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small optimization for evaller

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This commit is contained in:
Pekka Laiho 2020-12-07 09:13:46 +07:00
parent 55da5fb9b6
commit 086765d286
1 changed files with 9 additions and 5 deletions
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14
src/Evaller.php
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@ -42,12 +42,17 @@ class Evaller
// Handle response for anything but a list
if ($ast instanceof Symbol) {
// Lookup symbol from env
return $env->get($ast->getName());
} elseif ($ast instanceof Vector || $ast instanceof Hash) {
$newData = [];
foreach ($ast->getData() as $key => $val) {
$newData[$key] = $this->eval($val, $env, $depth + 1);
if ($val instanceof Symbol) {
$newData[$key] = $env->get($val->getName());
} elseif ($val instanceof Collection) {
$newData[$key] = $this->eval($val, $env, $depth + 1);
} else {
$newData[$key] = $val;
}
}
return $ast::new($newData);
} elseif ($ast instanceof MList == false) {
@ -198,10 +203,10 @@ class Evaller
if ($result == true) {
$ast = $astData[2];
continue;
continue; // tco
} elseif ($astLength == 4) {
$ast = $astData[3];
continue;
continue; // tco
} else {
return null;
}
@ -330,7 +335,6 @@ class Evaller
$newData = [];
foreach ($astData as $a) {
if ($a instanceof Symbol) {
// Lookup symbol from env
$newData[] = $env->get($a->getName());
} elseif ($a instanceof Collection) {
$newData[] = $this->eval($a, $env, $depth + 1);