86 lines
2.2 KiB
Zig
86 lines
2.2 KiB
Zig
const std = @import("std");
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const zls = @import("zls");
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const Ast = std.zig.Ast;
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const translate_c = zls.translate_c;
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const allocator: std.mem.Allocator = std.testing.allocator;
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test "convertCInclude - empty" {
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try testConvertCInclude("@cImport()", "");
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try testConvertCInclude("@cImport({})", "");
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try testConvertCInclude("@cImport({{}, {}})", "");
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}
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test "convertCInclude - cInclude" {
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try testConvertCInclude(
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\\@cImport(@cInclude("foo.zig"))
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,
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\\#include <foo.zig>
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);
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try testConvertCInclude(
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\\@cImport(@cInclude("foo.zig"), @cInclude("bar.zig"))
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,
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\\#include <foo.zig>
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\\#include <bar.zig>
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);
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}
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test "translate_c - cDefine" {
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try testConvertCInclude(
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\\@cImport(@cDefine("FOO", "BAR"))
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,
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\\#define FOO BAR
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);
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try testConvertCInclude(
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\\@cImport(@cDefine("FOO", {}))
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,
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\\#define FOO
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);
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}
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test "translate_c - cUndef" {
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try testConvertCInclude(
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\\@cImport(@cUndef("FOO"))
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,
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\\#undef FOO
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);
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}
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fn testConvertCInclude(cimport_source: []const u8, expected: []const u8) !void {
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const source: [:0]u8 = try std.fmt.allocPrintZ(allocator, "const c = {s};", .{cimport_source});
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defer allocator.free(source);
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var ast = try std.zig.parse(allocator, source);
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defer ast.deinit(allocator);
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const main_tokens = ast.nodes.items(.main_token);
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const node: Ast.Node.Index = blk: {
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for (ast.nodes.items(.tag)) |tag, index| {
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switch (tag) {
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.builtin_call_two,
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.builtin_call_two_comma,
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.builtin_call,
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.builtin_call_comma,
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=> {},
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else => continue,
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}
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if(!std.mem.eql(u8, ast.tokenSlice(main_tokens[index]), "@cImport")) continue;
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break :blk @intCast(Ast.Node.Index, index);
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}
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return error.TestUnexpectedResult; // source doesn't contain a cImport
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};
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const output = try translate_c.convertCInclude(allocator, ast, node);
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defer allocator.free(output);
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const trimmed_output = std.mem.trimRight(u8, output, &.{'\n'});
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try std.testing.expectEqualStrings(expected, trimmed_output);
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}
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