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Remember initial types instead of lazy-loading #1697

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Remember initial types instead of lazy-loading #1697

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e501d3a
remember initial types instead of lazy-loading
rudiedirkx Apr 30, 2025
e6ed1f4
types callables fix
rudiedirkx May 2, 2025
0614bd7
Merge branch 'master' into pr-1697-rudiedirkx
spawnia Jul 20, 2026
6c1f1bf
Merge branch 'master' into pr-1697-rudiedirkx
spawnia Jul 28, 2026
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4 changes: 4 additions & 0 deletions src/Type/Schema.php
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Original file line number Diff line number Diff line change
Expand Up @@ -99,6 +99,10 @@ public function __construct($config)
$this->extensionASTNodes = $config->extensionASTNodes;

$this->config = $config;

foreach ($this->config->types as $type) {

@spawnia spawnia May 2, 2025

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Users may specify types in a multitude of ways, its type is iterable<Type&NamedType>|(callable(): iterable<Type&NamedType>)|iterable<(callable(): Type&NamedType)>|(callable(): iterable<(callable(): Type&NamedType)>). The code you wrote does not work with some of those options.

$this->resolvedTypes[$type->name()] = $type;

Copilot AI Feb 16, 2026

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The constructor does not validate for duplicate type names, but getTypeMap() does (line 145-148). This means duplicate types in the 'types' config will silently overwrite each other in the constructor, potentially causing unexpected behavior. The validation check from getTypeMap() should be added to the constructor loop as well.

Suggested change
$this->resolvedTypes[$type->name()] = $type;
$typeName = $type->name();
if (isset($this->resolvedTypes[$typeName]) && $this->resolvedTypes[$typeName] !== $type) {
throw new InvariantViolation(
'Schema must contain unique named types but contains multiple types named ' . $typeName
);
}
$this->resolvedTypes[$typeName] = $type;

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}
Comment on lines +111 to +119

Copilot AI Feb 16, 2026

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Eagerly resolving all types in the constructor defeats the purpose of lazy loading and can negatively impact performance for large schemas. If the types array contains many types or lazy callables, all of them will be resolved immediately during schema construction, even if they're never used. This is particularly problematic when combined with typeLoader, as it changes the expected behavior where types are only loaded on-demand. Consider documenting this behavior change and its performance implications.

Suggested change
if (is_callable($types)) {
$types = $types();
}
foreach ($types as $typeOrLazyType) {
/** @var Type|callable(): Type $typeOrLazyType */
$type = self::resolveType($typeOrLazyType);
assert($type instanceof NamedType);
$this->resolvedTypes[$type->name()] = $type;
}
// If $types is a callable, defer its execution to preserve lazy loading.
if (! is_callable($types)) {
foreach ($types as $typeOrLazyType) {
/** @var Type|callable(): Type $typeOrLazyType */
$type = self::resolveType($typeOrLazyType);
assert($type instanceof NamedType);
$this->resolvedTypes[$type->name()] = $type;
}
}

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}

/**
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