Add a check to prevent crash in variable analysis

Quoc Truong · Quoc Truong · commit ca4a2b1864d3 · 2015-04-08T15:12:54.000-07:00
diff --git a/Engine/VariableAnalysis.cs b/Engine/VariableAnalysis.cs
@@ -197,6 +197,15 @@ public void AnalyzeImpl(Ast ast, VariableAnalysis outerAnalysis)
                     {
                         var assignTarget = new AssignmentTarget(details.RealName, details.Type);
                         assignTarget.Constant = details.Constant;
+                        if (!_variables.ContainsKey(assignTarget.Name))
+                        {
+                            _variables.Add(assignTarget.Name, new VariableAnalysisDetails
+                            {
+                                Name = assignTarget.Name,
+                                RealName = assignTarget.Name,
+                                Type = assignTarget.Type
+                            });
+                        }
                         Entry.AddFirstAst(assignTarget);
                     }
                 }

Original file line number	Diff line number	Diff line change
`@@ -197,6 +197,15 @@ public void AnalyzeImpl(Ast ast, VariableAnalysis outerAnalysis)`
`197`	`197`	`{`
`198`	`198`	`var assignTarget = new AssignmentTarget(details.RealName, details.Type);`
`199`	`199`	`assignTarget.Constant = details.Constant;`
	`200`	`+ if (!_variables.ContainsKey(assignTarget.Name))`
	`201`	`+ {`
	`202`	`+ _variables.Add(assignTarget.Name, new VariableAnalysisDetails`
	`203`	`+ {`
	`204`	`+ Name = assignTarget.Name,`
	`205`	`+ RealName = assignTarget.Name,`
	`206`	`+ Type = assignTarget.Type`
	`207`	`+ });`
	`208`	`+ }`
`200`	`209`	`Entry.AddFirstAst(assignTarget);`
`201`	`210`	`}`
`202`	`211`	`}`