1package wasm
 2
 3import "fmt"
 4
 5// SectionElementCount returns the count of elements in a given section ID
 6//
 7// For example...
 8// * SectionIDType returns the count of FunctionType
 9// * SectionIDCustom returns the count of CustomSections plus one if NameSection is present
10// * SectionIDHostFunction returns the count of HostFunctionSection
11// * SectionIDExport returns the count of unique export names
12func (m *Module) SectionElementCount(sectionID SectionID) uint32 { // element as in vector elements!
13	switch sectionID {
14	case SectionIDCustom:
15		numCustomSections := uint32(len(m.CustomSections))
16		if m.NameSection != nil {
17			numCustomSections++
18		}
19		return numCustomSections
20	case SectionIDType:
21		return uint32(len(m.TypeSection))
22	case SectionIDImport:
23		return uint32(len(m.ImportSection))
24	case SectionIDFunction:
25		return uint32(len(m.FunctionSection))
26	case SectionIDTable:
27		return uint32(len(m.TableSection))
28	case SectionIDMemory:
29		if m.MemorySection != nil {
30			return 1
31		}
32		return 0
33	case SectionIDGlobal:
34		return uint32(len(m.GlobalSection))
35	case SectionIDExport:
36		return uint32(len(m.ExportSection))
37	case SectionIDStart:
38		if m.StartSection != nil {
39			return 1
40		}
41		return 0
42	case SectionIDElement:
43		return uint32(len(m.ElementSection))
44	case SectionIDCode:
45		return uint32(len(m.CodeSection))
46	case SectionIDData:
47		return uint32(len(m.DataSection))
48	default:
49		panic(fmt.Errorf("BUG: unknown section: %d", sectionID))
50	}
51}