aws-sdk-for-zig/src/servicemodel.zig

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const std = @import("std");
const service_list = @import("models/service_manifest.zig");
const expectEqualStrings = std.testing.expectEqualStrings;
pub fn Services(comptime service_imports: anytype) type {
if (service_imports.len == 0) return services;
// From here, the fields of our structure can be generated at comptime...
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var fields: [serviceCount(service_imports)]std.builtin.Type.StructField = undefined;
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for (&fields, 0..) |*item, i| {
const import_field = @field(service_list, @tagName(service_imports[i]));
item.* = .{
.name = @tagName(service_imports[i]),
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.type = @TypeOf(import_field),
.default_value = &import_field,
.is_comptime = false,
.alignment = 0,
};
}
// finally, generate the type
return @Type(.{
.Struct = .{
.layout = .Auto,
.fields = &fields,
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.decls = &[_]std.builtin.Type.Declaration{},
.is_tuple = false,
},
});
}
fn serviceCount(desired_services: anytype) usize {
if (desired_services.len == 0) return @TypeOf(service_list).Struct.fields.len;
return desired_services.len;
}
/// Using this constant may blow up build times. Recommed using Services()
/// function directly, e.g. const services = Services(.{.sts, .ec2, .s3, .ddb}){};
pub const services = service_list;
test "services includes sts" {
try expectEqualStrings("2011-06-15", services.sts.version);
}
test "sts includes get_caller_identity" {
try expectEqualStrings("GetCallerIdentity", services.sts.get_caller_identity.action_name);
}
test "can get service and action name from request" {
// get request object. This call doesn't have parameters
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const metadata = services.sts.get_caller_identity.Request.metaInfo();
try expectEqualStrings("2011-06-15", metadata.service_metadata.version);
}
test "can filter services" {
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const filtered_services = Services(.{ .sts, .wafv2 }){};
try expectEqualStrings("2011-06-15", filtered_services.sts.version);
}