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Merge pull request #16480 from r00ster91/embedfile

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fix `@embedFile("")` not giving a proper error
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Andrew Kelley 2023-07-21 22:46:41 -07:00 • committed by GitHub
commit 1291f4aca4
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4 changed files with 110 additions and 95 deletions
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10
doc/langref.html.in
View file

@ -8041,7 +8041,7 @@ pub const CallModifier = enum {
{#header_close#}
{#header_open|@cDefine#}
<pre>{#syntax#}@cDefine(comptime name: []u8, value) void{#endsyntax#}</pre>
<pre>{#syntax#}@cDefine(comptime name: []const u8, value) void{#endsyntax#}</pre>
<p>
This function can only occur inside {#syntax#}@cImport{#endsyntax#}.
</p>
@ -8085,7 +8085,7 @@ pub const CallModifier = enum {
{#see_also|Import from C Header File|@cInclude|@cDefine|@cUndef#}
{#header_close#}
{#header_open|@cInclude#}
<pre>{#syntax#}@cInclude(comptime path: []u8) void{#endsyntax#}</pre>
<pre>{#syntax#}@cInclude(comptime path: []const u8) void{#endsyntax#}</pre>
<p>
This function can only occur inside {#syntax#}@cImport{#endsyntax#}.
</p>
@ -8176,7 +8176,7 @@ fn cmpxchgWeakButNotAtomic(comptime T: type, ptr: *T, expected_value: T, new_val
{#header_close#}
{#header_open|@compileError#}
<pre>{#syntax#}@compileError(comptime msg: []u8) noreturn{#endsyntax#}</pre>
<pre>{#syntax#}@compileError(comptime msg: []const u8) noreturn{#endsyntax#}</pre>
<p>
This function, when semantically analyzed, causes a compile error with the
message {#syntax#}msg{#endsyntax#}.
@ -8267,7 +8267,7 @@ test "main" {
{#header_close#}
{#header_open|@cUndef#}
<pre>{#syntax#}@cUndef(comptime name: []u8) void{#endsyntax#}</pre>
<pre>{#syntax#}@cUndef(comptime name: []const u8) void{#endsyntax#}</pre>
<p>
This function can only occur inside {#syntax#}@cImport{#endsyntax#}.
</p>
@ -8607,7 +8607,7 @@ test "@hasDecl" {
{#header_close#}
{#header_open|@import#}
<pre>{#syntax#}@import(comptime path: []u8) type{#endsyntax#}</pre>
<pre>{#syntax#}@import(comptime path: []const u8) type{#endsyntax#}</pre>
<p>
This function finds a zig file corresponding to {#syntax#}path{#endsyntax#} and adds it to the build,
if it is not already added.

4
src/Sema.zig
View file

@ -12633,6 +12633,10 @@ fn zirEmbedFile(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!A
const operand_src: LazySrcLoc = .{ .node_offset_builtin_call_arg0 = inst_data.src_node };
const name = try sema.resolveConstString(block, operand_src, inst_data.operand, "file path name must be comptime-known");
if (name.len == 0) {
return sema.fail(block, operand_src, "file path name cannot be empty", .{});
}
const embed_file = mod.embedFile(block.getFileScope(mod), name) catch |err| switch (err) {
error.ImportOutsidePkgPath => {
return sema.fail(block, operand_src, "embed of file outside package path: '{s}'", .{name});

11
test/cases/compile_errors/@embedFile_with_empty_path.zig Normal file
View file

@ -0,0 +1,11 @@
const resource = @embedFile("");
export fn entry() usize {
return @sizeOf(@TypeOf(resource));
}
// error
// backend=stage2
// target=native
//
// :1:29: error: file path name cannot be empty