Update to tengo v2 (#976)

1 files changed, 0 insertions, 129 deletions

diff --git a/vendor/github.com/d5/tengo/compiler/bytecode_optimize.go b/vendor/github.com/d5/tengo/compiler/bytecode_optimize.go
deleted file mode 100644
index 9526de2e..00000000
--- a/vendor/github.com/d5/tengo/compiler/bytecode_optimize.go
+++ /dev/null
@@ -1,129 +0,0 @@
-package compiler
-
-import (
-	"fmt"
-
-	"github.com/d5/tengo/objects"
-)
-
-// RemoveDuplicates finds and remove the duplicate values in Constants.
-// Note this function mutates Bytecode.
-func (b *Bytecode) RemoveDuplicates() {
-	var deduped []objects.Object
-
-	indexMap := make(map[int]int) // mapping from old constant index to new index
-	ints := make(map[int64]int)
-	strings := make(map[string]int)
-	floats := make(map[float64]int)
-	chars := make(map[rune]int)
-	immutableMaps := make(map[string]int) // for modules
-
-	for curIdx, c := range b.Constants {
-		switch c := c.(type) {
-		case *objects.CompiledFunction:
-			// add to deduped list
-			indexMap[curIdx] = len(deduped)
-			deduped = append(deduped, c)
-		case *objects.ImmutableMap:
-			modName := moduleName(c)
-			newIdx, ok := immutableMaps[modName]
-			if modName != "" && ok {
-				indexMap[curIdx] = newIdx
-			} else {
-				newIdx = len(deduped)
-				immutableMaps[modName] = newIdx
-				indexMap[curIdx] = newIdx
-				deduped = append(deduped, c)
-			}
-		case *objects.Int:
-			if newIdx, ok := ints[c.Value]; ok {
-				indexMap[curIdx] = newIdx
-			} else {
-				newIdx = len(deduped)
-				ints[c.Value] = newIdx
-				indexMap[curIdx] = newIdx
-				deduped = append(deduped, c)
-			}
-		case *objects.String:
-			if newIdx, ok := strings[c.Value]; ok {
-				indexMap[curIdx] = newIdx
-			} else {
-				newIdx = len(deduped)
-				strings[c.Value] = newIdx
-				indexMap[curIdx] = newIdx
-				deduped = append(deduped, c)
-			}
-		case *objects.Float:
-			if newIdx, ok := floats[c.Value]; ok {
-				indexMap[curIdx] = newIdx
-			} else {
-				newIdx = len(deduped)
-				floats[c.Value] = newIdx
-				indexMap[curIdx] = newIdx
-				deduped = append(deduped, c)
-			}
-		case *objects.Char:
-			if newIdx, ok := chars[c.Value]; ok {
-				indexMap[curIdx] = newIdx
-			} else {
-				newIdx = len(deduped)
-				chars[c.Value] = newIdx
-				indexMap[curIdx] = newIdx
-				deduped = append(deduped, c)
-			}
-		default:
-			panic(fmt.Errorf("unsupported top-level constant type: %s", c.TypeName()))
-		}
-	}
-
-	// replace with de-duplicated constants
-	b.Constants = deduped
-
-	// update CONST instructions with new indexes
-	// main function
-	updateConstIndexes(b.MainFunction.Instructions, indexMap)
-	// other compiled functions in constants
-	for _, c := range b.Constants {
-		switch c := c.(type) {
-		case *objects.CompiledFunction:
-			updateConstIndexes(c.Instructions, indexMap)
-		}
-	}
-}
-
-func updateConstIndexes(insts []byte, indexMap map[int]int) {
-	i := 0
-	for i < len(insts) {
-		op := insts[i]
-		numOperands := OpcodeOperands[op]
-		_, read := ReadOperands(numOperands, insts[i+1:])
-
-		switch op {
-		case OpConstant:
-			curIdx := int(insts[i+2]) | int(insts[i+1])<<8
-			newIdx, ok := indexMap[curIdx]
-			if !ok {
-				panic(fmt.Errorf("constant index not found: %d", curIdx))
-			}
-			copy(insts[i:], MakeInstruction(op, newIdx))
-		case OpClosure:
-			curIdx := int(insts[i+2]) | int(insts[i+1])<<8
-			numFree := int(insts[i+3])
-			newIdx, ok := indexMap[curIdx]
-			if !ok {
-				panic(fmt.Errorf("constant index not found: %d", curIdx))
-			}
-			copy(insts[i:], MakeInstruction(op, newIdx, numFree))
-		}
-
-		i += 1 + read
-	}
-}
-
-func moduleName(mod *objects.ImmutableMap) string {
-	if modName, ok := mod.Value["__module_name__"].(*objects.String); ok {
-		return modName.Value
-	}
-
-	return ""
-}