gffranco
dc2a952e67
Define every node type in SPEC.md §6.4 — Document, 11 block variants, 15 inline variants (including the 4 link-related ones), plus ListItem / DefinitionItem / TableRow / TableCell, ListSymbol, CheckboxState, Keyword, LinkTarget, LinkKind. Every node carries a `Span` (line + column + byte offset, 0-indexed) per §6.5. Visitor: open-recursion trait with default `visit_*` bodies that delegate to `walk_*` free functions. Override at any granularity; call `walk_*` from your override to keep descending. P4 resolved by defining the trait now so Phase 5 (renderer) and Phase 7 (semantic tokens) can plug in without refactoring traversal. P3 resolved: AST string fields are owned `String`. Cow / Arc<str> can be revisited if the parser grows a zero-copy mode. Tests: visitor smoke test builds a heading + paragraph + list + table by hand and asserts exact visit counts (4 blocks, 12 inlines, 9 text leaves, 1 bold, 1 external link, 1 transclusion). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
67 lines
1.5 KiB
Rust
67 lines
1.5 KiB
Rust
//! Link-related AST nodes and supporting types.
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//!
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//! See SPEC.md §6.4. All nodes here are inline (`InlineNode` variants);
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//! they live in their own module because the link model has enough surface
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//! area (kinds, anchors, interwiki indirection) to warrant separation.
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use std::collections::HashMap;
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use super::inline::InlineNode;
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use super::span::Span;
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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pub enum LinkKind {
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Wiki,
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Interwiki,
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Diary,
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File,
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Local,
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Raw,
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AnchorOnly,
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}
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#[derive(Debug, Clone, Default, PartialEq, Eq, Hash)]
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pub struct LinkTarget {
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pub kind: LinkKind,
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pub path: Option<String>,
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pub wiki_index: Option<usize>,
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pub wiki_name: Option<String>,
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pub anchor: Option<String>,
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pub is_absolute: bool,
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pub is_directory: bool,
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}
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impl Default for LinkKind {
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fn default() -> Self {
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Self::Wiki
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}
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}
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct WikiLinkNode {
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pub span: Span,
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pub target: LinkTarget,
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pub description: Option<Vec<InlineNode>>,
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}
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct ExternalLinkNode {
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pub span: Span,
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pub url: String,
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pub description: Option<Vec<InlineNode>>,
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}
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct TransclusionNode {
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pub span: Span,
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pub url: String,
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pub alt: Option<String>,
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pub attrs: HashMap<String, String>,
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}
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct RawUrlNode {
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pub span: Span,
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pub url: String,
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}
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