Archived
Will Anderson
94 lines
2.5 KiB
Rust
94 lines
2.5 KiB
Rust
//! AST types for el-ui component files.
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/// A parsed component definition.
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#[derive(Debug, Clone)]
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pub struct Component {
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pub name: String,
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pub props: Vec<PropDef>,
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pub state: Vec<StateDef>,
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pub methods: Vec<Method>,
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pub template: Template,
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}
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/// A prop declaration inside `props { ... }`.
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#[derive(Debug, Clone)]
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pub struct PropDef {
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pub name: String,
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pub type_name: String,
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pub default: Option<String>,
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}
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/// A state declaration inside `state { ... }`.
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#[derive(Debug, Clone)]
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pub struct StateDef {
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pub name: String,
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pub type_name: String,
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pub initial: String,
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}
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/// A method defined with `fn` inside the component body.
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#[derive(Debug, Clone)]
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pub struct Method {
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pub name: String,
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pub params: Vec<(String, String)>, // (name, type)
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pub return_type: String,
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pub body: String, // raw source text of the body (we pass through verbatim)
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}
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/// The template block.
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#[derive(Debug, Clone)]
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pub struct Template {
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pub nodes: Vec<TemplateNode>,
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}
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/// A node within the template tree.
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#[derive(Debug, Clone)]
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pub enum TemplateNode {
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/// A plain HTML element: `<div class="foo">...</div>`
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Element {
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tag: String,
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attrs: Vec<Attr>,
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children: Vec<TemplateNode>,
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},
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/// A component usage (uppercase first letter): `<Counter />`
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Component {
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name: String,
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props: Vec<Attr>,
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},
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/// Literal text content.
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Text(String),
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/// An interpolated expression: `{count}`
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Interpolation(String),
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/// Conditional: `{#if cond}...{/if}` or `{#if cond}...{:else}...{/if}`
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If {
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condition: String,
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then: Vec<TemplateNode>,
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else_: Option<Vec<TemplateNode>>,
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},
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/// List rendering: `{#each items as item}...{/each}`
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Each {
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items: String,
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item_name: String,
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children: Vec<TemplateNode>,
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},
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/// Semantic activation query: `{#activate "query" as results}...{/activate}`
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Activate {
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query: String,
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result_name: String,
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children: Vec<TemplateNode>,
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},
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}
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/// An attribute on a template element.
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#[derive(Debug, Clone)]
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pub enum Attr {
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/// `class="btn"` — static string value
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Static { name: String, value: String },
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/// `class={expr}` — dynamic expression
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Dynamic { name: String, expr: String },
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/// `on:click={handler}` — event handler
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EventHandler { event: String, handler: String },
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/// `disabled={boolExpr}` — boolean attribute
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BoolAttr { name: String, expr: String },
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}
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