From 250204b056f0b04e84d4df33841e8671070247db Mon Sep 17 00:00:00 2001
From: Yaacov Rydzinski <yaacovCR@gmail.com>
Date: Tue, 20 Oct 2026 21:20:43 +0300
Subject: [PATCH] fix: pass parser options through buildSchema

---
 .../__tests__/buildASTSchema-test.ts          | 41 +++++++++++++++++++
 src/utilities/buildASTSchema.ts               |  5 +--
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/src/utilities/__tests__/buildASTSchema-test.ts b/src/utilities/__tests__/buildASTSchema-test.ts
index 15ff4c098d..517521e320 100644
--- a/src/utilities/__tests__/buildASTSchema-test.ts
+++ b/src/utilities/__tests__/buildASTSchema-test.ts
@@ -98,6 +98,47 @@ describe('Schema Builder', () => {
     });
   });
 
+  it('forwards the maximum lexical token limit', () => {
+    const source = 'type Query { field: String }';
+
+    expect(() => buildSchema(source, { maxLexicalTokens: 7 })).to.not.throw();
+    expect(() => buildSchema(source, { maxLexicalTokens: 6 })).to.throw(
+      'Syntax Error: Document contains more than 6 tokens. Parsing aborted.',
+    );
+  });
+
+  it('forwards the deprecated maxTokens alias', () => {
+    const source = 'type Query { field: Int }';
+    expect(() => buildSchema(source, { maxTokens: 7 })).not.to.throw();
+    expect(() => buildSchema(source, { maxTokens: 6 })).to.throw(
+      'Document contains more than 6 tokens. Parsing aborted.',
+    );
+    expect(() => buildSchema(source, { maxTokens: 0 })).to.throw(
+      'Document contains more than 0 tokens. Parsing aborted.',
+    );
+  });
+
+  it('forwards the maximum source length to the parser', () => {
+    const source = 'type Query';
+    expect(() =>
+      buildSchema(source, { maxSourceLength: source.length }),
+    ).to.not.throw();
+
+    const maxSourceLength = source.length - 1;
+    expect(() => buildSchema(source, { maxSourceLength })).to.throw(
+      `Syntax Error: Source contains more than ${maxSourceLength} UTF-16 code units. Parsing aborted.`,
+    );
+  });
+
+  it('forwards the maximum comment limit', () => {
+    const source = '# comment\ntype Query';
+
+    expect(() => buildSchema(source, { maxComments: 1 })).to.not.throw();
+    expect(() => buildSchema(source, { maxComments: 0 })).to.throw(
+      'Syntax Error: Document contains more than 0 comments. Parsing aborted.',
+    );
+  });
+
   it('Ignores non-type system definitions', () => {
     const sdl = `
       type Query {
diff --git a/src/utilities/buildASTSchema.ts b/src/utilities/buildASTSchema.ts
index fd63bdd715..9c05418190 100644
--- a/src/utilities/buildASTSchema.ts
+++ b/src/utilities/buildASTSchema.ts
@@ -151,10 +151,7 @@ export function buildSchema(
   source: string | Source,
   options?: BuildSchemaOptions & ParseOptions,
 ): GraphQLSchema {
-  const document = parse(source, {
-    noLocation: options?.noLocation,
-    experimentalFragmentArguments: options?.experimentalFragmentArguments,
-  });
+  const document = parse(source, options);
 
   return buildASTSchema(document, {
     assumeValidSDL: options?.assumeValidSDL,