From 7151b79c6a490eedef4da7d2427b60e5eba75a27 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E6=9D=B0?= <zdyj3170101136@gmail.com>
Date: Tue, 1 Aug 2023 11:51:20 +0800
Subject: [PATCH] classes store pointer to ClassMetadata

---
 parser/checkpoint.go  |   2 +-
 parser/chunk.go       |   9 ++--
 parser/event_types.go | 112 +++++++++++++++++++++---------------------
 parser/types.go       |  56 ++++++++++-----------
 4 files changed, 90 insertions(+), 89 deletions(-)

diff --git a/parser/checkpoint.go b/parser/checkpoint.go
index 6d91d52..02ec36f 100644
--- a/parser/checkpoint.go
+++ b/parser/checkpoint.go
@@ -67,7 +67,7 @@ func (c *CheckpointEvent) Parse(r reader.Reader, classes ClassMap, cpools PoolMa
 				results[i] = &threads[i]
 			}
 		case "jdk.types.StackTrace":
-			var classStackFrames ClassMetadata
+			var classStackFrames *ClassMetadata
 			for _, class := range classes {
 				if class.Name == "jdk.types.StackFrame" {
 					classStackFrames = class
diff --git a/parser/chunk.go b/parser/chunk.go
index 94e842e..87ca394 100644
--- a/parser/chunk.go
+++ b/parser/chunk.go
@@ -13,7 +13,7 @@ type CPool struct {
 	Pool     map[int]ParseResolvable
 	resolved bool
 }
-type ClassMap map[int]ClassMetadata
+type ClassMap map[int]*ClassMetadata
 type PoolMap map[int]*CPool
 
 type Chunk struct {
@@ -42,7 +42,7 @@ type Chunk struct {
 }
 
 type ChunkParseOptions struct {
-	CPoolProcessor func(meta ClassMetadata, cpool *CPool)
+	CPoolProcessor func(meta *ClassMetadata, cpool *CPool)
 }
 
 func (c *Chunk) Parse(r io.Reader, options *ChunkParseOptions) (err error) {
@@ -218,8 +218,9 @@ func (c *Chunk) buildClasses(metadata MetadataEvent) ClassMap {
 			return &c.nativeLibrary
 		},
 	}
-	classes := make(map[int]ClassMetadata, len(metadata.Root.Metadata.Classes))
-	for _, class := range metadata.Root.Metadata.Classes {
+	classes := make(map[int]*ClassMetadata, len(metadata.Root.Metadata.Classes))
+	for i := range metadata.Root.Metadata.Classes {
+		class := &metadata.Root.Metadata.Classes[i]
 		var numConstants int
 		for _, field := range class.Fields {
 			if field.ConstantPool {
diff --git a/parser/event_types.go b/parser/event_types.go
index 0429009..2db7991 100644
--- a/parser/event_types.go
+++ b/parser/event_types.go
@@ -123,7 +123,7 @@ func (ar *ActiveRecording) parseField(r reader.Reader, name string, p ParseResol
 	return err
 }
 
-func (ar *ActiveRecording) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ar *ActiveRecording) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ar.parseField)
 }
 
@@ -154,7 +154,7 @@ func (as *ActiveSetting) parseField(r reader.Reader, name string, p ParseResolva
 	return err
 }
 
-func (as *ActiveSetting) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (as *ActiveSetting) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, as.parseField)
 }
 
@@ -179,7 +179,7 @@ func (bf *BooleanFlag) parseField(r reader.Reader, name string, p ParseResolvabl
 	return err
 }
 
-func (bf *BooleanFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (bf *BooleanFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, bf.parseField)
 }
 
@@ -210,7 +210,7 @@ func (ci *CPUInformation) parseField(r reader.Reader, name string, p ParseResolv
 	return err
 }
 
-func (ci *CPUInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ci *CPUInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ci.parseField)
 }
 
@@ -235,7 +235,7 @@ func (cl *CPULoad) parseField(r reader.Reader, name string, p ParseResolvable) (
 	return err
 }
 
-func (cl *CPULoad) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (cl *CPULoad) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, cl.parseField)
 }
 
@@ -263,7 +263,7 @@ func (ctsc *CPUTimeStampCounter) parseField(r reader.Reader, name string, p Pars
 	return err
 }
 
-func (ctsc *CPUTimeStampCounter) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ctsc *CPUTimeStampCounter) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ctsc.parseField)
 }
 
@@ -324,7 +324,7 @@ func (cls *ClassLoaderStatistics) parseField(r reader.Reader, name string, p Par
 	return err
 }
 
-func (cls *ClassLoaderStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (cls *ClassLoaderStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, cls.parseField)
 }
 
@@ -346,7 +346,7 @@ func (cls *ClassLoadingStatistics) parseField(r reader.Reader, name string, p Pa
 	return err
 }
 
-func (cls *ClassLoadingStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (cls *ClassLoadingStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, cls.parseField)
 }
 
@@ -389,7 +389,7 @@ func (ccc *CodeCacheConfiguration) parseField(r reader.Reader, name string, p Pa
 	return err
 }
 
-func (ccc *CodeCacheConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ccc *CodeCacheConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ccc.parseField)
 }
 
@@ -429,7 +429,7 @@ func (ccs *CodeCacheStatistics) parseField(r reader.Reader, name string, p Parse
 	return err
 }
 
-func (ccs *CodeCacheStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ccs *CodeCacheStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ccs.parseField)
 }
 
@@ -454,7 +454,7 @@ func (csc *CodeSweeperConfiguration) parseField(r reader.Reader, name string, p
 	return err
 }
 
-func (csc *CodeSweeperConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (csc *CodeSweeperConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, csc.parseField)
 }
 
@@ -485,7 +485,7 @@ func (css *CodeSweeperStatistics) parseField(r reader.Reader, name string, p Par
 	return err
 }
 
-func (css *CodeSweeperStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (css *CodeSweeperStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, css.parseField)
 }
 
@@ -507,7 +507,7 @@ func (cc *CompilerConfiguration) parseField(r reader.Reader, name string, p Pars
 	return err
 }
 
-func (cc *CompilerConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (cc *CompilerConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, cc.parseField)
 }
 
@@ -556,7 +556,7 @@ func (cs *CompilerStatistics) parseField(r reader.Reader, name string, p ParseRe
 	return err
 }
 
-func (cs *CompilerStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (cs *CompilerStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, cs.parseField)
 }
 
@@ -581,7 +581,7 @@ func (df *DoubleFlag) parseField(r reader.Reader, name string, p ParseResolvable
 	return err
 }
 
-func (df *DoubleFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (df *DoubleFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, df.parseField)
 }
 
@@ -609,7 +609,7 @@ func (es *ExceptionStatistics) parseField(r reader.Reader, name string, p ParseR
 	return err
 }
 
-func (es *ExceptionStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (es *ExceptionStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, es.parseField)
 }
 
@@ -637,7 +637,7 @@ func (es *ExecutionSample) parseField(r reader.Reader, name string, p ParseResol
 	return err
 }
 
-func (es *ExecutionSample) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (es *ExecutionSample) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, es.parseField)
 }
 
@@ -680,7 +680,7 @@ func (gc *GCConfiguration) parseField(r reader.Reader, name string, p ParseResol
 	return err
 }
 
-func (gc *GCConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (gc *GCConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, gc.parseField)
 }
 
@@ -717,7 +717,7 @@ func (ghc *GCHeapConfiguration) parseField(r reader.Reader, name string, p Parse
 	return err
 }
 
-func (ghc *GCHeapConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ghc *GCHeapConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ghc.parseField)
 }
 
@@ -739,7 +739,7 @@ func (gcs *GCSurvivorConfiguration) parseField(r reader.Reader, name string, p P
 	return err
 }
 
-func (gsc *GCSurvivorConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (gsc *GCSurvivorConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, gsc.parseField)
 }
 
@@ -764,7 +764,7 @@ func (gtc *GCTLABConfiguration) parseField(r reader.Reader, name string, p Parse
 	return err
 }
 
-func (gtc *GCTLABConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (gtc *GCTLABConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, gtc.parseField)
 }
 
@@ -786,7 +786,7 @@ func (iev *InitialEnvironmentVariable) parseField(r reader.Reader, name string,
 	return err
 }
 
-func (iev *InitialEnvironmentVariable) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (iev *InitialEnvironmentVariable) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, iev.parseField)
 }
 
@@ -808,7 +808,7 @@ func (isp *InitialSystemProperty) parseField(r reader.Reader, name string, p Par
 	return err
 }
 
-func (isp *InitialSystemProperty) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (isp *InitialSystemProperty) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, isp.parseField)
 }
 
@@ -833,7 +833,7 @@ func (f *IntFlag) parseField(r reader.Reader, name string, p ParseResolvable) (e
 	return err
 }
 
-func (f *IntFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (f *IntFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, f.parseField)
 }
 
@@ -870,7 +870,7 @@ func (jme *JavaMonitorEnter) parseField(r reader.Reader, name string, p ParseRes
 	return err
 }
 
-func (jme *JavaMonitorEnter) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (jme *JavaMonitorEnter) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, jme.parseField)
 }
 
@@ -910,7 +910,7 @@ func (jmw *JavaMonitorWait) parseField(r reader.Reader, name string, p ParseReso
 	return err
 }
 
-func (jmw *JavaMonitorWait) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (jmw *JavaMonitorWait) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, jmw.parseField)
 }
 
@@ -938,7 +938,7 @@ func (jts *JavaThreadStatistics) parseField(r reader.Reader, name string, p Pars
 	return err
 }
 
-func (jts *JavaThreadStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (jts *JavaThreadStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, jts.parseField)
 }
 
@@ -975,7 +975,7 @@ func (ji *JVMInformation) parseField(r reader.Reader, name string, p ParseResolv
 	return err
 }
 
-func (ji *JVMInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ji *JVMInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ji.parseField)
 }
 
@@ -1018,7 +1018,7 @@ func (lcts *LoaderConstraintsTableStatistics) parseField(r reader.Reader, name s
 	return err
 }
 
-func (lcts *LoaderConstraintsTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (lcts *LoaderConstraintsTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, lcts.parseField)
 }
 
@@ -1043,7 +1043,7 @@ func (lf *LongFlag) parseField(r reader.Reader, name string, p ParseResolvable)
 	return err
 }
 
-func (lf *LongFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (lf *LongFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, lf.parseField)
 }
 
@@ -1065,7 +1065,7 @@ func (me *ModuleExport) parseField(r reader.Reader, name string, p ParseResolvab
 	return err
 }
 
-func (me *ModuleExport) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (me *ModuleExport) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, me.parseField)
 }
 
@@ -1087,7 +1087,7 @@ func (mr *ModuleRequire) parseField(r reader.Reader, name string, p ParseResolva
 	return err
 }
 
-func (mr *ModuleRequire) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (mr *ModuleRequire) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, mr.parseField)
 }
 
@@ -1112,7 +1112,7 @@ func (nl *NativeLibrary) parseField(r reader.Reader, name string, p ParseResolva
 	return err
 }
 
-func (nl *NativeLibrary) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (nl *NativeLibrary) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, nl.parseField)
 }
 
@@ -1137,7 +1137,7 @@ func (nu *NetworkUtilization) parseField(r reader.Reader, name string, p ParseRe
 	return err
 }
 
-func (nu *NetworkUtilization) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (nu *NetworkUtilization) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, nu.parseField)
 }
 
@@ -1172,7 +1172,7 @@ func (oa *ObjectAllocationInNewTLAB) parseField(r reader.Reader, name string, p
 	return err
 }
 
-func (oa *ObjectAllocationInNewTLAB) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (oa *ObjectAllocationInNewTLAB) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, oa.parseField)
 }
 
@@ -1203,7 +1203,7 @@ func (oa *ObjectAllocationOutsideTLAB) parseField(r reader.Reader, name string,
 	return err
 }
 
-func (oa *ObjectAllocationOutsideTLAB) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (oa *ObjectAllocationOutsideTLAB) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, oa.parseField)
 }
 
@@ -1222,7 +1222,7 @@ func (os *OSInformation) parseField(r reader.Reader, name string, p ParseResolva
 	return err
 }
 
-func (os *OSInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (os *OSInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, os.parseField)
 }
 
@@ -1244,7 +1244,7 @@ func (pm *PhysicalMemory) parseField(r reader.Reader, name string, p ParseResolv
 	return err
 }
 
-func (pm *PhysicalMemory) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (pm *PhysicalMemory) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, pm.parseField)
 }
 
@@ -1287,7 +1287,7 @@ func (pts *PlaceholderTableStatistics) parseField(r reader.Reader, name string,
 	return err
 }
 
-func (pts *PlaceholderTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (pts *PlaceholderTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, pts.parseField)
 }
 
@@ -1330,7 +1330,7 @@ func (pdcts *ProtectionDomainCacheTableStatistics) parseField(r reader.Reader, n
 	return err
 }
 
-func (pdcts *ProtectionDomainCacheTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (pdcts *ProtectionDomainCacheTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, pdcts.parseField)
 }
 
@@ -1355,7 +1355,7 @@ func (sf *StringFlag) parseField(r reader.Reader, name string, p ParseResolvable
 	return err
 }
 
-func (sf *StringFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (sf *StringFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, sf.parseField)
 }
 
@@ -1398,7 +1398,7 @@ func (sts *StringTableStatistics) parseField(r reader.Reader, name string, p Par
 	return err
 }
 
-func (sts *StringTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (sts *StringTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, sts.parseField)
 }
 
@@ -1441,7 +1441,7 @@ func (sts *SymbolTableStatistics) parseField(r reader.Reader, name string, p Par
 	return err
 }
 
-func (sts *SymbolTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (sts *SymbolTableStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, sts.parseField)
 }
 
@@ -1463,7 +1463,7 @@ func (sp *SystemProcess) parseField(r reader.Reader, name string, p ParseResolva
 	return err
 }
 
-func (sp *SystemProcess) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (sp *SystemProcess) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, sp.parseField)
 }
 
@@ -1485,7 +1485,7 @@ func (tas *ThreadAllocationStatistics) parseField(r reader.Reader, name string,
 	return err
 }
 
-func (tas *ThreadAllocationStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (tas *ThreadAllocationStatistics) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, tas.parseField)
 }
 
@@ -1510,7 +1510,7 @@ func (tcl *ThreadCPULoad) parseField(r reader.Reader, name string, p ParseResolv
 	return err
 }
 
-func (tcl *ThreadCPULoad) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (tcl *ThreadCPULoad) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, tcl.parseField)
 }
 
@@ -1529,7 +1529,7 @@ func (tcsr *ThreadContextSwitchRate) parseField(r reader.Reader, name string, p
 	return err
 }
 
-func (tcsr *ThreadContextSwitchRate) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (tcsr *ThreadContextSwitchRate) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, tcsr.parseField)
 }
 
@@ -1548,7 +1548,7 @@ func (td *ThreadDump) parseField(r reader.Reader, name string, p ParseResolvable
 	return err
 }
 
-func (td *ThreadDump) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (td *ThreadDump) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, td.parseField)
 }
 
@@ -1588,7 +1588,7 @@ func (tp *ThreadPark) parseField(r reader.Reader, name string, p ParseResolvable
 	return err
 }
 
-func (tp *ThreadPark) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (tp *ThreadPark) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, tp.parseField)
 }
 
@@ -1616,7 +1616,7 @@ func (ts *ThreadStart) parseField(r reader.Reader, name string, p ParseResolvabl
 	return err
 }
 
-func (ts *ThreadStart) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ts *ThreadStart) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ts.parseField)
 }
 
@@ -1641,7 +1641,7 @@ func (uif *UnsignedIntFlag) parseField(r reader.Reader, name string, p ParseReso
 	return err
 }
 
-func (uif *UnsignedIntFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (uif *UnsignedIntFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, uif.parseField)
 }
 
@@ -1666,7 +1666,7 @@ func (ulf *UnsignedLongFlag) parseField(r reader.Reader, name string, p ParseRes
 	return err
 }
 
-func (ulf *UnsignedLongFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ulf *UnsignedLongFlag) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ulf.parseField)
 }
 
@@ -1685,7 +1685,7 @@ func (vi *VirtualizationInformation) parseField(r reader.Reader, name string, p
 	return err
 }
 
-func (vi *VirtualizationInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (vi *VirtualizationInformation) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, vi.parseField)
 }
 
@@ -1710,7 +1710,7 @@ func (ygc *YoungGenerationConfiguration) parseField(r reader.Reader, name string
 	return err
 }
 
-func (ygc *YoungGenerationConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ygc *YoungGenerationConfiguration) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ygc.parseField)
 }
 
@@ -1720,7 +1720,7 @@ func (ue *UnsupportedEvent) parseField(r reader.Reader, name string, p ParseReso
 	return nil
 }
 
-func (ue *UnsupportedEvent) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ue *UnsupportedEvent) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, ue.parseField)
 }
 
@@ -1751,6 +1751,6 @@ func (oa *LiveObject) parseField(r reader.Reader, name string, p ParseResolvable
 	return err
 }
 
-func (oa *LiveObject) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (oa *LiveObject) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, nil, true, oa.parseField)
 }
diff --git a/parser/types.go b/parser/types.go
index 9861707..2f84d5b 100644
--- a/parser/types.go
+++ b/parser/types.go
@@ -61,7 +61,7 @@ func ParseClass(r reader.Reader, classes ClassMap, cpools PoolMap, classID int64
 }
 
 type Parseable interface {
-	Parse(reader.Reader, ClassMap, PoolMap, ClassMetadata) error
+	Parse(reader.Reader, ClassMap, PoolMap, *ClassMetadata) error
 }
 
 type Resolvable interface {
@@ -88,7 +88,7 @@ func appendConstant(r reader.Reader, constants *[]constant, name string, class i
 	return nil
 }
 
-func parseFields(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata, constants *[]constant, resolved bool, cb func(reader.Reader, string, ParseResolvable) error) error {
+func parseFields(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata, constants *[]constant, resolved bool, cb func(reader.Reader, string, ParseResolvable) error) error {
 	if constants != nil && cap(*constants) == 0 && class.numConstants != 0 && !resolved {
 		*constants = make([]constant, 0, class.numConstants)
 	}
@@ -199,7 +199,7 @@ func resolveConstants(classes ClassMap, cpools PoolMap, constants *[]constant, r
 
 type Boolean bool
 
-func (b *Boolean) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (b *Boolean) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	// TODO: Assert simpletype, no fields, etc.
 	x, err := r.Boolean()
 	*b = Boolean(x)
@@ -214,7 +214,7 @@ func toBoolean(r reader.Reader) (bool, error) {
 
 type Byte int8
 
-func (b *Byte) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (b *Byte) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	x, err := r.Byte()
 	*b = Byte(x)
 	return err
@@ -228,7 +228,7 @@ func toByte(r reader.Reader) (int8, error) {
 
 type Double float64
 
-func (d *Double) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (d *Double) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	x, err := r.Double()
 	*d = Double(x)
 	return err
@@ -242,7 +242,7 @@ func toDouble(r reader.Reader) (float64, error) {
 
 type Float float32
 
-func (f *Float) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (f *Float) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	x, err := r.Float()
 	*f = Float(x)
 	return err
@@ -256,7 +256,7 @@ func toFloat(r reader.Reader) (float32, error) {
 
 type Int int32
 
-func (i *Int) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (i *Int) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	x, err := r.VarInt()
 	*i = Int(x)
 	return err
@@ -270,7 +270,7 @@ func toInt(r reader.Reader) (int32, error) {
 
 type Long int64
 
-func (l *Long) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (l *Long) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	x, err := r.VarLong()
 	*l = Long(x)
 	return err
@@ -284,7 +284,7 @@ func toLong(r reader.Reader) (int64, error) {
 
 type Short int16
 
-func (s *Short) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (s *Short) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	x, err := r.VarShort()
 	*s = Short(x)
 	return err
@@ -319,7 +319,7 @@ func (c *Class) parseField(r reader.Reader, name string, p ParseResolvable) (err
 	return err
 }
 
-func (c *Class) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (c *Class) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &c.constants, c.resolved, c.parseField)
 }
 
@@ -354,7 +354,7 @@ func toClass(p ParseResolvable) (*Class, error) {
 
 type String string
 
-func (s *String) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ ClassMetadata) error {
+func (s *String) Parse(r reader.Reader, _ ClassMap, _ PoolMap, _ *ClassMetadata) error {
 	x, err := r.String()
 	*s = String(x)
 	return err
@@ -389,7 +389,7 @@ func (t *Thread) parseField(r reader.Reader, name string, p ParseResolvable) (er
 	return err
 }
 
-func (t *Thread) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (t *Thread) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &t.constants, t.resolved, t.parseField)
 }
 
@@ -422,7 +422,7 @@ func (cl *ClassLoader) parseField(r reader.Reader, name string, p ParseResolvabl
 	return err
 }
 
-func (cl *ClassLoader) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (cl *ClassLoader) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &cl.constants, cl.resolved, cl.parseField)
 }
 
@@ -464,7 +464,7 @@ func (cbt *CodeBlobType) parseField(r reader.Reader, name string, p ParseResolva
 	return err
 }
 
-func (cbt *CodeBlobType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (cbt *CodeBlobType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &cbt.constants, cbt.resolved, cbt.parseField)
 }
 
@@ -494,7 +494,7 @@ func (fvo *FlagValueOrigin) parseField(r reader.Reader, name string, p ParseReso
 	return err
 }
 
-func (fvo *FlagValueOrigin) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (fvo *FlagValueOrigin) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &fvo.constants, fvo.resolved, fvo.parseField)
 }
 
@@ -524,7 +524,7 @@ func (ft *FrameType) parseField(r reader.Reader, name string, p ParseResolvable)
 	return err
 }
 
-func (ft *FrameType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ft *FrameType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &ft.constants, ft.resolved, ft.parseField)
 }
 
@@ -554,7 +554,7 @@ func (gyt *G1YCType) parseField(r reader.Reader, name string, p ParseResolvable)
 	return err
 }
 
-func (gyt *G1YCType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (gyt *G1YCType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &gyt.constants, gyt.resolved, gyt.parseField)
 }
 
@@ -584,7 +584,7 @@ func (gn *GCName) parseField(r reader.Reader, name string, p ParseResolvable) (e
 	return err
 }
 
-func (gn *GCName) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (gn *GCName) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &gn.constants, gn.resolved, gn.parseField)
 }
 
@@ -626,7 +626,7 @@ func (m *Method) parseField(r reader.Reader, name string, p ParseResolvable) (er
 	return err
 }
 
-func (m *Method) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (m *Method) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &m.constants, m.resolved, m.parseField)
 }
 
@@ -681,7 +681,7 @@ func (m *Module) parseField(r reader.Reader, name string, p ParseResolvable) (er
 	return err
 }
 
-func (m *Module) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (m *Module) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &m.constants, m.resolved, m.parseField)
 }
 
@@ -732,7 +732,7 @@ func (nom *NarrowOopMode) parseField(r reader.Reader, name string, p ParseResolv
 	return err
 }
 
-func (nom *NarrowOopMode) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (nom *NarrowOopMode) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &nom.constants, nom.resolved, nom.parseField)
 }
 
@@ -762,7 +762,7 @@ func (nim *NetworkInterfaceName) parseField(r reader.Reader, name string, p Pars
 	return err
 }
 
-func (nim *NetworkInterfaceName) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (nim *NetworkInterfaceName) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &nim.constants, nim.resolved, nim.parseField)
 }
 
@@ -792,7 +792,7 @@ func (pkg *Package) parseField(r reader.Reader, name string, p ParseResolvable)
 	return err
 }
 
-func (p *Package) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (p *Package) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &p.constants, p.resolved, p.parseField)
 }
 
@@ -838,7 +838,7 @@ func (sf *StackFrame) parseField(r reader.Reader, name string, p ParseResolvable
 	return err
 }
 
-func (sf *StackFrame) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (sf *StackFrame) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &sf.constants, sf.resolved, sf.parseField)
 }
 
@@ -894,7 +894,7 @@ func (st *StackTrace) parseField(r reader.Reader, name string, p ParseResolvable
 	return err
 }
 
-func (st *StackTrace) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (st *StackTrace) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &st.constants, st.resolved, st.parseField)
 }
 
@@ -932,7 +932,7 @@ func (s *Symbol) parseField(r reader.Reader, name string, p ParseResolvable) (er
 	return err
 }
 
-func (s *Symbol) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (s *Symbol) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &s.constants, s.resolved, s.parseField)
 }
 
@@ -963,7 +963,7 @@ func (ts *ThreadState) parseField(r reader.Reader, name string, p ParseResolvabl
 	return err
 }
 
-func (ts *ThreadState) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ts *ThreadState) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &ts.constants, ts.resolved, ts.parseField)
 }
 
@@ -990,7 +990,7 @@ func (ut *UnsupportedType) parseField(r reader.Reader, name string, p ParseResol
 	return nil
 }
 
-func (ut *UnsupportedType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class ClassMetadata) error {
+func (ut *UnsupportedType) Parse(r reader.Reader, classes ClassMap, cpools PoolMap, class *ClassMetadata) error {
 	return parseFields(r, classes, cpools, class, &ut.constants, ut.resolved, ut.parseField)
 }