mirror of
https://github.com/denoland/deno.git
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e5beb800c9
This commit moves implementation of "JsRuntimeInspector" to "deno_core" crate. To achieve that following changes were made: * "Worker" and "WebWorker" no longer own instance of "JsRuntimeInspector", instead it is now owned by "deno_core::JsRuntime". * Consequently polling of inspector is no longer done in "Worker"/"WebWorker", instead it's done in "deno_core::JsRuntime::poll_event_loop". * "deno_core::JsRuntime::poll_event_loop" and "deno_core::JsRuntime::run_event_loop", now accept "wait_for_inspector" boolean that tells if event loop should still be "pending" if there are active inspector sessions - this change fixes the problem that inspector disconnects from the frontend and process exits once the code has stopped executing.
662 lines
18 KiB
Rust
662 lines
18 KiB
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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use crate::ast;
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use crate::ast::TokenOrComment;
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use crate::colors;
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use crate::flags::Flags;
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use crate::fs_util::collect_files;
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use crate::media_type::MediaType;
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use crate::module_graph::TypeLib;
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use crate::program_state::ProgramState;
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use crate::source_maps::SourceMapGetter;
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use deno_core::error::AnyError;
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use deno_core::serde_json;
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use deno_core::serde_json::json;
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use deno_core::url::Url;
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use deno_core::LocalInspectorSession;
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use deno_runtime::permissions::Permissions;
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use regex::Regex;
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use serde::Deserialize;
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use serde::Serialize;
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use sourcemap::SourceMap;
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use std::fs;
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use std::path::PathBuf;
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use swc_common::Span;
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use uuid::Uuid;
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pub struct CoverageCollector {
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pub dir: PathBuf,
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session: LocalInspectorSession,
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}
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impl CoverageCollector {
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pub fn new(dir: PathBuf, session: LocalInspectorSession) -> Self {
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Self { dir, session }
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}
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pub async fn start_collecting(&mut self) -> Result<(), AnyError> {
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self.session.post_message("Debugger.enable", None).await?;
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self.session.post_message("Profiler.enable", None).await?;
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self
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.session
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.post_message(
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"Profiler.startPreciseCoverage",
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Some(json!({"callCount": true, "detailed": true})),
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)
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.await?;
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Ok(())
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}
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pub async fn stop_collecting(&mut self) -> Result<(), AnyError> {
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let result = self
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.session
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.post_message("Profiler.takePreciseCoverage", None)
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.await?;
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let take_coverage_result: TakePreciseCoverageResult =
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serde_json::from_value(result)?;
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fs::create_dir_all(&self.dir)?;
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let script_coverages = take_coverage_result.result;
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for script_coverage in script_coverages {
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let filename = format!("{}.json", Uuid::new_v4());
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let json = serde_json::to_string(&script_coverage)?;
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fs::write(self.dir.join(filename), &json)?;
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}
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self.session.post_message("Profiler.disable", None).await?;
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self.session.post_message("Debugger.disable", None).await?;
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Ok(())
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}
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}
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// TODO(caspervonb) all of these structs can and should be made private, possibly moved to
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// inspector::protocol.
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#[derive(Debug, Serialize, Deserialize, Clone)]
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#[serde(rename_all = "camelCase")]
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pub struct CoverageRange {
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pub start_offset: usize,
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pub end_offset: usize,
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pub count: usize,
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}
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#[derive(Debug, Serialize, Deserialize, Clone)]
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#[serde(rename_all = "camelCase")]
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pub struct FunctionCoverage {
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pub function_name: String,
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pub ranges: Vec<CoverageRange>,
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pub is_block_coverage: bool,
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}
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#[derive(Debug, Serialize, Deserialize, Clone)]
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#[serde(rename_all = "camelCase")]
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pub struct ScriptCoverage {
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pub script_id: String,
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pub url: String,
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pub functions: Vec<FunctionCoverage>,
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}
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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struct TakePreciseCoverageResult {
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result: Vec<ScriptCoverage>,
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}
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#[derive(Debug, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct GetScriptSourceResult {
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pub script_source: String,
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pub bytecode: Option<String>,
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}
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pub enum CoverageReporterKind {
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Pretty,
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Lcov,
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}
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fn create_reporter(
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kind: CoverageReporterKind,
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) -> Box<dyn CoverageReporter + Send> {
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match kind {
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CoverageReporterKind::Lcov => Box::new(LcovCoverageReporter::new()),
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CoverageReporterKind::Pretty => Box::new(PrettyCoverageReporter::new()),
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}
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}
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pub trait CoverageReporter {
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fn visit_coverage(
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&mut self,
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script_coverage: &ScriptCoverage,
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script_source: &str,
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maybe_source_map: Option<Vec<u8>>,
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maybe_original_source: Option<String>,
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);
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fn done(&mut self);
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}
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pub struct LcovCoverageReporter {}
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impl LcovCoverageReporter {
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pub fn new() -> LcovCoverageReporter {
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LcovCoverageReporter {}
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}
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}
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impl CoverageReporter for LcovCoverageReporter {
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fn visit_coverage(
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&mut self,
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script_coverage: &ScriptCoverage,
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script_source: &str,
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maybe_source_map: Option<Vec<u8>>,
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_maybe_original_source: Option<String>,
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) {
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// TODO(caspervonb) cleanup and reduce duplication between reporters, pre-compute line coverage
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// elsewhere.
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let maybe_source_map = maybe_source_map
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.map(|source_map| SourceMap::from_slice(&source_map).unwrap());
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let url = Url::parse(&script_coverage.url).unwrap();
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let file_path = url.to_file_path().unwrap();
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println!("SF:{}", file_path.to_str().unwrap());
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let mut functions_found = 0;
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for function in &script_coverage.functions {
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if function.function_name.is_empty() {
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continue;
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}
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let source_line = script_source[0..function.ranges[0].start_offset]
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.split('\n')
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.count();
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let line_index = if let Some(source_map) = maybe_source_map.as_ref() {
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source_map
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.tokens()
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.find(|token| token.get_dst_line() as usize == source_line)
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.map(|token| token.get_src_line() as usize)
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.unwrap_or(0)
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} else {
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source_line
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};
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let function_name = &function.function_name;
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println!("FN:{},{}", line_index + 1, function_name);
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functions_found += 1;
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}
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let mut functions_hit = 0;
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for function in &script_coverage.functions {
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if function.function_name.is_empty() {
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continue;
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}
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let execution_count = function.ranges[0].count;
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let function_name = &function.function_name;
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println!("FNDA:{},{}", execution_count, function_name);
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if execution_count != 0 {
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functions_hit += 1;
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}
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}
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println!("FNF:{}", functions_found);
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println!("FNH:{}", functions_hit);
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let mut branches_found = 0;
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let mut branches_hit = 0;
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for (block_number, function) in script_coverage.functions.iter().enumerate()
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{
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let block_hits = function.ranges[0].count;
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for (branch_number, range) in function.ranges[1..].iter().enumerate() {
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let source_line =
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script_source[0..range.start_offset].split('\n').count();
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let line_index = if let Some(source_map) = maybe_source_map.as_ref() {
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source_map
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.tokens()
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.find(|token| token.get_dst_line() as usize == source_line)
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.map(|token| token.get_src_line() as usize)
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.unwrap_or(0)
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} else {
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source_line
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};
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// From https://manpages.debian.org/unstable/lcov/geninfo.1.en.html:
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//
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// Block number and branch number are gcc internal IDs for the branch. Taken is either '-'
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// if the basic block containing the branch was never executed or a number indicating how
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// often that branch was taken.
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//
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// However with the data we get from v8 coverage profiles it seems we can't actually hit
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// this as appears it won't consider any nested branches it hasn't seen but its here for
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// the sake of accuracy.
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let taken = if block_hits > 0 {
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range.count.to_string()
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} else {
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"-".to_string()
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};
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println!(
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"BRDA:{},{},{},{}",
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line_index + 1,
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block_number,
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branch_number,
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taken
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);
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branches_found += 1;
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if range.count > 0 {
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branches_hit += 1;
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}
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}
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}
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println!("BRF:{}", branches_found);
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println!("BRH:{}", branches_hit);
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let lines = script_source.split('\n').collect::<Vec<_>>();
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let line_offsets = {
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let mut offsets: Vec<(usize, usize)> = Vec::new();
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let mut index = 0;
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for line in &lines {
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offsets.push((index, index + line.len() + 1));
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index += line.len() + 1;
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}
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offsets
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};
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let line_counts = line_offsets
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.iter()
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.map(|(line_start_offset, line_end_offset)| {
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let mut count = 0;
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// Count the hits of ranges that include the entire line which will always be at-least one
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// as long as the code has been evaluated.
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for function in &script_coverage.functions {
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for range in &function.ranges {
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if range.start_offset <= *line_start_offset
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&& range.end_offset >= *line_end_offset
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{
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count += range.count;
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}
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}
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}
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// We reset the count if any block with a zero count overlaps with the line range.
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for function in &script_coverage.functions {
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for range in &function.ranges {
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if range.count > 0 {
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continue;
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}
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let overlaps = std::cmp::max(line_end_offset, &range.end_offset)
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- std::cmp::min(line_start_offset, &range.start_offset)
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< (line_end_offset - line_start_offset)
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+ (range.end_offset - range.start_offset);
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if overlaps {
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count = 0;
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}
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}
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}
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count
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})
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.collect::<Vec<usize>>();
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let found_lines = if let Some(source_map) = maybe_source_map.as_ref() {
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let mut found_lines = line_counts
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.iter()
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.enumerate()
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.map(|(index, count)| {
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source_map
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.tokens()
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.filter(move |token| token.get_dst_line() as usize == index)
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.map(move |token| (token.get_src_line() as usize, *count))
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})
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.flatten()
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.collect::<Vec<(usize, usize)>>();
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found_lines.sort_unstable_by_key(|(index, _)| *index);
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found_lines.dedup_by_key(|(index, _)| *index);
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found_lines
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} else {
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line_counts
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.iter()
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.enumerate()
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.map(|(index, count)| (index, *count))
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.collect::<Vec<(usize, usize)>>()
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};
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for (index, count) in &found_lines {
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println!("DA:{},{}", index + 1, count);
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}
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let lines_hit = found_lines.iter().filter(|(_, count)| *count != 0).count();
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println!("LH:{}", lines_hit);
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let lines_found = found_lines.len();
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println!("LF:{}", lines_found);
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println!("end_of_record");
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}
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fn done(&mut self) {}
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}
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pub struct PrettyCoverageReporter {}
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impl PrettyCoverageReporter {
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pub fn new() -> PrettyCoverageReporter {
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PrettyCoverageReporter {}
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}
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}
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impl CoverageReporter for PrettyCoverageReporter {
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fn visit_coverage(
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&mut self,
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script_coverage: &ScriptCoverage,
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script_source: &str,
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maybe_source_map: Option<Vec<u8>>,
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maybe_original_source: Option<String>,
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) {
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let maybe_source_map = maybe_source_map
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.map(|source_map| SourceMap::from_slice(&source_map).unwrap());
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let mut ignored_spans: Vec<Span> = Vec::new();
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for item in ast::lex("", script_source, &MediaType::JavaScript) {
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if let TokenOrComment::Token(_) = item.inner {
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continue;
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}
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ignored_spans.push(item.span);
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}
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let lines = script_source.split('\n').collect::<Vec<_>>();
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let line_offsets = {
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let mut offsets: Vec<(usize, usize)> = Vec::new();
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let mut index = 0;
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for line in &lines {
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offsets.push((index, index + line.len() + 1));
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index += line.len() + 1;
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}
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offsets
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};
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// TODO(caspervonb): collect uncovered ranges on the lines so that we can highlight specific
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// parts of a line in color (word diff style) instead of the entire line.
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let line_counts = line_offsets
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.iter()
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.enumerate()
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.map(|(index, (line_start_offset, line_end_offset))| {
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let ignore = ignored_spans.iter().any(|span| {
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(span.lo.0 as usize) <= *line_start_offset
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&& (span.hi.0 as usize) >= *line_end_offset
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});
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if ignore {
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return (index, 1);
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}
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let mut count = 0;
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// Count the hits of ranges that include the entire line which will always be at-least one
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// as long as the code has been evaluated.
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for function in &script_coverage.functions {
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for range in &function.ranges {
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if range.start_offset <= *line_start_offset
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&& range.end_offset >= *line_end_offset
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{
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count += range.count;
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}
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}
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}
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// We reset the count if any block with a zero count overlaps with the line range.
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for function in &script_coverage.functions {
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for range in &function.ranges {
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if range.count > 0 {
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continue;
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}
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let overlaps = std::cmp::max(line_end_offset, &range.end_offset)
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- std::cmp::min(line_start_offset, &range.start_offset)
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< (line_end_offset - line_start_offset)
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+ (range.end_offset - range.start_offset);
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if overlaps {
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count = 0;
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}
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}
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}
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(index, count)
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})
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.collect::<Vec<(usize, usize)>>();
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let lines = if let Some(original_source) = maybe_original_source.as_ref() {
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original_source.split('\n').collect::<Vec<_>>()
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} else {
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lines
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};
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let line_counts = if let Some(source_map) = maybe_source_map.as_ref() {
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let mut line_counts = line_counts
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.iter()
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.map(|(index, count)| {
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source_map
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.tokens()
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.filter(move |token| token.get_dst_line() as usize == *index)
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.map(move |token| (token.get_src_line() as usize, *count))
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})
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.flatten()
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.collect::<Vec<(usize, usize)>>();
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line_counts.sort_unstable_by_key(|(index, _)| *index);
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line_counts.dedup_by_key(|(index, _)| *index);
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line_counts
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} else {
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line_counts
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};
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print!("cover {} ... ", script_coverage.url);
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let hit_lines = line_counts
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.iter()
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.filter(|(_, count)| *count != 0)
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.map(|(index, _)| *index);
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let missed_lines = line_counts
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.iter()
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.filter(|(_, count)| *count == 0)
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.map(|(index, _)| *index);
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let lines_found = line_counts.len();
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let lines_hit = hit_lines.count();
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let line_ratio = lines_hit as f32 / lines_found as f32;
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let line_coverage =
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format!("{:.3}% ({}/{})", line_ratio * 100.0, lines_hit, lines_found,);
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if line_ratio >= 0.9 {
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println!("{}", colors::green(&line_coverage));
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} else if line_ratio >= 0.75 {
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println!("{}", colors::yellow(&line_coverage));
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} else {
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println!("{}", colors::red(&line_coverage));
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}
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let mut last_line = None;
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for line_index in missed_lines {
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const WIDTH: usize = 4;
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const SEPERATOR: &str = "|";
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// Put a horizontal separator between disjoint runs of lines
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if let Some(last_line) = last_line {
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if last_line + 1 != line_index {
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let dash = colors::gray("-".repeat(WIDTH + 1));
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println!("{}{}{}", dash, colors::gray(SEPERATOR), dash);
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}
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}
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println!(
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"{:width$} {} {}",
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line_index + 1,
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colors::gray(SEPERATOR),
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colors::red(&lines[line_index]),
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width = WIDTH
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);
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last_line = Some(line_index);
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}
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}
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fn done(&mut self) {}
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}
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|
|
fn collect_coverages(
|
|
files: Vec<PathBuf>,
|
|
ignore: Vec<PathBuf>,
|
|
) -> Result<Vec<ScriptCoverage>, AnyError> {
|
|
let mut coverages: Vec<ScriptCoverage> = Vec::new();
|
|
let file_paths = collect_files(&files, &ignore, |file_path| {
|
|
file_path.extension().map_or(false, |ext| ext == "json")
|
|
})?;
|
|
|
|
for file_path in file_paths {
|
|
let json = fs::read_to_string(file_path.as_path())?;
|
|
let new_coverage: ScriptCoverage = serde_json::from_str(&json)?;
|
|
|
|
let existing_coverage =
|
|
coverages.iter_mut().find(|x| x.url == new_coverage.url);
|
|
|
|
if let Some(existing_coverage) = existing_coverage {
|
|
for new_function in new_coverage.functions {
|
|
let existing_function = existing_coverage
|
|
.functions
|
|
.iter_mut()
|
|
.find(|x| x.function_name == new_function.function_name);
|
|
|
|
if let Some(existing_function) = existing_function {
|
|
for new_range in new_function.ranges {
|
|
let existing_range =
|
|
existing_function.ranges.iter_mut().find(|x| {
|
|
x.start_offset == new_range.start_offset
|
|
&& x.end_offset == new_range.end_offset
|
|
});
|
|
|
|
if let Some(existing_range) = existing_range {
|
|
existing_range.count += new_range.count;
|
|
} else {
|
|
existing_function.ranges.push(new_range);
|
|
}
|
|
}
|
|
} else {
|
|
existing_coverage.functions.push(new_function);
|
|
}
|
|
}
|
|
} else {
|
|
coverages.push(new_coverage);
|
|
}
|
|
}
|
|
|
|
coverages.sort_by_key(|k| k.url.clone());
|
|
|
|
Ok(coverages)
|
|
}
|
|
|
|
fn filter_coverages(
|
|
coverages: Vec<ScriptCoverage>,
|
|
include: Vec<String>,
|
|
exclude: Vec<String>,
|
|
) -> Vec<ScriptCoverage> {
|
|
let include: Vec<Regex> =
|
|
include.iter().map(|e| Regex::new(e).unwrap()).collect();
|
|
|
|
let exclude: Vec<Regex> =
|
|
exclude.iter().map(|e| Regex::new(e).unwrap()).collect();
|
|
|
|
coverages
|
|
.into_iter()
|
|
.filter(|e| {
|
|
let is_internal = e.url.starts_with("deno:")
|
|
|| e.url.ends_with("__anonymous__")
|
|
|| e.url.ends_with("$deno$test.ts");
|
|
|
|
let is_included = include.iter().any(|p| p.is_match(&e.url));
|
|
let is_excluded = exclude.iter().any(|p| p.is_match(&e.url));
|
|
|
|
(include.is_empty() || is_included) && !is_excluded && !is_internal
|
|
})
|
|
.collect::<Vec<ScriptCoverage>>()
|
|
}
|
|
|
|
pub async fn cover_files(
|
|
flags: Flags,
|
|
files: Vec<PathBuf>,
|
|
ignore: Vec<PathBuf>,
|
|
include: Vec<String>,
|
|
exclude: Vec<String>,
|
|
lcov: bool,
|
|
) -> Result<(), AnyError> {
|
|
let program_state = ProgramState::build(flags).await?;
|
|
|
|
let script_coverages = collect_coverages(files, ignore)?;
|
|
let script_coverages = filter_coverages(script_coverages, include, exclude);
|
|
|
|
let reporter_kind = if lcov {
|
|
CoverageReporterKind::Lcov
|
|
} else {
|
|
CoverageReporterKind::Pretty
|
|
};
|
|
|
|
let mut reporter = create_reporter(reporter_kind);
|
|
|
|
for script_coverage in script_coverages {
|
|
let module_specifier =
|
|
deno_core::resolve_url_or_path(&script_coverage.url)?;
|
|
program_state
|
|
.prepare_module_load(
|
|
module_specifier.clone(),
|
|
TypeLib::UnstableDenoWindow,
|
|
Permissions::allow_all(),
|
|
Permissions::allow_all(),
|
|
false,
|
|
program_state.maybe_import_map.clone(),
|
|
)
|
|
.await?;
|
|
|
|
let module_source = program_state.load(module_specifier.clone(), None)?;
|
|
let script_source = &module_source.code;
|
|
|
|
let maybe_source_map = program_state.get_source_map(&script_coverage.url);
|
|
let maybe_cached_source = program_state
|
|
.file_fetcher
|
|
.get_source(&module_specifier)
|
|
.map(|f| f.source);
|
|
|
|
reporter.visit_coverage(
|
|
&script_coverage,
|
|
&script_source,
|
|
maybe_source_map,
|
|
maybe_cached_source,
|
|
);
|
|
}
|
|
|
|
reporter.done();
|
|
|
|
Ok(())
|
|
}
|