Runtime error in Eclipse

[rudi]

---

Author Name: Volker Stolz (Volker Stolz)
Original Redmine Issue: 85, https://envisage.ifi.uio.no:8080/redmine/issues/85
Original Date: 2013-11-13
Original Assignee: Volker Stolz

---

For some variable declarations there's a runtime exception in Eclipse that is usually hidden, resulting in an UnresolvedTypeUse:

java.lang.RuntimeException: Trying to evaluate attribute in subtree not attached to main tree
    at abs.frontend.ast.CompilationUnit.lookupModule(CompilationUnit.java:1298)
    at abs.frontend.ast.CompilationUnit.Define_ModuleDecl_lookupModule(CompilationUnit.java:1354)
    at abs.frontend.ast.ASTNode.Define_ModuleDecl_lookupModule(ASTNode.java:1662)
    at abs.frontend.ast.ModuleDecl.lookupModule(ModuleDecl.java:1515)
    at abs.frontend.typechecker.TypeCheckerHelper.getImportedNames(TypeCheckerHelper.java:279)
    at abs.frontend.ast.ModuleDecl.getImportedNames_compute(ModuleDecl.java:1280)
    at abs.frontend.ast.ModuleDecl.getImportedNames(ModuleDecl.java:1267)
    at abs.frontend.typechecker.TypeCheckerHelper.getVisibleNames(TypeCheckerHelper.java:310)
    at abs.frontend.ast.ModuleDecl.getVisibleNames_compute(ModuleDecl.java:1088)
    at abs.frontend.ast.ModuleDecl.getVisibleNames(ModuleDecl.java:1075)
    at abs.frontend.ast.ModuleDecl.resolveName(ModuleDecl.java:385)
    at abs.frontend.ast.ModuleDecl.lookup_compute(ModuleDecl.java:1494)
    at abs.frontend.ast.ModuleDecl.lookup(ModuleDecl.java:1481)
    at abs.frontend.ast.ModuleDecl.Define_Decl_lookup(ModuleDecl.java:1604)
    at abs.frontend.ast.ASTNode.Define_Decl_lookup(ASTNode.java:1669)
    at abs.frontend.ast.ASTNode.Define_Decl_lookup(ASTNode.java:1669)
    at abs.frontend.ast.ASTNode.Define_Decl_lookup(ASTNode.java:1669)
    at abs.frontend.ast.ASTNode.Define_Decl_lookup(ASTNode.java:1669)
    at abs.frontend.ast.ASTNode.Define_Decl_lookup(ASTNode.java:1669)
    at abs.frontend.ast.ASTNode.Define_Decl_lookup(ASTNode.java:1669)
    at abs.frontend.ast.ASTNode.Define_Decl_lookup(ASTNode.java:1669)
    at abs.frontend.ast.TypedVarOrFieldDecl.lookup(TypedVarOrFieldDecl.java:327)
    at abs.frontend.ast.TypedVarOrFieldDecl.Define_Decl_lookup(TypedVarOrFieldDecl.java:342)
    at abs.frontend.ast.Exp.lookup(Exp.java:438)
    at abs.frontend.ast.TypeUse.getDecl_compute(TypeUse.java:393)
    at abs.frontend.ast.TypeUse.getDecl(TypeUse.java:381)
    at abs.frontend.ast.UnresolvedTypeUse.rewriteTo(UnresolvedTypeUse.java:365)
    at abs.frontend.ast.ASTNode.getChild(ASTNode.java:606)
    at abs.frontend.ast.ASTNode.collect_contributors_Stmt_getAACs(ASTNode.java:1098)
    at abs.frontend.ast.ASTNode.collect_contributors_Stmt_getAACs(ASTNode.java:1098)
    at abs.frontend.ast.Stmt.collect_contributors_Stmt_getAACs(Stmt.java:351)
    at abs.frontend.ast.Stmt.getAACs_compute(Stmt.java:618)
    at abs.frontend.ast.Stmt.getAACs(Stmt.java:587)
    at abs.frontend.ast.Stmt.rewriteTo(Stmt.java:529)
    at abs.frontend.ast.VarDeclStmt.rewriteTo(VarDeclStmt.java:578)
    at abs.frontend.ast.ASTNode.getChild(ASTNode.java:606)
    at abs.frontend.ast.List.rewriteTo(List.java:287)
    at abs.frontend.ast.ASTNode.getChild(ASTNode.java:606)
    at abs.frontend.ast.Block.getStmtList(Block.java:600)
    at abs.frontend.ast.Block.getNumStmt(Block.java:540)
    at abs.frontend.ast.Block.hasRewriteBlockAt(Block.java:86)
    at abs.frontend.ast.Block.rewriteTo(Block.java:812)
    at abs.frontend.ast.ASTNode.getChild(ASTNode.java:606)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:40)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:40)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:40)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:40)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:40)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:40)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:40)
    at abs.frontend.parser.SourcePosition.findPosition(SourcePosition.java:34)
    at org.absmodels.abs.plugin.util.UtilityFunctions.getASTNodeOfOffset(UtilityFunctions.java:373)
    at org.absmodels.abs.plugin.editor.ABSCodeScanner.evalAST(ABSCodeScanner.java:306)
    at org.absmodels.abs.plugin.editor.ABSCodeScanner.internalNextToken(ABSCodeScanner.java:259)
    at org.absmodels.abs.plugin.editor.ABSCodeScanner.nextToken(ABSCodeScanner.java:230)
    at org.eclipse.jface.text.rules.DefaultDamagerRepairer.createPresentation(DefaultDamagerRepairer.java:175)

[rudi]

---

Original Redmine Comment
Author Name: Volker Stolz (Volker Stolz)
Original Date: 2013-11-26T11:07:16Z

---

Regression: https://envisage.ifi.uio.no:8080/jenkins/job/ABS-Bucky-Tests/52/testReport/abs.AllTests$abs.frontend.AllFrontendTests$abs.frontend.parser/BackPositionTest/test6/

[rudi]

---

Original Redmine Comment
Author Name: Volker Stolz (Volker Stolz)
Original Date: 2013-11-26T16:57:38Z

---

Fix in place, let's see how it holds up.