Methods and systems for generating knowledge graphs from program source code

A system, comprising:

• a processor;
• and
• a memory having instructions stored thereon which, when executed by the processor, performs an operation for generating a knowledge graph from program source code, the operation comprising:
• receiving a source code definition of a workflow implemented in an application;
• converting the source code definition of the workflow into an intermediate representation of the workflow, the intermediate representation comprising a condensed version of the source code definition;
• generating an abstract syntax tree representation of the workflow based on the intermediate representation of the workflow;
• generating a structured file by:
• traversing the abstract syntax tree representation of the workflow recursively until reaching a bottom of the abstract syntax tree representation;
• identifying, based on the reaching of the bottom of the abstract syntax tree representation, operations that are to be invoked in the workflow using a knowledge graph definition generator;
• and
• writing the structured file from the bottom of the abstract syntax tree representation to a root node of the abstract syntax tree representation based on the identifying of the operations that are to be invoked in the workflow, wherein the structured file comprises a definition of the workflow in a knowledge graph-specific language readable by a knowledge graph execution engine, wherein the knowledge graph-specific language comprises a declarative construct that is decoupled from programmatic and platform-related constraints associated with a programming language of the source code definition of the workflow;
• and
• deploying the structured file to the knowledge graph execution engine.

A method for generating a knowledge graph definition from program source code, comprising:

• receiving a source code definition of a workflow implemented in an application;
• converting the source code definition of the workflow into an intermediate representation of the workflow, the intermediate representation comprising a condensed version of the source code definition;
• generating an abstract syntax tree representation of the workflow based on the intermediate representation of the workflow by:
• tokenizing the intermediate representation of the workflow based on a lexical analysis of the intermediate representation;
• and
• building the abstract syntax tree by syntactically analyzing the tokenized intermediate representation of the workflow based on a context-free grammar associated with knowledge graph-specific language to generate a tree data structure based on an order in which operations are defined in the intermediate representation of the workflow such that an output of a function is represented as a root node of the abstract syntax tree, wherein:
• nodes in the tree data structure represent an operation of a plurality of operations defined in the context-free grammar associated with the knowledge graph-specific language,
• the plurality of operations comprise mathematical primitive operations/logical operations/conditional operations defined in a programming language and function calls in the application, and
• the knowledge graph-specific language comprises a declarative construct that is decoupled from programmatic and platform-related constraints associated with a programming language of the source code definition of the workflow;
• generating a structured file by:
• traversing the abstract syntax tree representation of the workflow recursively until reaching a bottom of the abstract syntax tree representation;
• identifying, based on the reaching of the bottom of the abstract syntax tree representation, operations that are to be invoked in the workflow using a knowledge graph definition generator;
• and
• writing the structured file from the bottom of the abstract syntax tree representation to a root node of the abstract syntax tree representation based on the identifying of the operations that are to be invoked in the workflow, wherein the structured file comprises a definition of the workflow in the knowledge graph-specific language readable by a knowledge graph execution engine;
• and
• deploying the structured file to the knowledge graph execution engine.