summaryrefslogtreecommitdiff
path: root/dhall/src/phase
diff options
context:
space:
mode:
Diffstat (limited to 'dhall/src/phase')
-rw-r--r--dhall/src/phase/binary.rs17
-rw-r--r--dhall/src/phase/mod.rs8
-rw-r--r--dhall/src/phase/resolve.rs11
-rw-r--r--dhall/src/phase/typecheck.rs114
4 files changed, 25 insertions, 125 deletions
diff --git a/dhall/src/phase/binary.rs b/dhall/src/phase/binary.rs
index 9c31d4c..30aa7a0 100644
--- a/dhall/src/phase/binary.rs
+++ b/dhall/src/phase/binary.rs
@@ -1,14 +1,15 @@
-use dhall_syntax::*;
-use itertools::*;
+use itertools::Itertools;
use serde_cbor::value::value as cbor;
-type ParsedExpr = SubExpr<X, Import>;
+use dhall_syntax::{
+ rc, ExprF, FilePrefix, Hash, Import, ImportHashed, ImportLocation,
+ ImportMode, Integer, InterpolatedText, Label, Natural, Scheme, SubExpr,
+ URL, V, X,
+};
-#[derive(Debug)]
-pub enum DecodeError {
- CBORError(serde_cbor::error::Error),
- WrongFormatError(String),
-}
+use crate::error::DecodeError;
+
+type ParsedExpr = SubExpr<X, Import>;
pub fn decode(data: &[u8]) -> Result<ParsedExpr, DecodeError> {
match serde_cbor::de::from_slice(data) {
diff --git a/dhall/src/phase/mod.rs b/dhall/src/phase/mod.rs
index 0b6eca6..4262dc1 100644
--- a/dhall/src/phase/mod.rs
+++ b/dhall/src/phase/mod.rs
@@ -4,13 +4,11 @@ use std::path::Path;
use dhall_syntax::{Const, Import, Span, SubExpr, X};
-use crate::error::Error;
+use crate::error::{Error, ImportError, TypeError, TypeMessage};
use normalize::{AlphaVar, Thunk, Value};
-use resolve::{ImportError, ImportRoot};
-use typecheck::{
- const_to_typed, type_of_const, TypeError, TypeMessage, TypecheckContext,
-};
+use resolve::ImportRoot;
+use typecheck::{const_to_typed, type_of_const, TypecheckContext};
pub(crate) mod binary;
pub(crate) mod normalize;
diff --git a/dhall/src/phase/resolve.rs b/dhall/src/phase/resolve.rs
index afb49cb..5ab03ac 100644
--- a/dhall/src/phase/resolve.rs
+++ b/dhall/src/phase/resolve.rs
@@ -3,16 +3,9 @@ use std::path::{Path, PathBuf};
use dhall_syntax::Import;
-use crate::error::Error;
+use crate::error::{Error, ImportError};
use crate::phase::{Normalized, Parsed, Resolved};
-#[derive(Debug)]
-pub enum ImportError {
- Recursive(Import, Box<Error>),
- UnexpectedImport(Import),
- ImportCycle(ImportStack, Import),
-}
-
/// A root from which to resolve relative imports.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum ImportRoot {
@@ -21,7 +14,7 @@ pub enum ImportRoot {
type ImportCache = HashMap<Import, Normalized>;
-type ImportStack = Vec<Import>;
+pub(crate) type ImportStack = Vec<Import>;
fn resolve_import(
import: &Import,
diff --git a/dhall/src/phase/typecheck.rs b/dhall/src/phase/typecheck.rs
index 6b12077..aee9892 100644
--- a/dhall/src/phase/typecheck.rs
+++ b/dhall/src/phase/typecheck.rs
@@ -2,19 +2,20 @@
use std::borrow::Borrow;
use std::borrow::Cow;
use std::collections::BTreeMap;
-use std::fmt;
+use dhall_proc_macros as dhall;
+use dhall_syntax::context::Context;
+use dhall_syntax::{
+ rc, Builtin, Const, Expr, ExprF, InterpolatedTextContents, Label, Span,
+ SubExpr, V, X,
+};
+
+use crate::error::{TypeError, TypeMessage};
use crate::phase::normalize::{
AlphaVar, NormalizationContext, Thunk, TypeThunk, Value,
};
-use crate::phase::*;
+use crate::phase::{Normalized, Resolved, Type, TypeInternal, Typed};
use crate::traits::DynamicType;
-use dhall_proc_macros as dhall;
-use dhall_syntax;
-use dhall_syntax::context::Context;
-use dhall_syntax::*;
-
-use self::TypeMessage::*;
impl TypeThunk {
fn to_type(&self, ctx: &TypecheckContext) -> Result<Type, TypeError> {
@@ -244,6 +245,7 @@ pub(crate) enum TypeIntermediate {
impl TypeIntermediate {
fn typecheck(self) -> Result<Typed, TypeError> {
+ use crate::error::TypeMessage::*;
let mkerr = |ctx, msg| TypeError::new(ctx, msg);
Ok(match &self {
TypeIntermediate::Pi(ctx, x, ta, tb) => {
@@ -503,6 +505,7 @@ fn type_last_layer(
ctx: &TypecheckContext,
e: ExprF<Typed, Label, Normalized>,
) -> Result<Ret, TypeError> {
+ use crate::error::TypeMessage::*;
use dhall_syntax::BinOp::*;
use dhall_syntax::Builtin::*;
use dhall_syntax::ExprF::*;
@@ -801,101 +804,6 @@ pub(crate) fn skip_typecheck(e: Resolved) -> Typed {
Typed::from_thunk_untyped(Thunk::new(NormalizationContext::new(), e.0))
}
-/// The specific type error
-#[derive(Debug)]
-pub(crate) enum TypeMessage {
- UnboundVariable(V<Label>),
- InvalidInputType(Normalized),
- InvalidOutputType(Normalized),
- NotAFunction(Typed),
- TypeMismatch(Typed, Normalized, Typed),
- AnnotMismatch(Typed, Normalized),
- Untyped,
- InvalidListElement(usize, Normalized, Typed),
- InvalidListType(Normalized),
- InvalidOptionalType(Normalized),
- InvalidPredicate(Typed),
- IfBranchMismatch(Typed, Typed),
- IfBranchMustBeTerm(bool, Typed),
- InvalidFieldType(Label, Type),
- NotARecord(Label, Normalized),
- MissingRecordField(Label, Typed),
- MissingUnionField(Label, Normalized),
- BinOpTypeMismatch(BinOp, Typed),
- NoDependentTypes(Normalized, Normalized),
- InvalidTextInterpolation(Typed),
- Sort,
- Unimplemented,
-}
-
-/// A structured type error that includes context
-#[derive(Debug)]
-pub struct TypeError {
- type_message: TypeMessage,
- context: TypecheckContext,
-}
-
-impl TypeError {
- pub(crate) fn new(
- context: &TypecheckContext,
- type_message: TypeMessage,
- ) -> Self {
- TypeError {
- context: context.clone(),
- type_message,
- }
- }
-}
-
-impl From<TypeError> for std::option::NoneError {
- fn from(_: TypeError) -> std::option::NoneError {
- std::option::NoneError
- }
-}
-
-impl ::std::error::Error for TypeMessage {
- fn description(&self) -> &str {
- match *self {
- // UnboundVariable => "Unbound variable",
- InvalidInputType(_) => "Invalid function input",
- InvalidOutputType(_) => "Invalid function output",
- NotAFunction(_) => "Not a function",
- TypeMismatch(_, _, _) => "Wrong type of function argument",
- _ => "Unhandled error",
- }
- }
-}
-
-impl fmt::Display for TypeMessage {
- fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
- match self {
- // UnboundVariable(_) => {
- // f.write_str(include_str!("errors/UnboundVariable.txt"))
- // }
- // TypeMismatch(e0, e1, e2) => {
- // let template = include_str!("errors/TypeMismatch.txt");
- // let s = template
- // .replace("$txt0", &format!("{}", e0.as_expr()))
- // .replace("$txt1", &format!("{}", e1.as_expr()))
- // .replace("$txt2", &format!("{}", e2.as_expr()))
- // .replace(
- // "$txt3",
- // &format!(
- // "{}",
- // e2.get_type()
- // .unwrap()
- // .as_normalized()
- // .unwrap()
- // .as_expr()
- // ),
- // );
- // f.write_str(&s)
- // }
- _ => f.write_str("Unhandled error message"),
- }
- }
-}
-
#[cfg(test)]
mod spec_tests {
#![rustfmt::skip]
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 00:36:22 +0000