diff options
Diffstat (limited to 'crates/shirabe/src/autoload')
| -rw-r--r-- | crates/shirabe/src/autoload/autoload_generator.rs | 319 |
1 files changed, 308 insertions, 11 deletions
diff --git a/crates/shirabe/src/autoload/autoload_generator.rs b/crates/shirabe/src/autoload/autoload_generator.rs index ded7cee..1910136 100644 --- a/crates/shirabe/src/autoload/autoload_generator.rs +++ b/crates/shirabe/src/autoload/autoload_generator.rs @@ -355,10 +355,10 @@ impl AutoloadGenerator { .collect(); } - let classmap_list = autoloads + let classmap_list: Vec<PhpMixed> = autoloads .get("classmap") - .and_then(|v| v.as_list()) - .cloned() + .and_then(|v| v.as_array()) + .map(|m| m.values().cloned().collect()) .unwrap_or_default(); for dir in &classmap_list { let dir_str = dir.as_string().unwrap_or(""); @@ -647,13 +647,20 @@ impl AutoloadGenerator { ), )?; - // PHP: __DIR__ refers to the directory of AutoloadGenerator.php + // PHP: __DIR__ refers to the directory of AutoloadGenerator.php, an absolute path + // independent of the cwd. The ClassLoader.php and LICENSE templates are bundled from the + // upstream composer source tree, resolved at build time relative to this crate's manifest + // (mirroring the InstalledVersions.php include in FilesystemRepository). + let autoload_dir = concat!( + env!("CARGO_MANIFEST_DIR"), + "/../../composer/src/Composer/Autoload" + ); filesystem.safe_copy( - &format!("{}/ClassLoader.php", "composer/src/Composer/Autoload"), + &format!("{}/ClassLoader.php", autoload_dir), &format!("{}/ClassLoader.php", target_dir), )?; filesystem.safe_copy( - &format!("{}/../../../LICENSE", "composer/src/Composer/Autoload"), + &format!("{}/../../../LICENSE", autoload_dir), &format!("{}/LICENSE", target_dir), )?; @@ -1407,7 +1414,7 @@ impl AutoloadGenerator { let mut loader = ClassLoader::new(None); // PHP: $map = require $targetDir . '/autoload_namespaces.php'; - let map = shirabe_php_shim::php_require(&format!("{}/autoload_namespaces.php", target_dir)); + let map = require_generated_php_array(&format!("{}/autoload_namespaces.php", target_dir)); if let Some(map_arr) = map.as_array() { for (namespace, path) in map_arr { let paths: Vec<String> = if let PhpMixed::List(items) = path.clone() { @@ -1422,7 +1429,7 @@ impl AutoloadGenerator { } } - let map = shirabe_php_shim::php_require(&format!("{}/autoload_psr4.php", target_dir)); + let map = require_generated_php_array(&format!("{}/autoload_psr4.php", target_dir)); if let Some(map_arr) = map.as_array() { for (namespace, path) in map_arr { let paths: Vec<String> = if let PhpMixed::List(items) = path.clone() { @@ -1438,7 +1445,7 @@ impl AutoloadGenerator { } let class_map = - shirabe_php_shim::php_require(&format!("{}/autoload_classmap.php", target_dir)); + require_generated_php_array(&format!("{}/autoload_classmap.php", target_dir)); if class_map.as_bool() != Some(false) && !class_map.is_null() && let Some(cm) = class_map.as_array() @@ -1558,7 +1565,7 @@ impl AutoloadGenerator { if file_exists(&format!("{}/autoload_files.php", target_dir)) { maps.insert( "files".to_string(), - shirabe_php_shim::php_require(&format!("{}/autoload_files.php", target_dir)), + require_generated_php_array(&format!("{}/autoload_files.php", target_dir)), ); } @@ -1658,7 +1665,19 @@ impl AutoloadGenerator { install_path = substr(&install_path, 0, Some(-(suffix_to_remove.len() as i64))); } - let type_arr = type_value.as_array().cloned().unwrap_or_default(); + // PHP iterates `$autoload[$type]` as a PHP array regardless of whether it is a + // string-keyed map (psr-0/psr-4) or a numerically-indexed list (classmap/files/ + // exclude-from-classmap, which JSON decodes to `PhpMixed::List`). Normalize both into + // `(key, value)` pairs so list-form types are not silently skipped. + let type_arr: IndexMap<String, PhpMixed> = match type_value { + PhpMixed::Array(a) => a.clone(), + PhpMixed::List(l) => l + .iter() + .enumerate() + .map(|(i, v)| (i.to_string(), v.clone())) + .collect(), + _ => IndexMap::new(), + }; for (namespace, paths) in type_arr { let namespace = if ["psr-4", "psr-0"].contains(&r#type) { // normalize namespaces to ensure "\" becomes "" and others do not have leading separators as they are not needed @@ -1914,6 +1933,284 @@ impl AutoloadGenerator { } } +/// Evaluates one of the `autoload_namespaces.php` / `autoload_psr4.php` / `autoload_classmap.php` +/// files that `dump` just generated, returning the `return array(...)` payload with every path +/// expression resolved to an absolute string. This stands in for PHP's `require $file` (there is no +/// interpreter), exploiting the fact that the generated grammar is fixed and fully controlled here: +/// a `$vendorDir = <expr>;` / `$baseDir = <expr>;` header followed by `return array( ... );` whose +/// values are either a single path expression or `array(<expr>, ...)`. Each expression is a ` . ` +/// joined chain of `'literal'`, `$vendorDir`, `$baseDir`, `__DIR__`, and `dirname(...)` terms. +/// Returns `PhpMixed::Bool(false)` when the file is absent (mirroring a failed `require`). +fn require_generated_php_array(file: &str) -> PhpMixed { + let contents = match std::fs::read_to_string(file) { + Ok(c) => c, + Err(_) => return PhpMixed::Bool(false), + }; + + // __DIR__ inside the generated file is the directory that contains it. + let dir = std::path::Path::new(file) + .parent() + .map(|p| p.to_string_lossy().replace('\\', "/")) + .unwrap_or_default(); + + let mut vendor_dir = String::new(); + let mut base_dir = String::new(); + for line in contents.lines() { + let line = line.trim(); + if let Some(rest) = line.strip_prefix("$vendorDir = ") { + vendor_dir = eval_php_path_expr(rest.trim_end_matches(';'), &dir, "", ""); + } else if let Some(rest) = line.strip_prefix("$baseDir = ") { + base_dir = eval_php_path_expr(rest.trim_end_matches(';'), &dir, &vendor_dir, ""); + } + } + + let start = match contents.find("return array(") { + Some(i) => i + "return array(".len(), + None => return PhpMixed::Array(IndexMap::new()), + }; + let end = match contents.rfind(");") { + Some(i) => i, + None => return PhpMixed::Array(IndexMap::new()), + }; + let body = &contents[start..end]; + + let mut map: IndexMap<String, PhpMixed> = IndexMap::new(); + for entry in split_top_level_commas(body) { + let entry = entry.trim(); + if entry.is_empty() { + continue; + } + let Some(arrow) = find_top_level_arrow(entry) else { + continue; + }; + let key_expr = entry[..arrow].trim(); + let value_expr = entry[arrow + 2..].trim(); + let key = eval_php_string_literal(key_expr); + + let value = if let Some(inner) = value_expr + .strip_prefix("array(") + .and_then(|s| s.strip_suffix(')')) + { + let items: Vec<PhpMixed> = split_top_level_commas(inner) + .into_iter() + .filter(|p| !p.trim().is_empty()) + .map(|p| { + PhpMixed::String(eval_php_path_expr(p.trim(), &dir, &vendor_dir, &base_dir)) + }) + .collect(); + PhpMixed::List(items) + } else { + PhpMixed::String(eval_php_path_expr(value_expr, &dir, &vendor_dir, &base_dir)) + }; + map.insert(key, value); + } + + PhpMixed::Array(map) +} + +/// Evaluates a single PHP path expression from a generated autoload file (e.g. +/// `$baseDir . '/lib'`, `dirname(__DIR__)`, `'phar://' . $vendorDir . '/x'`). +fn eval_php_path_expr(expr: &str, dir: &str, vendor_dir: &str, base_dir: &str) -> String { + let mut out = String::new(); + for term in split_concat_terms(expr) { + let term = term.trim(); + if term.starts_with('\'') { + out.push_str(&eval_php_string_literal(term)); + } else if term == "__DIR__" { + out.push_str(dir); + } else if term == "$vendorDir" { + out.push_str(vendor_dir); + } else if term == "$baseDir" { + out.push_str(base_dir); + } else if term.starts_with("dirname(") { + out.push_str(&eval_php_dirname(term, dir, vendor_dir, base_dir)); + } + } + out +} + +/// Evaluates a (possibly nested) `dirname(...)` call against the same variable bindings. +fn eval_php_dirname(term: &str, dir: &str, vendor_dir: &str, base_dir: &str) -> String { + let inner = term + .strip_prefix("dirname(") + .and_then(|s| s.strip_suffix(')')) + .unwrap_or(""); + let resolved = eval_php_path_expr(inner, dir, vendor_dir, base_dir); + let path = resolved.trim_end_matches('/'); + match path.rfind('/') { + Some(0) => "/".to_string(), + Some(i) => path[..i].to_string(), + None => ".".to_string(), + } +} + +/// Unescapes a single-quoted PHP string literal (`'...'`), handling `\\` and `\'`. +fn eval_php_string_literal(literal: &str) -> String { + let inner = literal + .trim() + .strip_prefix('\'') + .and_then(|s| s.strip_suffix('\'')) + .unwrap_or(literal); + let mut out = String::new(); + let mut chars = inner.chars(); + while let Some(c) = chars.next() { + if c == '\\' { + match chars.next() { + Some('\\') => out.push('\\'), + Some('\'') => out.push('\''), + Some(other) => { + out.push('\\'); + out.push(other); + } + None => out.push('\\'), + } + } else { + out.push(c); + } + } + out +} + +/// Splits a PHP concatenation expression on top-level ` . ` separators, ignoring `.` inside string +/// literals and inside parenthesised `dirname(...)` calls. +fn split_concat_terms(expr: &str) -> Vec<String> { + let bytes: Vec<char> = expr.chars().collect(); + let mut terms = Vec::new(); + let mut current = String::new(); + let mut in_string = false; + let mut depth = 0i32; + let mut i = 0; + while i < bytes.len() { + let c = bytes[i]; + if in_string { + current.push(c); + if c == '\\' && i + 1 < bytes.len() { + current.push(bytes[i + 1]); + i += 2; + continue; + } + if c == '\'' { + in_string = false; + } + i += 1; + continue; + } + match c { + '\'' => { + in_string = true; + current.push(c); + } + '(' => { + depth += 1; + current.push(c); + } + ')' => { + depth -= 1; + current.push(c); + } + '.' if depth == 0 + && i > 0 + && bytes[i - 1] == ' ' + && i + 1 < bytes.len() + && bytes[i + 1] == ' ' => + { + terms.push(current.trim().to_string()); + current.clear(); + } + _ => current.push(c), + } + i += 1; + } + if !current.trim().is_empty() { + terms.push(current.trim().to_string()); + } + terms +} + +/// Splits an `array(...)`/`return array(...)` body on top-level commas, ignoring commas inside +/// string literals and nested parentheses. +fn split_top_level_commas(body: &str) -> Vec<String> { + let chars: Vec<char> = body.chars().collect(); + let mut parts = Vec::new(); + let mut current = String::new(); + let mut in_string = false; + let mut depth = 0i32; + let mut i = 0; + while i < chars.len() { + let c = chars[i]; + if in_string { + current.push(c); + if c == '\\' && i + 1 < chars.len() { + current.push(chars[i + 1]); + i += 2; + continue; + } + if c == '\'' { + in_string = false; + } + i += 1; + continue; + } + match c { + '\'' => { + in_string = true; + current.push(c); + } + '(' => { + depth += 1; + current.push(c); + } + ')' => { + depth -= 1; + current.push(c); + } + ',' if depth == 0 => { + parts.push(std::mem::take(&mut current)); + } + _ => current.push(c), + } + i += 1; + } + if !current.trim().is_empty() { + parts.push(current); + } + parts +} + +/// Finds the byte offset of the top-level ` => ` separator in an array entry, skipping string +/// literals and nested parentheses. +fn find_top_level_arrow(entry: &str) -> Option<usize> { + let bytes = entry.as_bytes(); + let mut in_string = false; + let mut depth = 0i32; + let mut i = 0; + while i < bytes.len() { + let c = bytes[i]; + if in_string { + if c == b'\\' { + i += 2; + continue; + } + if c == b'\'' { + in_string = false; + } + i += 1; + continue; + } + match c { + b'\'' => in_string = true, + b'(' => depth += 1, + b')' => depth -= 1, + b'=' if depth == 0 && i + 1 < bytes.len() && bytes[i + 1] == b'>' => { + return Some(i); + } + _ => {} + } + i += 1; + } + None +} + pub fn composer_require(_file_identifier: &str, _file: &str) { // TODO(phase-c): unportable — depends on the $GLOBALS superglobal // ($GLOBALS['__composer_autoload_files']) and PHP's `require $file` include |