@glimmer/runtime/dist/commonjs/es5/lib/vm/stack.js

Minimal runtime needed to render Glimmer templates

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _vm = require("@glimmer/vm");

var _symbols = require("../symbols");

var _lowLevel = require("./low-level");

var EvaluationStackImpl = /*#__PURE__*/function () {
  // fp -> sp
  function EvaluationStackImpl(stack, registers) {
    if (stack === void 0) {
      stack = [];
    }

    this.stack = stack;
    this[_symbols.REGISTERS] = registers;

    if (false
    /* LOCAL_DEBUG */
    ) {
        Object.seal(this);
      }
  }

  EvaluationStackImpl.restore = function restore(snapshot) {
    return new this(snapshot.slice(), (0, _lowLevel.initializeRegistersWithSP)(snapshot.length - 1));
  };

  var _proto = EvaluationStackImpl.prototype;

  _proto.push = function push(value) {
    this.stack[++this[_symbols.REGISTERS][_vm.$sp]] = value;
  };

  _proto.dup = function dup(position) {
    if (position === void 0) {
      position = this[_symbols.REGISTERS][_vm.$sp];
    }

    this.stack[++this[_symbols.REGISTERS][_vm.$sp]] = this.stack[position];
  };

  _proto.copy = function copy(from, to) {
    this.stack[to] = this.stack[from];
  };

  _proto.pop = function pop(n) {
    if (n === void 0) {
      n = 1;
    }

    var top = this.stack[this[_symbols.REGISTERS][_vm.$sp]];
    this[_symbols.REGISTERS][_vm.$sp] -= n;
    return top;
  };

  _proto.peek = function peek(offset) {
    if (offset === void 0) {
      offset = 0;
    }

    return this.stack[this[_symbols.REGISTERS][_vm.$sp] - offset];
  };

  _proto.get = function get(offset, base) {
    if (base === void 0) {
      base = this[_symbols.REGISTERS][_vm.$fp];
    }

    return this.stack[base + offset];
  };

  _proto.set = function set(value, offset, base) {
    if (base === void 0) {
      base = this[_symbols.REGISTERS][_vm.$fp];
    }

    this.stack[base + offset] = value;
  };

  _proto.slice = function slice(start, end) {
    return this.stack.slice(start, end);
  };

  _proto.capture = function capture(items) {
    var end = this[_symbols.REGISTERS][_vm.$sp] + 1;
    var start = end - items;
    return this.stack.slice(start, end);
  };

  _proto.reset = function reset() {
    this.stack.length = 0;
  };

  _proto.toArray = function toArray() {
    return this.stack.slice(this[_symbols.REGISTERS][_vm.$fp], this[_symbols.REGISTERS][_vm.$sp] + 1);
  };

  return EvaluationStackImpl;
}();

exports.default = EvaluationStackImpl;
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