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frontend: repl: add show-lex and show-ast command options

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This commit is contained in:
max 🍓
2024-12-06 20:24:50 +00:00
parent 175e191aa6
commit bd377b00f4
1 changed files with 25 additions and 13 deletions
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38
frontend/cmd/repl.c
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@@ -9,7 +9,8 @@
#include <stdbool.h>
enum {
OPT_LEX_ONLY = 0x1000u,
OPT_SHOW_LEX_TOKENS = 100,
OPT_SHOW_AST_NODES,
};
static void skip_line(struct ivy_lexer *lex)
@@ -28,8 +29,10 @@ static void skip_line(struct ivy_lexer *lex)
int repl(const b_command *cmd, const b_arglist *args, const b_array *_)
{
bool lex_only
= b_arglist_get_count(args, OPT_LEX_ONLY, B_COMMAND_INVALID_ID) > 0;
bool show_lex
= b_arglist_get_count(args, OPT_SHOW_LEX_TOKENS, B_COMMAND_INVALID_ID) > 0;
bool show_ast
= b_arglist_get_count(args, OPT_SHOW_AST_NODES, B_COMMAND_INVALID_ID) > 0;
struct line_ed *ed = line_ed_create();
line_ed_set_flags(ed, LINE_ED_REMOVE_CONTINUATIONS);
@@ -66,11 +69,8 @@ int repl(const b_command *cmd, const b_arglist *args, const b_array *_)
continue;
}
print_lex_token(tok);
if (lex_only) {
ivy_token_destroy(tok);
continue;
if (show_lex) {
print_lex_token(tok);
}
status = ivy_parser_push_token(parser, tok);
@@ -87,7 +87,11 @@ int repl(const b_command *cmd, const b_arglist *args, const b_array *_)
}
struct ivy_ast_node *root = ivy_parser_root_node(parser);
ivy_ast_node_print(root);
if (show_ast) {
struct ivy_ast_node_iterator it = {0};
ivy_ast_node_iterate(root, &it, print_ast_node);
}
}
ivy_parser_destroy(parser);
@@ -104,12 +108,20 @@ B_COMMAND(CMD_REPL, CMD_ROOT)
B_COMMAND_HELP_OPTION();
B_COMMAND_FUNCTION(repl);
B_COMMAND_OPTION(OPT_LEX_ONLY)
B_COMMAND_OPTION(OPT_SHOW_LEX_TOKENS)
{
B_OPTION_LONG_NAME("lex-only");
B_OPTION_SHORT_NAME('L');
B_OPTION_LONG_NAME("show-lex");
B_OPTION_SHORT_NAME('l');
B_OPTION_DESC(
"print the lexical tokens generated by the user "
"print the lexical tokens generated from the input.");
}
B_COMMAND_OPTION(OPT_SHOW_AST_NODES)
{
B_OPTION_LONG_NAME("show-ast");
B_OPTION_SHORT_NAME('a');
B_OPTION_DESC(
"print the abstract syntax tree generated from the "
"input.");
}
}