2020-03-26 03:34:28 +00:00
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use crate::extensions::BoxExtension;
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2020-03-03 11:15:18 +00:00
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use crate::registry::Registry;
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2020-04-02 02:21:04 +00:00
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use crate::{InputValueType, Pos, QueryError, Result, Type};
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2020-03-05 07:50:57 +00:00
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use graphql_parser::query::{
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2020-03-06 16:19:22 +00:00
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Directive, Field, FragmentDefinition, SelectionSet, Value, VariableDefinition,
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2020-03-05 07:50:57 +00:00
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};
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2020-03-01 10:54:34 +00:00
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use std::any::{Any, TypeId};
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2020-03-04 03:51:42 +00:00
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use std::collections::{BTreeMap, HashMap};
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2020-03-01 10:54:34 +00:00
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use std::ops::{Deref, DerefMut};
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2020-04-11 09:36:05 +00:00
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use std::path::Path;
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2020-03-26 03:34:28 +00:00
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use std::sync::atomic::AtomicUsize;
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2020-03-01 10:54:34 +00:00
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2020-03-09 10:05:52 +00:00
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/// Variables of query
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2020-03-17 09:26:59 +00:00
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#[derive(Debug, Clone)]
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2020-03-14 03:46:20 +00:00
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pub struct Variables(Value);
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impl Default for Variables {
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fn default() -> Self {
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Self(Value::Object(Default::default()))
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}
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}
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2020-03-01 10:54:34 +00:00
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impl Deref for Variables {
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2020-03-04 03:51:42 +00:00
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type Target = BTreeMap<String, Value>;
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2020-03-01 10:54:34 +00:00
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fn deref(&self) -> &Self::Target {
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2020-03-14 03:46:20 +00:00
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if let Value::Object(obj) = &self.0 {
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obj
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} else {
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unreachable!()
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}
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2020-03-01 10:54:34 +00:00
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}
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}
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2020-03-05 00:39:56 +00:00
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impl DerefMut for Variables {
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fn deref_mut(&mut self) -> &mut Self::Target {
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2020-03-14 03:46:20 +00:00
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if let Value::Object(obj) = &mut self.0 {
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obj
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} else {
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unreachable!()
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}
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2020-03-05 00:39:56 +00:00
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}
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}
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2020-03-04 03:51:42 +00:00
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impl Variables {
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2020-03-20 03:56:08 +00:00
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/// Parse variables from JSON object.
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2020-03-17 09:26:59 +00:00
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pub fn parse_from_json(value: serde_json::Value) -> Result<Self> {
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2020-03-04 03:51:42 +00:00
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let gql_value = json_value_to_gql_value(value);
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2020-03-14 03:46:20 +00:00
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if let Value::Object(_) = gql_value {
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Ok(Variables(gql_value))
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2020-03-04 03:51:42 +00:00
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} else {
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Ok(Default::default())
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}
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}
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2020-03-14 03:46:20 +00:00
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pub(crate) fn set_upload(
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&mut self,
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var_path: &str,
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filename: &str,
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content_type: Option<&str>,
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2020-04-11 09:36:05 +00:00
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path: &Path,
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2020-03-14 03:46:20 +00:00
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) {
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2020-03-21 01:32:13 +00:00
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let mut it = var_path.split('.').peekable();
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2020-03-14 03:46:20 +00:00
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if let Some(first) = it.next() {
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if first != "variables" {
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return;
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}
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}
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let mut current = &mut self.0;
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while let Some(s) = it.next() {
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let has_next = it.peek().is_some();
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if let Ok(idx) = s.parse::<i32>() {
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if let Value::List(ls) = current {
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if let Some(value) = ls.get_mut(idx as usize) {
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if !has_next {
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2020-04-11 09:36:05 +00:00
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*value = Value::String(file_string(filename, content_type, path));
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2020-03-14 03:46:20 +00:00
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return;
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} else {
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current = value;
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}
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} else {
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return;
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}
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}
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2020-03-21 01:32:13 +00:00
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} else if let Value::Object(obj) = current {
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if let Some(value) = obj.get_mut(s) {
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if !has_next {
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2020-04-11 09:36:05 +00:00
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*value = Value::String(file_string(filename, content_type, path));
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2020-03-14 03:46:20 +00:00
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return;
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2020-03-21 01:32:13 +00:00
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} else {
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current = value;
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2020-03-14 03:46:20 +00:00
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}
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2020-03-21 01:32:13 +00:00
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} else {
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return;
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2020-03-14 03:46:20 +00:00
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}
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}
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}
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}
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}
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2020-04-11 09:36:05 +00:00
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fn file_string(filename: &str, content_type: Option<&str>, path: &Path) -> String {
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2020-03-14 03:46:20 +00:00
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if let Some(content_type) = content_type {
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2020-04-11 09:36:05 +00:00
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format!("file:{}:{}|", filename, content_type) + &path.display().to_string()
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2020-03-14 03:46:20 +00:00
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} else {
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2020-04-11 09:36:05 +00:00
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format!("file:{}|", filename) + &path.display().to_string()
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2020-03-14 03:46:20 +00:00
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}
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2020-03-04 03:51:42 +00:00
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}
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fn json_value_to_gql_value(value: serde_json::Value) -> Value {
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match value {
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serde_json::Value::Null => Value::Null,
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serde_json::Value::Bool(n) => Value::Boolean(n),
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serde_json::Value::Number(n) if n.is_f64() => Value::Float(n.as_f64().unwrap()),
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serde_json::Value::Number(n) => Value::Int((n.as_i64().unwrap() as i32).into()),
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serde_json::Value::String(s) => Value::String(s),
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2020-03-21 01:32:13 +00:00
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serde_json::Value::Array(ls) => {
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Value::List(ls.into_iter().map(json_value_to_gql_value).collect())
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}
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2020-03-04 03:51:42 +00:00
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serde_json::Value::Object(obj) => Value::Object(
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obj.into_iter()
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.map(|(name, value)| (name, json_value_to_gql_value(value)))
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.collect(),
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),
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}
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}
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2020-03-01 10:54:34 +00:00
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#[derive(Default)]
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2020-03-31 03:19:18 +00:00
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pub struct Data(BTreeMap<TypeId, Box<dyn Any + Sync + Send>>);
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2020-03-01 10:54:34 +00:00
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impl Data {
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pub fn insert<D: Any + Send + Sync>(&mut self, data: D) {
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self.0.insert(TypeId::of::<D>(), Box::new(data));
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}
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}
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2020-03-20 03:56:08 +00:00
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/// Context for `SelectionSet`
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2020-03-03 03:48:00 +00:00
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pub type ContextSelectionSet<'a> = ContextBase<'a, &'a SelectionSet>;
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2020-03-09 10:05:52 +00:00
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2020-03-20 03:56:08 +00:00
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/// Context object for resolve field
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2020-03-03 03:48:00 +00:00
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pub type Context<'a> = ContextBase<'a, &'a Field>;
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2020-03-01 10:54:34 +00:00
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2020-03-26 03:34:28 +00:00
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/// The query path segment
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#[derive(Clone)]
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2020-03-26 10:30:29 +00:00
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pub enum QueryPathSegment<'a> {
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2020-03-26 03:34:28 +00:00
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/// Index
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Index(usize),
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/// Field name
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2020-03-26 10:30:29 +00:00
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Name(&'a str),
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2020-03-26 03:34:28 +00:00
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}
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2020-03-26 10:30:29 +00:00
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/// The query path node
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#[derive(Clone)]
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pub struct QueryPathNode<'a> {
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/// Parent node
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pub parent: Option<&'a QueryPathNode<'a>>,
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2020-03-26 03:34:28 +00:00
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2020-03-26 10:30:29 +00:00
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/// Current path segment
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pub segment: QueryPathSegment<'a>,
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2020-03-26 03:34:28 +00:00
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}
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2020-03-30 02:45:41 +00:00
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impl<'a> std::fmt::Display for QueryPathNode<'a> {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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let mut first = true;
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self.for_each(|segment| {
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if !first {
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write!(f, ".").ok();
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}
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match segment {
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QueryPathSegment::Index(idx) => {
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write!(f, "{}", *idx).ok();
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}
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QueryPathSegment::Name(name) => {
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write!(f, "{}", name).ok();
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}
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}
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first = false;
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});
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Ok(())
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}
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}
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2020-03-26 10:30:29 +00:00
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impl<'a> QueryPathNode<'a> {
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pub(crate) fn field_name(&self) -> &str {
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let mut p = self;
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loop {
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if let QueryPathSegment::Name(name) = &p.segment {
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return name;
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2020-03-26 03:34:28 +00:00
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}
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2020-03-26 10:30:29 +00:00
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p = p.parent.unwrap();
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2020-03-26 03:34:28 +00:00
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}
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}
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2020-03-26 10:30:29 +00:00
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pub(crate) fn for_each<F: FnMut(&QueryPathSegment<'a>)>(&self, mut f: F) {
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self.for_each_ref(&mut f);
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2020-03-26 03:34:28 +00:00
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}
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2020-03-26 10:30:29 +00:00
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fn for_each_ref<F: FnMut(&QueryPathSegment<'a>)>(&self, f: &mut F) {
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if let Some(parent) = &self.parent {
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parent.for_each_ref(f);
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2020-03-26 03:34:28 +00:00
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}
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2020-03-26 10:30:29 +00:00
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f(&self.segment);
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2020-03-26 03:34:28 +00:00
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}
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2020-04-02 02:21:04 +00:00
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#[doc(hidden)]
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pub fn to_json(&self) -> serde_json::Value {
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let mut path: Vec<serde_json::Value> = Vec::new();
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self.for_each(|segment| {
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path.push(match segment {
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QueryPathSegment::Index(idx) => (*idx).into(),
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QueryPathSegment::Name(name) => (*name).to_string().into(),
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})
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});
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path.into()
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}
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2020-03-26 03:34:28 +00:00
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}
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2020-03-20 03:56:08 +00:00
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/// Query context
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2020-03-25 03:39:28 +00:00
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#[derive(Clone)]
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2020-03-03 03:48:00 +00:00
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pub struct ContextBase<'a, T> {
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2020-04-02 02:21:04 +00:00
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#[allow(missing_docs)]
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pub path_node: Option<QueryPathNode<'a>>,
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2020-03-26 03:34:28 +00:00
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pub(crate) resolve_id: &'a AtomicUsize,
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pub(crate) extensions: &'a [BoxExtension],
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2020-03-01 10:54:34 +00:00
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pub(crate) item: T,
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2020-03-14 03:46:20 +00:00
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pub(crate) variables: &'a Variables,
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2020-04-01 08:53:49 +00:00
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pub(crate) variable_definitions: &'a [VariableDefinition],
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2020-03-03 11:15:18 +00:00
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pub(crate) registry: &'a Registry,
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2020-03-05 00:39:56 +00:00
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pub(crate) data: &'a Data,
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2020-03-31 03:19:18 +00:00
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pub(crate) ctx_data: Option<&'a Data>,
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2020-03-14 03:46:20 +00:00
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pub(crate) fragments: &'a HashMap<String, FragmentDefinition>,
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2020-03-01 10:54:34 +00:00
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}
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2020-03-03 03:48:00 +00:00
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impl<'a, T> Deref for ContextBase<'a, T> {
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2020-03-01 10:54:34 +00:00
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type Target = T;
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fn deref(&self) -> &Self::Target {
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&self.item
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}
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}
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2020-04-06 05:49:39 +00:00
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#[doc(hidden)]
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pub struct Environment {
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pub variables: Variables,
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pub variable_definitions: Vec<VariableDefinition>,
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pub fragments: HashMap<String, FragmentDefinition>,
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}
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impl Environment {
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#[doc(hidden)]
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pub fn create_context<'a, T>(
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&'a self,
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item: T,
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path_node: Option<QueryPathNode<'a>>,
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resolve_id: &'a AtomicUsize,
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registry: &'a Registry,
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data: &'a Data,
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) -> ContextBase<'a, T> {
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ContextBase {
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path_node,
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resolve_id,
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extensions: &[],
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item,
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variables: &self.variables,
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variable_definitions: &self.variable_definitions,
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registry,
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data,
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ctx_data: None,
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fragments: &self.fragments,
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}
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}
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}
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2020-03-03 03:48:00 +00:00
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impl<'a, T> ContextBase<'a, T> {
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2020-04-06 05:49:39 +00:00
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#[doc(hidden)]
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pub fn create_environment(&self) -> Environment {
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Environment {
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variables: self.variables.clone(),
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variable_definitions: self.variable_definitions.to_vec(),
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fragments: self.fragments.clone(),
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}
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}
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2020-03-01 17:15:05 +00:00
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#[doc(hidden)]
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2020-03-26 03:34:28 +00:00
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pub fn get_resolve_id(&self) -> usize {
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self.resolve_id
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.fetch_add(1, std::sync::atomic::Ordering::Relaxed)
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}
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#[doc(hidden)]
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2020-03-26 10:30:29 +00:00
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pub fn with_field(&'a self, field: &'a Field) -> ContextBase<'a, &'a Field> {
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2020-03-26 03:34:28 +00:00
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ContextBase {
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2020-03-26 10:30:29 +00:00
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path_node: Some(QueryPathNode {
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parent: self.path_node.as_ref(),
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segment: QueryPathSegment::Name(
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field
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.alias
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.as_deref()
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.unwrap_or_else(|| field.name.as_str()),
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),
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}),
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2020-03-26 03:34:28 +00:00
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extensions: self.extensions,
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item: field,
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resolve_id: self.resolve_id,
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variables: self.variables,
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variable_definitions: self.variable_definitions,
|
|
|
|
registry: self.registry,
|
|
|
|
data: self.data,
|
2020-03-31 03:19:18 +00:00
|
|
|
ctx_data: self.ctx_data,
|
2020-03-26 03:34:28 +00:00
|
|
|
fragments: self.fragments,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[doc(hidden)]
|
|
|
|
pub fn with_selection_set(
|
|
|
|
&self,
|
|
|
|
selection_set: &'a SelectionSet,
|
|
|
|
) -> ContextBase<'a, &'a SelectionSet> {
|
2020-03-03 03:48:00 +00:00
|
|
|
ContextBase {
|
2020-03-26 10:30:29 +00:00
|
|
|
path_node: self.path_node.clone(),
|
2020-03-26 03:34:28 +00:00
|
|
|
extensions: self.extensions,
|
|
|
|
item: selection_set,
|
|
|
|
resolve_id: self.resolve_id,
|
2020-03-01 10:54:34 +00:00
|
|
|
variables: self.variables,
|
2020-03-04 03:51:42 +00:00
|
|
|
variable_definitions: self.variable_definitions,
|
2020-03-21 01:32:13 +00:00
|
|
|
registry: self.registry,
|
2020-03-05 00:39:56 +00:00
|
|
|
data: self.data,
|
2020-03-31 03:19:18 +00:00
|
|
|
ctx_data: self.ctx_data,
|
2020-03-05 07:50:57 +00:00
|
|
|
fragments: self.fragments,
|
2020-03-01 10:54:34 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-03-31 03:19:18 +00:00
|
|
|
/// Gets the global data defined in the `Context` or `Schema`.
|
2020-03-07 10:03:19 +00:00
|
|
|
pub fn data<D: Any + Send + Sync>(&self) -> &D {
|
2020-03-31 03:19:18 +00:00
|
|
|
self.ctx_data
|
|
|
|
.and_then(|ctx_data| ctx_data.0.get(&TypeId::of::<D>()))
|
|
|
|
.or_else(|| self.data.0.get(&TypeId::of::<D>()))
|
2020-03-05 00:39:56 +00:00
|
|
|
.and_then(|d| d.downcast_ref::<D>())
|
2020-03-07 10:03:19 +00:00
|
|
|
.expect("The specified data type does not exist.")
|
2020-03-01 10:54:34 +00:00
|
|
|
}
|
2020-03-05 07:50:57 +00:00
|
|
|
|
2020-04-02 02:21:04 +00:00
|
|
|
fn var_value(&self, name: &str, pos: Pos) -> Result<Value> {
|
2020-03-10 06:14:09 +00:00
|
|
|
let def = self
|
|
|
|
.variable_definitions
|
2020-04-01 08:53:49 +00:00
|
|
|
.iter()
|
|
|
|
.find(|def| def.name == name);
|
2020-03-10 06:14:09 +00:00
|
|
|
if let Some(def) = def {
|
2020-03-14 03:46:20 +00:00
|
|
|
if let Some(var_value) = self.variables.get(&def.name) {
|
2020-03-10 06:14:09 +00:00
|
|
|
return Ok(var_value.clone());
|
|
|
|
} else if let Some(default) = &def.default_value {
|
|
|
|
return Ok(default.clone());
|
|
|
|
}
|
|
|
|
}
|
2020-03-21 01:32:13 +00:00
|
|
|
Err(QueryError::VarNotDefined {
|
2020-03-10 06:14:09 +00:00
|
|
|
var_name: name.to_string(),
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(pos))
|
2020-03-10 06:14:09 +00:00
|
|
|
}
|
|
|
|
|
2020-04-02 02:21:04 +00:00
|
|
|
fn resolve_input_value(&self, mut value: Value, pos: Pos) -> Result<Value> {
|
2020-03-10 06:14:09 +00:00
|
|
|
match value {
|
2020-04-02 02:21:04 +00:00
|
|
|
Value::Variable(var_name) => self.var_value(&var_name, pos),
|
2020-03-10 06:14:09 +00:00
|
|
|
Value::List(ref mut ls) => {
|
|
|
|
for value in ls {
|
|
|
|
if let Value::Variable(var_name) = value {
|
2020-04-02 02:21:04 +00:00
|
|
|
*value = self.var_value(&var_name, pos)?;
|
2020-03-10 06:14:09 +00:00
|
|
|
}
|
2020-03-04 03:51:42 +00:00
|
|
|
}
|
2020-03-10 06:14:09 +00:00
|
|
|
Ok(value)
|
2020-03-04 03:51:42 +00:00
|
|
|
}
|
2020-03-10 06:14:09 +00:00
|
|
|
Value::Object(ref mut obj) => {
|
2020-03-21 01:32:13 +00:00
|
|
|
for value in obj.values_mut() {
|
2020-03-10 06:14:09 +00:00
|
|
|
if let Value::Variable(var_name) = value {
|
2020-04-02 02:21:04 +00:00
|
|
|
*value = self.var_value(&var_name, pos)?;
|
2020-03-10 06:14:09 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
Ok(value)
|
2020-03-04 03:51:42 +00:00
|
|
|
}
|
2020-03-10 06:14:09 +00:00
|
|
|
_ => Ok(value),
|
2020-03-04 03:51:42 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-03-04 06:24:44 +00:00
|
|
|
#[doc(hidden)]
|
2020-03-05 09:06:14 +00:00
|
|
|
pub fn is_skip(&self, directives: &[Directive]) -> Result<bool> {
|
|
|
|
for directive in directives {
|
2020-03-04 06:24:44 +00:00
|
|
|
if directive.name == "skip" {
|
|
|
|
if let Some(value) = directive
|
|
|
|
.arguments
|
|
|
|
.iter()
|
|
|
|
.find(|(name, _)| name == "if")
|
|
|
|
.map(|(_, value)| value)
|
|
|
|
{
|
2020-04-02 02:21:04 +00:00
|
|
|
let value = self.resolve_input_value(value.clone(), directive.position)?;
|
2020-03-19 09:20:12 +00:00
|
|
|
let res: bool = InputValueType::parse(&value).ok_or_else(|| {
|
2020-03-04 06:24:44 +00:00
|
|
|
QueryError::ExpectedType {
|
|
|
|
expect: bool::qualified_type_name(),
|
|
|
|
actual: value,
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(directive.position)
|
2020-03-04 06:24:44 +00:00
|
|
|
})?;
|
|
|
|
if res {
|
|
|
|
return Ok(true);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
return Err(QueryError::RequiredDirectiveArgs {
|
|
|
|
directive: "@skip",
|
|
|
|
arg_name: "if",
|
|
|
|
arg_type: "Boolean!",
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(directive.position));
|
2020-03-04 06:24:44 +00:00
|
|
|
}
|
|
|
|
} else if directive.name == "include" {
|
|
|
|
if let Some(value) = directive
|
|
|
|
.arguments
|
|
|
|
.iter()
|
|
|
|
.find(|(name, _)| name == "if")
|
|
|
|
.map(|(_, value)| value)
|
|
|
|
{
|
2020-04-02 02:21:04 +00:00
|
|
|
let value = self.resolve_input_value(value.clone(), directive.position)?;
|
2020-03-19 09:20:12 +00:00
|
|
|
let res: bool = InputValueType::parse(&value).ok_or_else(|| {
|
2020-03-04 06:24:44 +00:00
|
|
|
QueryError::ExpectedType {
|
|
|
|
expect: bool::qualified_type_name(),
|
|
|
|
actual: value,
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(directive.position)
|
2020-03-04 06:24:44 +00:00
|
|
|
})?;
|
|
|
|
if !res {
|
|
|
|
return Ok(true);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
return Err(QueryError::RequiredDirectiveArgs {
|
|
|
|
directive: "@include",
|
|
|
|
arg_name: "if",
|
|
|
|
arg_type: "Boolean!",
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(directive.position));
|
2020-03-04 06:24:44 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
return Err(QueryError::UnknownDirective {
|
|
|
|
name: directive.name.clone(),
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(directive.position));
|
2020-03-04 06:24:44 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
Ok(false)
|
|
|
|
}
|
2020-03-01 10:54:34 +00:00
|
|
|
}
|
2020-03-05 09:06:14 +00:00
|
|
|
|
2020-03-26 03:34:28 +00:00
|
|
|
impl<'a> ContextBase<'a, &'a SelectionSet> {
|
|
|
|
#[doc(hidden)]
|
2020-03-26 10:30:29 +00:00
|
|
|
pub fn with_index(&'a self, idx: usize) -> ContextBase<'a, &'a SelectionSet> {
|
2020-03-26 03:34:28 +00:00
|
|
|
ContextBase {
|
2020-03-26 10:30:29 +00:00
|
|
|
path_node: Some(QueryPathNode {
|
|
|
|
parent: self.path_node.as_ref(),
|
|
|
|
segment: QueryPathSegment::Index(idx),
|
|
|
|
}),
|
2020-03-26 03:34:28 +00:00
|
|
|
extensions: self.extensions,
|
|
|
|
item: self.item,
|
|
|
|
resolve_id: self.resolve_id,
|
|
|
|
variables: self.variables,
|
|
|
|
variable_definitions: self.variable_definitions,
|
|
|
|
registry: self.registry,
|
|
|
|
data: self.data,
|
2020-03-31 03:19:18 +00:00
|
|
|
ctx_data: self.ctx_data,
|
2020-03-26 03:34:28 +00:00
|
|
|
fragments: self.fragments,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-03-05 09:06:14 +00:00
|
|
|
impl<'a> ContextBase<'a, &'a Field> {
|
|
|
|
#[doc(hidden)]
|
2020-03-19 09:20:12 +00:00
|
|
|
pub fn param_value<T: InputValueType, F: FnOnce() -> Value>(
|
2020-03-05 09:06:14 +00:00
|
|
|
&self,
|
|
|
|
name: &str,
|
2020-04-02 02:21:04 +00:00
|
|
|
pos: Pos,
|
2020-03-05 13:34:31 +00:00
|
|
|
default: F,
|
2020-03-05 09:06:14 +00:00
|
|
|
) -> Result<T> {
|
|
|
|
match self
|
|
|
|
.arguments
|
|
|
|
.iter()
|
|
|
|
.find(|(n, _)| n == name)
|
|
|
|
.map(|(_, v)| v)
|
|
|
|
.cloned()
|
|
|
|
{
|
|
|
|
Some(value) => {
|
2020-04-02 02:21:04 +00:00
|
|
|
let value = self.resolve_input_value(value, pos)?;
|
2020-03-19 09:20:12 +00:00
|
|
|
let res = InputValueType::parse(&value).ok_or_else(|| {
|
2020-03-05 09:06:14 +00:00
|
|
|
QueryError::ExpectedType {
|
|
|
|
expect: T::qualified_type_name(),
|
|
|
|
actual: value,
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(pos)
|
2020-03-05 09:06:14 +00:00
|
|
|
})?;
|
|
|
|
Ok(res)
|
|
|
|
}
|
2020-03-05 13:34:31 +00:00
|
|
|
None => {
|
2020-03-05 09:06:14 +00:00
|
|
|
let value = default();
|
2020-03-19 09:20:12 +00:00
|
|
|
let res = InputValueType::parse(&value).ok_or_else(|| {
|
2020-03-05 09:06:14 +00:00
|
|
|
QueryError::ExpectedType {
|
|
|
|
expect: T::qualified_type_name(),
|
|
|
|
actual: value.clone(),
|
|
|
|
}
|
2020-04-02 02:21:04 +00:00
|
|
|
.into_error(pos)
|
2020-03-05 09:06:14 +00:00
|
|
|
})?;
|
|
|
|
Ok(res)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2020-03-06 15:58:43 +00:00
|
|
|
|
2020-03-07 03:27:44 +00:00
|
|
|
#[doc(hidden)]
|
2020-03-26 03:34:28 +00:00
|
|
|
pub fn result_name(&self) -> &str {
|
2020-03-26 10:30:29 +00:00
|
|
|
self.item
|
|
|
|
.alias
|
|
|
|
.as_deref()
|
|
|
|
.unwrap_or_else(|| self.item.name.as_str())
|
2020-03-06 15:58:43 +00:00
|
|
|
}
|
2020-03-05 09:06:14 +00:00
|
|
|
}
|