luaur-analysis 0.1.0

Luau type checker and type inference (Rust).
Documentation 
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//! Node: `cxx:Function:Luau.Analysis:Analysis/src/ToString.cpp:1958:to_string`
//! Source: `Analysis/src/ToString.cpp:1958-2058` (hand-ported)

use crate::functions::to_string_to_string_alt_m::to_string_type_id_to_string_options as tos_ty;
use crate::functions::to_string_to_string_alt_n::to_string_type_pack_id_to_string_options as tos_tp;
use crate::functions::to_string_vector_to_string::to_string_vector_vector_type_id_to_string_options as to_string_vector_ty;
use crate::records::constraint::Constraint;
use crate::records::to_string_options::ToStringOptions;
use crate::type_aliases::constraint_v::ConstraintV;
use alloc::format;
use alloc::string::String;

/// C++ `std::string toString(const Constraint& constraint, ToStringOptions& opts)`.
pub fn to_string_constraint_to_string_options(
    constraint: &Constraint,
    opts: &mut ToStringOptions,
) -> String {
    match &constraint.c {
        ConstraintV::Subtype(c) => {
            let sub_str = tos_ty(c.sub_type, opts);
            let super_str = tos_ty(c.super_type, opts);
            format!("{} <: {}", sub_str, super_str)
        }
        ConstraintV::PackSubtype(c) => {
            let sub_str = tos_tp(c.sub_pack, opts);
            let super_str = tos_tp(c.super_pack, opts);
            format!("{} <...: {}", sub_str, super_str)
        }
        ConstraintV::Generalization(c) => {
            let sub_str = tos_ty(c.generalized_type, opts);
            let super_str = tos_ty(c.source_type, opts);
            format!("{} ~ gen {}", sub_str, super_str)
        }
        ConstraintV::Iterable(c) => {
            let iterator_str = tos_tp(c.iterator, opts);
            let variable_str = to_string_vector_ty(&c.variables, opts);

            format!("{} ~ iterate {}", variable_str, iterator_str)
        }
        ConstraintV::Name(c) => {
            let named_str = tos_ty(c.named_type, opts);
            format!("@name({}) = {}", named_str, c.name)
        }
        ConstraintV::TypeAliasExpansion(c) => {
            let target_str = tos_ty(c.target, opts);
            format!("expand {}", target_str)
        }
        ConstraintV::FunctionCall(c) => {
            format!(
                "call {}( {} ) with {{ result = {} }}",
                tos_ty(c.fn_type, opts),
                tos_tp(c.args_pack, opts),
                tos_tp(c.result, opts)
            )
        }
        ConstraintV::FunctionCheck(c) => {
            format!(
                "function_check {} {}",
                tos_ty(c.fn_type, opts),
                tos_tp(c.args_pack, opts)
            )
        }
        ConstraintV::PrimitiveType(c) => {
            if let Some(expected_type) = c.expected_type {
                format!(
                    "prim {}[expected: {}] as {}",
                    tos_ty(c.free_type, opts),
                    tos_ty(expected_type, opts),
                    tos_ty(c.primitive_type, opts)
                )
            } else {
                format!(
                    "prim {} as {}",
                    tos_ty(c.free_type, opts),
                    tos_ty(c.primitive_type, opts)
                )
            }
        }
        ConstraintV::HasProp(c) => {
            let mut s = format!(
                "{} ~ hasProp {}, \"{}\" ctx={}",
                tos_ty(c.result_type, opts),
                tos_ty(c.subject_type, opts),
                c.prop,
                c.context as i32
            );
            if c.in_conditional {
                s.push_str(" (inConditional)");
            }
            s
        }
        ConstraintV::HasIndexer(c) => {
            format!(
                "{} ~ hasIndexer {} {}",
                tos_ty(c.result_type, opts),
                tos_ty(c.subject_type, opts),
                tos_ty(c.index_type, opts)
            )
        }
        ConstraintV::AssignProp(c) => {
            format!(
                "{} ~ assignProp {} {} {}",
                tos_ty(c.prop_type, opts),
                tos_ty(c.lhs_type, opts),
                c.prop_name,
                tos_ty(c.rhs_type, opts)
            )
        }
        ConstraintV::AssignIndex(c) => {
            format!(
                "assignIndex {} {} {}",
                tos_ty(c.lhs_type, opts),
                tos_ty(c.index_type, opts),
                tos_ty(c.rhs_type, opts)
            )
        }
        ConstraintV::Unpack(c) => {
            format!(
                "{} ~ ...unpack {}",
                to_string_vector_ty(&c.result_pack, opts),
                tos_tp(c.source_pack, opts)
            )
        }
        ConstraintV::Reduce(c) => format!("reduce {}", tos_ty(c.ty, opts)),
        ConstraintV::ReducePack(c) => {
            format!("reduce {}", tos_tp(c.tp, opts))
        }
        ConstraintV::Equality(c) => {
            format!(
                "equality: {} ~ {}",
                tos_ty(c.result_type, opts),
                tos_ty(c.assignment_type, opts)
            )
        }
        ConstraintV::Simplify(c) => format!("simplify {}", tos_ty(c.ty, opts)),
        ConstraintV::PushFunctionType(c) => {
            format!(
                "push_function_type {} => {}",
                tos_ty(c.expected_function_type, opts),
                tos_ty(c.function_type, opts)
            )
        }
        ConstraintV::TypeInstantiation(c) => {
            format!(
                "explicitly_specified_constraints {} (typeArguments = {}), (typePackArguments = {})",
                tos_ty(c.function_type, opts),
                crate::functions::dump_to_string_alt_g::dump_vector_type_id(&c.type_arguments),
                crate::functions::dump_to_string_alt_h::dump_vector_type_pack_id(&c.type_pack_arguments)
            )
        }
        ConstraintV::PushType(c) => {
            format!(
                "push_type {} => {}",
                tos_ty(c.expectedType, opts),
                tos_ty(c.targetType, opts)
            )
        }
    }
}