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cgen: array_set()

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This commit is contained in:
Alexander Medvednikov 2020-03-07 16:39:15 +01:00
parent 63032c4bb7
commit fbf80dc315
5 changed files with 95 additions and 59 deletions
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24
vlib/v/ast/ast.v
View File

@ -8,15 +8,15 @@ import (
v.table
)
pub type Expr = InfixExpr | IfExpr | StringLiteral | IntegerLiteral | CharLiteral |
FloatLiteral | Ident | CallExpr | BoolLiteral | StructInit | ArrayInit | SelectorExpr | PostfixExpr |
AssignExpr | PrefixExpr | MethodCallExpr | IndexExpr | RangeExpr | MatchExpr |
CastExpr | EnumVal | Assoc | SizeOf | None | MapInit | IfGuardExpr | ParExpr | OrExpr |
pub type Expr = InfixExpr | IfExpr | StringLiteral | IntegerLiteral | CharLiteral |
FloatLiteral | Ident | CallExpr | BoolLiteral | StructInit | ArrayInit | SelectorExpr | PostfixExpr |
AssignExpr | PrefixExpr | MethodCallExpr | IndexExpr | RangeExpr | MatchExpr |
CastExpr | EnumVal | Assoc | SizeOf | None | MapInit | IfGuardExpr | ParExpr | OrExpr |
ConcatExpr | Type | AsCast
pub type Stmt = VarDecl | GlobalDecl | FnDecl | Return | Module | Import | ExprStmt |
ForStmt | StructDecl | ForCStmt | ForInStmt | CompIf | ConstDecl | Attr | BranchStmt |
HashStmt | AssignStmt | EnumDecl | TypeDecl | DeferStmt | GotoLabel | GotoStmt |
pub type Stmt = VarDecl | GlobalDecl | FnDecl | Return | Module | Import | ExprStmt |
ForStmt | StructDecl | ForCStmt | ForInStmt | CompIf | ConstDecl | Attr | BranchStmt |
HashStmt | AssignStmt | EnumDecl | TypeDecl | DeferStmt | GotoLabel | GotoStmt |
LineComment | MultiLineComment | AssertStmt | UnsafeStmt
// pub type Type = StructType | ArrayType
// pub struct StructType {
@ -463,10 +463,12 @@ pub:
pub struct AssignExpr {
pub:
op token.Kind
pos token.Position
left Expr
val Expr
op token.Kind
pos token.Position
left Expr
val Expr
//mut:
//left_type table.Type
}
pub struct GotoLabel {

1
vlib/v/checker/checker.v
View File

@ -157,6 +157,7 @@ fn (c mut Checker) assign_expr(assign_expr ast.AssignExpr) {
}
left_type := c.expr(assign_expr.left)
c.expected_type = left_type
// assign_expr.left_type = left_type
// t := c.table.get_type_symbol(left_type)
// println('setting exp type to $c.expected_type $t.name')
right_type := c.expr(assign_expr.val)

125
vlib/v/gen/cgen.v
View File

@ -9,14 +9,16 @@ import (
)
struct Gen {
out strings.Builder
typedefs strings.Builder
definitions strings.Builder // typedefs, defines etc (everything that goes to the top of the file)
table &table.Table
out strings.Builder
typedefs strings.Builder
definitions strings.Builder // typedefs, defines etc (everything that goes to the top of the file)
table &table.Table
mut:
fn_decl &ast.FnDecl // pointer to the FnDecl we are currently inside otherwise 0
tmp_count int
is_c_call bool // e.g. `C.printf("v")`
fn_decl &ast.FnDecl // pointer to the FnDecl we are currently inside otherwise 0
tmp_count int
is_c_call bool // e.g. `C.printf("v")`
is_assign_expr bool
is_array_set bool
}
pub fn cgen(files []ast.File, table &table.Table) string {
@ -383,9 +385,18 @@ fn (g mut Gen) expr(node ast.Expr) {
g.write('/* as */')
}
ast.AssignExpr {
g.is_assign_expr = true
g.expr(it.left)
g.write(' $it.op.str() ')
// arr[i] = val => `array_set(arr, i, val)`, not `array_get(arr, i) = val`
if !g.is_array_set {
g.write(' $it.op.str() ')
}
g.expr(it.val)
if g.is_array_set {
g.write(')')
g.is_array_set = false
}
g.is_assign_expr = false
}
ast.Assoc {
g.write('/* assoc */')
@ -498,40 +509,7 @@ fn (g mut Gen) expr(node ast.Expr) {
g.index_expr(it)
}
ast.InfixExpr {
// if it.left_type == table.string_type_idx {
// g.write('/*$it.left_type str*/')
// }
// string + string
if it.op == .plus && it.left_type == table.string_type_idx {
g.write('string_add(')
g.expr(it.left)
g.write(', ')
g.expr(it.right)
g.write(')')
}
else if it.op == .eq && it.left_type == table.string_type_idx {
g.write('string_eq(')
g.expr(it.left)
g.write(', ')
g.expr(it.right)
g.write(')')
}
// arr << val
else if it.op == .left_shift && g.table.get_type_symbol(it.left_type).kind == .array {
g.write('array_push(')
g.expr(it.left)
g.write(', ')
g.expr(it.right)
g.write(')')
}
else {
// if it.op == .dot {
// println('!! dot')
// }
g.expr(it.left)
g.write(' $it.op.str() ')
g.expr(it.right)
}
g.infix_expr(it)
}
ast.IntegerLiteral {
g.write(it.val.str())
@ -687,6 +665,49 @@ fn (g mut Gen) expr(node ast.Expr) {
}
}
fn (g mut Gen) infix_expr(it ast.InfixExpr) {
// if it.left_type == table.string_type_idx {
// g.write('/*$it.left_type str*/')
// }
// string + string, string == string etc
if it.left_type == table.string_type_idx {
fn_name := match it.op {
.plus{
'string_add('
}
.eq{
'string_eq('
}
.ne{
'string_ne('
}
else {
''}
}
g.write(fn_name)
g.expr(it.left)
g.write(', ')
g.expr(it.right)
g.write(')')
}
// arr << val
else if it.op == .left_shift && g.table.get_type_symbol(it.left_type).kind == .array {
g.write('array_push(')
g.expr(it.left)
g.write(', ')
g.expr(it.right)
g.write(')')
}
else {
// if it.op == .dot {
// println('!! dot')
// }
g.expr(it.left)
g.write(' $it.op.str() ')
g.expr(it.right)
}
}
fn (g mut Gen) index_expr(node ast.IndexExpr) {
// TODO else doesn't work with sum types
mut is_range := false
@ -729,11 +750,21 @@ fn (g mut Gen) index_expr(node ast.IndexExpr) {
if !is_range && node.container_type != 0 {
sym := g.table.get_type_symbol(node.container_type)
if sym.kind == .array {
g.write('array_get(')
g.expr(node.left)
g.write(', ')
g.expr(node.index)
g.write(')')
if g.is_assign_expr {
g.is_array_set = true
g.write('array_set(&')
g.expr(node.left)
g.write(', ')
g.expr(node.index)
g.write(', ')
}
else {
g.write('array_get(')
g.expr(node.left)
g.write(', ')
g.expr(node.index)
g.write(')')
}
}
else if sym.kind == .string {
g.write('string_at(')

1
vlib/v/gen/tests/1.c
View File

@ -69,6 +69,7 @@ i < 10; i++) {
array_int nums3 = array_slice(nums, 1, 2);
array_int nums4 = array_slice(nums, 1, nums.len);
int number = array_get(nums, 0);
array_set(&nums, 1, 10);
array_bool bools = new_array_from_c_array(2, 2, sizeof(array_bool), (bool[]){
true, false,
});

3
vlib/v/gen/tests/1.vv
View File

@ -59,11 +59,12 @@ fn foo(a int) {
for i := 0; i < 10; i++ {
}
nums := [1,2,3]
mut nums := [1,2,3]
nums2 := nums[..2]
nums3 := nums[1..2]
nums4 := nums[1..]
number := nums[0]
nums[1] = 10
bools := [true, false]
users := [User{}]
//ptr := &User{}