Method read_js_string

crates/tinywasm/src/reference.rs:316–326

Reads a JavaScript-style utf-16 string from memory.

(&self, store: &Store, offset: usize, len: usize)

    /// Reads a JavaScript-style utf-16 string from memory.
    pub fn read_js_string(&self, store: &Store, offset: usize, len: usize) -> Result<String> {
        let bytes = self.read_vec(store, offset, len)?;
        let mut string = String::new();
        for i in 0..(len / 2) {
            let c = u16::from_le_bytes([bytes[i * 2], bytes[i * 2 + 1]]);
            string.push(
                char::from_u32(u32::from(c)).ok_or_else(|| crate::Error::Other("Invalid UTF-16 string".to_string()))?,
            );
        }
        Ok(string)
    }
}

fn table_element_to_value(element_type: WasmType, element: TableElement) -> WasmValue {