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-rw-r--r--cpp/013run7
-rw-r--r--cpp/018record6
-rw-r--r--cpp/019address8
-rw-r--r--cpp/024brace12
-rw-r--r--cpp/025name3
5 files changed, 17 insertions, 19 deletions
diff --git a/cpp/013run b/cpp/013run
index 5173f6f3..33385e00 100644
--- a/cpp/013run
+++ b/cpp/013run
@@ -118,9 +118,8 @@ recipes_added_by_test.clear();
 //: beware: overridden in later layers
 vector<int> read_memory(reagent x) {
 //?   cout << "read_memory: " << x.to_string() << '\n'; //? 1
-  static const int LITERAL = Type_number["literal"];
   vector<int> result;
-  if (x.types[0] == LITERAL) {
+  if (isa_literal(x)) {
     result.push_back(x.value);
     return result;
   }
@@ -157,6 +156,10 @@ bool is_dummy(const reagent& x) {
   return x.name == "_";
 }
 
+bool isa_literal(const reagent& r) {
+  return r.types.size() == 1 && r.types[0] == 0;
+}
+
 :(scenario run_label)
 recipe main [
   +foo
diff --git a/cpp/018record b/cpp/018record
index 64cedb7a..91e142a3 100644
--- a/cpp/018record
+++ b/cpp/018record
@@ -39,8 +39,7 @@ case GET: {
   int base_type = instructions[pc].ingredients[0].types[0];
   assert(Type[base_type].is_record);
   trace("run") << "ingredient 1 is " << instructions[pc].ingredients[1].name;
-  assert(instructions[pc].ingredients[1].types.size() == 1);
-  assert(instructions[pc].ingredients[1].types[0] == 0);  // must be literal
+  assert(isa_literal(instructions[pc].ingredients[1]));
   size_t offset = instructions[pc].ingredients[1].value;
   int src = base_address;
   for (size_t i = 0; i < offset; ++i) {
@@ -118,8 +117,7 @@ case GET_ADDRESS: {
   int base_type = instructions[pc].ingredients[0].types[0];
   assert(Type[base_type].is_record);
   trace("run") << "ingredient 1 is " << instructions[pc].ingredients[1].name;
-  assert(instructions[pc].ingredients[1].types.size() == 1);
-  assert(instructions[pc].ingredients[1].types[0] == 0);  // must be literal
+  assert(isa_literal(instructions[pc].ingredients[1]));
   size_t offset = instructions[pc].ingredients[1].value;
   int src = base_address;
   for (size_t i = 0; i < offset; ++i) {
diff --git a/cpp/019address b/cpp/019address
index 28fa4515..a642ceb1 100644
--- a/cpp/019address
+++ b/cpp/019address
@@ -15,7 +15,7 @@ recipe main [
 :(replace{} "vector<int> read_memory(reagent x)")
 vector<int> read_memory(reagent x) {
   vector<int> result;
-  if (x.types[0] == 0) {  // literal
+  if (isa_literal(x)) {
     result.push_back(x.value);
     return result;
   }
@@ -133,8 +133,7 @@ case GET: {
   int base_type = base.types[0];
   assert(Type[base_type].is_record);
   trace("run") << "ingredient 1 is " << instructions[pc].ingredients[1].name;
-  assert(instructions[pc].ingredients[1].types.size() == 1);
-  assert(instructions[pc].ingredients[1].types[0] == 0);  // must be literal
+  assert(isa_literal(instructions[pc].ingredients[1]));
   size_t offset = instructions[pc].ingredients[1].value;
   int src = base_address;
   for (size_t i = 0; i < offset; ++i) {
@@ -176,8 +175,7 @@ case GET_ADDRESS: {
   int base_type = base.types[0];
   assert(Type[base_type].is_record);
   trace("run") << "ingredient 1 is " << instructions[pc].ingredients[1].name;
-  assert(instructions[pc].ingredients[1].types.size() == 1);
-  assert(instructions[pc].ingredients[1].types[0] == 0);  // must be literal
+  assert(isa_literal(instructions[pc].ingredients[1]));
   size_t offset = instructions[pc].ingredients[1].value;
   int src = base_address;
   for (size_t i = 0; i < offset; ++i) {
diff --git a/cpp/024brace b/cpp/024brace
index fdcf12e6..ec6171f7 100644
--- a/cpp/024brace
+++ b/cpp/024brace
@@ -60,7 +60,7 @@ void transform_braces(const recipe_number r) {
       ;  // do nothing
     else if (inst.operation == Recipe_number["loop"]) {
       inst.operation = Recipe_number["jump"];
-      if (inst.ingredients.size() > 0 && inst.ingredients[0].types[0] == 0) {
+      if (inst.ingredients.size() > 0 && isa_literal(inst.ingredients[0])) {
         // explicit target; a later phase will handle it
         trace("after-brace") << "jump " << inst.ingredients[0].name << ":offset";
       }
@@ -75,7 +75,7 @@ void transform_braces(const recipe_number r) {
     }
     else if (inst.operation == Recipe_number["break"]) {
       inst.operation = Recipe_number["jump"];
-      if (inst.ingredients.size() > 0 && inst.ingredients[0].types[0] == 0) {
+      if (inst.ingredients.size() > 0 && isa_literal(inst.ingredients[0])) {
         // explicit target; a later phase will handle it
         trace("after-brace") << "jump " << inst.ingredients[0].name << ":offset";
       }
@@ -88,7 +88,7 @@ void transform_braces(const recipe_number r) {
     }
     else if (inst.operation == Recipe_number["loop-if"]) {
       inst.operation = Recipe_number["jump-if"];
-      if (inst.ingredients.size() > 1 && inst.ingredients[1].types[0] == 0) {
+      if (inst.ingredients.size() > 1 && isa_literal(inst.ingredients[1])) {
         // explicit target; a later phase will handle it
         trace("after-brace") << "jump " << inst.ingredients[1].name << ":offset";
       }
@@ -101,7 +101,7 @@ void transform_braces(const recipe_number r) {
     }
     else if (inst.operation == Recipe_number["break-if"]) {
       inst.operation = Recipe_number["jump-if"];
-      if (inst.ingredients.size() > 1 && inst.ingredients[1].types[0] == 0) {
+      if (inst.ingredients.size() > 1 && isa_literal(inst.ingredients[1])) {
         // explicit target; a later phase will handle it
         trace("after-brace") << "jump " << inst.ingredients[1].name << ":offset";
       }
@@ -114,7 +114,7 @@ void transform_braces(const recipe_number r) {
     }
     else if (inst.operation == Recipe_number["loop-unless"]) {
       inst.operation = Recipe_number["jump-unless"];
-      if (inst.ingredients.size() > 1 && inst.ingredients[1].types[0] == 0) {
+      if (inst.ingredients.size() > 1 && isa_literal(inst.ingredients[1])) {
         // explicit target; a later phase will handle it
         trace("after-brace") << "jump " << inst.ingredients[1].name << ":offset";
       }
@@ -127,7 +127,7 @@ void transform_braces(const recipe_number r) {
     }
     else if (inst.operation == Recipe_number["break-unless"]) {
       inst.operation = Recipe_number["jump-unless"];
-      if (inst.ingredients.size() > 1 && inst.ingredients[1].types[0] == 0) {
+      if (inst.ingredients.size() > 1 && isa_literal(inst.ingredients[1])) {
         // explicit target; a later phase will handle it
         trace("after-brace") << "jump " << inst.ingredients[1].name << ":offset";
       }
diff --git a/cpp/025name b/cpp/025name
index d36552d3..7296881b 100644
--- a/cpp/025name
+++ b/cpp/025name
@@ -33,8 +33,7 @@ void transform_names(const recipe_number r) {
         || inst.operation == Recipe_number["get-address"]) {
       // at least 2 args, and second arg is offset
       assert(inst.ingredients.size() >= 2);
-      assert(!inst.ingredients[1].types.empty());
-      assert(inst.ingredients[1].types[0] == 0);
+      assert(isa_literal(inst.ingredients[1]));
       if (inst.ingredients[1].name.find_first_not_of("0123456789") == string::npos) continue;
       // since first non-address in base type must be a record, we don't have to canonize
       type_number record = skip_addresses(inst.ingredients[0].types);