move ast types into seperate ts file (#169)

src/lang/abstractSyntaxTreeTypes.ts

@@ -0,0 +1,177 @@
+export type SyntaxType =
+  | 'Program'
+  | 'ExpressionStatement'
+  | 'BinaryExpression'
+  | 'CallExpression'
+  | 'Identifier'
+  | 'BlockStatement'
+  | 'ReturnStatement'
+  | 'VariableDeclaration'
+  | 'VariableDeclarator'
+  | 'MemberExpression'
+  | 'ArrayExpression'
+  | 'ObjectExpression'
+  | 'ObjectProperty'
+  | 'FunctionExpression'
+  | 'PipeExpression'
+  | 'PipeSubstitution'
+  | 'Literal'
+  | 'NoneCodeNode'
+  | 'UnaryExpression'
+
+export interface Program {
+  type: SyntaxType
+  start: number
+  end: number
+  body: BodyItem[]
+  nonCodeMeta: NoneCodeMeta
+}
+interface GeneralStatement {
+  type: SyntaxType
+  start: number
+  end: number
+}
+
+export type BodyItem =
+  | ExpressionStatement
+  | VariableDeclaration
+  | ReturnStatement
+
+export type Value =
+  | Literal
+  | Identifier
+  | BinaryExpression
+  | FunctionExpression
+  | CallExpression
+  | PipeExpression
+  | PipeSubstitution
+  | ArrayExpression
+  | ObjectExpression
+  | MemberExpression
+  | UnaryExpression
+
+export type BinaryPart =
+  | Literal
+  | Identifier
+  | BinaryExpression
+  | CallExpression
+  | UnaryExpression
+
+export interface NoneCodeNode extends GeneralStatement {
+  type: 'NoneCodeNode'
+  value: string
+}
+
+export interface NoneCodeMeta {
+  // Stores the whitespace/comments that go after the statement who's index we're using here
+  [statementIndex: number]: NoneCodeNode
+  // Which is why we also need `start` for and whitespace at the start of the file/block
+  start?: NoneCodeNode
+}
+
+export interface ExpressionStatement extends GeneralStatement {
+  type: 'ExpressionStatement'
+  expression: Value
+}
+
+export interface CallExpression extends GeneralStatement {
+  type: 'CallExpression'
+  callee: Identifier
+  arguments: Value[]
+  optional: boolean
+}
+
+export interface VariableDeclaration extends GeneralStatement {
+  type: 'VariableDeclaration'
+  declarations: VariableDeclarator[]
+  kind: 'const' | 'unknown' | 'fn' //| "solid" | "surface" | "face"
+}
+
+export interface VariableDeclarator extends GeneralStatement {
+  type: 'VariableDeclarator'
+  id: Identifier
+  init: Value
+}
+
+export interface Literal extends GeneralStatement {
+  type: 'Literal'
+  value: string | number | boolean | null
+  raw: string
+}
+
+export interface Identifier extends GeneralStatement {
+  type: 'Identifier'
+  name: string
+}
+
+export interface PipeSubstitution extends GeneralStatement {
+  type: 'PipeSubstitution'
+}
+
+export interface ArrayExpression extends GeneralStatement {
+  type: 'ArrayExpression'
+  elements: Value[]
+}
+
+export interface ObjectExpression extends GeneralStatement {
+  type: 'ObjectExpression'
+  properties: ObjectProperty[]
+}
+
+export interface ObjectProperty extends GeneralStatement {
+  type: 'ObjectProperty'
+  key: Identifier
+  value: Value
+}
+
+export interface MemberExpression extends GeneralStatement {
+  type: 'MemberExpression'
+  object: MemberExpression | Identifier
+  property: Identifier | Literal
+  computed: boolean
+}
+
+export interface ObjectKeyInfo {
+  key: Identifier | Literal
+  index: number
+  computed: boolean
+}
+
+export interface BinaryExpression extends GeneralStatement {
+  type: 'BinaryExpression'
+  operator: string
+  left: BinaryPart
+  right: BinaryPart
+}
+
+export interface UnaryExpression extends GeneralStatement {
+  type: 'UnaryExpression'
+  operator: '-' | '!'
+  argument: BinaryPart
+}
+
+export interface PipeExpression extends GeneralStatement {
+  type: 'PipeExpression'
+  body: Value[]
+  nonCodeMeta: NoneCodeMeta
+}
+
+export interface FunctionExpression extends GeneralStatement {
+  type: 'FunctionExpression'
+  id: Identifier | null
+  params: Identifier[]
+  body: BlockStatement
+}
+
+export interface BlockStatement extends GeneralStatement {
+  type: 'BlockStatement'
+  body: BodyItem[]
+  nonCodeMeta: NoneCodeMeta
+}
+
+export interface ReturnStatement extends GeneralStatement {
+  type: 'ReturnStatement'
+  argument: Value
+}
+
+export type All = Program | ExpressionStatement[] | BinaryExpression | Literal