Dynamic load libraries for external functions

[artP2]

Things that need attention:

• Where the (standard) library directory will be located.
• Write tests

[artP2]

Shouldn't library_api.h depend on the rest of the project? This would make sense for independent library developers.

[Grillo-0]

Some first review comments.

The commit structure and message needs some work, it would be great if you describe more of each commit with a body, some of the time a single line doesn't do the trick.

[artP2]

My commits were quite messy, now it should be much more concise. But I'm not happy with library_api.h in the last commit, any suggestions?

[Grillo-0]

My commits were quite messy, now it should be much more concise. But I'm not happy with library_api.h in the last commit, any suggestions?

I don't see a problem with the library_api.h in the last commit, it is part of the stdlib and on this commit you are creating the stdlib.

[Grillo-0]

About the commit messages, much better, just one nitpick, capitalize the subject lines, and also you forgot to capitalize the body of the first commit

[Grillo-0]

Suggested change

	if (symbol_node->type == FUNCTION){
	size_t buffer_size = 1024;
	char *buffer = (char*) calloc(1, buffer_size);
	FILE *tmp_out = fmemopen(buffer, buffer_size, "w+");
	for (size_t i = 0; i < args_node->childs.len; i++) {
	do_calls(ast, tmp_out, VEC_AT(&args_node->childs, i));
	}
	fflush(tmp_out);
	fprintf(out, "%s", symbol_node->fp(buffer));
	fclose(tmp_out);
	free(buffer);
	}else{
	for (size_t i = 0; i < args_node->childs.len; i++) {
	do_calls(ast, out, VEC_AT(&args_node->childs, i));
	}
	if (symbol_node->type == FUNCTION){
	size_t buffer_size = 1024;
	char *buffer = (char*) calloc(1, buffer_size);
	FILE *tmp_out = fmemopen(buffer, buffer_size, "w+");
	}
	for (size_t i = 0; i < args_node->childs.len; i++) {
	do_calls(ast, tmp_out, VEC_AT(&args_node->childs, i));
	}
	if (symbol_node->type == FUNCTION){
	fflush(tmp_out);
	fprintf(out, "%s", symbol_node->fp(buffer));
	fclose(tmp_out);
	free(buffer);
	}

[Grillo-0]

I think this could be a function pointer type, and also be exposed to the user in sseparate header file, along with extern_function.

[Grillo-0]

hum, maybe create an external lib just for testing inisde the vinumc project. If you want to test the stdlib behavior (which we probably should) create a test dir on the stdlib project.

[artP2]

that was the purpose of the stdlib of this pr

[Grillo-0]

I see, but I don't like that vinumc tests depend on another project.

Create another lib inside test for isolating the two projects. For now, it could be just a dumb function that returns some string, for the current tests it will suffice.

The stdlib part of this PR will be the starting point.

[Grillo-0]

Also, documentation stuff.

Add an entry to the list of subprojects on the ./README.md and also create a separate README.md for stdlib.

Also, we need a way to document the API used for creating an external lib. Maybe create a file on the docs folder showing how to do it?

[Grillo-0]

Also, let's start using the semantic versioning, bump vinumc version to 0.1.0.