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Improved any support, removed C Var args

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This commit is contained in:
Krzosa Karol
2022-10-04 14:15:22 +02:00
parent 3c172233f6
commit e23eaf1394
4 changed files with 71 additions and 61 deletions
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114
core_codegen_c_language.cpp
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@@ -5,7 +5,7 @@ global S32 global_indent;
global S32 is_inside_struct;
function void gen_ast(Ast *ast);
function bool gen_expr(Ast_Expr *ast, Ast_Type *type_of_var = 0, bool is_vargs = false);
function bool gen_expr(Ast_Expr *ast);
function void
gen_indent(){
@@ -270,6 +270,35 @@ enum {
DONT_EMIT_VALUE = 1,
};
function void
gen_pointer_to_lvalue(Ast_Expr *expr){
gen("&(");
gen_simple_decl(expr->resolved_type);
gen(")");
gen("{");
gen_expr(expr);
gen("}");
}
function void
gen_try_any_or_slice(Ast_Expr *expr, Ast_Type *decl_type){
// We want normal values to get boxed as Any pointers
// but other then that we shouldn't box other Any values
if(expr->kind != AST_COMPOUND && is_any(decl_type) && !is_any(expr->resolved_type)){
gen("(Any){");
gen_pointer_to_lvalue(expr);
gen(", %d}", expr->resolved_type->type_id);
}
else if(expr->kind == AST_IDENT && is_slice(decl_type)){
Ast_Atom *atom = (Ast_Atom *)expr;
gen("{%d, ", atom->resolved_type->arr.size);
gen_expr(expr);
gen("}");
}
else gen_expr(expr);
}
function void
gen_var(Ast_Decl *decl, B32 emit_value, B32 scope_names){
if(is_flag_set(decl->flags, AST_FOREIGN)) gen("extern ");
@@ -282,7 +311,7 @@ gen_var(Ast_Decl *decl, B32 emit_value, B32 scope_names){
if(decl->expr){
gen(" = ");
gen_expr(decl->expr, decl->type);
gen_try_any_or_slice(decl->expr, decl->type);
} else { // Default zero
if(is_numeric(decl->type)){
gen(" = 0");
@@ -297,14 +326,9 @@ gen_lambda(Intern_String name, Ast_Lambda *lambda, B32 generate_block = true){
gen_simple_decl(lambda->resolved_type->func.ret, name);
gen("(");
For(lambda->args){
if(is_flag_set(it->flags, AST_ANY_VARGS)){
gen("...");
}
else{
gen_var(it, DONT_EMIT_VALUE, true);
if(&it != (lambda->args.end() - 1))
gen(", ");
}
gen_var(it, DONT_EMIT_VALUE, true);
if(&it != (lambda->args.end() - 1))
gen(", ");
}
gen(")");
@@ -315,30 +339,25 @@ gen_lambda(Intern_String name, Ast_Lambda *lambda, B32 generate_block = true){
}
function bool
gen_expr(Ast_Expr *ast, Ast_Type *type_of_var, bool is_vargs){
gen_expr(Ast_Expr *ast){
switch(ast->kind){
CASE(IDENT, Atom){
if(node->resolved_decl->kind == AST_MODULE_NAMESPACE || node->resolved_decl->kind == AST_FILE_NAMESPACE)
return false;
if(type_of_var && is_slice(type_of_var) && is_array(node->resolved_decl->type)){
assert(!is_vargs);
gen("{%d, ", (int)node->resolved_decl->type->arr.size);
gen("%Q}", node->intern_val);
}
/// @edit
// if(type_of_var && is_slice(type_of_var) && is_array(node->resolved_decl->type)){
// gen("{%d, ", (int)node->resolved_decl->type->arr.size);
// gen("%Q}", node->intern_val);
// }
else if(type_of_var && !is_any(ast->resolved_type) && is_any(type_of_var)){
if(is_vargs){
gen_expr(ast, 0, is_vargs);
}
else {
gen("(Any){&");
gen_expr(ast);
gen(", %d}", ast->resolved_type->type_id);
}
}
// else if(type_of_var && !is_any(ast->resolved_type) && is_any(type_of_var)){
// gen("(Any){&");
// gen_expr(ast);
// gen(", %d}", ast->resolved_type->type_id);
// }
else if(node->resolved_decl->kind == AST_LAMBDA){
if(node->resolved_decl->kind == AST_LAMBDA){
gen("%Q", node->resolved_decl->unique_name);
}
@@ -351,17 +370,13 @@ gen_expr(Ast_Expr *ast, Ast_Type *type_of_var, bool is_vargs){
}
CASE(VALUE, Atom){
if(is_any(type_of_var)){
if(is_vargs){
gen("(Any){&");
gen("("); gen_simple_decl(node->type); gen("){"); gen_value(node->pos, node->value); gen("}");
gen(", %d}", node->type->type_id);
}
else{
gen_value(node->pos, node->value);
}
return true;
}
// @edit
// if(is_any(type_of_var)){
// gen("(Any){&");
// gen("("); gen_simple_decl(node->type); gen("){"); gen_value(node->pos, node->value); gen("}");
// gen(", %d}", node->type->type_id);
// return true;
// }
B32 written = gen_value(node->pos, node->value);
if(!written) {
@@ -377,7 +392,7 @@ gen_expr(Ast_Expr *ast, Ast_Type *type_of_var, bool is_vargs){
CASE(INDEX, Index){
gen("(");
gen_expr(node->expr, 0, is_vargs);
gen_expr(node->expr);
if(node->index_original_type == type_string){
gen(".str");
}
@@ -398,11 +413,11 @@ gen_expr(Ast_Expr *ast, Ast_Type *type_of_var, bool is_vargs){
CASE(BINARY, Binary){
if(node->op == TK_Dot){
if(gen_expr(node->left, 0, 0)){
if(gen_expr(node->left)){
if(node->dot_access_step_resolution && node->dot_access_step_resolution->kind == TYPE_POINTER) gen("->");
else gen(".");
}
gen_expr(node->right, 0, 0);
gen_expr(node->right);
return true;
}
@@ -470,7 +485,7 @@ gen_expr(Ast_Expr *ast, Ast_Type *type_of_var, bool is_vargs){
CASE(CALL, Call){
gen("%Q(", node->resolved_decl->unique_name);
For(node->exprs){
gen_expr(it->item, it->resolved_type, is_flag_set(it->flags, AST_ANY_VARGS));
gen_try_any_or_slice(it->item, it->resolved_type);
if(!node->exprs.is_last(&it)) gen(", ");
}
gen(")");
@@ -478,20 +493,13 @@ gen_expr(Ast_Expr *ast, Ast_Type *type_of_var, bool is_vargs){
}
CASE(COMPOUND, Call){
if(is_vargs){
For(node->exprs){
gen_expr(it->item, it->resolved_type, true);
if(!node->exprs.is_last(&it)) gen(", ");
}
return true;
}
gen("(");
gen_simple_decl(node->resolved_type);
gen(")");
gen("{");
// We need to double wrap it because Any is a pointer
// We need to pass it a compound array
if(is_slice(node->resolved_type)) {
gen(".len = %d, ", node->exprs.len);
gen(".data = (");
@@ -506,12 +514,12 @@ gen_expr(Ast_Expr *ast, Ast_Type *type_of_var, bool is_vargs){
gen(".%Q = ", it->resolved_name);
else if(is_array(node->resolved_type))
gen("[%d] = ", (int)it->resolved_index);
gen_expr(it->item, it->resolved_type);
gen_try_any_or_slice(it->item, it->resolved_type);
if(!node->exprs.is_last(&it)) gen(", ");
}
if(is_slice(node->resolved_type)) gen("}");
if(is_slice(node->resolved_type)) gen("}");
gen("}");
BREAK();
}