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lang: ast: implement parsing of true/false/null keyword constants

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This commit is contained in:
max 🍓
2025-09-08 15:56:03 +01:00
parent bf250179da
commit 8ab377b3ab
5 changed files with 46 additions and 0 deletions
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19
lang/ast/const.c Normal file
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@@ -0,0 +1,19 @@
#include "ctx.h"
#include "node.h"
#include <blue/object/string.h>
struct ast_node_type c_true_node_ops = {
.n_state_size = sizeof(struct parser_state),
.n_node_size = sizeof(struct ivy_ast_node),
};
struct ast_node_type c_false_node_ops = {
.n_state_size = sizeof(struct parser_state),
.n_node_size = sizeof(struct ivy_ast_node),
};
struct ast_node_type c_null_node_ops = {
.n_state_size = sizeof(struct parser_state),
.n_node_size = sizeof(struct ivy_ast_node),
};

9
lang/ast/expr/arith.c
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@@ -119,6 +119,15 @@ enum ivy_status arith_push_operand(
case IVY_KW_CONTINUE:
v = ast_node_create(IVY_AST_LOOP_REPEAT);
break;
case IVY_KW_TRUE:
v = ast_node_create(IVY_AST_C_TRUE);
break;
case IVY_KW_FALSE:
v = ast_node_create(IVY_AST_C_FALSE);
break;
case IVY_KW_NULL:
v = ast_node_create(IVY_AST_C_NULL);
break;
default:
return IVY_ERR_BAD_SYNTAX;
}

5
lang/ast/expr/expr.c
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@@ -91,6 +91,11 @@ struct ast_node_type expr_node_ops = {
KW_PARSER(FINALLY, stmt_parse_end),
KW_PARSER(END, stmt_parse_end),
/* keyword constants */
KW_PARSER(TRUE, arith_parse_operand),
KW_PARSER(FALSE, arith_parse_operand),
KW_PARSER(NULL, arith_parse_operand),
/* operator/block keywords */
KW_PARSER(IN, arith_parse_in),
KW_PARSER(IS, arith_parse_operator),

1
lang/ast/expr/expr.h
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@@ -44,6 +44,7 @@ enum expr_component {
EXPR_CMP_OPERATOR,
EXPR_CMP_OPERAND,
EXPR_CMP_MSG,
EXPR_CMP_KEYWORD,
};
struct expr_parser_state {

12
lang/ast/node.c
View File

@@ -42,6 +42,9 @@ extern struct ast_node_type pkg_dynamic_node_ops;
extern struct ast_node_type discard_node_ops;
extern struct ast_node_type try_node_ops;
extern struct ast_node_type try_catch_node_ops;
extern struct ast_node_type c_true_node_ops;
extern struct ast_node_type c_false_node_ops;
extern struct ast_node_type c_null_node_ops;
static const struct ast_node_type *node_ops[] = {
[IVY_AST_UNIT] = &unit_node_ops,
@@ -80,6 +83,9 @@ static const struct ast_node_type *node_ops[] = {
[IVY_AST_DISCARD] = &discard_node_ops,
[IVY_AST_TRY] = &try_node_ops,
[IVY_AST_TRY_CATCH] = &try_catch_node_ops,
[IVY_AST_C_TRUE] = &c_true_node_ops,
[IVY_AST_C_FALSE] = &c_false_node_ops,
[IVY_AST_C_NULL] = &c_null_node_ops,
};
static const size_t nr_node_ops = sizeof node_ops / sizeof node_ops[0];
@@ -129,6 +135,9 @@ enum token_expr_type get_token_expr_type(struct ivy_token *tok)
case IVY_KW_CONTINUE:
case IVY_KW_TRY:
case IVY_KW_THROW:
case IVY_KW_TRUE:
case IVY_KW_FALSE:
case IVY_KW_NULL:
return TOK_EXPR_BEGIN;
default:
op = ivy_operator_get_by_token(tok->t_keyword);
@@ -379,6 +388,9 @@ const char *ivy_ast_node_type_to_string(enum ivy_ast_node_type v)
ENUM_STR(IVY_AST_TRY);
ENUM_STR(IVY_AST_TRY_CATCH);
ENUM_STR(IVY_AST_TYPE_COUNT);
ENUM_STR(IVY_AST_C_TRUE);
ENUM_STR(IVY_AST_C_FALSE);
ENUM_STR(IVY_AST_C_NULL);
default:
return "";
}