semantic: multiple transformation failures

[bzz]

Discovered as part of the bblfsh/bblfshd#268 (comment)

This is an ☂️ issue for driver failures due errors while semantic normalization of some files.

• 5 string literal escape sequence handling cases semantic: string literal escape sequence handing #35
• check: key "Prop_DeclSpecifier": unused field(s) on node CPPASTNamedTypeSpecifier: Prop_AttributeSpecifiers"
• check: key "Prop_Declarator": key "Prop_Parameters": elem 0 (nodes.Object): unused field(s) on node CPPASTArrayDeclarator: Prop_NesteDeclarator"
• heck: key "Prop_Declarator": key "Prop_Parameters": elem 1 (nodes.Object): unused field(s) on node CPPASTArrayDeclarator: Prop_NestedDeclarator"
• check: key "Prop_Declarator": unused field(s) on node CPPASTFunctionDeclarator: Prop_AttributeSpecifiers"
• check: key "Prop_Declarator": unused field(s) on node CPPASTFunctionDeclarator: Prop_Attributes"
• check: key "Prop_Declarator": unused field(s) on node CPPASTFunctionDeclarator: TrailingComments"
• check: unused field(s) on node CPPASTLiteralExpression: ExpandedFromMacro"
• check: unused field(s) on node CPPASTLiteralExpression: LeadingComments"
• check: unused field(s) on node CPPASTLiteralExpression: TrailingComments"
• check: unused field(s) on node CPPASTName: LeadingComments"
• check: unused field(s) on node CPPASTName: TrailingComments"
• check: unused field(s) on node CPPASTQualifiedName: TrailingComments"
• construct: key "@role": unhandled value: arrow -> in map[!=:
• onstruct: key "@role": unhandled value: arrow -> in map[&&:
• construct: key "@role": unhandled value: arrow -> in map[-:
• construct: key "@role": unhandled value: arrow -> in map[>:
• construct: key "@role": unhandled value: arrow -> in map[^=:
• construct: key "@role": unhandled value: arrow -> in map[max:
• construct: key "@role": unhandled value: arrow -> in map[unknown_operator:
• construct: key "@role": unhandled value: arrow -> in map[|:

Normalization mapping for semantic mode needs to be updated.

The list was produced with

grep "language=cpp$" bblfshd.log | grep "error" | grep -v "native driver is not running" | grep -oP "FailedPrecondition desc = (.*) elapsed" | sort | uniq

186 files for the fixtures to reproduce the failures can be obtained with

grep "language=cpp$" bblfshd.log | grep "error" | grep -v "native driver is not running" | grep -oP "FailedPrecondition desc = \K(.*)" | sort | less

[bzz]

String literal cases moved out to #35

[carlosms]

I found an issue that seems to be related to this one. Adding here in case it helps.

File hello.cpp

#include <iostream> // include API

using namespace std;

int main() // the main code portion of a C++ program
{
   cout << "Hello World" << endl;  //print Hello World on the screen 
   return 0; // conventional
}

Bblfsh image bblfsh/bblfshd:v2.12.1-drivers. Logs:

time="2019-04-19T10:25:53Z" level=error msg="request processed content 214 bytes error: rpc error: code = FailedPrecondition desc = check: key "Prop_Declarator": unused field(s) on node CPPASTFunctionDeclarator: TrailingComments" elapsed=6.92455ms filename="/home/cmartin/go/src/github.com/src-d/engine/cmdtests/testdata/hello.cpp" language=cpp