[Gosrc2cpg] - Limit literal code character length

joern-cli/frontends/gosrc2cpg/src/main/scala/io/joern/gosrc2cpg/astcreation/AstForPrimitivesCreator.scala

@@ -54,10 +54,9 @@ trait AstForPrimitivesCreator(implicit withSchemaValidation: ValidationMode) { t
   }
 
   private def astForLiteral(stringLiteral: ParserNodeInfo): Ast = {
-    val code = stringLiteral.json(ParserKeys.Value).str
     // TODO May need to revisit this
     val typ = getTypeOfToken(stringLiteral)
-    Ast(literalNode(stringLiteral, code, typ))
+    Ast(literalNode(stringLiteral, stringLiteral.code, typ))
   }
 
   private def astForIdentifier(ident: ParserNodeInfo): Ast = {

joern-cli/frontends/gosrc2cpg/src/test/scala/io/joern/go2cpg/passes/ast/LiteralCpgTests.scala

@@ -0,0 +1,45 @@
+package io.joern.go2cpg.passes.ast
+
+import io.joern.go2cpg.testfixtures.GoCodeToCpgSuite
+import io.shiftleft.codepropertygraph.generated.Operators
+import io.shiftleft.semanticcpg.language.*
+
+import scala.util.Random
+
+class LiteralCpgTests extends GoCodeToCpgSuite {
+  "be correct for literal code having less than 1000 characters" in {
+    val cpg = code(s"""
+         |package main
+         |func foo() {
+         | var value = "${Random.alphanumeric.take(500).mkString}"
+         | }
+         |""".stripMargin)
+
+    val List(callNode) = cpg.call.l
+    callNode.methodFullName shouldBe Operators.assignment
+    callNode.typeFullName shouldBe "string"
+
+    val List(literalNode) = cpg.literal.l
+    literalNode.typeFullName shouldBe "string"
+    literalNode.code.size shouldBe 502
+    literalNode.code.endsWith("...") shouldBe false
+  }
+
+  "be correct for literal code having more than 1000 characters" in {
+    val cpg = code(s"""
+           |package main
+           |func foo() {
+           | var value = "${Random.alphanumeric.take(1001).mkString}"
+           | }
+           |""".stripMargin)
+
+    val List(callNode) = cpg.call.l
+    callNode.methodFullName shouldBe Operators.assignment
+    callNode.typeFullName shouldBe "string"
+
+    val List(literalNode) = cpg.literal.l
+    literalNode.typeFullName shouldBe "string"
+    literalNode.code.size shouldBe 1000
+    literalNode.code.endsWith("...") shouldBe true
+  }
+}