Better optional values handling (#430)

Closes #414

examples/simple/src/lib.rs

@@ -19,6 +19,9 @@ fn test_main() -> Result<(), Error> {
     // Tests number mapping
     let number = random_string.min_upper.map(|i| i * 2);
 
+    // Optional values are deserialized as None
+    let keepers = random_string.keepers.map(|map| format!("Keepers: {map:?}"));
+
     let val1 = Output::new(&1);
     let val2 = Output::new(&"abc".to_string());
 
@@ -29,10 +32,19 @@ fn test_main() -> Result<(), Error> {
     let combined_string = combined.map(|values| format!("Values: {values:?}"));
     let combined_2_string = combined_2.map(|values| format!("Values: {values:?}"));
 
+    let random_string_2 = random_string::create(
+        "test_2",
+        RandomStringArgs::builder()
+            .length(keepers.map(|s| s.len() as i32))
+            .build_struct(),
+    );
+
     add_export("result", &random_string.result);
     add_export("transformed_result", &t);
     add_export("number", &number);
     add_export("combined_string", &combined_string);
     add_export("combined_2_string", &combined_2_string);
+    add_export("keepers", &keepers);
+    add_export("result_2", &random_string_2.result);
     Ok(())
 }

examples/simple/tests/test.rs

@@ -73,11 +73,25 @@ fn test_integration() -> Result<(), anyhow::Error> {
         .as_str()
         .ok_or(anyhow!("[combined_2_string] is not a string"))?;
 
+    let keepers = stack
+        .pointer("/keepers")
+        .ok_or(anyhow!("Cannot find [keepers] in stack export"))?
+        .as_str()
+        .ok_or(anyhow!("[keepers] is not a string"))?;
+
+    let result_2 = stack
+        .pointer("/result_2")
+        .ok_or(anyhow!("Cannot find [result_2] in stack export"))?
+        .as_str()
+        .ok_or(anyhow!("[result_2] is not a string"))?;
+
     assert_eq!(result.len(), 36);
     assert_eq!(transformed_result, format!("Result: {}", result));
     assert_eq!(number, 0);
     assert_eq!(combined_string, "Values: (1, \"abc\")");
     assert_eq!(combined_2_string, "Values: (1, \"abc\")");
+    assert_eq!(keepers, "Keepers: None");
+    assert_eq!(result_2.len(), 13);
 
     Ok(())
 }

providers/pulumi_wasm_provider_cloudflare/src/lib.rs

@@ -2,6 +2,7 @@ mod resource;
 mod function;
 
 #[allow(unused_braces)]
+#[allow(unused_imports)]
 mod bindings;
 bindings::export!(Component with_types_in bindings);
 

providers/pulumi_wasm_provider_docker/src/lib.rs

@@ -2,6 +2,7 @@ mod resource;
 mod function;
 
 #[allow(unused_braces)]
+#[allow(unused_imports)]
 mod bindings;
 bindings::export!(Component with_types_in bindings);
 

providers/pulumi_wasm_provider_random/src/lib.rs

@@ -1,6 +1,7 @@
 mod resource;
 
 #[allow(unused_braces)]
+#[allow(unused_imports)]
 mod bindings;
 bindings::export!(Component with_types_in bindings);
 

pulumi_wasm/src/bindings.rs

@@ -1271,6 +1271,37 @@ pub mod exports {
                 );
             }
         }
+        #[allow(dead_code)]
+        pub mod pulumi_wasm_external {
+            #[allow(dead_code, clippy::all)]
+            pub mod pulumi_settings {
+                #[used]
+                #[doc(hidden)]
+                static __FORCE_SECTION_REF: fn() = super::super::super::super::__link_custom_section_describing_imports;
+                use super::super::super::super::_rt;
+                #[doc(hidden)]
+                #[allow(non_snake_case)]
+                pub unsafe fn _export_set_in_preview_cabi<T: Guest>(arg0: i32) {
+                    #[cfg(target_arch = "wasm32")] _rt::run_ctors_once();
+                    T::set_in_preview(_rt::bool_lift(arg0 as u8));
+                }
+                pub trait Guest {
+                    fn set_in_preview(in_preview: bool);
+                }
+                #[doc(hidden)]
+                macro_rules! __export_component_pulumi_wasm_external_pulumi_settings_0_0_0_stable_dev_cabi {
+                    ($ty:ident with_types_in $($path_to_types:tt)*) => {
+                        const _ : () = { #[export_name =
+                        "component:pulumi-wasm-external/pulumi-settings@0.0.0-STABLE-DEV#set-in-preview"]
+                        unsafe extern "C" fn export_set_in_preview(arg0 : i32,) {
+                        $($path_to_types)*:: _export_set_in_preview_cabi::<$ty > (arg0) }
+                        };
+                    };
+                }
+                #[doc(hidden)]
+                pub(crate) use __export_component_pulumi_wasm_external_pulumi_settings_0_0_0_stable_dev_cabi;
+            }
+        }
     }
 }
 mod _rt {
@@ -1474,17 +1505,20 @@ macro_rules! __export_pulumi_wasm_impl {
         exports::component::pulumi_wasm::register_interface); $($path_to_types_root)*::
         exports::component::pulumi_wasm::stack_interface::__export_component_pulumi_wasm_stack_interface_0_0_0_dev_cabi!($ty
         with_types_in $($path_to_types_root)*::
-        exports::component::pulumi_wasm::stack_interface);
+        exports::component::pulumi_wasm::stack_interface); $($path_to_types_root)*::
+        exports::component::pulumi_wasm_external::pulumi_settings::__export_component_pulumi_wasm_external_pulumi_settings_0_0_0_stable_dev_cabi!($ty
+        with_types_in $($path_to_types_root)*::
+        exports::component::pulumi_wasm_external::pulumi_settings);
     };
 }
 #[doc(inline)]
 pub(crate) use __export_pulumi_wasm_impl as export;
 #[cfg(target_arch = "wasm32")]
 #[link_section = "component-type:wit-bindgen:0.30.0:pulumi-wasm:encoded world"]
 #[doc(hidden)]
-pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 1775] = *b"\
-\0asm\x0d\0\x01\0\0\x19\x16wit-component-encoding\x04\0\x07\xed\x0c\x01A\x02\x01\
-A\x0b\x01B\x0a\x01m\x05\x05TRACE\x05DEBUG\x04INFO\x04WARN\x05ERROR\x04\0\x05leve\
+pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 1882] = *b"\
+\0asm\x0d\0\x01\0\0\x19\x16wit-component-encoding\x04\0\x07\xd8\x0d\x01A\x02\x01\
+A\x0d\x01B\x0a\x01m\x05\x05TRACE\x05DEBUG\x04INFO\x04WARN\x05ERROR\x04\0\x05leve\
 l\x03\0\0\x01ks\x01ky\x01o\x02ss\x01p\x04\x01r\x07\x05level\x01\x06targets\x04ar\
 gss\x0bmodule-path\x02\x04file\x02\x04line\x03\x0akey-values\x05\x04\0\x07conten\
 t\x03\0\x06\x01@\x01\x07content\x07\x01\0\x04\0\x03log\x01\x08\x03\x013component\
@@ -1517,9 +1551,11 @@ d\x02\x0bfunction-ids\x05values\x04\0\x1bfunction-invocation-request\x03\0\x03\x
 h\x01\x01r\x02\x02id\x05\x05values\x04\0\x1afunction-invocation-result\x03\0\x06\
 \x01@\x02\x04names\x05value\x05\x01\0\x04\0\x0aadd-export\x01\x08\x01p\x07\x01p\x04\
 \x01@\x01\x09functions\x09\0\x0a\x04\0\x06finish\x01\x0b\x04\x01/component:pulum\
-i-wasm/stack-interface@0.0.0-DEV\x05\x05\x04\x01+component:pulumi-wasm/pulumi-wa\
-sm@0.0.0-DEV\x04\0\x0b\x11\x01\0\x0bpulumi-wasm\x03\0\0\0G\x09producers\x01\x0cp\
-rocessed-by\x02\x0dwit-component\x070.215.0\x10wit-bindgen-rust\x060.30.0";
+i-wasm/stack-interface@0.0.0-DEV\x05\x05\x01B\x02\x01@\x01\x0ain-preview\x7f\x01\
+\0\x04\0\x0eset-in-preview\x01\0\x04\x01?component:pulumi-wasm-external/pulumi-s\
+ettings@0.0.0-STABLE-DEV\x05\x06\x04\x01+component:pulumi-wasm/pulumi-wasm@0.0.0\
+-DEV\x04\0\x0b\x11\x01\0\x0bpulumi-wasm\x03\0\0\0G\x09producers\x01\x0cprocessed\
+-by\x02\x0dwit-component\x070.215.0\x10wit-bindgen-rust\x060.30.0";
 #[inline(never)]
 #[doc(hidden)]
 pub fn __link_custom_section_describing_imports() {

pulumi_wasm/src/lib.rs

@@ -16,6 +16,8 @@ use crate::bindings::exports::component::pulumi_wasm::stack_interface::{
 use crate::bindings::exports::component::pulumi_wasm::{
     output_interface, register_interface, stack_interface,
 };
+use crate::bindings::exports::component::pulumi_wasm_external::pulumi_settings;
+use std::sync::atomic::{AtomicBool, Ordering};
 
 bindings::export!(Component with_types_in bindings);
 
@@ -74,11 +76,14 @@ impl stack_interface::Guest for Component {
                 }
             })
             .collect()
+    }
+}
 
-        // vec![]
+static GLOBAL_BOOL: AtomicBool = AtomicBool::new(false);
 
-        // true
-        // finalizer::finish()
+impl pulumi_settings::Guest for Component {
+    fn set_in_preview(in_preview: bool) {
+        GLOBAL_BOOL.store(in_preview, Ordering::SeqCst);
     }
 }
 
@@ -122,6 +127,7 @@ impl register_interface::Guest for Component {
             request.name.to_string(),
             object,
             outputs,
+            GLOBAL_BOOL.load(Ordering::SeqCst),
         );
 
         RegisterResourceResult {
@@ -153,10 +159,12 @@ impl register_interface::Guest for Component {
             })
             .collect::<HashMap<_, _>>();
 
-        let (_, field_outputs) =
-            refcell
-                .borrow_mut()
-                .create_resource_invoke_node(request.token, object, outputs);
+        let (_, field_outputs) = refcell.borrow_mut().create_resource_invoke_node(
+            request.token,
+            object,
+            outputs,
+            GLOBAL_BOOL.load(Ordering::SeqCst),
+        );
 
         ResourceInvokeResult {
             fields: field_outputs