harn-hostlib 0.8.126

Opt-in code-intelligence and deterministic-tool host builtins for the Harn VM
Documentation 
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//! Helpers for assembling [`VmValue::Dict`] response bodies that match the
//! `schemas/tools/<method>.response.json` contracts.

use std::sync::Arc;

use harn_vm::VmValue;

/// Type-erased builder for the dict that becomes a tool's response.
#[derive(Default)]
pub(crate) struct ResponseBuilder {
    inner: harn_vm::value::DictMap,
}

impl ResponseBuilder {
    pub(crate) fn new() -> Self {
        Self {
            inner: harn_vm::value::DictMap::new(),
        }
    }

    pub(crate) fn str(mut self, key: &str, value: impl Into<String>) -> Self {
        self.inner.insert(
            harn_vm::value::intern_key(key),
            VmValue::String(arcstr::ArcStr::from(value.into())),
        );
        self
    }

    pub(crate) fn int(mut self, key: &str, value: i64) -> Self {
        self.inner
            .insert(harn_vm::value::intern_key(key), VmValue::Int(value));
        self
    }

    pub(crate) fn bool(mut self, key: &str, value: bool) -> Self {
        self.inner
            .insert(harn_vm::value::intern_key(key), VmValue::Bool(value));
        self
    }

    pub(crate) fn opt_str(mut self, key: &str, value: Option<impl Into<String>>) -> Self {
        match value {
            Some(v) => {
                self.inner.insert(
                    harn_vm::value::intern_key(key),
                    VmValue::String(arcstr::ArcStr::from(v.into())),
                );
            }
            None => {
                self.inner
                    .insert(harn_vm::value::intern_key(key), VmValue::Nil);
            }
        }
        self
    }

    pub(crate) fn nil(mut self, key: &str) -> Self {
        self.inner
            .insert(harn_vm::value::intern_key(key), VmValue::Nil);
        self
    }

    pub(crate) fn dict(mut self, key: &str, value: harn_vm::value::DictMap) -> Self {
        self.inner
            .insert(harn_vm::value::intern_key(key), VmValue::dict(value));
        self
    }

    pub(crate) fn list(mut self, key: &str, value: Vec<VmValue>) -> Self {
        self.inner.insert(
            harn_vm::value::intern_key(key),
            VmValue::List(Arc::new(value)),
        );
        self
    }

    pub(crate) fn build(self) -> VmValue {
        VmValue::dict(self.inner)
    }
}