Parse *.tf.json for references and symbols

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/hashicorp/go-memdb v1.3.2
 	github.com/hashicorp/go-multierror v1.1.1
 	github.com/hashicorp/go-version v1.3.0
-	github.com/hashicorp/hcl-lang v0.0.0-20211007132635-f22d3c2adf6c
+	github.com/hashicorp/hcl-lang v0.0.0-20211014152429-0bfbdcca0902
 	github.com/hashicorp/hcl/v2 v2.10.1
 	github.com/hashicorp/terraform-exec v0.15.0
 	github.com/hashicorp/terraform-json v0.13.0

go.sum

@@ -191,8 +191,8 @@ github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uG
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/hashicorp/hcl-lang v0.0.0-20210803155453-7c098e4940bc/go.mod h1:xzXU6Fn+TWVaZUFxV8CyAsObi2oMgSEFAmLvCx2ArzM=
-github.com/hashicorp/hcl-lang v0.0.0-20211007132635-f22d3c2adf6c h1:98h0kdFx2qqS8lMAbGxR+b/HO3d52NdJsIgzG6Ikucg=
-github.com/hashicorp/hcl-lang v0.0.0-20211007132635-f22d3c2adf6c/go.mod h1:D7lBT7dekCcgbxzIHHBFvaRm42u5jY0pDoiC2J6A2KM=
+github.com/hashicorp/hcl-lang v0.0.0-20211014152429-0bfbdcca0902 h1:FxmNMZrjISkvGoXdoySct4dnk40KwhspPj9LvAaPPJo=
+github.com/hashicorp/hcl-lang v0.0.0-20211014152429-0bfbdcca0902/go.mod h1:D7lBT7dekCcgbxzIHHBFvaRm42u5jY0pDoiC2J6A2KM=
 github.com/hashicorp/hcl/v2 v2.10.1 h1:h4Xx4fsrRE26ohAk/1iGF/JBqRQbyUqu5Lvj60U54ys=
 github.com/hashicorp/hcl/v2 v2.10.1/go.mod h1:FwWsfWEjyV/CMj8s/gqAuiviY72rJ1/oayI9WftqcKg=
 github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=

internal/langserver/handlers/code_lens_test.go

@@ -184,7 +184,7 @@ output "test" {
 							"arguments": [
 								{
 									"line": 0,
-									"character": 8
+									"character": 7
 								},
 								{
 									"includeDeclaration": false

internal/langserver/handlers/workspace_symbol.go

@@ -12,7 +12,7 @@ import (
 func (h *logHandler) WorkspaceSymbol(ctx context.Context, params lsp.WorkspaceSymbolParams) ([]lsp.SymbolInformation, error) {
 	var symbols []lsp.SymbolInformation
 
-	mm, err := lsctx.ModuleFinder(ctx)
+	mf, err := lsctx.ModuleFinder(ctx)
 	if err != nil {
 		return symbols, err
 	}
@@ -22,7 +22,7 @@ func (h *logHandler) WorkspaceSymbol(ctx context.Context, params lsp.WorkspaceSy
 		return nil, err
 	}
 
-	modules, err := mm.ListModules()
+	modules, err := mf.ListModules()
 	if err != nil {
 		return nil, err
 	}
@@ -33,6 +33,9 @@ func (h *logHandler) WorkspaceSymbol(ctx context.Context, params lsp.WorkspaceSy
 			return symbols, err
 		}
 
+		schema, _ := mf.SchemaForModule(mod.Path)
+		d.SetSchema(schema)
+
 		modSymbols, err := d.Symbols(params.Query)
 		if err != nil {
 			continue

internal/terraform/ast/module.go

@@ -12,8 +12,14 @@ func (mf ModFilename) String() string {
 	return string(mf)
 }
 
+func (mf ModFilename) IsJSON() bool {
+	return strings.HasSuffix(string(mf), ".json")
+}
+
 func IsModuleFilename(name string) bool {
-	return strings.HasSuffix(name, ".tf") && !isIgnoredFile(name)
+	return (strings.HasSuffix(name, ".tf") ||
+		strings.HasSuffix(name, ".tf.json")) &&
+		!isIgnoredFile(name)
 }
 
 type ModFiles map[ModFilename]*hcl.File

internal/terraform/parser/module.go

@@ -3,8 +3,6 @@ package parser
 import (
 	"path/filepath"
 
-	"github.com/hashicorp/hcl/v2"
-	"github.com/hashicorp/hcl/v2/hclsyntax"
 	"github.com/hashicorp/terraform-ls/internal/terraform/ast"
 )
 
@@ -37,8 +35,10 @@ func ParseModuleFiles(fs FS, modPath string) (ast.ModFiles, ast.ModDiags, error)
 			return nil, nil, err
 		}
 
-		f, pDiags := hclsyntax.ParseConfig(src, name, hcl.InitialPos)
 		filename := ast.ModFilename(name)
+
+		f, pDiags := parseFile(src, filename)
+
 		diags[filename] = pDiags
 		if f != nil {
 			files[filename] = f

internal/terraform/parser/parser.go

@@ -2,10 +2,26 @@ package parser
 
 import (
 	"io/fs"
+
+	"github.com/hashicorp/hcl/v2"
+	"github.com/hashicorp/hcl/v2/hclsyntax"
+	"github.com/hashicorp/hcl/v2/json"
 )
 
 type FS interface {
 	fs.FS
 	ReadDir(name string) ([]fs.DirEntry, error)
 	ReadFile(name string) ([]byte, error)
 }
+
+type filename interface {
+	IsJSON() bool
+	String() string
+}
+
+func parseFile(src []byte, filename filename) (*hcl.File, hcl.Diagnostics) {
+	if filename.IsJSON() {
+		return json.Parse(src, filename.String())
+	}
+	return hclsyntax.ParseConfig(src, filename.String(), hcl.InitialPos)
+}