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lib/std/Build/CheckObject: implement for Wasm

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This commit is contained in:
Jakub Konka 2023-12-13 11:41:51 +01:00
parent 92cca7fbf1
commit c4519d6bba
1 changed files with 14 additions and 9 deletions
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23
lib/std/Build/Step/CheckObject.zig
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@ -2221,7 +2221,6 @@ const WasmDumper = struct {
const symtab_label = "symbols";
fn parseAndDump(step: *Step, kind: Check.Kind, bytes: []const u8) ![]const u8 {
_ = kind;
const gpa = step.owner.allocator;
var fbs = std.io.fixedBufferStream(bytes);
const reader = fbs.reader();
@ -2238,15 +2237,21 @@ const WasmDumper = struct {
errdefer output.deinit();
const writer = output.writer();
while (reader.readByte()) |current_byte| {
const section = std.meta.intToEnum(std.wasm.Section, current_byte) catch {
return step.fail("Found invalid section id '{d}'", .{current_byte});
};
switch (kind) {
.headers => {
while (reader.readByte()) |current_byte| {
const section = std.meta.intToEnum(std.wasm.Section, current_byte) catch {
return step.fail("Found invalid section id '{d}'", .{current_byte});
};
const section_length = try std.leb.readULEB128(u32, reader);
try parseAndDumpSection(step, section, bytes[fbs.pos..][0..section_length], writer);
fbs.pos += section_length;
} else |_| {} // reached end of stream
const section_length = try std.leb.readULEB128(u32, reader);
try parseAndDumpSection(step, section, bytes[fbs.pos..][0..section_length], writer);
fbs.pos += section_length;
} else |_| {} // reached end of stream
},
else => return step.fail("invalid check kind for Wasm file format: {s}", .{@tagName(kind)}),
}
return output.toOwnedSlice();
}