47 lines
1.1 KiB
Rust
47 lines
1.1 KiB
Rust
pub mod assignment;
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pub mod block;
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pub mod expression;
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pub mod identifier;
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pub mod index;
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pub mod logic;
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pub mod r#loop;
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pub mod math;
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pub mod statement;
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pub mod r#type;
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pub mod value_node;
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pub use self::{
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assignment::Assignment, block::Block, expression::Expression, identifier::Identifier,
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index::Index, logic::Logic, math::Math, r#loop::Loop, r#type::Type, statement::Statement,
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value_node::ValueNode,
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};
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use crate::{
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context::Context,
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error::{RuntimeError, ValidationError},
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Value,
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};
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pub trait AbstractTree {
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fn expected_type(&self, context: &Context) -> Result<Type, ValidationError>;
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fn validate(&self, context: &Context) -> Result<(), ValidationError>;
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fn run(self, context: &Context) -> Result<Action, RuntimeError>;
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}
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#[derive(Debug, Clone, Eq, PartialEq, PartialOrd, Ord)]
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pub enum Action {
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Break(Value),
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Return(Value),
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None,
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}
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impl Action {
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pub fn as_return_value(self) -> Result<Value, ValidationError> {
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if let Action::Return(value) = self {
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Ok(value)
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} else {
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Err(ValidationError::InterpreterExpectedReturn)
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}
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}
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}
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