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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use std::borrow::Cow;
use deno_ast::CjsAnalysis;use deno_ast::MediaType;use deno_ast::ModuleSpecifier;use deno_core::error::AnyError;use deno_runtime::deno_fs;use deno_runtime::deno_node::analyze::CjsAnalysis as ExtNodeCjsAnalysis;use deno_runtime::deno_node::analyze::CjsCodeAnalyzer;use deno_runtime::deno_node::analyze::NodeCodeTranslator;
use crate::cache::NodeAnalysisCache;use crate::util::fs::canonicalize_path_maybe_not_exists;
pub type CliNodeCodeTranslator = NodeCodeTranslator<CliCjsCodeAnalyzer>;
/// Resolves a specifier that is pointing into a node_modules folder.////// Note: This should be called whenever getting the specifier from/// a Module::External(module) reference because that module might/// not be fully resolved at the time deno_graph is analyzing it/// because the node_modules folder might not exist at that time.pub fn resolve_specifier_into_node_modules(  specifier: &ModuleSpecifier,) -> ModuleSpecifier {  specifier    .to_file_path()    .ok()    // this path might not exist at the time the graph is being created    // because the node_modules folder might not yet exist    .and_then(|path| canonicalize_path_maybe_not_exists(&path).ok())    .and_then(|path| ModuleSpecifier::from_file_path(path).ok())    .unwrap_or_else(|| specifier.clone())}
pub struct CliCjsCodeAnalyzer {  cache: NodeAnalysisCache,  fs: deno_fs::FileSystemRc,}
impl CliCjsCodeAnalyzer {  pub fn new(cache: NodeAnalysisCache, fs: deno_fs::FileSystemRc) -> Self {    Self { cache, fs }  }
  fn inner_cjs_analysis(    &self,    specifier: &ModuleSpecifier,    source: &str,  ) -> Result<CjsAnalysis, AnyError> {    let source_hash = NodeAnalysisCache::compute_source_hash(source);    if let Some(analysis) = self      .cache      .get_cjs_analysis(specifier.as_str(), &source_hash)    {      return Ok(analysis);    }
    let media_type = MediaType::from_specifier(specifier);    if media_type == MediaType::Json {      return Ok(CjsAnalysis {        exports: vec![],        reexports: vec![],      });    }
    let parsed_source = deno_ast::parse_script(deno_ast::ParseParams {      specifier: specifier.to_string(),      text_info: deno_ast::SourceTextInfo::new(source.into()),      media_type,      capture_tokens: true,      scope_analysis: false,      maybe_syntax: None,    })?;    let analysis = parsed_source.analyze_cjs();    self      .cache      .set_cjs_analysis(specifier.as_str(), &source_hash, &analysis);
    Ok(analysis)  }}
impl CjsCodeAnalyzer for CliCjsCodeAnalyzer {  fn analyze_cjs(    &self,    specifier: &ModuleSpecifier,    source: Option<&str>,  ) -> Result<ExtNodeCjsAnalysis, AnyError> {    let source = match source {      Some(source) => Cow::Borrowed(source),      None => {        Cow::Owned(self.fs.read_to_string(&specifier.to_file_path().unwrap())?)      }    };    let analysis = self.inner_cjs_analysis(specifier, &source)?;    Ok(ExtNodeCjsAnalysis {      exports: analysis.exports,      reexports: analysis.reexports,    })  }}