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Merge pull request #19171 from ShoyuVanilla/migrate-de-morgan-assist
internal: Migrate `apply_demorgan` to `SyntaxEditor`
Lukas Wirth 2025-02-24
parent 93bd36d · parent a0b9931 · commit f6edb71
-rw-r--r--crates/ide-assists/src/handlers/add_missing_match_arms.rs49
-rw-r--r--crates/ide-assists/src/handlers/apply_demorgan.rs120
-rw-r--r--crates/ide-assists/src/handlers/convert_bool_then.rs4
-rw-r--r--crates/ide-assists/src/handlers/convert_to_guarded_return.rs4
-rw-r--r--crates/ide-assists/src/handlers/convert_while_to_loop.rs4
-rw-r--r--crates/ide-assists/src/handlers/invert_if.rs4
-rw-r--r--crates/ide-assists/src/utils.rs78
-rw-r--r--crates/syntax/src/ast/make.rs2
-rw-r--r--crates/syntax/src/ast/syntax_factory.rs5
-rw-r--r--crates/syntax/src/ast/syntax_factory/constructors.rs156
10 files changed, 351 insertions, 75 deletions
diff --git a/crates/ide-assists/src/handlers/add_missing_match_arms.rs b/crates/ide-assists/src/handlers/add_missing_match_arms.rs
index 4a9e2256e9..37f5f44dfa 100644
--- a/crates/ide-assists/src/handlers/add_missing_match_arms.rs
+++ b/crates/ide-assists/src/handlers/add_missing_match_arms.rs
@@ -76,6 +76,8 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
let cfg = ctx.config.import_path_config();
+ let make = SyntaxFactory::new();
+
let module = ctx.sema.scope(expr.syntax())?.module();
let (mut missing_pats, is_non_exhaustive, has_hidden_variants): (
Peekable<Box<dyn Iterator<Item = (ast::Pat, bool)>>>,
@@ -93,7 +95,7 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
.into_iter()
.filter_map(|variant| {
Some((
- build_pat(ctx, module, variant, cfg)?,
+ build_pat(ctx, &make, module, variant, cfg)?,
variant.should_be_hidden(ctx.db(), module.krate()),
))
})
@@ -144,10 +146,11 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
let is_hidden = variants
.iter()
.any(|variant| variant.should_be_hidden(ctx.db(), module.krate()));
- let patterns =
- variants.into_iter().filter_map(|variant| build_pat(ctx, module, variant, cfg));
+ let patterns = variants
+ .into_iter()
+ .filter_map(|variant| build_pat(ctx, &make, module, variant, cfg));
- (ast::Pat::from(make::tuple_pat(patterns)), is_hidden)
+ (ast::Pat::from(make.tuple_pat(patterns)), is_hidden)
})
.filter(|(variant_pat, _)| is_variant_missing(&top_lvl_pats, variant_pat));
(
@@ -176,9 +179,11 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
let is_hidden = variants
.iter()
.any(|variant| variant.should_be_hidden(ctx.db(), module.krate()));
- let patterns =
- variants.into_iter().filter_map(|variant| build_pat(ctx, module, variant, cfg));
- (ast::Pat::from(make::slice_pat(patterns)), is_hidden)
+ let patterns = variants
+ .into_iter()
+ .filter_map(|variant| build_pat(ctx, &make, module, variant, cfg));
+
+ (ast::Pat::from(make.slice_pat(patterns)), is_hidden)
})
.filter(|(variant_pat, _)| is_variant_missing(&top_lvl_pats, variant_pat));
(
@@ -203,8 +208,6 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
"Fill match arms",
ctx.sema.original_range(match_expr.syntax()).range,
|builder| {
- let make = SyntaxFactory::new();
-
// having any hidden variants means that we need a catch-all arm
needs_catch_all_arm |= has_hidden_variants;
@@ -243,7 +246,7 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
if needs_catch_all_arm && !has_catch_all_arm {
cov_mark::hit!(added_wildcard_pattern);
- let arm = make.match_arm(make::wildcard_pat().into(), None, make::ext::expr_todo());
+ let arm = make.match_arm(make.wildcard_pat().into(), None, make::ext::expr_todo());
arms.push(arm);
}
@@ -290,7 +293,7 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
}
}
- editor.add_mappings(make.finish_with_mappings());
+ editor.add_mappings(make.take());
builder.add_file_edits(ctx.file_id(), editor);
},
)
@@ -445,6 +448,7 @@ fn resolve_array_of_enum_def(
fn build_pat(
ctx: &AssistContext<'_>,
+ make: &SyntaxFactory,
module: hir::Module,
var: ExtendedVariant,
cfg: ImportPathConfig,
@@ -455,31 +459,32 @@ fn build_pat(
let edition = module.krate().edition(db);
let path = mod_path_to_ast(&module.find_path(db, ModuleDef::from(var), cfg)?, edition);
let fields = var.fields(db);
- let pat = match var.kind(db) {
+ let pat: ast::Pat = match var.kind(db) {
hir::StructKind::Tuple => {
let mut name_generator = suggest_name::NameGenerator::new();
let pats = fields.into_iter().map(|f| {
let name = name_generator.for_type(&f.ty(db), db, edition);
match name {
- Some(name) => make::ext::simple_ident_pat(make::name(&name)).into(),
- None => make::wildcard_pat().into(),
+ Some(name) => make::ext::simple_ident_pat(make.name(&name)).into(),
+ None => make.wildcard_pat().into(),
}
});
- make::tuple_struct_pat(path, pats).into()
+ make.tuple_struct_pat(path, pats).into()
}
hir::StructKind::Record => {
- let pats = fields
+ let fields = fields
.into_iter()
- .map(|f| make::name(f.name(db).as_str()))
- .map(|name| make::ext::simple_ident_pat(name).into());
- make::record_pat(path, pats).into()
+ .map(|f| make.name_ref(f.name(db).as_str()))
+ .map(|name_ref| make.record_pat_field_shorthand(name_ref));
+ let fields = make.record_pat_field_list(fields, None);
+ make.record_pat_with_fields(path, fields).into()
}
- hir::StructKind::Unit => make::path_pat(path),
+ hir::StructKind::Unit => make.path_pat(path),
};
Some(pat)
}
- ExtendedVariant::True => Some(ast::Pat::from(make::literal_pat("true"))),
- ExtendedVariant::False => Some(ast::Pat::from(make::literal_pat("false"))),
+ ExtendedVariant::True => Some(ast::Pat::from(make.literal_pat("true"))),
+ ExtendedVariant::False => Some(ast::Pat::from(make.literal_pat("false"))),
}
}
diff --git a/crates/ide-assists/src/handlers/apply_demorgan.rs b/crates/ide-assists/src/handlers/apply_demorgan.rs
index 491727a30a..83c049d461 100644
--- a/crates/ide-assists/src/handlers/apply_demorgan.rs
+++ b/crates/ide-assists/src/handlers/apply_demorgan.rs
@@ -3,12 +3,12 @@ use std::collections::VecDeque;
use ide_db::{
assists::GroupLabel,
famous_defs::FamousDefs,
- source_change::SourceChangeBuilder,
syntax_helpers::node_ext::{for_each_tail_expr, walk_expr},
};
use syntax::{
- ast::{self, make, AstNode, Expr::BinExpr, HasArgList},
- ted, SyntaxKind, T,
+ ast::{self, syntax_factory::SyntaxFactory, AstNode, Expr::BinExpr, HasArgList},
+ syntax_editor::{Position, SyntaxEditor},
+ SyntaxKind, SyntaxNode, T,
};
use crate::{utils::invert_boolean_expression, AssistContext, AssistId, AssistKind, Assists};
@@ -58,9 +58,12 @@ pub(crate) fn apply_demorgan(acc: &mut Assists, ctx: &AssistContext<'_>) -> Opti
_ => return None,
};
- let demorganed = bin_expr.clone_subtree().clone_for_update();
+ let make = SyntaxFactory::new();
+
+ let demorganed = bin_expr.clone_subtree();
+ let mut editor = SyntaxEditor::new(demorganed.syntax().clone());
+ editor.replace(demorganed.op_token()?, make.token(inv_token));
- ted::replace(demorganed.op_token()?, ast::make::token(inv_token));
let mut exprs = VecDeque::from([
(bin_expr.lhs()?, demorganed.lhs()?),
(bin_expr.rhs()?, demorganed.rhs()?),
@@ -70,35 +73,39 @@ pub(crate) fn apply_demorgan(acc: &mut Assists, ctx: &AssistContext<'_>) -> Opti
if let BinExpr(bin_expr) = &expr {
if let BinExpr(cbin_expr) = &dm {
if op == bin_expr.op_kind()? {
- ted::replace(cbin_expr.op_token()?, ast::make::token(inv_token));
+ editor.replace(cbin_expr.op_token()?, make.token(inv_token));
exprs.push_back((bin_expr.lhs()?, cbin_expr.lhs()?));
exprs.push_back((bin_expr.rhs()?, cbin_expr.rhs()?));
} else {
- let mut inv = invert_boolean_expression(expr);
- if inv.needs_parens_in(dm.syntax().parent()?) {
- inv = ast::make::expr_paren(inv).clone_for_update();
+ let mut inv = invert_boolean_expression(&make, expr);
+ if needs_parens_in_place_of(&inv, &dm.syntax().parent()?, &dm) {
+ inv = make.expr_paren(inv).into();
}
- ted::replace(dm.syntax(), inv.syntax());
+ editor.replace(dm.syntax(), inv.syntax());
}
} else {
return None;
}
} else {
- let mut inv = invert_boolean_expression(dm.clone_subtree()).clone_for_update();
- if inv.needs_parens_in(dm.syntax().parent()?) {
- inv = ast::make::expr_paren(inv).clone_for_update();
+ let mut inv = invert_boolean_expression(&make, dm.clone());
+ if needs_parens_in_place_of(&inv, &dm.syntax().parent()?, &dm) {
+ inv = make.expr_paren(inv).into();
}
- ted::replace(dm.syntax(), inv.syntax());
+ editor.replace(dm.syntax(), inv.syntax());
}
}
+ editor.add_mappings(make.finish_with_mappings());
+ let edit = editor.finish();
+ let demorganed = ast::Expr::cast(edit.new_root().clone())?;
+
acc.add_group(
&GroupLabel("Apply De Morgan's law".to_owned()),
AssistId("apply_demorgan", AssistKind::RefactorRewrite),
"Apply De Morgan's law",
op_range,
- |edit| {
- let demorganed = ast::Expr::BinExpr(demorganed);
+ |builder| {
+ let make = SyntaxFactory::new();
let paren_expr = bin_expr.syntax().parent().and_then(ast::ParenExpr::cast);
let neg_expr = paren_expr
.clone()
@@ -107,24 +114,32 @@ pub(crate) fn apply_demorgan(acc: &mut Assists, ctx: &AssistContext<'_>) -> Opti
.filter(|prefix_expr| matches!(prefix_expr.op_kind(), Some(ast::UnaryOp::Not)))
.map(ast::Expr::PrefixExpr);
+ let mut editor;
if let Some(paren_expr) = paren_expr {
if let Some(neg_expr) = neg_expr {
cov_mark::hit!(demorgan_double_negation);
let parent = neg_expr.syntax().parent();
+ editor = builder.make_editor(neg_expr.syntax());
if parent.is_some_and(|parent| demorganed.needs_parens_in(parent)) {
cov_mark::hit!(demorgan_keep_parens_for_op_precedence2);
- edit.replace_ast(neg_expr, make::expr_paren(demorganed));
+ editor.replace(neg_expr.syntax(), make.expr_paren(demorganed).syntax());
} else {
- edit.replace_ast(neg_expr, demorganed);
+ editor.replace(neg_expr.syntax(), demorganed.syntax());
};
} else {
cov_mark::hit!(demorgan_double_parens);
- edit.replace_ast(paren_expr.into(), add_bang_paren(demorganed));
+ editor = builder.make_editor(paren_expr.syntax());
+
+ editor.replace(paren_expr.syntax(), add_bang_paren(&make, demorganed).syntax());
}
} else {
- edit.replace_ast(bin_expr.into(), add_bang_paren(demorganed));
+ editor = builder.make_editor(bin_expr.syntax());
+ editor.replace(bin_expr.syntax(), add_bang_paren(&make, demorganed).syntax());
}
+
+ editor.add_mappings(make.finish_with_mappings());
+ builder.add_file_edits(ctx.file_id(), editor);
},
)
}
@@ -161,7 +176,7 @@ pub(crate) fn apply_demorgan_iterator(acc: &mut Assists, ctx: &AssistContext<'_>
let (name, arg_expr) = validate_method_call_expr(ctx, &method_call)?;
let ast::Expr::ClosureExpr(closure_expr) = arg_expr else { return None };
- let closure_body = closure_expr.body()?;
+ let closure_body = closure_expr.body()?.clone_for_update();
let op_range = method_call.syntax().text_range();
let label = format!("Apply De Morgan's law to `Iterator::{}`", name.text().as_str());
@@ -170,18 +185,19 @@ pub(crate) fn apply_demorgan_iterator(acc: &mut Assists, ctx: &AssistContext<'_>
AssistId("apply_demorgan_iterator", AssistKind::RefactorRewrite),
label,
op_range,
- |edit| {
+ |builder| {
+ let make = SyntaxFactory::new();
+ let mut editor = builder.make_editor(method_call.syntax());
// replace the method name
let new_name = match name.text().as_str() {
- "all" => make::name_ref("any"),
- "any" => make::name_ref("all"),
+ "all" => make.name_ref("any"),
+ "any" => make.name_ref("all"),
_ => unreachable!(),
- }
- .clone_for_update();
- edit.replace_ast(name, new_name);
+ };
+ editor.replace(name.syntax(), new_name.syntax());
// negate all tail expressions in the closure body
- let tail_cb = &mut |e: &_| tail_cb_impl(edit, e);
+ let tail_cb = &mut |e: &_| tail_cb_impl(&mut editor, &make, e);
walk_expr(&closure_body, &mut |expr| {
if let ast::Expr::ReturnExpr(ret_expr) = expr {
if let Some(ret_expr_arg) = &ret_expr.expr() {
@@ -198,15 +214,15 @@ pub(crate) fn apply_demorgan_iterator(acc: &mut Assists, ctx: &AssistContext<'_>
.and_then(ast::PrefixExpr::cast)
.filter(|prefix_expr| matches!(prefix_expr.op_kind(), Some(ast::UnaryOp::Not)))
{
- edit.delete(
- prefix_expr
- .op_token()
- .expect("prefix expression always has an operator")
- .text_range(),
+ editor.delete(
+ prefix_expr.op_token().expect("prefix expression always has an operator"),
);
} else {
- edit.insert(method_call.syntax().text_range().start(), "!");
+ editor.insert(Position::before(method_call.syntax()), make.token(SyntaxKind::BANG));
}
+
+ editor.add_mappings(make.finish_with_mappings());
+ builder.add_file_edits(ctx.file_id(), editor);
},
)
}
@@ -233,26 +249,50 @@ fn validate_method_call_expr(
it_type.impls_trait(sema.db, iter_trait, &[]).then_some((name_ref, arg_expr))
}
-fn tail_cb_impl(edit: &mut SourceChangeBuilder, e: &ast::Expr) {
+fn tail_cb_impl(editor: &mut SyntaxEditor, make: &SyntaxFactory, e: &ast::Expr) {
match e {
ast::Expr::BreakExpr(break_expr) => {
if let Some(break_expr_arg) = break_expr.expr() {
- for_each_tail_expr(&break_expr_arg, &mut |e| tail_cb_impl(edit, e))
+ for_each_tail_expr(&break_expr_arg, &mut |e| tail_cb_impl(editor, make, e))
}
}
ast::Expr::ReturnExpr(_) => {
// all return expressions have already been handled by the walk loop
}
e => {
- let inverted_body = invert_boolean_expression(e.clone());
- edit.replace(e.syntax().text_range(), inverted_body.syntax().text());
+ let inverted_body = invert_boolean_expression(make, e.clone());
+ editor.replace(e.syntax(), inverted_body.syntax());
}
}
}
/// Add bang and parentheses to the expression.
-fn add_bang_paren(expr: ast::Expr) -> ast::Expr {
- make::expr_prefix(T![!], make::expr_paren(expr)).into()
+fn add_bang_paren(make: &SyntaxFactory, expr: ast::Expr) -> ast::Expr {
+ make.expr_prefix(T![!], make.expr_paren(expr).into()).into()
+}
+
+fn needs_parens_in_place_of(
+ this: &ast::Expr,
+ parent: &SyntaxNode,
+ in_place_of: &ast::Expr,
+) -> bool {
+ assert_eq!(Some(parent), in_place_of.syntax().parent().as_ref());
+
+ let child_idx = parent
+ .children()
+ .enumerate()
+ .find_map(|(i, it)| if &it == in_place_of.syntax() { Some(i) } else { None })
+ .unwrap();
+ let parent = parent.clone_subtree();
+ let subtree_place = parent.children().nth(child_idx).unwrap();
+
+ let mut editor = SyntaxEditor::new(parent);
+ editor.replace(subtree_place, this.syntax());
+ let edit = editor.finish();
+
+ let replaced = edit.new_root().children().nth(child_idx).unwrap();
+ let replaced = ast::Expr::cast(replaced).unwrap();
+ replaced.needs_parens_in(edit.new_root().clone())
}
#[cfg(test)]
diff --git a/crates/ide-assists/src/handlers/convert_bool_then.rs b/crates/ide-assists/src/handlers/convert_bool_then.rs
index eb784cd122..8d391c64ce 100644
--- a/crates/ide-assists/src/handlers/convert_bool_then.rs
+++ b/crates/ide-assists/src/handlers/convert_bool_then.rs
@@ -13,7 +13,7 @@ use syntax::{
};
use crate::{
- utils::{invert_boolean_expression, unwrap_trivial_block},
+ utils::{invert_boolean_expression_legacy, unwrap_trivial_block},
AssistContext, AssistId, AssistKind, Assists,
};
@@ -119,7 +119,7 @@ pub(crate) fn convert_if_to_bool_then(acc: &mut Assists, ctx: &AssistContext<'_>
| ast::Expr::WhileExpr(_)
| ast::Expr::YieldExpr(_)
);
- let cond = if invert_cond { invert_boolean_expression(cond) } else { cond };
+ let cond = if invert_cond { invert_boolean_expression_legacy(cond) } else { cond };
let cond = if parenthesize { make::expr_paren(cond) } else { cond };
let arg_list = make::arg_list(Some(make::expr_closure(None, closure_body)));
let mcall = make::expr_method_call(cond, make::name_ref("then"), arg_list);
diff --git a/crates/ide-assists/src/handlers/convert_to_guarded_return.rs b/crates/ide-assists/src/handlers/convert_to_guarded_return.rs
index e1966d476c..b7a7764449 100644
--- a/crates/ide-assists/src/handlers/convert_to_guarded_return.rs
+++ b/crates/ide-assists/src/handlers/convert_to_guarded_return.rs
@@ -17,7 +17,7 @@ use syntax::{
use crate::{
assist_context::{AssistContext, Assists},
- utils::invert_boolean_expression,
+ utils::invert_boolean_expression_legacy,
AssistId, AssistKind,
};
@@ -139,7 +139,7 @@ fn if_expr_to_guarded_return(
let new_expr = {
let then_branch =
make::block_expr(once(make::expr_stmt(early_expression).into()), None);
- let cond = invert_boolean_expression(cond_expr);
+ let cond = invert_boolean_expression_legacy(cond_expr);
make::expr_if(cond, then_branch, None).indent(if_indent_level)
};
new_expr.syntax().clone_for_update()
diff --git a/crates/ide-assists/src/handlers/convert_while_to_loop.rs b/crates/ide-assists/src/handlers/convert_while_to_loop.rs
index 0b92beefbc..beec64d13b 100644
--- a/crates/ide-assists/src/handlers/convert_while_to_loop.rs
+++ b/crates/ide-assists/src/handlers/convert_while_to_loop.rs
@@ -13,7 +13,7 @@ use syntax::{
use crate::{
assist_context::{AssistContext, Assists},
- utils::invert_boolean_expression,
+ utils::invert_boolean_expression_legacy,
AssistId, AssistKind,
};
@@ -63,7 +63,7 @@ pub(crate) fn convert_while_to_loop(acc: &mut Assists, ctx: &AssistContext<'_>)
let stmts = iter::once(make::expr_stmt(if_expr.into()).into());
make::block_expr(stmts, None)
} else {
- let if_cond = invert_boolean_expression(while_cond);
+ let if_cond = invert_boolean_expression_legacy(while_cond);
let if_expr = make::expr_if(if_cond, break_block, None).syntax().clone().into();
let elements = while_body.stmt_list().map_or_else(
|| Either::Left(iter::empty()),
diff --git a/crates/ide-assists/src/handlers/invert_if.rs b/crates/ide-assists/src/handlers/invert_if.rs
index 547158e297..ac710503d8 100644
--- a/crates/ide-assists/src/handlers/invert_if.rs
+++ b/crates/ide-assists/src/handlers/invert_if.rs
@@ -6,7 +6,7 @@ use syntax::{
use crate::{
assist_context::{AssistContext, Assists},
- utils::invert_boolean_expression,
+ utils::invert_boolean_expression_legacy,
AssistId, AssistKind,
};
@@ -48,7 +48,7 @@ pub(crate) fn invert_if(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()
};
acc.add(AssistId("invert_if", AssistKind::RefactorRewrite), "Invert if", if_range, |edit| {
- let flip_cond = invert_boolean_expression(cond.clone());
+ let flip_cond = invert_boolean_expression_legacy(cond.clone());
edit.replace_ast(cond, flip_cond);
let else_node = else_block.syntax();
diff --git a/crates/ide-assists/src/utils.rs b/crates/ide-assists/src/utils.rs
index c1332d99bf..39686f065a 100644
--- a/crates/ide-assists/src/utils.rs
+++ b/crates/ide-assists/src/utils.rs
@@ -17,7 +17,9 @@ use syntax::{
self,
edit::{AstNodeEdit, IndentLevel},
edit_in_place::{AttrsOwnerEdit, Indent, Removable},
- make, HasArgList, HasAttrs, HasGenericParams, HasName, HasTypeBounds, Whitespace,
+ make,
+ syntax_factory::SyntaxFactory,
+ HasArgList, HasAttrs, HasGenericParams, HasName, HasTypeBounds, Whitespace,
},
ted, AstNode, AstToken, Direction, Edition, NodeOrToken, SourceFile,
SyntaxKind::*,
@@ -245,11 +247,79 @@ pub(crate) fn vis_offset(node: &SyntaxNode) -> TextSize {
.unwrap_or_else(|| node.text_range().start())
}
-pub(crate) fn invert_boolean_expression(expr: ast::Expr) -> ast::Expr {
- invert_special_case(&expr).unwrap_or_else(|| make::expr_prefix(T![!], expr).into())
+pub(crate) fn invert_boolean_expression(make: &SyntaxFactory, expr: ast::Expr) -> ast::Expr {
+ invert_special_case(make, &expr).unwrap_or_else(|| make.expr_prefix(T![!], expr).into())
}
-fn invert_special_case(expr: &ast::Expr) -> Option<ast::Expr> {
+// FIXME: Migrate usages of this function to the above function and remove this.
+pub(crate) fn invert_boolean_expression_legacy(expr: ast::Expr) -> ast::Expr {
+ invert_special_case_legacy(&expr).unwrap_or_else(|| make::expr_prefix(T![!], expr).into())
+}
+
+fn invert_special_case(make: &SyntaxFactory, expr: &ast::Expr) -> Option<ast::Expr> {
+ match expr {
+ ast::Expr::BinExpr(bin) => {
+ let op_kind = bin.op_kind()?;
+ let rev_kind = match op_kind {
+ ast::BinaryOp::CmpOp(ast::CmpOp::Eq { negated }) => {
+ ast::BinaryOp::CmpOp(ast::CmpOp::Eq { negated: !negated })
+ }
+ ast::BinaryOp::CmpOp(ast::CmpOp::Ord { ordering: ast::Ordering::Less, strict }) => {
+ ast::BinaryOp::CmpOp(ast::CmpOp::Ord {
+ ordering: ast::Ordering::Greater,
+ strict: !strict,
+ })
+ }
+ ast::BinaryOp::CmpOp(ast::CmpOp::Ord {
+ ordering: ast::Ordering::Greater,
+ strict,
+ }) => ast::BinaryOp::CmpOp(ast::CmpOp::Ord {
+ ordering: ast::Ordering::Less,
+ strict: !strict,
+ }),
+ // Parenthesize other expressions before prefixing `!`
+ _ => {
+ return Some(
+ make.expr_prefix(T![!], make.expr_paren(expr.clone()).into()).into(),
+ );
+ }
+ };
+
+ Some(make.expr_bin(bin.lhs()?, rev_kind, bin.rhs()?).into())
+ }
+ ast::Expr::MethodCallExpr(mce) => {
+ let receiver = mce.receiver()?;
+ let method = mce.name_ref()?;
+ let arg_list = mce.arg_list()?;
+
+ let method = match method.text().as_str() {
+ "is_some" => "is_none",
+ "is_none" => "is_some",
+ "is_ok" => "is_err",
+ "is_err" => "is_ok",
+ _ => return None,
+ };
+
+ Some(make.expr_method_call(receiver, make.name_ref(method), arg_list).into())
+ }
+ ast::Expr::PrefixExpr(pe) if pe.op_kind()? == ast::UnaryOp::Not => match pe.expr()? {
+ ast::Expr::ParenExpr(parexpr) => {
+ parexpr.expr().map(|e| e.clone_subtree().clone_for_update())
+ }
+ _ => pe.expr().map(|e| e.clone_subtree().clone_for_update()),
+ },
+ ast::Expr::Literal(lit) => match lit.kind() {
+ ast::LiteralKind::Bool(b) => match b {
+ true => Some(ast::Expr::Literal(make.expr_literal("false"))),
+ false => Some(ast::Expr::Literal(make.expr_literal("true"))),
+ },
+ _ => None,
+ },
+ _ => None,
+ }
+}
+
+fn invert_special_case_legacy(expr: &ast::Expr) -> Option<ast::Expr> {
match expr {
ast::Expr::BinExpr(bin) => {
let bin = bin.clone_for_update();
diff --git a/crates/syntax/src/ast/make.rs b/crates/syntax/src/ast/make.rs
index 9dc2d83253..231c21c38f 100644
--- a/crates/syntax/src/ast/make.rs
+++ b/crates/syntax/src/ast/make.rs
@@ -784,7 +784,7 @@ pub fn record_pat_field_shorthand(name_ref: ast::NameRef) -> ast::RecordPatField
ast_from_text(&format!("fn f(S {{ {name_ref} }}: ()))"))
}
-/// Returns a `BindPat` if the path has just one segment, a `PathPat` otherwise.
+/// Returns a `IdentPat` if the path has just one segment, a `PathPat` otherwise.
pub fn path_pat(path: ast::Path) -> ast::Pat {
return from_text(&path.to_string());
fn from_text(text: &str) -> ast::Pat {
diff --git a/crates/syntax/src/ast/syntax_factory.rs b/crates/syntax/src/ast/syntax_factory.rs
index 73bbe49105..1c517ac2c7 100644
--- a/crates/syntax/src/ast/syntax_factory.rs
+++ b/crates/syntax/src/ast/syntax_factory.rs
@@ -33,6 +33,11 @@ impl SyntaxFactory {
self.mappings.unwrap_or_default().into_inner()
}
+ /// Take all of the tracked syntax mappings, leaving `SyntaxMapping::default()` in its place, if any.
+ pub fn take(&self) -> SyntaxMapping {
+ self.mappings.as_ref().map(|mappings| mappings.take()).unwrap_or_default()
+ }
+
fn mappings(&self) -> Option<RefMut<'_, SyntaxMapping>> {
self.mappings.as_ref().map(|it| it.borrow_mut())
}
diff --git a/crates/syntax/src/ast/syntax_factory/constructors.rs b/crates/syntax/src/ast/syntax_factory/constructors.rs
index 572622db54..19c5c64e21 100644
--- a/crates/syntax/src/ast/syntax_factory/constructors.rs
+++ b/crates/syntax/src/ast/syntax_factory/constructors.rs
@@ -156,6 +156,32 @@ impl SyntaxFactory {
make::literal_pat(text).clone_for_update()
}
+ pub fn slice_pat(&self, pats: impl IntoIterator<Item = ast::Pat>) -> ast::SlicePat {
+ let (pats, input) = iterator_input(pats);
+ let ast = make::slice_pat(pats).clone_for_update();
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_children(input.into_iter(), ast.pats().map(|it| it.syntax().clone()));
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
+ pub fn tuple_pat(&self, pats: impl IntoIterator<Item = ast::Pat>) -> ast::TuplePat {
+ let (pats, input) = iterator_input(pats);
+ let ast = make::tuple_pat(pats).clone_for_update();
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_children(input.into_iter(), ast.fields().map(|it| it.syntax().clone()));
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
pub fn tuple_struct_pat(
&self,
path: ast::Path,
@@ -174,6 +200,96 @@ impl SyntaxFactory {
ast
}
+ pub fn record_pat_with_fields(
+ &self,
+ path: ast::Path,
+ fields: ast::RecordPatFieldList,
+ ) -> ast::RecordPat {
+ let ast = make::record_pat_with_fields(path.clone(), fields.clone()).clone_for_update();
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_node(path.syntax().clone(), ast.path().unwrap().syntax().clone());
+ builder.map_node(
+ fields.syntax().clone(),
+ ast.record_pat_field_list().unwrap().syntax().clone(),
+ );
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
+ pub fn record_pat_field_list(
+ &self,
+ fields: impl IntoIterator<Item = ast::RecordPatField>,
+ rest_pat: Option<ast::RestPat>,
+ ) -> ast::RecordPatFieldList {
+ let (fields, input) = iterator_input(fields);
+ let ast = make::record_pat_field_list(fields, rest_pat.clone()).clone_for_update();
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_children(input.into_iter(), ast.fields().map(|it| it.syntax().clone()));
+ if let Some(rest_pat) = rest_pat {
+ builder
+ .map_node(rest_pat.syntax().clone(), ast.rest_pat().unwrap().syntax().clone());
+ }
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
+ pub fn record_pat_field(self, name_ref: ast::NameRef, pat: ast::Pat) -> ast::RecordPatField {
+ let ast = make::record_pat_field(name_ref.clone(), pat.clone()).clone_for_update();
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_node(name_ref.syntax().clone(), ast.name_ref().unwrap().syntax().clone());
+ builder.map_node(pat.syntax().clone(), ast.pat().unwrap().syntax().clone());
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
+ pub fn record_pat_field_shorthand(&self, name_ref: ast::NameRef) -> ast::RecordPatField {
+ let ast = make::record_pat_field_shorthand(name_ref.clone()).clone_for_update();
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_node(name_ref.syntax().clone(), ast.pat().unwrap().syntax().clone());
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
+ pub fn path_pat(&self, path: ast::Path) -> ast::Pat {
+ let ast = make::path_pat(path.clone()).clone_for_update();
+
+ match &ast {
+ ast::Pat::PathPat(ast) => {
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_node(path.syntax().clone(), ast.path().unwrap().syntax().clone());
+ builder.finish(&mut mapping)
+ }
+ }
+ ast::Pat::IdentPat(ast) => {
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_node(path.syntax().clone(), ast.name().unwrap().syntax().clone());
+ builder.finish(&mut mapping)
+ }
+ }
+ _ => unreachable!(),
+ }
+
+ ast
+ }
+
pub fn block_expr(
&self,
statements: impl IntoIterator<Item = ast::Stmt>,
@@ -214,6 +330,21 @@ impl SyntaxFactory {
make::expr_empty_block().clone_for_update()
}
+ pub fn expr_paren(&self, expr: ast::Expr) -> ast::ParenExpr {
+ // FIXME: `make::expr_paren` should return a `ParenExpr`, not just an `Expr`
+ let ast::Expr::ParenExpr(ast) = make::expr_paren(expr.clone()).clone_for_update() else {
+ unreachable!()
+ };
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_node(expr.syntax().clone(), ast.expr().unwrap().syntax().clone());
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
pub fn expr_tuple(&self, fields: impl IntoIterator<Item = ast::Expr>) -> ast::TupleExpr {
let (fields, input) = iterator_input(fields);
let ast = make::expr_tuple(fields).clone_for_update();
@@ -292,6 +423,31 @@ impl SyntaxFactory {
ast
}
+ pub fn expr_method_call(
+ &self,
+ receiver: ast::Expr,
+ method: ast::NameRef,
+ arg_list: ast::ArgList,
+ ) -> ast::MethodCallExpr {
+ // FIXME: `make::expr_method_call` should return a `MethodCallExpr`, not just an `Expr`
+ let ast::Expr::MethodCallExpr(ast) =
+ make::expr_method_call(receiver.clone(), method.clone(), arg_list.clone())
+ .clone_for_update()
+ else {
+ unreachable!()
+ };
+
+ if let Some(mut mapping) = self.mappings() {
+ let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone());
+ builder.map_node(receiver.syntax().clone(), ast.receiver().unwrap().syntax().clone());
+ builder.map_node(method.syntax().clone(), ast.name_ref().unwrap().syntax().clone());
+ builder.map_node(arg_list.syntax().clone(), ast.arg_list().unwrap().syntax().clone());
+ builder.finish(&mut mapping);
+ }
+
+ ast
+ }
+
pub fn arg_list(&self, args: impl IntoIterator<Item = ast::Expr>) -> ast::ArgList {
let (args, input) = iterator_input(args);
let ast = make::arg_list(args).clone_for_update();