From 8e80185508a697ddfcfed4a04d3f4e1ac5a330a9 Mon Sep 17 00:00:00 2001
From: Charlie Stanton <charlie@shtanton.xyz>
Date: Mon, 24 Apr 2023 13:16:06 +0100
Subject: WalkItems are now made of Atoms instead of WalkValues, and I have
 rolled my own JSON parser and serialiser

These changes improve performance
---
 main/command.go | 29 +++++++++++++----------------
 1 file changed, 13 insertions(+), 16 deletions(-)

(limited to 'main/command.go')

diff --git a/main/command.go b/main/command.go
index a0ac35e..c7b1aa9 100644
--- a/main/command.go
+++ b/main/command.go
@@ -16,16 +16,7 @@ func (cmd PrintValueCommand) exec(state *ProgramState) {
 		panic("Tried to convert invalid atoms to values")
 	}
 	path := walk.PathFromWalkValues(pathValues)
-	values, err := walk.Compound(state.value)
-	if err != nil {
-		panic("Tried to convert invalid atoms to values")
-	}
-	for _, value := range values {
-		state.out <- walk.WalkItem {
-			Value: value,
-			Path: path,
-		}
-	}
+	state.out.Print(path, state.value)
 }
 
 type SequenceCommand struct {
@@ -39,16 +30,22 @@ func (cmd SequenceCommand) exec(state *ProgramState) {
 
 type NextCommand struct {}
 func (cmd NextCommand) exec(state *ProgramState) {
-	nextItem := <- state.in
-	state.value = walk.Atomise([]walk.WalkValue{nextItem.Value})
-	state.path = walk.Atomise(nextItem.Path.ToWalkValues())
+	nextItem, err := state.in.Read()
+	if err != nil {
+		panic("Missing next value")
+	}
+	state.value = nextItem.Value
+	state.path = nextItem.Path
 }
 
 type AppendNextCommand struct {}
 func (cmd AppendNextCommand) exec(state *ProgramState) {
-	nextItem := <- state.in
-	state.value = append(state.value, walk.Atomise([]walk.WalkValue{nextItem.Value})...)
-	state.path = walk.Atomise(nextItem.Path.ToWalkValues())
+	nextItem, err := state.in.Read()
+	if err != nil {
+		panic("Missing next value")
+	}
+	state.value = append(state.value, nextItem.Value...)
+	state.path = nextItem.Path
 }
 
 type DeleteValueCommand struct {}
-- 
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