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kasper.js
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/******/ (() => { // webpackBootstrap
/******/ "use strict";
/******/ var __webpack_modules__ = ({
/***/ "./src/component.ts":
/*!**************************!*\
!*** ./src/component.ts ***!
\**************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */ Component: () => (/* binding */ Component)
/* harmony export */ });
class Component {
constructor(props) {
this.args = {};
this.$onInit = () => { };
this.$onRender = () => { };
this.$onChanges = () => { };
this.$onDestroy = () => { };
if (!props) {
this.args = {};
return;
}
if (props.args) {
this.args = props.args || {};
}
if (props.ref) {
this.ref = props.ref;
}
if (props.transpiler) {
this.transpiler = props.transpiler;
}
}
$doRender() {
if (!this.transpiler) {
return;
}
//this.transpiler?.createComponent(this);
}
}
/***/ }),
/***/ "./src/expression-parser.ts":
/*!**********************************!*\
!*** ./src/expression-parser.ts ***!
\**********************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */ ExpressionParser: () => (/* binding */ ExpressionParser)
/* harmony export */ });
/* harmony import */ var _types_error__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./types/error */ "./src/types/error.ts");
/* harmony import */ var _types_expressions__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./types/expressions */ "./src/types/expressions.ts");
/* harmony import */ var _types_token__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./types/token */ "./src/types/token.ts");
class ExpressionParser {
constructor() {
this.errorLevel = 1;
}
parse(tokens) {
this.current = 0;
this.tokens = tokens;
this.errors = [];
const expressions = [];
while (!this.eof()) {
try {
expressions.push(this.expression());
}
catch (e) {
if (e instanceof _types_error__WEBPACK_IMPORTED_MODULE_0__.KasperError) {
this.errors.push(`Parse Error (${e.line}:${e.col}) => ${e.value}`);
}
else {
this.errors.push(`${e}`);
if (this.errors.length > 100) {
this.errors.push("Parse Error limit exceeded");
return expressions;
}
}
this.synchronize();
}
}
return expressions;
}
match(...types) {
for (const type of types) {
if (this.check(type)) {
this.advance();
return true;
}
}
return false;
}
advance() {
if (!this.eof()) {
this.current++;
}
return this.previous();
}
peek() {
return this.tokens[this.current];
}
previous() {
return this.tokens[this.current - 1];
}
check(type) {
return this.peek().type === type;
}
eof() {
return this.check(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Eof);
}
consume(type, message) {
if (this.check(type)) {
return this.advance();
}
return this.error(this.peek(), message + `, unexpected token "${this.peek().lexeme}"`);
}
error(token, message) {
throw new _types_error__WEBPACK_IMPORTED_MODULE_0__.KasperError(message, token.line, token.col);
}
synchronize() {
do {
if (this.check(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Semicolon) || this.check(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightBrace)) {
this.advance();
return;
}
this.advance();
} while (!this.eof());
}
foreach(tokens) {
this.current = 0;
this.tokens = tokens;
this.errors = [];
const name = this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Identifier, `Expected an identifier inside "each" statement`);
let key = null;
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.With)) {
key = this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Identifier, `Expected a "key" identifier after "with" keyword in foreach statement`);
}
this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Of, `Expected "of" keyword inside foreach statement`);
const iterable = this.expression();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Each(name, key, iterable, name.line);
}
expression() {
const expression = this.assignment();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Semicolon)) {
// consume all semicolons
// tslint:disable-next-line
while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Semicolon)) { }
}
return expression;
}
assignment() {
const expr = this.ternary();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Equal, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.PlusEqual, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.MinusEqual, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.StarEqual, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.SlashEqual)) {
const operator = this.previous();
let value = this.assignment();
if (expr instanceof _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Variable) {
const name = expr.name;
if (operator.type !== _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Equal) {
value = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Binary(new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Variable(name, name.line), operator, value, operator.line);
}
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Assign(name, value, name.line);
}
else if (expr instanceof _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Get) {
if (operator.type !== _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Equal) {
value = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Binary(new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Get(expr.entity, expr.key, expr.type, expr.line), operator, value, operator.line);
}
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Set(expr.entity, expr.key, value, expr.line);
}
this.error(operator, `Invalid l-value, is not an assigning target.`);
}
return expr;
}
ternary() {
const expr = this.nullCoalescing();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Question)) {
const thenExpr = this.ternary();
this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Colon, `Expected ":" after ternary ? expression`);
const elseExpr = this.ternary();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Ternary(expr, thenExpr, elseExpr, expr.line);
}
return expr;
}
nullCoalescing() {
const expr = this.logicalOr();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.QuestionQuestion)) {
const rightExpr = this.nullCoalescing();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.NullCoalescing(expr, rightExpr, expr.line);
}
return expr;
}
logicalOr() {
let expr = this.logicalAnd();
while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Or)) {
const operator = this.previous();
const right = this.logicalAnd();
expr = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Logical(expr, operator, right, operator.line);
}
return expr;
}
logicalAnd() {
let expr = this.equality();
while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.And)) {
const operator = this.previous();
const right = this.equality();
expr = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Logical(expr, operator, right, operator.line);
}
return expr;
}
equality() {
let expr = this.addition();
while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.BangEqual, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.EqualEqual, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Greater, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.GreaterEqual, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Less, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.LessEqual)) {
const operator = this.previous();
const right = this.addition();
expr = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Binary(expr, operator, right, operator.line);
}
return expr;
}
addition() {
let expr = this.modulus();
while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Minus, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Plus)) {
const operator = this.previous();
const right = this.modulus();
expr = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Binary(expr, operator, right, operator.line);
}
return expr;
}
modulus() {
let expr = this.multiplication();
while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Percent)) {
const operator = this.previous();
const right = this.multiplication();
expr = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Binary(expr, operator, right, operator.line);
}
return expr;
}
multiplication() {
let expr = this.typeof();
while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Slash, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Star)) {
const operator = this.previous();
const right = this.typeof();
expr = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Binary(expr, operator, right, operator.line);
}
return expr;
}
typeof() {
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Typeof)) {
const operator = this.previous();
const value = this.typeof();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Typeof(value, operator.line);
}
return this.unary();
}
unary() {
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Minus, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Bang, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Dollar, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.PlusPlus, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.MinusMinus)) {
const operator = this.previous();
const right = this.unary();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Unary(operator, right, operator.line);
}
return this.newKeyword();
}
newKeyword() {
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.New)) {
const keyword = this.previous();
const construct = this.call();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.New(construct, keyword.line);
}
return this.call();
}
call() {
let expr = this.primary();
let consumed = true;
do {
consumed = false;
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.LeftParen)) {
consumed = true;
do {
const args = [];
if (!this.check(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightParen)) {
do {
args.push(this.expression());
} while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Comma));
}
const paren = this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightParen, `Expected ")" after arguments`);
expr = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Call(expr, paren, args, paren.line);
} while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.LeftParen));
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Dot, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.QuestionDot)) {
consumed = true;
expr = this.dotGet(expr, this.previous());
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.LeftBracket)) {
consumed = true;
expr = this.bracketGet(expr, this.previous());
}
} while (consumed);
return expr;
}
dotGet(expr, operator) {
const name = this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Identifier, `Expect property name after '.'`);
const key = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Key(name, name.line);
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Get(expr, key, operator.type, name.line);
}
bracketGet(expr, operator) {
let key = null;
if (!this.check(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightBracket)) {
key = this.expression();
}
this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightBracket, `Expected "]" after an index`);
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Get(expr, key, operator.type, operator.line);
}
primary() {
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.False)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Literal(false, this.previous().line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.True)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Literal(true, this.previous().line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Null)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Literal(null, this.previous().line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Undefined)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Literal(undefined, this.previous().line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Number) || this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.String)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Literal(this.previous().literal, this.previous().line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Template)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Template(this.previous().literal, this.previous().line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Identifier)) {
const identifier = this.previous();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.PlusPlus)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Postfix(identifier, 1, identifier.line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.MinusMinus)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Postfix(identifier, -1, identifier.line);
}
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Variable(identifier, identifier.line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.LeftParen)) {
const expr = this.expression();
this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightParen, `Expected ")" after expression`);
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Grouping(expr, expr.line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.LeftBrace)) {
return this.dictionary();
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.LeftBracket)) {
return this.list();
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Void)) {
const expr = this.expression();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Void(expr, this.previous().line);
}
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Debug)) {
const expr = this.expression();
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Debug(expr, this.previous().line);
}
throw this.error(this.peek(), `Expected expression, unexpected token "${this.peek().lexeme}"`);
// unreacheable code
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Literal(null, 0);
}
dictionary() {
const leftBrace = this.previous();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightBrace)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Dictionary([], this.previous().line);
}
const properties = [];
do {
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.String, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Identifier, _types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Number)) {
const key = this.previous();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Colon)) {
const value = this.expression();
properties.push(new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Set(null, new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Key(key, key.line), value, key.line));
}
else {
const value = new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Variable(key, key.line);
properties.push(new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Set(null, new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Key(key, key.line), value, key.line));
}
}
else {
this.error(this.peek(), `String, Number or Identifier expected as a Key of Dictionary {, unexpected token ${this.peek().lexeme}`);
}
} while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Comma));
this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightBrace, `Expected "}" after object literal`);
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.Dictionary(properties, leftBrace.line);
}
list() {
const values = [];
const leftBracket = this.previous();
if (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightBracket)) {
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.List([], this.previous().line);
}
do {
values.push(this.expression());
} while (this.match(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.Comma));
this.consume(_types_token__WEBPACK_IMPORTED_MODULE_2__.TokenType.RightBracket, `Expected "]" after array declaration`);
return new _types_expressions__WEBPACK_IMPORTED_MODULE_1__.List(values, leftBracket.line);
}
}
/***/ }),
/***/ "./src/interpreter.ts":
/*!****************************!*\
!*** ./src/interpreter.ts ***!
\****************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */ Interpreter: () => (/* binding */ Interpreter)
/* harmony export */ });
/* harmony import */ var _types_expressions__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./types/expressions */ "./src/types/expressions.ts");
/* harmony import */ var _scanner__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./scanner */ "./src/scanner.ts");
/* harmony import */ var _expression_parser__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./expression-parser */ "./src/expression-parser.ts");
/* harmony import */ var _scope__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./scope */ "./src/scope.ts");
/* harmony import */ var _types_token__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ./types/token */ "./src/types/token.ts");
class Interpreter {
constructor() {
this.scope = new _scope__WEBPACK_IMPORTED_MODULE_3__.Scope();
this.errors = [];
this.scanner = new _scanner__WEBPACK_IMPORTED_MODULE_1__.Scanner();
this.parser = new _expression_parser__WEBPACK_IMPORTED_MODULE_2__.ExpressionParser();
}
evaluate(expr) {
return (expr.result = expr.accept(this));
}
error(message) {
throw new Error(`Runtime Error => ${message}`);
}
visitVariableExpr(expr) {
return this.scope.get(expr.name.lexeme);
}
visitAssignExpr(expr) {
const value = this.evaluate(expr.value);
this.scope.set(expr.name.lexeme, value);
return value;
}
visitKeyExpr(expr) {
return expr.name.literal;
}
visitGetExpr(expr) {
const entity = this.evaluate(expr.entity);
const key = this.evaluate(expr.key);
if (!entity && expr.type === _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.QuestionDot) {
return undefined;
}
return entity[key];
}
visitSetExpr(expr) {
const entity = this.evaluate(expr.entity);
const key = this.evaluate(expr.key);
const value = this.evaluate(expr.value);
entity[key] = value;
return value;
}
visitPostfixExpr(expr) {
const value = this.scope.get(expr.name.lexeme);
const newValue = value + expr.increment;
this.scope.set(expr.name.lexeme, newValue);
return value;
}
visitListExpr(expr) {
const values = [];
for (const expression of expr.value) {
const value = this.evaluate(expression);
values.push(value);
}
return values;
}
templateParse(source) {
const tokens = this.scanner.scan(source);
const expressions = this.parser.parse(tokens);
if (this.parser.errors.length) {
this.error(`Template string error: ${this.parser.errors[0]}`);
}
let result = "";
for (const expression of expressions) {
result += this.evaluate(expression).toString();
}
return result;
}
visitTemplateExpr(expr) {
const result = expr.value.replace(/\{\{([\s\S]+?)\}\}/g, (m, placeholder) => {
return this.templateParse(placeholder);
});
return result;
}
visitBinaryExpr(expr) {
const left = this.evaluate(expr.left);
const right = this.evaluate(expr.right);
switch (expr.operator.type) {
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Minus:
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.MinusEqual:
return left - right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Slash:
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.SlashEqual:
return left / right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Star:
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.StarEqual:
return left * right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Percent:
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.PercentEqual:
return left % right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Plus:
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.PlusEqual:
return left + right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Pipe:
return left | right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Caret:
return left ^ right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Greater:
return left > right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.GreaterEqual:
return left >= right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Less:
return left < right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.LessEqual:
return left <= right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.EqualEqual:
return left === right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.BangEqual:
return left !== right;
default:
this.error("Unknown binary operator " + expr.operator);
return null; // unreachable
}
}
visitLogicalExpr(expr) {
const left = this.evaluate(expr.left);
if (expr.operator.type === _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Or) {
if (left) {
return left;
}
}
else {
if (!left) {
return left;
}
}
return this.evaluate(expr.right);
}
visitTernaryExpr(expr) {
return this.evaluate(expr.condition).isTruthy()
? this.evaluate(expr.thenExpr)
: this.evaluate(expr.elseExpr);
}
visitNullCoalescingExpr(expr) {
const left = this.evaluate(expr.left);
if (!left) {
return this.evaluate(expr.right);
}
return left;
}
visitGroupingExpr(expr) {
return this.evaluate(expr.expression);
}
visitLiteralExpr(expr) {
return expr.value;
}
visitUnaryExpr(expr) {
const right = this.evaluate(expr.right);
switch (expr.operator.type) {
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Minus:
return -right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.Bang:
return !right;
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.PlusPlus:
case _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.MinusMinus:
const newValue = Number(right) + (expr.operator.type === _types_token__WEBPACK_IMPORTED_MODULE_4__.TokenType.PlusPlus ? 1 : -1);
if (expr.right instanceof _types_expressions__WEBPACK_IMPORTED_MODULE_0__.Variable) {
this.scope.set(expr.right.name.lexeme, newValue);
}
else if (expr.right instanceof _types_expressions__WEBPACK_IMPORTED_MODULE_0__.Get) {
const assign = new _types_expressions__WEBPACK_IMPORTED_MODULE_0__.Set(expr.right.entity, expr.right.key, new _types_expressions__WEBPACK_IMPORTED_MODULE_0__.Literal(newValue, expr.line), expr.line);
this.evaluate(assign);
}
else {
this.error(`Invalid right-hand side expression in prefix operation: ${expr.right}`);
}
return newValue;
default:
this.error(`Unknown unary operator ' + expr.operator`);
return null; // should be unreachable
}
}
visitCallExpr(expr) {
// verify callee is a function
const callee = this.evaluate(expr.callee);
if (typeof callee !== "function") {
this.error(`${callee} is not a function`);
}
// evaluate function arguments
const args = [];
for (const argument of expr.args) {
args.push(this.evaluate(argument));
}
// execute function
if (expr.callee instanceof _types_expressions__WEBPACK_IMPORTED_MODULE_0__.Get &&
(expr.callee.entity instanceof _types_expressions__WEBPACK_IMPORTED_MODULE_0__.Variable ||
expr.callee.entity instanceof _types_expressions__WEBPACK_IMPORTED_MODULE_0__.Grouping)) {
return callee.apply(expr.callee.entity.result, args);
}
else {
return callee(...args);
}
}
visitNewExpr(expr) {
const newCall = expr.clazz;
// internal class definition instance
const clazz = this.evaluate(newCall.callee);
if (typeof clazz !== "function") {
this.error(`'${clazz}' is not a class. 'new' statement must be used with classes.`);
}
const args = [];
for (const arg of newCall.args) {
args.push(this.evaluate(arg));
}
return new clazz(...args);
}
visitDictionaryExpr(expr) {
const dict = {};
for (const property of expr.properties) {
const key = this.evaluate(property.key);
const value = this.evaluate(property.value);
dict[key] = value;
}
return dict;
}
visitTypeofExpr(expr) {
return typeof this.evaluate(expr.value);
}
visitEachExpr(expr) {
return [
expr.name.lexeme,
expr.key ? expr.key.lexeme : null,
this.evaluate(expr.iterable),
];
}
visitVoidExpr(expr) {
this.evaluate(expr.value);
return "";
}
visitDebugExpr(expr) {
const result = this.evaluate(expr.value);
console.log(result);
return "";
}
}
/***/ }),
/***/ "./src/kasper.ts":
/*!***********************!*\
!*** ./src/kasper.ts ***!
\***********************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */ Kasper: () => (/* binding */ Kasper),
/* harmony export */ KasperInit: () => (/* binding */ KasperInit),
/* harmony export */ KasperRenderer: () => (/* binding */ KasperRenderer),
/* harmony export */ KasperState: () => (/* binding */ KasperState),
/* harmony export */ execute: () => (/* binding */ execute),
/* harmony export */ kasperState: () => (/* binding */ kasperState),
/* harmony export */ render: () => (/* binding */ render),
/* harmony export */ transpile: () => (/* binding */ transpile)
/* harmony export */ });
/* harmony import */ var _template_parser__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./template-parser */ "./src/template-parser.ts");
/* harmony import */ var _transpiler__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./transpiler */ "./src/transpiler.ts");
function execute(source) {
const parser = new _template_parser__WEBPACK_IMPORTED_MODULE_0__.TemplateParser();
const nodes = parser.parse(source);
if (parser.errors.length) {
return JSON.stringify(parser.errors);
}
const result = JSON.stringify(nodes);
return result;
}
function transpile(source, entity, container) {
const parser = new _template_parser__WEBPACK_IMPORTED_MODULE_0__.TemplateParser();
const nodes = parser.parse(source);
const transpiler = new _transpiler__WEBPACK_IMPORTED_MODULE_1__.Transpiler();
const result = transpiler.transpile(nodes, entity, container);
return result;
}
function render(entity) {
debugger;
if (typeof window === "undefined") {
console.error("kasper requires a browser environment to render templates.");
return;
}
const template = document.getElementsByTagName("template")[0];
if (!template) {
console.error("No template found in the document.");
return;
}
const container = document.getElementsByTagName("kasper-app");
const node = transpile(template.innerHTML, entity, container[0]);
document.body.appendChild(node);
}
class KasperRenderer {
constructor() {
this.entity = undefined;
this.changes = 1;
this.dirty = false;
this.render = () => {
this.changes += 1;
if (!this.entity) {
// do not render if entity is not set
return;
}
if (typeof this.entity?.$onChanges === "function") {
this.entity.$onChanges();
}
if (this.changes > 0 && !this.dirty) {
this.dirty = true;
queueMicrotask(() => {
render(this.entity);
// console.log(this.changes);
if (typeof this.entity?.$onRender === "function") {
this.entity.$onRender();
}
this.dirty = false;
this.changes = 0;
});
}
};
}
}
let renderer = new KasperRenderer();
class KasperState {
constructor(initial) {
this._value = initial;
}
get value() {
return this._value;
}
set(value) {
this._value = value;
renderer.render();
}
toString() {
return this._value.toString();
}
}
function kasperState(initial) {
return new KasperState(initial);
}
function Kasper(Component) {
const entity = new Component();
renderer.entity = entity;
renderer.render();
entity.$doRender();
if (typeof entity.$onInit === "function") {
entity.$onInit();
}
}
function createComponent(transpiler, tag, registry) {
const element = document.createElement(tag);
const component = new registry[tag].component();
component.$onInit();
const nodes = registry[tag].nodes;
return transpiler.transpile(nodes, component, element);
}
function normalizeRegistry(registry, parser) {
const result = { ...registry };
for (const key of Object.keys(registry)) {
const entry = registry[key];
entry.template = document.querySelector(entry.selector);
entry.nodes = parser.parse(entry.template.innerHTML);
}
return result;
}
function KasperInit(config) {
const parser = new _template_parser__WEBPACK_IMPORTED_MODULE_0__.TemplateParser();
const root = document.querySelector(config.root || "body");
const registry = normalizeRegistry(config.registry, parser);
const transpiler = new _transpiler__WEBPACK_IMPORTED_MODULE_1__.Transpiler({ registry });
const entryTag = config.entry || "kasper-app";
const htmlNodes = createComponent(transpiler, entryTag, registry);
root.appendChild(htmlNodes);
}
/***/ }),
/***/ "./src/scanner.ts":
/*!************************!*\
!*** ./src/scanner.ts ***!
\************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */ Scanner: () => (/* binding */ Scanner)
/* harmony export */ });
/* harmony import */ var _utils__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./utils */ "./src/utils.ts");
/* harmony import */ var _types_token__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./types/token */ "./src/types/token.ts");
class Scanner {
scan(source) {
this.source = source;
this.tokens = [];
this.errors = [];
this.current = 0;
this.start = 0;
this.line = 1;
this.col = 1;
while (!this.eof()) {
this.start = this.current;
try {
this.getToken();
}
catch (e) {
this.errors.push(`${e}`);
if (this.errors.length > 100) {
this.errors.push("Error limit exceeded");
return this.tokens;
}
}
}
this.tokens.push(new _types_token__WEBPACK_IMPORTED_MODULE_1__.Token(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Eof, "", null, this.line, 0));
return this.tokens;
}
eof() {
return this.current >= this.source.length;
}
advance() {
if (this.peek() === "\n") {
this.line++;
this.col = 0;
}
this.current++;
this.col++;
return this.source.charAt(this.current - 1);
}
addToken(tokenType, literal) {
const text = this.source.substring(this.start, this.current);
this.tokens.push(new _types_token__WEBPACK_IMPORTED_MODULE_1__.Token(tokenType, text, literal, this.line, this.col));
}
match(expected) {
if (this.eof()) {
return false;
}
if (this.source.charAt(this.current) !== expected) {
return false;
}
this.current++;
return true;
}
peek() {
if (this.eof()) {
return "\0";
}
return this.source.charAt(this.current);
}
peekNext() {
if (this.current + 1 >= this.source.length) {
return "\0";
}
return this.source.charAt(this.current + 1);
}
comment() {
while (this.peek() !== "\n" && !this.eof()) {
this.advance();
}
}
multilineComment() {
while (!this.eof() && !(this.peek() === "*" && this.peekNext() === "/")) {
this.advance();
}
if (this.eof()) {
this.error('Unterminated comment, expecting closing "*/"');
}
else {
// the closing slash '*/'
this.advance();
this.advance();
}
}
string(quote) {
while (this.peek() !== quote && !this.eof()) {
this.advance();
}
// Unterminated string.
if (this.eof()) {
this.error(`Unterminated string, expecting closing ${quote}`);
return;
}
// The closing ".
this.advance();
// Trim the surrounding quotes.
const value = this.source.substring(this.start + 1, this.current - 1);
this.addToken(quote !== "`" ? _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.String : _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Template, value);
}
number() {
// gets integer part
while (_utils__WEBPACK_IMPORTED_MODULE_0__.isDigit(this.peek())) {
this.advance();
}
// checks for fraction
if (this.peek() === "." && _utils__WEBPACK_IMPORTED_MODULE_0__.isDigit(this.peekNext())) {
this.advance();
}
// gets fraction part
while (_utils__WEBPACK_IMPORTED_MODULE_0__.isDigit(this.peek())) {
this.advance();
}
// checks for exponent
if (this.peek().toLowerCase() === "e") {
this.advance();
if (this.peek() === "-" || this.peek() === "+") {
this.advance();
}
}
while (_utils__WEBPACK_IMPORTED_MODULE_0__.isDigit(this.peek())) {
this.advance();
}
const value = this.source.substring(this.start, this.current);
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Number, Number(value));
}
identifier() {
while (_utils__WEBPACK_IMPORTED_MODULE_0__.isAlphaNumeric(this.peek())) {
this.advance();
}
const value = this.source.substring(this.start, this.current);
const capitalized = _utils__WEBPACK_IMPORTED_MODULE_0__.capitalize(value);
if (_utils__WEBPACK_IMPORTED_MODULE_0__.isKeyword(capitalized)) {
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType[capitalized], value);
}
else {
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Identifier, value);
}
}
getToken() {
const char = this.advance();
switch (char) {
case "(":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.LeftParen, null);
break;
case ")":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.RightParen, null);
break;
case "[":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.LeftBracket, null);
break;
case "]":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.RightBracket, null);
break;
case "{":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.LeftBrace, null);
break;
case "}":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.RightBrace, null);
break;
case ",":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Comma, null);
break;
case ";":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Semicolon, null);
break;
case "^":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Caret, null);
break;
case "$":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Dollar, null);
break;
case "#":
this.addToken(_types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Hash, null);
break;
case ":":
this.addToken(this.match("=") ? _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Arrow : _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Colon, null);
break;
case "*":
this.addToken(this.match("=") ? _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.StarEqual : _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Star, null);
break;
case "%":
this.addToken(this.match("=") ? _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.PercentEqual : _types_token__WEBPACK_IMPORTED_MODULE_1__.TokenType.Percent, null);
break;