Graphs¶

Graph modules build and expose the structural representations Topos measures: AST, CFG, CPG, MDG, PDG, and UAST. Use this section when adding language support, debugging parser output, or tracing how source code becomes measurable program structure.

`topos.graphs.base`	Representation Protocol Defines the contract that all program representations must satisfy.
`topos.graphs.ast.dispatch`
`topos.graphs.ast.object`	AST Representation Adapts the existing ProgramObject to the Representation protocol.
`topos.graphs.ast.types`
`topos.graphs.ast.providers.base`
`topos.graphs.ast.providers.native_provider`
`topos.graphs.ast.providers.tree_sitter_provider`
`topos.graphs.cfg.builder`	CFG Builder
`topos.graphs.cfg.models`	CFG Models
`topos.graphs.cfg.object`	ControlFlowGraph Representation
`topos.graphs.cpg.builder`	CPG Builder
`topos.graphs.cpg.models`	CPG Models — Code Property Graph node & edge types per Yamaguchi et al.
`topos.graphs.cpg.object`	CodePropertyGraph Representation.
`topos.graphs.mdg.object`	Module Dependency Graph (MDG) Representation Consumes the knowledge graph produced by GitNexus and lifts it into a Representation. This is the inter-module view of the program — it captures the import/call/inheritance structure across files, packages, and classes. Compare this with the academic intra-procedural Program Dependence Graph at topos.graphs.pdg.object, which records control- and data-dependence edges within a single procedure.
`topos.graphs.pdg.object`	Academic Program Dependence Graph (Ferrante/Ottenstein style).
`topos.graphs.uast.mapper_common`	UAST Mapper Common
`topos.graphs.uast.mapper_cpp`
`topos.graphs.uast.mapper_javascript`
`topos.graphs.uast.mapper_python`
`topos.graphs.uast.mapper_rust`
`topos.graphs.uast.mapper_typescript`
`topos.graphs.uast.models`	UAST Models