How to integrate with Rust WASM build?

[gitmalong]

What happens?

I am trying to integrate DuckDb in a Rust Client Side Rendered WASM project as seen here: https://github.com/leptos-rs/leptos/tree/main/examples/tailwind_csr_trunk

When adding duckdb duckdb = { version = "0.8.1", features = ["bundled"] } the build fails with cargo:warning=error: unable to create target: 'No available targets are compatible with triple "wasm32-unknown-unknown"'

To Reproduce

git clone  https://github.com/leptos-rs/leptos/
cd leptos/examples/tailwind_csr_trunk
cargo add duckdb --features bundled
cargo run

OS:

macOS

DuckDB Version:

0.8.1 crate

DuckDB Client:

https://crates.io/crates/duckdb

Full Name:

Ma zhang

Affiliation:

hobby

Have you tried this on the latest master branch?

I have tested with a master build

Have you tried the steps to reproduce? Do they include all relevant data and configuration? Does the issue you report still appear there?

• [X] Yes, I have

[Mause]

This sounds like an issue with your version of clang, see https://github.com/WebAssembly/wasi-sdk/issues/172

[gitmalong]

I just installed llvm 16 via homebrew. Then my build says:

...
  cargo:warning=In file included from duckdb/src/include/duckdb/optimizer/statistics_propagator.hpp:11:

  cargo:warning=In file included from duckdb/src/include/duckdb/common/common.hpp:11:

  cargo:warning=duckdb/src/include/duckdb/common/constants.hpp:11:10: fatal error: 'memory' file not found

  cargo:warning=#include <memory>

  cargo:warning=         ^~~~~~~~

  cargo:warning=In file included from duckdb/third_party/libpg_query/src_common_keywords.cpp:24:

  cargo:warning=duckdb/third_party/libpg_query/include/pg_functions.hpp:3:10: fatal error: 'stdlib.h' file not found

  cargo:warning=#include <stdlib.h>

...

Not sure how I can tell the duckdb build to use my homebrew llvm if this is the root of the problem?

[carlopi]

Welcome @gitmalong!

First a word of advice: coupling duckdb-wasm with Rust will require some effort.

As for how to build duckdb with recent llvm:

CMAKE_LLVM_PATH='/usr/local/opt/llvm' make

has been recently addded just for this purpose.

(Your llvm folder will be somewhere else, but basically if clang++ is located in some/folder/llvm/bin/clang++ then you need to pass CMAKE_LLVM_PATH=some/folder/llvm.

[gh-everglades]

Hello @gitmalong, I am curious if you were able to integrate leptos with duckdb and compile it to wasm. I am developing a project in which the idea is to use egui https://github.com/emilk/egui to build the frontend and I would like to have Duckdb as the database for it. I am using trunk to build and I am getting similar errors like fatal error: 'memory' file not found.

I wonder if you found a solution, I dont want to develop the Frontend in React or something similar.