visitExpr()

in lib/generator.js [1591:1715]

• 125 lines of code
• 53 McCabe index (conditional complexity)

  visitExpr(ast, level) {
    if (ast.type === 'boolean') {
      this.emit(ast.value);
    } else if (ast.type === 'property_access') {
      this.visitPropertyAccess(ast);
    } else if (ast.type === 'string') {
      this.emit(`'${_string(ast.value)}'`);
    } else if (ast.type === 'number') {
      this.emit(ast.value.value);
    } else if (ast.type === 'null') {
      this.emit('null');
    } else if (ast.type === 'object') {
      this.visitObject(ast, level);
    } else if (ast.type === 'variable') {
      if(ast.inferred &&  ast.inferred.type === 'basic' && ast.inferred.name === 'class') {
        this.emit(`${_avoidKeywords(_name(ast.id))}::class`);
      } else {
        this.emit(`$${_avoidKeywords(_name(ast.id))}`);
      }
    } else if (ast.type === 'virtualVariable') {
      this.emit(`$this->${_vid(ast.vid)}`);
    } else if (ast.type === 'decrement') {
      if (ast.position === 'front') {
        this.emit('--');
      }
      this.visitExpr(ast.expr, level);
      if (ast.position === 'backend') {
        this.emit('--');
      }
    } else if (ast.type === 'increment') {
      if (ast.position === 'front') {
        this.emit('++');
      }
      this.visitExpr(ast.expr, level);
      if (ast.position === 'backend') {
        this.emit('++');
      }
    } else if (ast.type === 'template_string') {
      this.emit('\'');
      for (var i = 0; i < ast.elements.length; i++) {
        var item = ast.elements[i];
        if (item.type === 'element') {
          this.emit(_string(item.value));
        } else if (item.type === 'expr') {
          this.emit('\' . ');
          if(item.expr.inferred && item.expr.inferred.name !== 'string') {
            this.emit('(string)');
          }
          if(_isBinaryOp(item.expr.type)) {
            this.emit('(');
          }
          this.visitExpr(item.expr, level);
          if(_isBinaryOp(item.expr.type)) {
            this.emit(')');
          }
          this.emit(' . \'');
        } else {
          throw new Error('unimpelemented');
        }
      }
      this.emit('\'');
    } else if (ast.type === 'call') {
      this.visitCall(ast, level);
    } else if (ast.type === 'construct') {
      this.visitConstruct(ast, level);
    } else if (ast.type === 'array') {
      this.visitArray(ast, level);
    } else if (ast.type === 'group') {
      this.emit('(');
      this.visitExpr(ast.expr, level);
      this.emit(')');
    } else if (_isBinaryOp(ast.type)) {
      this.visitExpr(ast.left, level);
      if (ast.type === 'or') {
        this.emit(' || ');
      } else if (ast.type === 'add') {
        if(ast.inferred &&  ast.inferred.type === 'basic' && ast.inferred.name === 'string') { 
          this.emit(' . ');
        } else {
          this.emit(' + ');
        }
      } else if (ast.type === 'subtract') {
        this.emit(' - ');
      } else if (ast.type === 'div') {
        this.emit(' / ');
      } else if (ast.type === 'multi') {
        this.emit(' * ');
      } else if (ast.type === 'and') {
        this.emit(' && ');
      } else if (ast.type === 'or') {
        this.emit(' || ');
      } else if (ast.type === 'lte') {
        this.emit(' <= ');
      } else if (ast.type === 'lt') {
        this.emit(' < ');
      } else if (ast.type === 'gte') {
        this.emit(' >= ');
      } else if (ast.type === 'gt') {
        this.emit(' > ');
      } else if (ast.type === 'neq') {
        this.emit(' != ');
      } else if (ast.type === 'eq') {
        this.emit(' == ');
      }
      this.visitExpr(ast.right, level);
    } else if (ast.type === 'group') {
      this.emit('(');
      this.visitExpr(ast.expr, level);
      this.emit('(');
    } else if (ast.type === 'not') {
      this.emit('!');
      this.visitExpr(ast.expr, level);
    } else if (ast.type === 'construct_model') {
      this.visitConstructModel(ast, level);
    } else if (ast.type === 'map_access') {
      this.visitMapAccess(ast);
    } else if (ast.type === 'array_access') {
      this.visitArrayAccess(ast);
    } else if (ast.type === 'super') {
      this.visitSuper(ast, level);
    } else {
      console.log(ast);
      throw new Error('unimpelemented');
    }
  }