I'm encountering errors in importing a javascript file into a vue.js
component:
This is the content of /components sub-folder:
/startingV/src/components$ ls -lah
total 132K
drwxr-xr-x 2 marco marco 4,0K dic 26 11:22 .
drwxr-xr-x 5 marco marco 4,0K dic 26 09:32 ..
-rw-r--r-- 1 marco marco 441 nov 2 2016 Counter.vue
-rw-r--r-- 1 marco marco 441 dic 21 15:13 FormValidation.vue
-rw-r--r-- 1 marco marco 100K dic 26 10:38 js_plumbing.js
-rw-r--r-- 1 marco marco 9,3K dic 26 10:38 js_plumbing.wasm
-rw-r--r-- 1 marco marco 473 dic 26 11:14 Result.vue
When compiling:
Failed to compile.
./src/components/js_plumbing.js
Module not found: Error: Can't resolve 'fs' in
'/home/marco/cpp/WebAssemblyinAction
/Appendix_B/B.1_ccall/startingV/src/components'
this is the Result.vue file:
template>
<p button @click="callAdd">Add!</p>
</template>
<script>
import * as js_plumbing from './js_plumbing'
export default {
data () {
return {
result: null
}
},
methods: {
callAdd() {
const result = Module.ccall('js_plumbing.Add',
'number',
['number', 'number'],
[1, 2]);
console.log('Result: ${result}');
}
}
}
</script>
The js_plumbing.js and the js_plumbing.wasm files have been generated
through this command :
emcc add.c -o js_plumbing.js -s
EXTRA_EXPORTED_RUNTIME_METHODS=['ccall','cwrap']
where add.c is:
#include <stdlib.h>
#include <emscripten.h>
// If this is an Emscripten (WebAssembly) build then...
#ifdef __EMSCRIPTEN__
#include <emscripten.h>
#endif
#ifdef __cplusplus
extern "C" { // So that the C++ compiler does not rename our function
names
#endif
EMSCRIPTEN_KEEPALIVE
int Add(int value1, int value2)
{
return (value1 + value2);
}
#ifdef __cplusplus
}
#endif
This is the link I took some info about how to generate the .js and .wasm
files:
https://emscripten.org/docs/porting/connecting_cpp_and_javascript/Interacting-with-code.html#interacting-with-code-ccall-cwrap
How to solve it?
Marco
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