Contents

use :node;

var Node = module.require('../Node').Node;

fn ForInStatement(item, index, array, body)
  extends Node {
  
  this.type = 'ForInStatement';
  
  this.item = item;
  this.item.parent = this;
  
  this.index = index;
  if this.index? {
    this.index.parent = this;
  }
  
  this.array = array;
  this.array.parent = this;
  
  this.body = body;
  this.body.parent = this;
}

ForInStatement.prototype.codegen = () -> {
  if !super.codegen() {
    return;
  }
  
  this.item = this.item.codegen(false);
  
  if this.index? {
    var context = this.getContext();
    this.index = this.index.codegen(false);
    
    context.node.body.splice(context.position, 0, {
      "type": "VariableDeclaration",
      "declarations": [{
        "type": "VariableDeclarator",
        "id": this.index,
        "init": {
          "type": "Literal",
          "value": 0
        }
      }],
      "kind": "let"
    });
  }

  if !this.array.codeGenerated {
    this.array = this.array.codegen();
  }
 
  this.body = this.body.blockWrap();
  this.body.defineIdentifier(this.item);
  
  if this.index? {
    this.body.defineIdentifier(this.index);
  }
  
  this.body = this.body.codegen();
  
  if this.index? {
    this.body.body.push({
      "type": "ExpressionStatement",
      "codeGenerated": true,
      "expression": {
        "type": "UpdateExpression",
        "operator": "++",
        "argument": this.index,
        "prefix": false
      }
    });
  }
  
  this.type = "ForOfStatement";
  this.right = this.array;
  this.left = {
    "type": "VariableDeclaration",
    "declarations": [{
      "type": "VariableDeclarator",
      "id": this.item,
      "init": null
    }],
    "kind": "let"
  };
  this.each = false;
    
  return this;
};

exports.ForInStatement = ForInStatement;

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
spider-src-0.1.7	lib/spider-src/support/spider/src/ast/statements/ForInStatement.spider
spider-src-0.1.6	lib/spider-src/support/spider/src/ast/statements/ForInStatement.spider
spider-src-0.1.5	lib/spider-src/support/spider/src/ast/statements/ForInStatement.spider