mirror of
https://github.com/kanaka/mal.git
synced 2024-09-17 16:47:22 +03:00
8a19f60386
- Reorder README to have implementation list after "learning tool" bullet. - This also moves tests/ and libs/ into impls. It would be preferrable to have these directories at the top level. However, this causes difficulties with the wasm implementations which need pre-open directories and have trouble with paths starting with "../../". So in lieu of that, symlink those directories to the top-level. - Move the run_argv_test.sh script into the tests directory for general hygiene.
431 lines
13 KiB
Plaintext
431 lines
13 KiB
Plaintext
(module $step6_file
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(global $repl_env (mut i32) (i32.const 0))
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;; READ
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(func $READ (param $str i32) (result i32)
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($read_str $str)
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)
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;; EVAL
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(func $EVAL_AST (param $ast i32 $env i32 $skiplast i32) (result i32)
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(LET $res 0 $val2 0 $val3 0 $type 0 $found 0
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$ret 0 $empty 0 $current 0)
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(if (global.get $error_type) (return 0))
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(local.set $type ($TYPE $ast))
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;;($PR_VALUE ">>> EVAL_AST ast: '%s'\n" $ast)
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;;; switch(type)
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(block $done
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(block $default (block (block
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(br_table 2 2 2 2 2 0 1 1 1 2 2 2 2 2 2 2 $type))
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;; symbol
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;; found/res returned as hi 32/lo 32 of i64
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(local.set $res ($ENV_GET $env $ast))
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(br $done))
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;; list, vector, hashmap
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;; MAP_LOOP_START
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(local.set $res ($MAP_LOOP_START $type))
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;; push MAP_LOOP stack
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;;; empty = current = ret = res
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(local.set $ret $res)
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(local.set $current $res)
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(local.set $empty $res)
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(block $done
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(loop $loop
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;; check if we are done evaluating the source sequence
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(br_if $done (i32.eq ($VAL0 $ast) 0))
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(if $skiplast
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(br_if $done (i32.eqz ($VAL0 ($MEM_VAL0_ptr $ast)))))
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(if (i32.eq $type (global.get $HASHMAP_T))
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(then
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(local.set $res ($EVAL ($MEM_VAL2_ptr $ast) $env)))
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(else
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(local.set $res ($EVAL ($MEM_VAL1_ptr $ast) $env))))
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(local.set $val2 $res)
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;; if error, release the unattached element
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(if (global.get $error_type)
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(then
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($RELEASE $res)
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(local.set $res 0)
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(br $done)))
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;; for hash-maps, copy the key (inc ref since we are going
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;; to release it below)
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(if (i32.eq $type (global.get $HASHMAP_T))
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(then
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(local.set $val3 $val2)
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(local.set $val2 ($MEM_VAL1_ptr $ast))
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(drop ($INC_REF $val2))))
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;; MAP_LOOP_UPDATE
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(local.set $res ($MAP_LOOP_UPDATE $type $empty $current $val2 $val3))
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(if (i32.le_u $current (global.get $EMPTY_HASHMAP))
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;; if first element, set return to new element
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(local.set $ret $res))
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;; update current to point to new element
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(local.set $current $res)
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(local.set $ast ($MEM_VAL0_ptr $ast))
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(br $loop)
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)
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)
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;; MAP_LOOP_DONE
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(local.set $res $ret)
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;; EVAL_AST_RETURN: nothing to do
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(br $done))
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;; default
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(local.set $res ($INC_REF $ast))
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)
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$res
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)
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(func $MAL_GET_A1 (param $ast i32) (result i32)
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($MEM_VAL1_ptr ($MEM_VAL0_ptr $ast)))
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(func $MAL_GET_A2 (param $ast i32) (result i32)
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($MEM_VAL1_ptr ($MEM_VAL0_ptr ($MEM_VAL0_ptr $ast))))
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(func $MAL_GET_A3 (param $ast i32) (result i32)
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($MEM_VAL1_ptr ($MEM_VAL0_ptr ($MEM_VAL0_ptr ($MEM_VAL0_ptr $ast)))))
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(func $EVAL (param $orig_ast i32 $orig_env i32) (result i32)
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(LET $ast $orig_ast
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$env $orig_env
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$prev_ast 0 $prev_env 0 $res 0 $el 0
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$ftype 0 $f_args 0 $f 0 $args 0
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$a0 0 $a0sym 0 $a1 0 $a2 0)
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(block $EVAL_return
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(loop $TCO_loop
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(local.set $f_args 0)
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(local.set $f 0)
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(local.set $args 0)
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(if (global.get $error_type)
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(then
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(local.set $res 0)
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(br $EVAL_return)))
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;;($PR_VALUE ">>> EVAL ast: '%s'\n" $ast)
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(if (i32.ne ($TYPE $ast) (global.get $LIST_T))
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(then
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(local.set $res ($EVAL_AST $ast $env 0))
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(br $EVAL_return)))
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;; APPLY_LIST
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(if ($EMPTY_Q $ast)
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(then
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(local.set $res ($INC_REF $ast))
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(br $EVAL_return)))
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(local.set $a0 ($MEM_VAL1_ptr $ast))
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(local.set $a0sym "")
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(if (i32.eq ($TYPE $a0) (global.get $SYMBOL_T))
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(local.set $a0sym ($to_String $a0)))
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(if (i32.eqz ($strcmp "def!" $a0sym))
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(then
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(local.set $a1 ($MAL_GET_A1 $ast))
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(local.set $a2 ($MAL_GET_A2 $ast))
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(local.set $res ($EVAL $a2 $env))
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(br_if $EVAL_return (global.get $error_type))
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;; set a1 in env to a2
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(local.set $res ($ENV_SET $env $a1 $res))
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(br $EVAL_return))
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(else (if (i32.eqz ($strcmp "let*" $a0sym))
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(then
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(local.set $a1 ($MAL_GET_A1 $ast))
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(local.set $a2 ($MAL_GET_A2 $ast))
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;; create new environment with outer as current environment
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(local.set $prev_env $env) ;; save env for later release
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(local.set $env ($ENV_NEW $env))
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(block $done
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(loop $loop
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(br_if $done (i32.eqz ($VAL0 $a1)))
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;; eval current A1 odd element
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(local.set $res ($EVAL ($MEM_VAL1_ptr ($MEM_VAL0_ptr $a1)) $env))
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(br_if $done (global.get $error_type))
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;; set key/value in the let environment
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(local.set $res ($ENV_SET $env ($MEM_VAL1_ptr $a1) $res))
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;; release our use, ENV_SET took ownership
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($RELEASE $res)
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;; skip to the next pair of a1 elements
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(local.set $a1 ($MEM_VAL0_ptr ($MEM_VAL0_ptr $a1)))
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(br $loop)
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)
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)
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;; release previous environment if not the current EVAL env
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(if (i32.ne $prev_env $orig_env)
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(then
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($RELEASE $prev_env)
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(local.set $prev_env 0)))
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(local.set $ast $a2)
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(br $TCO_loop))
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(else (if (i32.eqz ($strcmp "do" $a0sym))
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(then
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;; EVAL the rest through second to last
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(local.set $el ($EVAL_AST ($MEM_VAL0_ptr $ast) $env 1))
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(local.set $ast ($LAST $ast))
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($RELEASE $ast) ;; we already own it via ast
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($RELEASE $el)
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(br $TCO_loop))
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(else (if (i32.eqz ($strcmp "if" $a0sym))
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(then
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(local.set $a1 ($MAL_GET_A1 $ast))
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(local.set $res ($EVAL $a1 $env))
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(if (global.get $error_type)
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(then (nop))
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(else (if (OR (i32.eq $res (global.get $NIL))
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(i32.eq $res (global.get $FALSE)))
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(then
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($RELEASE $res)
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;; if no false case (A3), return nil
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(if (i32.lt_u ($COUNT $ast) 4)
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(then
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(local.set $res ($INC_REF (global.get $NIL)))
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(br $EVAL_return))
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(else
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(local.set $ast ($MAL_GET_A3 $ast)))))
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(else
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($RELEASE $res)
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(local.set $ast ($MAL_GET_A2 $ast))))))
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(br $TCO_loop))
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(else (if (i32.eqz ($strcmp "fn*" $a0sym))
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(then
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(local.set $a1 ($MAL_GET_A1 $ast))
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(local.set $a2 ($MAL_GET_A2 $ast))
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(local.set $res ($MALFUNC $a2 $a1 $env))
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(br $EVAL_return))
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(else
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;; EVAL_INVOKE
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(local.set $res ($EVAL_AST $ast $env 0))
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(local.set $f_args $res)
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;; if error, return f/args for release by caller
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(if (global.get $error_type)
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(then
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(local.set $res $f_args)
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(br $EVAL_return)))
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(local.set $args ($MEM_VAL0_ptr $f_args)) ;; rest
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(local.set $f ($MEM_VAL1_ptr $f_args)) ;; value
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(local.set $ftype ($TYPE $f))
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(if (i32.eq $ftype (global.get $FUNCTION_T))
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(then
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(if (i32.eq ($VAL0 $f) 0) ;; eval
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(then
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(local.set $res ($EVAL ($MEM_VAL1_ptr $args)
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(global.get $repl_env))))
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(else
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(local.set $res (call_indirect (type $fnT) $args ($VAL0 $f)))))
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;; release f/args
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($RELEASE $f_args)
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(br $EVAL_return))
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(else (if (i32.eq $ftype (global.get $MALFUNC_T))
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(then
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;; save the current environment for release
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(local.set $prev_env $env)
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;; create new environment using env and params stored in function
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(local.set $env ($ENV_NEW_BINDS ($MEM_VAL2_ptr $f)
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($MEM_VAL1_ptr $f) $args))
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;; release previous environment if not the current EVAL env
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;; because our new env refers to it and we no longer need to
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;; track it (since we are TCO recurring)
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(if (i32.ne $prev_env $orig_env)
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(then
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($RELEASE $prev_env)
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(local.set $prev_env 0)))
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;; claim the AST before releasing the list containing it
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(local.set $ast ($MEM_VAL0_ptr $f))
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(drop ($INC_REF $ast))
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;; if we have already been here via TCO, release previous
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;; ast
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;; PEND_A_LV
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(if $prev_ast ($RELEASE $prev_ast))
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(local.set $prev_ast $ast)
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;; release f/args
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($RELEASE $f_args)
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(br $TCO_loop))
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(else
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($THROW_STR_1 "apply of non-function type: %d\n" $ftype)
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(local.set $res 0)
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($RELEASE $f_args)
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(br $EVAL_return)))))))))))))))
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) ;; end of TCO_loop
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) ;; end of EVAL_return
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;; EVAL_RETURN
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(if (i32.ne $env $orig_env) ($RELEASE $env))
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(if $prev_ast ($RELEASE $prev_ast))
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$res
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)
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;; PRINT
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(func $PRINT (param $ast i32) (result i32)
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($pr_str $ast 1)
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)
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;; REPL
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(func $RE (param $line i32 $env i32) (result i32)
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(LET $mv1 0 $res 0)
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(block $done
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(local.set $mv1 ($READ $line))
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(br_if $done (global.get $error_type))
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(local.set $res ($EVAL $mv1 $env))
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)
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;; release memory from MAL_READ
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($RELEASE $mv1)
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$res
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)
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(func $REP (param $line i32 $env i32) (result i32)
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(LET $mv2 0 $ms 0)
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(block $done
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(local.set $mv2 ($RE $line $env))
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(br_if $done (global.get $error_type))
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;; ($PR_MEMORY -1 -1)
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(local.set $ms ($PRINT $mv2))
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)
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;; release memory from RE
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($RELEASE $mv2)
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$ms
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)
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(func $main (param $argc i32 $argv i32) (result i32)
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(LET $line (STATIC_ARRAY 201)
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$res 0 $repl_env 0 $ms 0
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;; argument processing
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$i 0 $ret 0 $empty 0 $current 0 $val2 0)
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;; DEBUG
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;; ($printf_1 "argc: 0x%x\n" $argc)
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;; ($printf_1 "memoryBase: 0x%x\n" (global.get $memoryBase))
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;; ($printf_1 "heap_start: 0x%x\n" (global.get $heap_start))
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;; ($printf_1 "heap_end: 0x%x\n" (global.get $heap_end))
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;; ($printf_1 "mem: 0x%x\n" (global.get $mem))
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;; ($printf_1 "string_mem: %d\n" (global.get $string_mem))
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(global.set $repl_env ($ENV_NEW (global.get $NIL)))
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(local.set $repl_env (global.get $repl_env))
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;; core.EXT: defined in wasm
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($add_core_ns $repl_env)
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(drop ($ENV_SET_S $repl_env "eval" ($FUNCTION 0)))
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($checkpoint_user_memory)
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;; core.mal: defined using the language itself
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($RELEASE ($RE "(def! not (fn* (a) (if a false true)))" $repl_env))
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($RELEASE ($RE "(def! load-file (fn* (f) (eval (read-string (str \"(do \" (slurp f) \"\nnil)\")))))" $repl_env))
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;; Command line arguments
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(local.set $res ($MAP_LOOP_START (global.get $LIST_T)))
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;; push MAP_LOP stack
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;; empty = current = ret = res
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(local.set $ret $res)
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(local.set $current $res)
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(local.set $empty $res)
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(local.set $i 2)
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(block $done
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(loop $loop
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(br_if $done (i32.ge_u $i $argc))
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(local.set $val2 ($STRING (global.get $STRING_T)
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(i32.load (i32.add $argv (i32.mul $i 4)))))
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;; MAP_LOOP_UPDATE
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(local.set $res ($MAP_LOOP_UPDATE
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(global.get $LIST_T) $empty $current $val2 0))
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(if (i32.le_u $current (global.get $EMPTY_HASHMAP))
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;; if first element, set return to new element
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(local.set $ret $res))
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;; update current to point to new element
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(local.set $current $res)
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(local.set $i (i32.add $i 1))
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(br $loop)
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)
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)
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(drop ($ENV_SET_S $repl_env "*ARGV*" $ret))
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;;($PR_MEMORY -1 -1)
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(if (i32.gt_u $argc 1)
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(then
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(drop ($ENV_SET_S $repl_env
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"*FILE*" ($STRING (global.get $STRING_T)
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(i32.load (i32.add $argv 4)))))
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($RELEASE ($RE "(load-file *FILE*)" $repl_env))
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(if (global.get $error_type)
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(then
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($printf_1 "Error: %s\n" (global.get $error_str))
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(return 1))
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(else
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(return 0)))))
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;; Start REPL
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(block $repl_done
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(loop $repl_loop
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(br_if $repl_done (i32.eqz ($readline "user> " $line)))
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(br_if $repl_loop (i32.eq (i32.load8_u $line) 0))
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(local.set $res ($REP $line $repl_env))
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(if (global.get $error_type)
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(then
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(if (i32.eq 2 (global.get $error_type))
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(then
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(local.set $ms ($pr_str (global.get $error_val) 1))
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($printf_1 "Error: %s\n" ($to_String $ms))
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($RELEASE $ms)
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($RELEASE (global.get $error_val)))
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(else
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($printf_1 "Error: %s\n" (global.get $error_str))))
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(global.set $error_type 0))
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(else
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($printf_1 "%s\n" ($to_String $res))))
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($RELEASE $res)
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;;($PR_MEMORY_SUMMARY_SMALL)
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(br $repl_loop)
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)
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)
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($print "\n")
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;;($PR_MEMORY -1 -1)
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0
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)
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)
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