s/alwaysAdvancesOnSuccess/alwaysConsumesOnSuccess/

Matches terminology change from the previous commit.

lib/compiler/asts.js

@@ -13,51 +13,51 @@ var asts = {
     return arrays.indexOf(ast.rules, function(r) { return r.name === name; });
   },
 
-  alwaysAdvancesOnSuccess: function(ast, node) {
+  alwaysConsumesOnSuccess: function(ast, node) {
-    function advancesTrue()  { return true;  }
+    function consumesTrue()  { return true;  }
-    function advancesFalse() { return false; }
+    function consumesFalse() { return false; }
 
-    function advancesExpression(node) {
+    function consumesExpression(node) {
-      return advances(node.expression);
+      return consumes(node.expression);
     }
 
-    var advances = visitor.build({
+    var consumes = visitor.build({
-      rule:  advancesExpression,
+      rule:  consumesExpression,
-      named: advancesExpression,
+      named: consumesExpression,
 
       choice: function(node) {
-        return arrays.every(node.alternatives, advances);
+        return arrays.every(node.alternatives, consumes);
       },
 
-      action: advancesExpression,
+      action: consumesExpression,
 
       sequence: function(node) {
-        return arrays.some(node.elements, advances);
+        return arrays.some(node.elements, consumes);
       },
 
-      labeled:      advancesExpression,
+      labeled:      consumesExpression,
-      text:         advancesExpression,
+      text:         consumesExpression,
-      simple_and:   advancesFalse,
+      simple_and:   consumesFalse,
-      simple_not:   advancesFalse,
+      simple_not:   consumesFalse,
-      optional:     advancesFalse,
+      optional:     consumesFalse,
-      zero_or_more: advancesFalse,
+      zero_or_more: consumesFalse,
-      one_or_more:  advancesExpression,
+      one_or_more:  consumesExpression,
-      semantic_and: advancesFalse,
+      semantic_and: consumesFalse,
-      semantic_not: advancesFalse,
+      semantic_not: consumesFalse,
 
       rule_ref: function(node) {
-        return advances(asts.findRule(ast, node.name));
+        return consumes(asts.findRule(ast, node.name));
       },
 
       literal: function(node) {
         return node.value !== "";
       },
 
-      "class": advancesTrue,
+      "class": consumesTrue,
-      any:     advancesTrue
+      any:     consumesTrue
     });
 
-    return advances(node);
+    return consumes(node);
   }
 };
 

lib/compiler/passes/report-infinite-loops.js

@@ -11,13 +11,13 @@ var GrammarError = require("../../grammar-error"),
 function reportInfiniteLoops(ast) {
   var check = visitor.build({
     zero_or_more: function(node) {
-      if (!asts.alwaysAdvancesOnSuccess(ast, node.expression)) {
+      if (!asts.alwaysConsumesOnSuccess(ast, node.expression)) {
         throw new GrammarError("Infinite loop detected.", node.location);
       }
     },
 
     one_or_more: function(node) {
-      if (!asts.alwaysAdvancesOnSuccess(ast, node.expression)) {
+      if (!asts.alwaysConsumesOnSuccess(ast, node.expression)) {
         throw new GrammarError("Infinite loop detected.", node.location);
       }
     }

lib/compiler/passes/report-left-recursion.js

@@ -31,7 +31,7 @@ function reportLeftRecursion(ast) {
       arrays.every(node.elements, function(element) {
         check(element);
 
-        return !asts.alwaysAdvancesOnSuccess(ast, element);
+        return !asts.alwaysConsumesOnSuccess(ast, element);
       });
     },
 

spec/unit/compiler/passes/report-infinite-loops.spec.js

@@ -26,7 +26,7 @@ describe("compiler pass |reportInfiniteLoops|", function() {
     });
   });
 
-  it("computes expressions that always advance on success correctly", function() {
+  it("computes expressions that always consume input on success correctly", function() {
     expect(pass).toReportError([
       'start = a*',
       'a "a" = ""'

spec/unit/compiler/passes/report-left-recursion.spec.js

@@ -45,7 +45,7 @@ describe("compiler pass |reportLeftRecursion|", function() {
       expect(pass).toReportError('start = "" start?');
     });
 
-    it("computes expressions that always advance on success correctly", function() {
+    it("computes expressions that always consume input on success correctly", function() {
       expect(pass).toReportError([
         'start = a start',
         'a "a" = ""'