clean up fuzzer related meson logic

fuzz/atom/parser/meson.build

@@ -1,6 +1,7 @@
 fuzzers += {
-    'atom_parser': [
-        meson.current_source_dir() / 'gencorpus.rs',
-        meson.current_source_dir() / 'fuzz.rs',
-    ],
+    'atom_parser': {
+        'gencorpus': meson.current_source_dir() / 'gencorpus.rs',
+        'fuzzer': meson.current_source_dir() / 'fuzz.rs',
+        'deps': [mon],
+    },
 }

fuzz/atom/vercmp/meson.build

@@ -1,6 +1,7 @@
 fuzzers += {
-    'atom_vercmp': [
-        meson.current_source_dir() / 'gencorpus.rs',
-        meson.current_source_dir() / 'fuzz.rs',
-    ],
+    'atom_vercmp': {
+        'gencorpus': meson.current_source_dir() / 'gencorpus.rs',
+        'fuzzer': meson.current_source_dir() / 'fuzz.rs',
+        'deps': [mon],
+    },
 }

fuzz/meson.build

@@ -4,9 +4,10 @@ fuzzers = {}
 
 subdir('atom')
 
-foreach fuzzer, sources : fuzzers
-    gencorpus_rs = sources[0]
-    fuzz_rs = sources[1]
+foreach fuzzer, meta : fuzzers
+    gencorpus_rs = meta['gencorpus']
+    fuzz_rs = meta['fuzzer']
+    deps = meta['deps']
 
     gencorpus = executable(
         fuzzer + '_' + 'gencorpus',
@@ -18,20 +19,20 @@ foreach fuzzer, sources : fuzzers
     corpus_directory = fuzzer + '_' + 'corpus'
 
     corpus = custom_target(
-        fuzzer + '_' + 'corpus',
-        output: fuzzer + '_' + 'corpus',
+        f'@fuzzer@_corpus',
+        output: f'@fuzzer@_corpus',
         command: [gencorpus, corpus_directory],
     )
 
     fuzz_h = custom_target(
-        fuzzer + '_' + 'fuzz_h',
+        f'@fuzzer@_fuzz.h',
         input: fuzz_rs,
-        output: fuzzer + '_' + 'fuzz.h',
+        output: f'@fuzzer@_fuzz.h',
         command: [cbindgen, '@INPUT@', '-o', '@OUTPUT'],
     )
 
     fuzz_rs = static_library(
-        fuzzer + '.rs',
+        f'@fuzzer@.rs',
         fuzz_rs,
         rust_abi: 'c',
         rust_args: [
@@ -39,12 +40,12 @@ foreach fuzzer, sources : fuzzers
             '-Cllvm-args=-sanitizer-coverage-level=3',
             '-Cllvm-args=-sanitizer-coverage-inline-8bit-counters',
         ],
-        dependencies: [mon],
+        dependencies: deps,
         link_with: [gentoo_utils],
     )
 
     fuzz = executable(
-        fuzzer + '_' + 'fuzzer',
+        f'@fuzzer@_fuzzer',
         link_args: ['-fsanitize=fuzzer'],
         link_with: [fuzz_rs],
     )