vue3-yuanma/packages/compiler-core/src/ast.ts

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// Vue template is a platform-agnostic superset of HTML (syntax only).
// More namespaces like SVG and MathML are declared by platform specific
// compilers.
export type Namespace = number
export const enum Namespaces {
HTML
}
export const enum NodeTypes {
TEXT,
COMMENT,
ELEMENT,
ATTRIBUTE,
EXPRESSION,
DIRECTIVE,
ROOT
}
export const enum ElementTypes {
ELEMENT,
COMPONENT,
SLOT, // slot
TEMPLATE // template, component
}
export interface Node {
type: NodeTypes
loc: SourceLocation
}
export interface RootNode extends Node {
type: NodeTypes.ROOT
children: Array<ElementNode | ExpressionNode | TextNode | CommentNode>
}
export interface ElementNode extends Node {
type: NodeTypes.ELEMENT
ns: Namespace
tag: string
tagType: ElementTypes
isSelfClosing: boolean
props: Array<AttributeNode | DirectiveNode>
children: Array<ElementNode | ExpressionNode | TextNode | CommentNode>
}
export interface TextNode extends Node {
type: NodeTypes.TEXT
content: string
isEmpty: boolean
}
export interface CommentNode extends Node {
type: NodeTypes.COMMENT
content: string
}
export interface AttributeNode extends Node {
type: NodeTypes.ATTRIBUTE
name: string
value: TextNode | undefined
}
export interface DirectiveNode extends Node {
type: NodeTypes.DIRECTIVE
name: string
exp: ExpressionNode | undefined
arg: ExpressionNode | undefined
modifiers: string[]
}
export interface ExpressionNode extends Node {
type: NodeTypes.EXPRESSION
content: string
isStatic: boolean
}
export interface Position {
offset: number // from start of file
line: number
column: number
}
// The node's range. The `start` is inclusive and `end` is exclusive.
// [start, end)
export interface SourceLocation {
start: Position
end: Position
source: string
}