Say that Ruby::Prism is the parser that parsed the running program

Ruby::Prism itself does not compile the program (prism_compile.c does,
and other implementations may not even compile an AST into bytecode).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

NEWS.md

@@ -210,7 +210,7 @@ Note: We're only listing outstanding class updates.
 * Ruby::Prism
 
     * `Ruby::Prism` is added.  It is the prism parser built into the
-      interpreter, i.e., the very parser that compiles the running program,
+      interpreter, i.e., the very parser that parsed the running program,
       independent of the prism gem.  It is autoloaded.
       `Method#syntax_tree` and others return its nodes.  Its API may change
       between Ruby minor versions; use the `prism` gem unless you need the

ast.rb

@@ -349,7 +349,7 @@ class RubyVM::InstructionSequence
   #
   #  The node is a Ruby::Prism::Node, not a node of the prism gem:
   #  Ruby::Prism is the parser built into the interpreter, so the returned
-  #  tree always corresponds to the compiled code regardless of which
+  #  tree always corresponds to the running code regardless of which
   #  version of the prism gem is installed.
   #
   #  This method is experimental and might change without notice.
@@ -369,8 +369,8 @@ class RubyVM::InstructionSequence
     node_id = self.node_id
     if Primitive.iseq_compiled_by_prism_p
       # Ruby::Prism is the parser built into the interpreter, i.e., the very
-      # parser that compiled this instruction sequence, so node_id always
-      # corresponds. The prism gem (if any) is not involved.
+      # parser that parsed the source of this instruction sequence, so
+      # node_id always corresponds. The prism gem (if any) is not involved.
       result = source ? Ruby::Prism.parse(source, version: "current") : Ruby::Prism.parse_file(path, version: "current")
       return nil unless result.success?
 

doc/standard_library.md

@@ -12,7 +12,7 @@ of each.
 - `RbConfig`: Information about your Ruby configuration and build
 - `Gem`: A package management framework for Ruby
 - `Pathname`: Representation of the name of a file or directory on the filesystem. Pathname is a core class, but only methods that depend on other libraries are provided as a library.
-- `Ruby::Prism`: The prism parser built into the interpreter, i.e., the parser that compiles the running program
+- `Ruby::Prism`: The prism parser built into the interpreter, i.e., the parser that parsed the running program
 
 ## Extensions
 

prism_init.c

@@ -5,7 +5,7 @@ void rb_autoload_str(VALUE mod, ID id, VALUE file);
 
 /*
  * The prism parser is linked into the interpreter and exposed as the
- * Ruby::Prism module. It is the very parser that compiled the running
+ * Ruby::Prism module. It is the very parser that parsed the running
  * code, independent of any version of the prism gem that may be installed.
  *
  * `require "ruby/prism"` loads the Ruby part of the library
@@ -21,7 +21,7 @@ Init_Prism(void)
      * Document-module: Ruby::Prism
      *
      * \Ruby::Prism is the prism parser built into the interpreter, i.e., the
-     * very parser that compiles the running program.
+     * very parser that parsed the running program.
      *
      * Its API follows the version of prism bundled with this Ruby, and may
      * change incompatibly between Ruby minor versions: not only the node
@@ -39,7 +39,7 @@ Init_Prism(void)
 /*
  * Set up the autoload of Ruby::Prism, so that programs that do not use it
  * pay nothing. This is called after the command line options are processed,
- * and only when prism is the parser that compiles the program: with
+ * and only when prism is the parser that parses the program: with
  * --parser=parse.y, Ruby::Prism is not defined.
  */
 void

ruby.c

@@ -1839,7 +1839,7 @@ ruby_opt_init(ruby_cmdline_options_t *opt)
     rb_zjit_init_builtin_cmes();
 #endif
 
-    // Ruby::Prism is the parser that compiles the program; it is not
+    // Ruby::Prism is the parser that parsed the program; it is not
     // exposed when parse.y is selected by --parser.
     if (rb_ruby_prism_p()) {
         rb_prism_init_autoload();

tool/sync_default_gems.rb

@@ -408,7 +408,7 @@ module SyncDefaultGems
 
   # The upstream prism is written for the `Prism` namespace of the prism gem.
   # In ruby/ruby the same code is built into the interpreter as `Ruby::Prism`
-  # so that it is always the very parser that compiled the running code, no
+  # so that it is always the very parser that parsed the running code, no
   # matter which version of the prism gem is installed.  Rewrite the namespace
   # (and the `prism/...` feature names) of the synced files here, so that the
   # upstream repository does not need to know about the renaming.