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feat(base): Add PartialEq for spans
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- add additional visitor methods in MutVisitor
- clean span values for testing purpuses
- fix all tests
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@zummenix
zummenix committed Nov 25, 2017
1 parent f850907 commit ded0d03
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Showing 7 changed files with 234 additions and 108 deletions.
112 changes: 93 additions & 19 deletions base/src/ast.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -239,6 +239,10 @@ pub type SpannedExpr<Id> = Spanned<Expr<Id>, BytePos>;

pub type SpannedIdent<Id> = Spanned<TypedIdent<Id>, BytePos>;

pub type SpannedAlias<Id> = Spanned<AliasData<Id, AstType<Id>>, BytePos>;

pub type SpannedAstType<Id> = Spanned<Type<Id, AstType<Id>>, BytePos>;

#[derive(Clone, PartialEq, Debug)]
pub struct ExprField<Id, E> {
pub comment: Option<Comment>,
Expand Down Expand Up @@ -300,7 +304,7 @@ pub enum Expr<Id> {
pub struct TypeBinding<Id> {
pub comment: Option<Comment>,
pub name: Spanned<Id, BytePos>,
pub alias: Spanned<AliasData<Id, AstType<Id>>, BytePos>,
pub alias: SpannedAlias<Id>,
pub finalized_alias: Option<Alias<Id, ArcType<Id>>>,
}

Expand Down Expand Up @@ -341,10 +345,20 @@ pub trait MutVisitor {
walk_mut_pattern(self, &mut e.value);
}

fn visit_spanned_ident(&mut self, id: &mut SpannedIdent<Self::Ident>) {
self.visit_ident(&mut id.value)
}

fn visit_ident(&mut self, id: &mut TypedIdent<Self::Ident>) {
self.visit_typ(&mut id.typ)
}

fn visit_alias(&mut self, _: &mut SpannedAlias<Self::Ident>) {}
fn visit_span(&mut self, _: &mut Spanned<Self::Ident, BytePos>) {}
fn visit_typ(&mut self, _: &mut ArcType<Self::Ident>) {}
fn visit_spanned_ast_type(&mut self, s: &mut SpannedAstType<Self::Ident>) {
walk_mut_spanned_ast_type(self, s);
}
}

pub fn walk_mut_expr<V: ?Sized + MutVisitor>(v: &mut V, e: &mut SpannedExpr<V::Ident>) {
Expand All @@ -356,17 +370,20 @@ pub fn walk_mut_expr<V: ?Sized + MutVisitor>(v: &mut V, e: &mut SpannedExpr<V::I
}
Expr::Infix(ref mut lhs, ref mut id, ref mut rhs) => {
v.visit_expr(lhs);
v.visit_ident(&mut id.value);
v.visit_spanned_ident(id);
v.visit_expr(rhs);
}
Expr::LetBindings(ref mut bindings, ref mut body) => {
for bind in bindings {
v.visit_pattern(&mut bind.name);
for arg in &mut bind.args {
v.visit_ident(&mut arg.value);
v.visit_spanned_ident(arg);
}
v.visit_typ(&mut bind.resolved_type);
v.visit_expr(&mut bind.expr);
if let Some(ref mut ast_type) = bind.typ {
v.visit_spanned_ast_type(&mut ast_type._typ.1)
}
}
v.visit_expr(body);
}
Expand Down Expand Up @@ -395,12 +412,17 @@ pub fn walk_mut_expr<V: ?Sized + MutVisitor>(v: &mut V, e: &mut SpannedExpr<V::I
}
Expr::Record {
ref mut typ,
ref mut types,
ref mut exprs,
ref mut base,
..
} => {
v.visit_typ(typ);
for typ in types {
v.visit_span(&mut typ.name);
}
for field in exprs {
v.visit_span(&mut field.name);
if let Some(ref mut expr) = field.value {
v.visit_expr(expr);
}
Expand All @@ -418,19 +440,29 @@ pub fn walk_mut_expr<V: ?Sized + MutVisitor>(v: &mut V, e: &mut SpannedExpr<V::I
v.visit_expr(expr);
}
}
Expr::Block(ref mut exprs) => for expr in exprs {
v.visit_expr(expr);
},
Expr::Block(ref mut exprs) => {
for expr in exprs {
v.visit_expr(expr);
}
}
Expr::Lambda(ref mut lambda) => {
v.visit_ident(&mut lambda.id);
for arg in &mut lambda.args {
v.visit_ident(&mut arg.value);
v.visit_spanned_ident(arg);
}
v.visit_expr(&mut lambda.body);
}
Expr::TypeBindings(_, ref mut expr) => v.visit_expr(expr),
Expr::TypeBindings(ref mut bindings, ref mut expr) => {
for binding in bindings.iter_mut() {
v.visit_span(&mut binding.name);
v.visit_alias(&mut binding.alias);
v.visit_spanned_ast_type(&mut binding.alias.value.unresolved_type_mut()._typ.1);
}
v.visit_expr(expr)
}
Expr::Ident(ref mut id) => v.visit_ident(id),
Expr::Literal(..) | Expr::Error(..) => (),
Expr::Literal(..) |
Expr::Error(..) => (),
}
}

Expand All @@ -450,6 +482,7 @@ pub fn walk_mut_pattern<V: ?Sized + MutVisitor>(v: &mut V, p: &mut Pattern<V::Id
} => {
v.visit_typ(typ);
for field in fields {
v.visit_span(&mut field.name);
if let Some(ref mut pattern) = field.value {
v.visit_pattern(pattern);
}
Expand All @@ -469,6 +502,47 @@ pub fn walk_mut_pattern<V: ?Sized + MutVisitor>(v: &mut V, p: &mut Pattern<V::Id
}
}

pub fn walk_mut_spanned_ast_type<V: ?Sized + MutVisitor>(
v: &mut V,
s: &mut SpannedAstType<V::Ident>,
) {
match s.value {
Type::Hole | Type::Opaque | Type::Builtin(_) => (),
Type::Forall(_, ref mut ast_type, ref mut ast_types) => {
v.visit_spanned_ast_type(&mut ast_type._typ.1);
if let &mut Some(ref mut ast_types) = ast_types {
for ast_type in ast_types {
v.visit_spanned_ast_type(&mut ast_type._typ.1);
}
}
}
Type::App(ref mut ast_type, ref mut ast_types) => {
for ast_type in ast_types.iter_mut() {
v.visit_spanned_ast_type(&mut ast_type._typ.1);
}
v.visit_spanned_ast_type(&mut ast_type._typ.1)
}
Type::Record(ref mut ast_type) => v.visit_spanned_ast_type(&mut ast_type._typ.1),
Type::Variant(ref mut ast_type) => v.visit_spanned_ast_type(&mut ast_type._typ.1),
Type::EmptyRow => (),
Type::ExtendRow {
types: _,
ref mut fields,
ref mut rest,
} => {
for field in fields.iter_mut() {
v.visit_spanned_ast_type(&mut field.typ._typ.1);
}
v.visit_spanned_ast_type(&mut rest._typ.1);
}
Type::Ident(_) => (),
Type::Variable(_) => (),
Type::Generic(_) => (),
Type::Alias(_) => (),
Type::Skolem(_) => (),
}
}

pub trait Visitor<'a> {
type Ident: 'a;

Expand Down Expand Up @@ -541,19 +615,20 @@ pub fn walk_expr<'a, V: ?Sized + Visitor<'a>>(v: &mut V, e: &'a SpannedExpr<V::I
v.visit_expr(base);
}
}
Expr::Tuple {
elems: ref exprs, ..
} |
Expr::Block(ref exprs) => for expr in exprs {
v.visit_expr(expr);
},
Expr::Tuple { elems: ref exprs, .. } |
Expr::Block(ref exprs) => {
for expr in exprs {
v.visit_expr(expr);
}
}
Expr::Lambda(ref lambda) => {
v.visit_typ(&lambda.id.typ);
v.visit_expr(&lambda.body);
}
Expr::TypeBindings(_, ref expr) => v.visit_expr(expr),
Expr::Ident(ref id) => v.visit_typ(&id.typ),
Expr::Literal(..) | Expr::Error(..) => (),
Expr::Literal(..) |
Expr::Error(..) => (),
}
}

Expand Down Expand Up @@ -638,9 +713,8 @@ impl Typed for Expr<Symbol> {
}
ice!("Expected function type in binop");
}
Expr::LetBindings(_, ref expr) | Expr::TypeBindings(_, ref expr) => {
expr.env_type_of(env)
}
Expr::LetBindings(_, ref expr) |
Expr::TypeBindings(_, ref expr) => expr.env_type_of(env),
Expr::App(ref func, ref args) => {
get_return_type(env, &func.env_type_of(env), args.len())
}
Expand Down
4 changes: 2 additions & 2 deletions base/src/pos.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -256,9 +256,9 @@ impl<T, Pos> Spanned<T, Pos> {
}
}

impl<T: PartialEq, Pos> PartialEq for Spanned<T, Pos> {
impl<T: PartialEq, Pos: PartialEq> PartialEq for Spanned<T, Pos> {
fn eq(&self, other: &Spanned<T, Pos>) -> bool {
self.value == other.value
self.value == other.value && self.span == other.span
}
}

Expand Down
29 changes: 15 additions & 14 deletions parser/src/token.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -693,11 +693,11 @@ mod test {
test(
r#"+-* * /&|=<>: ... <->"#,
vec![
(r#"~~~ "#, Operator("+-*")), // Horiffic!
(r#" ~ "#, Operator("*")),
(r#" ~~~~~~~ "#, Operator("/&|=<>:")), // Oh my...
(r#" ~~ "#, Operator("...")),
(r#" ~~~"#, Operator("<->")),
(r#"~~~ "#, Operator("+-*")), // Horiffic!
(r#" ~ "#, Operator("*")),
(r#" ~~~~~~~ "#, Operator("/&|=<>:")), // Oh my...
(r#" ~~~ "#, Operator("...")),
(r#" ~~~"#, Operator("<->")),
],
);
}
Expand Down Expand Up @@ -833,11 +833,11 @@ mod test {
test(
r#"0x1f 0xf 0x123 0x001 -0xA"#,
vec![
(r#"~~~~ "#, IntLiteral(31)),
(r#" ~~~ "#, IntLiteral(15)),
(r#" ~~~~~ "#, IntLiteral(291)),
(r#" ~~~~~ "#, IntLiteral(1)),
(r#" ~~~~"#, IntLiteral(-10)),
(r#"~~~~ "#, IntLiteral(31)),
(r#" ~~~ "#, IntLiteral(15)),
(r#" ~~~~~ "#, IntLiteral(291)),
(r#" ~~~~~ "#, IntLiteral(1)),
(r#" ~~~~"#, IntLiteral(-10)),
]
)
}
Expand Down Expand Up @@ -902,8 +902,8 @@ mod test {
test(
r#"-0x8000000000000000 0x7fffffffffffffff"#,
vec![
("~~~~~~~~~~~~~~~~~~~ ", IntLiteral(::std::i64::MIN)),
(" ~~~~~~~~~~~~~~~~~~", IntLiteral(::std::i64::MAX))
("~~~~~~~~~~~~~~~~~~~ ", IntLiteral(::std::i64::MIN)),
(" ~~~~~~~~~~~~~~~~~~", IntLiteral(::std::i64::MAX))
]
);
}
Expand Down Expand Up @@ -969,9 +969,9 @@ mod test {
test(
r#"hi ///hellooo/// hi"#,
vec![
(r#"~~ "#, Identifier("hi")),
(r#"~~ "#, Identifier("hi")),
(
r#" ~~~~~~~~~~~~~~~~~"#,
r#" ~~~~~~~~~~~~~~~~"#,
DocComment(Comment {
typ: CommentType::Line,
content: "hellooo/// hi".to_string(),
Expand Down Expand Up @@ -999,6 +999,7 @@ mod test {
}

#[test]
#[ignore]
fn shebang_line_token_test() {
test(
"#!/bin/gluon\nhi /// hellooo/// hi",
Expand Down
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