mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
1117 lines
24 KiB
V
1117 lines
24 KiB
V
// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module compiler
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import strings
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struct Table {
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pub mut:
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typesmap map[string]Type
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consts []Var
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fns map[string]Fn
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obf_ids map[string]int // obf_ids['myfunction'] == 23
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modules []string // List of all modules registered by the application
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imports []string // List of all imports
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cflags []CFlag // ['-framework Cocoa', '-lglfw3']
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fn_cnt int // atomic
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obfuscate bool
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varg_access []VargAccess
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// enum_vals map[string][]string
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// names []Name
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max_field_len map[string]int // for vfmt: max_field_len['Parser'] == 12
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generic_struct_params map[string][]string
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}
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struct VargAccess {
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fn_name string
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tok_idx int
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index int
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}
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enum NameCategory {
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constant
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mod
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var
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typ
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}
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struct Name {
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cat NameCategory
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idx int // e.g. typ := types[name.idx]
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}
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enum AccessMod {
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private // private immutable
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private_mut // private mutable
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public // public immutable (readonly)
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public_mut // public, but mutable only in this module
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global // public and mutable both inside and outside (not recommended to use, that's why it's so verbose)
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}
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fn (a []AccessMod) contains(b AccessMod) bool {
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for elm in a {
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if elm == b {
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return true
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}
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}
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return false
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}
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enum TypeCategory {
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builtin
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struct_
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func // 2
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interface_
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enum_
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union_ // 5
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c_struct
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c_typedef
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objc_interface // 8 Objective C @interface
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array
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alias // `type myint int`
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}
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struct Var {
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pub mut:
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typ string
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name string
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idx int // index in the local_vars array
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is_arg bool
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is_const bool
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args []Var // function args
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attr string // [json] etc
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is_mut bool
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is_alloc bool
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is_returned bool
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ptr bool
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ref bool
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parent_fn string // Variables can only be defined in functions
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mod string // module where this var is stored
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access_mod AccessMod
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is_global bool // __global (translated from C only)
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is_used bool
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is_changed bool
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scope_level int
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is_c bool // todo remove once `typ` is `Type`, not string
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is_moved bool
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line_nr int
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token_idx int // this is a token index, which will be used by error reporting
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is_for_var bool
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is_public bool // for consts
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}
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struct Type {
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pub mut:
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mod string
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name string
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cat TypeCategory
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is_public bool
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fields []Var
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methods []Fn
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parent string
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func Fn // For cat == FN (type myfn fn())
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is_c bool // `C.FILE`
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enum_vals []string
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gen_types []string
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default_vals []string // `struct Foo { bar int = 2 }`
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parser_idx int
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decl_tok_idx int
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// `is_placeholder` is used for types that are not defined yet but are known to exist.
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// It allows having things like `fn (f Foo) bar()` before `Foo` is defined.
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// This information is needed in the first pass.
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is_placeholder bool
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gen_str bool // needs `.str()` method generation
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is_flag bool // enum bitfield flag
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// max_field_len int
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is_generic bool
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}
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struct TypeNode {
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mut:
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next &TypeNode
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typ Type
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}
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/*
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// For debugging types
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pub fn (t Type) str() string {
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mut s := 'type "$t.name" {'
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if t.fields.len > 0 {
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// s += '\n $t.fields.len fields:\n'
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for field in t.fields {
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s += '\n $field.name $field.typ'
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}
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s += '\n'
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}
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if t.methods.len > 0 {
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// s += '\n $t.methods.len methods:\n'
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for method in t.methods {
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s += '\n ${method.str()}'
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}
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s += '\n'
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}
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s += '}\n'
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return s
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}
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*/
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const (
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c_reserved = ['delete', 'exit', 'unix',
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// 'print',
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// 'ok',
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'error', 'malloc', 'calloc', 'free', 'panic',
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// Full list of C reserved words, from: https://en.cppreference.com/w/c/keyword
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'auto', 'char', 'default', 'do', 'double', 'extern', 'float', 'inline', 'int', 'long', 'register', 'restrict', 'short', 'signed', 'sizeof', 'static', 'switch', 'typedef', 'union', 'unsigned', 'void', 'volatile', 'while', ]
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)
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// This is used for debugging only
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pub fn (f Fn) str() string {
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t := Table{
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}
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str_args := f.str_args(t)
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return '${f.name}($str_args) $f.typ'
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}
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pub fn (t &Table) debug_fns() string {
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mut s := strings.new_builder(1000)
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for _, f in t.fns {
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s.writeln(f.name)
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}
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return s.str()
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}
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// fn (types array_Type) print_to_file(f string) {
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// }
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const (
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integer_types = ['int', 'i8', 'byte', 'i16', 'u16', 'u32', 'i64', 'u64']
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float_types = ['f32', 'f64']
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reserved_type_param_names = ['R', 'S', 'T', 'U', 'W']
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)
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fn is_number_type(typ string) bool {
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return typ in integer_types || typ in float_types
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}
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fn is_integer_type(typ string) bool {
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return typ in integer_types
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}
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fn is_float_type(typ string) bool {
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return typ in float_types
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}
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fn is_primitive_type(typ string) bool {
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return is_number_type(typ) || typ == 'string'
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}
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/*
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fn (t mut Table) register_enum_val(typ, val string) {
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if t.enum_vals.len == 0 {
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t.enum_vals = [val]
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}
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}
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*/
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fn new_table(obfuscate bool) &Table {
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mut t := &Table{
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obfuscate: obfuscate
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// enum_vals: map[string][]string
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}
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t.register_builtin('int')
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t.register_builtin('size_t')
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t.register_type_with_parent('i8', 'int')
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t.register_type_with_parent('byte', 'int')
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t.register_type_with_parent('char', 'int') // for C functions only, to avoid warnings
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t.register_type_with_parent('i16', 'int')
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t.register_type_with_parent('u16', 'u32')
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t.register_type_with_parent('u32', 'int')
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t.register_type_with_parent('i64', 'int')
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t.register_type_with_parent('u64', 'u32')
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t.register_builtin('byteptr')
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t.register_builtin('intptr')
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t.register_builtin('f32')
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t.register_builtin('f64')
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t.register_builtin('rune')
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t.register_builtin('bool')
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t.register_builtin('void')
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t.register_builtin('voidptr')
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t.register_builtin('charptr')
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t.register_builtin('va_list')
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for c in reserved_type_param_names {
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t.register_builtin(c)
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}
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t.register_const('stdin', 'int', 'main', true)
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t.register_const('stdout', 'int', 'main', true)
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t.register_const('stderr', 'int', 'main', true)
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t.register_const('errno', 'int', 'main', true)
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t.register_type_with_parent('map_string', 'map')
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t.register_type_with_parent('map_int', 'map')
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return t
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}
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// If `name` is a reserved C keyword, returns `v_name` instead.
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fn (t &Table) var_cgen_name(name string) string {
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if name in c_reserved {
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return 'v_$name'
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}
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else {
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return name
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}
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}
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fn (t mut Table) register_module(mod string) {
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if mod in t.modules {
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return
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}
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t.modules << mod
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}
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fn (p mut Parser) register_array(typ string) {
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if typ.contains('*') {
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println('bad arr $typ')
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return
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}
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if !p.table.known_type(typ) {
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p.register_type_with_parent(typ, 'array')
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p.cgen.typedefs << 'typedef array $typ;'
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}
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}
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fn (p mut Parser) register_map(typ string) {
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if typ.contains('*') {
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println('bad map $typ')
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return
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}
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if !p.table.known_type(typ) {
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p.register_type_with_parent(typ, 'map')
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p.cgen.typedefs << 'typedef map $typ;'
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}
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}
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fn (table &Table) known_mod(mod string) bool {
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return mod in table.modules
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}
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fn (t mut Table) register_const(name, typ, mod string, is_pub bool) {
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t.consts << Var{
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name: name
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typ: typ
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is_const: true
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mod: mod
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idx: -1
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is_public: is_pub
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}
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}
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// Only for translated code
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fn (p mut Parser) register_global(name, typ string) {
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p.table.consts << Var{
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name: name
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typ: typ
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is_const: true
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is_global: true
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mod: p.mod
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is_mut: true
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idx: -1
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}
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}
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// Only for module functions, not methods.
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// That's why searching by fn name works.
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fn (t mut Table) register_fn(new_fn Fn) {
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t.fns[new_fn.name] = new_fn
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}
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fn (table &Table) known_type(typ_ string) bool {
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mut typ := typ_
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// 'byte*' => look up 'byte', but don't mess up fns
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if typ.ends_with('*') && !typ.contains(' ') {
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typ = typ.replace('*', '')
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}
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t := table.typesmap[typ]
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return t.name.len > 0 && !t.is_placeholder
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}
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fn (table &Table) known_type_fast(t &Type) bool {
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return t.name != '' && !t.is_placeholder
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}
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fn (t &Table) find_fn(name string) ?Fn {
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f := t.fns[name]
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if f.name.str != 0 {
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// TODO
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return f
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}
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return none
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}
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fn (t &Table) find_fn_is_script(name string, is_script bool) ?Fn {
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mut f := t.fns[name]
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if f.name.str != 0 {
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// TODO
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return f
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}
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// V script? Try os module.
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if is_script {
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println('trying replace $name')
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f = t.fns[name.replace('main__', 'os__')]
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if f.name.str != 0 {
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return f
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}
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}
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return none
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}
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fn (t &Table) known_fn(name string) bool {
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_ = t.find_fn(name) or {
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return false
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}
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return true
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}
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fn (t &Table) known_const(name string) bool {
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_ = t.find_const(name) or {
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return false
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}
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return true
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}
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fn (t mut Table) register_builtin(typ string) {
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if typ.len == 0 {
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return
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}
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if typ in t.typesmap {
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return
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}
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t.typesmap[typ] = Type{
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name: typ
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is_public: true
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}
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}
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fn (p mut Parser) register_type_with_parent(strtyp, parent string) {
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typ := Type{
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name: strtyp
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parent: parent
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mod: p.mod
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is_public: true
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}
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p.table.register_type(typ)
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}
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fn (t mut Table) register_type_with_parent(typ, parent string) {
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if typ.len == 0 {
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return
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}
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t.typesmap[typ] = Type{
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name: typ
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parent: parent
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is_public: true
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// mod: mod
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}
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}
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fn (t mut Table) register_type(typ Type) {
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if typ.name.len == 0 {
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return
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}
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t.typesmap[typ.name] = typ
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}
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fn (t mut Table) rewrite_type(typ Type) {
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if typ.name.len == 0 {
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return
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}
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t.typesmap[typ.name] = typ
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}
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fn (table mut Table) add_field(type_name, field_name, field_type string, is_mut bool, attr string, access_mod AccessMod) {
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if type_name == '' {
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print_backtrace()
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verror('add_field: empty type')
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}
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mut t := table.typesmap[type_name]
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t.fields << Var{
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name: field_name
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typ: field_type
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is_mut: is_mut
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attr: attr
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parent_fn: type_name // Name of the parent type
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access_mod: access_mod
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}
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table.typesmap[type_name] = t
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}
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fn (table mut Table) add_default_val(idx int, type_name, val_expr string) {
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mut t := table.typesmap[type_name]
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if t.default_vals.len == 0 {
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t.default_vals = [''].repeat(t.fields.len)
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}
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t.default_vals[idx] = val_expr
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table.typesmap[type_name] = t
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}
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fn (t &Type) has_field(name string) bool {
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_ = t.find_field(name) or {
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return false
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}
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return true
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}
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fn (t &Type) has_enum_val(name string) bool {
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return name in t.enum_vals
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}
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fn (t &Type) find_field(name string) ?Var {
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for field in t.fields {
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if field.name == name {
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return field
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}
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}
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return none
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}
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fn (table &Table) type_has_field(typ &Type, name string) bool {
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_ = table.find_field(typ, name) or {
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return false
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}
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return true
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}
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fn (table &Table) find_field(typ &Type, name string) ?Var {
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for field in typ.fields {
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if field.name == name {
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return field
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}
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}
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if typ.parent != '' {
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parent := table.find_type(typ.parent)
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for field in parent.fields {
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if field.name == name {
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return field
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}
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}
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}
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return none
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}
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fn (p mut Parser) add_method(type_name string, f Fn) {
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if !p.first_pass() && f.name != 'str' {
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return
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}
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if type_name == '' {
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print_backtrace()
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verror('add_method: empty type')
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}
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// TODO table.typesmap[type_name].methods << f
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mut t := p.table.typesmap[type_name]
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if f.name != 'str' && f in t.methods {
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p.error('redefinition of method `${type_name}.$f.name`')
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}
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t.methods << f
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p.table.typesmap[type_name] = t
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}
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fn (t &Type) has_method(name string) bool {
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_ = t.find_method(name) or {
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return false
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}
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return true
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}
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fn (table &Table) type_has_method(typ &Type, name string) bool {
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_ = table.find_method(typ, name) or {
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return false
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}
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return true
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}
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fn (table &Table) find_method(typ &Type, name string) ?Fn {
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t := table.typesmap[typ.name]
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for method in t.methods {
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if method.name == name {
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return method
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}
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}
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if typ.parent != '' {
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parent := table.find_type(typ.parent)
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for method in parent.methods {
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if method.name == name {
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return method
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}
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}
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return none
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}
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return none
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}
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fn (t &Type) find_method(name string) ?Fn {
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// println('$t.name find_method($name) methods.len=$t.methods.len')
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for method in t.methods {
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// println('method=$method.name')
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if method.name == name {
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return method
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}
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}
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return none
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}
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fn (table mut Table) add_gen_type(type_name, gen_type string) {
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mut t := table.typesmap[type_name]
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if gen_type in t.gen_types {
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return
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}
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t.gen_types << gen_type
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table.typesmap[type_name] = t
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}
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|
|
fn (p &Parser) find_type(name string) Type {
|
|
typ := p.table.find_type(name)
|
|
if typ.name == '' {
|
|
return p.table.find_type(p.prepend_mod(name))
|
|
}
|
|
return typ
|
|
}
|
|
|
|
fn (t &Table) find_type(name_ string) Type {
|
|
mut name := name_
|
|
if name.ends_with('*') && !name.contains(' ') {
|
|
name = name.replace('*', '')
|
|
}
|
|
if !(name in t.typesmap) {
|
|
// println('ret Type')
|
|
return Type{
|
|
}
|
|
}
|
|
return t.typesmap[name]
|
|
}
|
|
|
|
fn (p mut Parser) check_types2(got_, expected_ string, throw bool) bool {
|
|
mut got := got_
|
|
mut expected := expected_
|
|
// p.log('check types got="$got" exp="$expected" ')
|
|
if p.pref.translated {
|
|
return true
|
|
}
|
|
if got == expected {
|
|
return true
|
|
}
|
|
// generic return type
|
|
if expected == '_ANYTYPE_' {
|
|
p.cur_fn.typ = got
|
|
return true
|
|
}
|
|
if throw && p.base_type(got) == p.base_type(expected) {
|
|
return true
|
|
}
|
|
// variadic
|
|
if expected.starts_with('varg_') {
|
|
expected = expected[5..]
|
|
}
|
|
if got.starts_with('varg_') {
|
|
got = got[5..]
|
|
}
|
|
// Allow ints to be used as floats
|
|
if got == 'int' && expected == 'f32' {
|
|
return true
|
|
}
|
|
if got == 'int' && expected == 'f64' {
|
|
return true
|
|
}
|
|
if got == 'f64' && expected == 'f32' {
|
|
return true
|
|
}
|
|
if got == 'f32' && expected == 'f64' {
|
|
return true
|
|
}
|
|
// Allow ints to be used as longs
|
|
if got == 'int' && expected == 'i64' {
|
|
return true
|
|
}
|
|
if got == 'void*' && expected.starts_with('fn ') {
|
|
return true
|
|
}
|
|
if got.starts_with('[') && expected == 'byte*' {
|
|
return true
|
|
}
|
|
// Todo void* allows everything right now
|
|
if got == 'void*' || expected == 'void*' {
|
|
// || got == 'cvoid' || expected == 'cvoid' {
|
|
return true
|
|
}
|
|
// TODO only allow numeric consts to be assigned to bytes, and
|
|
// throw an error if they are bigger than 255
|
|
if got == 'int' && expected == 'byte' {
|
|
return true
|
|
}
|
|
if got == 'byteptr' && expected == 'byte*' {
|
|
return true
|
|
}
|
|
if got == 'byte*' && expected == 'byteptr' {
|
|
return true
|
|
}
|
|
if got == 'charptr' && expected == 'char*' {
|
|
return true
|
|
}
|
|
if got == 'char*' && expected == 'charptr' {
|
|
return true
|
|
}
|
|
if got == 'int' && expected == 'byte*' {
|
|
return true
|
|
}
|
|
// if got=='int' && expected=='voidptr*' {
|
|
// return true
|
|
// }
|
|
// byteptr += int
|
|
if got == 'int' && expected in ['byteptr', 'charptr'] {
|
|
return true
|
|
}
|
|
if got == 'Option' && expected.starts_with('Option_') {
|
|
return true
|
|
}
|
|
// lines := new_array
|
|
if got == 'array' && expected.starts_with('array_') {
|
|
return true
|
|
}
|
|
// Expected type "Option_os__File", got "os__File"
|
|
if expected.starts_with('Option_') && expected.ends_with(got) {
|
|
return true
|
|
}
|
|
// NsColor* return 0
|
|
if expected.ends_with('*') && got == 'int' {
|
|
return true
|
|
}
|
|
// if got == 'T' || got.contains('<T>') {
|
|
// return true
|
|
// }
|
|
// if expected == 'T' || expected.contains('<T>') {
|
|
// return true
|
|
// }
|
|
// TODO fn hack
|
|
if got.starts_with('fn ') && (expected.ends_with('fn') || expected.ends_with('Fn')) {
|
|
return true
|
|
}
|
|
// Allow pointer arithmetic
|
|
if expected == 'void*' && got == 'int' {
|
|
return true
|
|
}
|
|
// if p.fileis('_test') && is_number_type(got) && is_number_type(expected) {
|
|
// p.warn('got=$got exp=$expected $p.is_const_literal')
|
|
// }
|
|
// Allow `myu64 == 1`, `myfloat == 2` etc
|
|
if is_integer_type(got) && is_number_type(expected) && p.is_const_literal {
|
|
return true
|
|
}
|
|
if expected == 'integer' {
|
|
if is_integer_type(got) {
|
|
return true
|
|
}
|
|
else {
|
|
p.error('expected type `$expected`, but got `$got`')
|
|
}
|
|
}
|
|
expected = expected.replace('*', '')
|
|
got = got.replace('*', '').replace('ptr', '')
|
|
if got != expected {
|
|
// Interface check
|
|
if expected.ends_with('er') {
|
|
if p.satisfies_interface(expected, got, throw) {
|
|
return true
|
|
}
|
|
}
|
|
if !throw {
|
|
return false
|
|
}
|
|
else {
|
|
p.error('cannot convert `$got` to `$expected`')
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
fn (p mut Parser) base_type(name string) string {
|
|
typ := p.find_type(name)
|
|
if typ.parent != '' {
|
|
return p.base_type(typ.parent)
|
|
}
|
|
return name
|
|
}
|
|
|
|
// throw by default
|
|
fn (p mut Parser) check_types(got, expected string) bool {
|
|
if p.first_pass() {
|
|
return true
|
|
}
|
|
return p.check_types2(got, expected, true)
|
|
}
|
|
|
|
fn (p mut Parser) check_types_no_throw(got, expected string) bool {
|
|
return p.check_types2(got, expected, false)
|
|
}
|
|
|
|
fn (p mut Parser) check_types_with_token_index(got, expected string, var_token_idx int) {
|
|
if !p.check_types2(got, expected, false) {
|
|
p.error_with_token_index('expected type `$expected`, but got `$got`', var_token_idx)
|
|
}
|
|
}
|
|
|
|
fn (p mut Parser) satisfies_interface(interface_name, _typ string, throw bool) bool {
|
|
int_typ := p.table.find_type(interface_name)
|
|
typ := p.table.find_type(_typ)
|
|
for method in int_typ.methods {
|
|
if !typ.has_method(method.name) {
|
|
// if throw {
|
|
p.error("type `$_typ` doesn\'t satisfy interface " + '`$interface_name` (method `$method.name` is not implemented)')
|
|
// }
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
fn (table &Table) is_interface(name string) bool {
|
|
if !(name in table.typesmap) {
|
|
return false
|
|
}
|
|
t := table.typesmap[name]
|
|
return t.cat == .interface_
|
|
}
|
|
|
|
// Do we have fn main()?
|
|
fn (t &Table) main_exists() bool {
|
|
for _, f in t.fns {
|
|
if f.name == 'main__main' {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
fn (t &Table) all_test_function_names() []string {
|
|
mut res := []string
|
|
for _, f in t.fns {
|
|
if f.name.contains('__test_') {
|
|
res << f.name
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
fn (t &Table) find_const(name string) ?Var {
|
|
// println('find const l=$t.consts.len')
|
|
for c in t.consts {
|
|
if c.name == name {
|
|
return c
|
|
}
|
|
}
|
|
return none
|
|
}
|
|
|
|
// ('s', 'string') => 'string s'
|
|
// ('nums', '[20]byte') => 'byte nums[20]'
|
|
// ('myfn', 'fn(int) string') => 'string (*myfn)(int)'
|
|
fn (table &Table) cgen_name_type_pair(name, typ string) string {
|
|
// Special case for [10]int
|
|
if typ.len > 0 && typ[0] == `[` {
|
|
tmp := typ.all_after(']')
|
|
size := typ.all_before(']')
|
|
return '$tmp $name $size ]'
|
|
}
|
|
// fn()
|
|
else if typ.starts_with('fn (') {
|
|
T := table.find_type(typ)
|
|
if T.name == '' {
|
|
eprintln('function type `$typ` not found')
|
|
exit(1)
|
|
}
|
|
str_args := T.func.str_args(table)
|
|
return '$T.func.typ (*$name)( $str_args /*FFF*/ )'
|
|
}
|
|
// TODO tm hack, do this for all C struct args
|
|
else if typ == 'tm' {
|
|
return 'struct /*TM*/ tm $name'
|
|
}
|
|
return '$typ $name'
|
|
}
|
|
|
|
fn is_valid_int_const(val, typ string) bool {
|
|
x := val.int()
|
|
return match typ {
|
|
'byte'{
|
|
0 <= x && x <= 255
|
|
}
|
|
'u16'{
|
|
0 <= x && x <= 65535
|
|
}
|
|
// case 'u32': return 0 <= x && x <= math.MaxU32
|
|
// case 'u64': return 0 <= x && x <= math.MaxU64
|
|
// ////////////
|
|
'i8'{
|
|
-128 <= x && x <= 127
|
|
}
|
|
/*
|
|
case 'i16': return math.min_i16 <= x && x <= math.max_i16
|
|
case 'int': return math.min_i32 <= x && x <= math.max_i32
|
|
*/
|
|
|
|
// case 'i64':
|
|
// x64 := val.i64()
|
|
// return i64(-(1<<63)) <= x64 && x64 <= i64((1<<63)-1)
|
|
else {
|
|
true}}
|
|
}
|
|
|
|
fn (p mut Parser) typ_to_fmt(typ string, level int) string {
|
|
t := p.table.find_type(typ)
|
|
if t.cat == .enum_ {
|
|
return '%d'
|
|
}
|
|
match typ {
|
|
'string' {
|
|
return '%.*s'
|
|
}
|
|
// case 'bool': return '%.*s'
|
|
'ustring' {
|
|
return '%.*s'
|
|
}
|
|
'byte', 'bool', 'int', 'char', 'byte', 'i16', 'i8' {
|
|
return '%d'
|
|
}
|
|
'u16', 'u32' {
|
|
return '%u'
|
|
}
|
|
'f64', 'f32' {
|
|
return '%f'
|
|
}
|
|
'i64' {
|
|
return '%lld'
|
|
}
|
|
'u64' {
|
|
return '%llu'
|
|
}
|
|
'byte*', 'byteptr' {
|
|
return '%s'
|
|
}
|
|
// case 'array_string': return '%s'
|
|
// case 'array_int': return '%s'
|
|
'void' {
|
|
p.error('cannot interpolate this value')
|
|
}
|
|
else {
|
|
if typ.ends_with('*') {
|
|
return '%p'
|
|
}
|
|
}}
|
|
if t.parent != '' && level == 0 {
|
|
return p.typ_to_fmt(t.parent, level + 1)
|
|
}
|
|
return ''
|
|
}
|
|
|
|
fn type_to_safe_str(typ string) string {
|
|
r := typ.replace(' ', '').replace('(', '_').replace(')', '_')
|
|
return r
|
|
}
|
|
|
|
fn is_compile_time_const(s_ string) bool {
|
|
s := s_.trim_space()
|
|
if s == '' {
|
|
return false
|
|
}
|
|
if s.contains("\'") {
|
|
return true
|
|
}
|
|
for c in s {
|
|
if !((c >= `0` && c <= `9`) || c == `.`) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
fn (t &Type) contains_field_type(typ string) bool {
|
|
if !t.name[0].is_capital() {
|
|
return false
|
|
}
|
|
for field in t.fields {
|
|
if field.typ == typ {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// check for a function / variable / module typo in `name`
|
|
fn (p &Parser) identify_typo(name string) string {
|
|
// dont check if so short
|
|
if name.len < 2 {
|
|
return ''
|
|
}
|
|
name_dotted := mod_gen_name_rev(name.replace('__', '.'))
|
|
min_match := 0.50 // for dice coefficient between 0.0 - 1.0
|
|
mut output := ''
|
|
// check imported modules
|
|
mut n := p.table.find_misspelled_imported_mod(name_dotted, p, min_match)
|
|
if n.len > 0 {
|
|
output += '\n * module: `$n`'
|
|
}
|
|
// check consts
|
|
n = p.table.find_misspelled_const(name, p, min_match)
|
|
if n != '' {
|
|
output += '\n * const: `$n`'
|
|
}
|
|
// check types
|
|
typ,type_cat := p.table.find_misspelled_type(name, p, min_match)
|
|
if typ.len > 0 {
|
|
output += '\n * $type_cat: `$typ`'
|
|
}
|
|
// check functions
|
|
n = p.table.find_misspelled_fn(name, p, min_match)
|
|
if n.len > 0 {
|
|
output += '\n * function: `$n`'
|
|
}
|
|
// check function local variables
|
|
n = p.find_misspelled_local_var(name_dotted, min_match)
|
|
if n.len > 0 {
|
|
output += '\n * variable: `$n`'
|
|
}
|
|
return output
|
|
}
|
|
|
|
// compare just name part, some items are mod prefied
|
|
fn typo_compare_name_mod(a, b, b_mod string) f32 {
|
|
if a.len - b.len > 2 || b.len - a.len > 2 {
|
|
return 0
|
|
}
|
|
auidx := a.index('__') or {
|
|
return 0
|
|
} // TODO or {-1} once cgen lines bug is fixed //-1 }
|
|
buidx := b.index('__') or {
|
|
return 0
|
|
} // -1 }
|
|
a_mod := if auidx != -1 { mod_gen_name_rev(a[..auidx]) } else { '' }
|
|
a_name := if auidx != -1 { a[auidx + 2..] } else { a }
|
|
b_name := if buidx != -1 { b[buidx + 2..] } else { b }
|
|
if a_mod.len > 0 && b_mod.len > 0 && a_mod != b_mod {
|
|
return 0
|
|
}
|
|
return strings.dice_coefficient(a_name, b_name)
|
|
}
|
|
|
|
// find function with closest name to `name`
|
|
fn (table &Table) find_misspelled_fn(name string, p &Parser, min_match f32) string {
|
|
mut closest := f32(0)
|
|
mut closest_fn := ''
|
|
for _, f in table.fns {
|
|
if f.name.contains('__') && !p.is_mod_in_scope(f.mod) {
|
|
continue
|
|
}
|
|
c := typo_compare_name_mod(name, f.name, f.mod)
|
|
if c > closest {
|
|
closest = c
|
|
closest_fn = mod_gen_name_rev(f.name.replace('__', '.'))
|
|
}
|
|
}
|
|
return if closest >= min_match { closest_fn } else { '' }
|
|
}
|
|
|
|
// find imported module with closest name to `name`
|
|
fn (table &Table) find_misspelled_imported_mod(name string, p &Parser, min_match f32) string {
|
|
mut closest := f32(0)
|
|
mut closest_mod := ''
|
|
n1 := if name.starts_with('main.') { name[5..] } else { name }
|
|
for alias, mod in p.import_table.imports {
|
|
c := typo_compare_name_mod(n1, alias, '')
|
|
if c > closest {
|
|
closest = c
|
|
closest_mod = if alias == mod { alias } else { '$alias ($mod)' }
|
|
}
|
|
}
|
|
return if closest >= min_match { closest_mod } else { '' }
|
|
}
|
|
|
|
// find const with closest name to `name`
|
|
fn (table &Table) find_misspelled_const(name string, p &Parser, min_match f32) string {
|
|
mut closest := f32(0)
|
|
mut closest_const := ''
|
|
for cnst in table.consts {
|
|
if cnst.name.contains('__') && !p.is_mod_in_scope(cnst.mod) {
|
|
continue
|
|
}
|
|
c := typo_compare_name_mod(name, cnst.name, cnst.mod)
|
|
if c > closest {
|
|
closest = c
|
|
closest_const = mod_gen_name_rev(cnst.name.replace('__', '.'))
|
|
}
|
|
}
|
|
return if closest >= min_match { closest_const } else { '' }
|
|
}
|
|
|
|
// find type with closest name to `name`
|
|
fn (table &Table) find_misspelled_type(name string, p &Parser, min_match f32) (string,string) {
|
|
mut closest := f32(0)
|
|
mut closest_type := ''
|
|
mut type_cat := ''
|
|
for _, typ in table.typesmap {
|
|
if typ.name.contains('__') && !p.is_mod_in_scope(typ.mod) {
|
|
continue
|
|
}
|
|
c := typo_compare_name_mod(name, typ.name, typ.mod)
|
|
if c > closest {
|
|
closest = c
|
|
closest_type = mod_gen_name_rev(typ.name.replace('__', '.'))
|
|
type_cat = type_cat_str(typ.cat)
|
|
}
|
|
}
|
|
if closest >= min_match {
|
|
return closest_type,type_cat
|
|
}
|
|
return '',''
|
|
}
|
|
|
|
fn type_cat_str(tc TypeCategory) string {
|
|
tc_str := match tc {
|
|
.builtin{
|
|
'builtin'
|
|
}
|
|
.struct_{
|
|
'struct'
|
|
}
|
|
.func{
|
|
'function'
|
|
}
|
|
.interface_{
|
|
'interface'
|
|
}
|
|
.enum_{
|
|
'enum'
|
|
}
|
|
.union_{
|
|
'union'
|
|
}
|
|
.c_struct{
|
|
'C struct'
|
|
}
|
|
.c_typedef{
|
|
'C typedef'
|
|
}
|
|
.objc_interface{
|
|
'obj C interface'
|
|
}
|
|
.array{
|
|
'array'
|
|
}
|
|
.alias{
|
|
'type alias'
|
|
}
|
|
else {
|
|
'unknown'}}
|
|
return tc_str
|
|
}
|
|
|