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Generate Gleam code from OpenAPI 3.x specifications
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src/oaspec/codegen/operation_ir.gleam
import gleam/option.{type Option, None, Some}
import oaspec/codegen/context.{type Context}
import oaspec/openapi/resolver
import oaspec/openapi/schema
import oaspec/openapi/spec
/// Compute the effective explode value for a parameter.
/// OpenAPI 3.x default: true for form/deepObject style, false otherwise.
/// When style is None (on a query parameter), the default is form → true.
pub fn effective_explode(param: spec.Parameter(spec.Resolved)) -> Bool {
case param.explode {
Some(v) -> v
None ->
case param.style {
Some(spec.FormStyle) | Some(spec.DeepObjectStyle) | None -> True
_ -> False
}
}
}
/// Return the delimiter character for a parameter style.
/// pipeDelimited → "|", spaceDelimited → " ", all others → ","
pub fn delimiter_for_style(style: Option(spec.ParameterStyle)) -> String {
case style {
Some(spec.PipeDelimitedStyle) -> "|"
Some(spec.SpaceDelimitedStyle) -> " "
_ -> ","
}
}
/// Check if a parameter uses deepObject serialization.
/// True when: in=query, style=deepObject, and schema is an ObjectSchema.
pub fn is_deep_object_param(
param: spec.Parameter(spec.Resolved),
ctx: Context,
) -> Bool {
case param.in_, param.style, spec.parameter_schema(param) {
spec.InQuery,
Some(spec.DeepObjectStyle),
Some(schema.Reference(..) as schema_ref)
->
case resolver.resolve_schema_ref(schema_ref, context.spec(ctx)) {
Ok(schema.ObjectSchema(..)) -> True
_ -> False
}
spec.InQuery,
Some(spec.DeepObjectStyle),
Some(schema.Inline(schema.ObjectSchema(..)))
-> True
_, _, _ -> False
}
}