forked from mirrors/jj
95 lines
3.2 KiB
Rust
95 lines
3.2 KiB
Rust
// Copyright 2024 The Jujutsu Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use jj_cli::cli_util::CliRunner;
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use jj_cli::operation_templater::OperationTemplateBuildFnTable;
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use jj_cli::operation_templater::OperationTemplateLanguage;
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use jj_cli::operation_templater::OperationTemplateLanguageExtension;
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use jj_cli::template_builder::TemplateLanguage;
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use jj_cli::template_parser;
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use jj_cli::template_parser::TemplateParseError;
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use jj_cli::templater::TemplatePropertyExt as _;
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use jj_lib::extensions_map::ExtensionsMap;
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use jj_lib::object_id::ObjectId;
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use jj_lib::op_store::OperationId;
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use jj_lib::operation::Operation;
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struct HexCounter;
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fn num_digits_in_id(id: &OperationId) -> i64 {
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let mut count = 0;
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for ch in id.hex().chars() {
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if ch.is_ascii_digit() {
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count += 1;
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}
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}
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count
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}
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fn num_char_in_id(operation: Operation, ch_match: char) -> i64 {
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let mut count = 0;
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for ch in operation.id().hex().chars() {
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if ch == ch_match {
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count += 1;
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}
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}
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count
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}
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impl OperationTemplateLanguageExtension for HexCounter {
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fn build_fn_table(&self) -> OperationTemplateBuildFnTable {
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type L = OperationTemplateLanguage;
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let mut table = OperationTemplateBuildFnTable::empty();
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table.operation_methods.insert(
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"num_digits_in_id",
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|_language, _diagnostics, _build_context, property, call| {
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call.expect_no_arguments()?;
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Ok(L::wrap_integer(
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property.map(|operation| num_digits_in_id(operation.id())),
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))
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},
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);
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table.operation_methods.insert(
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"num_char_in_id",
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|_language, _diagnostics, _build_context, property, call| {
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let [string_arg] = call.expect_exact_arguments()?;
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let char_arg =
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template_parser::expect_string_literal_with(string_arg, |string, span| {
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let chars: Vec<_> = string.chars().collect();
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match chars[..] {
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[ch] => Ok(ch),
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_ => Err(TemplateParseError::expression(
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"Expected singular character argument",
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span,
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)),
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}
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})?;
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Ok(L::wrap_integer(
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property.map(move |operation| num_char_in_id(operation, char_arg)),
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))
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},
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);
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table
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}
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fn build_cache_extensions(&self, _extensions: &mut ExtensionsMap) {}
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}
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fn main() -> std::process::ExitCode {
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CliRunner::init()
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.add_operation_template_extension(Box::new(HexCounter))
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.run()
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}
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