+#ifndef _PSI_PARSER_H
+#define _PSI_PARSER_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "parser_proc.h"
+
+#define BSIZE 256
+
+typedef int token_t;
+
+typedef struct PSI_Token {
+ token_t type;
+ unsigned line;
+ size_t size;
+ char text[1];
+} PSI_Token;
+
+typedef struct decl_type {
+ char *name;
+ token_t type;
+ struct decl_type *real;
+} decl_type;
+
+static inline decl_type *init_decl_type(token_t type, char *name) {
+ decl_type *t = malloc(sizeof(*t));
+ t->type = type;
+ t->name = strdup(name);
+ return t;
+}
+
+static inline void free_decl_type(decl_type *type) {
+ free(type->name);
+ free(type);
+}
+
+typedef struct decl_typedef {
+ char *alias;
+ decl_type *type;
+} decl_typedef;
+
+static inline decl_typedef *init_decl_typedef(char *name, decl_type *type) {
+ decl_typedef *t = malloc(sizeof(*t));
+ t->alias = strdup(name);
+ t->type = type;
+ return t;
+}
+
+static inline void free_decl_typedef(decl_typedef *t) {
+ free(t->alias);
+ free_decl_type(t->type);
+ free(t);
+}
+
+typedef struct decl_typedefs {
+ size_t count;
+ decl_typedef **list;
+} decl_typedefs;
+
+static decl_typedefs *add_decl_typedef(decl_typedefs *defs, decl_typedef *def) {
+ if (!defs) {
+ defs = calloc(1, sizeof(*defs));
+ }
+ defs->list = realloc(defs->list, ++defs->count * sizeof(*defs->list));
+ defs->list[defs->count-1] = def;
+ return defs;
+}
+
+static void free_decl_typedefs(decl_typedefs *defs) {
+ size_t i;
+
+ for (i = 0; i < defs->count; ++i) {
+ free_decl_typedef(defs->list[i]);
+ }
+ free(defs->list);
+ free(defs);
+}
+
+typedef struct decl_var {
+ char *name;
+ unsigned pointer_level;
+} decl_var;
+
+static inline decl_var *init_decl_var(char *name, unsigned pl) {
+ decl_var *v = malloc(sizeof(*v));
+ v->name = (char *) strdup((const char *) name);
+ v->pointer_level = pl;
+ return v;
+}
+
+static inline void free_decl_var(decl_var *var) {
+ free(var->name);
+ free(var);
+}
+
+typedef struct decl_arg {
+ decl_type *type;
+ decl_var *var;
+} decl_arg;
+
+static inline decl_arg *init_decl_arg(decl_type *type, decl_var *var) {
+ decl_arg *arg = malloc(sizeof(*arg));
+ arg->type = type;
+ arg->var = var;
+ return arg;
+}
+
+static inline void free_decl_arg(decl_arg *arg) {
+ free_decl_type(arg->type);
+ free_decl_var(arg->var);
+ free(arg);
+}
+
+typedef struct decl_vars {
+ decl_var **vars;
+ size_t count;
+} decl_vars;
+
+static inline decl_vars *init_decl_vars(decl_var *var) {
+ decl_vars *vars = malloc(sizeof(*vars));
+ vars->count = 1;
+ vars->vars = malloc(sizeof(*vars->vars));
+ vars->vars[0] = var;
+ return vars;
+}
+
+static inline decl_vars *add_decl_var(decl_vars *vars, decl_var *var) {
+ vars->vars = realloc(vars->vars, ++vars->count * sizeof(*vars->vars));
+ vars->vars[vars->count-1] = var;
+ return vars;
+}
+
+static inline void free_decl_vars(decl_vars *vars) {
+ size_t i;
+
+ for (i = 0; i < vars->count; ++i) {
+ free_decl_var(vars->vars[i]);
+ }
+ free(vars->vars);
+ free(vars);
+}
+
+typedef struct decl_args {
+ decl_arg **args;
+ size_t count;
+} decl_args;
+
+static inline decl_args *init_decl_args(decl_arg *arg) {
+ decl_args *args = malloc(sizeof(*args));
+ args->count = 1;
+ args->args = malloc(sizeof(*args->args));
+ args->args[0] = arg;
+ return args;
+}
+
+static inline decl_args *add_decl_arg(decl_args *args, decl_arg *arg) {
+ args->args = realloc(args->args, ++args->count * sizeof(*args->args));
+ args->args[args->count-1] = arg;
+ return args;
+}
+
+static inline void free_decl_args(decl_args *args) {
+ size_t i;
+
+ for (i = 0; i < args->count; ++i) {
+ free_decl_arg(args->args[i]);
+ }
+ free(args->args);
+ free(args);
+}
+
+typedef struct decl_abi {
+ char *convention;
+} decl_abi;
+
+static inline decl_abi *init_decl_abi(char *convention) {
+ decl_abi *abi = malloc(sizeof(*abi));
+ abi->convention = strdup(convention);
+ return abi;
+}
+
+static inline void free_decl_abi(decl_abi *abi) {
+ free(abi->convention);
+ free(abi);
+}
+
+typedef struct decl {
+ decl_abi *abi;
+ decl_arg *func;
+ decl_args *args;
+ void *dlptr;
+} decl;
+
+static inline decl* init_decl(decl_abi *abi, decl_arg *func, decl_args *args) {
+ decl *d = malloc(sizeof(*d));
+ d->abi = abi;
+ d->func = func;
+ d->args = args;
+ return d;
+}
+
+static inline void free_decl(decl *d) {
+ free_decl_abi(d->abi);
+ free_decl_arg(d->func);
+ free_decl_args(d->args);
+ free(d);
+}
+
+typedef struct decls {
+ size_t count;
+ decl **list;
+} decls;
+
+static inline decls *add_decl(decls *decls, decl *decl) {
+ if (!decls) {
+ decls = calloc(1, sizeof(*decls));
+ }
+ decls->list = realloc(decls->list, ++decls->count * sizeof(*decls->list));
+ decls->list[decls->count-1] = decl;
+ return decls;
+}
+
+static inline void free_decls(decls *decls) {
+ size_t i;
+
+ for (i = 0; i < decls->count; ++i) {
+ free_decl(decls->list[i]);
+ }
+ free(decls->list);
+ free(decls);
+}
+
+typedef struct impl_type {
+ char *name;
+ token_t type;
+} impl_type;
+
+static inline impl_type *init_impl_type(token_t type, char *name) {
+ impl_type *t = malloc(sizeof(*t));
+
+ t->type = type;
+ t->name = (char *) strdup((const char *) name);
+ return t;
+}
+
+static inline void free_impl_type(impl_type *type) {
+ free(type->name);
+ free(type);
+}
+
+typedef struct impl_var {
+ char *name;
+ unsigned reference:1;
+} impl_var;
+
+static inline impl_var *init_impl_var(char *name, int is_reference) {
+ impl_var *var = malloc(sizeof(*var));
+ var->name = (char *) strdup((const char *) name);
+ var->reference = is_reference;
+ return var;
+}
+
+static inline void free_impl_var(impl_var *var) {
+ free(var->name);
+ free(var);
+}
+
+typedef struct impl_def_val {
+ token_t type;
+ union {
+ int64_t digits;
+ double decimals;
+ } v;
+ unsigned is_null:1;
+} impl_def_val;
+
+static inline impl_def_val *init_impl_def_val() {
+ impl_def_val *def = malloc(sizeof(*def));
+ def->type = 0;
+ def->is_null = 1;
+ return def;
+}
+
+static inline void free_impl_def_val(impl_def_val *def) {
+ free(def);
+}
+
+typedef struct impl_arg {
+ impl_type *type;
+ impl_var *var;
+ impl_def_val *def;
+} impl_arg;
+
+static inline impl_arg *init_impl_arg(impl_type *type, impl_var *var, impl_def_val *def) {
+ impl_arg *arg = malloc(sizeof(*arg));
+ arg->type = type;
+ arg->var = var;
+ arg->def = def;
+ return arg;
+}
+
+static inline void free_impl_arg(impl_arg *arg) {
+ free_impl_type(arg->type);
+ free_impl_var(arg->var);
+ if (arg->def) {
+ free_impl_def_val(arg->def);
+ }
+ free(arg);
+}
+
+typedef struct impl_args {
+ impl_arg **args;
+ size_t count;
+} impl_args;
+
+static inline impl_args *init_impl_args(impl_arg *arg) {
+ impl_args *args = malloc(sizeof(*args));
+ args->args = malloc(sizeof(*args->args));
+ if (arg) {
+ args->count = 1;
+ args->args[0] = arg;
+ } else {
+ args->count = 0;
+ args->args = NULL;
+ }
+ return args;
+}
+
+static inline impl_args *add_impl_arg(impl_args *args, impl_arg *arg) {
+ args->args = realloc(args->args, ++args->count * sizeof(*args->args));
+ args->args[args->count-1] = arg;
+ return args;
+}
+
+static inline void free_impl_args(impl_args *args) {
+ size_t i;
+
+ for (i = 0; i < args->count; ++i) {
+ free_impl_arg(args->args[i]);
+ }
+ free(args->args);
+ free(args);
+}
+
+typedef struct impl_func {
+ char *name;
+ impl_args *args;
+ impl_type *return_type;
+} impl_func;
+
+static inline impl_func *init_impl_func(char *name, impl_args *args, impl_type *type) {
+ impl_func *func = malloc(sizeof(*func));
+ func->name = strdup(name);
+ func->args = args ? args : init_impl_args(NULL);
+ func->return_type = type;
+ return func;
+}
+
+static inline void free_impl_func(impl_func *f) {
+ free_impl_type(f->return_type);
+ free_impl_args(f->args);
+ free(f->name);
+ free(f);
+}
+
+typedef struct let_func {
+ token_t type;
+ char *name;
+} let_func;
+
+static inline let_func *init_let_func(token_t type, char *name) {
+ let_func *func = malloc(sizeof(*func));
+ func->type = type;
+ func->name = (char *) strdup((const char *) name);
+ return func;
+}
+
+static inline void free_let_func(let_func *func) {
+ free(func->name);
+ free(func);
+}
+
+typedef struct let_value {
+ let_func *func;
+ impl_var *var;
+ unsigned null_pointer_ref:1;
+} let_value;
+
+static inline let_value *init_let_value(let_func *func, impl_var *var, int null_pointer_ref) {
+ let_value *val = malloc(sizeof(*val));
+ val->null_pointer_ref = null_pointer_ref;
+ val->func = func;
+ val->var = var;
+ return val;
+}
+
+static inline void free_let_value(let_value *val) {
+ if (val->func) {
+ free_let_func(val->func);
+ }
+ if (val->var) {
+ free_impl_var(val->var);
+ }
+ free(val);
+}
+
+typedef struct let_stmt {
+ decl_var *var;
+ let_value *val;
+} let_stmt;
+
+static inline let_stmt *init_let_stmt(decl_var *var, let_value *val) {
+ let_stmt *let = malloc(sizeof(*let));
+ let->var = var;
+ let->val = val;
+ return let;
+}
+
+static inline void free_let_stmt(let_stmt *stmt) {
+ free_decl_var(stmt->var);
+ free_let_value(stmt->val);
+ free(stmt);
+}
+
+typedef struct set_func {
+ token_t type;
+ char *name;
+} set_func;
+
+static inline set_func *init_set_func(token_t type, char *name) {
+ set_func *func = malloc(sizeof(*func));
+ func->type = type;
+ func->name = (char *) strdup((const char *) name);
+ return func;
+}
+
+static inline void free_set_func(set_func *func) {
+ free(func->name);
+ free(func);
+}
+
+typedef struct set_value {
+ set_func *func;
+ decl_vars *vars;
+} set_value;
+
+static inline set_value *init_set_value(set_func *func, decl_vars *vars) {
+ set_value *val = malloc(sizeof(*val));
+ val->func = func;
+ val->vars = vars;
+ return val;
+}
+
+static inline void free_set_value(set_value *val) {
+ free_set_func(val->func);
+ free_decl_vars(val->vars);
+ free(val);
+}
+
+typedef struct set_stmt {
+ impl_var *var;
+ set_value *val;
+} set_stmt;
+
+static inline set_stmt *init_set_stmt(impl_var *var, set_value *val) {
+ set_stmt *set = malloc(sizeof(*set));
+ set->var = var;
+ set->val = val;
+ return set;
+}
+
+static inline void free_set_stmt(set_stmt *set) {
+ free_impl_var(set->var);
+ free_set_value(set->val);
+ free(set);
+}
+
+typedef struct ret_stmt {
+ set_func *func;
+ decl_var *decl;
+} ret_stmt;
+
+static inline ret_stmt *init_ret_stmt(set_func *func, decl_var *decl) {
+ ret_stmt *ret = malloc(sizeof(*ret));
+ ret->func = func;
+ ret->decl = decl;
+ return ret;
+}
+
+static inline void free_ret_stmt(ret_stmt *ret) {
+ free_set_func(ret->func);
+ free_decl_var(ret->decl);
+ free(ret);
+}
+
+typedef struct impl_stmt {
+ token_t type;
+ union {
+ let_stmt *let;
+ set_stmt *set;
+ ret_stmt *ret;
+ void *ptr;
+ } s;
+} impl_stmt;
+
+static inline impl_stmt *init_impl_stmt(token_t type, void *ptr) {
+ impl_stmt *stmt = malloc(sizeof(*stmt));
+ stmt->type = type;
+ stmt->s.ptr = ptr;
+ return stmt;
+}
+
+static inline void free_impl_stmt(impl_stmt *stmt) {
+ switch (stmt->type) {
+ case PSI_T_LET:
+ free_let_stmt(stmt->s.let);
+ break;
+ case PSI_T_SET:
+ free_set_stmt(stmt->s.set);
+ break;
+ case PSI_T_RET:
+ free_ret_stmt(stmt->s.ret);
+ break;
+ }
+ free(stmt);
+}
+
+typedef struct impl_stmts {
+ impl_stmt **stmts;
+ size_t count;
+} impl_stmts;
+
+static inline impl_stmts *init_impl_stmts(impl_stmt *stmt) {
+ impl_stmts *stmts = malloc(sizeof(*stmts));
+ stmts->count = 1;
+ stmts->stmts = malloc(sizeof(*stmts->stmts));
+ stmts->stmts[0] = stmt;
+ return stmts;
+}
+
+static inline impl_stmts *add_impl_stmt(impl_stmts *stmts, impl_stmt *stmt) {
+ stmts->stmts = realloc(stmts->stmts, ++stmts->count * sizeof(*stmts->stmts));
+ stmts->stmts[stmts->count-1] = stmt;
+ return stmts;
+}
+
+static inline void free_impl_stmts(impl_stmts *stmts) {
+ size_t i;
+
+ for (i = 0; i < stmts->count; ++i) {
+ free_impl_stmt(stmts->stmts[i]);
+ }
+ free(stmts->stmts);
+ free(stmts);
+}
+
+typedef struct impl {
+ impl_func *func;
+ impl_stmts *stmts;
+} impl;
+
+static inline impl *init_impl(impl_func *func, impl_stmts *stmts) {
+ impl *i = malloc(sizeof(*i));
+ i->func = func;
+ i->stmts = stmts;
+ return i;
+}
+
+static inline void free_impl(impl *impl) {
+ free_impl_func(impl->func);
+ free_impl_stmts(impl->stmts);
+ free(impl);
+}
+
+typedef struct impls {
+ size_t count;
+ impl **list;
+} impls;
+
+static impls *add_impl(impls *impls, impl *impl) {
+ if (!impls) {
+ impls = calloc(1, sizeof(*impls));
+ }
+ impls->list = realloc(impls->list, ++impls->count * sizeof(*impls->list));
+ impls->list[impls->count-1] = impl;
+ return impls;
+}
+
+static void free_impls(impls *impls) {
+ size_t i;
+
+ for (i = 0; i < impls->count; ++i) {
+ free_impl(impls->list[i]);
+ }
+ free(impls->list);
+ free(impls);
+}
+
+typedef struct PSI_Data {
+ decl_typedefs *defs;
+ decls *decls;
+ impls *impls;
+ char *lib;
+ char *fn;
+} PSI_Data;
+
+static inline void PSI_DataExchange(PSI_Data *dest, PSI_Data *src) {
+ memcpy(dest, src, sizeof(*dest));
+ memset(src, 0, sizeof(*src));
+}
+
+static inline void PSI_DataDtor(PSI_Data *data) {
+ if (data->defs) {
+ free_decl_typedefs(data->defs);
+ }
+ if (data->decls) {
+ free_decls(data->decls);
+ }
+ if (data->impls) {
+ free_impls(data->impls);
+ }
+ if (data->lib) {
+ free(data->lib);
+ }
+ if (data->fn) {
+ free(data->fn);
+ }
+}
+
+typedef struct PSI_Parser {
+ decl_typedefs *defs;
+ decls *decls;
+ impls *impls;
+ char *lib;
+ char *fn;
+ FILE *fp;
+ void *proc;
+ size_t line;
+ token_t num;
+ char *cur, *tok, *lim, *eof, *ctx, *mrk, buf[BSIZE];
+} PSI_Parser;
+
+static inline PSI_Token *PSI_TokenAlloc(PSI_Parser *P) {
+ PSI_Token *T;
+ size_t token_len;
+
+ if (P->cur <= P->tok) {
+ return NULL;
+ }
+
+ token_len = P->cur - P->tok;
+
+ T = malloc(sizeof(*T) + token_len);
+ T->type = P->num;
+ T->line = P->line;
+ T->size = token_len;
+ T->text[token_len] = 0;
+ memcpy(T->text, P->tok, token_len);
+
+ return T;
+}
+
+PSI_Parser *PSI_ParserInit(PSI_Parser *P, const char *filename);
+size_t PSI_ParserFill(PSI_Parser *P, size_t n);
+token_t PSI_ParserScan(PSI_Parser *P);
+void PSI_ParserParse(PSI_Parser *P, PSI_Token *T);
+void PSI_ParserDtor(PSI_Parser *P);
+void PSI_ParserFree(PSI_Parser **P);
+
+#endif
projects / m6w6 / ext-psi / commitdiff
