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8185fe141c
Makefile: Drop OPT and -gnat2020, not used anymore. Simplify file list now that each unit has a body. README: Remove obsolete items. Global: Restrict most pointers to a provable non-null value. Types: merge intermediate Types.Mal into the Types package. (the intermediate package was created in order to prevent a circular dependency, but is not needed anymore). Most of the noise in the diff is caused by this change. This allows to remove most Elaboration pragmas. Declare most types abstract in the visible part, enforcing the use of the constructor outside the declaring package. Envs: Replace the Get recursion with a more efficient loop. Use MAL objects as key, string pointers do not change speed. This delegates some checks from the step files. Split the constructor and Set_Binds, so that an existing environment can be reused during TCO. Err: Attempt to group the calls. Avoid computing the message when the assertion holds. Fns: Declare and use the eval callback only here. Separate function and macro interfaces. Keep a reference to the provided parameter list instead of copying them. Garbage_Collected: Make explicit that Keep is not inherited. Printer: Remove obsolete inline indications and redundant Print_Function helper. Maps: Provide a cleaner interface copied from standard library. Sequences: stop encapsulating the implementation because of the performance hit. Steps: Move map and vector evaluations into separate functions for readability. Replace return blocks with normal blocks (MAL values are not finalized anymore). Rename standard arrays instead of sequence_ptr when possible. Remove some duplication and indentation from the apply phase. Move the frequent special forms in front of the test cascade. When an environment has been created in the same Eval, reuse it. Strings: Use the same garbage-collected storage model for all strings. This seems faster than the default (mutable) string types. Hide most of the implementation to avoid leaks. Symbols: stop ensuring unique allocation of symbols. The reduced garbage collection and comparison time was compensed by the maintainance of a global hash.
46 lines
909 B
Ada
46 lines
909 B
Ada
with Ada.Text_IO;
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with Readline;
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procedure Step0_Repl is
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function Read return String with Inline;
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function Eval (Ast : in String) return String;
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procedure Print (Ast : in String) with Inline;
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procedure Rep with Inline;
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----------------------------------------------------------------------
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function Eval (Ast : in String) return String
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is (Ast);
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procedure Print (Ast : in String) is
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begin
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Ada.Text_IO.Put_Line (Ast);
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end Print;
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function Read return String is (Readline.Input ("user> "));
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procedure Rep is
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begin
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Print (Eval (Read));
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end Rep;
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----------------------------------------------------------------------
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begin
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loop
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begin
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Rep;
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exception
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when Readline.End_Of_File =>
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exit;
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end;
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-- Other exceptions are really unexpected.
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end loop;
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Ada.Text_IO.New_Line;
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end Step0_Repl;
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