nac3/nac3core/src/top_level.rs

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use std::{collections::HashMap, sync::Arc};
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use super::typecheck::type_inferencer::PrimitiveStore;
use super::typecheck::typedef::{SharedUnifier, Type, Unifier};
use crate::symbol_resolver::SymbolResolver;
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use inkwell::{
basic_block::BasicBlock, builder::Builder, context::Context, module::Module,
types::BasicTypeEnum, values::PointerValue,
};
use parking_lot::RwLock;
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use rustpython_parser::ast::Stmt;
#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy)]
pub struct DefinitionId(pub usize);
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pub enum TopLevelDef {
Class {
// object ID used for TypeEnum
object_id: DefinitionId,
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// type variables bounded to the class.
type_vars: Vec<Type>,
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// class fields
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fields: Vec<(String, Type)>,
// class methods, pointing to the corresponding function definition.
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methods: Vec<(String, Type, DefinitionId)>,
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// ancestor classes, including itself.
ancestors: Vec<DefinitionId>,
},
Function {
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// prefix for symbol, should be unique globally, and not ending with numbers
name: String,
// function signature.
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signature: Type,
/// Function instance to symbol mapping
/// Key: string representation of type variable values, sorted by variable ID in ascending
/// order, including type variables associated with the class.
/// Value: function symbol name.
instance_to_symbol: HashMap<String, String>,
/// Function instances to annotated AST mapping
/// Key: string representation of type variable values, sorted by variable ID in ascending
/// order, including type variables associated with the class. Excluding rigid type
/// variables.
/// Value: AST annotated with types together with a unification table index. Could contain
/// rigid type variables that would be substituted when the function is instantiated.
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instance_to_stmt: HashMap<String, (Stmt<Option<Type>>, usize)>,
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},
}
pub struct CodeGenTask {
pub subst: HashMap<usize, Type>,
pub symbol_name: String,
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pub body: Stmt<Option<Type>>,
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pub unifier: SharedUnifier,
}
pub struct TopLevelContext {
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pub definitions: Arc<RwLock<Vec<RwLock<TopLevelDef>>>>,
pub unifiers: Arc<RwLock<Vec<SharedUnifier>>>,
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}
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pub struct CodeGenContext<'ctx> {
pub ctx: &'ctx Context,
pub builder: Builder<'ctx>,
pub module: Module<'ctx>,
pub top_level: &'ctx TopLevelContext,
pub unifier: Unifier,
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pub resolver: Box<dyn SymbolResolver>,
pub var_assignment: HashMap<String, PointerValue<'ctx>>,
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pub type_cache: HashMap<Type, BasicTypeEnum<'ctx>>,
pub primitives: PrimitiveStore,
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// stores the alloca for variables
pub init_bb: BasicBlock<'ctx>,
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// where continue and break should go to respectively
// the first one is the test_bb, and the second one is bb after the loop
pub loop_bb: Option<(BasicBlock<'ctx>, BasicBlock<'ctx>)>,
}