueInner,
};
use super::{Evaluate, Evaluation, ExpectedType, Expression, Type, TypeConstructor, Validate};
use super::{AbstractNode, Evaluation, Expression, Type, TypeConstructor};
#[derive(Debug, Clone, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct FunctionCall {
@ -33,8 +33,20 @@ impl FunctionCall {
}
}
impl Validate for FunctionCall {
fn validate(&self, context: &mut Context, manage_memory: bool) -> Result<(), ValidationError> {
impl AbstractNode for FunctionCall {
fn define_types(&self, _context: &Context) -> Result<(), ValidationError> {
self.function.define_ypes(_context)?;
let mut previous = ();
for expression in &self.value_arguments {
previous = expression.define_types(_context)?;
}
Ok(previous)
}
fn validate(&self, context: &Context, manage_memory: bool) -> Result<(), ValidationError> {
self.function.validate(context, manage_memory)?;
for expression in &self.value_arguments {
@ -69,14 +81,12 @@ impl Validate for FunctionCall {
})
}
}
}
impl Evaluate for FunctionCall {
fn evaluate(
self,
context: &mut Context,
context: &Context,
clear_variables: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
let function_position = self.function.position();
let action = self.function.evaluate(context, clear_variables)?;
let value = if let Evaluation::Return(value) = action {
@ -131,10 +141,8 @@ impl Evaluate for FunctionCall {
.clone()
.call(arguments, &mut function_context, clear_variables)
}
}
impl ExpectedType for FunctionCall {
fn expected_type(&self, context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, context: &Context) -> Result<Option<Type>, ValidationError> {
let function_node_type = self.function.expected_type(context)?;
if let Type::Function {
@ -157,10 +165,10 @@ impl ExpectedType for FunctionCall {
if identifier == &return_identifier {
let concrete_type = constructor.clone().construct(&context)?;
return Ok(Type::Generic {
return Ok(Some(Type::Generic {
identifier: identifier.clone(),
concrete_type: Some(Box::new(concrete_type)),
});
}));
}
}
}
@ -173,16 +181,16 @@ impl ExpectedType for FunctionCall {
if identifier == return_identifier {
let concrete_type = expression.expected_type(context)?;
return Ok(Type::Generic {
return Ok(Some(Type::Generic {
identifier,
concrete_type: Some(Box::new(concrete_type)),
});
}));
}
}
}
}
Ok(*return_type)
Ok(Some(*return_type))
} else {
Err(ValidationError::ExpectedFunction {
actual: function_node_type,

36
dust-lang/src/abstract_tree/if_else.rs
View File

@ -6,9 +6,7 @@ use crate::{
value::ValueInner,
};
use super::{
Block, Evaluate, Evaluation, ExpectedType, Expression, Run, Type, Validate, WithPosition,
};
use super::{AbstractNode, Block, Evaluation, Expression, Type, WithPosition};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct IfElse {
@ -34,8 +32,26 @@ impl IfElse {
}
}
impl Validate for IfElse {
fn validate(&self, context: &mut Context, manage_memory: bool) -> Result<(), ValidationError> {
impl AbstractNode for IfElse {
fn define_types(&self, _context: &Context) -> Result<(), ValidationError> {
self.if_expression.define_types(_context)?;
self.if_block.define_type(_context)?;
if let Some(else_ifs) = self.else_ifs {
for (expression, block) in else_ifs {
expression.define_types(_context)?;
block.node.define_types(_context)?;
}
}
if let Some(else_block) = self.else_block {
else_block.node.define_types(_context)?;
}
Ok(())
}
fn validate(&self, context: &Context, manage_memory: bool) -> Result<(), ValidationError> {
self.if_expression.validate(context, manage_memory)?;
self.if_block.node.validate(context, manage_memory)?;
@ -90,12 +106,10 @@ impl Validate for IfElse {
Ok(())
}
}
impl Run for IfElse {
fn run(
fn evaluate(
self,
context: &mut Context,
context: &Context,
_manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
let if_position = self.if_expression.position();
@ -154,10 +168,8 @@ impl Run for IfElse {
))
}
}
}
impl ExpectedType for IfElse {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, _context: &Context) -> Result<Option<Type>, ValidationError> {
self.if_block.node.expected_type(_context)
}
}

20
dust-lang/src/abstract_tree/list_index.rs
View File

@ -5,9 +5,7 @@ use crate::{
error::{RuntimeError, ValidationError},
};
use super::{
Evaluate, Evaluation, ExpectedType, Expression, Type, Validate, ValueNode, WithPosition,
};
use super::{AbstractNode, Evaluation, Expression, Type, Validate, ValueNode, WithPosition};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct ListIndex {
@ -32,12 +30,16 @@ impl Validate for ListIndex {
let collection_type = self.collection.expected_type(context)?;
let index_type = self.index.expected_type(context)?;
if index_type.is_none() {
return Err(ValidationError::CannotIndexWithVoid(self.index.position()));
}
match collection_type {
Type::List {
length: _,
item_type: _,
} => {
if index_type == Type::Integer {
if index_type == Some(Type::Integer) {
Ok(())
} else {
Err(ValidationError::CannotIndexWith {
@ -57,12 +59,12 @@ impl Validate for ListIndex {
}
}
impl Evaluate for ListIndex {
impl AbstractNode for ListIndex {
fn evaluate(
self,
context: &mut Context,
_clear_variables: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
let left_position = self.collection.position();
let left_action = self.collection.evaluate(context, _clear_variables)?;
let left_value = if let Evaluation::Return(value) = left_action {
@ -86,7 +88,7 @@ impl Evaluate for ListIndex {
let found_item = list.get(index as usize);
if let Some(item) = found_item {
Ok(Evaluation::Return(item.clone()))
Ok(Some(Evaluation::Return(item.clone())))
} else {
Ok(Evaluation::Void)
}
@ -101,10 +103,8 @@ impl Evaluate for ListIndex {
))
}
}
}
impl ExpectedType for ListIndex {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, _context: &mut Context) -> Result<Option<Type>, ValidationError> {
let left_type = self.collection.expected_type(_context)?;
if let (

14
dust-lang/src/abstract_tree/logic.rs
View File

@ -7,7 +7,7 @@ use crate::{
Value,
};
use super::{Evaluate, Evaluation, ExpectedType, Expression, Type, Validate};
use super::{AbstractNode, Evaluation, Expression, Type, Validate};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub enum Logic {
@ -90,12 +90,12 @@ impl Validate for Logic {
}
}
impl Evaluate for Logic {
impl AbstractNode for Logic {
fn evaluate(
self,
context: &mut Context,
_manage_memory: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
let run_and_expect_value = |expression: Expression| -> Result<Value, RuntimeError> {
let expression_position = expression.position();
let action = expression.evaluate(&mut context.clone(), _manage_memory)?;
@ -193,13 +193,11 @@ impl Evaluate for Logic {
}
};
Ok(Evaluation::Return(Value::boolean(boolean)))
Ok(Some(Evaluation::Return(Value::boolean(boolean))))
}
}
impl ExpectedType for Logic {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
Ok(Type::Boolean)
fn expected_type(&self, _context: &mut Context) -> Result<Option<Type>, ValidationError> {
Ok(Some(Type::Boolean))
}
}

13
dust-lang/src/abstract_tree/loop.rs
View File

@ -5,7 +5,7 @@ use crate::{
error::{RuntimeError, ValidationError},
};
use super::{Evaluation, Run, Statement, Validate};
use super::{AbstractNode, Evaluation, Statement, Validate};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct Loop {
@ -36,8 +36,8 @@ impl Validate for Loop {
}
}
impl Run for Loop {
fn run(
impl AbstractNode for Loop {
fn evaluate(
self,
_context: &mut Context,
_manage_memory: bool,
@ -52,4 +52,11 @@ impl Run for Loop {
}
}
}
fn expected_type(
&self,
_context: &mut Context,
) -> Result<Option<super::Type>, ValidationError> {
self.last_statement().expected_type(_context)
}
}

25
dust-lang/src/abstract_tree/map_index.rs
View File

@ -6,9 +6,7 @@ use crate::{
value::ValueInner,
};
use super::{
Evaluate, Evaluation, ExpectedType, Expression, Type, Validate, ValueNode, WithPosition,
};
use super::{AbstractNode, Evaluation, Expression, Type, Validate, ValueNode, WithPosition};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct MapIndex {
@ -35,12 +33,12 @@ impl Validate for MapIndex {
}
}
impl Evaluate for MapIndex {
impl AbstractNode for MapIndex {
fn evaluate(
self,
context: &mut Context,
_manage_memory: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
let collection_position = self.collection.position();
let action = self.collection.evaluate(context, _manage_memory)?;
let collection = if let Evaluation::Return(value) = action {
@ -54,12 +52,11 @@ impl Evaluate for MapIndex {
if let (ValueInner::Map(map), Expression::Identifier(index)) =
(collection.inner().as_ref(), self.index)
{
let action = map
let evaluation = map
.get(&index.node)
.map(|value| Evaluation::Return(value.clone()))
.unwrap_or(Evaluation::Void);
.map(|value| Some(Evaluation::Return(value.clone())));
Ok(action)
Ok(evaluation)
} else {
Err(RuntimeError::ValidationFailure(
ValidationError::CannotIndex {
@ -69,10 +66,8 @@ impl Evaluate for MapIndex {
))
}
}
}
impl ExpectedType for MapIndex {
fn expected_type(&self, context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, context: &mut Context) -> Result<Option<Type>, ValidationError> {
if let (Expression::Identifier(collection), Expression::Identifier(index)) =
(&self.collection, &self.index)
{
@ -87,7 +82,7 @@ impl ExpectedType for MapIndex {
if let ValueInner::Map(map) = collection.inner().as_ref() {
return if let Some(value) = map.get(&index.node) {
Ok(value.r#type(context)?)
Ok(Some(value.r#type(context)?))
} else {
Err(ValidationError::PropertyNotFound {
identifier: index.node.clone(),
@ -110,9 +105,9 @@ impl ExpectedType for MapIndex {
return if let Some(constructor) = constructor_option {
let r#type = constructor.clone().construct(&context)?;
Ok(r#type)
Ok(Some(r#type))
} else {
Ok(expression.expected_type(context)?)
expression.expected_type(context)
};
}
}

16
dust-lang/src/abstract_tree/math.rs
View File

@ -7,7 +7,7 @@ use crate::{
Value,
};
use super::{Evaluate, Evaluation, ExpectedType, Expression, SourcePosition, Type, Validate};
use super::{AbstractNode, Evaluation, Expression, SourcePosition, Type, Validate};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub enum Math {
@ -68,12 +68,12 @@ impl Validate for Math {
}
}
impl Evaluate for Math {
impl AbstractNode for Math {
fn evaluate(
self,
_context: &mut Context,
_clear_variables: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
let run_and_expect_value =
|position: SourcePosition, expression: Expression| -> Result<Value, RuntimeError> {
let action = expression.evaluate(&mut _context.clone(), _clear_variables)?;
@ -293,12 +293,10 @@ impl Evaluate for Math {
}
};
Ok(Evaluation::Return(value))
Ok(Some(Evaluation::Return(value)))
}
}
impl ExpectedType for Math {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
fn expected_type(&self, _context: &mut Context) -> Result<Option<Type>, ValidationError> {
match self {
Math::Add(left, right)
| Math::Subtract(left, right)
@ -309,11 +307,11 @@ impl ExpectedType for Math {
let right_type = right.expected_type(_context)?;
if let Type::Float = left_type {
return Ok(Type::Float);
return Ok(Some(Type::Float));
}
if let Type::Float = right_type {
return Ok(Type::Float);
return Ok(Some(Type::Float));
}
Ok(left_type)

98
dust-lang/src/abstract_tree/mod.rs
View File

@ -94,7 +94,6 @@ pub enum Evaluation {
Break,
Continue,
Return(Value),
Void,
}
#[derive(Debug, Clone)]
@ -116,10 +115,37 @@ impl AbstractTree {
context: &mut Context,
manage_memory: bool,
) -> Result<Option<Value>, Vec<DustError>> {
let valid_statements = self.validate(context, manage_memory)?;
let mut errors = Vec::new();
for statement in &self.0 {
let define_result = statement.define_types(context);
if let Err(error) = define_result {
errors.push(DustError::Validation {
error,
position: statement.position(),
});
continue;
}
let validation_result = statement.validate(context, manage_memory);
if let Err(error) = validation_result {
errors.push(DustError::Validation {
error,
position: statement.position(),
});
}
}
if !errors.is_empty() {
return Err(errors);
}
let mut previous_value = None;
for statement in valid_statements {
for statement in self.0 {
let position = statement.position();
let run = statement.run(context, manage_memory);
@ -140,50 +166,6 @@ impl AbstractTree {
Ok(previous_value)
}
fn validate(
self,
context: &mut Context,
manage_memory: bool,
) -> Result<Vec<Statement>, Vec<DustError>> {
let mut errors = Vec::new();
let mut valid_statements = Vec::new();
for statement in self.0 {
let validation = statement.validate(context, manage_memory);
if let Err(validation_error) = validation {
errors.push(DustError::Validation {
error: validation_error,
position: statement.position(),
})
} else if errors.is_empty() {
if let Statement::StructureDefinition(_) = statement {
let position = statement.position();
let run = statement.run(context, true);
if let Err(runtime_error) = run {
errors.push(DustError::Runtime {
error: runtime_error,
position,
});
return Err(errors);
}
} else {
valid_statements.push(statement)
}
} else {
continue;
}
}
if errors.is_empty() {
Ok(valid_statements)
} else {
Err(errors)
}
}
}
impl Index<usize> for AbstractTree {
@ -194,26 +176,16 @@ impl Index<usize> for AbstractTree {
}
}
pub trait Validate {
fn validate(&self, context: &mut Context, manage_memory: bool) -> Result<(), ValidationError>;
}
pub trait AbstractNode {
fn define_types(&self, context: &Context) -> Result<(), ValidationError>;
fn validate(&self, context: &Context, manage_memory: bool) -> Result<(), ValidationError>;
pub trait Evaluate: ExpectedType {
fn evaluate(
self,
context: &mut Context,
manage_memory: bool,
) -> Result<Evaluation, RuntimeError>;
}
pub trait Run {
fn run(
self,
context: &mut Context,
context: &Context,
manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError>;
}
pub trait ExpectedType {
fn expected_type(&self, context: &mut Context) -> Result<Type, ValidationError>;
fn expected_type(&self, context: &Context) -> Result<Option<Type>, ValidationError>;
}

92
dust-lang/src/abstract_tree/statement.rs
View File

@ -6,9 +6,9 @@ use crate::{
};
use super::{
Assignment, AsyncBlock, Block, EnumDeclaration, Evaluate, Evaluation, ExpectedType, Expression,
IfElse, Loop, Run, SourcePosition, StructureDefinition, Type, TypeAlias, Validate, While,
WithPosition,
AbstractNode, Assignment, AsyncBlock, Block, DefineTypes, EnumDeclaration, Evaluation,
Expression, IfElse, Loop, SourcePosition, StructureDefinition, Type, TypeAlias, Validate,
While, WithPosition,
};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
@ -43,7 +43,7 @@ impl Statement {
}
}
pub fn last_child_statement(&self) -> &Self {
pub fn last_evaluated_statement(&self) -> &Self {
match self {
Statement::Block(inner) => inner.node.last_statement(),
Statement::Loop(inner) => inner.node.last_statement(),
@ -52,30 +52,50 @@ impl Statement {
}
}
impl Run for Statement {
fn run(
impl DefineTypes for Statement {
fn define_types(&self, _context: &Context) -> Result<(), ValidationError> {
match self {
Statement::Expression(expression) => expression.define_types(_context),
Statement::IfElse(if_else) => if_else.node.define_types(_context),
Statement::Block(block) => block.node.define_types(_context),
Statement::AsyncBlock(async_block) => async_block.node.define_types(_context),
Statement::Assignment(assignment) => assignment.node.define_types(_context),
Statement::Break(_) => Ok(None),
Statement::Loop(r#loop) => r#loop.node.define_types(_context),
Statement::StructureDefinition(struct_definition) => {
struct_definition.node.define_types(_context)
}
Statement::TypeAlias(type_alias) => type_alias.node.define_types(_context),
Statement::EnumDeclaration(enum_declaration) => {
enum_declaration.node.define_types(_context)
}
Statement::While(r#while) => r#while.node.define_types(_context),
}
}
}
impl AbstractNode for Statement {
fn evaluate(
self,
context: &mut Context,
manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
let result = match self {
Statement::Assignment(assignment) => assignment.node.run(context, manage_memory),
Statement::AsyncBlock(async_block) => async_block.node.run(context, manage_memory),
Statement::Block(block) => block.node.run(context, manage_memory),
Statement::Assignment(assignment) => assignment.node.evaluate(context, manage_memory),
Statement::AsyncBlock(async_block) => async_block.node.evaluate(context, manage_memory),
Statement::Block(block) => block.node.evaluate(context, manage_memory),
Statement::Break(_) => Ok(Some(Evaluation::Break)),
Statement::Expression(expression) => {
let evaluation = expression.evaluate(context, manage_memory)?;
Ok(Some(evaluation))
}
Statement::IfElse(if_else) => if_else.node.run(context, manage_memory),
Statement::Loop(r#loop) => r#loop.node.run(context, manage_memory),
Statement::Expression(expression) => expression.evaluate(context, manage_memory),
Statement::IfElse(if_else) => if_else.node.evaluate(context, manage_memory),
Statement::Loop(r#loop) => r#loop.node.evaluate(context, manage_memory),
Statement::StructureDefinition(structure_definition) => {
structure_definition.node.run(context, manage_memory)
structure_definition.node.evaluate(context, manage_memory)
}
Statement::TypeAlias(type_alias) => type_alias.node.run(context, manage_memory),
Statement::EnumDeclaration(type_alias) => type_alias.node.run(context, manage_memory),
Statement::While(r#while) => r#while.node.run(context, manage_memory),
Statement::TypeAlias(type_alias) => type_alias.node.evaluate(context, manage_memory),
Statement::EnumDeclaration(type_alias) => {
type_alias.node.evaluate(context, manage_memory)
}
Statement::While(r#while) => r#while.node.evaluate(context, manage_memory),
};
if manage_memory {
@ -84,6 +104,26 @@ impl Run for Statement {
result
}
fn expected_type(&self, _context: &mut Context) -> Result<Option<Type>, ValidationError> {
match self {
Statement::Expression(expression) => expression.expected_type(_context),
Statement::IfElse(if_else) => if_else.node.expected_type(_context),
Statement::Block(block) => block.node.expected_type(_context),
Statement::AsyncBlock(async_block) => async_block.node.expected_type(_context),
Statement::Assignment(assignment) => assignment.node.expected_type(_context),
Statement::Break(_) => Ok(None),
Statement::Loop(r#loop) => r#loop.node.expected_type(_context),
Statement::StructureDefinition(struct_definition) => {
struct_definition.node.expected_type(_context)
}
Statement::TypeAlias(type_alias) => type_alias.node.expected_type(_context),
Statement::EnumDeclaration(enum_declaration) => {
enum_declaration.node.expected_type(_context)
}
Statement::While(r#while) => r#while.node.expected_type(_context),
}
}
}
impl Validate for Statement {
@ -107,15 +147,3 @@ impl Validate for Statement {
}
}
}
impl ExpectedType for Statement {
fn expected_type(&self, _context: &mut Context) -> Result<Type, ValidationError> {
match self {
Statement::Expression(expression) => expression.expected_type(_context),
Statement::IfElse(if_else) => if_else.node.expected_type(_context),
Statement::Block(block) => block.node.expected_type(_context),
Statement::AsyncBlock(async_block) => async_block.node.expected_type(_context),
_ => Ok(Type::Void),
}
}
}

13
dust-lang/src/abstract_tree/structure_definition.rs
View File

@ -2,7 +2,7 @@ use serde::{Deserialize, Serialize};
use crate::{context::Context, error::RuntimeError, identifier::Identifier};
use super::{Evaluation, Run, Type, TypeConstructor};
use super::{AbstractNode, Evaluation, Type, TypeConstructor};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct StructureDefinition {
@ -16,8 +16,8 @@ impl StructureDefinition {
}
}
impl Run for StructureDefinition {
fn run(
impl AbstractNode for StructureDefinition {
fn evaluate(
self,
context: &mut Context,
_manage_memory: bool,
@ -39,4 +39,11 @@ impl Run for StructureDefinition {
Ok(None)
}
fn expected_type(
&self,
context: &mut Context,
) -> Result<Option<Type>, crate::error::ValidationError> {
Ok(None)
}
}

1
dust-lang/src/abstract_tree/type.rs
View File

@ -37,7 +37,6 @@ pub enum Type {
name: Identifier,
fields: Vec<(Identifier, Type)>,
},
Void,
}
impl Type {

26
dust-lang/src/abstract_tree/type_alias.rs
View File

@ -1,8 +1,12 @@
use serde::{Deserialize, Serialize};
use crate::{context::Context, error::RuntimeError, identifier::Identifier};
use crate::{
context::Context,
error::{RuntimeError, ValidationError},
identifier::Identifier,
};
use super::{Evaluation, Run, TypeConstructor, WithPosition};
use super::{AbstractNode, DefineTypes, Evaluation, Type, TypeConstructor, WithPosition};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct TypeAlias {
@ -19,16 +23,26 @@ impl TypeAlias {
}
}
impl Run for TypeAlias {
fn run(
impl AbstractNode for TypeAlias {
fn evaluate(
self,
context: &mut Context,
_manage_memory: bool,
manage_memory: bool,
) -> Result<Option<Evaluation>, RuntimeError> {
Ok(None)
}
fn expected_type(&self, context: &mut Context) -> Result<Option<Type>, ValidationError> {
Ok(None)
}
}
impl DefineTypes for TypeAlias {
fn define_types(&self, context: &Context) -> Result<(), ValidationError> {
let r#type = self.constructor.construct(&context)?;
context.set_type(self.identifier.node, r#type)?;
Ok(None)
Ok(())
}
}

26
dust-lang/src/abstract_tree/type_constructor.rs
View File

@ -52,14 +52,14 @@ impl TypeConstructor {
}
}
pub fn construct(self, context: &Context) -> Result<Type, ValidationError> {
pub fn construct(&self, context: &Context) -> Result<Type, ValidationError> {
let r#type = match self {
TypeConstructor::Invokation(TypeInvokationConstructor { identifier, .. }) => {
let invoked_type = if let Some(r#type) = context.get_type(&identifier.node)? {
r#type
} else {
return Err(ValidationError::VariableNotFound {
identifier: identifier.node,
identifier: identifier.node.clone(),
position: identifier.position,
});
};
@ -90,7 +90,7 @@ impl TypeConstructor {
name,
type_parameters,
variants,
} = enum_type_constructor.node;
} = &enum_type_constructor.node;
let mut type_variants = Vec::with_capacity(variants.len());
for (variant_name, constructors) in variants {
@ -103,19 +103,19 @@ impl TypeConstructor {
types.push(r#type);
}
type_variants.push((variant_name.node, Some(types)));
type_variants.push((variant_name.node.clone(), Some(types)));
} else {
type_variants.push((variant_name.node, None))
type_variants.push((variant_name.node.clone(), None))
}
}
Type::Enum {
name: name.node,
type_parameters: type_parameters.map(|identifiers| {
name: name.node.clone(),
type_parameters: type_parameters.as_ref().map(|identifiers| {
identifiers
.into_iter()
.map(|identifier| Type::Generic {
identifier: identifier.node,
identifier: identifier.node.clone(),
concrete_type: None,
})
.collect()
@ -128,12 +128,12 @@ impl TypeConstructor {
type_parameters: declared_type_parameters,
value_parameters: declared_value_parameters,
return_type,
} = function_type_constructor.node;
} = &function_type_constructor.node;
let type_parameters = declared_type_parameters.map(|identifiers| {
let type_parameters = declared_type_parameters.as_ref().map(|identifiers| {
identifiers
.into_iter()
.map(|identifier| identifier.node)
.map(|identifier| identifier.node.clone())
.collect()
});
let mut value_parameters = Vec::with_capacity(declared_value_parameters.len());
@ -153,11 +153,11 @@ impl TypeConstructor {
}
}
TypeConstructor::List(constructor) => {
let ListTypeConstructor { length, item_type } = constructor.node;
let ListTypeConstructor { length, item_type } = &constructor.node;
let constructed_type = item_type.construct(context)?;
Type::List {
length,
length: *length,
item_type: Box::new(constructed_type),
}
}

181
dust-lang/src/abstract_tree/value_node.rs
View File

@ -10,8 +10,7 @@ use crate::{
};
use super::{
Block, Evaluate, Evaluation, ExpectedType, Expression, Type, TypeConstructor, Validate,
WithPosition,
AbstractNode, Block, Evaluation, Expression, Type, TypeConstructor, Validate, WithPosition,
};
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
@ -165,12 +164,12 @@ impl Validate for ValueNode {
}
}
impl Evaluate for ValueNode {
impl AbstractNode for ValueNode {
fn evaluate(
self,
context: &mut Context,
_manage_memory: bool,
) -> Result<Evaluation, RuntimeError> {
) -> Result<Option<Evaluation>, RuntimeError> {
let value = match self {
ValueNode::Boolean(boolean) => Value::boolean(boolean),
ValueNode::EnumInstance {
@ -297,7 +296,92 @@ impl Evaluate for ValueNode {
}
};
Ok(Evaluation::Return(value))
Ok(Some(Evaluation::Return(value)))
}
fn expected_type(&self, context: &mut Context) -> Result<Option<Type>, ValidationError> {
let r#type = match self {
ValueNode::Boolean(_) => Type::Boolean,
ValueNode::EnumInstance { type_name, .. } => {
if let Some(r#type) = context.get_type(&type_name.node)? {
r#type
} else {
return Err(ValidationError::EnumDefinitionNotFound {
identifier: type_name.node.clone(),
position: Some(type_name.position),
});
}
}
ValueNode::Float(_) => Type::Float,
ValueNode::Integer(_) => Type::Integer,
ValueNode::List(items) => {
let item_type = items.first().unwrap().expected_type(context)?;
Type::List {
length: items.len(),
item_type: Box::new(item_type),
}
}
ValueNode::Map(_) => Type::Map,
ValueNode::Range(_) => Type::Range,
ValueNode::String(_) => Type::String,
ValueNode::Function {
type_parameters,
value_parameters,
return_type,
..
} => {
let mut value_parameter_types = Vec::with_capacity(value_parameters.len());
for (_, type_constructor) in value_parameters {
let r#type = type_constructor.clone().construct(&context)?;
value_parameter_types.push(r#type);
}
let type_parameters = type_parameters.clone().map(|parameters| {
parameters
.iter()
.map(|identifier| identifier.clone())
.collect()
});
let return_type = return_type.clone().construct(&context)?;
Type::Function {
type_parameters,
value_parameters: value_parameter_types,
return_type: Box::new(return_type),
}
}
ValueNode::Structure {
name,
fields: expressions,
} => {
let mut types = Vec::with_capacity(expressions.len());
for (identifier, expression) in expressions {
let r#type = expression.expected_type(context)?;
types.push((
identifier.clone(),
WithPosition {
node: r#type,
position: expression.position(),
},
));
}
Type::Structure {
name: name.node.clone(),
fields: types
.into_iter()
.map(|(identifier, r#type)| (identifier.node, r#type.node))
.collect(),
}
}
};
Ok(Some(r#type))
}
}
@ -420,90 +504,3 @@ impl Ord for ValueNode {
}
}
}
impl ExpectedType for ValueNode {
fn expected_type(&self, context: &mut Context) -> Result<Type, ValidationError> {
let r#type = match self {
ValueNode::Boolean(_) => Type::Boolean,
ValueNode::EnumInstance { type_name, .. } => {
if let Some(r#type) = context.get_type(&type_name.node)? {
r#type
} else {
return Err(ValidationError::EnumDefinitionNotFound {
identifier: type_name.node.clone(),
position: Some(type_name.position),
});
}
}
ValueNode::Float(_) => Type::Float,
ValueNode::Integer(_) => Type::Integer,
ValueNode::List(items) => {
let item_type = items.first().unwrap().expected_type(context)?;
Type::List {
length: items.len(),
item_type: Box::new(item_type),
}
}
ValueNode::Map(_) => Type::Map,
ValueNode::Range(_) => Type::Range,
ValueNode::String(_) => Type::String,
ValueNode::Function {
type_parameters,
value_parameters,
return_type,
..
} => {
let mut value_parameter_types = Vec::with_capacity(value_parameters.len());
for (_, type_constructor) in value_parameters {
let r#type = type_constructor.clone().construct(&context)?;
value_parameter_types.push(r#type);
}
let type_parameters = type_parameters.clone().map(|parameters| {
parameters
.iter()
.map(|identifier| identifier.clone())
.collect()
});
let return_type = return_type.clone().construct(&context)?;
Type::Function {
type_parameters,
value_parameters: value_parameter_types,
return_type: Box::new(return_type),
}
}
ValueNode::Structure {
name,
fields: expressions,
} => {
let mut types = Vec::with_capacity(expressions.len());
for (identifier, expression) in expressions {
let r#type = expression.expected_type(context)?;
types.push((
identifier.clone(),
WithPosition {
node: r#type,
position: expression.position(),
},
));
}
Type::Structure {
name: name.node.clone(),
fields: types
.into_iter()
.map(|(identifier, r#type)| (identifier.node, r#type.node))
.collect(),
}
}
};
Ok(r#type)
}
}

10
dust-lang/src/abstract_tree/while.rs
View File

@ -7,7 +7,7 @@ use crate::{
Value,
};
use super::{Evaluate, Evaluation, Expression, Run, Statement, Validate};
use super::{AbstractNode, Evaluation, Expression, Statement, Type, Validate};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord, Serialize, Deserialize)]
pub struct While {
@ -40,8 +40,8 @@ impl Validate for While {
}
}
impl Run for While {
fn run(
impl AbstractNode for While {
fn evaluate(
self,
_context: &mut Context,
_manage_memory: bool,
@ -74,4 +74,8 @@ impl Run for While {
Ok(None)
}
fn expected_type(&self, _context: &mut Context) -> Result<Option<Type>, ValidationError> {
self.statements.last().unwrap().expected_type(_context)
}
}

1
dust-lang/src/error.rs
View File

@ -114,6 +114,7 @@ pub enum ValidationError {
index_type: Type,
index_position: SourcePosition,
},
CannotIndexWithVoid(SourcePosition),
ExpectedString {
actual: Type,
position: SourcePosition,

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

@ -14,7 +14,7 @@ use serde::{
};
use crate::{
abstract_tree::{Block, Evaluation, Run, Type, WithPosition},
abstract_tree::{Block, Evaluation, Type, WithPosition},
context::Context,
error::{RuntimeError, ValidationError},
identifier::Identifier,