mirror of
https://github.com/open-goal/jak-project
synced 2026-05-23 06:54:31 -04:00
Tyler Wilding
108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
#include "formatter.h"
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#include "formatter_tree.h"
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#include "common/util/FileUtil.h"
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#include "common/util/string_util.h"
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#include "tree_sitter/api.h"
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#include "third-party/fmt/core.h"
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// Declare the `tree_sitter_opengoal` function, which is
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// implemented by the `tree-sitter-opengoal` library.
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extern "C" {
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extern const TSLanguage* tree_sitter_opengoal();
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}
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std::string align_form(const std::string& form, int alignment_width) {
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const auto lines = str_util::split(form);
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std::string aligned_form = "";
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for (int i = 0; i < lines.size(); i++) {
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aligned_form += str_util::repeat(alignment_width, " ") + lines.at(i);
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if (i != lines.size() - 1) {
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aligned_form += "\n";
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}
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}
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return aligned_form;
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}
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std::string apply_formatting(const FormatterTree::Node& curr_node,
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std::string output,
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int tree_depth = 0) {
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if (!curr_node.token && curr_node.refs.empty()) {
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return output;
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}
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std::string curr_form = "";
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if (curr_node.token) {
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curr_form += curr_node.token.value();
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return curr_form;
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}
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if (!curr_node.metadata.is_root) {
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curr_form += "(";
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}
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for (int i = 0; i < curr_node.refs.size(); i++) {
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const auto& ref = curr_node.refs.at(i);
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// TODO - abstract these into formatting rules
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if (!curr_node.metadata.is_root && curr_node.metadata.multiple_elements_first_line) {
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if (i > 1) {
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// TODO - kinda unsafe
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// Trim the current form before applying a new-line
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curr_form = str_util::rtrim(curr_form) + "\n";
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if (ref.token) {
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curr_form += str_util::repeat(curr_node.refs.at(0).token.value().length() + 2, " ");
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}
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}
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} else if (!curr_node.metadata.is_root) {
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if (i > 0) {
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// Trim the current form before applying a new-line
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curr_form = str_util::rtrim(curr_form) + "\n";
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curr_form += str_util::repeat(tree_depth, " ");
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}
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}
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if (ref.token) {
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curr_form += ref.token.value() + " ";
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} else {
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if (!curr_node.metadata.is_root && curr_node.metadata.multiple_elements_first_line) {
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// align returned form's lines with this forms lines
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// TODO - kinda unsafe
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curr_form += align_form(apply_formatting(ref, "", tree_depth + 1),
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curr_node.refs.at(0).token.value().length() + 2);
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} else {
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curr_form += apply_formatting(ref, "", tree_depth + 1);
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}
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}
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if (curr_node.metadata.is_root && i < curr_node.refs.size() - 1) {
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curr_form += "\n\n";
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}
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}
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if (!curr_node.metadata.is_root) {
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curr_form = str_util::rtrim(curr_form) + ")";
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}
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return curr_form;
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}
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std::optional<std::string> formatter::format_code(const std::string& source) {
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// Create a parser.
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std::shared_ptr<TSParser> parser(ts_parser_new(), TreeSitterParserDeleter());
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// Set the parser's language (JSON in this case).
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ts_parser_set_language(parser.get(), tree_sitter_opengoal());
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// Build a syntax tree based on source code stored in a string.
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std::shared_ptr<TSTree> tree(
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ts_parser_parse_string(parser.get(), NULL, source.c_str(), source.length()),
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TreeSitterTreeDeleter());
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// Get the root node of the syntax tree.
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TSNode root_node = ts_tree_root_node(tree.get());
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if (ts_node_is_null(root_node) || ts_node_has_error(root_node)) {
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return std::nullopt;
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}
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const auto formatting_tree = FormatterTree(source, root_node);
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std::string formatted_code = apply_formatting(formatting_tree.root, "");
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return formatted_code;
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}
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