--- /dev/null
+%include {
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+ static void syntax_error(const char *fn, size_t ln, const char *msg, ...) {
+ fprintf(stderr, "WARNING: Syntax error on line %zu in '%s'%s", ln, fn, msg ? ": ": "\n");
+ if (msg) {
+ va_list argv;
+
+ va_start(argv, msg);
+ vfprintf(stderr, msg, argv);
+ va_end(argv);
+ }
+ }
+}
+
+%name PSI_ParserProc
+%token_prefix PSI_T_
+%token_type {PSI_Token *}
+%token_destructor {free($$);}
+%extra_argument {PSI_Lexer *L}
+/* TOKEN is defined inside syntax_error */
+%syntax_error {
+ syntax_error(L->fn, L->line, "Unexpected token '%s'.\n", TOKEN->text);
+}
+file ::= blocks.
+
+blocks ::= block.
+blocks ::= blocks block.
+
+block ::= COMMENT.
+
+block ::= LIB(T) QUOTED_STRING(libname) EOS. {
+ if (L->lib) {
+ syntax_error(L->fn, T->line, "Extra 'lib %s' statement has no effect.\n", libname->text);
+ } else {
+ L->lib = strndup(libname->text + 1, libname->size - 2);
+ }
+ free(libname);
+ free(T);
+}
+
+block ::= decl(decl). {
+ L->decls = add_decl(L->decls, decl);
+}
+block ::= impl(impl). {
+ L->impls = add_impl(L->impls, impl);
+}
+block ::= decl_typedef(def). {
+ L->defs = add_decl_typedef(L->defs, def);
+}
+
+%type decl_typedef {decl_typedef*}
+decl_typedef(def) ::= TYPEDEF NAME(ALIAS) decl_type(type) EOS. {
+ def = init_decl_typedef(ALIAS->text, type);
+ free(ALIAS);
+}
+
+%type decl {decl*}
+decl(decl) ::= decl_abi(abi) decl_arg(func) LPAREN decl_args(args) RPAREN EOS. {
+ decl = init_decl(abi, func, args);
+}
+
+%type decl_abi {decl_abi*}
+decl_abi(abi) ::= NAME(T). {
+ abi = init_decl_abi(T->text);
+}
+
+%type decl_var {decl_var*}
+decl_var(var) ::= NAME(T). {
+ var = init_decl_var(T->text, 0);
+ free(T);
+}
+decl_var(var) ::= pointers(p) NAME(T). {
+ var = init_decl_var(T->text, p);
+ free(T);
+}
+
+%type decl_vars {decl_vars*}
+decl_vars(vars) ::= decl_var(var). {
+ vars = init_decl_vars(var);
+}
+decl_vars(vars) ::= decl_vars(vars_) COMMA decl_var(var). {
+ vars = add_decl_var(vars_, var);
+}
+
+%type decl_arg {decl_arg*}
+decl_arg(arg) ::= decl_type(type) decl_var(var). {
+ arg = init_decl_arg(type, var);
+}
+
+%type decl_args {decl_args*}
+decl_args(args) ::= decl_arg(arg). {
+ args = init_decl_args(arg);
+}
+decl_args(args) ::= decl_args(args_) COMMA decl_arg(arg). {
+ args = add_decl_arg(args_, arg);
+}
+
+%type decl_type {decl_type*}
+decl_type(type_) ::= VOID(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= INT(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= FLOAT(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= DOUBLE(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= SINT8(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= UINT8(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= SINT16(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= UINT16(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= SINT32(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= UINT32(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= SINT64(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= UINT64(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+decl_type(type_) ::= NAME(T). {
+ type_ = init_decl_type(T->type, T->text);
+ free(T);
+}
+
+%type impl {impl*}
+impl(impl) ::= impl_func(func) LBRACE impl_stmts(stmts) RBRACE. {
+ impl = init_impl(func, stmts);
+}
+
+%type impl_func {impl_func*}
+impl_func(func) ::= FUNCTION NSNAME(NAME) LPAREN impl_args(args) RPAREN COLON impl_type(type). {
+ func = init_impl_func(NAME->text, args, type);
+ free(NAME);
+}
+impl_func(func) ::= FUNCTION NSNAME(NAME) LPAREN RPAREN COLON impl_type(type). {
+ func = init_impl_func(NAME->text, NULL, type);
+ free(NAME);
+}
+
+%type impl_def_val {impl_def_val*}
+impl_def_val(def) ::= NULL. {
+ /* FIXME */
+ def = init_impl_def_val();
+}
+impl_def_val(def) ::= number. {
+ /* FIXME */
+ def = init_impl_def_val();
+}
+
+%type impl_var {impl_var*}
+impl_var(var) ::= DOLLAR NAME(T). {
+ var = init_impl_var(T->text, 0);
+ free(T);
+}
+impl_var(var) ::= REFERENCE DOLLAR NAME(T). {
+ var = init_impl_var(T->text, 1);
+ free(T);
+}
+
+%type impl_arg {impl_arg*}
+impl_arg(arg) ::= impl_type(type) impl_var(var). {
+ arg = init_impl_arg(type, var, NULL);
+}
+impl_arg(arg) ::= impl_type(type) impl_var(var) EQUALS impl_def_val(def). {
+ arg = init_impl_arg(type, var, def);
+}
+
+%type impl_args {impl_args*}
+impl_args(args) ::= impl_arg(arg). {
+ args = init_impl_args(arg);
+}
+impl_args(args) ::= impl_args(args_) COMMA impl_arg(arg). {
+ args = add_impl_arg(args_, arg);
+}
+
+%type impl_stmts {impl_stmts*}
+impl_stmts(stmts) ::= impl_stmt(stmt). {
+ stmts = init_impl_stmts(stmt);
+}
+impl_stmts(stmts) ::= impl_stmts(stmts_) impl_stmt(stmt). {
+ stmts = add_impl_stmt(stmts_, stmt);
+}
+
+%type impl_stmt {impl_stmt*}
+impl_stmt(stmt) ::= let_stmt(let). {
+ stmt = init_impl_stmt(PSI_T_LET, let);
+}
+impl_stmt(stmt) ::= set_stmt(set). {
+ stmt = init_impl_stmt(PSI_T_SET, set);
+}
+impl_stmt(stmt) ::= ret_stmt(ret). {
+ stmt = init_impl_stmt(PSI_T_RET, ret);
+}
+
+%type let_stmt {let_stmt*}
+let_stmt(let) ::= LET decl_var(var) EQUALS let_value(val) EOS. {
+ let = init_let_stmt(var, val);
+}
+
+%type let_value {let_value*}
+let_value(val) ::= let_func(func) LPAREN impl_var(var) RPAREN. {
+ val = init_let_value(func, var, 0);
+}
+let_value(val) ::= REFERENCE NULL. {
+ val = init_let_value(NULL, NULL, 1);
+}
+let_value(val) ::= NULL. {
+ val = init_let_value(NULL, NULL, 0);
+}
+
+%type let_func {let_func*}
+let_func(func) ::= STRVAL(T). {
+ func = init_let_func(T->type, T->text);
+ free(T);
+}
+let_func(func) ::= INTVAL(T). {
+ func = init_let_func(T->type, T->text);
+ free(T);
+}
+let_func(func) ::= FLOATVAL(T). {
+ func = init_let_func(T->type, T->text);
+ free(T);
+}
+let_func(func) ::= BOOLVAL(T). {
+ func = init_let_func(T->type, T->text);
+ free(T);
+}
+
+%type set_stmt {set_stmt*}
+set_stmt(set) ::= SET impl_var(var) EQUALS set_value(val) EOS. {
+ set = init_set_stmt(var, val);
+}
+
+%type set_value {set_value*}
+set_value(val) ::= set_func(func) LPAREN decl_vars(vars) RPAREN. {
+ val = init_set_value(func, vars);
+}
+
+%type set_func {set_func*}
+set_func(func) ::= TO_STRING(T). {
+ func = init_set_func(T->type, T->text);
+ free(T);
+}
+set_func(func) ::= TO_INT(T). {
+ func = init_set_func(T->type, T->text);
+ free(T);
+}
+set_func(func) ::= TO_FLOAT(T). {
+ func = init_set_func(T->type, T->text);
+ free(T);
+}
+set_func(func) ::= TO_BOOL(T). {
+ func = init_set_func(T->type, T->text);
+ free(T);
+}
+
+%type ret_stmt {ret_stmt*}
+ret_stmt(ret) ::= RET set_func(func) LPAREN decl_var(var) RPAREN EOS. {
+ ret = init_ret_stmt(func, var);
+}
+
+%type impl_type {impl_type*}
+impl_type(type_) ::= VOID(T). {
+ type_ = init_impl_type(T->type, T->text);
+ free(T);
+}
+impl_type(type_) ::= MIXED(T). {
+ type_ = init_impl_type(T->type, T->text);
+ free(T);
+}
+impl_type(type_) ::= BOOL(T). {
+ type_ = init_impl_type(T->type, T->text);
+ free(T);
+}
+impl_type(type_) ::= INT(T). {
+ type_ = init_impl_type(T->type, T->text);
+ free(T);
+}
+impl_type(type_) ::= FLOAT(T). {
+ type_ = init_impl_type(T->type, T->text);
+ free(T);
+}
+impl_type(type_) ::= STRING(T). {
+ type_ = init_impl_type(T->type, T->text);
+ free(T);
+}
+impl_type(type_) ::= ARRAY(T). {
+ type_ = init_impl_type(T->type, T->text);
+ free(T);
+}
+
+digits ::= DIGIT.
+digits ::= digits DIGIT.
+decimals ::= digits DOT digits.
+decimals ::= DOT digits.
+decimals ::= digits DOT.
+number ::= digits.
+number ::= PLUS digits.
+number ::= MINUS digits.
+number ::= decimals.
+number ::= MINUS decimals.
+number ::= PLUS decimals.
+
+%type pointers {unsigned}
+pointers(p) ::= POINTER. {++p;}
+pointers(p) ::= pointers(P) POINTER. {p = ++P;}
projects / m6w6 / ext-psi / blobdiff