Support aliased input class keys (#1045)

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> [!IMPORTANT]
> This PR adds support for aliased input class keys and enum values,
refactors the Jinja crate, and updates tests to verify aliasing
behavior.
> 
>   - **Behavior**:
>     - Support for aliased input class keys and enum values.
> - Updates to `PromptRenderer` in `prompt_renderer/mod.rs` to handle
aliasing.
>   - **Crate Refactor**:
> - Split Jinja into `internal-baml-jinja-types` and
`internal-baml-jinja`.
>     - Update `Cargo.toml` files for new crate structure.
>   - **Code Changes**:
> - Modify imports in `enums.rs`, `functions.rs`,
`baml_value_to_jinja_value.rs` to use `internal_baml_jinja_types`.
> - Implement `IntoMiniJinjaValue` trait in
`baml_value_to_jinja_value.rs`.
>   - **Testing**:
> - Add integration tests in `integ-tests.test.ts` for aliasing
behavior.
> - Test cases for aliased input classes and enums in
`aliased-inputs.baml`.
> 
> <sup>This description was created by </sup>[<img alt="Ellipsis"
src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=BoundaryML%2Fbaml&utm_source=github&utm_medium=referral)<sup>
for 2c8240a. It will automatically
update as commits are pushed.</sup>


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engine/baml-lib/baml-core/Cargo.toml

@@ -16,7 +16,7 @@ enumflags2 = "0.7"
 log = "0.4.20"
 indexmap.workspace = true
 internal-baml-diagnostics = { path = "../diagnostics" }
-internal-baml-jinja.workspace = true
+internal-baml-jinja-types = { path = "../jinja" }
 internal-baml-parser-database = { path = "../parser-database" }
 internal-baml-prompt-parser = { path = "../prompt-parser" }
 internal-baml-schema-ast = { path = "../schema-ast" }

engine/baml-lib/baml-core/src/validate/validation_pipeline/validations/classes.rs

@@ -5,7 +5,7 @@ use crate::validate::validation_pipeline::context::Context;
 use internal_baml_diagnostics::DatamodelError;
 
 pub(super) fn validate(ctx: &mut Context<'_>) {
-    let mut defined_types = internal_baml_jinja::PredefinedTypes::default();
+    let mut defined_types = internal_baml_jinja_types::PredefinedTypes::default();
 
     for cls in ctx.db.walk_classes() {
         for c in cls.static_fields() {

engine/baml-lib/baml-core/src/validate/validation_pipeline/validations/enums.rs

@@ -4,7 +4,7 @@ use internal_baml_diagnostics::DatamodelError;
 use internal_baml_schema_ast::ast::{WithName, WithSpan};
 
 pub(super) fn validate(ctx: &mut Context<'_>) {
-    let mut defined_types = internal_baml_jinja::PredefinedTypes::default();
+    let mut defined_types = internal_baml_jinja_types::PredefinedTypes::default();
     for enm in ctx.db.walk_enums() {
         for args in enm.walk_input_args() {
             let arg = args.ast_arg();

engine/baml-lib/baml-core/src/validate/validation_pipeline/validations/functions.rs

@@ -13,7 +13,7 @@ pub(super) fn validate(ctx: &mut Context<'_>) {
         .map(|c| c.name().to_string())
         .collect::<Vec<_>>();
 
-    let mut defined_types = internal_baml_jinja::PredefinedTypes::default();
+    let mut defined_types = internal_baml_jinja_types::PredefinedTypes::default();
     ctx.db.walk_classes().for_each(|t| {
         t.add_to_types(&mut defined_types);
     });
@@ -40,7 +40,7 @@ pub(super) fn validate(ctx: &mut Context<'_>) {
                 defined_types.add_variable(name.name(), ctx.db.to_jinja_type(&t.field_type))
             });
         }
-        match internal_baml_jinja::validate_template(
+        match internal_baml_jinja_types::validate_template(
             template.name(),
             prompt.raw_value(),
             &mut defined_types,
@@ -128,7 +128,7 @@ pub(super) fn validate(ctx: &mut Context<'_>) {
 
             defined_types.add_variable(&name, field_type);
         });
-        match internal_baml_jinja::validate_template(
+        match internal_baml_jinja_types::validate_template(
             func.name(),
             prompt.raw_value(),
             &mut defined_types,

engine/baml-lib/baml-types/src/lib.rs

@@ -1,7 +1,5 @@
 mod map;
 mod media;
-#[cfg(feature = "mini-jinja")]
-mod minijinja;
 
 mod baml_value;
 mod field_type;

engine/baml-lib/jinja-runtime/Cargo.toml

@@ -0,0 +1,46 @@
+[package]
+name = "internal-baml-jinja"
+edition = "2021"
+version.workspace = true
+authors.workspace = true
+description.workspace = true
+license-file.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+baml-types = { path = "../baml-types", features = ["mini-jinja"] }
+internal-baml-jinja-types = { path = "../jinja" }
+internal-baml-core = { path = "../baml-core" }
+internal-baml-diagnostics = { path = "../diagnostics" }
+# TODO: disable imports, etc
+minijinja = { version = "1.0.16", default-features = false, features = [
+  "macros",
+  "builtins",
+  "debug",
+  "preserve_order",
+  "adjacent_loop_items",
+  "unicode",
+  "json",
+  "unstable_machinery",
+  "unstable_machinery_serde",
+  "custom_syntax",
+  "internal_debug",
+  "deserialization",
+  # We don't want to use these features:
+  # multi_template
+  # loader
+  #
+] }
+askama.workspace = true
+anyhow.workspace = true
+indexmap.workspace = true
+log.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+strum.workspace = true
+strsim = "0.11.1"
+colored = "2.1.0"
+
+[dev-dependencies]
+env_logger = "0.11.3"