Generic dependency injection diagrams

Generic dependency injection

Start with how the application begins, then follow data between its folders. Open an operation to see its decisions, calls, failures and cleanup. Its explanation supplies the exact contract and linked dependencies.

This view includes 2 application source files. Package and interface boundaries show checked contracts; their runtime implementations are not expanded. The views describe the checked program, not desired requirements or a recorded execution.

Where execution begins

Providers

Console is provided by SystemConsole. The same instance is shared. Repository<int> is provided by NumberRepository. The same instance is shared.

app is provided by Program. The same instance is shared. It requires bindings for Repository<int>.

Startup

It sets program to the instance provided for app. It calls program.start using injected Console for console. source

Data flow

100%

Mermaid source

flowchart TD
    n0["Startup"]
    n1["types"]
    n0 -->|"Program.start"| n1

Package boundaries

types package calls

100%

Mermaid source

flowchart LR
    n0["August libraries"]
    n1["types"]
    n1 -->|"Console.write(value)"| n0

Follow the data

Each row opens the complete operations and call sites behind one pair of logical units. A grouped arrow records calls between those units; connected arrows need not belong to the same execution path.

From	To	Operations	Read
Startup	types	1	Inputs, results and call sites
types	August libraries	1	Inputs, results and call sites

Data crossing these boundaries (2 contracts)

Startup → types

1 operation, 1 site

Program.start

No caller-supplied inputs. Result: void.

Caller or entry	Evidence
Startup	Call site · Caller explanation

types → August libraries

1 operation, 1 site

Console.write · interface dispatch

Inputs: value: int. Result: void.

Caller or entry	Evidence
Program.start	Call site · Caller explanation

Open a module

Module	Read
main.aug	Flow and sequences · Explanation
types.aug	Flow and sequences · Explanation

These are static call boundaries, not a request trace. Interface implementations and foreign internals stop at their checked contracts. Dotted arrows defer a callback or browser action. Imports alone do not imply a call.