1 files changed, 146 insertions, 0 deletions
diff --git a/packages/astro-parser/src/interfaces.ts b/packages/astro-parser/src/interfaces.ts
new file mode 100644
index 000000000..efe971941
--- /dev/null
+++ b/packages/astro-parser/src/interfaces.ts
@@ -0,0 +1,146 @@
+import type { SourceMap } from 'magic-string';
+export type { CompileError } from './utils/error';
+
+export interface BaseNode {
+  start: number;
+  end: number;
+  type: string;
+  children?: TemplateNode[];
+  [prop_name: string]: any;
+}
+
+export interface Fragment extends BaseNode {
+  type: 'Fragment';
+  children: TemplateNode[];
+}
+
+export interface Text extends BaseNode {
+  type: 'Text';
+  data: string;
+  raw: string;
+}
+
+export interface Attribute extends BaseNode {
+  type: 'Attribute';
+  name: string;
+  value: Text[];
+}
+
+export interface MustacheTag extends BaseNode {
+  type: 'MustacheTag';
+  content: string;
+}
+
+export type DirectiveType = 'Action' | 'Animation' | 'Binding' | 'Class' | 'EventHandler' | 'Let' | 'Ref' | 'Transition';
+
+interface BaseDirective extends BaseNode {
+  type: DirectiveType;
+  expression: null | Node;
+  name: string;
+  modifiers: string[];
+}
+
+export interface Transition extends BaseDirective {
+  type: 'Transition';
+  intro: boolean;
+  outro: boolean;
+}
+
+export type Directive = BaseDirective | Transition;
+
+export type TemplateNode = Text | MustacheTag | BaseNode | Directive | Transition;
+
+export interface Expression {
+  type: 'Expression';
+  start: number;
+  end: number;
+  codeChunks: string[];
+  children: BaseNode[];
+}
+
+export interface Parser {
+  readonly template: string;
+  readonly filename?: string;
+
+  index: number;
+  stack: Node[];
+
+  html: Node;
+  css: Node;
+  js: Node;
+  meta_tags: Map<string, string>;
+}
+
+export interface Script extends BaseNode {
+  type: 'Script';
+  context: 'runtime' | 'setup';
+  content: string;
+}
+
+export interface Style extends BaseNode {
+  type: 'Style';
+  attributes: any[]; // TODO
+  content: {
+    start: number;
+    end: number;
+    styles: string;
+  };
+}
+
+export interface Ast {
+  html: TemplateNode;
+  css: Style;
+  module: Script;
+  // instance: Script;
+}
+
+export interface Warning {
+  start?: { line: number; column: number; pos?: number };
+  end?: { line: number; column: number };
+  pos?: number;
+  code: string;
+  message: string;
+  filename?: string;
+  frame?: string;
+  toString: () => string;
+}
+
+export type ModuleFormat = 'esm' | 'cjs';
+
+export type CssHashGetter = (args: { name: string; filename: string | undefined; css: string; hash: (input: string) => string }) => string;
+
+export interface Visitor {
+  enter: (node: Node) => void;
+  leave?: (node: Node) => void;
+}
+
+export interface AppendTarget {
+  slots: Record<string, string>;
+  slot_stack: string[];
+}
+
+export interface Var {
+  name: string;
+  export_name?: string; // the `bar` in `export { foo as bar }`
+  injected?: boolean;
+  module?: boolean;
+  mutated?: boolean;
+  reassigned?: boolean;
+  referenced?: boolean; // referenced from template scope
+  referenced_from_script?: boolean; // referenced from script
+  writable?: boolean;
+
+  // used internally, but not exposed
+  global?: boolean;
+  internal?: boolean; // event handlers, bindings
+  initialised?: boolean;
+  hoistable?: boolean;
+  subscribable?: boolean;
+  is_reactive_dependency?: boolean;
+  imported?: boolean;
+}
+
+export interface CssResult {
+  code: string;
+  map: SourceMap;
+}