Fix inline enum query/path params to use typed enums instead of String

[johnbatty]

Summary

Fixes #78.

The recursionLevel query parameter on git::items::get and git::items::list was the reported case, but the same problem affected 105 parameters across all API areas — any parameter with type: string, an enum field, and an x-ms-enum extension was being generated as impl Into<String> instead of a typed enum.

Root cause

WebParameter::type_name() in the codegen called get_type_name_for_schema(), which returned TypeName::String for all string-typed parameters and discarded the enum / x-ms-enum fields entirely.

Fix

Two changes to the code generator — no spec patches required:

1. autorust/codegen/src/spec.rs

   • WebParameter::type_name() now checks for non-empty enum_ + x_ms_enum.name and returns TypeName::Reference(name) instead of TypeName::String.
   • New Spec::inline_parameter_enum_schemas() collects synthetic Schema entries for all inline enum parameters so the models codegen can generate a named enum type for each.

2. autorust/codegen/src/codegen_models.rs

   • all_schemas() calls inline_parameter_enum_schemas() to include those synthetic schemas alongside definition-based schemas.
   • All generated enums now implement std::fmt::Display, so enum values serialise correctly into URL query/path parameters via .to_string().

Effect

All 105 affected parameters across build, git, release, wit, tfvc, wiki, distributedTask, etc. now use typed enums. Examples:

Module	Parameter	Before	After
git::items	recursionLevel	impl Into<String>	impl Into<models::VersionControlRecursionType>
build::builds	statusFilter	impl Into<String>	impl Into<models::BuildStatus>
build::builds	resultFilter	impl Into<String>	impl Into<models::BuildResult>
release	statusFilter	impl Into<String>	impl Into<models::ReleaseStatus>
git::pull_requests	searchCriteria.status	impl Into<String>	impl Into<models::PullRequestStatus>
tfvc	recursionLevel	impl Into<String>	impl Into<models::VersionControlRecursionType>

Breaking change

Callers passing string literals for any of the 105 affected parameters will need to switch to the enum type. Example:

// Before
git_client.items_client().list(org, repo, project)
    .recursion_level("Full")

// After
use azure_devops_rust_api::git::models::VersionControlRecursionType;
git_client.items_client().list(org, repo, project)
    .recursion_level(VersionControlRecursionType::Full)

Test plan

• ./build.sh succeeds
• cargo clippy --all-features -- --deny warnings passes
• cargo clippy --all-features --examples -- --deny warnings passes

🤖 Generated with Claude Code