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ast: ParExpr, OrExpr, IfGuardExpr; ForInStmt fix; remove all cap vars
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.github/FUNDING.yml
vendored
1
.github/FUNDING.yml
vendored
@ -1,3 +1,4 @@
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# These are supported funding model platforms
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patreon: vlang
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github: [medvednikov]
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@ -2014,21 +2014,21 @@ fn (p mut Parser) var_expr(v Var) string {
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mut typ := v.typ
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// Function pointer?
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if p.base_type(typ).starts_with('fn ') && p.tok == .lpar {
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T := p.table.find_type(p.base_type(typ))
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tt := p.table.find_type(p.base_type(typ))
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p.gen('(')
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p.fn_call_args(mut T.func, [])
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p.fn_call_args(mut tt.func, [])
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p.gen(')')
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typ = T.func.typ
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typ = tt.func.typ
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}
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// users[0].name
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if p.tok == .lsbr {
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typ = p.index_expr(typ, fn_ph)
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if p.base_type(typ).starts_with('fn ') && p.tok == .lpar {
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T := p.table.find_type(p.base_type(typ))
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tt := p.table.find_type(p.base_type(typ))
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p.gen('(')
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p.fn_call_args(mut T.func, [])
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p.fn_call_args(mut tt.func, [])
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p.gen(')')
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typ = T.func.typ
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typ = tt.func.typ
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}
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}
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// a.b.c().d chain
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@ -2364,10 +2364,10 @@ fn (p mut Parser) index_expr(typ_ string, fn_ph int) string {
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// [2..
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if p.tok != .dotdot {
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index_pos := p.cgen.cur_line.len
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T := p.table.find_type(p.expression())
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tt := p.table.find_type(p.expression())
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// Allows only i8-64 and byte-64 to be used when accessing an array
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if T.parent != 'int' && T.parent != 'u32' {
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p.check_types(T.name, 'int')
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if tt.parent != 'int' && tt.parent != 'u32' {
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p.check_types(tt.name, 'int')
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}
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if p.cgen.cur_line[index_pos..].replace(' ', '').int() < 0 {
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p.error('cannot access negative array index')
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@ -2402,10 +2402,10 @@ fn (p mut Parser) index_expr(typ_ string, fn_ph int) string {
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}
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}
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else {
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T := p.table.find_type(p.expression())
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tt := p.table.find_type(p.expression())
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// TODO: Get the key type of the map instead of only string.
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if is_map && T.parent != 'string' {
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p.check_types(T.name, 'string')
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if is_map && tt.parent != 'string' {
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p.check_types(tt.name, 'string')
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}
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}
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p.check(.rsbr)
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@ -3065,14 +3065,14 @@ fn (p mut Parser) js_decode() string {
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cjson_tmp := p.get_tmp()
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mut decl := '$typ $tmp; '
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// Init the struct
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T := p.table.find_type(typ)
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for field in T.fields {
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tt := p.table.find_type(typ)
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for field in tt.fields {
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def_val := type_default(field.typ)
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if def_val != '' {
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decl += '${tmp}.$field.name = OPTION_CAST($field.typ) $def_val;\n'
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}
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}
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p.gen_json_for_type(T)
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p.gen_json_for_type(tt)
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decl += 'cJSON* $cjson_tmp = json__json_parse($expr);'
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p.cgen.insert_before(decl)
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// p.gen('jsdecode_$typ(json_parse($expr), &$tmp);')
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@ -3085,8 +3085,8 @@ fn (p mut Parser) js_decode() string {
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else if op == 'encode' {
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p.check(.lpar)
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typ,expr := p.tmp_expr()
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T := p.table.find_type(typ)
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p.gen_json_for_type(T)
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tt := p.table.find_type(typ)
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p.gen_json_for_type(tt)
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p.check(.rpar)
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p.gen('json__json_print(json__jsencode_${typ}($expr))')
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return 'string'
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@ -11,7 +11,7 @@ import (
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pub type Expr = InfixExpr | IfExpr | StringLiteral | IntegerLiteral | CharLiteral |
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FloatLiteral | Ident | CallExpr | BoolLiteral | StructInit | ArrayInit | SelectorExpr | PostfixExpr |
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AssignExpr | PrefixExpr | MethodCallExpr | IndexExpr | RangeExpr | MatchExpr |
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CastExpr | EnumVal | Assoc | SizeOf | None | MapInit | OrExpr | ParExpr
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CastExpr | EnumVal | Assoc | SizeOf | None | MapInit | IfGuardExpr | ParExpr | OrExpr
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pub type Stmt = VarDecl | GlobalDecl | FnDecl | Return | Module | Import | ExprStmt |
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ForStmt | StructDecl | ForCStmt | ForInStmt | CompIf | ConstDecl | Attr | BranchStmt |
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@ -159,11 +159,12 @@ mut:
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pub struct MethodCallExpr {
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pub:
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// tok token.Token
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pos token.Position
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expr Expr
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name string
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args []Expr
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muts []bool
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pos token.Position
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expr Expr
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name string
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args []Expr
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muts []bool
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or_block OrExpr
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}
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pub struct Return {
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@ -355,11 +356,13 @@ pub:
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pub struct ForInStmt {
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pub:
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key_var string
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val_var string
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cond Expr
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stmts []Stmt
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pos token.Position
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key_var string
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val_var string
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cond Expr
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is_range bool
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high Expr // `10` in `for i in 0..10 {`
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stmts []Stmt
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pos token.Position
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}
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pub struct ForCStmt {
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@ -492,12 +495,21 @@ pub:
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expr Expr
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}
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pub struct OrExpr {
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// `if [x := opt()] {`
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pub struct IfGuardExpr {
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pub:
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var_name string
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expr Expr
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}
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// `or { ... }`
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pub struct OrExpr {
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pub:
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stmts []Stmt
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// var_name string
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// expr Expr
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}
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pub struct Assoc {
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pub:
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name string
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@ -168,6 +168,10 @@ fn (f mut Fmt) stmt(node ast.Stmt) {
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}
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f.write(' in ')
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f.expr(it.cond)
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if it.is_range {
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f.write(' .. ')
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f.expr(it.high)
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}
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f.writeln(' {')
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f.stmts(it.stmts)
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f.writeln('}')
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@ -421,19 +425,24 @@ fn (f mut Fmt) expr(node ast.Expr) {
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}
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}
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f.write(')')
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if it.or_block.stmts.len > 0 {
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f.writeln(' or {')
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f.stmts(it.or_block.stmts)
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f.write('}')
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}
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}
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ast.None {
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f.write('none')
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}
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ast.OrExpr {
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ast.IfGuardExpr {
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f.write(it.var_name + ' := ')
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f.expr(it.expr)
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}
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ast.ParExpr{
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ast.ParExpr {
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f.write('(')
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f.expr(it.expr)
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f.write(')')
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}
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}
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ast.PostfixExpr {
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f.expr(it.expr)
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f.write(it.op.str())
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@ -887,9 +887,10 @@ fn (p mut Parser) dot_expr(left ast.Expr, left_type table.Type) ast.Expr {
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if p.tok.kind == .lpar {
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p.next()
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args,muts := p.call_args()
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mut or_stmts := []ast.Stmt
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if p.tok.kind == .key_orelse {
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p.next()
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p.parse_block()
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or_stmts = p.parse_block()
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}
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mcall_expr := ast.MethodCallExpr{
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expr: left
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@ -897,6 +898,9 @@ fn (p mut Parser) dot_expr(left ast.Expr, left_type table.Type) ast.Expr {
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args: args
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muts: muts
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pos: p.tok.position()
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or_block: ast.OrExpr{
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stmts: or_stmts
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}
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}
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mut node := ast.Expr{}
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node = mcall_expr
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@ -1064,9 +1068,13 @@ fn (p mut Parser) for_statement() ast.Stmt {
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}
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// 0 .. 10
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// start := p.tok.lit.int()
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// TODO use RangeExpr
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mut high_expr := ast.Expr{}
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mut is_range := false
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if p.tok.kind == .dotdot {
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is_range = true
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p.check(.dotdot)
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p.expr(0)
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high_expr,_ = p.expr(0)
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}
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// p.table.register_var(table.Var{
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// name: var_name
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@ -1085,6 +1093,8 @@ fn (p mut Parser) for_statement() ast.Stmt {
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cond: cond
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key_var: var_name
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val_var: val_name
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high: high_expr
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is_range: is_range
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}
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}
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// `for cond {`
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@ -1119,7 +1129,7 @@ fn (p mut Parser) if_expr() ast.Expr {
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name: var_name
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typ: typ
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})
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cond = ast.OrExpr{
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cond = ast.IfGuardExpr{
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var_name: var_name
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expr: expr
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}
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