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Introduce a Parens AST (#189)

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* Introduce a Parens AST
This commit is contained in:
Dave Cunningham 2018-02-16 13:01:14 -05:00 committed by GitHub
parent f46dea2835
commit 2ea01b24d8
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GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 58 additions and 35 deletions
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9
ast/ast.go
View File

@ -520,6 +520,15 @@ type ObjectComp struct {
// ---------------------------------------------------------------------------
// Parens represents parentheses
// ( e )
type Parens struct {
NodeBase
Inner Node
}
// ---------------------------------------------------------------------------
// Self represents the self keyword.
type Self struct{ NodeBase }

52
ast/stdast.go
View File

@ -15797,7 +15797,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(67),
Column: int(79),
Column: int(80),
},
file: p1,
},
@ -22348,7 +22348,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(102),
Column: int(86),
Column: int(87),
},
file: p1,
},
@ -30534,7 +30534,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(162),
Column: int(58),
Column: int(59),
},
file: p1,
},
@ -31033,7 +31033,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(164),
Column: int(67),
Column: int(68),
},
file: p1,
},
@ -31722,7 +31722,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(166),
Column: int(95),
Column: int(96),
},
file: p1,
},
@ -37243,7 +37243,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(193),
Column: int(81),
Column: int(82),
},
file: p1,
},
@ -37954,7 +37954,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(195),
Column: int(87),
Column: int(88),
},
file: p1,
},
@ -39367,7 +39367,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(201),
Column: int(90),
Column: int(91),
},
file: p1,
},
@ -40078,7 +40078,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(203),
Column: int(87),
Column: int(88),
},
file: p1,
},
@ -41512,7 +41512,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(209),
Column: int(88),
Column: int(89),
},
file: p1,
},
@ -41955,7 +41955,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(211),
Column: int(86),
Column: int(87),
},
file: p1,
},
@ -69708,7 +69708,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(439),
Column: int(59),
Column: int(60),
},
file: p1,
},
@ -69737,7 +69737,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(439),
Column: int(59),
Column: int(60),
},
file: p1,
},
@ -69913,7 +69913,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(439),
Column: int(59),
Column: int(60),
},
file: p1,
},
@ -70867,7 +70867,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(442),
Column: int(74),
Column: int(75),
},
file: p1,
},
@ -73709,7 +73709,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(461),
Column: int(53),
Column: int(54),
},
file: p1,
},
@ -73732,7 +73732,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(460),
Column: int(74),
Column: int(75),
},
file: p1,
},
@ -90882,7 +90882,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(576),
Column: int(95),
Column: int(96),
},
file: p1,
},
@ -103665,7 +103665,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(694),
Column: int(94),
Column: int(95),
},
file: p1,
},
@ -104109,7 +104109,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(696),
Column: int(92),
Column: int(93),
},
file: p1,
},
@ -104553,7 +104553,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(698),
Column: int(83),
Column: int(84),
},
file: p1,
},
@ -116822,7 +116822,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(770),
Column: int(54),
Column: int(55),
},
file: p1,
},
@ -140302,7 +140302,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(907),
Column: int(62),
Column: int(63),
},
file: p1,
},
@ -140327,7 +140327,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(907),
Column: int(62),
Column: int(63),
},
file: p1,
},
@ -142156,7 +142156,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(923),
Column: int(87),
Column: int(88),
},
file: p1,
},
@ -142838,7 +142838,7 @@ var StdAst = &DesugaredObject{
},
End: Location{
Line: int(927),
Column: int(96),
Column: int(97),
},
file: p1,
},

7
desugarer.go
View File

@ -560,6 +560,13 @@ func desugar(astPtr *ast.Node, objLevel int) (err error) {
}
*astPtr = comp
case *ast.Parens:
*astPtr = node.Inner
err = desugar(astPtr, objLevel)
if err != nil {
return err
}
case *ast.Self:
// Nothing to do.

4
parser/context.go
View File

@ -99,6 +99,8 @@ func directChildren(node ast.Node) []ast.Node {
spec = spec.Outer
}
return result
case *ast.Parens:
return []ast.Node{node.Inner}
case *ast.Self:
return nil
case *ast.SuperIndex:
@ -172,6 +174,8 @@ func thunkChildren(node ast.Node) []ast.Node {
return []ast.Node{node.Body}
case *ast.ObjectComp:
return nil
case *ast.Parens:
return nil
case *ast.Self:
return nil
case *ast.SuperIndex:

7
parser/parser.go
View File

@ -724,11 +724,14 @@ func (p *parser) parseTerminal() (ast.Node, error) {
if err != nil {
return nil, err
}
_, err = p.popExpect(tokenParenR)
tokRight, err := p.popExpect(tokenParenR)
if err != nil {
return nil, err
}
return inner, nil
return &ast.Parens{
NodeBase: ast.NewNodeBaseLoc(locFromTokens(tok, tokRight)),
Inner: inner,
}, nil
// Literals
case tokenNumber:

4
parser/parser_test.go
View File

@ -229,9 +229,9 @@ var errorTests = []testError{
{`function a a`, `test:1:10-11 Expected ( but got (IDENTIFIER, "a")`},
{`import (a b)`, `test:1:11-12 Expected token ")" but got (IDENTIFIER, "b")`},
{`import (a+b)`, `test:1:9-12 Computed imports are not allowed`},
{`import (a+b)`, `test:1:8-13 Computed imports are not allowed`},
{`importstr (a b)`, `test:1:14-15 Expected token ")" but got (IDENTIFIER, "b")`},
{`importstr (a+b)`, `test:1:12-15 Computed imports are not allowed`},
{`importstr (a+b)`, `test:1:11-16 Computed imports are not allowed`},
{`local a = b ()`, `test:1:15 Expected , or ; but got end of file`},
{`local a = b; (a b)`, `test:1:17-18 Expected token ")" but got (IDENTIFIER, "b")`},

2
testdata/div4.golden vendored
View File

@ -1,6 +1,6 @@
RUNTIME ERROR: Overflow
-------------------------------------------------
testdata/div4:1:1-19 $
testdata/div4:1:1-20 $
1/(1e-160)/(1e-160)

2
testdata/error_function_fail.golden vendored
View File

@ -1,6 +1,6 @@
RUNTIME ERROR: Couldn't manifest function in JSON output.
-------------------------------------------------
testdata/error_function_fail:1:1-22 $
testdata/error_function_fail:1:1-23 $
error (function(x) 42)

2
testdata/percent_bad2.golden vendored
View File

@ -1,6 +1,6 @@
RUNTIME ERROR: Too many values to format: 1, expected 0
-------------------------------------------------
<std>:576:21-95 function <format_codes_arr>
<std>:576:21-96 function <format_codes_arr>
error ("Too many values to format: " + std.length(arr) + ", expected " + j)

2
testdata/percent_format_str4.golden vendored
View File

@ -1,6 +1,6 @@
RUNTIME ERROR: Too many values to format: 2, expected 1
-------------------------------------------------
<std>:576:21-95 function <format_codes_arr>
<std>:576:21-96 function <format_codes_arr>
error ("Too many values to format: " + std.length(arr) + ", expected " + j)

2
testdata/string_plus_function.golden vendored
View File

@ -1,6 +1,6 @@
RUNTIME ERROR: Couldn't manifest function in JSON output.
-------------------------------------------------
testdata/string_plus_function:1:1-23 $
testdata/string_plus_function:1:1-24 $
"xxx" + (function() 42)