Method add_function_flags

crates/wit-bindgen/src/config.rs:109–149

(
        &mut self,
        resolve: &Resolve,
        key: Option<&WorldKey>,
        name: &str,
        base: &mut FunctionFlags,
    )

    }

    fn add_function_flags(
        &mut self,
        resolve: &Resolve,
        key: Option<&WorldKey>,
        name: &str,
        base: &mut FunctionFlags,
    ) {
        let mut apply_rules = |name: &str, is_exact: bool| {
            for rule in self.rules.iter_mut() {
                if name != rule.filter {
                    continue;
                }
                if !is_exact && rule.flags.contains(FunctionFlags::EXACT) {
                    continue;
                }
                rule.used = true;
                *base |= rule.flags;

                // only the first rule is used.
                return true;
            }

            false
        };
        match key {
            Some(key) => {
                for (lookup, projection) in lookup_keys(resolve, key, LookupItem::Name(name)) {
                    if apply_rules(&lookup, projection.is_empty()) {
                        return;
                    }
                }
            }
            None => {
                if apply_rules(name, true) {
                    return;
                }
            }
        }

        *base |= self.default;
    }

    pub(crate) fn assert_all_rules_used(&self, kind: &str) -> Result<()> {
        let mut unused = Vec::new();