Method parse_script

compat/fake_gdscript.cpp:352–678

}

Error FakeGDScript::parse_script() {
	using GT = GlobalToken;

	FAKEGDSCRIPT_FAIL_COND_V_MSG(script_state.bytecode_version == -1, ERR_INVALID_DATA, "Bytecode version is invalid");
	Vector<StringName> &identifiers = script_state.identifiers;
	Vector<Variant> &constants = script_state.constants;
	Vector<uint32_t> &tokens = script_state.tokens;
	int variant_ver_major = decomp->get_variant_ver_major();

	// reserved words can be used as class members in GDScript. Hooray.
	auto is_not_actually_reserved_word = [&](int i) {
		return (decomp->check_prev_token(i, tokens, GT::G_TK_PERIOD) ||
				(script_state.bytecode_version < GDScriptDecomp::GDSCRIPT_2_0_VERSION &&
						(decomp->check_prev_token(i, tokens, GT::G_TK_PR_FUNCTION) ||
								decomp->is_token_func_call(i, tokens))));
	};
	bool func_used = false;
	bool class_used = false;
	bool var_used = false;
	bool const_used = false;
	bool extends_used = false;
	bool class_name_used = false;
	export_vars.clear();
	int indent = 0;
	uint32_t prev_line = 1;
	uint32_t prev_line_start_column = 1;
	GT prev_token = GT::G_TK_NEWLINE;
	int tab_size = 1;

	// We should only fail when there's something that the decompiler should have already caught; otherwise we'll just warn.
#define FAKEGDSCRIPT_PARSE_FAIL_COND_V_MSG(cond, msg)                                   \
	if (unlikely(cond)) {                                                               \
		error_message = "Failed to parse script: Line " + itos(prev_line) + ": " + msg; \
		return ERR_PARSE_ERROR;                                                         \
	}

	auto handle_newline = [&](int i, GlobalToken curr_token) {
		auto curr_line = script_state.get_token_line(i);
		auto curr_column = script_state.get_token_column(i);
		if (curr_line <= prev_line) {
			curr_line = prev_line + 1; // force new line
		}
		while (curr_line > prev_line) {
			prev_line++;
		}
		if (curr_token == GT::G_TK_NEWLINE) {
			indent = tokens[i] >> GDScriptDecomp::TOKEN_BITS;
		} else if (script_state.bytecode_version >= GDScriptDecomp::GDSCRIPT_2_0_VERSION) {
			prev_token = GT::G_TK_NEWLINE;
			int col_diff = (int)curr_column - (int)prev_line_start_column;
			if (col_diff != 0) {
				int tabs = col_diff / tab_size;
				if (tabs == 0) {
					indent += (col_diff > 0 ? 1 : -1);
				} else {
					indent += tabs;
				}
			}