Auto merge of #85057 - Dylan-DPC:rollup-efaseq2, r=Dylan-DPC

Rollup of 6 pull requests

Successful merges:

 - #76808 (Improve diagnostics for functions in `struct` definitions)
 - #84887 (Remove SpanInterner::get)
 - #85034 (fix null pointer error messages)
 - #85038 (Don't stop running rustdoc-gui tests at first failure)
 - #85044 (Use `path.exists()` instead of `fs::metadata(path).is_ok()`)
 - #85052 (rustdoc: Link to the docs on namespaces when an unknown disambiguator is found)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

compiler/rustc_codegen_ssa/src/back/linker.rs

@@ -772,7 +772,7 @@ impl<'a> Linker for MsvcLinker<'a> {
         // check to see if the file is there and just omit linking to it if it's
         // not present.
         let name = format!("{}.dll.lib", lib);
-        if fs::metadata(&path.join(&name)).is_ok() {
+        if path.join(&name).exists() {
             self.cmd.arg(name);
         }
     }

compiler/rustc_middle/src/mir/interpret/error.rs

@@ -170,22 +170,25 @@ impl fmt::Display for InvalidProgramInfo<'_> {
 /// Details of why a pointer had to be in-bounds.
 #[derive(Debug, Copy, Clone, TyEncodable, TyDecodable, HashStable)]
 pub enum CheckInAllocMsg {
+    /// We are access memory.
     MemoryAccessTest,
+    /// We are doing pointer arithmetic.
     PointerArithmeticTest,
+    /// None of the above -- generic/unspecific inbounds test.
     InboundsTest,
 }
 
 impl fmt::Display for CheckInAllocMsg {
     /// When this is printed as an error the context looks like this
-    /// "{test name} failed: pointer must be in-bounds at offset..."
+    /// "{msg}pointer must be in-bounds at offset..."
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(
             f,
             "{}",
             match *self {
-                CheckInAllocMsg::MemoryAccessTest => "memory access",
+                CheckInAllocMsg::MemoryAccessTest => "memory access failed: ",
-                CheckInAllocMsg::PointerArithmeticTest => "pointer arithmetic",
+                CheckInAllocMsg::PointerArithmeticTest => "pointer arithmetic failed: ",
-                CheckInAllocMsg::InboundsTest => "inbounds test",
+                CheckInAllocMsg::InboundsTest => "",
             }
         )
     }
@@ -299,18 +302,18 @@ impl fmt::Display for UndefinedBehaviorInfo<'_> {
             }
             PointerOutOfBounds { ptr, msg, allocation_size } => write!(
                 f,
-                "{} failed: pointer must be in-bounds at offset {}, \
+                "{}pointer must be in-bounds at offset {}, \
                            but is outside bounds of {} which has size {}",
                 msg,
                 ptr.offset.bytes(),
                 ptr.alloc_id,
                 allocation_size.bytes()
             ),
-            DanglingIntPointer(_, CheckInAllocMsg::InboundsTest) => {
+            DanglingIntPointer(0, CheckInAllocMsg::InboundsTest) => {
-                write!(f, "null pointer is not allowed for this operation")
+                write!(f, "null pointer is not a valid pointer for this operation")
             }
             DanglingIntPointer(i, msg) => {
-                write!(f, "{} failed: 0x{:x} is not a valid pointer", msg, i)
+                write!(f, "{}0x{:x} is not a valid pointer", msg, i)
             }
             AlignmentCheckFailed { required, has } => write!(
                 f,

compiler/rustc_parse/src/parser/item.rs

@@ -1124,11 +1124,11 @@ impl<'a> Parser<'a> {
                 if !this.recover_nested_adt_item(kw::Enum)? {
                     return Ok((None, TrailingToken::None));
                 }
-                let ident = this.parse_ident()?;
+                let ident = this.parse_field_ident("enum", vlo)?;
 
                 let struct_def = if this.check(&token::OpenDelim(token::Brace)) {
                     // Parse a struct variant.
-                    let (fields, recovered) = this.parse_record_struct_body()?;
+                    let (fields, recovered) = this.parse_record_struct_body("struct")?;
                     VariantData::Struct(fields, recovered)
                 } else if this.check(&token::OpenDelim(token::Paren)) {
                     VariantData::Tuple(this.parse_tuple_struct_body()?, DUMMY_NODE_ID)
@@ -1182,7 +1182,7 @@ impl<'a> Parser<'a> {
                 VariantData::Unit(DUMMY_NODE_ID)
             } else {
                 // If we see: `struct Foo<T> where T: Copy { ... }`
-                let (fields, recovered) = self.parse_record_struct_body()?;
+                let (fields, recovered) = self.parse_record_struct_body("struct")?;
                 VariantData::Struct(fields, recovered)
             }
         // No `where` so: `struct Foo<T>;`
@@ -1190,7 +1190,7 @@ impl<'a> Parser<'a> {
             VariantData::Unit(DUMMY_NODE_ID)
         // Record-style struct definition
         } else if self.token == token::OpenDelim(token::Brace) {
-            let (fields, recovered) = self.parse_record_struct_body()?;
+            let (fields, recovered) = self.parse_record_struct_body("struct")?;
             VariantData::Struct(fields, recovered)
         // Tuple-style struct definition with optional where-clause.
         } else if self.token == token::OpenDelim(token::Paren) {
@@ -1220,10 +1220,10 @@ impl<'a> Parser<'a> {
 
         let vdata = if self.token.is_keyword(kw::Where) {
             generics.where_clause = self.parse_where_clause()?;
-            let (fields, recovered) = self.parse_record_struct_body()?;
+            let (fields, recovered) = self.parse_record_struct_body("union")?;
             VariantData::Struct(fields, recovered)
         } else if self.token == token::OpenDelim(token::Brace) {
-            let (fields, recovered) = self.parse_record_struct_body()?;
+            let (fields, recovered) = self.parse_record_struct_body("union")?;
             VariantData::Struct(fields, recovered)
         } else {
             let token_str = super::token_descr(&self.token);
@@ -1236,12 +1236,15 @@ impl<'a> Parser<'a> {
         Ok((class_name, ItemKind::Union(vdata, generics)))
     }
 
-    fn parse_record_struct_body(&mut self) -> PResult<'a, (Vec<FieldDef>, /* recovered */ bool)> {
+    fn parse_record_struct_body(
+        &mut self,
+        adt_ty: &str,
+    ) -> PResult<'a, (Vec<FieldDef>, /* recovered */ bool)> {
         let mut fields = Vec::new();
         let mut recovered = false;
         if self.eat(&token::OpenDelim(token::Brace)) {
             while self.token != token::CloseDelim(token::Brace) {
-                let field = self.parse_field_def().map_err(|e| {
+                let field = self.parse_field_def(adt_ty).map_err(|e| {
                     self.consume_block(token::Brace, ConsumeClosingDelim::No);
                     recovered = true;
                     e
@@ -1294,24 +1297,25 @@ impl<'a> Parser<'a> {
     }
 
     /// Parses an element of a struct declaration.
-    fn parse_field_def(&mut self) -> PResult<'a, FieldDef> {
+    fn parse_field_def(&mut self, adt_ty: &str) -> PResult<'a, FieldDef> {
         let attrs = self.parse_outer_attributes()?;
         self.collect_tokens_trailing_token(attrs, ForceCollect::No, |this, attrs| {
             let lo = this.token.span;
             let vis = this.parse_visibility(FollowedByType::No)?;
-            Ok((this.parse_single_struct_field(lo, vis, attrs)?, TrailingToken::None))
+            Ok((this.parse_single_struct_field(adt_ty, lo, vis, attrs)?, TrailingToken::None))
         })
     }
 
     /// Parses a structure field declaration.
     fn parse_single_struct_field(
         &mut self,
+        adt_ty: &str,
         lo: Span,
         vis: Visibility,
         attrs: Vec<Attribute>,
     ) -> PResult<'a, FieldDef> {
         let mut seen_comma: bool = false;
-        let a_var = self.parse_name_and_ty(lo, vis, attrs)?;
+        let a_var = self.parse_name_and_ty(adt_ty, lo, vis, attrs)?;
         if self.token == token::Comma {
             seen_comma = true;
         }
@@ -1398,11 +1402,12 @@ impl<'a> Parser<'a> {
     /// Parses a structure field.
     fn parse_name_and_ty(
         &mut self,
+        adt_ty: &str,
         lo: Span,
         vis: Visibility,
         attrs: Vec<Attribute>,
     ) -> PResult<'a, FieldDef> {
-        let name = self.parse_ident_common(false)?;
+        let name = self.parse_field_ident(adt_ty, lo)?;
         self.expect(&token::Colon)?;
         let ty = self.parse_ty()?;
         Ok(FieldDef {
@@ -1416,6 +1421,29 @@ impl<'a> Parser<'a> {
         })
     }
 
+    /// Parses a field identifier. Specialized version of `parse_ident_common`
+    /// for better diagnostics and suggestions.
+    fn parse_field_ident(&mut self, adt_ty: &str, lo: Span) -> PResult<'a, Ident> {
+        let (ident, is_raw) = self.ident_or_err()?;
+        if !is_raw && ident.is_reserved() {
+            let err = if self.check_fn_front_matter(false) {
+                let _ = self.parse_fn(&mut Vec::new(), |_| true, lo);
+                let mut err = self.struct_span_err(
+                    lo.to(self.prev_token.span),
+                    &format!("functions are not allowed in {} definitions", adt_ty),
+                );
+                err.help("unlike in C++, Java, and C#, functions are declared in `impl` blocks");
+                err.help("see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information");
+                err
+            } else {
+                self.expected_ident_found()
+            };
+            return Err(err);
+        }
+        self.bump();
+        Ok(ident)
+    }
+
     /// Parses a declarative macro 2.0 definition.
     /// The `macro` keyword has already been parsed.
     /// ```

compiler/rustc_parse/src/parser/mod.rs

@@ -522,27 +522,27 @@ impl<'a> Parser<'a> {
         self.parse_ident_common(true)
     }
 
-    fn parse_ident_common(&mut self, recover: bool) -> PResult<'a, Ident> {
+    fn ident_or_err(&mut self) -> PResult<'a, (Ident, /* is_raw */ bool)> {
-        match self.token.ident() {
+        self.token.ident().ok_or_else(|| match self.prev_token.kind {
-            Some((ident, is_raw)) => {
+            TokenKind::DocComment(..) => {
-                if !is_raw && ident.is_reserved() {
+                self.span_fatal_err(self.prev_token.span, Error::UselessDocComment)
-                    let mut err = self.expected_ident_found();
+            }
-                    if recover {
+            _ => self.expected_ident_found(),
-                        err.emit();
+        })
-                    } else {
+    }
-                        return Err(err);
+
-                    }
+    fn parse_ident_common(&mut self, recover: bool) -> PResult<'a, Ident> {
-                }
+        let (ident, is_raw) = self.ident_or_err()?;
-                self.bump();
+        if !is_raw && ident.is_reserved() {
-                Ok(ident)
+            let mut err = self.expected_ident_found();
+            if recover {
+                err.emit();
+            } else {
+                return Err(err);
             }
-            _ => Err(match self.prev_token.kind {
-                TokenKind::DocComment(..) => {
-                    self.span_fatal_err(self.prev_token.span, Error::UselessDocComment)
-                }
-                _ => self.expected_ident_found(),
-            }),
         }
+        self.bump();
+        Ok(ident)
     }
 
     /// Checks if the next token is `tok`, and returns `true` if so.

compiler/rustc_span/src/source_map.rs

@@ -109,7 +109,7 @@ pub struct RealFileLoader;
 
 impl FileLoader for RealFileLoader {
     fn file_exists(&self, path: &Path) -> bool {
-        fs::metadata(path).is_ok()
+        path.exists()
     }
 
     fn read_file(&self, path: &Path) -> io::Result<String> {

compiler/rustc_span/src/span_encoding.rs

@@ -102,7 +102,7 @@ impl Span {
             // Interned format.
             debug_assert!(self.ctxt_or_zero == 0);
             let index = self.base_or_index;
-            with_span_interner(|interner| *interner.get(index))
+            with_span_interner(|interner| interner.spans[index as usize])
         }
     }
 }
@@ -117,11 +117,6 @@ impl SpanInterner {
         let (index, _) = self.spans.insert_full(*span_data);
         index as u32
     }
-
-    #[inline]
-    fn get(&self, index: u32) -> &SpanData {
-        &self.spans[index as usize]
-    }
 }
 
 // If an interner exists, return it. Otherwise, prepare a fresh one.

src/bootstrap/test.rs

@@ -831,28 +831,14 @@ impl Step for RustdocGUI {
             command.arg("src/test/rustdoc-gui/lib.rs").arg("-o").arg(&out_dir);
             builder.run(&mut command);
 
-            let mut tests = Vec::new();
+            let mut command = Command::new(&nodejs);
-            for file in fs::read_dir("src/test/rustdoc-gui").unwrap() {
+            command
-                let file = file.unwrap();
+                .arg("src/tools/rustdoc-gui/tester.js")
-                let file_path = file.path();
+                .arg("--doc-folder")
-                let file_name = file.file_name();
+                .arg(out_dir.join("test_docs"))
-
+                .arg("--tests-folder")
-                if !file_name.to_str().unwrap().ends_with(".goml") {
+                .arg("src/test/rustdoc-gui");
-                    continue;
+            builder.run(&mut command);
-                }
-                tests.push(file_path);
-            }
-            tests.sort_unstable();
-            for test in tests {
-                let mut command = Command::new(&nodejs);
-                command
-                    .arg("src/tools/rustdoc-gui/tester.js")
-                    .arg("--doc-folder")
-                    .arg(out_dir.join("test_docs"))
-                    .arg("--test-file")
-                    .arg(test);
-                builder.run(&mut command);
-            }
         } else {
             builder.info("No nodejs found, skipping \"src/test/rustdoc-gui\" tests");
         }

src/librustdoc/passes/collect_intra_doc_links.rs

@@ -2017,7 +2017,10 @@ fn disambiguator_error(
     msg: &str,
 ) {
     diag_info.link_range = disambiguator_range;
-    report_diagnostic(cx.tcx, BROKEN_INTRA_DOC_LINKS, msg, &diag_info, |_diag, _sp| {});
+    report_diagnostic(cx.tcx, BROKEN_INTRA_DOC_LINKS, msg, &diag_info, |diag, _sp| {
+        let msg = "see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators";
+        diag.note(msg);
+    });
 }
 
 /// Report an ambiguity error, where there were multiple possible resolutions.

src/test/rustdoc-ui/intra-doc/email-address-localhost.stderr

@@ -10,6 +10,7 @@ note: the lint level is defined here
 LL | #![deny(warnings)]
    |         ^^^^^^^^
    = note: `#[deny(rustdoc::broken_intra_doc_links)]` implied by `#[deny(warnings)]`
+   = note: see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
 
 error: aborting due to previous error
 

src/test/rustdoc-ui/intra-doc/unknown-disambiguator.stderr

@@ -10,36 +10,47 @@ note: the lint level is defined here
 LL | #![deny(warnings)]
    |         ^^^^^^^^
    = note: `#[deny(rustdoc::broken_intra_doc_links)]` implied by `#[deny(warnings)]`
+   = note: see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
 
 error: unknown disambiguator `bar`
   --> $DIR/unknown-disambiguator.rs:3:35
    |
 LL | //! Linking to [foo@banana] and [`bar@banana!()`].
    |                                   ^^^
+   |
+   = note: see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
 
 error: unknown disambiguator `foo`
   --> $DIR/unknown-disambiguator.rs:9:34
    |
 LL | //! And with weird backticks: [``foo@hello``] [foo`@`hello].
    |                                  ^^^
+   |
+   = note: see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
 
 error: unknown disambiguator `foo`
   --> $DIR/unknown-disambiguator.rs:9:48
    |
 LL | //! And with weird backticks: [``foo@hello``] [foo`@`hello].
    |                                                ^^^
+   |
+   = note: see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
 
 error: unknown disambiguator ``
   --> $DIR/unknown-disambiguator.rs:6:31
    |
 LL | //! And to [no disambiguator](@nectarine) and [another](@apricot!()).
    |                               ^
+   |
+   = note: see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
 
 error: unknown disambiguator ``
   --> $DIR/unknown-disambiguator.rs:6:57
    |
 LL | //! And to [no disambiguator](@nectarine) and [another](@apricot!()).
    |                                                         ^
+   |
+   = note: see https://doc.rust-lang.org/nightly/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
 
 error: aborting due to 6 previous errors
 

src/test/ui/consts/const-eval/ub-wide-ptr.32bit.stderr

@@ -296,7 +296,7 @@ error[E0080]: could not evaluate static initializer
   --> $DIR/ub-wide-ptr.rs:135:5
    |
 LL |     mem::transmute::<_, &dyn Trait>((&92u8, 0usize))
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ null pointer is not allowed for this operation
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ null pointer is not a valid pointer for this operation
 
 error[E0080]: could not evaluate static initializer
   --> $DIR/ub-wide-ptr.rs:139:5

src/test/ui/consts/const-eval/ub-wide-ptr.64bit.stderr

@@ -296,7 +296,7 @@ error[E0080]: could not evaluate static initializer
   --> $DIR/ub-wide-ptr.rs:135:5
    |
 LL |     mem::transmute::<_, &dyn Trait>((&92u8, 0usize))
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ null pointer is not allowed for this operation
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ null pointer is not a valid pointer for this operation
 
 error[E0080]: could not evaluate static initializer
   --> $DIR/ub-wide-ptr.rs:139:5

src/test/ui/consts/offset_from_ub.stderr

@@ -74,7 +74,7 @@ error: any use of this value will cause an error
 LL |           unsafe { intrinsics::ptr_offset_from(self, origin) }
    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |                    |
-   |                    null pointer is not allowed for this operation
+   |                    null pointer is not a valid pointer for this operation
    |                    inside `ptr::const_ptr::<impl *const u8>::offset_from` at $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
    |                    inside `OFFSET_FROM_NULL` at $DIR/offset_from_ub.rs:36:14
    | 

src/test/ui/structs/struct-fn-in-definition.rs

@@ -0,0 +1,33 @@
+// It might be intuitive for a user coming from languages like Java
+// to declare a method directly in a struct's definition. Make sure
+// rustc can give a helpful suggestion.
+// Suggested in issue #76421
+
+struct S {
+    field: usize,
+
+    fn foo() {}
+    //~^ ERROR functions are not allowed in struct definitions
+    //~| HELP unlike in C++, Java, and C#, functions are declared in `impl` blocks
+    //~| HELP see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information
+}
+
+union U {
+    variant: usize,
+
+    fn foo() {}
+    //~^ ERROR functions are not allowed in union definitions
+    //~| HELP unlike in C++, Java, and C#, functions are declared in `impl` blocks
+    //~| HELP see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information
+}
+
+enum E {
+    Variant,
+
+    fn foo() {}
+    //~^ ERROR functions are not allowed in enum definitions
+    //~| HELP unlike in C++, Java, and C#, functions are declared in `impl` blocks
+    //~| HELP see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information
+}
+
+fn main() {}

src/test/ui/structs/struct-fn-in-definition.stderr

@@ -0,0 +1,29 @@
+error: functions are not allowed in struct definitions
+  --> $DIR/struct-fn-in-definition.rs:9:5
+   |
+LL |     fn foo() {}
+   |     ^^^^^^^^^^^
+   |
+   = help: unlike in C++, Java, and C#, functions are declared in `impl` blocks
+   = help: see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information
+
+error: functions are not allowed in union definitions
+  --> $DIR/struct-fn-in-definition.rs:18:5
+   |
+LL |     fn foo() {}
+   |     ^^^^^^^^^^^
+   |
+   = help: unlike in C++, Java, and C#, functions are declared in `impl` blocks
+   = help: see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information
+
+error: functions are not allowed in enum definitions
+  --> $DIR/struct-fn-in-definition.rs:27:5
+   |
+LL |     fn foo() {}
+   |     ^^^^^^^^^^^
+   |
+   = help: unlike in C++, Java, and C#, functions are declared in `impl` blocks
+   = help: see https://doc.rust-lang.org/book/ch05-03-method-syntax.html for more information
+
+error: aborting due to 3 previous errors
+

src/tools/rustdoc-gui/tester.js

@@ -3,29 +3,30 @@
 // ```
 // npm install browser-ui-test
 // ```
-const path = require('path');
+const fs = require("fs");
+const path = require("path");
 const {Options, runTest} = require('browser-ui-test');
 
 function showHelp() {
     console.log("rustdoc-js options:");
     console.log("  --doc-folder [PATH]        : location of the generated doc folder");
     console.log("  --help                     : show this message then quit");
-    console.log("  --test-file [PATH]         : location of the JS test file");
+    console.log("  --tests-folder [PATH]      : location of the .GOML tests folder");
 }
 
 function parseOptions(args) {
     var opts = {
         "doc_folder": "",
-        "test_file": "",
+        "tests_folder": "",
     };
     var correspondances = {
         "--doc-folder": "doc_folder",
-        "--test-file": "test_file",
+        "--tests-folder": "tests_folder",
     };
 
     for (var i = 0; i < args.length; ++i) {
         if (args[i] === "--doc-folder"
-            || args[i] === "--test-file") {
+            || args[i] === "--tests-folder") {
             i += 1;
             if (i >= args.length) {
                 console.log("Missing argument after `" + args[i - 1] + "` option.");
@@ -41,8 +42,8 @@ function parseOptions(args) {
             return null;
         }
     }
-    if (opts["test_file"].length < 1) {
+    if (opts["tests_folder"].length < 1) {
-        console.log("Missing `--test-file` option.");
+        console.log("Missing `--tests-folder` option.");
     } else if (opts["doc_folder"].length < 1) {
         console.log("Missing `--doc-folder` option.");
     } else {
@@ -51,15 +52,8 @@ function parseOptions(args) {
     return null;
 }
 
-function checkFile(test_file, opts, loaded, index) {
+async function main(argv) {
-    const test_name = path.basename(test_file, ".js");
+    let opts = parseOptions(argv.slice(2));
-
-    process.stdout.write('Checking "' + test_name + '" ... ');
-    return runChecks(test_file, loaded, index);
-}
-
-function main(argv) {
-    var opts = parseOptions(argv.slice(2));
     if (opts === null) {
         process.exit(1);
     }
@@ -68,7 +62,7 @@ function main(argv) {
     try {
         // This is more convenient that setting fields one by one.
         options.parseArguments([
-            '--no-screenshot',
+            "--no-screenshot",
             "--variable", "DOC_PATH", opts["doc_folder"],
         ]);
     } catch (error) {
@@ -76,14 +70,26 @@ function main(argv) {
         process.exit(1);
     }
 
-    runTest(opts["test_file"], options).then(out => {
+    let failed = false;
-        const [output, nb_failures] = out;
+    let files = fs.readdirSync(opts["tests_folder"]).filter(file => path.extname(file) == ".goml");
-        console.log(output);
+
-        process.exit(nb_failures);
+    files.sort();
-    }).catch(err => {
+    for (var i = 0; i < files.length; ++i) {
-        console.error(err);
+        const testPath = path.join(opts["tests_folder"], files[i]);
+        await runTest(testPath, options).then(out => {
+            const [output, nb_failures] = out;
+            console.log(output);
+            if (nb_failures > 0) {
+                failed = true;
+            }
+        }).catch(err => {
+            console.error(err);
+            failed = true;
+        });
+    }
+    if (failed) {
         process.exit(1);
-    });
+    }
 }
 
 main(process.argv);