renamer

Documentation

Index

• func AssignNestedScopeSlots(moduleScope *js_ast.Scope, symbols []ast.Symbol) (slotCounts ast.SlotCounts)
• func ComputeReservedNames(moduleScopes []*js_ast.Scope, symbols ast.SymbolMap) map[string]uint32
• type ExportRenamer
  • func (r *ExportRenamer) NextMinifiedName() string
  • func (r *ExportRenamer) NextRenamedName(name string) string
• type MinifyRenamer
  • func NewMinifyRenamer(symbols ast.SymbolMap, firstTopLevelSlots ast.SlotCounts, ...) *MinifyRenamer
  • func (r *MinifyRenamer) AccumulateSymbolCount(topLevelSymbols *StableSymbolCountArray, ref ast.Ref, count uint32, ...)
  • func (r *MinifyRenamer) AccumulateSymbolUseCounts(topLevelSymbols *StableSymbolCountArray, ...)
  • func (r *MinifyRenamer) AllocateTopLevelSymbolSlots(topLevelSymbols StableSymbolCountArray)
  • func (r *MinifyRenamer) AssignNamesByFrequency(minifier *ast.NameMinifier)
  • func (r *MinifyRenamer) NameForSymbol(ref ast.Ref) string
• type NumberRenamer
  • func NewNumberRenamer(symbols ast.SymbolMap, reservedNames map[string]uint32) *NumberRenamer
  • func (r *NumberRenamer) AddTopLevelSymbol(ref ast.Ref)
  • func (r *NumberRenamer) AssignNamesByScope(nestedScopes map[uint32][]*js_ast.Scope)
  • func (r *NumberRenamer) NameForSymbol(ref ast.Ref) string
• type Renamer
  • func NewNoOpRenamer(symbols ast.SymbolMap) Renamer
• type StableSymbolCount
• type StableSymbolCountArray
  • func (a StableSymbolCountArray) Len() int
  • func (a StableSymbolCountArray) Less(i int, j int) bool
  • func (a StableSymbolCountArray) Swap(i int, j int)

Functions

func AssignNestedScopeSlots

func AssignNestedScopeSlots(moduleScope *js_ast.Scope, symbols []ast.Symbol) (slotCounts ast.SlotCounts)

Returns the number of nested slots

func ComputeReservedNames

func ComputeReservedNames(moduleScopes []*js_ast.Scope, symbols ast.SymbolMap) map[string]uint32

Types

type ExportRenamer

type ExportRenamer struct {
	// contains filtered or unexported fields
}

func (*ExportRenamer) NextMinifiedName

func (r *ExportRenamer) NextMinifiedName() string

func (*ExportRenamer) NextRenamedName

func (r *ExportRenamer) NextRenamedName(name string) string

type MinifyRenamer

type MinifyRenamer struct {
	// contains filtered or unexported fields
}

func NewMinifyRenamer

func NewMinifyRenamer(symbols ast.SymbolMap, firstTopLevelSlots ast.SlotCounts, reservedNames map[string]uint32) *MinifyRenamer

func (*MinifyRenamer) AccumulateSymbolCount

func (r *MinifyRenamer) AccumulateSymbolCount(
	topLevelSymbols *StableSymbolCountArray,
	ref ast.Ref,
	count uint32,
	stableSourceIndices []uint32,
)

func (*MinifyRenamer) AccumulateSymbolUseCounts

func (r *MinifyRenamer) AccumulateSymbolUseCounts(
	topLevelSymbols *StableSymbolCountArray,
	symbolUses map[ast.Ref]js_ast.SymbolUse,
	stableSourceIndices []uint32,
)

func (*MinifyRenamer) AllocateTopLevelSymbolSlots

func (r *MinifyRenamer) AllocateTopLevelSymbolSlots(topLevelSymbols StableSymbolCountArray)

The parallel part of the symbol count accumulation algorithm above processes nested symbols and generates an array of top-level symbols to process later. After the parallel part has finished, that array of top-level symbols is passed to this function which processes them in serial.

func (*MinifyRenamer) AssignNamesByFrequency

func (r *MinifyRenamer) AssignNamesByFrequency(minifier *ast.NameMinifier)

func (*MinifyRenamer) NameForSymbol

func (r *MinifyRenamer) NameForSymbol(ref ast.Ref) string

type NumberRenamer

type NumberRenamer struct {
	// contains filtered or unexported fields
}

func NewNumberRenamer

func NewNumberRenamer(symbols ast.SymbolMap, reservedNames map[string]uint32) *NumberRenamer

func (*NumberRenamer) AddTopLevelSymbol

func (r *NumberRenamer) AddTopLevelSymbol(ref ast.Ref)

func (*NumberRenamer) AssignNamesByScope

func (r *NumberRenamer) AssignNamesByScope(nestedScopes map[uint32][]*js_ast.Scope)

func (*NumberRenamer) NameForSymbol

func (r *NumberRenamer) NameForSymbol(ref ast.Ref) string

type Renamer

type Renamer interface {
	NameForSymbol(ref ast.Ref) string
}

func NewNoOpRenamer

func NewNoOpRenamer(symbols ast.SymbolMap) Renamer

type StableSymbolCount

type StableSymbolCount struct {
	StableSourceIndex uint32
	Ref               ast.Ref
	Count             uint32
}

The InnerIndex should be stable because the parser for a single file is single-threaded and deterministically assigns out InnerIndex values sequentially. But the SourceIndex should be unstable because the main thread assigns out source index values sequentially to newly-discovered dependencies in a multi-threaded producer/consumer relationship. So instead we use the index of the source in the DFS order over all entry points for stability.

type StableSymbolCountArray

type StableSymbolCountArray []StableSymbolCount

This type is just so we can use Go's native sort function

func (StableSymbolCountArray) Len

func (a StableSymbolCountArray) Len() int

func (StableSymbolCountArray) Less

func (a StableSymbolCountArray) Less(i int, j int) bool

func (StableSymbolCountArray) Swap

func (a StableSymbolCountArray) Swap(i int, j int)