Module codegen 

Rust code generation from project schemas - Always uses adk-graph

This module provides code generation for ADK Studio projects, converting visual workflow definitions into compilable Rust code using adk-graph.

ADK 0.5.0 Features

• Action nodes use adk-graph’s ActionNodeExecutor with feature-gated deps
• WorkflowSchema::build_graph() for action-node-only workflows
• adk-action shared types for cross-crate compatibility
• Provider auto-detection with provider_from_env() support
• Structured error envelope (AdkError) with retry hints

Features

• Workflow validation before code generation (Requirements 12.4, 12.5)
• Explanatory comments in generated code (Requirement 12.2)
• Environment variable warnings (Requirement 12.10)
• Support for all agent types: LLM, Sequential, Loop, Parallel, Router
• Action node code generation (Requirements 13.1, 13.2, 13.3)

Re-exports

pub use action_node_codegen as action_nodes;

Modules

action_node_codegen

Action Node Code Generation

action_node_types

Action Node Type Definitions

Structs

EnvVarRequirement

Environment variable requirement

EnvVarWarning

Warning about a missing environment variable

GeneratedFile

GeneratedProject

ValidationError

Validation error with specific details

ValidationResult

Result of workflow validation

Enums

ValidationErrorCode

Error codes for validation errors

Functions

check_env_vars

Check for missing required environment variables

generate_rust_project

Generate a Rust project from a project schema

generate_rust_project_with_validation

Generate a Rust project with validation result

get_required_env_vars

Get a list of required environment variables for a project

validate_project

Validate a project schema before code generation