cql-execution/lib/elm/reusable.js

An execution framework for the Clinical Quality Language (CQL)

// Generated by CoffeeScript 1.12.7
(function() {
  var Expression, ExpressionDef, ExpressionRef, FunctionDef, FunctionRef, IdentifierRef, OperandRef, build,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Expression = require('./expression').Expression;

  build = require('./builder').build;

  module.exports.ExpressionDef = ExpressionDef = (function(superClass) {
    extend(ExpressionDef, superClass);

    function ExpressionDef(json) {
      ExpressionDef.__super__.constructor.apply(this, arguments);
      this.name = json.name;
      this.context = json.context;
      this.expression = build(json.expression);
    }

    ExpressionDef.prototype.exec = function(ctx) {
      var ref, value;
      value = (ref = this.expression) != null ? ref.execute(ctx) : void 0;
      ctx.rootContext().set(this.name, value);
      return value;
    };

    return ExpressionDef;

  })(Expression);

  module.exports.ExpressionRef = ExpressionRef = (function(superClass) {
    extend(ExpressionRef, superClass);

    function ExpressionRef(json) {
      ExpressionRef.__super__.constructor.apply(this, arguments);
      this.name = json.name;
      this.library = json.libraryName;
    }

    ExpressionRef.prototype.exec = function(ctx) {
      var value;
      ctx = this.library ? ctx.getLibraryContext(this.library) : ctx;
      value = ctx.get(this.name);
      if (value instanceof Expression) {
        value = value.execute(ctx);
      }
      return value;
    };

    return ExpressionRef;

  })(Expression);

  module.exports.FunctionDef = FunctionDef = (function(superClass) {
    extend(FunctionDef, superClass);

    function FunctionDef(json) {
      FunctionDef.__super__.constructor.apply(this, arguments);
      this.name = json.name;
      this.expression = build(json.expression);
      this.parameters = json.operand;
    }

    FunctionDef.prototype.exec = function(ctx) {
      return this;
    };

    return FunctionDef;

  })(Expression);

  module.exports.FunctionRef = FunctionRef = (function(superClass) {
    extend(FunctionRef, superClass);

    function FunctionRef(json) {
      FunctionRef.__super__.constructor.apply(this, arguments);
      this.name = json.name;
      this.library = json.libraryName;
    }

    FunctionRef.prototype.exec = function(ctx) {
      var args, child_ctx, functionDef, i, j, len, p, ref, ref1, ref2;
      functionDef = this.library ? (ref = ctx.get(this.library)) != null ? ref.get(this.name) : void 0 : ctx.get(this.name);
      args = this.execArgs(ctx);
      child_ctx = this.library ? (ref1 = ctx.getLibraryContext(this.library)) != null ? ref1.childContext() : void 0 : ctx.childContext();
      if (args.length !== functionDef.parameters.length) {
        throw new Error("incorrect number of arguments supplied");
      }
      ref2 = functionDef.parameters;
      for (i = j = 0, len = ref2.length; j < len; i = ++j) {
        p = ref2[i];
        child_ctx.set(p.name, args[i]);
      }
      return functionDef.expression.execute(child_ctx);
    };

    return FunctionRef;

  })(Expression);

  module.exports.OperandRef = OperandRef = (function(superClass) {
    extend(OperandRef, superClass);

    function OperandRef(json) {
      this.name = json.name;
    }

    OperandRef.prototype.exec = function(ctx) {
      return ctx.get(this.name);
    };

    return OperandRef;

  })(Expression);

  module.exports.IdentifierRef = IdentifierRef = (function(superClass) {
    extend(IdentifierRef, superClass);

    function IdentifierRef(json) {
      IdentifierRef.__super__.constructor.apply(this, arguments);
      this.name = json.name;
      this.library = json.libraryName;
    }

    IdentifierRef.prototype.exec = function(ctx) {
      var _obj, curr_obj, curr_val, j, len, part, parts, ref, ref1, ref2, val;
      val = this.library ? (ref = ctx.get(this.library)) != null ? ref.get(this.name) : void 0 : ctx.get(this.name);
      if (val == null) {
        parts = this.name.split(".");
        val = ctx.get(part);
        if ((val != null) && parts.length > 1) {
          curr_obj = val;
          curr_val = null;
          ref1 = parts.slice(1);
          for (j = 0, len = ref1.length; j < len; j++) {
            part = ref1[j];
            _obj = (ref2 = curr_obj != null ? curr_obj[part] : void 0) != null ? ref2 : curr_obj != null ? typeof curr_obj.get === "function" ? curr_obj.get(part) : void 0 : void 0;
            curr_obj = _obj instanceof Function ? _obj.call(curr_obj) : _obj;
          }
          val = curr_obj;
        }
      }
      if (val instanceof Function) {
        return val.call(ctx.context_values);
      } else {
        return val;
      }
    };

    return IdentifierRef;

  })(Expression);

}).call(this);

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