convert /terraform to use new provider config

Change all ModuleInstances in provider types to plain Modules

terraform/context_apply_test.go

@@ -1333,7 +1333,7 @@ func TestContext2Apply_destroyDependsOnStateOnly(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -1358,7 +1358,7 @@ func TestContext2Apply_destroyDependsOnStateOnly(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -1431,7 +1431,7 @@ func TestContext2Apply_destroyDependsOnStateOnlyModule(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	child.SetResourceInstanceCurrent(
@@ -1456,7 +1456,7 @@ func TestContext2Apply_destroyDependsOnStateOnlyModule(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -2828,7 +2828,7 @@ func TestContext2Apply_orphanResource(t *testing.T) {
 	want := states.BuildState(func(s *states.SyncState) {
 		providerAddr := addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		}
 		zeroAddr := addrs.Resource{
 			Mode: addrs.ManagedResourceMode,
@@ -7051,7 +7051,7 @@ func TestContext2Apply_errorDestroy(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("test"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 		}),
@@ -7191,7 +7191,7 @@ func TestContext2Apply_errorUpdateNullNew(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("aws"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 		}),
@@ -8618,7 +8618,7 @@ func TestContext2Apply_createBefore_depends(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -8644,7 +8644,7 @@ func TestContext2Apply_createBefore_depends(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -8751,7 +8751,7 @@ func TestContext2Apply_singleDestroy(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -8777,7 +8777,7 @@ func TestContext2Apply_singleDestroy(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -9684,7 +9684,7 @@ func TestContext2Apply_destroyWithProviders(t *testing.T) {
 	state.Modules["module.mod.module.removed"].Resources["aws_instance.child"].ProviderConfig = addrs.AbsProviderConfig{
 		Provider: addrs.NewLegacyProvider("aws"),
 		Alias:    "bar",
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 	}
 
 	if _, diags := ctx.Plan(); diags.HasErrors() {
@@ -10108,7 +10108,7 @@ func TestContext2Apply_issue19908(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("test"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 		}),
@@ -10236,7 +10236,7 @@ func TestContext2Apply_moduleReplaceCycle(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 
@@ -10253,7 +10253,7 @@ func TestContext2Apply_moduleReplaceCycle(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 
@@ -10296,7 +10296,7 @@ func TestContext2Apply_moduleReplaceCycle(t *testing.T) {
 					}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance.Child("a", addrs.NoKey)),
 					ProviderAddr: addrs.AbsProviderConfig{
 						Provider: addrs.NewLegacyProvider("aws"),
-						Module:   addrs.RootModuleInstance,
+						Module:   addrs.RootModule,
 					},
 					ChangeSrc: plans.ChangeSrc{
 						Action: aAction,
@@ -10312,7 +10312,7 @@ func TestContext2Apply_moduleReplaceCycle(t *testing.T) {
 					}.Instance(addrs.IntKey(0)).Absolute(addrs.RootModuleInstance.Child("b", addrs.NoKey)),
 					ProviderAddr: addrs.AbsProviderConfig{
 						Provider: addrs.NewLegacyProvider("aws"),
-						Module:   addrs.RootModuleInstance,
+						Module:   addrs.RootModule,
 					},
 					ChangeSrc: plans.ChangeSrc{
 						Action: plans.DeleteThenCreate,
@@ -10363,7 +10363,7 @@ func TestContext2Apply_destroyDataCycle(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("null"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -10378,7 +10378,7 @@ func TestContext2Apply_destroyDataCycle(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("null"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -10453,7 +10453,7 @@ func TestContext2Apply_taintedDestroyFailure(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -10468,7 +10468,7 @@ func TestContext2Apply_taintedDestroyFailure(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -10483,7 +10483,7 @@ func TestContext2Apply_taintedDestroyFailure(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 
@@ -10660,7 +10660,7 @@ func TestContext2Apply_cbdCycle(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -10685,7 +10685,7 @@ func TestContext2Apply_cbdCycle(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -10700,7 +10700,7 @@ func TestContext2Apply_cbdCycle(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 

terraform/context_import_test.go

@@ -117,7 +117,7 @@ func TestContextImport_collision(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("aws"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 		}),
@@ -606,7 +606,7 @@ func TestContextImport_moduleDiff(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("aws"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 		}),
@@ -667,7 +667,7 @@ func TestContextImport_moduleExisting(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("aws"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 		}),

terraform/context_input.go

@@ -160,7 +160,7 @@ func (c *Context) Input(mode InputMode) tfdiags.Diagnostics {
 			absConfigAddr := addrs.AbsProviderConfig{
 				Provider: providerFqn,
 				Alias:    pa.Alias,
-				Module:   c.Config().Path.UnkeyedInstanceShim(),
+				Module:   c.Config().Path,
 			}
 			c.providerInputConfig[absConfigAddr.String()] = vals
 

terraform/context_input_test.go

@@ -480,7 +480,7 @@ func TestContext2Input_dataSourceRequiresRefresh(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("null"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})

terraform/context_plan_test.go

@@ -5052,7 +5052,7 @@ func TestContext2Plan_ignoreChangesInMap(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("test"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})

terraform/context_refresh_test.go

@@ -105,7 +105,7 @@ func TestContext2Refresh_dynamicAttr(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("test"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})
@@ -1742,7 +1742,7 @@ func TestContext2Refresh_schemaUpgradeFlatmap(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("test"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})
@@ -1828,7 +1828,7 @@ func TestContext2Refresh_schemaUpgradeJSON(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("test"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})
@@ -1999,7 +1999,7 @@ func TestRefresh_updateDependencies(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -2014,7 +2014,7 @@ func TestRefresh_updateDependencies(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("aws"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 

terraform/eval_context_builtin.go

@@ -108,7 +108,7 @@ func (ctx *BuiltinEvalContext) Input() UIInput {
 func (ctx *BuiltinEvalContext) InitProvider(addr addrs.AbsProviderConfig) (providers.Interface, error) {
 	ctx.once.Do(ctx.init)
 	absAddr := addr
-	if !absAddr.Module.Equal(ctx.Path()) {
+	if !absAddr.Module.Equal(ctx.Path().Module()) {
 		// This indicates incorrect use of InitProvider: it should be used
 		// only from the module that the provider configuration belongs to.
 		panic(fmt.Sprintf("%s initialized by wrong module %s", absAddr, ctx.Path()))
@@ -153,7 +153,7 @@ func (ctx *BuiltinEvalContext) ProviderSchema(addr addrs.AbsProviderConfig) *Pro
 
 func (ctx *BuiltinEvalContext) CloseProvider(addr addrs.AbsProviderConfig) error {
 	ctx.once.Do(ctx.init)
-	if !addr.Module.Equal(ctx.Path()) {
+	if !addr.Module.Equal(ctx.Path().Module()) {
 		// This indicates incorrect use of CloseProvider: it should be used
 		// only from the module that the provider configuration belongs to.
 		panic(fmt.Sprintf("%s closed by wrong module %s", addr, ctx.Path()))
@@ -175,7 +175,7 @@ func (ctx *BuiltinEvalContext) CloseProvider(addr addrs.AbsProviderConfig) error
 func (ctx *BuiltinEvalContext) ConfigureProvider(addr addrs.AbsProviderConfig, cfg cty.Value) tfdiags.Diagnostics {
 	var diags tfdiags.Diagnostics
 	absAddr := addr
-	if !absAddr.Module.Equal(ctx.Path()) {
+	if !absAddr.Module.Equal(ctx.Path().Module()) {
 		// This indicates incorrect use of ConfigureProvider: it should be used
 		// only from the module that the provider configuration belongs to.
 		panic(fmt.Sprintf("%s configured by wrong module %s", absAddr, ctx.Path()))
@@ -206,7 +206,7 @@ func (ctx *BuiltinEvalContext) ProviderInput(pc addrs.AbsProviderConfig) map[str
 	ctx.ProviderLock.Lock()
 	defer ctx.ProviderLock.Unlock()
 
-	if !pc.Module.Equal(ctx.Path()) {
+	if !pc.Module.Equal(ctx.Path().Module()) {
 		// This indicates incorrect use of InitProvider: it should be used
 		// only from the module that the provider configuration belongs to.
 		panic(fmt.Sprintf("%s initialized by wrong module %s", pc, ctx.Path()))
@@ -222,7 +222,7 @@ func (ctx *BuiltinEvalContext) ProviderInput(pc addrs.AbsProviderConfig) map[str
 
 func (ctx *BuiltinEvalContext) SetProviderInput(pc addrs.AbsProviderConfig, c map[string]cty.Value) {
 	absProvider := pc
-	if !absProvider.Module.Equal(ctx.Path()) {
+	if !absProvider.Module.Equal(ctx.Path().Module()) {
 		// This indicates incorrect use of InitProvider: it should be used
 		// only from the module that the provider configuration belongs to.
 		panic(fmt.Sprintf("%s initialized by wrong module %s", absProvider, ctx.Path()))

terraform/eval_context_builtin_test.go

@@ -25,11 +25,11 @@ func TestBuiltinEvalContextProviderInput(t *testing.T) {
 	ctx2.ProviderLock = &lock
 
 	providerAddr1 := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 		Provider: addrs.NewLegacyProvider("foo"),
 	}
 	providerAddr2 := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance.Child("child", addrs.NoKey),
+		Module:   addrs.RootModule.Child("child"),
 		Provider: addrs.NewLegacyProvider("foo"),
 	}
 
@@ -65,11 +65,11 @@ func TestBuildingEvalContextInitProvider(t *testing.T) {
 	}
 
 	providerAddrDefault := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 		Provider: addrs.NewLegacyProvider("test"),
 	}
 	providerAddrAlias := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 		Provider: addrs.NewLegacyProvider("test"),
 		Alias:    "foo",
 	}

terraform/eval_provider_test.go

@@ -17,7 +17,7 @@ func TestBuildProviderConfig(t *testing.T) {
 		"set_in_config": cty.StringVal("config"),
 	})
 	providerAddr := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 		Provider: addrs.NewLegacyProvider("foo"),
 	}
 
@@ -69,7 +69,7 @@ func TestEvalConfigProvider(t *testing.T) {
 	provider := mockProviderWithConfigSchema(simpleTestSchema())
 	rp := providers.Interface(provider)
 	providerAddr := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 		Provider: addrs.NewLegacyProvider("foo"),
 	}
 	n := &EvalConfigProvider{
@@ -103,7 +103,7 @@ func TestEvalInitProvider_impl(t *testing.T) {
 
 func TestEvalInitProvider(t *testing.T) {
 	providerAddr := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 		Provider: addrs.NewLegacyProvider("foo"),
 	}
 	n := &EvalInitProvider{
@@ -125,7 +125,7 @@ func TestEvalInitProvider(t *testing.T) {
 
 func TestEvalCloseProvider(t *testing.T) {
 	providerAddr := addrs.AbsProviderConfig{
-		Module:   addrs.RootModuleInstance,
+		Module:   addrs.RootModule,
 		Provider: addrs.NewLegacyProvider("foo"),
 	}
 	n := &EvalCloseProvider{

terraform/graph_builder_apply_test.go

@@ -554,7 +554,7 @@ func TestApplyGraphBuilder_updateFromOrphan(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 	root.SetResourceInstanceCurrent(
@@ -579,7 +579,7 @@ func TestApplyGraphBuilder_updateFromOrphan(t *testing.T) {
 		},
 		addrs.AbsProviderConfig{
 			Provider: addrs.NewLegacyProvider("test"),
-			Module:   addrs.RootModuleInstance,
+			Module:   addrs.RootModule,
 		},
 	)
 

terraform/node_data_refresh_test.go

@@ -134,7 +134,7 @@ func TestNodeRefreshableDataResourceDynamicExpand_scaleIn(t *testing.T) {
 			Config: m.Module.DataResources["data.aws_instance.foo"],
 			ResolvedProvider: addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		},
 	}

terraform/node_provider_abstract.go

@@ -26,7 +26,7 @@ type NodeAbstractProvider struct {
 }
 
 var (
-	_ GraphNodeModuleInstance             = (*NodeAbstractProvider)(nil)
+	_ GraphNodeModulePath                 = (*NodeAbstractProvider)(nil)
 	_ RemovableIfNotTargeted              = (*NodeAbstractProvider)(nil)
 	_ GraphNodeReferencer                 = (*NodeAbstractProvider)(nil)
 	_ GraphNodeProvider                   = (*NodeAbstractProvider)(nil)
@@ -41,12 +41,12 @@ func (n *NodeAbstractProvider) Name() string {
 
 // GraphNodeModuleInstance
 func (n *NodeAbstractProvider) Path() addrs.ModuleInstance {
-	return n.Addr.Module
+	return n.Addr.Module.UnkeyedInstanceShim()
 }
 
 // GraphNodeModulePath
 func (n *NodeAbstractProvider) ModulePath() addrs.Module {
-	return n.Addr.Module.Module()
+	return n.Addr.Module
 }
 
 // RemovableIfNotTargeted

terraform/transform_attach_schema.go

@@ -69,7 +69,7 @@ func (t *AttachSchemaTransformer) Transform(g *Graph) error {
 				if t.Config == nil {
 					providerFqn = addrs.NewLegacyProvider(p.LocalName)
 				} else {
-					modConfig := t.Config.DescendentForInstance(tv.Path())
+					modConfig := t.Config.Descendent(tv.ModulePath())
 					if modConfig == nil {
 						providerFqn = addrs.NewLegacyProvider(p.LocalName)
 					} else {

terraform/transform_diff_test.go

@@ -45,7 +45,7 @@ func TestDiffTransformer(t *testing.T) {
 					}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
 					ProviderAddr: addrs.AbsProviderConfig{
 						Provider: addrs.NewLegacyProvider("aws"),
-						Module:   addrs.RootModuleInstance,
+						Module:   addrs.RootModule,
 					},
 					ChangeSrc: plans.ChangeSrc{
 						Action: plans.Update,

terraform/transform_import_state.go

@@ -24,7 +24,7 @@ func (t *ImportStateTransformer) Transform(g *Graph) error {
 			defaultFQN := target.Addr.Resource.Resource.DefaultProvider()
 			providerAddr = addrs.AbsProviderConfig{
 				Provider: defaultFQN,
-				Module:   target.Addr.Module,
+				Module:   target.Addr.Module.Module(),
 			}
 		}
 
@@ -48,7 +48,7 @@ type graphNodeImportState struct {
 }
 
 var (
-	_ GraphNodeModuleInstance    = (*graphNodeImportState)(nil)
+	_ GraphNodeModulePath        = (*graphNodeImportState)(nil)
 	_ GraphNodeEvalable          = (*graphNodeImportState)(nil)
 	_ GraphNodeProviderConsumer  = (*graphNodeImportState)(nil)
 	_ GraphNodeDynamicExpandable = (*graphNodeImportState)(nil)
@@ -88,6 +88,11 @@ func (n *graphNodeImportState) Path() addrs.ModuleInstance {
 	return n.Addr.Module
 }
 
+// GraphNodeModulePath
+func (n *graphNodeImportState) ModulePath() addrs.Module {
+	return n.Addr.Module.Module()
+}
+
 // GraphNodeEvalable impl.
 func (n *graphNodeImportState) EvalTree() EvalNode {
 	var provider providers.Interface

terraform/transform_orphan_resource_test.go

@@ -28,7 +28,7 @@ func TestOrphanResourceInstanceTransformer(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 
@@ -47,7 +47,7 @@ func TestOrphanResourceInstanceTransformer(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})
@@ -96,7 +96,7 @@ func TestOrphanResourceInstanceTransformer_countGood(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 		s.SetResourceInstanceCurrent(
@@ -113,7 +113,7 @@ func TestOrphanResourceInstanceTransformer_countGood(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})
@@ -161,7 +161,7 @@ func TestOrphanResourceInstanceTransformer_countBad(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 		s.SetResourceInstanceCurrent(
@@ -178,7 +178,7 @@ func TestOrphanResourceInstanceTransformer_countBad(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})
@@ -226,7 +226,7 @@ func TestOrphanResourceInstanceTransformer_modules(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 		s.SetResourceInstanceCurrent(
@@ -243,7 +243,7 @@ func TestOrphanResourceInstanceTransformer_modules(t *testing.T) {
 			},
 			addrs.AbsProviderConfig{
 				Provider: addrs.NewLegacyProvider("aws"),
-				Module:   addrs.RootModuleInstance,
+				Module:   addrs.RootModule,
 			},
 		)
 	})

terraform/transform_provider.go

@@ -44,7 +44,7 @@ func TransformProviders(providers []string, concrete ConcreteProviderNodeFunc, c
 //
 // Name returns the full name of the provider in the config.
 type GraphNodeProvider interface {
-	GraphNodeModuleInstance
+	GraphNodeModulePath
 	ProviderAddr() addrs.AbsProviderConfig
 	Name() string
 }
@@ -53,7 +53,7 @@ type GraphNodeProvider interface {
 // provider must implement. The CloseProviderName returned is the name of
 // the provider they satisfy.
 type GraphNodeCloseProvider interface {
-	GraphNodeModuleInstance
+	GraphNodeModulePath
 	CloseProviderAddr() addrs.AbsProviderConfig
 }
 
@@ -63,7 +63,7 @@ type GraphNodeCloseProvider interface {
 // or in an ancestor module, with the resulting absolute address passed to
 // SetProvider.
 type GraphNodeProviderConsumer interface {
-	GraphNodeModuleInstance
+	GraphNodeModulePath
 	// ProvidedBy returns the address of the provider configuration the node
 	// refers to, if available. The following value types may be returned:
 	//
@@ -139,7 +139,7 @@ func (t *ProviderTransformer) Transform(g *Graph) error {
 			case addrs.LocalProviderConfig:
 				// ProvidedBy() return a LocalProviderConfig when the resource
 				// contains a `provider` attribute
-				modPath := pv.Path()
+				modPath := pv.ModulePath()
 				if t.Config == nil {
 					absPc.Provider = addrs.NewLegacyProvider(p.LocalName)
 					absPc.Module = modPath
@@ -147,7 +147,7 @@ func (t *ProviderTransformer) Transform(g *Graph) error {
 					break
 				}
 
-				modConfig := t.Config.DescendentForInstance(modPath)
+				modConfig := t.Config.Descendent(modPath)
 				if modConfig == nil {
 					absPc.Provider = addrs.NewLegacyProvider(p.LocalName)
 				} else {
@@ -159,7 +159,7 @@ func (t *ProviderTransformer) Transform(g *Graph) error {
 			case nil:
 				// No provider found in config or state; fall back to implied default provider.
 				absPc.Provider = pv.ImpliedProvider()
-				absPc.Module = pv.Path()
+				absPc.Module = pv.ModulePath()
 				log.Printf("[TRACE] ProviderTransformer: %s is provided by %s or inherited equivalent", dag.VertexName(v), absPc)
 
 			default:
@@ -216,7 +216,7 @@ func (t *ProviderTransformer) Transform(g *Graph) error {
 			// start up the provider and fetch its schema.
 			if _, exists := needConfigured[key]; target == nil && !exists {
 				stubAddr := addrs.AbsProviderConfig{
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 					Provider: p.Provider,
 				}
 				stub := &NodeEvalableProvider{
@@ -364,7 +364,7 @@ func (t *MissingProviderTransformer) Transform(g *Graph) error {
 				log.Println("[TRACE] MissingProviderTransformer: skipping implication of aliased config", p)
 				continue
 			}
-			modConfig := t.Config.DescendentForInstance(pv.Path())
+			modConfig := t.Config.Descendent(pv.ModulePath())
 			if modConfig == nil {
 				providerFqn = addrs.NewLegacyProvider(p.LocalName)
 			} else {
@@ -427,7 +427,7 @@ func (t *ParentProviderTransformer) Transform(g *Graph) error {
 
 		// Also require non-empty path, since otherwise we're in the root
 		// module and so cannot have a parent.
-		if len(pn.Path()) <= 1 {
+		if len(pn.ModulePath()) <= 1 {
 			continue
 		}
 
@@ -513,6 +513,11 @@ func (n *graphNodeCloseProvider) Name() string {
 
 // GraphNodeModuleInstance impl.
 func (n *graphNodeCloseProvider) Path() addrs.ModuleInstance {
+	return n.Addr.Module.UnkeyedInstanceShim()
+}
+
+// GraphNodeModulePath
+func (n *graphNodeCloseProvider) ModulePath() addrs.Module {
 	return n.Addr.Module
 }
 
@@ -562,6 +567,7 @@ type graphNodeProxyProvider struct {
 }
 
 var (
+	_ GraphNodeModulePath = (*graphNodeProxyProvider)(nil)
 	_ GraphNodeProvider   = (*graphNodeProxyProvider)(nil)
 )
 
@@ -570,6 +576,10 @@ func (n *graphNodeProxyProvider) ProviderAddr() addrs.AbsProviderConfig {
 }
 
 func (n *graphNodeProxyProvider) Path() addrs.ModuleInstance {
+	return n.addr.Module.UnkeyedInstanceShim()
+}
+
+func (n *graphNodeProxyProvider) ModulePath() addrs.Module {
 	return n.addr.Module
 }
 
@@ -644,19 +654,7 @@ func (t *ProviderConfigTransformer) transform(g *Graph, c *configs.Config) error
 func (t *ProviderConfigTransformer) transformSingle(g *Graph, c *configs.Config) error {
 	// Get the module associated with this configuration tree node
 	mod := c.Module
-	staticPath := c.Path
+	path := c.Path
-
-	// We actually need a dynamic module path here, but we've not yet updated
-	// our graph builders enough to support expansion of module calls with
-	// "count" and "for_each" set, so for now we'll shim this by converting to
-	// a dynamic path with no keys. At the time of writing this is the only
-	// possible kind of dynamic path anyway.
-	path := make(addrs.ModuleInstance, len(staticPath))
-	for i, name := range staticPath {
-		path[i] = addrs.ModuleInstanceStep{
-			Name: name,
-		}
-	}
 
 	// add all providers from the configuration
 	for _, p := range mod.ProviderConfigs {
@@ -720,19 +718,6 @@ func (t *ProviderConfigTransformer) addProxyProviders(g *Graph, c *configs.Confi
 		}
 	}
 
-	// We currently don't support count/for_each for modules and so we must
-	// shim our path and parentPath into module instances here so that the
-	// rest of Terraform can behave as if we do. This shimming should be
-	// removed later as part of implementing count/for_each for modules.
-	instPath := make(addrs.ModuleInstance, len(path))
-	for i, name := range path {
-		instPath[i] = addrs.ModuleInstanceStep{Name: name}
-	}
-	parentInstPath := make(addrs.ModuleInstance, len(parentPath))
-	for i, name := range parentPath {
-		parentInstPath[i] = addrs.ModuleInstanceStep{Name: name}
-	}
-
 	if parentCfg == nil {
 		// this can't really happen during normal execution.
 		return fmt.Errorf("parent module config not found for %s", c.Path.String())
@@ -744,13 +729,13 @@ func (t *ProviderConfigTransformer) addProxyProviders(g *Graph, c *configs.Confi
 		fqn := c.Module.ProviderForLocalConfig(pair.InChild.Addr())
 		fullAddr := addrs.AbsProviderConfig{
 			Provider: fqn,
-			Module:   instPath,
+			Module:   path,
 			Alias:    pair.InChild.Addr().Alias,
 		}
 
 		fullParentAddr := addrs.AbsProviderConfig{
 			Provider: fqn,
-			Module:   parentInstPath,
+			Module:   parentPath,
 			Alias:    pair.InParent.Addr().Alias,
 		}
 
@@ -802,7 +787,7 @@ func (t *ProviderConfigTransformer) attachProviderConfigs(g *Graph) error {
 		addr := apn.ProviderAddr()
 
 		// Get the configuration.
-		mc := t.Config.DescendentForInstance(addr.Module)
+		mc := t.Config.Descendent(addr.Module)
 		if mc == nil {
 			log.Printf("[TRACE] ProviderConfigTransformer: no configuration available for %s", addr.String())
 			continue

terraform/transform_provisioner_test.go

@@ -72,7 +72,7 @@ func TestMissingProvisionerTransformer_module(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("aws"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 			s.SetResourceInstanceCurrent(
@@ -89,7 +89,7 @@ func TestMissingProvisionerTransformer_module(t *testing.T) {
 				},
 				addrs.AbsProviderConfig{
 					Provider: addrs.NewLegacyProvider("aws"),
-					Module:   addrs.RootModuleInstance,
+					Module:   addrs.RootModule,
 				},
 			)
 		})