mirror of
https://github.com/astral-sh/ruff.git
synced 2025-08-17 09:00:26 +00:00
[ty] AST garbage collection (#18482)
## Summary Garbage collect ASTs once we are done checking a given file. Queries with a cross-file dependency on the AST will reparse the file on demand. This reduces ty's peak memory usage by ~20-30%. The primary change of this PR is adding a `node_index` field to every AST node, that is assigned by the parser. `ParsedModule` can use this to create a flat index of AST nodes any time the file is parsed (or reparsed). This allows `AstNodeRef` to simply index into the current instance of the `ParsedModule`, instead of storing a pointer directly. The indices are somewhat hackily (using an atomic integer) assigned by the `parsed_module` query instead of by the parser directly. Assigning the indices in source-order in the (recursive) parser turns out to be difficult, and collecting the nodes during semantic indexing is impossible as `SemanticIndex` does not hold onto a specific `ParsedModuleRef`, which the pointers in the flat AST are tied to. This means that we have to do an extra AST traversal to assign and collect the nodes into a flat index, but the small performance impact (~3% on cold runs) seems worth it for the memory savings. Part of https://github.com/astral-sh/ty/issues/214.
This commit is contained in:
Ibraheem Ahmed
GitHub
parent
76d9009a6e
commit
c9dff5c7d5
824 changed files with 25243 additions and 804 deletions
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@ -1,5 +1,6 @@
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#![allow(clippy::derive_partial_eq_without_eq)]
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use crate::AtomicNodeIndex;
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use crate::generated::{
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ExprBytesLiteral, ExprDict, ExprFString, ExprList, ExprName, ExprSet, ExprStringLiteral,
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ExprTString, ExprTuple, StmtClassDef,
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@ -48,6 +49,7 @@ impl StmtClassDef {
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#[derive(Clone, Debug, PartialEq)]
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pub struct ElifElseClause {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub test: Option<Expr>,
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pub body: Vec<Stmt>,
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}
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@ -316,6 +318,7 @@ impl<'a> IntoIterator for &'a ExprSet {
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#[derive(Clone, Debug, PartialEq)]
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pub struct InterpolatedStringFormatSpec {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub elements: InterpolatedStringElements,
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}
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@ -323,6 +326,7 @@ pub struct InterpolatedStringFormatSpec {
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#[derive(Clone, Debug, PartialEq)]
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pub struct InterpolatedElement {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub expression: Box<Expr>,
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pub debug_text: Option<DebugText>,
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pub conversion: ConversionFlag,
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@ -333,6 +337,7 @@ pub struct InterpolatedElement {
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#[derive(Clone, Debug, PartialEq)]
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pub struct InterpolatedStringLiteralElement {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub value: Box<str>,
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}
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@ -1105,6 +1110,7 @@ impl fmt::Debug for TStringFlags {
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#[derive(Clone, Debug, PartialEq)]
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pub struct FString {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub elements: InterpolatedStringElements,
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pub flags: FStringFlags,
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}
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@ -1112,6 +1118,7 @@ pub struct FString {
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impl From<FString> for Expr {
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fn from(payload: FString) -> Self {
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ExprFString {
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node_index: payload.node_index.clone(),
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range: payload.range,
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value: FStringValue::single(payload),
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}
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@ -1183,6 +1190,7 @@ impl fmt::Debug for InterpolatedStringElements {
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#[derive(Clone, Debug, PartialEq)]
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pub struct TString {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub elements: InterpolatedStringElements,
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pub flags: TStringFlags,
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}
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@ -1190,6 +1198,7 @@ pub struct TString {
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impl From<TString> for Expr {
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fn from(payload: TString) -> Self {
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ExprTString {
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node_index: payload.node_index.clone(),
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range: payload.range,
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value: TStringValue::single(payload),
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}
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@ -1553,6 +1562,7 @@ impl fmt::Debug for StringLiteralFlags {
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#[derive(Clone, Debug, PartialEq)]
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pub struct StringLiteral {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub value: Box<str>,
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pub flags: StringLiteralFlags,
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}
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@ -1576,6 +1586,7 @@ impl StringLiteral {
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Self {
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range,
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value: "".into(),
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node_index: AtomicNodeIndex::dummy(),
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flags: StringLiteralFlags::empty().with_invalid(),
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}
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}
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@ -1595,6 +1606,7 @@ impl From<StringLiteral> for Expr {
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fn from(payload: StringLiteral) -> Self {
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ExprStringLiteral {
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range: payload.range,
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node_index: AtomicNodeIndex::dummy(),
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value: StringLiteralValue::single(payload),
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}
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.into()
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@ -1941,6 +1953,7 @@ impl fmt::Debug for BytesLiteralFlags {
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#[derive(Clone, Debug, PartialEq)]
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pub struct BytesLiteral {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub value: Box<[u8]>,
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pub flags: BytesLiteralFlags,
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}
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@ -1964,6 +1977,7 @@ impl BytesLiteral {
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Self {
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range,
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value: Box::new([]),
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node_index: AtomicNodeIndex::dummy(),
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flags: BytesLiteralFlags::empty().with_invalid(),
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}
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}
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@ -1973,6 +1987,7 @@ impl From<BytesLiteral> for Expr {
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fn from(payload: BytesLiteral) -> Self {
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ExprBytesLiteral {
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range: payload.range,
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node_index: AtomicNodeIndex::dummy(),
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value: BytesLiteralValue::single(payload),
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}
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.into()
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@ -2573,6 +2588,7 @@ impl fmt::Display for CmpOp {
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#[derive(Clone, Debug, PartialEq)]
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pub struct Comprehension {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub target: Expr,
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pub iter: Expr,
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pub ifs: Vec<Expr>,
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@ -2583,6 +2599,7 @@ pub struct Comprehension {
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#[derive(Clone, Debug, PartialEq)]
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pub struct ExceptHandlerExceptHandler {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub type_: Option<Box<Expr>>,
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pub name: Option<Identifier>,
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pub body: Vec<Stmt>,
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@ -2592,6 +2609,7 @@ pub struct ExceptHandlerExceptHandler {
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#[derive(Clone, Debug, PartialEq)]
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pub struct Parameter {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub name: Identifier,
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pub annotation: Option<Box<Expr>>,
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}
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@ -2610,6 +2628,7 @@ impl Parameter {
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#[derive(Clone, Debug, PartialEq)]
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pub struct Keyword {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub arg: Option<Identifier>,
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pub value: Expr,
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}
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@ -2618,6 +2637,7 @@ pub struct Keyword {
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#[derive(Clone, Debug, PartialEq)]
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pub struct Alias {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub name: Identifier,
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pub asname: Option<Identifier>,
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}
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@ -2626,6 +2646,7 @@ pub struct Alias {
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#[derive(Clone, Debug, PartialEq)]
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pub struct WithItem {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub context_expr: Expr,
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pub optional_vars: Option<Box<Expr>>,
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}
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@ -2634,6 +2655,7 @@ pub struct WithItem {
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#[derive(Clone, Debug, PartialEq)]
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pub struct MatchCase {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub pattern: Pattern,
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pub guard: Option<Box<Expr>>,
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pub body: Vec<Stmt>,
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@ -2654,16 +2676,19 @@ impl Pattern {
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pattern,
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name,
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range,
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node_index,
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}) => match pattern {
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Some(pattern) => pattern.irrefutable_pattern(),
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None => match name {
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Some(name) => Some(IrrefutablePattern {
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kind: IrrefutablePatternKind::Name(name.id.clone()),
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range: *range,
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node_index: node_index.clone(),
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}),
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None => Some(IrrefutablePattern {
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kind: IrrefutablePatternKind::Wildcard,
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range: *range,
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node_index: node_index.clone(),
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}),
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},
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},
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@ -2701,6 +2726,7 @@ impl Pattern {
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pub struct IrrefutablePattern {
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pub kind: IrrefutablePatternKind,
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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}
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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@ -2713,6 +2739,7 @@ pub enum IrrefutablePatternKind {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchValue {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub value: Box<Expr>,
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}
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@ -2720,6 +2747,7 @@ pub struct PatternMatchValue {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchSingleton {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub value: Singleton,
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}
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@ -2727,6 +2755,7 @@ pub struct PatternMatchSingleton {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchSequence {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub patterns: Vec<Pattern>,
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}
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@ -2734,6 +2763,7 @@ pub struct PatternMatchSequence {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchMapping {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub keys: Vec<Expr>,
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pub patterns: Vec<Pattern>,
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pub rest: Option<Identifier>,
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@ -2743,6 +2773,7 @@ pub struct PatternMatchMapping {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchClass {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub cls: Box<Expr>,
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pub arguments: PatternArguments,
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}
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@ -2754,6 +2785,7 @@ pub struct PatternMatchClass {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternArguments {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub patterns: Vec<Pattern>,
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pub keywords: Vec<PatternKeyword>,
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}
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@ -2765,6 +2797,7 @@ pub struct PatternArguments {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternKeyword {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub attr: Identifier,
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pub pattern: Pattern,
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}
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@ -2773,6 +2806,7 @@ pub struct PatternKeyword {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchStar {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub name: Option<Identifier>,
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}
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@ -2780,6 +2814,7 @@ pub struct PatternMatchStar {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchAs {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub pattern: Option<Box<Pattern>>,
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pub name: Option<Identifier>,
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}
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@ -2788,6 +2823,7 @@ pub struct PatternMatchAs {
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#[derive(Clone, Debug, PartialEq)]
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pub struct PatternMatchOr {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub patterns: Vec<Pattern>,
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}
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@ -2813,6 +2849,7 @@ impl TypeParam {
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#[derive(Clone, Debug, PartialEq)]
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pub struct TypeParamTypeVar {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub name: Identifier,
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pub bound: Option<Box<Expr>>,
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pub default: Option<Box<Expr>>,
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@ -2822,6 +2859,7 @@ pub struct TypeParamTypeVar {
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#[derive(Clone, Debug, PartialEq)]
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pub struct TypeParamParamSpec {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub name: Identifier,
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pub default: Option<Box<Expr>>,
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}
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@ -2830,6 +2868,7 @@ pub struct TypeParamParamSpec {
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#[derive(Clone, Debug, PartialEq)]
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pub struct TypeParamTypeVarTuple {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub name: Identifier,
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pub default: Option<Box<Expr>>,
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}
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@ -2838,6 +2877,7 @@ pub struct TypeParamTypeVarTuple {
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#[derive(Clone, Debug, PartialEq)]
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pub struct Decorator {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub expression: Expr,
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}
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@ -2911,6 +2951,7 @@ impl Ranged for AnyParameterRef<'_> {
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#[derive(Clone, Debug, PartialEq, Default)]
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pub struct Parameters {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub posonlyargs: Vec<ParameterWithDefault>,
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pub args: Vec<ParameterWithDefault>,
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pub vararg: Option<Box<Parameter>>,
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@ -2945,6 +2986,7 @@ impl Parameters {
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pub fn len(&self) -> usize {
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let Parameters {
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range: _,
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node_index: _,
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posonlyargs,
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args,
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vararg,
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@ -2993,6 +3035,7 @@ impl<'a> ParametersIterator<'a> {
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fn new(parameters: &'a Parameters) -> Self {
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let Parameters {
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range: _,
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node_index: _,
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posonlyargs,
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args,
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vararg,
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@ -3127,6 +3170,7 @@ impl<'a> IntoIterator for &'a Box<Parameters> {
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#[derive(Clone, Debug, PartialEq)]
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pub struct ParameterWithDefault {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub parameter: Parameter,
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pub default: Option<Box<Expr>>,
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}
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@ -3170,6 +3214,7 @@ impl ParameterWithDefault {
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#[derive(Clone, Debug, PartialEq)]
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pub struct Arguments {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub args: Box<[Expr]>,
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pub keywords: Box<[Keyword]>,
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}
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@ -3319,6 +3364,7 @@ impl Arguments {
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#[derive(Clone, Debug, PartialEq)]
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pub struct TypeParams {
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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pub type_params: Vec<TypeParam>,
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}
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@ -3433,6 +3479,7 @@ impl IpyEscapeKind {
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pub struct Identifier {
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pub id: Name,
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pub range: TextRange,
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pub node_index: AtomicNodeIndex,
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}
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impl Identifier {
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|
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@ -3440,6 +3487,7 @@ impl Identifier {
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pub fn new(id: impl Into<Name>, range: TextRange) -> Self {
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Self {
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id: id.into(),
|
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node_index: AtomicNodeIndex::dummy(),
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range,
|
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}
|
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}
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@ -3527,45 +3575,44 @@ mod tests {
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#[test]
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#[cfg(target_pointer_width = "64")]
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fn size() {
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assert!(std::mem::size_of::<Stmt>() <= 120);
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assert!(std::mem::size_of::<StmtFunctionDef>() <= 120);
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assert!(std::mem::size_of::<StmtClassDef>() <= 104);
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assert!(std::mem::size_of::<StmtTry>() <= 112);
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assert!(std::mem::size_of::<Mod>() <= 32);
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assert!(matches!(std::mem::size_of::<Pattern>(), 88));
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assert_eq!(std::mem::size_of::<Expr>(), 64);
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assert_eq!(std::mem::size_of::<ExprAttribute>(), 56);
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assert_eq!(std::mem::size_of::<ExprAwait>(), 16);
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assert_eq!(std::mem::size_of::<Stmt>(), 128);
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assert_eq!(std::mem::size_of::<StmtFunctionDef>(), 128);
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assert_eq!(std::mem::size_of::<StmtClassDef>(), 120);
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assert_eq!(std::mem::size_of::<StmtTry>(), 112);
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assert_eq!(std::mem::size_of::<Mod>(), 40);
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assert_eq!(std::mem::size_of::<Pattern>(), 104);
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assert_eq!(std::mem::size_of::<Expr>(), 80);
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assert_eq!(std::mem::size_of::<ExprAttribute>(), 64);
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assert_eq!(std::mem::size_of::<ExprAwait>(), 24);
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assert_eq!(std::mem::size_of::<ExprBinOp>(), 32);
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assert_eq!(std::mem::size_of::<ExprBoolOp>(), 40);
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assert_eq!(std::mem::size_of::<ExprBooleanLiteral>(), 12);
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assert_eq!(std::mem::size_of::<ExprBytesLiteral>(), 40);
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assert_eq!(std::mem::size_of::<ExprCall>(), 56);
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assert_eq!(std::mem::size_of::<ExprCompare>(), 48);
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assert_eq!(std::mem::size_of::<ExprDict>(), 32);
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assert_eq!(std::mem::size_of::<ExprDictComp>(), 48);
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assert_eq!(std::mem::size_of::<ExprEllipsisLiteral>(), 8);
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assert!(matches!(std::mem::size_of::<ExprFString>(), 48));
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assert_eq!(std::mem::size_of::<ExprBooleanLiteral>(), 16);
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assert_eq!(std::mem::size_of::<ExprBytesLiteral>(), 48);
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assert_eq!(std::mem::size_of::<ExprCall>(), 72);
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assert_eq!(std::mem::size_of::<ExprCompare>(), 56);
|
||||
assert_eq!(std::mem::size_of::<ExprDict>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprDictComp>(), 56);
|
||||
assert_eq!(std::mem::size_of::<ExprEllipsisLiteral>(), 12);
|
||||
assert_eq!(std::mem::size_of::<ExprFString>(), 56);
|
||||
assert_eq!(std::mem::size_of::<ExprGenerator>(), 48);
|
||||
assert_eq!(std::mem::size_of::<ExprIf>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprIf>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprIpyEscapeCommand>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprLambda>(), 24);
|
||||
assert_eq!(std::mem::size_of::<ExprLambda>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprList>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprListComp>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprListComp>(), 48);
|
||||
assert_eq!(std::mem::size_of::<ExprName>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprNamed>(), 24);
|
||||
assert_eq!(std::mem::size_of::<ExprNoneLiteral>(), 8);
|
||||
assert_eq!(std::mem::size_of::<ExprNumberLiteral>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprSet>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprSetComp>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprSlice>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprNamed>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprNoneLiteral>(), 12);
|
||||
assert_eq!(std::mem::size_of::<ExprNumberLiteral>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprSet>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprSetComp>(), 48);
|
||||
assert_eq!(std::mem::size_of::<ExprSlice>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprStarred>(), 24);
|
||||
assert_eq!(std::mem::size_of::<ExprStringLiteral>(), 56);
|
||||
assert_eq!(std::mem::size_of::<ExprStringLiteral>(), 64);
|
||||
assert_eq!(std::mem::size_of::<ExprSubscript>(), 32);
|
||||
assert_eq!(std::mem::size_of::<ExprTuple>(), 40);
|
||||
assert_eq!(std::mem::size_of::<ExprUnaryOp>(), 24);
|
||||
assert_eq!(std::mem::size_of::<ExprYield>(), 16);
|
||||
assert_eq!(std::mem::size_of::<ExprYieldFrom>(), 16);
|
||||
assert_eq!(std::mem::size_of::<ExprYield>(), 24);
|
||||
assert_eq!(std::mem::size_of::<ExprYieldFrom>(), 24);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue