Update to tengo v2 (#976)

1 files changed, 0 insertions, 133 deletions

diff --git a/vendor/github.com/d5/tengo/compiler/compiler_assign.go b/vendor/github.com/d5/tengo/compiler/compiler_assign.go
deleted file mode 100644
index 59296f6f..00000000
--- a/vendor/github.com/d5/tengo/compiler/compiler_assign.go
+++ /dev/null
@@ -1,133 +0,0 @@
-package compiler
-
-import (
-	"fmt"
-
-	"github.com/d5/tengo/compiler/ast"
-	"github.com/d5/tengo/compiler/token"
-)
-
-func (c *Compiler) compileAssign(node ast.Node, lhs, rhs []ast.Expr, op token.Token) error {
-	numLHS, numRHS := len(lhs), len(rhs)
-	if numLHS > 1 || numRHS > 1 {
-		return c.errorf(node, "tuple assignment not allowed")
-	}
-
-	// resolve and compile left-hand side
-	ident, selectors := resolveAssignLHS(lhs[0])
-	numSel := len(selectors)
-
-	if op == token.Define && numSel > 0 {
-		// using selector on new variable does not make sense
-		return c.errorf(node, "operator ':=' not allowed with selector")
-	}
-
-	symbol, depth, exists := c.symbolTable.Resolve(ident)
-	if op == token.Define {
-		if depth == 0 && exists {
-			return c.errorf(node, "'%s' redeclared in this block", ident)
-		}
-
-		symbol = c.symbolTable.Define(ident)
-	} else {
-		if !exists {
-			return c.errorf(node, "unresolved reference '%s'", ident)
-		}
-	}
-
-	// +=, -=, *=, /=
-	if op != token.Assign && op != token.Define {
-		if err := c.Compile(lhs[0]); err != nil {
-			return err
-		}
-	}
-
-	// compile RHSs
-	for _, expr := range rhs {
-		if err := c.Compile(expr); err != nil {
-			return err
-		}
-	}
-
-	switch op {
-	case token.AddAssign:
-		c.emit(node, OpBinaryOp, int(token.Add))
-	case token.SubAssign:
-		c.emit(node, OpBinaryOp, int(token.Sub))
-	case token.MulAssign:
-		c.emit(node, OpBinaryOp, int(token.Mul))
-	case token.QuoAssign:
-		c.emit(node, OpBinaryOp, int(token.Quo))
-	case token.RemAssign:
-		c.emit(node, OpBinaryOp, int(token.Rem))
-	case token.AndAssign:
-		c.emit(node, OpBinaryOp, int(token.And))
-	case token.OrAssign:
-		c.emit(node, OpBinaryOp, int(token.Or))
-	case token.AndNotAssign:
-		c.emit(node, OpBinaryOp, int(token.AndNot))
-	case token.XorAssign:
-		c.emit(node, OpBinaryOp, int(token.Xor))
-	case token.ShlAssign:
-		c.emit(node, OpBinaryOp, int(token.Shl))
-	case token.ShrAssign:
-		c.emit(node, OpBinaryOp, int(token.Shr))
-	}
-
-	// compile selector expressions (right to left)
-	for i := numSel - 1; i >= 0; i-- {
-		if err := c.Compile(selectors[i]); err != nil {
-			return err
-		}
-	}
-
-	switch symbol.Scope {
-	case ScopeGlobal:
-		if numSel > 0 {
-			c.emit(node, OpSetSelGlobal, symbol.Index, numSel)
-		} else {
-			c.emit(node, OpSetGlobal, symbol.Index)
-		}
-	case ScopeLocal:
-		if numSel > 0 {
-			c.emit(node, OpSetSelLocal, symbol.Index, numSel)
-		} else {
-			if op == token.Define && !symbol.LocalAssigned {
-				c.emit(node, OpDefineLocal, symbol.Index)
-			} else {
-				c.emit(node, OpSetLocal, symbol.Index)
-			}
-		}
-
-		// mark the symbol as local-assigned
-		symbol.LocalAssigned = true
-	case ScopeFree:
-		if numSel > 0 {
-			c.emit(node, OpSetSelFree, symbol.Index, numSel)
-		} else {
-			c.emit(node, OpSetFree, symbol.Index)
-		}
-	default:
-		panic(fmt.Errorf("invalid assignment variable scope: %s", symbol.Scope))
-	}
-
-	return nil
-}
-
-func resolveAssignLHS(expr ast.Expr) (name string, selectors []ast.Expr) {
-	switch term := expr.(type) {
-	case *ast.SelectorExpr:
-		name, selectors = resolveAssignLHS(term.Expr)
-		selectors = append(selectors, term.Sel)
-		return
-
-	case *ast.IndexExpr:
-		name, selectors = resolveAssignLHS(term.Expr)
-		selectors = append(selectors, term.Index)
-
-	case *ast.Ident:
-		name = term.Name
-	}
-
-	return
-}