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cgen: print nested structs
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5
.gitignore
vendored
5
.gitignore
vendored
@ -83,7 +83,4 @@ cachegrind.out.*
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.gdb_history
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/thirdparty/pg
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exe
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vlib/v/tests/inout/hello.v
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vlib/v/tests/inout/hello_devs.v
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vlib/v/tests/inout/os.v
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vlib/v/tests/inout/enum_print.v
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vlib/v/tests/inout/*.v
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@ -2334,11 +2334,7 @@ fn (g mut Gen) string_inter_literal(node ast.StringInterLiteral) {
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}
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if is_var {
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styp := g.typ(node.expr_types[i])
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if !sym.has_method('str') && !(styp in g.str_types) {
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// Generate an automatic str() method if this type doesn't have it already
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g.str_types << styp
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g.gen_str_for_type(sym, styp)
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}
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g.write('${styp}_str(')
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g.enum_expr(expr)
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g.write(')')
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@ -2510,14 +2506,10 @@ fn (g mut Gen) fn_call(node ast.CallExpr) {
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typ := node.args[0].typ
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mut styp := g.typ(typ)
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sym := g.table.get_type_symbol(typ)
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if !sym.has_method('str') && !(styp in g.str_types) {
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// Generate an automatic str() method if this type doesn't have it already
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if table.type_is_ptr(typ) {
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styp = styp.replace('*', '')
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}
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g.str_types << styp
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g.gen_str_for_type(sym, styp)
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}
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if g.autofree && !table.type_is(typ, .optional) {
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// Create a temporary variable so that the value can be freed
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tmp := g.new_tmp_var()
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@ -2562,6 +2554,9 @@ fn (g mut Gen) fn_call(node ast.CallExpr) {
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// g.write('*')
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}
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g.expr(node.args[0].expr)
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if sym.kind ==.struct_ && styp != 'ptr' && !sym.has_method('str') {
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g.write(', 0') // trailing 0 is initial struct indent count
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}
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g.write('))')
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}
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} else {
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@ -3042,6 +3037,10 @@ fn (g mut Gen) go_stmt(node ast.GoStmt) {
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// already generated styp, reuse it
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fn (g mut Gen) gen_str_for_type(sym table.TypeSymbol, styp string) {
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if sym.has_method('str') || styp in g.str_types {
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return
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}
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g.str_types << styp
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match sym.info {
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table.Struct {
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g.gen_str_for_struct(it, styp)
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@ -3057,7 +3056,7 @@ fn (g mut Gen) gen_str_for_type(sym table.TypeSymbol, styp string) {
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fn (g mut Gen) gen_str_for_enum(info table.Enum, styp string) {
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s := styp.replace('.', '__')
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g.definitions.write('string ${s}_str($styp a) {\n\tswitch(a) {\n')
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g.definitions.write('string ${s}_str($styp it) {\n\tswitch(it) {\n')
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for i, val in info.vals {
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g.definitions.write('\t\tcase ${s}_$val: return tos3("$val");\n')
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}
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@ -3065,36 +3064,59 @@ fn (g mut Gen) gen_str_for_enum(info table.Enum, styp string) {
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}
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fn (g mut Gen) gen_str_for_struct(info table.Struct, styp string) {
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s := styp.replace('.', '__')
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g.definitions.write('string ${s}_str($styp a) { return _STR("$styp {\\n')
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for field in info.fields {
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fmt := type_to_fmt(field.typ)
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g.definitions.write('\t$field.name: $fmt\\n')
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// TODO: short it if possible
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// generates all definitions of substructs
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for i, field in info.fields {
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sym := g.table.get_type_symbol(field.typ)
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if sym.kind == .struct_ {
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field_styp := g.typ(field.typ)
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g.gen_str_for_type(sym, field_styp)
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}
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g.definitions.write('}"')
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}
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s := styp.replace('.', '__')
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g.definitions.write('string ${s}_str($styp it, int indent_count) {\n')
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// generate ident / indent length = 4 spaces
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g.definitions.write('\tstring indents = tos3("");\n\tfor (int i = 0; i < indent_count; i++) { indents = string_add(indents, tos3(" ")); }\n')
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g.definitions.write('\treturn _STR("$styp {\\n')
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for field in info.fields {
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fmt := g.type_to_fmt(field.typ)
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g.definitions.write('%.*s ' + '$field.name: $fmt\\n')
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}
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g.definitions.write('%.*s}"')
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if info.fields.len > 0 {
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g.definitions.write(', ')
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}
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for i, field in info.fields {
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g.definitions.write('a.' + field.name)
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sym := g.table.get_type_symbol(field.typ)
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if sym.kind == .struct_ {
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field_styp := g.typ(field.typ)
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g.definitions.write('indents.len, indents.str, ${field_styp}_str(it.$field.name, indent_count + 1).len, ${field_styp}_str(it.$field.name, indent_count + 1).str')
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} else {
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g.definitions.write('indents.len, indents.str, it.$field.name')
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if field.typ == table.string_type {
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g.definitions.write('.len, a.${field.name}.str')
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g.definitions.write('.len, it.${field.name}.str')
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} else if field.typ == table.bool_type {
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g.definitions.write(' ? 4 : 5, a.${field.name} ? "true" : "false"')
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g.definitions.write(' ? 4 : 5, it.${field.name} ? "true" : "false"')
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}
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if i < info.fields.len - 1 {
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g.definitions.write(', ')
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}
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}
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g.definitions.writeln('); }')
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}
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}
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g.definitions.writeln(', indents.len, indents.str);\n}')
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}
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fn type_to_fmt(typ table.Type) string {
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n := int(typ)
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if n == table.string_type {
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fn (g Gen) type_to_fmt(typ table.Type) string {
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sym := g.table.get_type_symbol(typ)
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if sym.kind == .struct_ {
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return "%.*s"
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} else if typ == table.string_type {
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return "\'%.*s\'"
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} else if n == table.bool_type {
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} else if typ == table.bool_type {
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return '%.*s'
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} else if typ in [table.f32_type, table.f64_type] {
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return '%g' // g removes trailing zeros unlike %f
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}
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return '%d'
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}
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7
vlib/v/tests/inout/nested_structs.out
Normal file
7
vlib/v/tests/inout/nested_structs.out
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@ -0,0 +1,7 @@
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A {
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test: false
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b: B {
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pass: false
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name: ''
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}
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}
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16
vlib/v/tests/inout/nested_structs.vv
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16
vlib/v/tests/inout/nested_structs.vv
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@ -0,0 +1,16 @@
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module main
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struct B {
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pass bool
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name string
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}
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struct A {
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test bool
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b B
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}
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fn main() {
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a := A{}
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println(a)
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}
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