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node_modules/stackframe/stackframe.js 3.78 KB
aaac7fed   liuqimichale   add
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  (function(root, factory) {
      'use strict';
      // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js, Rhino, and browsers.
  
      /* istanbul ignore next */
      if (typeof define === 'function' && define.amd) {
          define('stackframe', [], factory);
      } else if (typeof exports === 'object') {
          module.exports = factory();
      } else {
          root.StackFrame = factory();
      }
  }(this, function() {
      'use strict';
      function _isNumber(n) {
          return !isNaN(parseFloat(n)) && isFinite(n);
      }
  
      function _capitalize(str) {
          return str.charAt(0).toUpperCase() + str.substring(1);
      }
  
      function _getter(p) {
          return function() {
              return this[p];
          };
      }
  
      var booleanProps = ['isConstructor', 'isEval', 'isNative', 'isToplevel'];
      var numericProps = ['columnNumber', 'lineNumber'];
      var stringProps = ['fileName', 'functionName', 'source'];
      var arrayProps = ['args'];
  
      var props = booleanProps.concat(numericProps, stringProps, arrayProps);
  
      function StackFrame(obj) {
          if (obj instanceof Object) {
              for (var i = 0; i < props.length; i++) {
                  if (obj.hasOwnProperty(props[i]) && obj[props[i]] !== undefined) {
                      this['set' + _capitalize(props[i])](obj[props[i]]);
                  }
              }
          }
      }
  
      StackFrame.prototype = {
          getArgs: function() {
              return this.args;
          },
          setArgs: function(v) {
              if (Object.prototype.toString.call(v) !== '[object Array]') {
                  throw new TypeError('Args must be an Array');
              }
              this.args = v;
          },
  
          getEvalOrigin: function() {
              return this.evalOrigin;
          },
          setEvalOrigin: function(v) {
              if (v instanceof StackFrame) {
                  this.evalOrigin = v;
              } else if (v instanceof Object) {
                  this.evalOrigin = new StackFrame(v);
              } else {
                  throw new TypeError('Eval Origin must be an Object or StackFrame');
              }
          },
  
          toString: function() {
              var functionName = this.getFunctionName() || '{anonymous}';
              var args = '(' + (this.getArgs() || []).join(',') + ')';
              var fileName = this.getFileName() ? ('@' + this.getFileName()) : '';
              var lineNumber = _isNumber(this.getLineNumber()) ? (':' + this.getLineNumber()) : '';
              var columnNumber = _isNumber(this.getColumnNumber()) ? (':' + this.getColumnNumber()) : '';
              return functionName + args + fileName + lineNumber + columnNumber;
          }
      };
  
      for (var i = 0; i < booleanProps.length; i++) {
          StackFrame.prototype['get' + _capitalize(booleanProps[i])] = _getter(booleanProps[i]);
          StackFrame.prototype['set' + _capitalize(booleanProps[i])] = (function(p) {
              return function(v) {
                  this[p] = Boolean(v);
              };
          })(booleanProps[i]);
      }
  
      for (var j = 0; j < numericProps.length; j++) {
          StackFrame.prototype['get' + _capitalize(numericProps[j])] = _getter(numericProps[j]);
          StackFrame.prototype['set' + _capitalize(numericProps[j])] = (function(p) {
              return function(v) {
                  if (!_isNumber(v)) {
                      throw new TypeError(p + ' must be a Number');
                  }
                  this[p] = Number(v);
              };
          })(numericProps[j]);
      }
  
      for (var k = 0; k < stringProps.length; k++) {
          StackFrame.prototype['get' + _capitalize(stringProps[k])] = _getter(stringProps[k]);
          StackFrame.prototype['set' + _capitalize(stringProps[k])] = (function(p) {
              return function(v) {
                  this[p] = String(v);
              };
          })(stringProps[k]);
      }
  
      return StackFrame;
  }));