Method MemberNode

compiler/compiler.go:682–759

(node *ast.MemberNode)

}

func (c *compiler) MemberNode(node *ast.MemberNode) {
	var env Nature
	if c.config != nil {
		env = c.config.Env
	}

	if ok, index, name := checker.MethodIndex(c.ntCache, env, node); ok {
		c.compile(node.Node)
		c.emit(OpMethod, c.addConstant(&runtime.Method{
			Name:  name,
			Index: index,
		}))
		return
	}
	op := OpFetch
	base := node.Node

	ok, index, nodeName := checker.FieldIndex(c.ntCache, env, node)
	path := []string{nodeName}

	if ok {
		op = OpFetchField
		for !node.Optional {
			if ident, isIdent := base.(*ast.IdentifierNode); isIdent {
				if ok, identIndex, name := checker.FieldIndex(c.ntCache, env, ident); ok {
					index = append(identIndex, index...)
					path = append([]string{name}, path...)
					c.emitLocation(ident.Location(), OpLoadField, c.addConstant(
						&runtime.Field{Index: index, Path: path},
					))
					return
				}
			}

			if member, isMember := base.(*ast.MemberNode); isMember {
				if ok, memberIndex, name := checker.FieldIndex(c.ntCache, env, member); ok {
					index = append(memberIndex, index...)
					path = append([]string{name}, path...)
					node = member
					base = member.Node
				} else {
					break
				}
			} else {
				break
			}
		}
	}

	c.compile(base)
	// If the field is optional, we need to jump over the fetch operation.
	// If no ChainNode (none c.chains) is used, do not compile the optional fetch.
	if node.Optional && len(c.chains) > 0 {
		ph := c.emit(OpJumpIfNil, placeholder)
		c.chains[len(c.chains)-1] = append(c.chains[len(c.chains)-1], ph)
	}

	if op == OpFetch {