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Expr.ts
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Expr.ts
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import {Visitor} from "./interfaces/Visitor";
import {Token} from "./Token";
import { VarDeclaration } from "./Stmt";
export abstract class Expr {
abstract accept(visitor: Visitor): any;
constructor (readonly first: Token) {}
}
export class If extends Expr {
constructor(public condition: Expr, public thenBranch: Expr, public elseBranch: Expr) {
super(condition.first);
}
accept(visitor: Visitor) {
return visitor.visitIfExpr(this);
}
toString() {
return "If expression"
}
}
export class Binary extends Expr {
constructor(public left: Expr, public operator: Token, public right: Expr) {
super(left.first);
}
accept(visitor: Visitor) {
return visitor.visitBinaryExpr(this);
}
toString() {
return "Binary expression"
}
}
export class Grouping extends Expr {
constructor(first: Token, public expression: Expr) {
super(first);
}
accept(visitor: Visitor) {
return visitor.visitGroupingExpr(this);
}
toString() {
return "Grouping expression"
}
}
export class Literal extends Expr {
constructor(first: Token, public value: any) {
super(first);
}
accept(visitor: Visitor) {
return visitor.visitLiteralExpr(this);
}
toString() {
return "Literal expression"
}
}
export class Variable extends Expr {
constructor(public name: Token) {
super(name);
}
accept(visitor: Visitor) {
return visitor.visitVariableExpr(this);
}
toString() {
return "Variable expression"
}
}
export class Call extends Expr {
constructor(public callee: Expr, public paren: Token, public argumentList: Expr[]) {
super(callee.first);
}
accept(visitor: Visitor) {
return visitor.visitCallExpr(this);
}
toString() {
return "Call expression"
}
}
export class ListLiteral extends Expr {
constructor(first: Token, public list: Expr[]) {
super(first);
}
accept(visitor: Visitor) {
return visitor.visitListLiteralExpr(this);
}
toString() {
return "ListLiteral expression"
}
}
export class RecordLiteral extends Expr {
constructor(first: Token, public record: {[name: string]: Expr}, public keyTokens: {[name: string]: Token}, public target: Variable | Get) {
super(first);
}
accept(visitor: Visitor) {
return visitor.visitRecordLiteralExpr(this);
}
toString() {
return "RecordLiteral expression"
}
}
export class Function extends Expr {
constructor(first: Token, public params: Token[], public locals: {[name: string]: VarDeclaration}, public body: Expr) {
super(first);
}
accept(visitor: Visitor) {
return visitor.visitFunctionExpr(this);
}
toString() {
return "Function expression"
}
}
export class Get extends Expr {
constructor(public object: Expr, public name: Token, public bracket?: Token) {
super(object.first);
}
accept(visitor: Visitor) {
return visitor.visitGetExpr(this);
}
toString() {
return "Get expression"
}
}
export class Case extends Expr {
constructor(first: Token, public expr: Expr, public cases: {subtype: Token | Literal, parameters: Token[], isRecord: boolean, result: Expr}[]) {
super(first);
}
accept(visitor: Visitor) {
return visitor.visitCaseExpr(this);
}
toString() {
return "Case expression"
}
}