CI: Add back erased commits and dont test hot code examples

Makefile

@@ -14,7 +14,7 @@ test: v
 	echo "Running V tests..."
 	find . -name '*_test.v' -print0 | xargs -0 -n1 ./v
 	echo "Building V examples..."
-	find examples -name '*.v' -print0 | xargs -0 -n1 ./v
+	find examples -name '*.v' -not -path "examples/hot_code_reloading/*" -print0 | xargs -0 -n1 ./v
 
 clean:
 	-rm -f v.c v vprod

compiler/main.v

@@ -464,13 +464,13 @@ fn (c &V) cc_windows_cross() {
        }
        mut libs := ''
        if c.pref.build_mode == .default_mode {
-               libs = '$TmpPath/vlib/builtin.o'
+               libs = '"$TmpPath/vlib/builtin.o"'
                if !os.file_exists(libs) {
                        println('`builtin.o` not found')
                        exit(1) 
                }
                for imp in c.table.imports {
-                       libs += ' $TmpPath/vlib/${imp}.o'
+                       libs += ' "$TmpPath/vlib/${imp}.o"'
                }
        }
        args += ' $c.out_name_c '
@@ -534,7 +534,7 @@ fn (v mut V) cc() {
 	flags := v.table.flags.join(' ')
 	//mut shared := ''
 	if v.pref.is_so {
-		a << '-shared'// -Wl,-z,defs'
+		a << '-shared -fPIC'// -Wl,-z,defs'
 		v.out_name = v.out_name + '.so'
 	}
 	if v.pref.is_prod {
@@ -551,7 +551,7 @@ fn (v mut V) cc() {
 		// 
 	}
 	else if v.pref.build_mode == .default_mode {
-		libs = '$TmpPath/vlib/builtin.o'
+		libs = '"$TmpPath/vlib/builtin.o"'
 		if !os.file_exists(libs) {
 			println('`builtin.o` not found')
 			exit(1)
@@ -560,7 +560,7 @@ fn (v mut V) cc() {
 			if imp == 'webview' {
 				continue
 			}
-			libs += ' $TmpPath/vlib/${imp}.o'
+			libs += ' "$TmpPath/vlib/${imp}.o"'
 		}
 	}
 	// -I flags
@@ -592,7 +592,7 @@ mut args := ''
 	// else {
 	a << '-o $v.out_name'
 	// The C file we are compiling
-	a << '$TmpPath/$v.out_name_c'
+	a << '"$TmpPath/$v.out_name_c"'
 	// }
 	// Min macos version is mandatory I think?
 	if v.os == MAC {
@@ -747,7 +747,7 @@ fn (v mut V) add_user_v_files() {
 	// Parse lib imports
 	if v.pref.build_mode == .default_mode {
 		for i := 0; i < v.table.imports.len; i++ {
-			pkg := v.table.imports[i]
+			pkg := v.module_path(v.table.imports[i])
 			vfiles := v.v_files_from_dir('$TmpPath/vlib/$pkg')
 			// Add all imports referenced by these libs
 			for file in vfiles {
@@ -760,7 +760,7 @@ fn (v mut V) add_user_v_files() {
 		// TODO this used to crash compiler?
 		// for pkg in v.table.imports {
 		for i := 0; i < v.table.imports.len; i++ {
-			pkg := v.table.imports[i]
+			pkg := v.module_path(v.table.imports[i])
 			idir := os.getwd()
 			mut import_path := '$idir/$pkg'
 			if(!os.file_exists(import_path)) {
@@ -779,7 +779,8 @@ fn (v mut V) add_user_v_files() {
 		println(v.table.imports)
 	}
 	// Only now add all combined lib files
-	for pkg in v.table.imports {
+	for _pkg in v.table.imports {
+		pkg := v.module_path(_pkg)
 		idir := os.getwd()
 		mut module_path := '$idir/$pkg'
 		// If we are in default mode, we don't parse vlib .v files, but header .vh files in
@@ -820,6 +821,15 @@ fn get_arg(joined_args, arg, def string) string {
 	return res
 }
 
+fn (v &V) module_path(pkg string) string {
+	// submodule support
+	if pkg.contains('.') {
+		//return pkg.replace('.', path_sep)
+		return pkg.replace('.', '/')
+	}
+	return pkg
+}
+
 fn (v &V) log(s string) {
 	if !v.pref.is_verbose {
 		return

compiler/parser.v

@@ -294,7 +294,21 @@ fn (p mut Parser) import_statement() {
 	if p.tok != NAME {
 		p.error('bad import format')
 	}
-	pkg := p.lit.trim_space()
+	mut pkg := p.lit.trim_space()
+	// submodule support
+	// limit depth to 4 for now
+	max_module_depth := 4
+	mut depth := 1
+	for p.peek() == DOT {
+		p.next() // SKIP DOT
+		p.next() // SUBMODULE
+		submodule := p.lit.trim_space()
+		pkg = pkg + '.' + submodule
+		depth++
+		if depth > max_module_depth {
+			panic('Sorry. Module depth of $max_module_depth exceeded: $pkg ($submodule is too deep).')
+		}
+	}
 	p.next()
 	p.fgenln(' ' + pkg)
 	// Make sure there are no duplicate imports
@@ -1133,6 +1147,13 @@ fn (p mut Parser) var_decl() {
 		p.next()
 		p.check(LCBR)
 		p.genln('if (!$tmp .ok) {')
+		p.register_var(Var {
+			name: 'err'
+			typ: 'string'
+			is_mut: false
+			is_used: true
+		})
+		p.genln('string err = $tmp . error;')
 		p.statements()
 		p.genln('$typ $name = *($typ*) $tmp . data;')
 		if !p.returns && p.prev_tok2 != CONTINUE && p.prev_tok2 != BREAK {