Simplified ssa package

src/ssa/Value.go

@@ -1,16 +1,23 @@
 package ssa
 
-import (
-	"git.urbach.dev/cli/q/src/types"
-)
+import "git.urbach.dev/cli/q/src/types"
 
 type Value interface {
-	Debug(bool) string
-	Dependencies() []Value
-	Equals(Value) bool
-	ID() int
-	IsConst() bool
-	SetID(int)
-	String() string
+	// Type returns the data type.
 	Type() types.Type
+
+	// Users returns all values that reference this value as an input.
+	Users() []Value
+
+	// Inputs returns all values that are needed for this value to be calculated.
+	Inputs() []Value
+
+	// Equals returns true if it's equal to the given value.
+	Equals(Value) bool
+
+	// IsConst returns true if the calculation of the value has no side effects.
+	IsConst() bool
+
+	// Strings returns a human-readable form of the value.
+	String() string
 }