Rename TypeDeterminer to Resolver

Move out of the src root and into its own subdirectory
Rename methods to remove the 'Determine' prefix.

Fixed: tint:529
Change-Id: Idf89d647780f8a2e7495c1c9e6c402e00ad45b7c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/44041
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>

BUILD.gn

@@ -377,6 +377,8 @@ source_set("libtint_core_src") {
     "src/program_builder.h",
     "src/reader/reader.cc",
     "src/reader/reader.h",
+    "src/resolver/resolver.cc",
+    "src/resolver/resolver.h",
     "src/scope_stack.h",
     "src/semantic/call.h",
     "src/semantic/expression.h",
@@ -455,8 +457,6 @@ source_set("libtint_core_src") {
     "src/type/vector_type.h",
     "src/type/void_type.cc",
     "src/type/void_type.h",
-    "src/type_determiner.cc",
-    "src/type_determiner.h",
     "src/utils/unique_vector.h",
     "src/validator/validator.cc",
     "src/validator/validator.h",
@@ -842,6 +842,7 @@ source_set("tint_unittests_core_src") {
     "src/intrinsic_table_test.cc",
     "src/program_builder_test.cc",
     "src/program_test.cc",
+    "src/resolver/resolver_test.cc",
     "src/semantic/sem_intrinsic_test.cc",
     "src/scope_stack_test.cc",
     "src/symbol_table_test.cc",
@@ -871,7 +872,6 @@ source_set("tint_unittests_core_src") {
     "src/type/type_manager_test.cc",
     "src/type/u32_type_test.cc",
     "src/type/vector_type_test.cc",
-    "src/type_determiner_test.cc",
     "src/utils/command_test.cc",
     "src/utils/command.h",
     "src/utils/tmpfile_test.cc",

docs/arch.md

@@ -24,7 +24,7 @@
       ┃             ┌┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┃┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┐
       ▲             ┆ Build           ▼                ┆
   ┏━━━┻━━━┓         ┆        ┏━━━━━━━━┻━━━━━━━━┓       ┆
-  ┃ Clone ┃         ┆        ┃ Type Determiner ┃       ┆
+  ┃ Clone ┃         ┆        ┃    Resolver     ┃       ┆
   ┗━━━┳━━━┛         ┆        ┗━━━━━━━━━━━━━━━━━┛       ┆
       ▲             └┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┃┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┘
       ┃                               ▼
@@ -69,8 +69,8 @@ simpler. A `ProgramBuilder` can only be used once, and must be discarded after
 the `Program` is constructed.
 
 A `Program` is built from the `ProgramBuilder` by `std::move()`ing the
-`ProgramBuilder` to a new `Program` object. When built, type determination is
-run so the produced `Program` will contain all the needed semantic information.
+`ProgramBuilder` to a new `Program` object. When built, resolution is performed
+so the produced `Program` will contain all the needed semantic information.
 
 At any time before building the `Program`, `ProgramBuilder::IsValid()` may be
 called to ensure the AST is **structurally** correct. This checks that things
@@ -101,7 +101,7 @@ can set, aside from storing it as an unsigned integer.
 
 ## Types
 
-Types are constructed during the Reader and Type Determination phases, and are
+Types are constructed during the Reader and resolution phases, and are
 held by the `Program` or `ProgramBuilder`. AST and semantic nodes can both
 reference types.
 
@@ -120,7 +120,7 @@ a higher / more abstract level than the AST. This includes information such as
 the resolved type of each expression, the resolved overload of an intrinsic
 function call, and the module scoped variables used by each function.
 
-Semantic information is generated by the `TypeDeterminer` when the `Program`
+Semantic information is generated by the `Resolver` when the `Program`
 is built from a `ProgramBuilder`.
 
 The `semantic::Info` class holds a map of `ast::Node`s to `semantic::Node`s.
@@ -142,15 +142,15 @@ During the Writer phase, symbols may be emitted as strings using a `Namer`.
 A `Namer` may output the symbol in any form that preserves the uniqueness of
 that symbol.
 
-## Type Determiner
+## Resolver
 
-The `TypeDeterminer` will automatically run when a `Program` is built.
-A `TypeDeterminer` creates the `Program`s semantic information by analyzing the
+The `Resolver` will automatically run when a `Program` is built.
+A `Resolver` creates the `Program`s semantic information by analyzing the
 `Program`s AST and type information.
 
-The `TypeDeterminer` will do the minimal amount of validation required in order
+The `Resolver` will do the minimal amount of validation required in order
 to always be accessing valid nodes, reporting any errors found in the
-`Program`'s diagnostics. Even if the `TypeDeterminer` doesn't generate any
+`Program`'s diagnostics. Even if the `Resolver` doesn't generate any
 errors doesn't mean the generated `Program` is semantically valid. Use the
 `Validator` to check for a `Program`'s final validity.
 
@@ -158,10 +158,10 @@ errors doesn't mean the generated `Program` is semantically valid. Use the
 
 A `Program` holds an immutable version of the information from the
 `ProgramBuilder` along with semantic information generated by the
-`TypeDeterminer`.
+`Resolver`.
 
 Like `ProgramBuilder`, `Program::IsValid()` may be called to ensure the AST is
-structurally correct and that the `TypeDeterminer` did not report any errors.
+structurally correct and that the `Resolver` did not report any errors.
 `Program::IsValid()` does not perform semantic validation, use the `Validator`
 to check for a `Program`'s final validity.
 
@@ -192,7 +192,7 @@ This is for things like Vertex Pulling or Robust Buffer Access.
 
 A transform operates by cloning the input `Program` into a new `ProgramBuilder`,
 applying the required changes, and then finally building and returning a new
-output `Program`. As type determination is always run when a `Program` is built,
+output `Program`. As the resolver is always run when a `Program` is built,
 Transforms will always emit a `Program` with semantic information.
 
 The input `Program` to a transform must be valid (pass validation).

src/CMakeLists.txt

@@ -191,6 +191,8 @@ set(TINT_LIB_SRCS
   program.h
   reader/reader.cc
   reader/reader.h
+  resolver/resolver.cc
+  resolver/resolver.h
   scope_stack.h
   semantic/call.h
   semantic/expression.h
@@ -229,8 +231,6 @@ set(TINT_LIB_SRCS
   transform/transform.h
   transform/vertex_pulling.cc
   transform/vertex_pulling.h
-  type_determiner.cc
-  type_determiner.h
   type/access_control_type.cc
   type/access_control_type.h
   type/alias_type.cc
@@ -470,13 +470,13 @@ if(${TINT_BUILD_TESTS})
     inspector/inspector_test.cc
     intrinsic_table_test.cc
     program_test.cc
+    resolver/resolver_test.cc
     semantic/sem_intrinsic_test.cc
     scope_stack_test.cc
     symbol_table_test.cc
     symbol_test.cc
     traits_test.cc
     test_main.cc
-    type_determiner_test.cc
     type/access_control_type_test.cc
     type/alias_type_test.cc
     type/array_type_test.cc

src/inspector/inspector_test.cc

@@ -60,7 +60,6 @@
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "tint/tint.h"
 
 namespace tint {
@@ -704,7 +703,6 @@ class InspectorHelper : public ProgramBuilder {
   type::Sampler* comparison_sampler_type() { return &comparison_sampler_type_; }
 
  private:
-  std::unique_ptr<TypeDeterminer> td_;
   std::unique_ptr<Program> program_;
   std::unique_ptr<Inspector> inspector_;
   type::Sampler sampler_type_;

src/program.cc

@@ -21,8 +21,8 @@
 #include "src/clone_context.h"
 #include "src/demangler.h"
 #include "src/program_builder.h"
+#include "src/resolver/resolver.h"
 #include "src/semantic/expression.h"
-#include "src/type_determiner.h"
 
 namespace tint {
 
@@ -44,9 +44,9 @@ Program::Program(Program&& program)
 Program::Program(ProgramBuilder&& builder) {
   is_valid_ = builder.IsValid();
   if (builder.ResolveOnBuild() && builder.IsValid()) {
-    TypeDeterminer td(&builder);
-    if (!td.Determine()) {
-      diagnostics_.add_error(td.error());
+    Resolver resolver(&builder);
+    if (!resolver.Resolve()) {
+      diagnostics_.add_error(resolver.error());
       is_valid_ = false;
     }
   }

src/program_builder.cc

@@ -94,7 +94,7 @@ ast::VariableDeclStatement* ProgramBuilder::WrapInStatement(ast::Variable* v) {
 }
 
 ast::Statement* ProgramBuilder::WrapInStatement(ast::Expression* expr) {
-  // TODO(ben-clayton): This is valid enough for the TypeDeterminer, but the LHS
+  // TODO(ben-clayton): This is valid enough for the Resolver, but the LHS
   // may not be assignable, and so may not validate.
   return create<ast::AssignmentStatement>(expr, expr);
 }

src/program_builder.h

@@ -206,12 +206,11 @@ class ProgramBuilder {
     return diagnostics_;
   }
 
-  /// Controls whether the TypeDeterminer will be run on the program when it is
-  /// built.
+  /// Controls whether the Resolver will be run on the program when it is built.
   /// @param enable the new flag value (defaults to true)
   void SetResolveOnBuild(bool enable) { resolve_on_build_ = enable; }
 
-  /// @return true if the TypeDeterminer will be run on the program when it is
+  /// @return true if the Resolver will be run on the program when it is
   /// built.
   bool ResolveOnBuild() const { return resolve_on_build_; }
 
@@ -1128,22 +1127,21 @@ class ProgramBuilder {
   }
 
   /// Helper for returning the resolved semantic type of the expression `expr`.
-  /// @note As the TypeDeterminator is run when the Program is built, this will
-  /// only be useful for the TypeDeterminer itself and tests that use their own
-  /// TypeDeterminer.
+  /// @note As the Resolver is run when the Program is built, this will only be
+  /// useful for the Resolver itself and tests that use their own Resolver.
   /// @param expr the AST expression
   /// @return the resolved semantic type for the expression, or nullptr if the
   /// expression has no resolved type.
   type::Type* TypeOf(ast::Expression* expr) const;
 
   /// Wraps the ast::Expression in a statement. This is used by tests that
-  /// construct a partial AST and require the TypeDeterminer to reach these
+  /// construct a partial AST and require the Resolver to reach these
   /// nodes.
   /// @param expr the ast::Expression to be wrapped by an ast::Statement
   /// @return the ast::Statement that wraps the ast::Expression
   ast::Statement* WrapInStatement(ast::Expression* expr);
   /// Wraps the ast::Variable in a ast::VariableDeclStatement. This is used by
-  /// tests that construct a partial AST and require the TypeDeterminer to reach
+  /// tests that construct a partial AST and require the Resolver to reach
   /// these nodes.
   /// @param v the ast::Variable to be wrapped by an ast::VariableDeclStatement
   /// @return the ast::VariableDeclStatement that wraps the ast::Variable
@@ -1154,7 +1152,7 @@ class ProgramBuilder {
   /// @return `stmt`
   ast::Statement* WrapInStatement(ast::Statement* stmt);
   /// Wraps the list of arguments in a simple function so that each is reachable
-  /// by the TypeDeterminer.
+  /// by the Resolver.
   /// @param args a mix of ast::Expression, ast::Statement, ast::Variables.
   template <typename... ARGS>
   void WrapInFunction(ARGS&&... args) {
@@ -1162,7 +1160,7 @@ class ProgramBuilder {
     WrapInFunction(stmts);
   }
   /// @param stmts a list of ast::Statement that will be wrapped by a function,
-  /// so that each statement is reachable by the TypeDeterminer.
+  /// so that each statement is reachable by the Resolver.
   void WrapInFunction(ast::StatementList stmts);
 
   /// The builder types
@@ -1185,7 +1183,7 @@ class ProgramBuilder {
   /// the first argument.
   Source source_;
 
-  /// Set by SetResolveOnBuild(). If set, the TypeDeterminer will be run on the
+  /// Set by SetResolveOnBuild(). If set, the Resolver will be run on the
   /// program when built.
   bool resolve_on_build_ = true;
 

src/reader/spirv/parser_impl_test_helper.h

@@ -41,7 +41,7 @@ class SpvParserTestBase : public T {
   /// @returns a parser for the given binary
   std::unique_ptr<ParserImpl> parser(const std::vector<uint32_t>& input) {
     auto parser = std::make_unique<ParserImpl>(input);
-    // Don't run the TypeDeterminer when building the program.
+    // Don't run the Resolver when building the program.
     // We're not interested in type information with these tests.
     parser->builder().SetResolveOnBuild(false);
     return parser;

src/resolver/resolver.cc

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "src/type_determiner.h"
+#include "src/resolver/resolver.h"
 
 #include <algorithm>
 #include <memory>
@@ -91,19 +91,19 @@ class ScopedAssignment {
 
 }  // namespace
 
-TypeDeterminer::TypeDeterminer(ProgramBuilder* builder)
+Resolver::Resolver(ProgramBuilder* builder)
     : builder_(builder), intrinsic_table_(IntrinsicTable::Create()) {}
 
-TypeDeterminer::~TypeDeterminer() = default;
+Resolver::~Resolver() = default;
 
-TypeDeterminer::BlockInfo::BlockInfo(TypeDeterminer::BlockInfo::Type type,
-                                     TypeDeterminer::BlockInfo* parent,
-                                     const ast::BlockStatement* block)
-    : type(type), parent(parent), block(block) {}
+Resolver::BlockInfo::BlockInfo(Resolver::BlockInfo::Type ty,
+                               Resolver::BlockInfo* p,
+                               const ast::BlockStatement* b)
+    : type(ty), parent(p), block(b) {}
 
-TypeDeterminer::BlockInfo::~BlockInfo() = default;
+Resolver::BlockInfo::~BlockInfo() = default;
 
-void TypeDeterminer::set_referenced_from_function_if_needed(VariableInfo* var,
+void Resolver::set_referenced_from_function_if_needed(VariableInfo* var,
                                                       bool local) {
   if (current_function_ == nullptr) {
     return;
@@ -119,8 +119,8 @@ void TypeDeterminer::set_referenced_from_function_if_needed(VariableInfo* var,
   }
 }
 
-bool TypeDeterminer::Determine() {
-  bool result = DetermineInternal();
+bool Resolver::Resolve() {
+  bool result = ResolveInternal();
 
   // Even if resolving failed, create all the semantic nodes for information we
   // did generate.
@@ -129,34 +129,34 @@ bool TypeDeterminer::Determine() {
   return result;
 }
 
-bool TypeDeterminer::DetermineInternal() {
+bool Resolver::ResolveInternal() {
   for (auto* var : builder_->AST().GlobalVariables()) {
     variable_stack_.set_global(var->symbol(), CreateVariableInfo(var));
 
     if (var->has_constructor()) {
-      if (!DetermineResultType(var->constructor())) {
+      if (!Expression(var->constructor())) {
         return false;
       }
     }
   }
 
-  if (!DetermineFunctions(builder_->AST().Functions())) {
+  if (!Functions(builder_->AST().Functions())) {
     return false;
   }
 
   return true;
 }
 
-bool TypeDeterminer::DetermineFunctions(const ast::FunctionList& funcs) {
+bool Resolver::Functions(const ast::FunctionList& funcs) {
   for (auto* func : funcs) {
-    if (!DetermineFunction(func)) {
+    if (!Function(func)) {
       return false;
     }
   }
   return true;
 }
 
-bool TypeDeterminer::DetermineFunction(ast::Function* func) {
+bool Resolver::Function(ast::Function* func) {
   auto* func_info = function_infos_.Create<FunctionInfo>(func);
 
   ScopedAssignment<FunctionInfo*> sa(current_function_, func_info);
@@ -166,7 +166,7 @@ bool TypeDeterminer::DetermineFunction(ast::Function* func) {
     variable_stack_.set(param->symbol(), CreateVariableInfo(param));
   }
 
-  if (!DetermineBlockStatement(func->body())) {
+  if (!BlockStatement(func->body())) {
     return false;
   }
   variable_stack_.pop_scope();
@@ -180,35 +180,35 @@ bool TypeDeterminer::DetermineFunction(ast::Function* func) {
   return true;
 }
 
-bool TypeDeterminer::DetermineBlockStatement(const ast::BlockStatement* stmt) {
+bool Resolver::BlockStatement(const ast::BlockStatement* stmt) {
   auto* block =
       block_infos_.Create(BlockInfo::Type::Generic, current_block_, stmt);
   block_to_info_[stmt] = block;
   ScopedAssignment<BlockInfo*> scope_sa(current_block_, block);
 
-  return DetermineStatements(stmt->list());
+  return Statements(stmt->list());
 }
 
-bool TypeDeterminer::DetermineStatements(const ast::StatementList& stmts) {
+bool Resolver::Statements(const ast::StatementList& stmts) {
   for (auto* stmt : stmts) {
     if (auto* decl = stmt->As<ast::VariableDeclStatement>()) {
-      if (!ValidateVariableDeclStatement(decl)) {
+      if (!VariableDeclStatement(decl)) {
         return false;
       }
     }
 
-    if (!DetermineVariableStorageClass(stmt)) {
+    if (!VariableStorageClass(stmt)) {
       return false;
     }
 
-    if (!DetermineResultType(stmt)) {
+    if (!Statement(stmt)) {
       return false;
     }
   }
   return true;
 }
 
-bool TypeDeterminer::DetermineVariableStorageClass(ast::Statement* stmt) {
+bool Resolver::VariableStorageClass(ast::Statement* stmt) {
   auto* var_decl = stmt->As<ast::VariableDeclStatement>();
   if (var_decl == nullptr) {
     return true;
@@ -238,25 +238,25 @@ bool TypeDeterminer::DetermineVariableStorageClass(ast::Statement* stmt) {
   return true;
 }
 
-bool TypeDeterminer::DetermineResultType(ast::Statement* stmt) {
+bool Resolver::Statement(ast::Statement* stmt) {
   auto* sem_statement = builder_->create<semantic::Statement>(stmt);
 
   ScopedAssignment<semantic::Statement*> sa(current_statement_, sem_statement);
 
   if (auto* a = stmt->As<ast::AssignmentStatement>()) {
-    return DetermineResultType(a->lhs()) && DetermineResultType(a->rhs());
+    return Expression(a->lhs()) && Expression(a->rhs());
   }
   if (auto* b = stmt->As<ast::BlockStatement>()) {
-    return DetermineBlockStatement(b);
+    return BlockStatement(b);
   }
   if (stmt->Is<ast::BreakStatement>()) {
     return true;
   }
   if (auto* c = stmt->As<ast::CallStatement>()) {
-    return DetermineResultType(c->expr());
+    return Expression(c->expr());
   }
   if (auto* c = stmt->As<ast::CaseStatement>()) {
-    return DetermineBlockStatement(c->body());
+    return BlockStatement(c->body());
   }
   if (stmt->Is<ast::ContinueStatement>()) {
     // Set if we've hit the first continue statement in our parent loop
@@ -277,20 +277,18 @@ bool TypeDeterminer::DetermineResultType(ast::Statement* stmt) {
     return true;
   }
   if (auto* e = stmt->As<ast::ElseStatement>()) {
-    return DetermineResultType(e->condition()) &&
-           DetermineBlockStatement(e->body());
+    return Expression(e->condition()) && BlockStatement(e->body());
   }
   if (stmt->Is<ast::FallthroughStatement>()) {
     return true;
   }
   if (auto* i = stmt->As<ast::IfStatement>()) {
-    if (!DetermineResultType(i->condition()) ||
-        !DetermineBlockStatement(i->body())) {
+    if (!Expression(i->condition()) || !BlockStatement(i->body())) {
       return false;
     }
 
     for (auto* else_stmt : i->else_statements()) {
-      if (!DetermineResultType(else_stmt)) {
+      if (!Statement(else_stmt)) {
         return false;
       }
     }
@@ -306,31 +304,31 @@ bool TypeDeterminer::DetermineResultType(ast::Statement* stmt) {
     block_to_info_[l->body()] = block;
     ScopedAssignment<BlockInfo*> scope_sa(current_block_, block);
 
-    if (!DetermineStatements(l->body()->list())) {
+    if (!Statements(l->body()->list())) {
       return false;
     }
 
     if (l->has_continuing()) {
-      auto* block = block_infos_.Create(BlockInfo::Type::LoopContinuing,
+      auto* cont_block = block_infos_.Create(BlockInfo::Type::LoopContinuing,
                                              current_block_, l->continuing());
-      block_to_info_[l->continuing()] = block;
-      ScopedAssignment<BlockInfo*> scope_sa(current_block_, block);
+      block_to_info_[l->continuing()] = cont_block;
+      ScopedAssignment<BlockInfo*> scope_sa2(current_block_, cont_block);
 
-      if (!DetermineStatements(l->continuing()->list())) {
+      if (!Statements(l->continuing()->list())) {
         return false;
       }
     }
     return true;
   }
   if (auto* r = stmt->As<ast::ReturnStatement>()) {
-    return DetermineResultType(r->value());
+    return Expression(r->value());
   }
   if (auto* s = stmt->As<ast::SwitchStatement>()) {
-    if (!DetermineResultType(s->condition())) {
+    if (!Expression(s->condition())) {
       return false;
     }
     for (auto* case_stmt : s->body()) {
-      if (!DetermineResultType(case_stmt)) {
+      if (!Statement(case_stmt)) {
         return false;
       }
     }
@@ -340,7 +338,7 @@ bool TypeDeterminer::DetermineResultType(ast::Statement* stmt) {
     variable_stack_.set(v->variable()->symbol(),
                         variable_to_info_.at(v->variable()));
     current_block_->decls.push_back(v->variable());
-    return DetermineResultType(v->variable()->constructor());
+    return Expression(v->variable()->constructor());
   }
 
   diagnostics_.add_error(
@@ -349,16 +347,16 @@ bool TypeDeterminer::DetermineResultType(ast::Statement* stmt) {
   return false;
 }
 
-bool TypeDeterminer::DetermineResultType(const ast::ExpressionList& list) {
+bool Resolver::Expressions(const ast::ExpressionList& list) {
   for (auto* expr : list) {
-    if (!DetermineResultType(expr)) {
+    if (!Expression(expr)) {
       return false;
     }
   }
   return true;
 }
 
-bool TypeDeterminer::DetermineResultType(ast::Expression* expr) {
+bool Resolver::Expression(ast::Expression* expr) {
   // This is blindly called above, so in some cases the expression won't exist.
   if (!expr) {
     return true;
@@ -369,28 +367,28 @@ bool TypeDeterminer::DetermineResultType(ast::Expression* expr) {
   }
 
   if (auto* a = expr->As<ast::ArrayAccessorExpression>()) {
-    return DetermineArrayAccessor(a);
+    return ArrayAccessor(a);
   }
   if (auto* b = expr->As<ast::BinaryExpression>()) {
-    return DetermineBinary(b);
+    return Binary(b);
   }
   if (auto* b = expr->As<ast::BitcastExpression>()) {
-    return DetermineBitcast(b);
+    return Bitcast(b);
   }
   if (auto* c = expr->As<ast::CallExpression>()) {
-    return DetermineCall(c);
+    return Call(c);
   }
   if (auto* c = expr->As<ast::ConstructorExpression>()) {
-    return DetermineConstructor(c);
+    return Constructor(c);
   }
   if (auto* i = expr->As<ast::IdentifierExpression>()) {
-    return DetermineIdentifier(i);
+    return Identifier(i);
   }
   if (auto* m = expr->As<ast::MemberAccessorExpression>()) {
-    return DetermineMemberAccessor(m);
+    return MemberAccessor(m);
   }
   if (auto* u = expr->As<ast::UnaryOpExpression>()) {
-    return DetermineUnaryOp(u);
+    return UnaryOp(u);
   }
 
   diagnostics_.add_error("unknown expression for type determination",
@@ -398,12 +396,11 @@ bool TypeDeterminer::DetermineResultType(ast::Expression* expr) {
   return false;
 }
 
-bool TypeDeterminer::DetermineArrayAccessor(
-    ast::ArrayAccessorExpression* expr) {
-  if (!DetermineResultType(expr->array())) {
+bool Resolver::ArrayAccessor(ast::ArrayAccessorExpression* expr) {
+  if (!Expression(expr->array())) {
     return false;
   }
-  if (!DetermineResultType(expr->idx_expr())) {
+  if (!Expression(expr->idx_expr())) {
     return false;
   }
 
@@ -439,16 +436,16 @@ bool TypeDeterminer::DetermineArrayAccessor(
   return true;
 }
 
-bool TypeDeterminer::DetermineBitcast(ast::BitcastExpression* expr) {
-  if (!DetermineResultType(expr->expr())) {
+bool Resolver::Bitcast(ast::BitcastExpression* expr) {
+  if (!Expression(expr->expr())) {
     return false;
   }
   SetType(expr, expr->type());
   return true;
 }
 
-bool TypeDeterminer::DetermineCall(ast::CallExpression* call) {
-  if (!DetermineResultType(call->params())) {
+bool Resolver::Call(ast::CallExpression* call) {
+  if (!Expressions(call->params())) {
     return false;
   }
 
@@ -465,7 +462,7 @@ bool TypeDeterminer::DetermineCall(ast::CallExpression* call) {
 
   auto intrinsic_type = semantic::ParseIntrinsicType(name);
   if (intrinsic_type != IntrinsicType::kNone) {
-    if (!DetermineIntrinsicCall(call, intrinsic_type)) {
+    if (!IntrinsicCall(call, intrinsic_type)) {
       return false;
     }
   } else {
@@ -515,8 +512,7 @@ bool TypeDeterminer::DetermineCall(ast::CallExpression* call) {
   return true;
 }
 
-bool TypeDeterminer::DetermineIntrinsicCall(
-    ast::CallExpression* call,
+bool Resolver::IntrinsicCall(ast::CallExpression* call,
                              semantic::IntrinsicType intrinsic_type) {
   std::vector<type::Type*> arg_tys;
   arg_tys.reserve(call->params().size());
@@ -571,10 +567,10 @@ bool TypeDeterminer::DetermineIntrinsicCall(
   return true;
 }
 
-bool TypeDeterminer::DetermineConstructor(ast::ConstructorExpression* expr) {
+bool Resolver::Constructor(ast::ConstructorExpression* expr) {
   if (auto* ty = expr->As<ast::TypeConstructorExpression>()) {
     for (auto* value : ty->values()) {
-      if (!DetermineResultType(value)) {
+      if (!Expression(value)) {
         return false;
       }
     }
@@ -586,7 +582,7 @@ bool TypeDeterminer::DetermineConstructor(ast::ConstructorExpression* expr) {
   return true;
 }
 
-bool TypeDeterminer::DetermineIdentifier(ast::IdentifierExpression* expr) {
+bool Resolver::Identifier(ast::IdentifierExpression* expr) {
   auto symbol = expr->symbol();
   VariableInfo* var;
   if (variable_stack_.get(symbol, &var)) {
@@ -615,9 +611,9 @@ bool TypeDeterminer::DetermineIdentifier(ast::IdentifierExpression* expr) {
         auto& decls = loop_block->decls;
         // If our identifier is in loop_block->decls, make sure its index is
         // less than first_continue
-        auto iter = std::find_if(
-            decls.begin(), decls.end(),
-            [&symbol](auto* var) { return var->symbol() == symbol; });
+        auto iter =
+            std::find_if(decls.begin(), decls.end(),
+                         [&symbol](auto* v) { return v->symbol() == symbol; });
         if (iter != decls.end()) {
           auto var_decl_index =
               static_cast<size_t>(std::distance(decls.begin(), iter));
@@ -656,9 +652,8 @@ bool TypeDeterminer::DetermineIdentifier(ast::IdentifierExpression* expr) {
   return false;
 }
 
-bool TypeDeterminer::DetermineMemberAccessor(
-    ast::MemberAccessorExpression* expr) {
-  if (!DetermineResultType(expr->structure())) {
+bool Resolver::MemberAccessor(ast::MemberAccessorExpression* expr) {
+  if (!Expression(expr->structure())) {
     return false;
   }
 
@@ -772,8 +767,8 @@ bool TypeDeterminer::DetermineMemberAccessor(
   return true;
 }
 
-bool TypeDeterminer::DetermineBinary(ast::BinaryExpression* expr) {
-  if (!DetermineResultType(expr->lhs()) || !DetermineResultType(expr->rhs())) {
+bool Resolver::Binary(ast::BinaryExpression* expr) {
+  if (!Expression(expr->lhs()) || !Expression(expr->rhs())) {
     return false;
   }
 
@@ -844,9 +839,9 @@ bool TypeDeterminer::DetermineBinary(ast::BinaryExpression* expr) {
   return false;
 }
 
-bool TypeDeterminer::DetermineUnaryOp(ast::UnaryOpExpression* expr) {
+bool Resolver::UnaryOp(ast::UnaryOpExpression* expr) {
   // Result type matches the parameter type.
-  if (!DetermineResultType(expr->expr())) {
+  if (!Expression(expr->expr())) {
     return false;
   }
 
@@ -855,8 +850,7 @@ bool TypeDeterminer::DetermineUnaryOp(ast::UnaryOpExpression* expr) {
   return true;
 }
 
-bool TypeDeterminer::ValidateVariableDeclStatement(
-    const ast::VariableDeclStatement* stmt) {
+bool Resolver::VariableDeclStatement(const ast::VariableDeclStatement* stmt) {
   auto* ctor = stmt->variable()->constructor();
   if (!ctor) {
     return true;
@@ -877,14 +871,13 @@ bool TypeDeterminer::ValidateVariableDeclStatement(
   return true;
 }
 
-TypeDeterminer::VariableInfo* TypeDeterminer::CreateVariableInfo(
-    ast::Variable* var) {
+Resolver::VariableInfo* Resolver::CreateVariableInfo(ast::Variable* var) {
   auto* info = variable_infos_.Create(var);
   variable_to_info_.emplace(var, info);
   return info;
 }
 
-type::Type* TypeDeterminer::TypeOf(ast::Expression* expr) {
+type::Type* Resolver::TypeOf(ast::Expression* expr) {
   auto it = expr_info_.find(expr);
   if (it != expr_info_.end()) {
     return it->second.type;
@@ -892,12 +885,12 @@ type::Type* TypeDeterminer::TypeOf(ast::Expression* expr) {
   return nullptr;
 }
 
-void TypeDeterminer::SetType(ast::Expression* expr, type::Type* type) {
+void Resolver::SetType(ast::Expression* expr, type::Type* type) {
   assert(expr_info_.count(expr) == 0);
   expr_info_.emplace(expr, ExpressionInfo{type, current_statement_});
 }
 
-void TypeDeterminer::CreateSemanticNodes() const {
+void Resolver::CreateSemanticNodes() const {
   auto& sem = builder_->Sem();
 
   // Collate all the 'ancestor_entry_points' - this is a map of function symbol
@@ -906,7 +899,7 @@ void TypeDeterminer::CreateSemanticNodes() const {
   for (auto* func : builder_->AST().Functions()) {
     auto it = function_to_info_.find(func);
     if (it == function_to_info_.end()) {
-      continue;  // Type determination has likely errored. Process what we can.
+      continue;  // Resolver has likely errored. Process what we can.
     }
 
     auto* info = it->second;
@@ -984,14 +977,13 @@ void TypeDeterminer::CreateSemanticNodes() const {
   }
 }
 
-TypeDeterminer::VariableInfo::VariableInfo(ast::Variable* decl)
+Resolver::VariableInfo::VariableInfo(ast::Variable* decl)
     : declaration(decl), storage_class(decl->declared_storage_class()) {}
 
-TypeDeterminer::VariableInfo::~VariableInfo() = default;
+Resolver::VariableInfo::~VariableInfo() = default;
 
-TypeDeterminer::FunctionInfo::FunctionInfo(ast::Function* decl)
-    : declaration(decl) {}
+Resolver::FunctionInfo::FunctionInfo(ast::Function* decl) : declaration(decl) {}
 
-TypeDeterminer::FunctionInfo::~FunctionInfo() = default;
+Resolver::FunctionInfo::~FunctionInfo() = default;
 
 }  // namespace tint

src/resolver/resolver.h

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef SRC_TYPE_DETERMINER_H_
-#define SRC_TYPE_DETERMINER_H_
+#ifndef SRC_RESOLVER_RESOLVER_H_
+#define SRC_RESOLVER_RESOLVER_H_
 
 #include <memory>
 #include <string>
@@ -49,21 +49,21 @@ namespace semantic {
 class Statement;
 }  // namespace semantic
 
-/// Determines types for all items in the given tint program
-class TypeDeterminer {
+/// Resolves types for all items in the given tint program
+class Resolver {
  public:
   /// Constructor
   /// @param builder the program builder
-  explicit TypeDeterminer(ProgramBuilder* builder);
+  explicit Resolver(ProgramBuilder* builder);
 
   /// Destructor
-  ~TypeDeterminer();
+  ~Resolver();
 
-  /// @returns error messages from the type determiner
+  /// @returns error messages from the resolver
   std::string error() const { return diagnostics_.str(); }
 
-  /// @returns true if the type determiner was successful
-  bool Determine();
+  /// @returns true if the resolver was successful
+  bool Resolve();
 
  private:
   /// Structure holding semantic information about a variable.
@@ -124,9 +124,9 @@ class TypeDeterminer {
       return curr;
     }
 
-    BlockInfo* FindFirstParent(BlockInfo::Type type) {
+    BlockInfo* FindFirstParent(BlockInfo::Type ty) {
       return FindFirstParent(
-          [type](auto* block_info) { return block_info->type == type; });
+          [ty](auto* block_info) { return block_info->type == ty; });
     }
 
     const Type type;
@@ -143,45 +143,44 @@ class TypeDeterminer {
   BlockAllocator<BlockInfo> block_infos_;
   BlockInfo* current_block_ = nullptr;
 
-  /// Determines type information for the program, without creating final the
-  /// semantic nodes.
-  /// @returns true if the determination was successful
-  bool DetermineInternal();
+  /// Resolves the program, without creating final the semantic nodes.
+  /// @returns true on success, false on error
+  bool ResolveInternal();
 
-  /// Determines type information for functions
+  /// Resolves functions
   /// @param funcs the functions to check
-  /// @returns true if the determination was successful
-  bool DetermineFunctions(const ast::FunctionList& funcs);
-  /// Determines type information for a function. Requires all dependency
+  /// @returns true on success, false on error
+  bool Functions(const ast::FunctionList& funcs);
+  /// Resolves a function. Requires all dependency
   /// (callee) functions to have DetermineFunction() called on them first.
   /// @param func the function to check
-  /// @returns true if the determination was successful
-  bool DetermineFunction(ast::Function* func);
-  /// Determines the type information for a block statement
+  /// @returns true on success, false on error
+  bool Function(ast::Function* func);
+  /// Resolves a block statement
   /// @param stmt the block statement
   /// @returns true if determination was successful
-  bool DetermineBlockStatement(const ast::BlockStatement* stmt);
-  /// Determines type information for a set of statements
-  /// @param stmts the statements to check
-  /// @returns true if the determination was successful
-  bool DetermineStatements(const ast::StatementList& stmts);
-  /// Determines type information for a statement
+  bool BlockStatement(const ast::BlockStatement* stmt);
+  /// Resolves the list of statements
+  /// @param stmts the statements to resolve
+  /// @returns true on success, false on error
+  bool Statements(const ast::StatementList& stmts);
+  /// Resolves a statement
   /// @param stmt the statement to check
-  /// @returns true if the determination was successful
-  bool DetermineResultType(ast::Statement* stmt);
-  /// Determines type information for an expression list
+  /// @returns true on success, false on error
+  bool Statement(ast::Statement* stmt);
+  /// Resolves an expression list
   /// @param list the expression list to check
-  /// @returns true if the determination was successful
-  bool DetermineResultType(const ast::ExpressionList& list);
-  /// Determines type information for an expression
+  /// @returns true on success, false on error
+  bool Expressions(const ast::ExpressionList& list);
+  /// Resolves an expression
   /// @param expr the expression to check
-  /// @returns true if the determination was successful
-  bool DetermineResultType(ast::Expression* expr);
-  /// Determines the storage class for variables. This assumes that it is only
+  /// @returns true on success, false on error
+  bool Expression(ast::Expression* expr);
+  /// Resolves the storage class for variables. This assumes that it is only
   /// called for things in function scope, not module scope.
   /// @param stmt the statement to check
   /// @returns false on error
-  bool DetermineVariableStorageClass(ast::Statement* stmt);
+  bool VariableStorageClass(ast::Statement* stmt);
 
   /// Creates the nodes and adds them to the semantic::Info mappings of the
   /// ProgramBuilder.
@@ -202,18 +201,18 @@ class TypeDeterminer {
 
   void set_referenced_from_function_if_needed(VariableInfo* var, bool local);
 
-  bool DetermineArrayAccessor(ast::ArrayAccessorExpression* expr);
-  bool DetermineBinary(ast::BinaryExpression* expr);
-  bool DetermineBitcast(ast::BitcastExpression* expr);
-  bool DetermineCall(ast::CallExpression* expr);
-  bool DetermineConstructor(ast::ConstructorExpression* expr);
-  bool DetermineIdentifier(ast::IdentifierExpression* expr);
-  bool DetermineIntrinsicCall(ast::CallExpression* call,
+  bool ArrayAccessor(ast::ArrayAccessorExpression* expr);
+  bool Binary(ast::BinaryExpression* expr);
+  bool Bitcast(ast::BitcastExpression* expr);
+  bool Call(ast::CallExpression* expr);
+  bool Constructor(ast::ConstructorExpression* expr);
+  bool Identifier(ast::IdentifierExpression* expr);
+  bool IntrinsicCall(ast::CallExpression* call,
                      semantic::IntrinsicType intrinsic_type);
-  bool DetermineMemberAccessor(ast::MemberAccessorExpression* expr);
-  bool DetermineUnaryOp(ast::UnaryOpExpression* expr);
+  bool MemberAccessor(ast::MemberAccessorExpression* expr);
+  bool UnaryOp(ast::UnaryOpExpression* expr);
 
-  bool ValidateVariableDeclStatement(const ast::VariableDeclStatement* stmt);
+  bool VariableDeclStatement(const ast::VariableDeclStatement* stmt);
 
   VariableInfo* CreateVariableInfo(ast::Variable*);
 
@@ -244,4 +243,4 @@ class TypeDeterminer {
 
 }  // namespace tint
 
-#endif  // SRC_TYPE_DETERMINER_H_
+#endif  // SRC_RESOLVER_RESOLVER_H_

src/transform/first_index_offset.cc

@@ -53,7 +53,6 @@
 #include "src/semantic/function.h"
 #include "src/type/struct_type.h"
 #include "src/type/u32_type.h"
-#include "src/type_determiner.h"
 
 TINT_INSTANTIATE_TYPEINFO(tint::transform::FirstIndexOffset::Data);
 

src/transform/manager.cc

@@ -15,7 +15,6 @@
 #include "src/transform/manager.h"
 
 #include "src/program_builder.h"
-#include "src/type_determiner.h"
 
 namespace tint {
 namespace transform {

src/transform/test_helper.h

@@ -25,7 +25,6 @@
 #include "src/program_builder.h"
 #include "src/reader/wgsl/parser.h"
 #include "src/transform/manager.h"
-#include "src/type_determiner.h"
 #include "src/writer/wgsl/generator.h"
 
 namespace tint {

src/type/storage_texture_type_test.cc

@@ -30,7 +30,6 @@
 #include "src/type/test_helper.h"
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 
 namespace tint {
 namespace type {
@@ -108,9 +107,10 @@ TEST_F(StorageTextureTest, F32) {
       type::StorageTexture::SubtypeFor(ImageFormat::kRgba32Float, Types());
   Type* s = create<StorageTexture>(TextureDimension::k2dArray,
                                    ImageFormat::kRgba32Float, subtype);
-  TypeDeterminer td(this);
 
-  ASSERT_TRUE(td.Determine()) << td.error();
+  auto program = Build();
+
+  ASSERT_TRUE(program.IsValid()) << program.Diagnostics().str();
   ASSERT_TRUE(s->Is<Texture>());
   ASSERT_TRUE(s->Is<StorageTexture>());
   EXPECT_TRUE(s->As<StorageTexture>()->type()->Is<F32>());
@@ -121,9 +121,10 @@ TEST_F(StorageTextureTest, U32) {
       type::StorageTexture::SubtypeFor(ImageFormat::kRg32Uint, Types());
   Type* s = create<StorageTexture>(TextureDimension::k2dArray,
                                    ImageFormat::kRg32Uint, subtype);
-  TypeDeterminer td(this);
 
-  ASSERT_TRUE(td.Determine()) << td.error();
+  auto program = Build();
+
+  ASSERT_TRUE(program.IsValid()) << program.Diagnostics().str();
   ASSERT_TRUE(s->Is<Texture>());
   ASSERT_TRUE(s->Is<StorageTexture>());
   EXPECT_TRUE(s->As<StorageTexture>()->type()->Is<U32>());
@@ -134,9 +135,10 @@ TEST_F(StorageTextureTest, I32) {
       type::StorageTexture::SubtypeFor(ImageFormat::kRgba32Sint, Types());
   Type* s = create<StorageTexture>(TextureDimension::k2dArray,
                                    ImageFormat::kRgba32Sint, subtype);
-  TypeDeterminer td(this);
 
-  ASSERT_TRUE(td.Determine()) << td.error();
+  auto program = Build();
+
+  ASSERT_TRUE(program.IsValid()) << program.Diagnostics().str();
   ASSERT_TRUE(s->Is<Texture>());
   ASSERT_TRUE(s->Is<StorageTexture>());
   EXPECT_TRUE(s->As<StorageTexture>()->type()->Is<I32>());

src/type/test_helper.h

@@ -27,7 +27,19 @@ namespace type {
 
 /// Helper class for testing
 template <typename BASE>
-class TestHelperBase : public BASE, public ProgramBuilder {};
+class TestHelperBase : public BASE, public ProgramBuilder {
+ public:
+  /// Builds and returns the program. Must only be called once per test
+  /// @return the built program
+  Program Build() {
+    diag::Formatter formatter;
+    [&]() {
+      ASSERT_TRUE(IsValid()) << "Builder program is not valid\n"
+                             << formatter.format(Diagnostics());
+    }();
+    return Program(std::move(*this));
+  }
+};
 using TestHelper = TestHelperBase<testing::Test>;
 
 template <typename T>

src/validator/validator_control_block_test.cc

@@ -27,7 +27,6 @@
 #include "src/type/f32_type.h"
 #include "src/type/i32_type.h"
 #include "src/type/u32_type.h"
-#include "src/type_determiner.h"
 #include "src/validator/validator_impl.h"
 #include "src/validator/validator_test_helper.h"
 

src/validator/validator_function_test.cc

@@ -25,7 +25,6 @@
 #include "src/type/f32_type.h"
 #include "src/type/i32_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/validator/validator_impl.h"
 #include "src/validator/validator_test_helper.h"
 

src/validator/validator_test.cc

@@ -51,7 +51,6 @@
 #include "src/type/struct_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/validator/validator_impl.h"
 #include "src/validator/validator_test_helper.h"
 
@@ -85,39 +84,6 @@ TEST_F(ValidatorTest, AssignToScalar_Fail) {
             "reference storage: __i32");
 }
 
-TEST_F(ValidatorTest, UsingUndefinedVariable_Fail) {
-  // b = 2;
-
-  SetSource(Source{Source::Location{12, 34}});
-  auto* lhs = Expr("b");
-  auto* rhs = Expr(2);
-  auto* assign = create<ast::AssignmentStatement>(lhs, rhs);
-  WrapInFunction(assign);
-
-  EXPECT_FALSE(td()->Determine());
-  EXPECT_EQ(td()->error(),
-            "12:34 error: v-0006: identifier must be declared before use: b");
-}
-
-TEST_F(ValidatorTest, UsingUndefinedVariableInBlockStatement_Fail) {
-  // {
-  //  b = 2;
-  // }
-
-  SetSource(Source{Source::Location{12, 34}});
-  auto* lhs = Expr("b");
-  auto* rhs = Expr(2);
-
-  auto* body = create<ast::BlockStatement>(ast::StatementList{
-      create<ast::AssignmentStatement>(lhs, rhs),
-  });
-  WrapInFunction(body);
-
-  EXPECT_FALSE(td()->Determine());
-  EXPECT_EQ(td()->error(),
-            "12:34 error: v-0006: identifier must be declared before use: b");
-}
-
 TEST_F(ValidatorTest, AssignCompatibleTypes_Pass) {
   // var a :i32 = 2;
   // a = 2

src/validator/validator_test_helper.cc

@@ -18,9 +18,7 @@
 
 namespace tint {
 
-ValidatorTestHelper::ValidatorTestHelper() {
-  td_ = std::make_unique<TypeDeterminer>(this);
-}
+ValidatorTestHelper::ValidatorTestHelper() = default;
 
 ValidatorTestHelper::~ValidatorTestHelper() = default;
 

src/validator/validator_test_helper.h

@@ -24,7 +24,6 @@
 #include "src/program_builder.h"
 #include "src/semantic/expression.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/validator/validator_impl.h"
 
 namespace tint {
@@ -56,10 +55,6 @@ class ValidatorTestHelper : public ProgramBuilder {
     return *val_;
   }
 
-  /// A handle to type_determiner
-  /// @returns a pointer to the type_determiner object
-  TypeDeterminer* td() const { return td_.get(); }
-
   /// Inserts a variable into the current scope.
   /// @param var the variable to register.
   void RegisterVariable(ast::Variable* var) {
@@ -78,7 +73,6 @@ class ValidatorTestHelper : public ProgramBuilder {
   }
 
  private:
-  std::unique_ptr<TypeDeterminer> td_;
   std::unique_ptr<Program> program_;
   std::unique_ptr<ValidatorImpl> val_;
   std::vector<ast::Variable*> vars_for_testing_;

src/writer/hlsl/generator_impl_function_entry_point_data_test.cc

@@ -24,7 +24,6 @@
 #include "src/ast/stage_decoration.h"
 #include "src/ast/variable.h"
 #include "src/program.h"
-#include "src/type_determiner.h"
 #include "src/writer/hlsl/test_helper.h"
 
 namespace tint {

src/writer/hlsl/generator_impl_function_test.cc

@@ -42,7 +42,6 @@
 #include "src/type/struct_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/hlsl/test_helper.h"
 
 namespace tint {

src/writer/hlsl/generator_impl_import_test.cc

@@ -27,7 +27,6 @@
 #include "src/type/i32_type.h"
 #include "src/type/matrix_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/hlsl/test_helper.h"
 
 namespace tint {

src/writer/hlsl/generator_impl_intrinsic_test.cc

@@ -21,7 +21,6 @@
 #include "src/semantic/call.h"
 #include "src/type/f32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/hlsl/test_helper.h"
 
 namespace tint {

src/writer/hlsl/generator_impl_intrinsic_texture_test.cc

@@ -21,7 +21,6 @@
 #include "src/type/depth_texture_type.h"
 #include "src/type/multisampled_texture_type.h"
 #include "src/type/sampled_texture_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/hlsl/generator_impl.h"
 #include "src/writer/hlsl/test_helper.h"
 

src/writer/hlsl/generator_impl_member_accessor_test.cc

@@ -29,7 +29,6 @@
 #include "src/program.h"
 #include "src/type/struct_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/hlsl/test_helper.h"
 
 namespace tint {

src/writer/hlsl/test_helper.h

@@ -24,7 +24,6 @@
 #include "src/diagnostic/formatter.h"
 #include "src/program_builder.h"
 #include "src/transform/hlsl.h"
-#include "src/type_determiner.h"
 #include "src/writer/hlsl/generator_impl.h"
 
 namespace tint {

src/writer/msl/generator_impl_function_entry_point_data_test.cc

@@ -27,7 +27,6 @@
 #include "src/type/i32_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/msl/generator_impl.h"
 #include "src/writer/msl/test_helper.h"
 

src/writer/msl/generator_impl_function_test.cc

@@ -44,7 +44,6 @@
 #include "src/type/struct_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/msl/generator_impl.h"
 #include "src/writer/msl/test_helper.h"
 

src/writer/msl/generator_impl_import_test.cc

@@ -29,7 +29,6 @@
 #include "src/type/i32_type.h"
 #include "src/type/matrix_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/msl/generator_impl.h"
 #include "src/writer/msl/test_helper.h"
 
@@ -53,7 +52,7 @@ TEST_P(MslImportData_SingleParamTest, FloatScalar) {
   auto param = GetParam();
   auto* call = Call(param.name, 1.f);
 
-  // The call type determination will set the intrinsic data for the ident
+  // The resolver will set the intrinsic data for the ident
   WrapInFunction(call);
 
   GeneratorImpl& gen = Build();

src/writer/msl/generator_impl_intrinsic_test.cc

@@ -21,7 +21,6 @@
 #include "src/semantic/call.h"
 #include "src/type/f32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/msl/generator_impl.h"
 #include "src/writer/msl/test_helper.h"
 

src/writer/msl/generator_impl_intrinsic_texture_test.cc

@@ -19,7 +19,6 @@
 #include "src/type/depth_texture_type.h"
 #include "src/type/multisampled_texture_type.h"
 #include "src/type/sampled_texture_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/msl/generator_impl.h"
 #include "src/writer/msl/test_helper.h"
 

src/writer/msl/generator_impl_type_test.cc

@@ -36,7 +36,6 @@
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/msl/generator_impl.h"
 #include "src/writer/msl/test_helper.h"
 

src/writer/msl/test_helper.h

@@ -22,7 +22,6 @@
 #include "src/ast/module.h"
 #include "src/diagnostic/formatter.h"
 #include "src/program_builder.h"
-#include "src/type_determiner.h"
 #include "src/writer/msl/generator_impl.h"
 
 namespace tint {

src/writer/spirv/builder_accessor_expression_test.cc

@@ -33,7 +33,6 @@
 #include "src/type/struct_type.h"
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_assign_test.cc

@@ -29,7 +29,6 @@
 #include "src/type/i32_type.h"
 #include "src/type/struct_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_binary_expression_test.cc

@@ -29,7 +29,6 @@
 #include "src/type/matrix_type.h"
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_bitcast_expression_test.cc

@@ -19,7 +19,6 @@
 #include "src/program.h"
 #include "src/type/f32_type.h"
 #include "src/type/u32_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_block_test.cc

@@ -22,7 +22,6 @@
 #include "src/ast/scalar_constructor_expression.h"
 #include "src/ast/variable_decl_statement.h"
 #include "src/type/f32_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_call_test.cc

@@ -27,7 +27,6 @@
 #include "src/type/f32_type.h"
 #include "src/type/i32_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_constructor_expression_test.cc

@@ -37,7 +37,6 @@
 #include "src/type/struct_type.h"
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_discard_test.cc

@@ -14,7 +14,6 @@
 
 #include "gtest/gtest.h"
 #include "src/ast/discard_statement.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_function_decoration_test.cc

@@ -25,7 +25,6 @@
 #include "src/ast/variable.h"
 #include "src/ast/workgroup_decoration.h"
 #include "src/semantic/function.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_function_test.cc

@@ -33,7 +33,6 @@
 #include "src/type/i32_type.h"
 #include "src/type/struct_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_function_variable_test.cc

@@ -32,7 +32,6 @@
 #include "src/type/f32_type.h"
 #include "src/type/struct_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_global_variable_test.cc

@@ -38,7 +38,6 @@
 #include "src/type/struct_type.h"
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_ident_expression_test.cc

@@ -25,7 +25,6 @@
 #include "src/type/f32_type.h"
 #include "src/type/i32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_if_test.cc

@@ -28,7 +28,6 @@
 #include "src/ast/sint_literal.h"
 #include "src/type/bool_type.h"
 #include "src/type/i32_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_intrinsic_test.cc

@@ -44,7 +44,6 @@
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_intrinsic_texture_test.cc

@@ -22,7 +22,6 @@
 #include "src/type/multisampled_texture_type.h"
 #include "src/type/sampled_texture_type.h"
 #include "src/type/storage_texture_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_loop_test.cc

@@ -23,7 +23,6 @@
 #include "src/ast/scalar_constructor_expression.h"
 #include "src/ast/sint_literal.h"
 #include "src/type/i32_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_return_test.cc

@@ -22,7 +22,6 @@
 #include "src/ast/type_constructor_expression.h"
 #include "src/type/f32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_switch_test.cc

@@ -27,7 +27,6 @@
 #include "src/ast/switch_statement.h"
 #include "src/type/bool_type.h"
 #include "src/type/i32_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_type_test.cc

@@ -39,7 +39,6 @@
 #include "src/type/u32_type.h"
 #include "src/type/vector_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/builder_unary_op_expression_test.cc

@@ -25,7 +25,6 @@
 #include "src/type/f32_type.h"
 #include "src/type/i32_type.h"
 #include "src/type/vector_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/builder.h"
 #include "src/writer/spirv/spv_dump.h"
 #include "src/writer/spirv/test_helper.h"

src/writer/spirv/test_helper.h

@@ -25,7 +25,6 @@
 #include "src/diagnostic/formatter.h"
 #include "src/program_builder.h"
 #include "src/transform/spirv.h"
-#include "src/type_determiner.h"
 #include "src/writer/spirv/binary_writer.h"
 #include "src/writer/spirv/builder.h"
 

src/writer/wgsl/generator_impl_function_test.cc

@@ -29,7 +29,6 @@
 #include "src/type/f32_type.h"
 #include "src/type/i32_type.h"
 #include "src/type/void_type.h"
-#include "src/type_determiner.h"
 #include "src/writer/wgsl/generator_impl.h"
 #include "src/writer/wgsl/test_helper.h"
 

src/writer/wgsl/test_helper.h

@@ -20,7 +20,6 @@
 
 #include "gtest/gtest.h"
 #include "src/program_builder.h"
-#include "src/type_determiner.h"
 #include "src/writer/wgsl/generator_impl.h"
 
 namespace tint {
@@ -31,7 +30,7 @@ namespace wgsl {
 template <typename BASE>
 class TestHelperBase : public BASE, public ProgramBuilder {
  public:
-  TestHelperBase() : td(this) {}
+  TestHelperBase() = default;
 
   ~TestHelperBase() override = default;
 
@@ -48,8 +47,6 @@ class TestHelperBase : public BASE, public ProgramBuilder {
     return *gen_;
   }
 
-  /// The type determiner
-  TypeDeterminer td;
   /// The program built with a call to Build()
   std::unique_ptr<Program> program;