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oh, actually it was

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This commit is contained in:
Josh Wolfe 2017-09-11 20:39:42 -07:00
parent e52418097d
commit 99cb6e955a
1 changed files with 46 additions and 26 deletions
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62
src/parsec.cpp
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@ -2194,43 +2194,63 @@ static void visit_fn_decl(Context *c, const FunctionDecl *fn_decl) {
return; return;
} }
ZigList<Buf*> fake_names;
for (size_t i = 0; i < proto_node->data.fn_proto.params.length; i += 1) { for (size_t i = 0; i < proto_node->data.fn_proto.params.length; i += 1) {
AstNode *param_node = proto_node->data.fn_proto.params.at(i); AstNode *param_node = proto_node->data.fn_proto.params.at(i);
const ParmVarDecl *param = fn_decl->getParamDecl(i); const ParmVarDecl *param = fn_decl->getParamDecl(i);
const char *name = decl_name(param); const char *name = decl_name(param);
fake_names.append(buf_create_from_str(name)); Buf *proto_param_name;
buf_append_char(fake_names.at(i), '_'); if (strlen(name) != 0) {
if (strlen(name) == 0) { proto_param_name = buf_create_from_str(name);
Buf *proto_param_name = param_node->data.param_decl.name;
if (proto_param_name == nullptr) {
param_node->data.param_decl.name = buf_sprintf("arg%" ZIG_PRI_usize "", i);
} else { } else {
proto_param_name = param_node->data.param_decl.name;
if (proto_param_name == nullptr) {
proto_param_name = buf_sprintf("arg%" ZIG_PRI_usize "", i);
}
}
param_node->data.param_decl.name = proto_param_name; param_node->data.param_decl.name = proto_param_name;
} }
} else {
param_node->data.param_decl.name = buf_create_from_str(name); if (!fn_decl->hasBody()) {
} // just a prototype
c->root->data.root.top_level_decls.append(proto_node);
return;
} }
if (fn_decl->hasBody()) { // actual function definition with body
Stmt *body = fn_decl->getBody(); Stmt *body = fn_decl->getBody();
AstNode *actual_body_node = trans_stmt(c, nullptr, body);
AstNode *fn_def_node = trans_create_node(c, NodeTypeFnDef); assert(actual_body_node != skip_add_to_block_node);
fn_def_node->data.fn_def.fn_proto = proto_node; if (actual_body_node == nullptr) {
fn_def_node->data.fn_def.body = trans_stmt(c, nullptr, body);
assert(fn_def_node->data.fn_def.body != skip_add_to_block_node);
if (fn_def_node->data.fn_def.body == nullptr) {
emit_warning(c, fn_decl->getLocation(), "unable to translate function"); emit_warning(c, fn_decl->getLocation(), "unable to translate function");
return; return;
} }
proto_node->data.fn_proto.fn_def_node = fn_def_node; // it worked
c->root->data.root.top_level_decls.append(fn_def_node);
return; AstNode *parameter_init_block = trans_create_node(c, NodeTypeBlock);
for (size_t i = 0; i < proto_node->data.fn_proto.params.length; i += 1) {
AstNode *param_node = proto_node->data.fn_proto.params.at(i);
Buf *good_name = param_node->data.param_decl.name;
// TODO: avoid name collisions
Buf *mangled_name = buf_sprintf("_arg_%s", buf_ptr(good_name));
param_node->data.param_decl.name = mangled_name;
// var c_name = _mangled_name;
AstNode *parameter_init = trans_create_node_var_decl_local(c, false, good_name, nullptr, trans_create_node_symbol(c, mangled_name));
parameter_init_block->data.block.statements.append(parameter_init);
} }
c->root->data.root.top_level_decls.append(proto_node); parameter_init_block->data.block.statements.append(actual_body_node);
AstNode *fn_def_node = trans_create_node(c, NodeTypeFnDef);
fn_def_node->data.fn_def.fn_proto = proto_node;
fn_def_node->data.fn_def.body = parameter_init_block;
proto_node->data.fn_proto.fn_def_node = fn_def_node;
c->root->data.root.top_level_decls.append(fn_def_node);
} }
static AstNode *resolve_typdef_as_builtin(Context *c, const TypedefNameDecl *typedef_decl, const char *primitive_name) { static AstNode *resolve_typdef_as_builtin(Context *c, const TypedefNameDecl *typedef_decl, const char *primitive_name) {