Adding rust support

crates/libjrpc/src/compile.rs

@@ -2,24 +2,37 @@ use std::{collections::HashMap, path::PathBuf};
 
 use anyhow::{Context, Result};
 
-use crate::ir::{EnumDefinition, ServiceDefinition, TypeDefinition};
+use crate::{
+    ir::{EnumDefinition, ServiceDefinition, TypeDefinition},
+    IR,
+};
 
 pub trait Compile {
+    fn new(options: &HashMap<String, String>) -> Result<Self>
+    where
+        Self: Sized;
+
     fn name(&self) -> String;
 
-    fn start(&mut self, ctx: &mut CompileContext, options: HashMap<String, String>) -> Result<()>;
+    fn start(&mut self, ctx: &mut CompileContext) -> Result<()>;
 
-    fn generate_type(&mut self, ctx: &mut CompileContext, definition: TypeDefinition)
+    fn generate_type(
-        -> Result<()>;
+        &mut self,
-    fn generate_enum(&mut self, ctx: &mut CompileContext, definition: EnumDefinition)
+        ctx: &mut CompileContext,
-        -> Result<()>;
+        definition: &TypeDefinition,
+    ) -> Result<()>;
+    fn generate_enum(
+        &mut self,
+        ctx: &mut CompileContext,
+        definition: &EnumDefinition,
+    ) -> Result<()>;
     fn generate_service(
         &mut self,
         ctx: &mut CompileContext,
-        definition: ServiceDefinition,
+        definition: &ServiceDefinition,
     ) -> Result<()>;
 
-    fn finalize(&mut self, ctx: &mut CompileContext) -> Result<()>;
+    fn finalize(&mut self, ctx: &mut CompileContext, ir: &IR) -> Result<()>;
 }
 
 pub struct CompileContext {
@@ -42,34 +55,57 @@ impl CompileContext {
 }
 
 pub struct FileGenerator {
-    content: String,
+    content: Vec<String>,
 }
 
 impl FileGenerator {
     pub fn new() -> Self {
         FileGenerator {
-            content: String::new(),
+            content: Vec::new(),
         }
     }
 
-    pub fn a<T: ToString>(&mut self, indent: u32, content: T) {
+    pub fn a<T: ToString>(&mut self, indent: usize, content: T) {
-        for _ in 0..indent {
+        let line = "    ".repeat(indent) + &content.to_string();
-            self.content.push_str("    ");
+        self.content.push(line);
     }
-        self.content.push_str(&content.to_string());
+
-        self.content.push_str("\n");
+    pub fn a0<T: ToString>(&mut self, content: T) {
+        self.a(0, content);
+    }
+
+    pub fn a1<T: ToString>(&mut self, content: T) {
+        self.a(1, content);
+    }
+
+    pub fn a2<T: ToString>(&mut self, content: T) {
+        self.a(2, content);
+    }
+
+    pub fn a3<T: ToString>(&mut self, content: T) {
+        self.a(3, content);
+    }
+
+    pub fn a4<T: ToString>(&mut self, content: T) {
+        self.a(4, content);
+    }
+
+    pub fn a5<T: ToString>(&mut self, content: T) {
+        self.a(5, content);
+    }
+    pub fn a6<T: ToString>(&mut self, content: T) {
+        self.a(6, content);
     }
 
     pub fn add_line(&mut self, line: &str) {
-        self.content.push_str(line);
+        self.content.push(line.to_string());
-        self.content.push_str("\n");
     }
 
-    pub fn get_content(&mut self) -> String {
+    pub fn get_content(&self) -> String {
-        self.content.clone()
+        self.content.join("\n")
     }
 
     pub fn into_content(self) -> String {
-        self.content
+        self.get_content()
     }
 }

crates/libjrpc/src/ir.rs

@@ -11,7 +11,7 @@ use crate::parser::{
     EnumStatement, Node, ParserPosition, RootNode, ServiceStatement, TypeStatement,
 };
 
-static BUILT_INS: [&str; 5] = ["int", "float", "string", "boolean", "bytes"];
+static BUILT_INS: [&str; 6] = ["int", "float", "string", "boolean", "bytes", "void"];
 
 pub trait Definition {
     fn get_position(&self) -> ParserPosition;
@@ -37,17 +37,53 @@ pub enum Type {
     String,
     Bool,
     Bytes,
+    Void,
     Custom(String),
 }
+
+impl ToString for Type {
+    fn to_string(&self) -> String {
+        match self {
+            Type::Int => "int".to_string(),
+            Type::Float => "float".to_string(),
+            Type::String => "string".to_string(),
+            Type::Bool => "bool".to_string(),
+            Type::Bytes => "bytes".to_string(),
+            Type::Void => "void".to_string(),
+            Type::Custom(name) => name.clone(),
+        }
+    }
+}
+
 impl Hash for Type {
     fn hash<H: Hasher>(&self, state: &mut H) {
-        match self {
+        self.to_string().hash(state);
-            Type::Int => "int".hash(state),
+    }
-            Type::Float => "float".hash(state),
+}
-            Type::String => "string".hash(state),
+
-            Type::Bool => "bool".hash(state),
+impl From<&String> for Type {
-            Type::Bytes => "bytes".hash(state),
+    fn from(value: &String) -> Self {
-            Type::Custom(name) => name.hash(state),
+        Self::from(value.as_str())
+    }
+}
+
+impl From<String> for Type {
+    fn from(value: String) -> Self {
+        Self::from(value.as_str())
+    }
+}
+
+impl From<&str> for Type {
+    fn from(s: &str) -> Self {
+        match s {
+            "int" => Type::Int,
+            "float" => Type::Float,
+            "string" => Type::String,
+            "bool" => Type::Bool,
+            "boolean" => Type::Bool,
+            "bytes" => Type::Bytes,
+            "void" => Type::Void,
+            _ => Type::Custom(s.to_string()),
         }
     }
 }
@@ -137,17 +173,6 @@ pub struct MethodDecorators {
     pub return_description: Option<String>,
 }
 
-fn typename_to_type(name: &str) -> Type {
-    match name {
-        "int" => Type::Int,
-        "float" => Type::Float,
-        "string" => Type::String,
-        "boolean" => Type::Bool,
-        "bool" => Type::Bool,
-        _ => Type::Custom(name.to_string()),
-    }
-}
-
 fn build_type(stmt: &TypeStatement) -> Result<TypeDefinition> {
     let mut typedef = TypeDefinition {
         position: stmt.position.clone(),
@@ -157,7 +182,7 @@ fn build_type(stmt: &TypeStatement) -> Result<TypeDefinition> {
     };
 
     for field in &stmt.fields {
-        let typ = typename_to_type(&field.fieldtype);
+        let typ = Type::from(&field.fieldtype);
         typedef.depends.insert(typ.clone());
 
         if let Some(maptype) = &field.map {
@@ -171,7 +196,7 @@ fn build_type(stmt: &TypeStatement) -> Result<TypeDefinition> {
             typ: typ.clone(),
             array: field.array,
             optional: field.optional,
-            map: field.map.as_ref().map(|s| typename_to_type(s)),
+            map: field.map.as_ref().map(|s| Type::from(s)),
         });
     }
 
@@ -222,8 +247,8 @@ fn build_service(stmt: &ServiceStatement) -> Result<ServiceDefinition> {
             name: method.name.clone(),
             inputs: Vec::new(),
             output: method.return_type.as_ref().map(|rt| {
-                let typ = typename_to_type(&rt.fieldtype);
+                let typ = Type::from(&rt.fieldtype);
-                if typ != Type::Custom("void".to_string()) {
+                if typ != Type::Void {
                     servdef.depends.insert(typ.clone());
                 }
                 MethodOutput {
@@ -240,7 +265,7 @@ fn build_service(stmt: &ServiceStatement) -> Result<ServiceDefinition> {
 
         let mut optional_starts = false;
         for inp in &method.inputs {
-            let typ = typename_to_type(&inp.fieldtype);
+            let typ = Type::from(&inp.fieldtype);
             servdef.depends.insert(typ.clone());
 
             if optional_starts && !inp.optional {

crates/libjrpc/src/lib.rs

@@ -13,6 +13,11 @@ pub use tokenizer::{tokenize, Token, TokenError, TokenPosition, TokenType};
 
 #[cfg(test)]
 mod test {
+    use crate::{
+        compile::{Compile, CompileContext},
+        targets::{self, rust::RustCompiler},
+    };
+
     #[cfg(test)]
     #[ctor::ctor]
     fn init() {
@@ -27,4 +32,12 @@ mod test {
 
         println!("{:?}", ir);
     }
+
+    #[test]
+    pub fn generate_rust() {
+        let mut fp = crate::process::FileProcessor::new();
+        let ir = fp.start_compile("./test.jrpc").unwrap();
+
+        targets::compile::<RustCompiler>(ir, "./output/rust").unwrap();
+    }
 }

crates/libjrpc/src/targets/mod.rs

@@ -1 +1,28 @@
-mod rust;
+use anyhow::Result;
+
+use crate::{
+    compile::{Compile, CompileContext},
+    IR,
+};
+
+pub mod rust;
+
+pub fn compile<T: Compile>(ir: IR, output: &str) -> Result<()> {
+    let mut ctx = CompileContext::new(output);
+    let mut compiler = T::new(&ir.options)?;
+    compiler.start(&mut ctx)?;
+
+    for step in ir.steps.iter() {
+        match step {
+            crate::ir::Step::Type(definition) => compiler.generate_type(&mut ctx, &definition)?,
+            crate::ir::Step::Enum(definition) => compiler.generate_enum(&mut ctx, &definition)?,
+            crate::ir::Step::Service(definition) => {
+                compiler.generate_service(&mut ctx, &definition)?
+            }
+        }
+    }
+
+    compiler.finalize(&mut ctx, &ir)?;
+
+    Ok(())
+}

crates/libjrpc/src/targets/rust.rs

@@ -3,25 +3,40 @@ use log::warn;
 use std::collections::{HashMap, HashSet};
 
 use crate::compile::{Compile, CompileContext, FileGenerator};
-use crate::ir::{EnumDefinition, ServiceDefinition, Type, TypeDefinition};
+use crate::ir::{EnumDefinition, ServiceDefinition, Step, Type, TypeDefinition};
 use crate::shared::Keywords;
+use crate::IR;
 
 pub struct RustCompiler {
     crate_name: String,
 }
 
+static RUST_KEYWORDS: [&'static str; 6] = ["type", "return", "static", "pub", "enum", "self"];
+
 impl RustCompiler {
-    fn type_to_rust(typ: Type) -> String {
+    fn type_to_rust(typ: &Type) -> String {
         match typ {
             Type::String => "String".to_string(),
             Type::Int => "i64".to_string(),
             Type::Float => "f64".to_string(),
             Type::Bool => "bool".to_string(),
             Type::Bytes => "Vec<u8>".to_string(),
-            Type::Custom(name) => name,
+            Type::Void => "()".to_string(),
+            Type::Custom(name) => name.clone(),
         }
     }
 
+    fn type_to_rust_ext(typ: &Type, optional: bool, array: bool) -> String {
+        let mut result = Self::type_to_rust(typ);
+        if optional {
+            result = format!("Option<{}>", result);
+        }
+        if array {
+            result = format!("Vec<{}>", result);
+        }
+        result
+    }
+
     fn add_dependencies(
         &mut self,
         file: &mut FileGenerator,
@@ -30,18 +45,18 @@ impl RustCompiler {
         for dep in depends {
             match dep {
                 Type::Custom(name) => {
-                    file.a(0, &format!("use crate::{};", name));
+                    file.a0(&format!("use crate::{};", name));
                 }
                 _ => {}
             }
         }
-        file.a(0, "");
+        file.a0("");
-        file.a(0, "");
+        file.a0("");
         Ok(())
     }
 
     fn fix_keyword_name(name: &str) -> String {
-        if Keywords::is_keyword(name) {
+        if RUST_KEYWORDS.contains(&name) {
             format!("{}_", name)
         } else {
             name.to_string()
@@ -69,23 +84,333 @@ impl RustCompiler {
         }
         result
     }
+
+    fn generate_service_lib(ctx: &CompileContext, ir: &IR) -> Result<()> {
+        let mut f = FileGenerator::new();
+        let mut fc = FileGenerator::new();
+        let mut fs = FileGenerator::new();
+
+        f.a0("pub mod base_lib;");
+        f.a0("pub use base_lib::{JRPCServer, JRPCClient, Result};");
+
+        for step in ir.steps.iter() {
+            match step {
+                Step::Type(def) => {
+                    f.a0(format!("mod {};", Self::to_snake(&def.name)));
+                    f.a(
+                        0,
+                        format!("pub use {}::{};", Self::to_snake(&def.name), def.name),
+                    );
+                }
+                Step::Enum(def) => {
+                    f.a0(format!("mod {};", Self::to_snake(&def.name)));
+                    f.a(
+                        0,
+                        format!("pub use {}::{};", Self::to_snake(&def.name), def.name),
+                    );
+                }
+                Step::Service(def) => {
+                    fs.a0(format!("mod {};", Self::to_snake(&def.name)));
+                    fs.a0(format!(
+                        "pub use {}::{{ {}, {}Handler }};",
+                        Self::to_snake(&def.name),
+                        def.name,
+                        def.name
+                    ));
+
+                    fc.a0(format!("mod {};", Self::to_snake(&def.name)));
+                    fc.a0(format!(
+                        "pub use {}::{};",
+                        Self::to_snake(&def.name),
+                        def.name,
+                    ));
+                }
+            }
+        }
+
+        f.a0("pub mod server;");
+        f.a0("pub mod client;");
+
+        ctx.write_file("src/lib.rs", f.get_content())?;
+        ctx.write_file("src/server/mod.rs", fs.get_content())?;
+        ctx.write_file("src/client/mod.rs", fc.get_content())?;
+
+        Ok(())
+    }
+
+    fn generate_service_server(
+        &mut self,
+        ctx: &mut CompileContext,
+        definition: &ServiceDefinition,
+    ) -> anyhow::Result<()> {
+        let mut f = FileGenerator::new();
+
+        self.add_dependencies(&mut f, &definition.depends)?;
+
+        f.a0("use crate::base_lib::{JRPCServerService, JRPCRequest, Result};");
+        f.a0("use serde_json::Value;");
+        f.a0("use std::sync::Arc;");
+        f.a0("use async_trait::async_trait;");
+
+        f.a0("#[async_trait]");
+        f.a0(format!("pub trait {} {{", definition.name));
+        for method in definition.methods.iter() {
+            let params = method
+                .inputs
+                .iter()
+                .map(|arg| {
+                    format!(
+                        "{}: {}",
+                        Self::fix_keyword_name(&arg.name),
+                        Self::type_to_rust_ext(&arg.typ, arg.optional, arg.array)
+                    )
+                })
+                .collect::<Vec<String>>()
+                .join(", ");
+
+            let ret = method.output.as_ref().map_or_else(
+                || "()".to_owned(),
+                |r| Self::type_to_rust_ext(&r.typ, false, r.array),
+            );
+
+            f.a1("#[allow(non_snake_case)]");
+            f.a(
+                1,
+                format!(
+                    "async fn {}(&self, {}) -> Result<{}>;",
+                    Self::fix_keyword_name(&method.name),
+                    params,
+                    ret
+                ),
+            );
+        }
+        f.a0("}");
+
+        f.a0("");
+        f.a0(format!("pub struct {}Handler {{", definition.name));
+        f.a1(format!(
+            "implementation: Box<dyn {} + Sync + Send + 'static>,",
+            definition.name
+        ));
+        f.a0("}");
+        f.a0("");
+
+        f.a0(format!("impl {}Handler {{", definition.name));
+        f.a1(format!(
+            "pub fn new(implementation: Box<dyn {} + Sync + Send + 'static>) -> Arc<Self> {{",
+            definition.name,
+        ));
+        f.a2("Arc::from(Self { implementation })");
+        f.a1("}");
+        f.a0("}");
+
+        f.a0("");
+
+        f.a0("#[async_trait]");
+        f.a0(format!(
+            "impl JRPCServerService for {}Handler {{",
+            definition.name
+        ));
+        f.a1(format!(
+            "fn get_id(&self) -> String {{ \"{}\".to_owned() }} ",
+            definition.name
+        ));
+
+        f.a1("");
+
+        f.a1("#[allow(non_snake_case)]");
+        f.a1(
+            "async fn handle(&self, msg: &JRPCRequest, function: &str) -> Result<(bool, Value)> {",
+        );
+        f.a2("match function {");
+
+        // TODO: Implement optional arguments!
+
+        for method in &definition.methods {
+            f.a3(format!(
+                "\"{}\" => {{",
+                Self::fix_keyword_name(&method.name)
+            ));
+            if method.inputs.len() < 1 {
+                f.a5(format!(
+                    "let res = self.implementation.{}().await?;",
+                    method.name
+                ));
+                f.a5("Ok((true, serde_json::to_value(res)?))");
+            } else {
+                f.a4("if msg.params.is_array() {");
+                if method.inputs.len() > 0 {
+                    f.a5(
+                        "let arr = msg.params.as_array().unwrap(); //TODO: Check if this can fail.",
+                    );
+                }
+                f.a5(format!("let res = self.implementation.{}(", method.name));
+                for (i, arg) in method.inputs.iter().enumerate() {
+                    f.a6(format!("serde_json::from_value(arr[{}].clone())", i));
+                    f.a(
+                        7,
+                        format!(
+                            ".map_err(|_| \"Parameter for field '{}' should be of type '{}'!\")?{}",
+                            arg.name,
+                            arg.typ.to_string(),
+                            if i < method.inputs.len() - 1 { "," } else { "" }
+                        ),
+                    );
+                }
+                f.a5(").await?;");
+
+                if let Some(_output) = &method.output {
+                    f.a5("Ok((true, serde_json::to_value(res)?))");
+                } else {
+                    f.a5("_ = res;");
+                    f.a5("Ok((true, Value::Null))");
+                }
+
+                f.a4("} else if msg.params.is_object() {");
+                f.a5("let obj = msg.params.as_object().unwrap();  //TODO: Check if this can fail.");
+                f.a5(format!("let res = self.implementation.{}(", method.name));
+                for (i, arg) in method.inputs.iter().enumerate() {
+                    f.a6(format!(
+                    "serde_json::from_value(obj.get(\"{}\").ok_or(\"Parameter of field '{}' missing!\")?.clone())",
+                    arg.name,
+                    arg.name
+                ));
+                    f.a(
+                        7,
+                        format!(
+                            ".map_err(|_| \"Parameter for field {} should be of type '{}'!\")?{}",
+                            arg.name,
+                            arg.typ.to_string(),
+                            if i < method.inputs.len() - 1 { "," } else { "" }
+                        ),
+                    );
+                }
+                f.a5(").await?;");
+                if let Some(_output) = &method.output {
+                    f.a5("Ok((true, serde_json::to_value(res)?))");
+                } else {
+                    f.a5("Ok((false, Value::Null))");
+                }
+                f.a4("} else {");
+                f.a5("Err(Box::from(\"Invalid parameters??\".to_owned()))");
+                f.a4("}");
+            }
+            f.a3("}");
+        }
+        f.a3("_ => { Err(Box::from(format!(\"Invalid function {}\", function).to_owned())) },");
+
+        f.a2("}");
+        f.a1("}");
+        f.a0("}");
+
+        ctx.write_file(
+            &format!("src/server/{}.rs", Self::to_snake(&definition.name)),
+            f.into_content(),
+        )?;
+
+        Ok(())
+    }
+
+    fn generate_service_client(
+        &mut self,
+        ctx: &mut CompileContext,
+        definition: &ServiceDefinition,
+    ) -> anyhow::Result<()> {
+        let mut f = FileGenerator::new();
+
+        self.add_dependencies(&mut f, &definition.depends)?;
+
+        f.a0("use crate::base_lib::{JRPCClient, JRPCRequest, Result};");
+        f.a0("use serde_json::json;");
+        f.a0("");
+        f.a0(format!("pub struct {} {{", definition.name));
+        f.a1("client: JRPCClient,");
+        f.a0("}");
+        f.a0("");
+
+        f.a0(format!("impl {} {{", definition.name));
+        f.a1("pub fn new(client: JRPCClient) -> Self {");
+        f.a2(format!("Self {{ client }}"));
+        f.a1("}");
+
+        f.a0("");
+
+        for method in &definition.methods {
+            let params = method
+                .inputs
+                .iter()
+                .map(|arg| {
+                    format!(
+                        "{}: {}",
+                        Self::fix_keyword_name(&arg.name),
+                        Self::type_to_rust_ext(&arg.typ, arg.optional, arg.array)
+                    )
+                })
+                .collect::<Vec<String>>()
+                .join(", ");
+            let ret = method.output.as_ref().map_or("()".to_string(), |output| {
+                Self::type_to_rust_ext(&output.typ, false, output.array)
+            });
+
+            f.a1("#[allow(non_snake_case)]");
+            f.a1(format!(
+                "pub async fn {}(&self, {}) -> Result<{}> {{",
+                method.name, params, ret
+            ));
+
+            f.a2("let l_req = JRPCRequest {");
+            f.a3("jsonrpc: \"2.0\".to_owned(),");
+            f.a3("id: None, // 'id' will be set by the send_request function");
+            f.a3(format!(
+                "method: \"{}.{}\".to_owned(),",
+                definition.name, method.name
+            ));
+            f.a3(format!(
+                "params: json!([{}])",
+                method
+                    .inputs
+                    .iter()
+                    .map(|e| Self::fix_keyword_name(&e.name))
+                    .collect::<Vec<String>>()
+                    .join(", ")
+            ));
+            f.a2("};");
+
+            if let Some(output) = &method.output {
+                f.a2("let l_res = self.client.send_request(l_req).await;");
+                f.a2("match l_res {");
+                f.a3("Err(e) => Err(e),");
+                if output.typ == Type::Void {
+                    f.a3("Ok(_) => Ok(())");
+                } else {
+                    f.a3("Ok(o) => serde_json::from_value(o).map_err(|e| Box::from(e))");
+                }
+                f.a2("}");
+            } else {
+                f.a2("self.client.send_notification(l_req).await;");
+                f.a2("Ok(())");
+            }
+            f.a1("}");
+        }
+
+        f.a0("}");
+
+        ctx.write_file(
+            &format!("src/client/{}.rs", Self::to_snake(&definition.name)),
+            f.into_content(),
+        )?;
+
+        Ok(())
+    }
 }
 
 impl Compile for RustCompiler {
-    fn name(&self) -> String {
+    fn new(options: &HashMap<String, String>) -> anyhow::Result<Self> {
-        "rust".to_string()
+        let crate_name = if let Some(crate_name) = options.get("rust_crate") {
-    }
+            crate_name.to_string()
-
-    fn start(
-        &mut self,
-        ctx: &mut CompileContext,
-        options: HashMap<String, String>,
-    ) -> anyhow::Result<()> {
-        if let Some(crate_name) = options.get("crate") {
-            self.crate_name = crate_name.to_string();
         } else {
             anyhow::bail!("crate option is required for rust compiler");
-        }
+        };
 
         if let Some(allow_bytes) = options.get("allow_bytes") {
             if allow_bytes == "true" {
@@ -93,6 +418,14 @@ impl Compile for RustCompiler {
             }
         }
 
+        Ok(RustCompiler { crate_name })
+    }
+
+    fn name(&self) -> String {
+        "rust".to_string()
+    }
+
+    fn start(&mut self, ctx: &mut CompileContext) -> anyhow::Result<()> {
         ctx.write_file(
             "Cargo.toml",
             include_str!("../../templates/Rust/Cargo.toml")
@@ -105,28 +438,28 @@ impl Compile for RustCompiler {
             include_str!("../../templates/Rust/src/lib.rs").to_owned(),
         )?;
 
-        todo!()
+        Ok(())
     }
 
     fn generate_type(
         &mut self,
         ctx: &mut CompileContext,
-        definition: TypeDefinition,
+        definition: &TypeDefinition,
     ) -> anyhow::Result<()> {
         let mut f = FileGenerator::new();
 
         if definition.fields.iter().any(|e| e.map.is_some()) {
-            f.a(0, "use std::collections::hash_map::HashMap;")
+            f.a0("use std::collections::hash_map::HashMap;")
         }
-        f.a(0, "use serde::{Deserialize, Serialize};");
+        f.a0("use serde::{Deserialize, Serialize};");
 
         self.add_dependencies(&mut f, &definition.depends)?;
 
-        f.a(0, "#[derive(Clone, Debug, Serialize, Deserialize)]");
+        f.a0("#[derive(Clone, Debug, Serialize, Deserialize)]");
-        f.a(0, format!("pub struct {} {{", definition.name));
+        f.a0(format!("pub struct {} {{", definition.name));
-        for field in definition.fields {
+        for field in definition.fields.iter() {
             f.a(1, "#[allow(non_snake_case)]");
-            let mut func = format!("pub {}: ", Self::fix_keyword_name(&field.name));
+            let func = format!("pub {}:", Self::fix_keyword_name(&field.name));
 
             if Keywords::is_keyword(&field.name) {
                 warn!(
@@ -134,7 +467,7 @@ impl Compile for RustCompiler {
                     field.name, field.name
                 );
 
-                f.a(1, "#[serde(rename = \"type\")]");
+                f.a(1, format!("#[serde(rename = \"{}\")]", field.name));
             }
 
             let mut opts = String::new();
@@ -152,19 +485,19 @@ impl Compile for RustCompiler {
                         "{} {}Vec<{}>{},",
                         func,
                         opts,
-                        Self::type_to_rust(field.typ),
+                        Self::type_to_rust(&field.typ),
                         opte
                     ),
                 );
-            } else if let Some(map) = field.map {
+            } else if let Some(map) = &field.map {
                 f.a(
                     1,
                     format!(
-                        "{} {}HashMap<{},{}>{},",
+                        "{} {}HashMap<{}, {}>{},",
                         func,
                         opts,
                         Self::type_to_rust(map),
-                        Self::type_to_rust(field.typ),
+                        Self::type_to_rust(&field.typ),
                         opte
                     ),
                 );
@@ -175,14 +508,14 @@ impl Compile for RustCompiler {
                         "{} {}{}{},",
                         func,
                         opts,
-                        Self::type_to_rust(field.typ),
+                        Self::type_to_rust(&field.typ),
                         opte
                     ),
                 );
             }
         }
 
-        f.a(0, "}");
+        f.a0("}");
 
         ctx.write_file(
             &format!("src/{}.rs", Self::to_snake(&definition.name)),
@@ -195,20 +528,41 @@ impl Compile for RustCompiler {
     fn generate_enum(
         &mut self,
         ctx: &mut CompileContext,
-        definition: EnumDefinition,
+        definition: &EnumDefinition,
     ) -> anyhow::Result<()> {
-        todo!()
+        let mut f = FileGenerator::new();
+        f.a0("use int_enum::IntEnum;");
+        // f.a0("use serde::{Deserialize, Serialize};");
+        f.a0("");
+        f.a0("");
+        f.a0("#[repr(i64)]");
+        f.a0("#[derive(Clone, Copy, Debug, Eq, PartialEq, IntEnum)]");
+        f.a0(format!("pub enum {} {{", definition.name));
+        for val in definition.values.iter() {
+            f.a(1, format!("{} = {},", val.name, val.value));
+        }
+        f.a0("}");
+
+        ctx.write_file(
+            &format!("src/{}.rs", Self::to_snake(&definition.name)),
+            f.into_content(),
+        )?;
+
+        Ok(())
     }
 
     fn generate_service(
         &mut self,
         ctx: &mut CompileContext,
-        definition: ServiceDefinition,
+        definition: &ServiceDefinition,
     ) -> anyhow::Result<()> {
-        todo!()
+        self.generate_service_client(ctx, definition)?;
+        self.generate_service_server(ctx, definition)?;
+        Ok(())
     }
 
-    fn finalize(&mut self, ctx: &mut CompileContext) -> anyhow::Result<()> {
+    fn finalize(&mut self, ctx: &mut CompileContext, ir: &IR) -> anyhow::Result<()> {
-        todo!()
+        Self::generate_service_lib(ctx, ir)?;
+        Ok(())
     }
 }

crates/libjrpc/templates/Rust/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-int-enum = { version ="0.5.0", features = ["serde", "convert"] }
+int-enum = { version = "0.5.0", features = ["serde", "convert"] }
 serde = { version = "1.0.147", features = ["derive"] }
 serde_json = "1.0.88"
 nanoid = "0.4.0"