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/* SPDX-License-Identifier: GPL-3.0-or-later */
#ifndef SCOPE_H
#define SCOPE_H
#include "ast.h"
#include "debug.h"
enum scope_flags {
SCOPE_PUBLIC = (1 << 0),
SCOPE_FILE = (1 << 1),
};
/* basic linked list for now, can probably be optimized into some kind of hash
* table later */
struct visible {
struct ast_node *node;
struct scope *owner;
struct visible *next;
};
struct scratch {
struct ast_node *node;
struct scratch *next;
};
struct actual {
struct ast_node *node;
struct actual *next;
};
struct callable {
struct proc_node *root;
struct ast_node *id;
struct callable *next;
};
struct param_node {
struct ast_node *type;
struct proc_node *proc;
struct param_node *next;
};
struct proc_node {
struct param_node *primitives;
struct param_node *referential;
struct param_node *fallback;
struct ast_node *proc;
};
struct scope {
struct scope *parent;
enum scope_flags flags;
size_t number;
struct file_ctx fctx;
/* used by the parent to keep track of all its children */
struct scope *next;
struct scope *children;
/* list of actualized functions, shared between all scopes in the
* compilation unit */
struct actual *actuals;
/* for temp stuff */
struct scratch *scratch;
/* types */
/* TODO: add actualized types maybe? */
struct visible *enums;
struct visible *unions;
struct visible *structs;
struct visible *aliases;
struct visible *builtins;
struct visible *templates;
/* basic variables */
struct visible *vars;
struct visible *macros;
/* collect procedures */
struct visible *procs;
/* callables */
struct callable *callable;
};
enum match_flags {
MATCH_GLOBAL = (1 << 0),
MATCH_CALL = (1 << 1),
};
struct scope *create_scope();
struct actual *create_actuals();
void destroy_actuals(struct actual *actuals);
void destroy_visible(struct scope *scope, struct visible *visible);
void destroy_scope(struct scope *scope);
struct scope *create_temp_scope(struct scope *parent);
int scope_add_defaults(struct scope *root);
/* not sure if this should be public */
void scope_destroy_defaults(struct scope *root);
int scope_add_scratch(struct scope *scope, struct ast_node *scratch);
void scope_set_flags(struct scope *scope, enum scope_flags flags);
int scope_flags(struct scope *scope, enum scope_flags flags);
void scope_add_scope(struct scope *parent, struct scope *child);
int scope_add_actual(struct scope *scope, struct ast_node *node);
/* sets a node's owner as scope, and as needed propagates references to public
* things up the file scope chain. */
int scope_add_var(struct scope *scope, struct ast_node *var);
int scope_add_type(struct scope *scope, struct ast_node *type);
int scope_add_proc(struct scope *scope, struct ast_node *proc);
int scope_add_macro(struct scope *scope, struct ast_node *macro);
int scope_add_alias(struct scope *scope, struct ast_node *alias);
int scope_add_template(struct scope *scope, struct ast_node *type_template);
int scope_add_existing_var(struct scope *scope, struct visible *var);
int scope_add_existing_proc(struct scope *scope, struct visible *proc);
/* actuals are global, so technically no need for a file_* */
struct ast_node *scope_find_actual(struct scope *scope, struct ast_node *id);
struct ast_node *scope_find(struct scope *scope, struct ast_node *id);
struct ast_node *scope_find_var(struct scope *scope, struct ast_node *id);
struct ast_node *scope_find_type(struct scope *scope, struct ast_node *id);
struct ast_node *scope_find_proc(struct scope *scope, struct ast_node *id);
struct ast_node *scope_find_macro(struct scope *scope, struct ast_node *id);
struct ast_node *scope_find_alias(struct scope *scope, struct ast_node *id);
struct ast_node *scope_find_template(struct scope *scope, struct ast_node *id);
struct ast_node *file_scope_find(struct scope *scope, struct ast_node *id);
struct ast_node *file_scope_find_var(struct scope *scope, struct ast_node *id);
struct ast_node *file_scope_find_type(struct scope *scope, struct ast_node *id);
struct ast_node *file_scope_find_proc(struct scope *scope, struct ast_node *id);
struct ast_node *file_scope_find_macro(struct scope *scope,
struct ast_node *id);
struct ast_node *file_scope_find_alias(struct scope *scope,
struct ast_node *id);
struct ast_node *file_scope_find_override(struct scope *scope,
struct ast_node *id);
struct ast_node *file_scope_find_template(struct scope *scope,
struct ast_node *id);
struct ast_node *scope_resolve_arr(struct scope *scope, struct ast_node *call);
struct ast_node *scope_resolve_macro(struct scope *scope,
struct ast_node *call);
struct ast_node *scope_resolve_actual(struct scope *scope,
struct ast_node *call);
struct ast_node *scope_resolve_proc(struct scope *scope, struct ast_node *call);
struct ast_node *scope_resolve_call(struct scope *scope, struct ast_node *call);
struct ast_node *scope_resolve_type(struct scope *scope, struct ast_node *type);
struct ast_node *file_scope_resolve_type(struct scope *scope,
struct ast_node *type);
struct ast_node *file_scope_resolve_call(struct scope *scope,
struct ast_node *call);
int implements(enum match_flags flags, struct scope *scope,
struct ast_node *arg_type,
struct ast_node *param_type);
int primitive_type(struct ast_node *type);
int fully_qualified(struct ast_node *type);
#endif /* SCOPE_H */
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