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Clean up

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This commit is contained in:
Jeff 2023-10-01 05:03:59 -04:00
parent 3b0b9d044e
commit ff60640ff8
3 changed files with 95 additions and 93 deletions
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162
src/interface.rs
View File

@ -202,74 +202,13 @@ impl EvaluatorTree for Statement {
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub enum Expression {
Identifier(String),
Identifier(Identifier),
Value(Value),
ControlFlow(Box<ControlFlow>),
Assignment(Box<Assignment>),
Math(Box<Math>),
}
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub struct Math {
left: Expression,
operator: MathOperator,
right: Expression,
}
impl EvaluatorTree for Math {
fn new(node: Node, source: &str) -> Result<Self> {
let left_node = node.child(0).unwrap();
let operator_node = node.child(1).unwrap().child(0).unwrap();
let right_node = node.child(2).unwrap();
println!("{left_node:#?}");
println!("{operator_node:#?}");
println!("{right_node:#?}");
let operator = match operator_node.kind() {
"+" => MathOperator::Add,
"-" => MathOperator::Subtract,
"*" => MathOperator::Multiply,
"/" => MathOperator::Divide,
"%" => MathOperator::Modulo,
_ => {
return Err(Error::UnexpectedSyntax {
expected: "+, -, *, / or %",
actual: operator_node.kind(),
location: operator_node.start_position(),
})
}
};
Ok(Math {
left: Expression::new(left_node, source)?,
operator,
right: Expression::new(right_node, source)?,
})
}
fn run(&self, context: &mut VariableMap) -> Result<Value> {
let left_value = self.left.run(context)?.as_number()?;
let right_value = self.right.run(context)?.as_number()?;
let outcome = match self.operator {
MathOperator::Add => left_value + right_value,
MathOperator::Subtract => left_value - right_value,
MathOperator::Multiply => left_value * right_value,
MathOperator::Divide => left_value / right_value,
MathOperator::Modulo => left_value % right_value,
};
Ok(Value::Float(outcome))
}
}
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub enum MathOperator {
Add,
Subtract,
Multiply,
Divide,
Modulo,
}
impl EvaluatorTree for Expression {
fn new(node: Node, source: &str) -> Result<Self> {
let node = if node.kind() == "expression" {
@ -279,12 +218,7 @@ impl EvaluatorTree for Expression {
};
let expression = match node.kind() {
"identifier" => {
let byte_range = node.byte_range();
let identifier = &source[byte_range];
Self::Identifier(identifier.to_string())
}
"identifier" => Self::Identifier(Identifier::new(node, source)?),
"value" => Expression::Value(Value::new(node, source)?),
"control_flow" => Expression::ControlFlow(Box::new(ControlFlow::new(node, source)?)),
"assignment" => Expression::Assignment(Box::new(Assignment::new(node, source)?)),
@ -303,15 +237,7 @@ impl EvaluatorTree for Expression {
fn run(&self, context: &mut VariableMap) -> Result<Value> {
match self {
Expression::Identifier(identifier) => {
let value = context.get_value(&identifier)?;
if let Some(value) = value {
Ok(value)
} else {
Ok(Value::Empty)
}
}
Expression::Identifier(identifier) => identifier.run(context),
Expression::Value(value) => Ok(value.clone()),
Expression::ControlFlow(control_flow) => control_flow.run(context),
Expression::Assignment(_) => todo!(),
@ -320,6 +246,30 @@ impl EvaluatorTree for Expression {
}
}
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub struct Identifier(String);
impl Identifier {
pub fn take_inner(self) -> String {
self.0
}
}
impl EvaluatorTree for Identifier {
fn new(node: Node, source: &str) -> Result<Self> {
let byte_range = node.byte_range();
let identifier = &source[byte_range];
Ok(Identifier(identifier.to_string()))
}
fn run(&self, context: &mut VariableMap) -> Result<Value> {
let value = context.get_value(&self.0)?.unwrap_or_default();
Ok(value)
}
}
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub struct ControlFlow {
if_expression: Expression,
@ -382,6 +332,64 @@ impl Assignment {
}
}
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub struct Math {
left: Expression,
operator: MathOperator,
right: Expression,
}
impl EvaluatorTree for Math {
fn new(node: Node, source: &str) -> Result<Self> {
let left_node = node.child(0).unwrap();
let operator_node = node.child(1).unwrap().child(0).unwrap();
let right_node = node.child(2).unwrap();
let operator = match operator_node.kind() {
"+" => MathOperator::Add,
"-" => MathOperator::Subtract,
"*" => MathOperator::Multiply,
"/" => MathOperator::Divide,
"%" => MathOperator::Modulo,
_ => {
return Err(Error::UnexpectedSyntax {
expected: "+, -, *, / or %",
actual: operator_node.kind(),
location: operator_node.start_position(),
})
}
};
Ok(Math {
left: Expression::new(left_node, source)?,
operator,
right: Expression::new(right_node, source)?,
})
}
fn run(&self, context: &mut VariableMap) -> Result<Value> {
let left_value = self.left.run(context)?.as_number()?;
let right_value = self.right.run(context)?.as_number()?;
let outcome = match self.operator {
MathOperator::Add => left_value + right_value,
MathOperator::Subtract => left_value - right_value,
MathOperator::Multiply => left_value * right_value,
MathOperator::Divide => left_value / right_value,
MathOperator::Modulo => left_value % right_value,
};
Ok(Value::Float(outcome))
}
}
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub enum MathOperator {
Add,
Subtract,
Multiply,
Divide,
Modulo,
}
#[cfg(test)]
mod tests {
use crate::Table;

6
src/value/function.rs
View File

@ -2,16 +2,16 @@ use std::fmt::{self, Display, Formatter};
use serde::{Deserialize, Serialize};
use crate::{Result, Statement, Value, VariableMap};
use crate::{Identifier, Result, Statement, Value, VariableMap};
#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, PartialOrd, Ord)]
pub struct Function {
identifiers: Vec<String>,
identifiers: Vec<Identifier>,
statements: Vec<Statement>,
}
impl Function {
pub fn new(identifiers: Vec<String>, statements: Vec<Statement>) -> Self {
pub fn new(identifiers: Vec<Identifier>, statements: Vec<Statement>) -> Self {
Function {
identifiers,
statements,

20
src/value/mod.rs
View File

@ -1,7 +1,7 @@
//! Types that represent runtime values.
use crate::{
error::{Error, Result},
EvaluatorTree, Expression, Function, Statement, Table, Time, ValueType, VariableMap,
EvaluatorTree, Function, Identifier, Statement, Table, Time, ValueType, VariableMap,
};
use json::JsonValue;
@ -108,11 +108,9 @@ impl Value {
let child = node.child(index).unwrap();
if child.kind() == "identifier" {
let child_expression = Expression::new(child, source)?;
let identifier = Identifier::new(child, source)?;
if let Expression::Identifier(column_name) = child_expression {
column_names.push(column_name)
}
column_names.push(identifier.take_inner())
}
if child.kind() == "list" {
@ -142,11 +140,9 @@ impl Value {
let child = node.child(index).unwrap();
if child.kind() == "identifier" {
let child_identifier = Expression::new(child, source)?;
let identifier = Identifier::new(child, source)?;
if let Expression::Identifier(identifier) = child_identifier {
key = identifier
}
key = identifier.take_inner()
}
if child.kind() == "value" {
@ -167,11 +163,9 @@ impl Value {
let child = node.child(index).unwrap();
if child.kind() == "identifier" {
let child_identifier = Expression::new(child, source)?;
let identifier = Identifier::new(child, source)?;
if let Expression::Identifier(identifier) = child_identifier {
identifiers.push(identifier)
}
identifiers.push(identifier)
}
if child.kind() == "statement" {