updated variable name

Author: noahsaso

src/formulas/formulas/contract/external/cwVesting.ts

@@ -39,7 +39,7 @@ export const vested: ContractFormula = makeSimpleContractFormula<
 
     // Convert to seconds.
     const tSeconds = t ? BigInt(t) / 1_000_000_000n : block.timeUnixMs / 1_000n
-    const elapsed = tSeconds - BigInt(start_time) / 1_000_000_000n
+    const x = tSeconds - BigInt(start_time) / 1_000_000_000n
 
     if ('constant' in vested) {
       return vested.constant.y
@@ -51,12 +51,12 @@ export const vested: ContractFormula = makeSimpleContractFormula<
       const minY = BigInt(vested.saturating_linear.min_y)
       const maxY = BigInt(vested.saturating_linear.max_y)
 
-      if (elapsed < minX || minX === maxX) {
+      if (x < minX || minX === maxX) {
         return minY.toString()
-      } else if (elapsed > maxX) {
+      } else if (x > maxX) {
         return maxY.toString()
       } else {
-        return interpolate([minX, minY], [maxX, maxY], elapsed).toString()
+        return interpolate([minX, minY], [maxX, maxY], x).toString()
       }
     } else if ('piecewise_linear' in vested) {
       // https://github.com/wynddao/wynddao/blob/909ee2f2b382eff06cf9f7af4102f0920da8c8a3/packages/utils/src/curve.rs#L270-L302
@@ -69,7 +69,7 @@ export const vested: ContractFormula = makeSimpleContractFormula<
       ]
       for (const [stepX, stepY] of steps) {
         // only break if x is not above prev
-        if (elapsed > next[0]) {
+        if (x > next[0]) {
           prev = next
           next = [BigInt(stepX), BigInt(stepY)]
         } else {
@@ -82,15 +82,15 @@ export const vested: ContractFormula = makeSimpleContractFormula<
       // x may be greater than next (if higher than last item)
       // OR x may be between prev and next (interpolate)
       if (prev) {
-        if (elapsed === prev[0]) {
+        if (x === prev[0]) {
           // this handles exact match with low end
           return prev[1].toString()
-        } else if (elapsed >= next[0]) {
+        } else if (x >= next[0]) {
           // this handles both higher than all and exact match
           return next[1].toString()
         } else {
           // here we do linear interpolation
-          return interpolate(prev, next, elapsed).toString()
+          return interpolate(prev, next, x).toString()
         }
       } else {
         // lower than all, use first