motiejus/zig
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more C header interoperability

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This commit is contained in:
Andrew Kelley
2015-12-03 17:06:04 -07:00
parent 96d4d0d674
commit a398afa7cc
5 changed files with 117 additions and 59 deletions
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19
src/codegen.cpp
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@@ -951,6 +951,9 @@ static Buf *to_c_type(CodeGen *g, AstNode *type_node) {
} else if (type_entry == g->builtin_types.entry_i32) {
g->c_stdint_used = true;
return buf_create_from_str("int32_t");
} else if (type_entry == g->builtin_types.entry_unreachable) {
g->c_unreachable_used = true;
return g->c_unreachable_macro;
} else {
zig_panic("TODO to_c_type");
}
@@ -968,6 +971,9 @@ static void generate_h_file(CodeGen *g) {
Buf *extern_c_macro = buf_sprintf("%s_EXTERN_C", buf_ptr(g->root_out_name));
buf_upcase(extern_c_macro);
g->c_unreachable_macro = buf_sprintf("%s_UNREACHABLE", buf_ptr(g->root_out_name));
buf_upcase(g->c_unreachable_macro);
Buf h_buf = BUF_INIT;
buf_resize(&h_buf, 0);
for (int fn_def_i = 0; fn_def_i < g->fn_defs.length; fn_def_i += 1) {
@@ -979,9 +985,11 @@ static void generate_h_file(CodeGen *g) {
if (fn_proto->visib_mod != FnProtoVisibModExport)
continue;
Buf *return_type_c = to_c_type(g, fn_proto->return_type);
buf_appendf(&h_buf, "%s %s %s(",
buf_ptr(export_macro),
buf_ptr(to_c_type(g, fn_proto->return_type)),
buf_ptr(return_type_c),
buf_ptr(&fn_proto->name));
if (fn_proto->params.length) {
@@ -994,10 +1002,13 @@ static void generate_h_file(CodeGen *g) {
if (param_i < fn_proto->params.length - 1)
buf_appendf(&h_buf, ", ");
}
buf_appendf(&h_buf, ");\n");
buf_appendf(&h_buf, ")");
} else {
buf_appendf(&h_buf, "void);\n");
buf_appendf(&h_buf, "void)");
}
buf_appendf(&h_buf, ";\n");
}
Buf *ifdef_dance_name = buf_sprintf("%s_%s_H",
@@ -1009,6 +1020,8 @@ static void generate_h_file(CodeGen *g) {
if (g->c_stdint_used)
fprintf(out_h, "#include <stdint.h>\n");
if (g->c_unreachable_used)
fprintf(out_h, "#define %s __attribute__((__noreturn__)) void\n", buf_ptr(g->c_unreachable_macro));
fprintf(out_h, "\n");